УСТРОЙСТВО ДЛЯ УЛУЧШЕНИЯ ВАКУУМА В УСИЛИТЕЛЕ ТОРМОЗОВ

Группа изобретений относится к области транспортного машиностроения. Устройство усиления разрежения для усилителя тормозной системы содержит корпус, обратный клапан, эжектор и поршень. Корпус содержит первое отверстие, соединенное с усилителем, второе отверстие, соединенное с впускным коллектором, третье отверстие, соединенное с воздухозаборником и четвертое отверстие, сообщающееся с атмосферой. Обратный клапан расположен между первым отверстием и вторым отверстием. Эжектор расположен между вторым отверстием и третьим отверстием. Поршень расположен между третьим отверстием и четвертым отверстием и выполнен с возможностью выборочного ограничения потока текучей среды через эжектор на основе разности давлений между первым отверстием и четвертым отверстием. Достигается обеспечение устойчивой работы устройства. 2 н. и 12 з.п. ф-лы, 1 ил.

КЛАПАННОЕ УСТРОЙСТВО С УПРАВЛЯЕМЫМ ПОСРЕДСТВОМ КАРДАННОГО ШАРНИРА ЭЛЕМЕНТОМ ЗАКРЫТИЯ КЛАПАНА

Изобретение относится к области транспортного машиностроения, а именно к клапанным устройствам автомобиля. Клапанное устройство содержит приводимый посредством элемента клапана по отношению к седлу клапана для открывания или закрывания поперечного сечения потока для рабочей среды в положение открытия или закрытия элемент закрывания клапана. Элемент закрывания клапана соединен с элементом клапана посредством карданного шарнира таким образом, что элемент закрывания клапана может пространственно поворачиваться относительно элемента клапана. Достигается уменьшение износа клапана и улучшение работы клапана за счет снижения деформации элемента закрывания и седла клапана. 4 з.п. ф-лы, 1 ил.

УСТРОЙСТВО СТОЯНОЧНОГО ТОРМОЗА ДЛЯ ТОРМОЗНОЙ СИСТЕМЫ ЖЕЛЕЗНОДОРОЖНОГО ПОДВИЖНОГО СОСТАВА

Изобретение относится к области тормозного оборудования железнодорожного подвижного состава. Привод стояночного тормоза включает в себя полый корпус, узел поршня, шток поршня, средство для предотвращения поворота упомянутого штока поршня, пружинный элемент, средство соединения по текучей среде, первую вытянутую резьбу, храповой механизм, отверстие, выполненное в упомянутом храповике аксиально, вторую резьбу, выполненную на поверхности аксиального отверстия, вал и зажимной кулачок. Устройство стояночного тормоза включает в себя храповик, установленный для поворота на штоке поршня с резьбой тормозного привода, и зажимной кулачок, входящий в зацепление с храповиком. Ручное устройство расцепления для устройства стояночного тормоза в железнодорожном вагоне включает в себя кронштейн, L-образную прорезь, выполненную в упомянутом кронштейне, удлиненный элемент соединительного звена, средство для соединения второго конца элемента соединительного звена с упомянутым тормозным приводом, захватный элемент ...

СХЕМА И РАСПРЕДЕЛИТЕЛЬНЫЙ БЛОК И ОБРАЗОВАННОЕ ИМИ УСТРОЙСТВО УПРАВЛЕНИЯ ТОРМОЗАМИ РЕЛЬСОВЫХ ТРАНСПОРТНЫХ СРЕДСТВ, А ТАКЖЕ РАСПРЕДЕЛИТЕЛЬНЫЙ КОМПЛЕКТ ДЛЯ КОНФИГУРИРОВАНИЯ И СПОСОБ ФОРМИРОВАНИЯ УСТРОЙСТВА УПРАВЛЕНИЯ ТОРМОЗАМИ

Изобретение относится к схеме (S1), содержащей флюидную магистральную матрицу (L1) и подключенные к флюидной магистральной матрице (L1) тормозные компоненты (11, 12, 13, 14, 15; 11, 12, 13, 14, 16), причем предусмотрено, по меньшей мере, одно устройство сопряжения (S1R, S1Y, S1Cv, S1X) для подключения распределительного блока (Ri, Yj, Cvk, Xl). Устройство сопряжения (S1R, S1Y, S1Cv, S1X) выполнено таким образом, что за счет подключения или замены распределительного блока (S1R, S1Y, S1Cv, S1X) можно выполнять конфигурацию (K.Ri,Yj,Cvk,Xl) флюидной магистральной матрицы. Изобретение относится также к распределительному блоку (Ri, Yj, Cvk, Xl), который за счет подключения, по меньшей мере, к одному устройству сопряжения (S1R, S1Y, S1Cv, S1X) схемы (S1) предназначен для выполнения конфигурации (K.Ri,Yj,Cvk,Xl) флюидной магистральной матрицы (L1) схемы (S1). Обеспечивается простая адаптация щита элементов управления тормозами и электропневматических тормозных модулей. 6 н. и 9 з.п. ф-лы, 11 ...

СПОСОБ УПРАВЛЕНИЯ ТОРМОЗОМ ПОДВИЖНОГО СОСТАВА ЖЕЛЕЗНОДОРОЖНОГО ТРАНСПОРТА И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Изобретение относится к области железнодорожного транспорта, в частности к способам управления тормозом подвижного состава железнодорожного транспорта. Способ управления тормозом подвижного состава железнодорожного транспорта включает выбор режима управления с возможностью автоматического выполнения заданной ступени торможения, при котором рукоятку модуля управления переводят в тормозную позицию и без задержки возвращают в позицию "Перекрыша с питанием". Способ также включает этапы автоматического выполнения измененной на минимальную программно заложенную величину заданной ступени торможения, при котором меняют величину заданной ступени с помощью блока корректировки заданных величин, после чего переводят рукоятку в тормозную позицию и без задержки возвращают в позицию "Перекрыша с питанием". Выбор режимов управления осуществляют с помощью рукоятки модуля управления, количество управляющих позиций которой соответствует количеству режимов управления тормозом, при этом для осуществления автоматического ...

КЛАПАН АВАРИЙНОГО ЭКСТРЕННОГО ТОРМОЖЕНИЯ

Полезная модель относится к оборудованию, предназначенному для разрядки тормозной магистрали железнодорожного состава экстренным темпом. Техническим результатом является обеспечение возможности работы механизма переключения контактов микровыключателей смонтированного в нижней части корпуса при сохранении усилия при нажатии кнопки клапана аварийного экстренного торможения, который достигается за счет того, что клапан аварийного экстренного торможения, содержащий корпус, в котором смонтированы входной и выходной патрубки, внутри корпуса размещен шток с канавками и кнопкой в верхней части, также в корпусе смонтированы элементы фиксации штока, в нижней части штока на толкателе поршня смонтирован запирающий элемент, отличающийся тем, что толкатель поршня через разделяющую перегородку соединен с нижней частью корпуса, при этом на нижней оконечности толкателя поршня, которая находится под разделяющей перегородкой, выполнен кулачек, на котором закреплены контакты, с возможностью замыкания микровыключателей ...

ЭЛЕКТРОГИДРАВЛИЧЕСКОЕ УСТРОЙСТВО РЕГУЛИРОВАНИЯ ДАВЛЕНИЯ

Электрогидравлическое устройство регулирования давления, в частности устройство регулирования тормозных сил, такое, как противоблокировочное регулирующее устройство или устройство регулирования проскальзывания ведущих колес, содержит электромагнитные клапаны, установленные на держателе. Устройство содержит также катушки, которые установлены на корпусах клапанов и на своих выступающих за держатель частях снабжены электрическими контактными элементами. Устройство содержит крышку, закрывающую выступающие части катушек и контактные элементы. Несущий элемент устройства предназначен для размещения катушек и расположен внутри крышки. Крышка или часть крышки предназначена для размещения электронного регулятора или деталей для присоединения электронного регулятора. К обращенной к катушкам нижней стороне преимущественно пластинообразного несущего элемента прилегают гильзы, замыкающие магнитную цепь. Гильзы установлены подпружиненно на корпусах клапанов. Технический результат, достигаемый при реализации ...

КОМПОНОВКА СИСТЕМЫ ПНЕВМОТОРМОЗА РЕЛЬСОВОГО ТРАНСПОРТНОГО СРЕДСТВА

Группа изобретений относится к области транспортного машиностроения. Компоновка системы пневмотормоза рельсового транспортного средства включает тормозной цилиндр, распределительный клапан, образующий в зависимости от давления в главной магистрали соответствующее давление тормозного цилиндра, которое подается в тормозной цилиндр по магистрали. Распределительный клапан взаимодействует с пневмодатчиком. Запасный воздушный резервуар для накопления запасного воздуха для тормозного цилиндра выполнен с возможностью управления распределительным клапаном. Пневмодатчик установлен на распределительном клапане и, с одной стороны, соединен для снабжения энергией с источником энергии, а, с другой стороны, для записи данных с блоком-накопителем данных, включающим интерфейс. Записанные в блоке-накопителе данные содержат информацию об уровне давления в тормозном цилиндре. Достигается повышение надежности устройства, а также снижение затрат на профилактику и поддержание устройства в исправном состоянии.

ПОДВЕСКА КЛЕЩЕВОГО МЕХАНИЗМА ДИСКОВОГО ТОРМОЗА

Изобретение позволяет упростить регламентные работы при эксплуатации тормозов высокоскоростного железнодорожного транспорта путем обеспечения осмотра тормозных накладок без снятия тормоза с рамы тележки. Для этого, отсоединив тяги параллелограммного подвеса башмаков, можно сдвинуть башмаки с диска, развернув в смотровую канаву клещевой механизм на соответствующей оси предлагаемого, в частности двухстепенного шарнира. Не нужно отключать электро- и пневмокоммуникации, а отсоединение и подсоединение тяг не требует специального инструмента.

ПОДВЕСКА КЛЕЩЕВОГО МЕХАНИЗМА ДИСКОВОГО ТОРМОЗА

Изобретение позволяет упростить регламентные работы при эксплуатации тормозов высокоскоростного железнодорожного транспорта путем обеспечения осмотра тормозных накладок без снятия тормоза с рамы тележки. Для этого, отсоединив тяги параллелограммного подвеса башмаков, можно сдвинуть башмаки с диска, развернув в смотровую канаву клещевой механизм на соответствующей оси предлагаемого, в частности двухстепенного шарнира. Не нужно отключать электро- и пневмокоммуникации, а отсоединение и подсоединение тяг не требует специального инструмента.

Воздухораспределитель

Клапан постоянного давления для воздушных тормозов

ВОЗДУХОРАСПРЕДЕЛИТЕЛЬ

Кран машиниста

АВТОМАТИЧЕСКИЙ РЕГУЛЯТОР ТОРМОЗНОЙ РЫЧАЖНОЙ ПЕРЕДАЧИ

УСТРОЙСТВО ДЛЯ ЗАМЕЩЕНИЯ ЭЛЕКТРИЧЕСКОГО ТОРМОЗА ПНЕВМАТИЧЕСКИМ

Воздухораспределитель

Устройство, предусматривающее осуществление груженого и порожнего режима в автоматических воздушных тормозах

ВОЗДУХОВЫПУСКНОЙ ТОРМОЗНОЙ КЛАПАН

Устройство для двухрежимного регулирования хода паро-воздушного тормозного насоса

Mehrwegesitzventil

The invention relates to a multi-way seat valve, especially for hydraulic high-pressure control circuits, comprising a metallic valve closing member (1) and a metallic valve seat (2) with a hydraulic fluid (4) opening, wherein the valve seat (2) is accommodated in the valve housing (11) and the valve closing element is movably guided in the housing (11). A non-metallic sealing element (3) is placed in between the valve closing element (1) and the valve seat (2).

BREMSKRAFTVERSTÄRKER MIT AUTOMATISCHER BETÄTIGUNG UND GEREGELTER RESERVE

Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers

The electromagnetically actuated valve has a cylindrical bore in which a cylindrical armature element (18) is located. The armature operates against a ball valve (17) to control the flow of fluid from inlet (13) to outlet (15). The armature is located at the centre of a ring shaped coil assembly (34). The main body and armature of the actuator are produced of magnetic material and the armature slides in a guide tube (20) that has three layers, the inner and outer surface layers are of a non-magnetic steel, while the inner is of a magnetic steel with good deep drawing properties. ADVANTAGE - Guide tube material reduces possibility of jamming of armature.

Ventilbaugruppe als Park-Löse-Ventil für ein Anhängefahrzeug

Die Erfindung betrifft eine Ventilbaugruppe als Park-Löse-Ventil (20) für ein Anhängefahrzeug mit Federspeicherbremse, mit einer in einem Gehäuse (22) axial bewegbaren Steuerstange (21), welche an einem Ende und außerhalb des Gehäuses mit einem Betätigungsknopf (25) versehen ist. Erfindungsgemäß ist ein zum Betätigungsknopf (25) benachbarter Anzeigeknopf (30) vorgesehen, welcher- in einer Parkstellung der Steuerstange (21) weniger aus dem Gehäuse (22) herausragt als der Betätigungsknopf (25) und- in einer Lösestellung weiter aus dem Gehäuse (22) hervorragt als der Betätigungsknopf (25).

Pneumatically resettable reversing valve

The pneumatically resettable reversing valve 4, manually shiftable into three positions, for a dual line trailer brake system, which in addition to a service brake also comprises a spring brake having a spring brake cylinder 12, has a connection 3 for the supply line led from the brake line coupling, a connection 20 for the supply line 19 leading to a compressed air reservoir, a connection 21 for a line 22 leading to the spring brake cylinders and a venting aperture 24. The reversing valve 4 has a control slide 30, on which an emergency brake piston 38 is provided, which is tightly guided on the control slide 30 and supported with its movement limited. The emergency brake piston is acted upon on one side by the pressure in the supply line 2 led from the brake line coupling and on the other side by the pressure in the compressed air reservoir 14, so that when the pressure in the supply line 2 led from the brake line coupling falls, the emergency brake piston 38 reverses the control slide ...

Elektromagnetventil, insbesondere für schlupfgeregelte Kraftfahrzeugbremsanlagen

The invention relates to an electromagnetic valve with a valve housing (1) having a plurality of valve components required for its operation, e.g. a closing body fitted to the magnet armature (5) and a magnet core (7), in which the closing body is movably guided in relation to a valve seat (11) and the armature (5) in relation to the core (7), and with a magnet coil (14) influencing the actuation of the armature (5) in order to block or open the pressure medium connection between at least one pressure medium inlet (9) and outlet channel (19) in the valve by means of the body, where there is a seal between the outer periphery of the armature and the inner periphery of the valve housing. In parallel with the seal (3) there is a nozzle (16) in the armature (5) having at least one means (22) of varying the nozzle cross-section dependently upon the temperature, where, as the temperature drops, the nozzles has an open cross-section for a pressure medium connection between a pressure medium chambre ...

KRAFTFAHRZEUGBREMSSYSTEM UND VERFAHREN ZU SEINER BEDIENUNG

Elektropneumatische Bremsanlage

Die Erfindung betrifft eine elektropneumatische Bremsanlage (1) für ein Nutzfahrzeug oder einen Anhänger. Hierbei erfolgt eine elektronische Steuerung der Federspeicher-Feststellbremse, indem nach manueller Vorgabe eines Feststellbrems-Betätigungswunsches elektronisch der Druck in einer Federspeicherkammer (17a, 17b) über eine Federspeicherleitung (16) gesteuert wird. Erfindungsgemäß ist die Federspeicherleitung (16) mit einer Zweigleitung (27) verbunden, welche über ein manuell betätigbares Entlüftungs- und Sperrelement (28) mit einer Entlüftung (30) verbunden ist. Kommt es zu einem Einbruch der elektrischen Leistungsversorgung, kann dennoch erfindungsgemäß durch Betätigung des Entlüftungs- und Sperrelements (28) vom Benutzer die Parkbremse betätigt werden.

BREMSEINRICHTUNG MIT EINEM DRUCKMITTELBETÄTIGTEN AKTUATOR

ELEKTROMAGNETVENTIL, INSBESONDERE FÜR HYDRAULISCHE KRAFTFAHRZEUGBREMSANLAGEN MIT RADSCHLUPFREGELUNG

ELEKTRONISCHES BREMSSYSTEM, INSBESONDERE FÜR NUTZFATHRZEUGANHÄNGER

ELEKTROHYDRAULISCHE DRUCKREGELVORRICHTUNG.

Trailer brake system for motor vehicles

Electromagnetic valve for hydraulic braking system in motor vehicle

The valve comprises a pressure medium aperture in the valve butt and a further aperture between the valve butt and the valve casing, and pressure medium channels arranged on both sides of the valve butt in the valve casing. A permanent hydraulic connection between both pressure medium channels (1, 2) is provided over one of the pressure medium apertures (3, 4) in an initial position of the electromagnetic valve (15). The valve comprises a movable valve pestle arranged axial in a valve casing, which is fastened to a magnet armature, as well as an axial in the valve casing movable valve butt. A pressure medium aperture in the valve butt is closed or opened by the valve pestle. A further pressure medium aperture is arranged between the valve butt and the valve casing, and pressure medium channels are arranged on both sides of the valve butt in the valve casing. A permanent hydraulic connection between both pressure medium channels (1, 2) is provided over one of the pressure medium apertures ...

Magnetventil mit einem Rückschlagventil

Ein Magnetventil (1) weist ein zwischen einem Druckmitteleinlaß (17) und einem Druckmittelauslaß (18) angeordnetes Sitzventil (26) und im Bypass zu diesem ein Rückschlagventil (30) mit einem Schließkörper (41) und als ebenen Ventilsitz eine Kreisringfläche (45) an der Stirnwand (46) einer den Schließkörper (41) aufnehmenden hohlzylindrischen Ausnehmung (34) eines Ventilbauteils (31) auf. Der Schließkörper (41) hat einen scheibenförmigen formsteifen Kern (42) mit einer wenigstens einseitig aufgebrachten, dem Ventilsitz zugewandten gummielastischen Beschichtung (43). DOLLAR A Das Magnetventil (1) ist in schlupfgeregelten hydraulischen Bremsanlagen von Kraftfahrzeugen verwendbar.

Differenzdruckventil und Bremsanlage mit einem solchen Ventil

Die Erfindung bezieht sich auf ein Differenzdruckventil für eine elektrohydraulische Bremsanlage nach dem Brake-by-wire-System.Dazu ist ein Ventilschließkörper (20) und ein Betätigungskörper (24) vorgesehen, wobei der Betätigungskörper (24) in Schließrichtung von einer Ventilschließfeder (25) und der Ventilschließkörper (20) in Öffnungsrichtung von einer Ventilöffnungsfeder (22) belastet ist. Beide Federn sich am Ventilgehäuse (1) abgestützt.Der Betätigungskörper (24) wird als Magnetanker eines Elektromagneten ausgeführt, so dass bei einer Betätigung des Ventils dieser Körper vom Ventilschließkörper (20) entfernt wird, so dass dann das Öffnungsverhalten des Ventils allein von der Ventilöffnungsfeder (22), die den Differenzdruck zwischen Ein- und Ausgang (A, B) des Ventils definiert, bestimmt wird.

Pneumatische Ventileinheit, Ventilanordnung, pneumatische Bremsanlage und Anhängefahrzeug

Die Erfindung betrifft eine pneumatische Ventileinheit (108) für eine Bremsanlage eines Anhängefahrzeugs, mit folgenden Merkmalen:a) ein Bedienelement (117) mit Stellungen „Lösen“ (LR), „Fahren“ (FD), „Parken“ (PP);b) ein Versorgungsanschluss (1-1) ist mit einer Druckluftversorgung eines Zugfahrzeugs verbindbar;c) ein Vorratsbehälteranschluss (1-2) ist mit einem Vorratsbehälter verbindbar;d) ein Notbremsanschluss (21) ist mit einer Notbremseinrichtung verbindbar;e) ein Druckanschluss (22) ist mit Lösekammern einer Federspeicherbremseinrichtung verbindbar;f) ein Entlüftungsanschluss (3) ist mit einer Entlüftung (123) verbindbar.

Aggregat für eine Fahrzeugbremsanlage

Aggregat für eine Fahrzeugbremsanlage, mit einem Fluidkanäle aufweisenden Ventilblock (12), in den Magnetventile (14) eingesetzt sind, und mit einer Halteplatte (32), die am Ventilblock (12) angebracht ist und die die Magnetventile (14) am Ventilblock (12) hält, wobei die Halteplatte (32) mit ihr einstückige Federelemente (36, 38) aufweist, die an den Magnetventilen (14) angreifen und diese gegen den Ventilblock (12) drücken, dadurch gekennzeichnet, dass in den Ventilblock (12) mindestens ein Drucksensor (44) eingesetzt ist, den ein mit der Halteplatte (32) einstückiges Federelement (45) gegen den Ventilblock (12) drückt.

Pneumatic relay valve

CONNECTION OF A SOLENOID VALVE TO A HOUSING BLOCK

Improvements in and relating to Pneumatic Brakes.

... 12,858. Chapsal, F. J., and Saillot, A. L. E. May 31. [Addition to 12,780/12.] Fluid - pressure.-The accelerator for pneumatic brakes described in the parent Specification is modified for use with differential - pressure brakes of the Wenger or Lipkowski types, or with vacuum brakes of the Clayton type, and is arranged to replace the distributing-valves of these brakes. Fig. 1 shows the application to a brake of the Wenger type. The accelerator is connected to the chamber E<2> at one side of the brake piston by a pipe 43, and with the chamber E' at the other side of the piston by a pipe 44 and a piston valve 48, 49. The parts are shown in the release position, the chamber E<2> being charged from the train-pipe 19 by way of the valve 22, port 24, valve 9, and pipe 43, and the chamber E' by ports 25, 18, past the cup-leather of piston 48, and pipe 44. When the train-pipe pressure is reduced, the diaphragms 5, 6 descend, thus opening the valve 45 to vent the train-pipe into the chamber 4, ...

AIR CONTROL VALVE FOR A PNEUMATIC BRAKE SYSTEM

... 1457398 Tractor-trailer braking systems; valves MIDLAND-ROSS CORP 28 Feb 1975 [11 March 1974] 8499/75 Headings F2F and F2V A control valve 10 for use in a tractor-trailer braking system has a valve body 70 with a first chamber 72 and a second chamber 73 open at one end and communicating with the first chamber at the opposite end, first and second ports 60, 61 communicating with chamber 73 and third and fourth ports 62, 63 communicating with chamber 72; a first plunger 76 and sealing means 81, 89, 91, 93 associated therewith preventing fluid communication between port 62 and chamber 73 when the plunger is in a first position and between port 63 and chamber 73 when in a second position and a second plunger 79 within chamber 73 movable between first and second positions, second sealing means 116 to isolate port 60 from port 61 and chamber 72 and to provide communication between port 61 and chamber 72 when the second plunger is in a first position and third sealing means 119 to prevent communication ...

Solenoid valves

Electromagnetically operated valve unit

Fluid operated braking system

... 938,216. Pneumatic brakes. OVERLAND ANCHOR LOK Inc. March 6, 1962 [March 21, 1961], No. 8655/62. Class 103 (1). In a vehicle braking system including pneumatically operated brakes a mechanically powered alternate brake actuating means is normally held de-activated by pressurized air and is provided with control means to vent the pressurized air from the brake actuating means thereby activating the same to actuate and hold the brakes positively actuated until pressurized air is again admitted to the brake actuating means. A tractor and trailer braking system is shown in Figs. 1A and 1B, respectively, while the brake cylinders 49 and alternate brake actuating means 34 are shown in Fig. 2. A compressor 10 controlled by a governor 46 supplies storage reservoirs 12, 13 from where it passes to the emergency braking system conduits shown in solid black lines. Pressurized air passes via parking valve 17 and pressure check valve 26 to chamber 33, Fig. 2, of the alternately actuating means 34 in ...

Trailer braking system

A brake system for a trailer vehicle with multiple axles. The system includes first and second pneumatic circuits (through reservoirs 3,4) for supplying air pressure to brake devices at the axle wheel ends 33-38. Also included are: a first electronic control unit (ECU) 17 (e.g. part of trailer brake module 6), which controls pressure from the circuits to the wheel ends; and a second ECU 7, which controls first 41, 42 and second 43-46 pressure control valves (PCVs) on each side of the vehicle to output pressure to the wheel ends, e.g. for redundancy in case of pneumatic failure. The module 6 may include a relay emergency anti-compounding valve REV-AC 30, the output of which is connected to spring brakes at the wheel ends for independent spring braking, e.g. in case of electrical fault. The PCVs may each include two 2/2 solenoid valves, one normally closed and one normally open. Between module 6 and the PCVs there may be a selector valve 40 including two or three 3/2 valves, and a secondary ...

Automatic shut-off device for electro-pneumatic braking equipment

... 1,022,942. Electro-pneumatic brake systems. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. May 22, 1964 [May 30, 1963], No. 21211/64. Heading F2F. An arrangement whereby an electro pneumatic valve EVS and a shut-off device D1 co-operate to return to pneumatic control in the event of a failure of the electric supply, comprises a brake pipe CG, a main pipe, a triple valve or distributer, an electromagnetically operated brake release valve, a control reservoir, an auxiliary reservoir, an electropneumatic brake application valve and a shut-off device. Normally the pressure from the brake-pipe CG is operative in the chamber 14 to hold the piston 10 against the spring 8 whereby the valve 7 is kept open and the pressure distributed in the chambers 5, 6 and 12 as well as in chamber 14, the valve 2 being held open and the valve 1 held closed by a solenoid acting on the rod 3. In the event of an electric failure or if power is otherwise cut off, the valve 1 opens and the valve 2 closes. The brake ...

Steering brake device for motor vehicles

... 908,008. Differential braking for steering. DEUTSCHE PERROT-BREMSE G.m.b.H. July 18, 1961 [July 18, 1960], No. 25999/61. Class 79(2). A motor vehicle steering-brake system wherein at least a pair of wheels is hydraulically braked from a common master cylinder, there being pressure piping extending to the wheel brake cylinders, comprises an independent push button valve in each of the pressure lines for selective disconnection of a brake cylinder. As shown, a pressure fluid supply line 4 from a master cylinder is connected to a valve housing 1 which may be attached to an instrument or control panel 3, the housing 1 comprising a crossbore 7 communicating with the pipe 4 and with valve chambers 8 which have outlet bores 15 connected respectively to pipes 5 and 6 leading to the right and left wheel cylinders respectively. Each valve chamber 8 houses a mushroom valve 9 which is urged away from its seating by a spring 14 and has a stem 10 passing through a bush 11 and is provided with a press ...

HYDRAULIC UNIT

Electrohydraulic unit and method for assembling an electrohydraulic unit

Improvements in or relating to means for controlling clutch and brake mechanism of road and like vehicles

... 575,313. Valves. CLAYTON DEWAN DRE CO., Ltd., and EDGE, S. H. Nov. 18, 1940, No. 16613. [Class 135] [Also in Group XXXI] A pneumatic or vacuum control system comprises a reaction valve or valves operated by a single lever or pedal, pressure fluid or vacuum being utilised to react against the applied effort, and serve cylinders adapted respectively to control the clutch and brakes, the clutch being disengaged before the application of the brakes. To steer endless-track vehicles, two hand levers are provided each controlling a clutch and brake at the corresponding side of the vehicle. In the arrangement shown in Fig. 1, a lever 1 actuates a reaction valve 3 adapted to connect a brake cylinder 18 and a clutch cylinder 19 either to the atmosphere at 21 or to a compressed air pipe 14. In the position shown both cylinders are connected to the atmosphere through a valve seat 8 and a port 21, the clutch being engaged and the brakes free. When the lever 1 is actuated, it moves piston 4 to compress ...

Improvements in or relating to a braking device for an apparatus operated by compressed air

... 831,214. Dashpots. REGIE NATIONALE DES USINES RENAULT. March 7, 1957 [March 8, 1956], No. 7672/57. Class 108(3) [Also in Group XXIX] The flow restriction valve 39 for a pneumatic dashpot 33 comprises an elastic element 1 which in its normal position (Fig. 2) permits the flow of air from one side 43 of the dashpot to the other, but when moved by a cam 42 it cuts off the connecting port 13 in the valve body from the output port 12 and permits the air from the port 13 to pass through an orifice 14 of reduced cross-section, thereby producing the dashpot action. The element 1 has a peripheral bead 6 by which it is clamped between a shoulder 16 in the valve body and a recess 17 in a ring 18 which itself is clamped in position by a further ring 22 and a plug 23. The element 1 has a seat 4 which normally engages by the elasticity of the element 1 with a seat 5 on the end of the ring 18. A recess 9 of the element 1 is engageable by a push rod 10 so as to lift the seats 4 and 5 apart and bring a ...

PARKING BRAKE CONTROL VALVE

MODULAR CONTROL VALVE MANIFOLD

Brake mechanism

... 1,035,293. Fluid pressure brakes; valves. BENDIX WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Feb. 28, 1964 [March 6. 1963], No. 8420/64. Headings F2F and F2V. [Also in Division E2] In a fluid pressure safety brake system the brake actuator 30 is of the type disclosed in Specification 955,062. The fluid pressure system also includes two reservoirs 10, 12 and a parking reservoir 24. A control valve 26 normally supplies pressurized fluid from reservoir 24 through conduit 32 and 138 to deactivate the locking means and through a continuation of conduit 32 to a further control valve 106. The fluid acts on the spring- loaded enlarged head 124 of a plunger 122 of the control valve 106 to raise the plunger in its housing bore 120 out of engagement with a spring-loaded valve member 130. With valve member 130 seated an outlet port 110 of the control valve 106, which is connected to the emergency portion 40 of the actuator 30, is vented to the atmosphere through a passage 134 in plunger 122. An inlet port ...

MULTI-CIRCLE COMPRESSED AIR BRAKE, IN PARTICULAR FOR MOTOR VEHICLES

HYDRAULIC SUPPORTER BRAKE MECHANISM

HYDRAULISCHES DREIWEGE-STETIGVENTIL FÜR BLOCKEINBAU

MEHRKREIS-DRUCKLUFTBREMSANLAGE, INSBESONDERE FUER KRAFTFAHRZEUGE

Pneumatic brake for a railway vehicle

Pneumatische Bremse (1) für ein Schienenfahrzeug, wobei bei einem Bremsvorgang mittels pneumatischen Drucks aus einem Bremsluftbehälter (2) Reibbeläge an Reibpartner angepresst werden und wobei der Bremsluftbehälter (2) aus einer Druckluftversorgung (3) gespeist ist, wobei die Füllung und der Abfluss von Druckluft aus dem Bremsluftbehälter (2) über eine Strömungsbegrenzungseinrichtung erfolgt.

Emergency brake device for a railway vehicle

Notbremseinrichtung (1) für ein Schienenfahrzeug mit einer Druckluftbremsanlage, bei welcher eine Bremsung durch Absenken des Luftdrucks in einer Hauptluftleitung (7) bewirkbar ist und welche eine ausschließlich elektrische Anbindung einer Fahrgastnotbremse (2) aufweist.

ELECTRO-PNEUMATIC BRAKE MECHANISM OF A RAIL-MOUNTED VEHICLE

BRAKE CONTROL EQUIPMENT FOR MOTOR VEHICLES.

STRENGTH-STEERED PRESSURE CONTROL VALVE.

MORE HINTERSCHNITTBOHRER.

ELECTRONIC BRAKE SYSTEM, IN PARTICULAR FOR NUTZFATHRZEUGANHÄNGER

ELECTRO-PNEUMATIC DOUBLE REGULATING VALVE WITH A SEALS ARRANGEMENT

SEALS ARRANGEMENT

Two-line pressure airbrake for appendix cars, in particular in motor vehicle courses

SOLENOID VALVE

Foot brake valve apparatus for heavy vehicle braking system

A foot brake valve apparatus is provided for a heavy vehicle braking system. The foot brake valve apparatus comprises a valve body having a first side face and a second side face opposite the first side face. The apparatus further comprises a primary supply pressure port associated with a primary braking circuit and adjoining the first side face, and a primary delivery pressure port associated with the primary braking circuit and adjoining the first side face. The apparatus also comprises a secondary supply pressure port associated with a secondary braking circuit and adjoining the first side face, and a secondary delivery pressure port associated with the secondary braking circuit and adjoining the first side face.

BRAKE CONTROLLER FOR TOWED VEHICLE BRAKING SYSTEM AND METHOD

Abstract A brake controller for a towed vehicle braking system, said brake controller being adapted to be mounted in a towing vehicle for generating a braking control signal to said towed vehicle braking system and said brake controller associated with a remote head mounted in the towing vehicle remote from the brake controller for controlling gain of the braking control signal, said brake controller comprising: an inertial sensor including plural sensor axes for generating sensor data associated with each sensor axis; and a processor for processing said sensor data to sense deceleration of the towing vehicle, whereby said brake controller is adapted to generate the braking control signal to control activation of said brakes of the towed vehicle braking system based on the deceleration of the towing vehicle sensed by the processor and the gain of the braking control signal, and without prescribing a mounting orientation of the brake controller relative to the towing or towed vehicle.

Electromagnetically actuatable valve system and valve device

CONTROL VALVE

ELECTRO-PNEUMATIC BRAKE VALVE

An electro-pneumatic brake valve includes counteracting torque motor which rotate a cam in response to friction brake pressure, dynamic braking effort and/or an electrical control signal. The cam actuates switching elements to apply or release the friction brakes via a pair of solenoid actuated valves which control fluid flow from the valve inlet to the friction brake actuators and from the friction brake actuators to vent ...

BRASS INSERT MOLDED INTO "CHURCH WINDOW" OF SERVICE ACCELERATED RELEASE VALVE GASKET

The present invention provides a gasket for use in a service portion of a brake control valve in a railway braking system. The gasket comprises an elastomeric composition with a predetermined shape. There is a series of bead-like projections formed on the first surface of the gasket for sealing such gasket with a body portion of the valve. A first aperture is disposed in the gasket at a predetermined location for engagement with a projection on the filling piece of the service portion. A brass insert is molded into the elastomeric composition and has a second aperture formed therein. The second aperture is in fluid communication with an auxiliary reservoir of such railway braking system. A third aperture is formed in the gasket in a third predetermined location. A brass insert, which has a first predetermined configuration, is molded into the elastomeric composition of the gasket. The brass insert is disposed in a lower quadrant of the first surface of the gasket and has a fourth aperture ...

CONTROL SYSTEM FOR AUTOMATIC PARKING BRAKE OF RAIL VEHICLE

A control valve (10) for an automatic parking brake having an inlet (20) for coupling to a source a brake pipe pressure, an outlet (22) for coupling to a control inlet of the automatic parking brake and a pilot (24) for coupling to the source of brake pipe pressure. The control valve is moveable between a first position where the inlet is in communication with the outlet and a second position where the inlet and the outlet are isolated from each other in response to a predetermined amount of brake pipe pressure at the pilot. The control valve includes a spring biasing the control valve into the first position.

SYSTEMS AND METHODS FOR VEHICLE BRAKING CONTROL

A vehicle braking system includes a primary system including at least one pneumatic brake pipe control valve, and a secondary back-up system configured to facilitate vehicle braking without human intervention. The secondary back-up system includes a first air reservoir coupled to supply pressurized air to the at least one pneumatic brake pipe control valve, a second air reservoir, a choke adapted to allow airflow at a specified airflow rate, and a solenoid valve adapted to selectively couple and decouple the first air reservoir and the second air reservoir via the choke, according to an energization state of the solenoid valve.

AIR CONTROL VALVE FOR A PNEUMATIC BRAKE SYSTEM

BRAKE CYLINDER MAINTAINING VALVE WITH IMPROVED PRESSURE REGULATION

A brake cylinder maintaining system that combines a brake cylinder maintaining check valve and a quick service limiting valve into a single unit to have lower hysteresis, and thus more precise BCM regulation pressure and a smaller pressure offset. The check valve and quick service valve are coupled to provide a single system having multiple valve seats for selective communication between quick service pressure and brake cylinder pressure on one hand, and between a brake cylinder maintaining pressure and brake cylinder pressure on the other hand.

SPRING BRAKE ACTUATOR WITH A CAGING BOLT BEARING JOINING A PRESSURE PLATE AND ACTUATOR TUBE

A pneumatic brake actuator has a housing and a divider that divides the housing into a spring chamber containing a spring and a pressure chamber. The divider has an opening that receives an end of an actuator tube. A bearing that is positioned within the opening in the divider is joined to both the divider and the actuator tube. A caging bolt has a first end positioned within the actuator tube and extends from the first end through openings in the bearing and housing to a second end positioned outside of the housing. The connection between the bearing, divider and actuator tube contains the spring within the housing in the event that the housing and/or divider fails. The divider can be a piston or a diaphragm and pressure plate. The bearing can be joined to either of the divider and actuator tube with threads and/or by welding.

Application and Release Magnet Valve

Railway Brake Pipe Bracket with Access Ports

Ausgleichvorrichtung an Führerbremsventilen für durchgehende Eisenbahn-Druckluftbremsen

Notbremsanlage für Fahrzeuge.

Einrichtung zur Erhaltung des Druckzustandes im Hilfsbehälter pneumatischer Bremsen beim Betätigen eines Entbremsorganes.

Steuerventil an Einkammer-Druckluftbremsen.

Steuerventil für Druckluftbremsen.

Robinet de commande de frein.

Dispositif pour faire varier l'action des appareils de freinage pneumatiques des véhicules de chemins de fer et autres suivant leur charge.

Bremsleitungsauslassventil bei Zugsicherungsanlagen.

Frein à fluide sous pression.

Dispositif pour faire varier l'action des appareils de freinage pneumatiques des véhicules de chemin de fer et autres suivant leur charge.

Führerbremsventil mit Druckregler für automatische Luftdruck-Personen- und Güterzugsbremsen.

Einrichtung an Steuerventilen von Druckluftbremsen mit Steuerkammer, zur Verhütung des Überladens derselben.

Notbremsventil für Eisenbahn-Druckluftbremsen.

Dispositif de commande pour frein pneumatique à dépression.

Dispositif de commande pour frein pneumatique.

Pressure control valve arrangement having an eccentrically mounted double magnet

A pressure control valve arrangement is described for controlling the fluid pressure in an ABS brake system of a vehicle so that, during a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one assigned brake cylinder can be matched adaptively, a) two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves being provided in the housing of the pressure control valve arrangement, b) the two electro-magnetic control valves having a double magnet with two magnet coils and also magnet armatures cooperating with solenoid valve seats and actuable by current being applied to the magnet coils, c) the housing having at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and also at least one working connection for connecting to the brake cylinder, characterized in that d) a plane of symmetry of the mid-axes of the magnet coils of the double magnet of the electromagnetic control valves is arranged parallel, and offset by the amount of an eccentricity, with respect to a mid-axis of the pressure medium connection.

Traction-slip controlled brake system of a motor vehicle approaching stops

A traction-slip controlled vehicle brake system having a) a service-brake valve, which generates an actuation-dependent pressure at an outlet port; b) a valve device, in a first operating position, establishes a connection from a pressure medium reserve and, in a second operating position, from a 2/2 solenoid valve to a brake actuator; c) the solenoid valve being connected to the outlet port of the service-brake valve and to a first connection of the valve device. The solenoid valve and valve device are controllable by a control device to d) allow the solenoid valve to switch open and the valve device to switch to the first operating position for traction-slip control; e) and a brake pressure generated at a predetermined level based on the pressure medium from the pressure medium supply in the brake actuator; the solenoid valve being switched closed and the valve device to the first operating position.

Railroad control valve

A service portion of a rail control valve includes a body defining a piston passageway, an inshot valve passageway, and a service accelerated release valve passageway. An inshot valve is received by the inshot valve passageway of the body and a service accelerated release valve is received by the service accelerated release valve passageway.

VALVE ASSEMBLY

A valve assembly () having a housing () into which are provided a first port (), a second port () and a third port (), and in which are located a first movable member (), a second movable member () and a third movable member (), the first movable member () being movable between a first position which causes the second movable member () to close the first port () to prevent any substantial flow of fluid through the first port (), whilst the second () and third () ports remain open, a second position which causes the third movable member () to close the third port () to prevent any substantial flow of fluid through the third port (), whilst the first () and second () ports remain open and flow of fluid between the first () and the second () part is permitted, and a third position which causes the second movable member () to close the first port () and the third movable member () to close the third port () to prevent any substantial flow of fluid through either the first port () or the third port (), wherein the second movable member () and the third movable member () are separate such that relative movement between the second movable member () and the third movable member () is permitted. 1. A valve assembly having a housing into which are provided a first port , a second port and a third port , and in which are located a first movable member , a second movable member and a third movable member , the first movable member being movable between a first position which causes the second movable member to close the first port to prevent any substantial flow of fluid through the first port , whilst the second and third ports remain open and flow of fluid between the second and third ports is permitted , a second position which causes the third movable member to close the third port to prevent any substantial flow of fluid through the third port , whilst the first and second ports remain open and flow of fluid between the first and second port is permitted , and a third ...

Compressed-Air Supply Device for Commercial Vehicles

A compressed-air supply device for commercial vehicles is provided. The compressed-air supply device may be connected electrically to an electronic control device that may actuate at least one control valve. The control valve has at least one inlet, one ventilating connection and one outlet. The compressed-air supply device has a control line which is connected to the control valve outlet and may be connected to a control inlet of a compressor and/or an inlet of a regeneration valve, has a supply line via which compressed air may be guided to the control valve inlet, and has a ventilating line connected to the control valve ventilating connection. The control valve may be ventilated via the ventilating line, and is configured such that at a predefined opening pressure in the supply line it pneumatically produces a fluid-conducting connection between the inlet and the outlet such that the control line is ventilated. 1. A compressed-air supply device for commercial vehicles which is electrically connectable to an electronic control device , comprising:at least one control valve actuable by the electronic control device, the control valve having at least one inlet connection, one venting connection and one outlet connection;a control line connected to the control valve outlet connection, the control line being connectable to at least one of a control inlet of a compressor and an inlet of a regeneration valve;a supply line arranged to supply compressed air to the control valve inlet connection;a venting line arranged to vent the control valve from the control valve venting connection;wherein the control valve is configured to provide a fluid-conducting connection between the control valve inlet connection and the control valve outlet connection when a predetermined opening pressure is present in the supply line.2. The compressed-air supply device as claimed in claim 1 , wherein a venting flow cross section in a flow path of venting the control valve is smaller than a ...

Magnet valve for controlling a fluid

A magnet valve configured to control a fluid includes an armature with a base region, a casing region, and a head region. The magnet valve also includes a valve element that is connected to the armature and an armature housing component. A flow path is formed between the armature and the armature housing component. The flow path runs from a lower armature chamber to an upper armature chamber and back to the lower armature chamber. The head region of the armature has a flattened section, and the upper armature chamber is defined between the armature housing component and the flattened section. At least one groove is formed on the casing region of the armature starting from the base region. The at least one groove ends in the casing region before the flattened section of the head region.

Braking fluid control apparatus

A braking fluid control apparatus includes a housing and an electromagnetic valve. The housing includes a fluid passage through which a braking fluid flows, and is formed with an assembling hole which opens to outside of the housing at an open end thereof. The electromagnetic valve includes a cylindrical sleeve inserted in the assembling hole. The sleeve includes a disk-shaped flange part projecting radially outward thereof. The flange part is formed by bending work in a convex shape projecting toward the bottom portion of the assembling hole, and disposed within the assembling hole. The flange part is sandwiched between the bottom portion of the assembling hole and a swaging deformation portion formed by swaging an area in the vicinity of the open end of the assembling hole.

Trailer Control Valve With Integrated Trailer Supply

A trailer control valve for a tractor includes a body defining a supply port and first and second delivery ports. The supply port is configured for fluid communication with a fluid source on the tractor. The first and second delivery ports are configured for fluid communication with glad-hand connectors through which fluid is supplied from the tractor to a trailer for, respectively, releasing a parking brake and applying a service brake. The first delivery port is in fluid communication with the supply port. A relay valve is supported within the body and includes a valve member configured to move between positions preventing and permitting fluid communication between the supply port and the second delivery port. Pressure transducers in the body generate pressure signals indicative of fluid pressure at the delivery ports permitting detection of the presence of a trailer coupled to the tractor. 1. A trailer control valve for a tractor , comprising:a body defining a supply port and first and second delivery ports, the supply port configured for fluid communication with a fluid source on the tractor, the first delivery port in fluid communication with the supply port and configured for fluid communication with a first glad-hand connector through which fluid is supplied from the tractor to a trailer coupled to the tractor for releasing a parking brake on the trailer, the second delivery port configured for fluid communication with a second glad-hand connector through which fluid is supplied from the tractor to the trailer for applying a service brake on the trailer; and,a relay valve supported within the body, the relay valve including a valve member configured to move between a first position preventing fluid communication between the supply port and the second delivery port and a second position permitting fluid communication between the supply port and the second delivery port.2. The trailer control valve of wherein the body includes a first control port configured ...

AIR BRAKE SYSTEM

This disclosure relates to an air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake. The air brake system comprises a front air brake cylinder included in the front air brake, and a rear air brake cylinder included in the rear air brake. A foot valve having a first side and a second side is included. A primary air tank is pneumatically connected with the second side of the foot valve, and a secondary air tank is pneumatically connected with the first side of the foot valve. A rear relay valve is pneumatically connected with second side of the foot valve and is pneumatically connected with the rear brake cylinder. A front relay valve is pneumatically connected with the first side of the foot valve and pneumatically connected with the front brake cylinder. 1. An improvement to an air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake , a front air brake cylinder included in the front air brake; a rear air brake cylinder included in the rear air brake; a foot valve having a first side and a second side , a primary air tank pneumatically connected with the second side of the foot valve , a secondary air tank pneumatically connected with the first side of the foot valve , the improvement comprising:a rear relay valve pneumatically connected with second side of the foot valve and pneumatically connected with the rear brake cylinder; anda front relay valve pneumatically connected with the first side of the foot valve and pneumatically connected with the front brake cylinder.2. An air brake system for a vehicle having a front set of wheels having a front air brake and a rear set of wheels having a rear air brake , the air brake system comprising:a front air brake cylinder included in the front air brake;a rear air brake cylinder included in the rear air brake;a foot valve having a first side and a second side;a ...

VEHICLE BRAKE SYSTEM

A brake control system is provided for a vehicle having steerable front wheels, left and right brake units for braking left and right rear wheels, and a single manually operated brake input device. A main brake valve has a supply port, a return port, an outlet and a valve spool for controlling communication therebetween. The valve spool is coupled to brake input device. A normally open left turn valve controls communication between the outlet and the left brake unit. A normally open right turn valve controls communication between the outlet and the right brake unit. A normally open balance valve controls communication between the left and right brake units. The system includes brake input device sensor, a turn angle sensor and a vehicle speed sensor. A control unit controls the left and right turn valves and the balance valve as a function of signals from the sensors. 1. A brake control system for a vehicle having steerable front wheels , left and right rear wheels , a left brake unit for braking the left rear wheel , a right brake unit for braking the right rear wheel , and a single manually operated brake input device , the brake control system comprising:a main brake valve having a supply port, a return port, an outlet and a valve spool for controlling communication between the supply port, the return port, and the outlet;a link which operatively couples the valve spool to the brake input device;a solenoid operated normally open left turn valve for controlling communication between the outlet and the left brake unit;a solenoid operated normally open right turn valve for controlling communication between the outlet and the right brake unit;a solenoid operated normally open balance valve for controlling communication between the left and right brake units;brake position sensor for sensing a position of the brake input device;a turn angle sensor;a vehicle speed sensor; andan electronic control unit (ECU) connected to the brake position sensor, to the turn angle ...

Hydraulic Block for a Hydraulic Assembly of a Brake Pressure Control System of a Hydraulic Vehicle Brake System

A hydraulic block for a hydraulic assembly of a slip control system of a hydraulic vehicle brake system includes a metal-plastic composite part with a metal part and a further part. The metal part includes sleeve-like brake line ports, sleeve-like valve receptacles, sleeve-like pump receptacles, and pipes as connecting lines. The further part is a plastic part that is injection-molded around the metal part to form the hydraulic block in a cuboid shape.

BRAKING CONTROL DEVICE

The present disclosure comprises a reservoir cutoff valve provided on a pipe and configured to be opened in a non-energization state; a simulator cutoff valve provided on a pipe and configured to be closed in a non-energization state; an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member is being operated is; and a current control circuit that, when the operation determination circuit determines that the brake operation member is not in an operation execution state, supplies a first current to the reservoir cutoff valve, and when the operation determination circuit determines that the brake operation member is in an operation execution state, supplies a second current greater than the first current to the reservoir cutoff valve. 1. A braking control device comprising:a reservoir connected to a fluid pressure chamber configured to supply a brake fluid in response to an operation of a brake operation member;a first flow path between the reservoir and the fluid pressure chamber;a second flow path connected to the first flow path at a connection part;a stroke simulator configured to apply a reactive force pressure to the brake operation member as a brake fluid is supplied thereto from the fluid pressure chamber via the first flow path and the second flow path;a reservoir cutoff valve provided in the first flow path between the reservoir and the connection part, the reservoir cutoff valve configured to be opened in a non-energization state;an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member being operated is; anda current control circuit configured to supply a first current to the reservoir cutoff valve when the operation determination circuit determines the brake operation member is in the operation execution state, and the current control circuit ...

VEHICLE BRAKING DEVICE

A brake ECU automatically pressurizes a servo chamber of a master cylinder, and then determines whether a single system failure has occurred in the master system. When the single system failure is detected, a refresh drive is executed so that a fluid pressure chamber provided to the master cylinder is subjected to a negative pressure to cause a brake fluid to forcibly flow from a reservoir into the fluid pressure chamber via a seal member provided inside of the master cylinder and foreign matters caught by the seal member are thus washed out. The brake ECU again automatically pressurizes the servo chamber, determines whether the single system failure has been resolved, and notifies the occurrence of the single system failure when the single system failure has not been resolved. 1. A vehicle braking device comprising:a master cylinder comprising a main cylinder, a master piston drivably housed in the main cylinder, a fluid pressure chamber whose volume changes in response to movement of the master piston, a communication hole formed in the main cylinder so that a reservoir for reserving a brake fluid communicates with an inside of the main cylinder through the communication hole, a seal member made of an elastic material, the seal member provided between an inner peripheral surface of the main cylinder and an outer peripheral surface of the master piston, and the seal member provided between the communication hole and the fluid pressure chamber;a failure detector configured to detect a failure of a master system comprising the master cylinder; anda negative pressure generation controller that, when the failure is detected by the failure detector, moves the master piston to generate a negative pressure in the fluid pressure chamber.2. The vehicle braking device according to claim 1 , further comprising a servo pressure generator configured to supply a servo pressure for moving the master cylinder in a servo chamber formed in the master cylinder claim 1 , irrespective ...

TRAILER BRAKE PILOT CONTROL CIRCUIT AND METHOD OF CONTROL THEREOF

A braking system of a trailer and work machine includes a pressurized fluid supply, a hydraulic base valve fluidly coupled to the supply, and a pneumatic base valve fluidly coupled to the supply. A proportional control valve is also fluidly coupled to the supply, and it includes an outlet disposed in fluid communication with the inlets of the hydraulic base valve and the pneumatic base valve. The system further includes a hydraulic output configured to be fluidly coupled to a hydraulic braking system of a trailer, and a pneumatic output configured to be fluidly coupled to a pneumatic braking system of a trailer. The hydraulic output is fluidly coupled to the outlet of the hydraulic base valve, and the pneumatic output is fluidly coupled to the outlet of the pneumatic base valve. 1. A braking system of a trailer and work machine , comprising:a pressurized fluid supply;a hydraulic base valve fluidly coupled to the supply, the hydraulic base valve including an inlet and an outlet;a pneumatic base valve fluidly coupled to the supply, the pneumatic base valve including an inlet and an outlet;a proportional control valve fluidly coupled to the supply, the proportional control valve including an outlet disposed in fluid communication with the inlets of the hydraulic base valve and the pneumatic base valve;a hydraulic output configured to be fluidly coupled to a hydraulic braking system of a trailer, the hydraulic output fluidly coupled to the outlet of the hydraulic base valve; anda pneumatic output configured to be fluidly coupled to a pneumatic braking system of a trailer, the pneumatic output fluidly coupled to the outlet of the pneumatic base valve.2. The braking system of claim 1 , further comprising a solenoid valve disposed in fluid communication with the proportional control valve claim 1 , where the solenoid valve is movable between an open position in which the proportional control valve is fluidly coupled to the hydraulic base valve and pneumatic base valve ...

Pneumatic trailer brake circuit with breakaway detection and method thereof

A method of detecting a leak in an air trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a leak control valve having a solenoid, a pneumatic fluid supply, a first brake output, and a second brake output. The method further includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve. The first pressure is detected with the first sensor and the second pressure is detected with the second sensor. The method also includes communicating the detected first pressure and the second pressure to the controller, and comparing a difference between first pressure and the second pressure to a threshold. A leak is detected in the air trailer brake circuit if the difference satisfies the threshold.

DUAL LINE HYDRAULIC TRAILER BRAKE CONTROL CIRCUIT AND METHOD OF CONTROL THEREOF

A method of detecting a leak in a hydraulic trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a control valve having a solenoid, a reduction valve, a hydraulic fluid supply, a first brake output, and a second brake output. The method also includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve to the first brake output. The first pressure is detected by the first sensor and the second pressure is detected by the second sensor, and the detected first and second pressures are communicated to the controller. The difference between the first and second pressures are compared to a threshold, and a leak is detected in the hydraulic trailer brake circuit if the difference satisfies the threshold. 1. A method of detecting a leak in a hydraulic trailer brake circuit of a trailer , comprising:providing a controller, a base valve, a first sensor, a second sensor, a control valve having a solenoid, a reduction valve, a hydraulic fluid supply, a first brake output, and a second brake output;supplying a first pressure to an inlet of the base valve;outputting a second pressure from an outlet of the base valve to the first brake output;detecting the first pressure with the first sensor and the second pressure with the second sensor;communicating the detected first pressure and the second pressure to the controller;comparing a difference between first pressure and the second pressure to a threshold; anddetecting a leak in the air trailer brake circuit if the difference satisfies the threshold.2. The method of claim 1 , further comprising de-energizing the solenoid of the control valve via the controller if the difference satisfies the threshold.3. The method of claim 1 , further comprising actuating the control valve to a closed position if the difference satisfies the threshold.4. The method of claim 1 , further comprising supplying an amount ...

Hydraulic trailer brake circuit for adjustable gain and improved stability

A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.

PRESSURE EQUALIZATION VALVE

A pressure equalization valve arrangement for a rail brake system includes a hold valve and a membrane vent valve each having a control chamber. The hold valve and vent valve are piloted by a respective solenoid valve. A further solenoid valve is connected to the control chamber of the vent valve to allow the pressure across the vent valve membrane to be equalized with the brake cylinder pressure to decrease the pressure difference across the membrane. This results in an improved vent time. 1. A brake valve arrangement for a rail brake system configured to control air flow to brake cylinders , the arrangement comprising:a hold membrane valve; anda vent membrane valve, wherein the hold vale and the vent valve each have a control chamber, wherein the hold membrane valve and vent membrane valve are piloted by respective solenoid valves; anda further solenoid valve connected to the control chamber of the vent membrane valve to enable equalization of the pressure across the vent valve membrane with the brake cylinder pressure to decrease a pressure difference across the vent valve membrane.2. The brake valve of claim 1 , wherein the further solenoid is in fluid communication with the outlet of the hold membrane valve.3. The brake valve of claim 1 , wherein the further solenoid is in fluid communication with an inlet of the vent solenoid.4. The brake valve of claim 1 , wherein the further solenoid valve receives the brake cylinder pressure.5. The brake valve of claim 1 , wherein claim 1 , to release the brakes in use claim 1 , the hold valve membrane is held closed by applying the supply pressure to the control chamber of the hold membrane valve and by energising the hold solenoid valve claim 1 , and wherein the brake pressure in a brake cylinder is vented to atmosphere by exhausting the vent membrane valve control chamber by energising the vent solenoid valve.6. The brake valve of claim 1 , wherein claim 1 , in use claim 1 , to hold the pressure in the brake cylinder ...

BRAKE CONTROL APPARATUS AND METHOD OF CONTROLLING BRAKE APPARATUS

Provided is a brake control apparatus mounted in a vehicle with a plurality of wheels, the brake control apparatus including: a actuator configured to apply a braking torque to the plurality of wheels; and a controller configured to control the actuator to apply a first braking torque to a first wheel of the plurality of wheels, based on a spin of the first wheel being greater than or equal to a target spin, and to control the actuator to apply a second braking torque to the plurality of wheels based on a displacement of a brake pedal of the vehicle while applying the first braking torque to the first wheel, wherein the controller stepwise or linearly increases a braking torque applied to a second wheel of the plurality of wheels up to the second braking torque. 1. A brake control apparatus mounted in a vehicle with a plurality of wheels , the brake control apparatus comprising:a actuator configured to apply a braking torque to the plurality of wheels; and control the actuator to apply a first braking torque to a first wheel of the plurality of wheels, based on a spin of the first wheel being greater than or equal to a target spin, and', 'control the actuator to apply a second braking torque to the plurality of wheels based on a displacement of a brake pedal of the vehicle while applying the first braking torque to the first wheel,, 'a controller configured towherein the controller is configured to control the actuator to stepwise or linearly increase a braking torque applied to a second wheel of the plurality of wheels up to the second braking torque.2. The brake control apparatus of claim 1 , wherein the actuator comprises:a piston pump configured to supply hydraulic pressure to a plurality of wheel cylinders corresponding to each of the plurality of wheels,a drive motor configured to drive the piston pump,a flow path extended to the plurality of wheel cylinders from the piston pump, anda plurality of valves located on the flow path, andwherein the controller is ...

ELECTROMAGNETIC VALVE DEVICE, USE THEREOF, AND SYSTEM

An electromagnetic valve device having a fluid inlet port (), which is formed in a valve casing (), for a fluid to be switched, in particular pneumatic fluid, a working port (), which is realized in the valve casing, for the fluid and locking component(s) (), which are moveably guided in the valve casing along an axial direction and which are realized for interacting with a valve seat () formed in the valve casing and opening a fluid flow path between the fluid inlet port and the working port and which are moveably realized via fluid switched by means of electromagnetic positioning means (). 1110. An electromagnetic valve having a fluid inlet port () , which is formed in a valve casing () , for fluid to be switched ,{'b': '2', 'a working port (), which is formed in the valve casing, for the fluid,'}{'b': 14', '26', '32, 'and locking means (), which are movably guided in the valve casing along an axial direction and are formed for interacting with a valve seat () formed in the valve casing and opening a fluid flow path between the fluid inlet port and the working port and which are realized so as to be movable via a fluid switched by means of electromagnetic positioning means (),'}{'b': '36', 'an axially directed drive force of the drive means counteracting a return force acting on the locking means via spring means (),'}wherein{'b': '26', 'the valve seat () is formed axially bilaterally such that a first opening area is exposed in a first axial displacement position of the locking means relative to the valve casing and a second opening area, which is arranged opposite to the first opening area, is exposed in an opposing second axial displacement position,'}{'b': '50', 'figref': {'@idref': 'DRAWINGS', 'FIG. 1'}, 'and the module-like valve casing being used and received in a valve outer casing () having external ports, which align with the fluid inlet port as well as the working port, such that when the positioning means are not activated, the return force closes the ...

METHOD FOR THE TEMPERATURE-DEPENDENT CONTROL OF A PRESSURE CONTROL VALVE AND A CONTROL DEVICE THEREFORE

A method for the temperature-dependent control of a pressure control valve of a vehicle comprising an inlet valve and an outlet valve includes detecting a predefined pressure difference to be controlled by the pressure control valve, determining a present valve body temperature, wherein, for this purpose, a temperature change proceeding from a starting temperature is considered depending on at least one detected valve body influencing variable, determining, depending on the pressure difference to be controlled and on the determined present valve body temperature, at least one of a temperature-adjusted pulse duration for the inlet valve and a temperature-adjusted pulse duration for the outlet valve, and controlling at least one of the inlet valve and the outlet valve of the pressure control valve via the particular temperature-adjusted pulse duration in order to effectuate the detected pressure difference at the determined valve body temperature. 1. A method for the temperature-dependent control of a pressure control valve of a vehicle comprising an inlet valve and an outlet valve , the method comprising:detecting a pressure difference to be controlled by the pressure control valve;determining a present valve body temperature, wherein, for this purpose, a temperature change proceeding from a starting temperature is considered depending on at least one detected valve body influencing variable;determining, depending on the pressure difference to be controlled and on the determined present valve body temperature, at least one of a temperature-adjusted pulse duration for the inlet valve and a temperature-adjusted pulse duration for the outlet valve; andcontrolling at least one of the inlet valve and the outlet valve of the pressure control valve via the particular temperature-adjusted pulse duration in order to effectuate the detected pressure difference at the determined valve body temperature.2. The method as claimed in claim 1 , wherein in order to determine at least ...

SYSTEMS AND METHODS FOR PRESSURE CONTROL MIXED MODE FOR BRAKING OPERATION

A brake control system of the present disclosure calibrates a servo valve and calculates a calibrated transfer function associated with the servo valve for precise braking in open-loop mode. The calibration steps may include determining i) whether an aircraft is on a ground surface, ii) whether the aircraft is not moving relative to the ground surface, and iii) whether braking is applied to a brake system of the aircraft. The brake control unit may calibrate the servo valve in response to the brake control unit determining that i) the aircraft is on the ground surface, ii) the aircraft is not moving relative to the ground surface, and iii) the braking is not applied to the brake system of the aircraft. The calibration process includes sending two or more test currents to the servo valve, and determining braking pressures associated with those test currents to calculate the transfer function. 1. A brake control system , comprising:a servo valve configured to receive a hydraulic fluid and provide the hydraulic fluid to apply a braking force to a wheel via a hydraulic line; anda brake control unit in electronic communication with the servo valve; determine whether an aircraft is on a ground surface and not moving relative to the ground surface;', 'determine whether braking is applied to a brake system of the aircraft; and', 'calibrate the servo valve in response to the brake control unit determining that i) the aircraft is on the ground surface, ii) the aircraft is not moving relative to the ground surface, and iii) the braking is not applied to the brake system of the aircraft., 'wherein the brake control unit is configured to2. The brake control system of claim 1 , wherein the calibrating comprises:sending, by the brake control unit, a first electric current to the servo valve; anddetermining, by the brake control unit, a first pressure applied to the brake system via the servo valve, in response to the first electric current being sent to the servo valve.3. The ...

SYSTEM AND METHOD FOR CONTROLLING BRAKING PRESSURES AT WHEELS ON A VEHICLE

A controller controls respective braking pressures at wheels on a vehicle. The controller includes a processor electrically communicating with each of a plurality of switching valves, which controls braking pressures at respective wheels. The processor, during a braking event having a brake demand above a braking demand threshold, controls each of the switching valves to maintain braking pressures at the respective wheels based on at least one additional criteria. 1. A controller controlling respective braking pressures at wheels on a vehicle , the controller comprising:a processor electrically communicating with each of a plurality of switching valves, which control braking pressures at respective wheels, the processor, during a braking event having a brake demand above a braking demand threshold, controlling each of the switching valves to maintain braking pressures at the respective wheels based on at least one additional criteria including a relatively uniform coefficient of friction of a surface on which the vehicle is traveling, and if the surface on which the vehicle is traveling has the relatively uniform coefficient of friction, the processor controlling the switching valves to maintain the braking pressures at the respective wheels only after a delay after an onset of the braking pressures at the respective wheels.2. The controller as set forth in claim 1 , wherein:the at least one additional criteria further includes a weight on at least one of the wheels; andthe processor controls the switching valves to maintain the braking pressures at the respective wheels if the weight on the at least one of the wheels is above a predetermined weight threshold.3. The controller as set forth in claim 2 , wherein:the processor determines the surface has the relatively uniform coefficient of friction based on respective wheel spin velocities of at least two of the wheels being within a predetermined spin velocity threshold.4. The controller as set forth in claim 3 , ...

SYSTEM AND METHOD FOR CONTROLLING BRAKING OF AUTONOMOUS MACHINE

A braking system for controlling braking of a machine is disclosed. The braking system includes a first set of sensors to detect a first set of information indicative of operational characteristics of an engine and a transmission system. The braking system includes a second set of sensors to detect a second set of information indicative of a load of the machine and a profile of a work surface. The braking system includes a receiving unit to receive a third set of information indicative of a predefined route of the machine. The braking system includes a controller configured to control an actuator for opening and closing of an exhaust port for engine braking, and to control a valve for achieving a predetermined gear-ratio during the engine braking, based on the first set of information, the second set of information, and the third set of information. 1. A braking system for controlling braking of a machine , the braking system comprising:a first set of sensors configured to detect a first set of information, the first set of information indicating operational characteristics of an engine and a transmission system of the machine;a second set of sensors configured to detect a second set of information, the second set of information indicating a load of the machine and a profile of a work surface, while the machine is traveling on a predefined route;a receiving unit configured to receive a third set of information, the third set of information indicating the predefined route of the machine; and control an actuator disposed in the engine, the actuator configured to open and close an exhaust port for engine braking; and', 'control a valve disposed in the transmission system, the valve configured to achieve a predetermined gear-ratio during the engine braking,', 'wherein the actuator and the valve are controlled based on the first set of information, the second set of information, and the third set of information., 'a controller in communication with the first set of ...

SYSTEM AND METHOD FOR CONTROLLING RESPECTIVE BRAKING PRESSURES AT WHEELS ON A VEHICLE

A controller controls respective braking pressures at wheels on a vehicle. The controller includes a processor electrically communicating with a first switching valve, which controls a first of the braking pressure at a first of the wheels, and a second switching valve, which controls a second of the braking pressures at a second of the wheels. The processor, during a braking control event, controls the switching valve associated with the higher of the braking pressures to maintain the higher braking pressure while switching a state of the switching valve associated with the lower of the braking pressures to increase the lower braking pressure. 1. A controller controlling respective braking pressures at wheels on a vehicle , the controller comprising:a processor electrically communicating with a first switching valve, which controls a first of the braking pressure at a first of the wheels, and a second switching valve, which controls a second of the braking pressures at a second of the wheels, the processor, during a braking control event, controlling the switching valve associated with the higher of the braking pressures to maintain the higher braking pressure while switching a state of the switching valve associated with the lower of the braking pressures to increase the lower braking pressure.2. The controller as set forth in claim 1 , wherein the first switching valve is associated with the lower braking pressure and the second switching valve is associated with the higher braking pressure:the processor transmits a signal to set the second switching valve to a hold state if the processor determines to increase the braking pressure at the first wheel during the braking control event.3. The controller as set forth in claim 2 , wherein:the first wheel and the second wheel are included in a common brake circuit.4. The controller as set forth in claim 2 , wherein:the first switching valve is in one of a hold state and a release state while the second switching valve ...

BRAKING SYSTEM WITH TWO PRESSURE SOURCES, AND METHOD FOR OPERATING A BRAKING SYSTEM WITH TWO PRESSURE SOURCES

A braking system including four hydraulically actuatable wheel brakes. A normally closed outlet valve is assigned to each wheel brake and a normally open inlet valve is assigned to each wheel brake. Two pressure supply devices are provided for active pressure build-up in the wheel brakes. A first and a second brake circuit are hydraulically configured with two wheel brakes respectively, wherein in each brake circuit a respective pressure supply device is hydraulically connected to two wheel brakes. A first and a second control and regulating unit are provided, wherein the first control and regulating unit electrically controls the pressure supply device of the first brake circuit, and wherein the second control and regulating unit hydraulically controls the pressure supply device of the second brake circuit, and the two control and regulating units are connected together via a data interface. 1. A braking system comprising four hydraulically actuatable wheel brakes , wherein a normally closed outlet valve is assigned to each wheel brake and a normally open inlet valve is assigned to each wheel brake , wherein two pressure supply devices are provided for active pressure build-up in the wheel brakes , wherein a first and a second brake circuit are hydraulically configured with two wheel brakes respectively , wherein in each brake circuit a respective pressure supply device is hydraulically connected to two wheel brakes ,wherein a first and a second control and regulating unit are provided, wherein the first control and regulating unit electrically controls the pressure supply device of the first brake circuit, and wherein the second control and regulating unit electrically controls the pressure supply device of the second brake circuit, and wherein the two control and regulating units are connected together via a data interface.2. The braking system as claimed in claim 1 , wherein the two brake circuits are connected in hydraulically isolatable fashion to two normally ...

INTEGRATED TRAILER CONTROL MODULE WITH EXTERNAL ELECTRO-PNEUMATIC PARKING BRAKE UNIT

An electropneumatic trailer control module () for an electronically controllable pneumatic brake system () for a vehicle combination () with a tractor vehicle () and a trailer vehicle (), has an electronic control unit (ECU), a pneumatic reservoir input (), a trailer control valve unit () with electropneumatic valves (RV, IV, OV), a trailer brake pressure port (), and a trailer supply pressure port (). The electronic control unit (ECU) has a parking brake signal input () for receiving an electronic brake representation signal (SB, SB, SB) for an immobilizing brake () of the tractor vehicle () and is configured to, on the basis of the brake representation signal (SB, SB, SB), switch at least one of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit () in order to output a brake pressure. 115205005025041. An electropneumatic trailer control module () for an electronically controllable pneumatic brake system () for a vehicle combination () with a tractor vehicle () and a trailer vehicle () , the electropneumatic trailer control module () comprising:an electronic control unit (ECU),{'b': 11', '525, 'a pneumatic reservoir input (), which is connectable to a compressed-air reservoir (),'}{'b': '65', 'a trailer control valve unit () with one or more electropneumatic valves (RV, IV, OV),'}{'b': 22', '21', '200', '1', '2', '3', '6', '532', '532', '502, 'i': a', 'b, 'a trailer brake pressure port (), and a trailer supply pressure port (), characterized in that the electronic control unit (ECU) has a parking brake signal input () for receiving an electronic brake representation signal (SB, SB, SB) which represents an actuation of an immobilizing brake (, , ) of the tractor vehicle (), wherein'}{'b': 65', '1', '2', '3', '22, 'the electronic control unit (ECU) is configured to switch at least one valve (IV) of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit () based on the brake representation signal (SB, ...

BRAKE HYDRAULIC DEVICE FOR VEHICLE

Provided is a brake hydraulic device for a vehicle, including: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve; an electromagnetic coil; a pressure sensor; and a housing attached to the outer surface of the base body. The housing includes a peripheral wall part and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side. A plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part. A hierarchy region where the bus bars on the coil side and the bus bars on the sensor side are positioned in a hierarchy state with each other in the front-rear direction is provided. 1. A brake hydraulic device for a vehicle , comprising:a base body having a hydraulic pressure path for brake fluid formed therein;an electromagnetic valve which opens and closes the hydraulic pressure path;an electromagnetic coil which drives the electromagnetic valve;a pressure sensor which detects intensity of the hydraulic pressure of the brake fluid in the hydraulic pressure path; anda housing attached to an outer surface of the base body and having a housing chamber for accommodating the electromagnetic valve, the electromagnetic coil, and the pressure sensor,wherein the housing includes a peripheral wall part having openings formed on a front side and a rear side thereof, and an intermediate wall part partitioning a space inside the peripheral wall part into a front side and a rear side,wherein the housing chamber is provided on the rear side of the intermediate wall part,wherein a plurality of bus bars on the coil side to be electrically connected to the electromagnetic coil, and a plurality of bus bars on the sensor side to be electrically connected to the pressure sensor are embedded in the intermediate wall part ...

BRAKING INSTALLATION FOR A RAILWAY TRAIN INCLUDING A PLURALITY OF WAGONS FOR TRANSPORTING GOODS

The braking installation () comprises a pneumatic brake pipe (BP) which extends along the train, and wherein the pressure is controlled by a braking control apparatus (BCA) in the locomotive (L), an electrical power supply and communication line (EL) which extends along the train, and which is coupled to an electronic control unit (ECU) in the locomotive (L); and in each wagon (W) or in each group of wagons (W) associated with each other, an electronic module (EM) coupled to the electrical line (EL) through power supply and communication interface devices (I, I), and further connected to an electro-pneumatic control assembly (EPC) designed for driving pneumatic brake valve means (ELV). The interface means (I, I) comprise electronic processing and control means (MC, MC) and a first transceiver means (TC) adapted to allow an exchange of information and/or data with the electronic control unit (ECU) of the locomotive (L) through the electrical line (EL), for controlling the braking of the wagon (W) or group of wagons (W). In each wagon (W) or group of wagons (W) a local communication network or bus (b) is positioned between the interface means (I, I) and the electronic module (EM), and a second transceiver (TC) is also provided, this transceiver being coupled to the electrical line (EL) and operating on a frequency band which is different from, possibly overlapping but broader than, that of the first transceiver means (TC). The processing and control means (MC, MC) are designed for driving the second transceiver (TC) when the first transceiver (TC) is active and/or inactive, and for communicating to the electronic control unit (ECU) of the locomotive (L) information derived from the signals supplied by sensors (T Tn) to the electronic module (EM) and transferred by the latter to the interface devices (I, I) through the local communication network or bus (b). 212. Braking installation according to claim 1 , wherein said transceiver means (TC) and the additional ...

Traction-Slip Controlled Brake System of a Motor Vehicle Approaching Stops

A control device for controlling a brake system of a vehicle comprises a first output for controlling a first solenoid valve; a second output for controlling a valve device; an input for receiving a requested brake pressure; and a port for receiving messages on a databus. The control device is capable of receiving an automatic brake request on the databus; determining a desired brake pressure in response to the automatic brake request; receiving a requested brake pressure in response to a driver actuating a service brake valve; comparing the desired brake pressure to the requested brake pressure; transmitting a control signal to close the first solenoid valve and transmitting a control signal to change the valve device to a first operating position in response to the requested brake pressure being less than the desired brake pressure in order to provide pressure to at least one brake actuator. 1. A method for controlling a brake system of a vehicle comprising:determining a desired brake pressure in response to an automatic brake request;determining a requested brake pressure in response to a driver actuating a service brake valve;comparing the desired brake pressure to the requested brake pressure; andcontrolling a first solenoid valve and a valve device in response to the requested brake pressure being less than the desired brake pressure.2. The method as in claim 1 , wherein controlling the valve device comprises connecting a pressure medium reserve to at least one brake actuator through the valve device in response to the requested brake pressure being less than the desired brake pressure.3. The method as in claim 1 , wherein controlling a first solenoid valve comprises transmitting a control signal to change the first solenoid valve from an open state to a closed state and wherein controlling the valve device comprises transmitting a control signal to change the valve device from a second operating position to a first operating position.4. The method as in claim ...

COIL ASSEMBLY AND BRAKE CONTROL DEVICE

A coil assembly includes: a bobbin; a coil including a winding around the bobbin; a yoke attached to the bobbin; and a connection terminal electrically connected to the winding. The connection terminal is a press-fit terminal that includes a terminal portion projecting perpendicularly from the bobbin outward in an axial direction of the bobbin. The yoke is arranged on a side of the bobbin that is opposite to the terminal portion in an axial direction of the terminal portion, and supports the press-fit terminal. 1. A coil assembly comprising:a bobbin;a coil including a winding around the bobbin;a yoke attached to the bobbin; and{'b': '1', 'a connection terminal electrically connected to the winding, p wherein the connection terminal is a press-fit terminal that includes a terminal portion projecting perpendicularly from the bobbin outward in an axial direction of the bobbin, and'}wherein the yoke is arranged on a side of the bobbin that is opposite to the terminal portion in an axial direction of the terminal portion, and supports the press-fit terminal.2. The coil assembly according to claim 1 ,wherein the yoke supports the press-fit terminal via an insulator.3. The coil assembly according to claim 2 ,wherein the bobbin includes a resin portion formed of a resin, and the insulator is the resin portion.4. The coil assembly according to claim 3 ,wherein the resin portion covers a portion of the yoke that supports the press-fit terminal.5. A brake control device that includes the coil assembly according to claim 1 , the brake control device comprising:a base body in which a fluid path is formed;a solenoid valve which is attached to one surface of the base body and on which the coil assembly is mounted;a housing fixed to the one surface of the base body, the housing covering the solenoid valve and the coil assembly; anda control board housed in the housing, the control board controlling an operation of the solenoid valve,wherein the terminal portion is press-fitted into ...

ELECTRICAL COMPONENT ASSEMBLY AND VEHICULAR BRAKE FLUID PRESSURE CONTROL DEVICE

An electrical component assembly suitably prevents electrical components from coming off, while adopting a simple structure of connection by a connection terminal to a control board. The electrical component assembly includes a housing in which the electrical components are assembled, and the electrical components and the housing are fixed to a surface of a base body. The electrical component includes a connection terminal to be press-contacted into a through hole of a substrate of the housing. The electrical component is provided with an electrical component adhesion margin facing said surface of the base body, so as to be fixed to the base body by an adhesive interposed between the base body and the electrical component adhesion margin. 1. An electrical component assembly comprising:an electrical component; anda housing in which the electrical component is assembled,wherein the electrical component and the housing are fixed to a surface of a base body, the electrical component includes a connection terminal to be press-contacted into a throughhole of a control board provided in the housing, andthe electrical component is provided with an electrical component adhesion margin facing said surface of the base body, so as to be fixed to the base body by an adhesive interposed between the base body and the electrical component adhesion margin.2. The electrical component assembly as claimed in claim 1 , wherein the housing includes a housing adhesion margin facing said surface of the base body claim 1 , so as to be adhered to the base body via the housing adhesion margin.3. The electrical component assembly as claimed in claim 1 , whereinthe direction of the connection terminal being inserted into the throughhole is the same as that of the electrical component being assembled to the housing,the electrical component is provided on the outer surface thereof, perpendicular to the direction of said assembling, with a protruding rib to be press-fitted into a groove of the ...

Electropneumatic brake control module for utility vehicles with redundancy pressure connector

An electropneumatic brake control module ( 1 ) for utility vehicles ( 100 ) includes a supply port ( 2 ) for connecting a compressed air supply ( 3 ); a first axle channel port ( 4 ); a pneumatically controlled inlet/outlet valve unit ( 10 ) for outputting a first braking pressure (PB 1 ) at the first axle channel port ( 4 ); and an electropneumatic pilot control unit ( 8 ) for outputting at least one first control pressure (P 1 ) at the inlet/outlet valve unit ( 10 ). The brake control module ( 1 ) further includes a redundancy pressure port ( 6 ) for receiving a redundancy pressure (PR) and a redundancy valve unit ( 12 ) connected to the redundancy pressure port ( 6 ) for outputting a redundancy braking pressure (PBR) at the first axle channel port ( 4 ) in the event that the electropneumatic pilot control unit ( 8 ) has a fault.

SOLENOID VALVE

A solenoid valve () comprises a coil core (), a yoke (), a valve chamber (), an inlet armature () upstream of an inlet () of the valve chamber (), an outlet armature () upstream of a first outlet () of the valve chamber (), and second outlet () at the valve chamber (), wherein the inlet armature () and outlet armature () can move and the inlet () and first outlet () lie opposite one another. In the solenoid valve (), the inlet () and the second outlet () are connected to one another by way of an equalizing system having a non-return valve (), wherein the non-return valve () is open towards the inlet (). 1. A solenoid valve comprising a coil core , a yoke , a valve chamber , an inlet armature upstream of an inlet of the valve chamber , an outlet armature upstream of a first outlet of the valve chamber , and a second outlet on the valve chamber , wherein the inlet armature and the outlet armature can move and the inlet and first outlet lie opposite one another , wherein the inlet and second outlet are connected to one another by way of an equalizing system having a non-return valve , and wherein the non-return valve is open towards the inlet.2. The solenoid valve as claimed in claim 1 , wherein the inlet armature is embodied in a tapered manner at its end that is facing the outlet armature claim 1 , and wherein the outlet armature comprises an end having an inner taper that corresponds to said end of the inlet armature.3. The solenoid valve as claimed in claim 2 , further comprising at least one magnetic coil and yoke arms that are arranged in a transverse manner with respect to an axis of a coil core in such a manner that an imaginary projection line of one of the yoke arms intersects the outlet armature in the case of a closed first outlet in the region of a tapered surface.4. The solenoid valve as claimed in claim 1 , further comprising precisely one magnetic coil so as to move the inlet armature and the outlet armature.5. The solenoid valve as claimed in claim 1 , ...

REDUNDANT MOTION CONTROL FOR A VEHICLE WITH A REDUNDANT BRAKING ARRANGEMENT

A control arrangement for a vehicle motion system including a braking function, comprising motion actuators with one or more brake actuators pertaining to the braking function, a first vehicle motion management controller (VMM) and a second vehicle motion management controller (VMM), forming a redundant assembly to control the braking function, wherein, in riding conditions, the first vehicle motion management controller controls the brake actuators with a current nominal expected braking performance, while the second vehicle motion management controller (VMM) is in a waiting-to-operate mode, the control arrangement comprising a hot swap functionality in which the second vehicle motion management controller (VMM) is configured to take over control of the brake actuators from the first vehicle motion management controller, with the current nominal expected braking performance, in a short time period (SWT) less than one second, preferably less than 0.5 second, preferably less than 0.3 second, and associated control method. 2. The brake control device of claim 1 , wherein the first and second local electronic control unit are configured to control claim 1 , in a substantially simultaneous fashion claim 1 , the first and second inlet solenoid valves and to control respectively claim 1 , in a substantially simultaneous fashion claim 1 , the first and second outlet solenoid valves.3. The brake control device of claim 1 , wherein first and second inlet solenoid valves exhibit different pneumatic characteristics and/or first and second outlet solenoid valves exhibit different pneumatic characteristics.4. The brake control device of claim 1 , wherein the inlet and outlet solenoid valves are normally closed solenoid valves.5. The brake control device of claim 1 , wherein the first and second local electronic control units are supplied from independent electrical power supplies.6. The brake control device of claim 1 , wherein the first and second local electronic control units ...

DUAL PRESSURE CONTROL FOR A ROTOR BRAKE ACTUATOR FOR VERTICAL LIFT AIRCRAFT

In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure. 1. A rotor blade rotation control master cylinder assembly for vertical lift aircraft , the assembly comprising:a master cylinder configured to be activated by movement of a rotor blade rotation control handle of a vertical lift aircraft to move pressurized hydraulic fluid through one or more conduits;a rotor brake actuator connected to the master cylinder and configured to engage a rotor brake of the vertical lift aircraft in response to receiving hydraulic fluid at a hydraulic fluid pressure from the master cylinder;a low pressure relief valve fluidly connected in parallel to the master cylinder and the rotor brake actuator, and configured to transmit pressurized hydraulic fluid away from the rotor brake actuator in response to the hydraulic fluid pressure exceeding a first pressure threshold of the low pressure relief valve;a high pressure relief valve connected in parallel to the master cylinder, the rotor brake actuator and the low pressure relief valve, and configured to transmit pressurized hydraulic fluid away from the rotor brake actuator in response to the hydraulic fluid pressure exceeding a second pressure threshold of the high pressure relief valve, the second pressure threshold higher than the first pressure threshold, wherein the low pressure relief ...

PNEUMATIC CONFIGURATION MODULE FOR ELECTRONIC AIR BRAKE SYSTEM

A modular EAB system that reduces the number of individualized modules but provides the desired functionality using a configuration module that is coupled to a plurality of brake system control modules and has a receptacle interface configured to engage a series of modular sections that can be selected from a variety of options to perform dedicated air brake functions. The dedicated air brake functions included comprise brake pipe cutout, equalizing reservoir backup, brake pipe emergency, automatic flow calibration, dead engine regulator, dynamic brake interlock, emergency limiting valve regulation, dynamic brake interlock and emergency limiting valve regulation, 20 pipe back up, and brake cylinder cutout. 1. An electronic air brake system , comprising:a plurality of brake system control modules; anda configuration module coupled to the plurality of brake system control modules and having a receptacle interface configured to engage a series of sections performing a series of corresponding dedicated air brake functions.2. The electronic air brake system of claim 1 , wherein the series of dedicated functions comprise at least two selected from the group of dedicated functions consisting of brake pipe cutout claim 1 , equalizing reservoir backup claim 1 , brake pipe emergency claim 1 , automatic flow calibration claim 1 , dead engine regulator claim 1 , dynamic brake interlock claim 1 , emergency limiting valve regulation claim 1 , dynamic brake interlock and emergency limiting valve regulation claim 1 , 20 pipe back up claim 1 , and brake cylinder cutout.3. The electronic air brake system of claim 2 , wherein the receptacle interface that couples to the section corresponding with brake pipe cutout comprises a brake pipe relay output pressure port claim 2 , a brake pipe feedback pressure port claim 2 , a brake pipe vent valve pressure port claim 2 , a brake pipe pressure port claim 2 , and a brake pipe cutout pilot pressure port.4. The electronic air brake system of ...

HYDRAULIC BRAKE APPARATUS AND RELATED METHODS

Example hydraulic brake apparatus and related methods are described herein. An example apparatus disclosed herein includes a parking brake valve having an inlet fluidly coupled to a pump and an outlet fluidly coupled to a brake. The parking brake valve is operable between an open state and a closed state to allow or block fluid through the parking brake valve. To lock the fluid in the brake in a parking brake mode, the parking brake valve is moved to the closed state by pumping fluid into the inlet. 1. An apparatus comprising: a first passageway between a first inlet and an outlet, the first inlet to be in fluid communication with a pump, the outlet to be fluidly coupled to a vehicle brake;', 'a second passageway between a second inlet and the first passageway, the second inlet to be in fluid communication with a reservoir; and', 'a shuttle having a first spool and a second spool, the second spool disposed in the second passageway and blocking fluid flow between first passageway and the second passageway, the shuttle movable between an open position in which the first spool allows fluid flow between the first inlet and the outlet and a closed position in which the first spool blocks fluid flow between the first inlet and the outlet, the shuttle having an orifice across the second spool fluidly connecting the first passageway to the second passageway., 'a parking brake valve including2. The apparatus of further including a check valve to allow fluid flow from the first inlet to the outlet when the shuttle is in the closed position.3. The apparatus of claim 2 , wherein the parking brake valve further includes a third passageway between the first inlet and the outlet claim 2 , the check valve disposed in the third passageway.4. The apparatus of further including a fluid level sensor to detect a level of fluid in the reservoir.5. The apparatus of further including the pump claim 1 , wherein the pump is a bi-directional gear pump.6. The apparatus of claim 5 , wherein the ...

ELECTRONICALLY CONTROLLED PNEUMATIC (ECP) OVERLAY CONTROL VALVE

An electronically controlled pneumatic (ECP) overlay control valve can selective switch between a conventional pneumatic mode and an ECP mode. In ECP mode, the overlay control valve shunts the brake cylinder pressure of the pneumatic control valve which allows a relay valve to build or exhaust pressure in the brake cylinder in response to an electronically controlled apply/release circuit. In conventional pneumatic mode, the overlay control valve disconnects the relay valve and allows a conventional pneumatic control valve to control the pressurization and exhausting of the brake cylinder. 1. An electronically controlled pneumatic overlay for a pneumatic control valve having a brake cylinder pressure outlet , comprising:a relay valve having a first port coupled to a source of reservoir pressure, a second port for providing a brake cylinder pressure output, and an exhaust, wherein the relay valve is movable between a first position where the second port is connected to the exhaust, a second position where the first port, the second port, and the exhaust are isolated from each other, and a third position where the first port is connected to the second port so that the source of reservoir pressure provides the brake cylinder pressure output; anda pilot valve coupled to the relay valve for receiving the brake cylinder pressure output from the second port of the relay valve, wherein the pilot valve is moveable to selectively couple the brake cylinder pressure output to the brake cylinder pressure outlet of the pneumatic control valve.2. The electronically controlled pneumatic overlay of claim 1 , further comprising a solenoid valve that is moveable in response to an electrical signal to selectively connect a source of brake pipe pressure to the pilot valve.3. The electronically controlled pneumatic overlay of claim 2 , further comprising an apply/release circuit coupled to a relay pilot of the relay valve to selectively move the relay valve between the first claim 2 , ...

Method for Operating an Electronically Controllable Brake System

An electronically controllable braking system includes a hydraulic brake-pressure generator which generates the brake pressures for the wheel brakes. In the hydraulic connection to the brake-pressure generator, a valve arrangement has been assigned to each wheel brake in order to adjust the brake pressures demanded for the wheel brakes in the multiplex mode, for the purpose of operating the braking system. A method has the following steps: establishing for which of the wheel brakes the adjusting of the brake pressure demanded for it has priority in a current multiplex cycle; generating the brake pressure demanded for the wheel brake that has been set to priority; opening the valve arrangement that has been assigned to the wheel brake that has been set to priority; and closing the valve arrangements that have been assigned to the wheel brakes that have not been set to priority. 110-. (canceled)11. A method for operating an electronically controllable braking system for a motor vehicle that includes a hydraulic brake-pressure generator that generates the brake pressures for wheel brakes of the vehicle , wherein in the hydraulic connection to the brake-pressure generator , a valve arrangement has been assigned to each wheel brake in order to adjust the brake pressures demanded for the wheel brakes in multiplex mode , the method comprising the steps of:(a) establishing for which of the wheel brakes the adjusting of the brake pressure demanded for it in a current multiplex cycle has priority;(b) generating the brake pressure demanded for the wheel brake that has been set to priority;(c) opening the valve arrangement that has been assigned to the wheel brake that has been set to priority; and(d) closing the valve arrangements that have been assigned to the wheel brakes that have not been set to priority.12. The method defined in claim 11 , characterized by the step of opening the valve arrangement that has been assigned to a wheel brake that has not been set to priority ...

System and method for braking a vehicle

A valve includes at least one of an electrical port adapted to receive an electronic control signal and a pneumatic control port adapted to receive a pneumatic control signal. The valve also includes a pneumatic delivery port. The pneumatic delivery port is adapted to transmit a pneumatic fluid, based on the at least one of the received electronic control signal and the received pneumatic control signal, from a second independent source to control i) a second associated service brake and ii) delivery of the pneumatic fluid from a first independent source to control a first associated service brake.

Hydraulic trailer brake circuit for adjustable gain and improved stability

A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.

HYDRAULIC BLOCK OF ELECTRONIC BRAKING DEVICE FOR VEHICLE

A hydraulic block of an electronic braking device for a vehicle includes a first input port and a second input port configured to receive a brake fluid from a main braking system, at least one oil chamber connected to one input port of the first input port and the second input port, a first output port and a second output port configured to discharge the brake fluid to a plurality of wheel brake apparatuses, a first inlet line configured to connect the first input port and the first output port to each other, and a second inlet line configured to connect the second input port and the second output port to each other, a first outlet line bifurcated from the first inlet line, a second outlet line bifurcated from the second inlet line, and a valve mounting unit mounted with a plurality of valves.

Vehicle braking calibration system

A vehicle braking calibration system and related method includes a valve fluidly coupled with a vehicle braking system of a vehicle. The valve is configured to move between an open position and a closed position to control an amount of a fluid that is directed out of the braking system. A sensor detects one or more characteristics of the fluid that is directed out of the braking system. A controller determines a state of the braking system based on the one or more characteristics of the fluid.

BRAKE SYSTEM AND MOTOR VEHICLE

A brake system for a motor vehicle, wherein the brake system is divided into two blocks, wherein a separate electric pressure generator is arranged in each block, and a motor vehicle having such a brake system. 1. A brake system for a motor vehicle comprising:a first block;a second block separate from the first block;a brake master cylinder arranged in the first block;a first electric pressure generator arranged in the first block;a second electric pressure generator arranged in the second block;a plurality of inlet valves;a first group of wheel ports arranged on the first block and are connected to the brake master cylinder and the first electric pressure generator via a respective inlet valve; anda second group of wheel ports arranged on the second block and are connected to the second electric pressure generator via a respective inlet valve.2. The brake system as claimed in claim 1 , wherein the wheel ports of the second group are connected to the brake master cylinder via the respective inlet valves and a connecting line connecting the blocks.3. The brake system as claimed in claim 1 , wherein an additional brake cylinder is arranged in the second block claim 1 , the additional brake cylinder has a piston which divides the additional brake cylinder into a first pressure chamber and a second pressure chamber claim 1 , wherein the first pressure chamber is connected to the brake master cylinder via a connecting line connecting the blocks claim 1 , wherein the wheel ports of the second group are connected to the second pressure chamber via the respective inlet valves.4. The brake system as claimed in claim 1 ,wherein the first electric pressure generator is connected via a common sequence valve to inlet valves connected to the first electric pressure generator.5. The brake system as claimed in claim 1 ,wherein the second electric pressure generator is connected via a common sequence valve to inlet valves connected to the second electric pressure generator.6. The ...

HYDRAULIC BRAKE SYSTEM

A hydraulic brake system, including: a brake operation member; a brake device; a master cylinder; a communication switching valve; a low-pressure-source shut-off valve; a high-pressure source; a regulator; a pressure adjuster; and a controller, wherein, when a pressurizing state of the master cylinder is switched from a first pressurizing state to a second pressurizing state after initiation of an operation on the brake operation member, the controller executes a pressurizing-state switching control in which switching of a state of the low-pressure-source shut-off valve from an open state to a closed state and switching of a state of the communication switching valve from a closed state to an open state are carried out after a pressure-regulating state of the regulator has been switched from a first pressure-regulating state to a second pressure-regulating state by controlling the pressure adjuster to increase a second pilot pressure while the first pressurizing state is maintained. 1. A hydraulic brake system , comprising:a brake operation member to be operated by a driver;a brake device provided for a wheel and configured to generate a braking force having a magnitude in accordance with a pressure of a working fluid supplied thereto;a master cylinder including (A-1) a housing including a partition portion which partitions an interior of the housing into two fluid chambers and which has an opening, (A-2) an input piston disposed in the housing so as to be located rearward of the partition portion and connected to the brake operation member so as to be moved forward by an operation of the brake operation member, (A-3) a pressurizing piston having a main body portion which is disposed in the housing so as to be located forward of the partition portion and which has a flange formed at a rear end thereof, (A-4) an inter-piston chamber defined between the input piston and the pressurizing piston utilizing the opening of the partition portion, (A-5) a pressurizing ...

ELECTRIC BRAKE SYSTEM AND OPERATING METHOD THEREOF

Disclosed herein are an electric brake system and an operating method thereof. The electric bake system includes a master cylinder discharging pressure medium according to a displacement of a brake pedal, a simulator providing a sense of pedal to a driver, a hydraulic supplier generating hydraulic pressure by operating a hydraulic piston in response to an electrical signal output by corresponding to the displacement of the brake pedal, and a hydraulic control unit controlling hydraulic pressure of the pressure medium supplied to each wheel cylinder. The electric brake system performs a normal operation mode having a low pressure mode and a high pressure mode, an abnormal operation mode and an inspection mode. 1. An electric brake system comprising:a hydraulic supplier configured to generate hydraulic pressure by operating a hydraulic piston by an electrical signal, which is output corresponding to a displacement of a brake pedal, and provided with a first pressure chamber provided on one side of the hydraulic piston movably accommodated in a cylinder block and a second pressure chamber provided on the other side of the hydraulic piston; anda hydraulic control unit provided with a first hydraulic circuit configured to control hydraulic pressure transmitted to two wheel cylinders, and a second hydraulic circuit configured to control hydraulic pressure transmitted to other two wheel cylinders,wherein the hydraulic control unit comprises a first hydraulic flow path communicated with the first pressure chamber, a second hydraulic flow path diverged from the first hydraulic flow path, a third hydraulic flow path diverged from the first hydraulic flow path and then connected to the second hydraulic circuit, a fourth hydraulic flow path communicated with the second pressure chamber and connected to the first hydraulic circuit, a fifth hydraulic flow path configured to connect the second hydraulic flow path to the first hydraulic circuit and the fourth hydraulic flow path, ...

ELECTRIC BRAKE SYSTEM AND OPERATING METHOD THEREOF

Disclosed herein are an electric brake system and an operating method thereof. The electric brake system includes a master cylinder to discharge a pressurized medium in accordance with displacement of a brake pedal, a simulation device to provide a driver with a pedal feeling, a hydraulic pressure supply device to generate a hydraulic pressure by operating a hydraulic piston in accordance with an electrical signal output in response to the displacement of the brake pedal, and a hydraulic control unit to control a hydraulic pressure of the pressurized medium supplied to each wheel cylinder. The electric brake system may perform a normal mode, an abnormal mode, and an inspection mode. 1. An electric brake system comprising:a hydraulic pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston by an electrical signal output in response to displacement of a brake pedal and comprising a first pressure chamber formed at one side of the hydraulic piston movably accommodated in a cylinder block and a second pressure chamber formed at the other side of the hydraulic piston; anda hydraulic control unit comprising a first hydraulic circuit configured to control a hydraulic pressure transmitted to two wheel cylinders and a second hydraulic circuit configured to control a hydraulic pressure transmitted to the other two wheel cylinders,wherein the hydraulic control unit comprises a first hydraulic flow path communicating with the first pressure chamber, second and third hydraulic flow paths branched out from the first hydraulic flow path and respectively connected to the first and second hydraulic circuits, a fourth hydraulic flow path communicating with the second pressure chamber, fifth and sixth hydraulic flow paths branched out from the fourth hydraulic flow path and respectively connected to the first and second hydraulic circuits, and a seventh hydraulic flow path connecting the first hydraulic flow path with the third hydraulic flow ...

SOLENOID VALVE FOR BRAKE SYSTEM

A solenoid valve for brake system includes a valve housing installed in a modulator block, and having an oil flow path; a valve seat installed in the inside of the valve housing, and forming an orifice; an armature configured to move up and down by a magnet core in the valve housing, and to open or close the orifice; a sleeve coupled with the valve housing, and accommodating the armature therein; a restoring spring configured to provide an elastic restoring force to the armature to close the orifice normally; and a damper member interposed between the magnet core and the armature. 1. A solenoid valve for brake system comprising:a valve housing installed in a modulator block, and having an oil flow path;a valve seat installed in the inside of the valve housing, and forming an orifice;an armature configured to move up and down by a magnet core in the valve housing, and to open or close the orifice;a sleeve coupled with the valve housing, and accommodating the armature therein;a restoring spring configured to provide an elastic restoring force to the armature to close the orifice normally; anda damper member interposed between the magnet core and the armature.2. The solenoid valve for brake system according to claim 1 , wherein the damper member is in the shape of a ring claim 1 , anda dent portion on which the damper member is rested is formed at a top edge of the armature.3. The solenoid valve for brake system according to claim 1 , wherein a protrusion is formed in the shape of a half sphere on one surface of the damper member facing the magnet core.4. The solenoid valve for brake system according to claim 1 , wherein a protrusion is formed in the shape of a tetrahedron on one surface of the damper member facing the magnet core.5. The solenoid valve for brake system according to claim 1 , wherein the damper member is made of polyetherether ketone (PEEK). This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Applications No. 10-2017- ...

SIMULATOR VALVE AND ELECTRONIC BRAKE SYSTEM USING THE SAME

A simulator valve and an electronic brake system using the same are disclosed. The electronic brake system includes a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal, a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal, a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder, an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device, and a simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed. 1. An electronic brake system comprising:a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal;a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal;a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder;an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device; anda simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed.2. The electronic brake system according to claim 1 , wherein the unidirectional flow passage is formed by a lip seal provided in the simulator valve.3. The electronic brake system according to claim 1 , wherein the simulator valve includes:a sleeve, an upper part of which is coupled to a ...

BRAKE FLUID PRESSURE CONTROL UNIT

A brake fluid pressure control unit for a vehicle comprises: a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system, which individually allow communication with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel respectively, and also containing a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor. A first hole included in the internal channel for the first system and a second hole included in the internal channel for the second system can selectively be connected to the detected hydraulic pressure inlet hole by machining such that the depth of either the first hole or the second hole is made greater than the other. 18-. (canceled)9. A brake fluid pressure control unit for a vehicle , the unit comprising: a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system by which incorporated pumps and corresponding external pressurizing sources are allowed to individually communicate with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel , respectively , via corresponding pressure increase valves , and also containing a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor , wherein the internal channel for the first system and the internal channel for the second system can selectively be connected to the detected hydraulic pressure inlet hole by machining such that the depth of either one of first and second holes composing the corresponding internal channels is made greater than the other , wherein the housing has , in one end face thereof , pressure increase valve accommodating holes , pressure reduction valve accommodating holes , and a pressure sensor accommodating hole , and has , in both side faces thereof , two opposite pump accommodating holes , wherein the housing also has ...

VALVE ASSEMBLY

A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber. A second movable member has a first valve part and a second valve part and is movable to engage the first valve part with a corresponding inlet valve part to substantially prevent flow of fluid into the main chamber via an inlet port. The first movable member is provided with an exhaust valve part and is movable to engage the second valve part of the second movable member to substantially prevent flow of pressurised fluid out of the main chamber via an exhaust port. A support part is secured relative to the housing, there being a first seal between the second movable member and the support part and a second seal between the support part and the first movable member. 1. A valve assembly including a housing and a first movable member which divides the housing into a control chamber and a main chamber , the housing being provided with an inlet port , a delivery port and an exhaust port which connect the main chamber with the exterior of the housing , the valve assembly further including a second movable member which has a first valve part and a second valve part and which is movable parallel to an axis of the valve assembly to engage the first valve part with a corresponding inlet valve part secured relative to the housing , engagement of the first valve part with the inlet valve part substantially preventing flow of fluid into the main chamber via the inlet port , the first movable member being provided with an exhaust valve part and movable so that the exhaust valve part engages with the second valve part of the second movable member , engagement of the exhaust valve part with the second valve part substantially preventing flow of pressurised fluid out of the main chamber via the exhaust port , characterised in that the valve assembly is further provided with a support part , there being a first seal between the second movable member ...

Pressure Control Valve Arrangement Having an Eccentrically Mounted Double Magnet

A pressure control valve arrangement for controlling fluid pressure in a brake system of a vehicle includes two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves. The two electromagnetic control valves have a double magnet with two magnet coils and magnet armatures and are actuatable by current being applied to the magnet coils. The housing has at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and at least one connection for connecting to a brake cylinder. A plane of symmetry of the mid-axes of the magnet coils of the double magnet is arranged in parallel and offset by the amount of an eccentricity, with respect to a mid-axis of the pressure medium connection. 1. A pressure control valve for a brake system comprising:a housing; the housing having a service brake pressure connection having a mid-axis;a first diaphragm valve in the housing;a second diaphragm valve in the housing;a first electromagnetic valve in the housing having a first magnetic coil;a second electromagnetic valve in the housing having a second magnetic coil; the first magnetic coil and the second magnetic coil having a coil plane of symmetry parallel to the mid-axis of the service brake pressure connection; wherein the coil plane of symmetry is offset by an eccentricity value with respect to the mid axis of the service brake pressure connection.2. The pressure control valve of claim 1 , the housing further comprising a mounting bore having a mounting bore mid-axis claim 1 , wherein the mounting bore mid-axis is perpendicular to and offset by the eccentricity value from the coil plane of symmetry.3. The pressure control valve of claim 1 , wherein the eccentricity value is greater than about one millimeter.4. The pressure control valve of claim 1 , further comprising a first ...

CHECK VALVE

Provided is a check valve installed in a bore of a modulator block having an inlet path and an outlet path to control a flow of oil in one direction, the check valve including: a valve housing provided with a path hole passing through at a central portion thereof to have an upper end and a lower end thereof open to communicate with the inlet path and the outlet path, and a flange portion protruding from a circumference of an outer surface of the valve housing such that the valve housing is fixed to the bore; a spring retainer coupled to one of the open upper and lower ends of the valve housing which is adjacent to the outlet path, and having an outlet port communicating with the outlet path; a plunger movably installed in the path hole while being elastically supported by a spring supported on the spring retainer, and configured to open or close the path hole according to an up and down movement of the plunger; and a lip seal having a lip portion interposed between the plunger and the valve housing to prevent oil from flowing backward toward the inlet path from the outlet path. 1. A check valve installed in a bore of a modulator block having an inlet path and an outlet path to control a flow of oil in one direction , the check valve comprising:a valve housing provided with a path hole passing through at a central portion thereof to have an upper end and a lower end thereof open to communicate with the inlet path and the outlet path, and a flange portion protruding from a circumference of an outer surface of the valve housing such that the valve housing is fixed to the bore;a spring retainer coupled to one of the open upper and lower ends of the valve housing which is adjacent to the outlet path, and having an outlet port communicating with the outlet path;a plunger movably installed in the path hole while being elastically supported by a spring supported on the spring retainer, and configured to open or close the path hole according to an up and down movement of the ...

Hydraulic System

A hydraulic system for an electric working vehicle or hybrid working vehicle of the kind having an electric source of power and an alternative source of power, the hydraulic system comprising: one or more hydraulically actuated devices; and a hydraulic pump configured to supply hydraulic fluid to the one or more hydraulically actuated devices; wherein the hydraulic pump is configured to operate in a low output state when a flow of hydraulic fluid is not required by the one or more hydraulically actuated devices; and wherein the hydraulic system is configured to use hydraulic fluid supplied by the hydraulic pump in the low output state for one or more auxiliary functions of the hydraulic system. 1. A hydraulic system for an electric working vehicle or hybrid working vehicle of the kind having an electric source of power and an alternative source of power , the hydraulic system comprising:one or more hydraulically actuated devices; anda hydraulic pump configured to supply hydraulic fluid to the one or more hydraulically actuated devices;wherein the hydraulic pump is configured to operate in a low output state when a flow of hydraulic fluid is not required by the one or more hydraulically actuated devices; andwherein the hydraulic system is configured to use hydraulic fluid supplied by the hydraulic pump in the low output state for one or more auxiliary functions of the hydraulic system.2. A hydraulic system according to claim 1 , wherein the hydraulic pump is configured to operate in a higher output state when a flow of hydraulic fluid is required by one or more of the hydraulically actuated devices claim 1 , and wherein the output of the hydraulic pump in the higher output state is the lesser of: the flow rate of hydraulic fluid required by the one or more hydraulically actuated devices; and the maximum output flow rate of the hydraulic pump.3. A hydraulic system according to claim 1 , wherein one of the one or more hydraulically actuated devices is a hydraulic power ...

FAIL-SAFE VALVE UNIT, ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM, METHOD FOR OPERATING A BRAKE SYSTEM

A fail-safety valve unit is for a failure braking function of a pneumatic braking system for a vehicle. The fail-safety valve unit has a first and a second failure brake valve configured as monostable valves, and a main line which pneumatically connects a main port, which provides a first pressure, and a failure port. The first and second failure brake valves are connected pneumatically in series in the main line. The first and the second failure brake valves are controllable by different control units. The failure brake valves are open in an open position when not actuated such that the first pressure prevailing at the main port is provided as a failure brake pressure at the failure port such that, in a fault situation, in an electrical failure, and/or in a diagnostic situation, a failure braking operation is triggered via provision of the failure brake pressure at the failure port. 1. A fail-safety valve unit for a failure braking function of an electronically controllable pneumatic braking system for a vehicle , wherein the braking system has a first control unit and a second control unit which can at least one of be supplied with power independently of one another and at least partially replace one another in terms of a function , the fail-safety valve unit comprising:a first failure brake valve configured as a monostable valve;a second failure brake valve configured as a monostable valve;a valve main line pneumatically connecting a main port configured to provide a first pressure and a failure brake port;said first failure brake valve and said second failure brake valve being connected pneumatically in series in said valve main line;said first failure brake valve being configured to be controllable by the first control unit and said second failure brake valve being configured to be controllable by the second control unit; and,said first failure brake valve and said second failure brake valve being open in an open position when not actuated such that the first ...

Emergency Brake Device for a Rail Vehicle

An emergency brake device for a rail vehicle includes a compressed-air-brake system, wherein a braking process can be initiated by lowering the air pressure in a main air conduit and which includes an exclusively electric connection to a passenger emergency brake. 13.-. (canceled)4. An emergency brake device for a rail vehicle with a compressed air brake facility , in which braking is causable by lowering air pressure in a main air line , the emergency brake device comprising:at least one passenger emergency brake comprising a manually actuatable passenger emergency brake handle, which acts on a first electrical opening contact and a first closing contact;a bistable, electromagnetically actuatable compressed air valve which is configured to vent the main air line into open air and which comprises an opening magnetic drive and a closing magnetic drive;an opening relay comprising a second electrical opening contact and a second closing contact;a closing relay comprising a third electrical opening contact and a third closing contact, inputs of the first electrical opening contact and the first closing contact being connected to a supply voltage, an output of the first electrical opening contact being guided to a first electrical drive of the opening relay and an output of the first closing contact being guided to a second electrical drive of the closing relay;wherein inputs of the second electrical opening contact and the second closing contact of the opening relay are connected to the supply voltage;wherein an output of the second electrical closing contact of the opening relay is guided to an input of the third electrical opening contact of the closing relay;wherein an input of the third closing contact of the closing relay is connected to the supply voltage;wherein an output of the third electrical opening contact of the closing relay is guided to the closing magnetic drive of the bistable, electromagnetically actuatable compressed air valve; andwherein both the ...

Hydraulic Braking System for a Vehicle and Corresponding Operating Method

A hydraulic braking system for a vehicle includes a master brake cylinder, a hydraulic unit and a plurality of wheel brakes, the hydraulic unit including at least one brake circuit for brake pressure modulation in the wheel brakes. A bistable solenoid valve is associated with at least one wheel brake, which valve is looped into the corresponding fluid channel, immediately upstream of the associated wheel brake, and in a de-energized open position enables brake pressure modulation in the associated wheel brake, and in a de-energized closed position seals a current brake pressure in the associated wheel brake, wherein a hydraulic force brought about by the sealed-in brake pressure acts in a seat-opening manner in the corresponding bistable solenoid valve. 1. A hydraulic brake system for a vehicle , comprising:a brake master cylinder;a plurality of wheel brakes; anda hydraulic unit comprising at least one brake circuit configured to modulate brake pressure in the wheel brakes,a bistable solenoid valve assigned to at least one wheel brake of the plurality of wheel brakes, the bistable solenoid valve looped into a corresponding fluid duct directly upstream of the associated wheel brake and, in a currentless open position, the bistable solenoid valve enables the brake pressure modulation in the associated wheel brake and, in a currentless closed position, the bistable solenoid valve encloses a current brake pressure in the associated wheel brake, a hydraulic force which is brought about by way of the enclosed brake pressure having a seat-opening effect in the bistable solenoid valve.2. The hydraulic brake system as claimed in claim 1 , wherein the bistable solenoid valve has a positive pressure function which opens the bistable solenoid valve in the currentless closed position and brings about a pressure equalization if the current brake pressure which is enclosed in the corresponding wheel brake exceeds a predefined first threshold value.3. The hydraulic brake system as ...

REVERSE MODULATION VALVE ASSEMBLY INCLUDING DEADBAND STATE

A valve assembly is provided. The valve assembly includes a valve body defining a bore. The valve assembly further includes a pull rod disposed in the bore and defining a bolt cavity. The pull rod is moveable between a first pull rod position and a second pull rod position. The valve assembly further includes a bolt disposed in the bolt cavity and moveable with respect to the pull rod between a first bolt position and a second bolt position. The valve assembly further includes a spool disposed in the bore. The spool is operatively coupled to the pull rod to move between an energized position and a neutral position. 1. A valve assembly , comprising:a valve body defining a bore;a pull rod disposed in the bore and defining a bolt cavity, the pull rod moveable between a first pull rod position and a second pull rod position;a bolt disposed in the bolt cavity and moveable with respect to the pull rod between a first bolt position and a second bolt position; anda spool disposed in the bore, the spool operatively coupled to the pull rod to move between an energized position and a neutral position.2. The valve assembly of claim 1 , wherein the pull rod comprises a nut claim 1 , the bolt has a bolt shoulder spaced from the nut claim 1 , and a return spring is disposed between the nut and the bolt shoulder with the return spring exhibiting a return spring force on the bolt to bias the bolt toward the first bolt position.3. The valve assembly of further comprising a biasing spring exhibiting a biasing spring force on the pull rod to bias the pull rod toward the first pull rod position claim 2 , wherein the bolt is configured to move to the second bolt position prior to the pull rod moving to the second pull rod position due to a ratio of the return spring force and the biasing spring force.4. The valve assembly of claim 2 , wherein the nut defines a hole having a hole diameter claim 2 , the bolt extends therethrough and is moveable with respect to the nut.5. The valve assembly ...

Parking Brake Controller and Method to Maintain a Trailer Air Supply

A controller for a parking brake system for a commercial vehicle is disclosed. The controller receives a signal indicative of a request to park a tractor, a signal indicative of a request to supply air to a trailer and a signal indicative of a vehicle operating condition. The controller transmits a control signal to a tractor parking brake device and a trailer air supply device in order to park the tractor and maintain the air supply to the trailer to suspend the parking of the trailer in response to the signals. 1. A controller for a parking brake system for a commercial vehicle comprising:a first input for receiving a signal indicative of a request to park a tractor;a second input for receiving a signal indicative of a request to supply air to a trailer;a first output for transmitting a tractor park control signal;a second output for transmitting a trailer supply control signal; and transmitting a trailer supply control signal to maintain the trailer air supply in response to the signal indicative of the request to supply air to the trailer being received prior to the signal indicative of a request to park the tractor; and', 'transmitting a tractor park control signal in response to the signal indicative of a request to park the tractor., 'control logic, the control logic capable of'}2. The controller as in claim 1 , further comprising: a third input for receiving a signal indicative of a vehicle operating condition; wherein the control logic is further capable of transmitting the trailer supply control signal to maintain the air supply to the trailer in response to the signal indicative of the vehicle operating condition.3. The controller as in claim 2 , wherein the control logic is further capable of: recording the signal indicative of a request to park a tractor; the signal indicative of a request to supply air to a trailer and the signal indicative of the vehicle operating condition meeting a predetermined condition.4. The controller as in claim 1 , further ...

VEHICLE BRAKING SYSTEM

A braking system for a vehicle including front and rear wheels having wheel brakes includes a fluid displacement mechanism for supplying brake fluid to at least one of the wheel brakes. The fluid displacement mechanism includes a piston having a first position prior to braking and a second position for applying braking. A fluid accumulator is in fluid communication with the fluid displacement mechanism and stores brake fluid. A valve is in fluid communication with the fluid displacement mechanism and the accumulator and is configured to be closed while the piston moves from the second position towards the first position to prevent depletion of the accumulator. 1. A braking system for a vehicle including front and rear wheels having wheel brakes , comprising:a fluid displacement mechanism for supplying brake fluid to at least one of the wheel brakes and including a piston having a first position prior to applying braking and a second position for applying braking;a fluid accumulator in fluid communication with the double acting piston assembly and storing brake fluid at atmospheric pressure; anda valve in fluid communication with the fluid displacement mechanism and the accumulator and configured to be closed while the piston moves from the second position towards the first position to prevent depletion of the accumulator.2. The braking system of claim 1 , wherein the valve comprises a bypass valve fluidly connected to the fluid displacement mechanism claim 1 , one of the wheel brakes claim 1 , and the accumulator.3. The braking system of claim 1 , further comprising a relief valve claim 1 , wherein the valve is provided in and closes a reverse flow path from the accumulator claim 1 , through the relief valve claim 1 , through the valve claim 1 , and back to the double acting piston assembly.4. The braking system of claim 3 , wherein the relief valve and the valve are fluidly connected in parallel with one another.5. The braking system of claim 1 , wherein the valve ...

VACUUM BRAKE BOOSTER VACUUM ENHANCER

A vacuum enhancer having four apertures, one of which is open to the atmosphere, wherein a piston selectively restricts fluid flow through an ejector based on a pressure differential between a vacuum chamber within the vacuum booster and true atmospheric pressure. 1. A brake booster vacuum enhancer comprising:{'b': 1', '2', '3', '4, 'a housing defining an aperture- connectable to a booster, an aperture- connectable to an intake manifold, an aperture- connectable to an intake air-duct, and an aperture- open to the atmosphere;'}{'b': 1', '2, 'a check-valve disposed between aperture- and aperture-;'}{'b': 2', '3, 'an ejector disposed between aperture- and aperture-; and'}{'b': 3', '4', '1', '4, 'a piston disposed between aperture- and aperture- configured to selectively restrict fluid flow through the ejector based on pressure differential between aperture- and aperture-.'}2344. The vacuum enhancer of further comprising a piston spring disposed between aperture- and aperture- and in contact with the piston to bias the piston toward aperture-.314. The vacuum enhancer of wherein the pressure differential between aperture- and aperature- is the difference between the atmosphere and a vacuum in the booster claim 2 , and the piston spring has a spring force selected to selectively restrict fluid flow through the ejector based on a predetermined vacuum level in the booster.434. The vacuum enhancer of further comprising at least one O-ring disposed around the piston to restrict fluid flow between aperture- and aperture-.5. A vacuum enhancer for a brake booster comprising:an ejector passage capable of enhancing a vacuum in the booster via a fluid connection from an intake air-duct to an intake manifold; anda piston assembly having a first surface open to atmosphere and a second surface in fluid communication with the booster to selectively restrict fluid flow through the ejector passage at a predetermined pressure differential between the first and second surfaces.6. The ...

HYDRAULIC BRAKING DEVICE

The present invention pertains to a hydraulic braking device which is provided with: a housing; a pump disposed within the housing; a motor that drives the pump; a plurality of solenoid valves disposed within the housing; WC ports that are provided to the housing and connected to wheel cylinders; and flow channels provided within the housing to connect between the pump, the solenoid valves and the WC ports, and in which the motor and the solenoid valves are controlled such that fluid pressure is generated in the wheel cylinders. The hydraulic braking device is further provided with a Helmholtz damper that is disposed within the housing to be connected to the flow channels and reduces pulses generated by the driving of the pump. 1. A hydraulic braking device comprising: a housing; a pump disposed in the housing; a motor for driving the pump; a plurality of solenoid valves disposed in the housing; a wheel cylinder port provided in the housing and connected to a wheel cylinder; and a flow channel provided in the housing to connect the pump , the plurality of solenoid valves , and the wheel cylinder port ,the motor and the plurality of solenoid valves being controlled to generate fluid pressure in the wheel cylinder,the hydraulic braking device comprising:a Helmholtz type damper disposed in the housing and connected to the flow channel to reduce pulsation generated by driving of the pump using a principle of Helmholtz resonance.2. The hydraulic braking device according to claim 1 , further comprising:a master cylinder port provided in the housing and connected to a master cylinder, and a reservoir disposed in the housing,whereinthe flow channel includes a main flow channel that connects the wheel cylinder port and the master cylinder port, a pressure decreasing flow channel that connects the wheel cylinder port and the reservoir, and a discharge flow channel that connects a discharge valve of the pump and a connecting portion on the main flow channel;the plurality of ...

Method for Controlling a Pneumatic Brake System and a Pneumatic Brake System for a Vehicle

The application discloses a method for controlling a pneumatic brake system of a vehicle. The method includes the step of modulating a pilot-control brake pressure by means of an electropneumatic pilot-control valve in venting phases and bleeding phases. The method also includes the step of feeding in the pilot-control pressure via a pilot-control line for outputting a brake pressure to wheel brakes of the vehicle. 1. A method for controlling a pneumatic brake system of a vehicle , said method including the steps of:modulating a pilot-control brake pressure by means of an electropneumatic pilot-control valve in venting phases and bleeding phases; and{'b': '1', 'feeding in the pilot-control pressure via a pilot-control line for outputting a brake pressure to wheel brakes of the vehicle ();'}wherein the pilot-control valve is modulated from a bled state in alternating venting phases and bleeding phases in order to automatically modulate a median pilot-control pressure level, in such a way that the pilot-control pressure is increased in the venting phases, and decreased in the bleeding phases.2. The method as claimed in claim 1 , wherein the pilot-control pressure is fed to at least one check valve claim 1 , via the pilot-control line claim 1 , in order to output the brake pressure from the check valve to the wheel brakes of the vehicle.3. The method as claimed in claim 2 , wherein the pilot-control pressure which is outputted by the pilot-control valve is subsequently outputted as a fed-through pilot-control pressure to the at least one check valve via a select-high valve and/or a relay valve.4. The method as claimed in claim 2 , wherein the check valve is set to the following operating phases by means of brake signals claim 2 , in order to set the brake pressure:the open position for increasing the pressure or reducing the pressure via the pilot-control line; andthe closed position for maintaining the pressure, and the bleeding position for decreasing the pressure.5. ...

METHOD FOR OPERATING AN ELECTROPNEUMATIC PARKING BRAKE MODULE, ELECTROPNEUMATIC PARKING BRAKE MODULE, ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM, VEHICLE

The disclosure relates to a method for operating an electropneumatic parking brake module for an electronically controllable pneumatic brake system for a vehicle, in particular a commercial vehicle, having a supply port for receiving a supply pressure, at least one parking brake port for the connection of at least one parking brake cylinder, a main valve assembly which receives the supply pressure and is configured to output a spring brake pressure at the parking brake port in dependence on a control pressure, and a pilot valve assembly which receives the supply pressure and is to provide the control pressure, wherein the pilot valve assembly has a bistable valve which can be switched between a first air admission position and a second air release position, and a control unit for providing first and second switch signals to the pilot valve assembly. 1. A method for operating an electropneumatic parking brake module for an electronically controllable pneumatic brake system for a vehicle having a supply port for receiving a supply pressure and a parking brake port for a connection of at least one parking brake cylinder , the vehicle further having a main valve assembly configured to receive the supply pressure and being configured to output a spring brake pressure at the parking brake port in dependence upon a control pressure , the vehicle further having a pilot valve assembly configured to receive the supply pressure and to provide the control pressure , wherein the pilot valve assembly has a bistable valve which can be switched between a first air admission position and a second air release position , the vehicle having a control unit configured to provide a first switch signal and a second switch signal to the pilot valve assembly , the pilot valve assembly having a monostable holding valve pneumatically connected in series with the bistable valve and arranged in a control line of the main valve assembly , wherein the holding valve is normally open in an open ...

HYDRAULIC BRAKING DEVICE

Provided is a hydraulic braking device wherein the heat of a driving coil can be absorbed by a base body, and the heat radiation performance is excellent. The hydraulic braking device having a base body that includes therein a fluid passage for brake fluid, includes: a solenoid valve disposed on one surface of the base body; and a driving coil attached around an axis of the solenoid valve, wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil. A lower surface of the driving coil is in contact with the one surface of the base body, and a clearance is formed between the outer circumferential surface of the driving coil and the wall surface. 1. A hydraulic braking device having a base body that includes therein a fluid passage for brake fluid , comprising:a solenoid valve disposed on one surface of the base body; anda driving coil attached around an axis of the solenoid valve,wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil.2. The hydraulic braking device according to claim 1 ,wherein a lower surface of the driving coil is in contact with the one surface of the base body.3. The hydraulic braking device according to claim 2 , comprising:a housing for housing the driving coil,wherein an urging means for urging the driving coil toward the one surface of the base body is provided between the housing and the driving coil.4. The hydraulic braking device according to claim 1 ,wherein a clearance is formed between the outer circumferential surface of the driving coil and the wall surface.5. The hydraulic braking device according to claim 1 ,wherein a recessed portion is provided on the one surface of the base body, the recessed portion being arranged around an attaching hole to which the solenoid valve is attached,and wherein the wall surface is formed by a circumferential wall forming the recessed portion. The ...

Hand Brake Valve For Braking Systems Of Pneumatically Braked Motor Vehicles

A hand brake valve () for braking systems of pneumatically braked motor vehicles includes a rocking lever () pivotably guided in a lever housing () and connected to a control element () for actuating the hand brake valve mechanism (), the rocking lever bears a shift handle () and is configured to be pivoted into different operating positions guided in a shift gate (), wherein the rocking lever comprises a locking element () that cooperates with the shift gate and that slides along a curved sliding path () of the shift gate, wherein a locking groove () is radially formed in the curved sliding path (), the locking element being snapped into said locking groove in the locked position, and wherein the hand brake valve comprises an electrical switching element () configured to be actuated exclusively in the locked position. 11. A hand brake valve () for braking systems of pneumatically braked motor vehicles , comprising:{'b': 2', '4', '9', '10', '7', '13', '2', '12', '13', '15', '13', '16', '17', '18', '19', '15', '12', '1', '22', '12', '16', '28', '22', '16', '19', '12, 'a rocking lever () pivotably guided in a lever housing () and connected to a control element (, ) for actuating a hand brake valve mechanism (), the rocking lever bears a shift handle and is configured to be pivoted into different operating positions by being guided in a shift gate (), wherein the rocking lever () comprises a locking element () that cooperates with the shift gate () and that slides along a curved sliding path () of the shift gate (), wherein a locking groove () with groove walls (, ) and a groove base () is radially formed in the curved sliding path (), the locking element () being snapped into said locking groove in a locked position, and wherein the hand brake valve () comprises an electrical switching element () configured to be actuated exclusively in the locked position of the locking element () in the locking groove (), and wherein an actuating member () of the electrical ...

HYDRAULIC CONTROL UNIT FOR AT LEAST ONE HYDRAULIC UNIT OF A BRAKE SYSTEM AND BRAKE BOOSTER CONTROL UNIT FOR AN ELECTROMECHANICAL BRAKE BOOSTER OF A BRAKE SYSTEM

A hydraulic control device for at least one hydraulic aggregate of a brake system, and a brake booster control device, interacting therewith, for an electromechanical brake booster of the brake system. The hydraulic control device includes a first control electronics by which at least one motor target quantity that is to be realized by a motor of the electromechanical brake booster can be determined, taking into account a provided brake actuating strength quantity relating to a current actuation of a brake actuating element, and by which a specification signal corresponding to the at least one determined motor target quantity can be outputted to the brake booster control device. The brake booster control device has a second control electronics that, at least in a normal mode, outputs the control signal to the motor of the electromechanical brake booster, taking into account the specification signal outputted by the hydraulic control device. 115-. (canceled)16. A hydraulic control device for at least one hydraulic aggregate of a brake system , comprising:a first control electronics by which at least one of: i) at least one valve control signal can be outputted to at least one valve of the hydraulic aggregate and/or of the brake system, and ii) at least one pump motor control signal can be outputted to at least one pump motor of at least one pump of the hydraulic aggregate and/or of the brake system;wherein the first control electronics is designed to determine at least one motor target quantity to be realized by a motor of an electromechanical brake booster of the brake system, taking into account at least one provided brake actuation strength quantity relating to a brake actuation strength of a current actuation of a brake actuating element connected to the brake system, and to output a specification signal corresponding to the at least one determined motor target quantity to a brake booster control device of the electromechanical brake booster.17. The hydraulic ...

BRAKE DEVICE

A housing of brake device includes a first oil path, a second oil path that is adjacent to the first oil path in a first direction along an axial direction of the first oil path and has a larger cross-section orthogonal to the axial direction than the first oil path, a third oil path connected to the first oil path, and a fourth oil path connected to the second oil path. A throttle member of the brake device is anchored to the housing by being press-fitted into the first oil path. The third oil path connects the fourth oil path through the throttle. When the throttle member moves in the first direction by releasing the press-fitting, the third oil path connects the fourth oil path through a gap between an inner circumferential surface forming the second oil path and an outer circumferential surface of the throttle member. 1. A brake device comprising a housing formed with a first oil path , a second oil path that is adjacent to the first oil path in a first direction along an axial direction of the first oil path and that has a larger cross-section orthogonal to the axial direction than the first oil path , a third oil path connected to the first oil path , and a fourth oil path connected to the second oil path; anda throttle member that is anchored to the housing by being press-fitted into the first oil path and that is provided with a throttle that passes through in the axial direction; whereinthe third oil path and the fourth oil path are connected through the throttle; andwhen the press-fitting of the throttle member into the first oil path is released and the throttle member is moved in the first direction, the third oil path and the fourth oil path are connected through a gap between an inner circumferential surface forming the second oil path of the housing and an outer circumferential surface of the throttle member.2. The brake device according to claim 1 , whereinthe throttle member has a press-fitting portion that has the largest cross-section orthogonal ...

MOTOR MODULE AND ABS HYDRAULIC UNIT

The invention aims to provide a motor module in which the number of components is reduced and the number of steps required for assembly is reduced, and an ABS hydraulic unit in which the motor module is embedded. Provided is a motor module including a motor and a planetary gear mechanism which is attached to an output shaft of the motor. The motor module includes a fixing portion that integrally fixes the motor and the planetary gear mechanism. The fixing portion fixes the motor by inwardly clamping the motor and fixes an internal gear of the planetary gear mechanism. 1. A motor module comprising:a motor and a planetary gear mechanism which is attached to an output shaft of the motor, anda fixing portion that integrally fixes the motor and the planetary gear mechanism to each other,wherein the fixing portion fixes the motor by inwardly clamping the motor and fixes an internal gear of the planetary gear mechanism.2. The motor module according to claim 1 ,wherein the fixing portion fixes the internal gear thereto by inwardly clamping the internal gear thereto.3. The motor module according to claim 1 ,wherein an end of the fixing portion on a planetary gear mechanism side is formed so as to be widened in a flange shape in a direction away from a shaft center of the motor.4. The motor module according to claim 1 ,wherein the internal gear has a flange portion which is formed so as to be widened in a flange shape in a direction away from the shaft center of the motor.5. The motor module according to claim 4 ,wherein an outer diameter of the flange portion is formed so as to be substantially the same as an outer diameter of an end of the fixing portion on a planetary gear mechanism side.6. The motor module according to claim 4 ,wherein an end of the fixing portion is in contact with the flange portion of the internal gear.7. The motor module according to claim 1 ,wherein a planetary carrier of the planetary gear mechanism is configured to fix an eccentric shaft driving a ...

METHOD FOR MONITORING AN ABS CONTROL PROCEDURE IN AN ELECTRICALLY CONTROLLABLE BRAKE SYSTEM AND ELECTRONICALLY CONTROLLABLE BRAKE SYSTEM

A method for monitoring an ABS control procedure in an electrically controllable brake system in a vehicle includes reading in input signals, wherein based on the input signals it is possible to derive currently prevailing control variables for the ABS control procedure and ABS control parameters that relate to a brake slip-controlled actuation of an ABS control valve of the brake system. The method further includes checking whether it follows that an activation of any ABS control valve that is allocated to a wheel of the vehicle is requested, and whether it follows that an ABS brake slip incident is present at at least a first wheel of the vehicle, and/or whether, based on the ABS control parameters, it follows that further ABS control valves, which are allocated at least to one second wheel of the vehicle, implement correctly a brake slip-controlled activation. 1. A method for monitoring an ABS control procedure in an electrically controllable brake system in a vehicle , the method comprising:reading in input signals, wherein based on the input signals it is possible to derive currently prevailing control variables for the ABS control procedure and ABS control parameters that relate to a brake slip-controlled actuation of an ABS control valve of the brake system;checking, based on the input signals, whether it follows that an activation of any ABS control valve that is allocated to a wheel of the vehicle is requested, and based on the control variables whether it follows that an ABS brake slip incident is present at at least a first wheel of the vehicle, and/or whether, based on the ABS control parameters, it follows that further ABS control valves, which are allocated at least to one second wheel of the vehicle, implement correctly a brake slip-controlled activation; andoutputting a deactivation signal in dependence upon the checking in order to prevent an actuation of the ABS control valves in dependence upon the situation.2. The method as claimed in claim 1 , ...

Brake System For A Vehicle

The present invention pertains to a brake system for a vehicle, in particular a wheeled vehicle, comprising a control unit configured to operate the brake system in an automatic retarding control mode and in a brake assist mode, a brake pedal valve, and at least one brake valve unit for actuating a brake actuator. The break valve unit comprises a brake valve for applying pressurized fluid to the brake actuator in response to a control pressure applied to a hydraulic actuator of the brake valve, a blocking valve for controlling application of pressurized fluid from the brake pedal valve to the hydraulic actuator of the brake valve, and a brake pressure control valve for controlling application of pressurized fluid to the hydraulic actuator of the brake valve. 1. A brake system for a vehicle , in particular a wheeled vehicle , comprising:a control, unit configured to operate the brake system in an automatic retarding control mode and in a brake assist mode;a brake pedal valve; and a blocking valve for applying pressurized fluid to the brake actuator in response to a control pressure applied to a hydraulic actuator of the brake valve,', 'a blocking valve for controlling application of pressurized fluid from the brake pedal valve to the hydraulic actuator of the brake valve, and', 'a brake pressure control valve for controlling application of pressurized fluid to the hydraulic actuator of the brake valve., 'at least one brake valve unit for actuating a brake actuator having2. The brake system according to claim 1 , wherein the control unit is configured to actuate at least one of the blocking valve and the brake pressure control valve.3. The brake system according to claim 1 , wherein the control unit is configured to actuate the blocking valve so as to block application of pressurized fluid from the brake pedal valve to the hydraulic actuator of the brake valve.4. The brake system according to claim 1 , wherein the control unit is configured to actuate the brake ...

RELAY VALVE MODULE OF A PNEUMATIC BRAKE SYSTEM

A relay valve module of a pneumatic brake system for a vehicle includes a relay valve and an actuating unit. A valve body of the relay valve defines therein an air supply chamber in fluid communication with a supply air reservoir, and a delivery chamber in fluid communication with brake cylinders. A valve seat is disposed between the air supply and delivery chambers; and is opened and closed by movement of a valve member that is actuated by a piston slidable relative to the valve body. The actuating unit includes a stem assembly moved by a pressure to press the piston so as to move the valve member, and an actuating assembly electrically connected with an electronic control unit of the vehicle to receive a brake signal therefrom to provide the pressure to the stem assembly. 1. A relay valve module of a pneumatic brake system for a vehicle which includes an electronic control unit , cylinders , said , relay valve module comprising:a relay valve having a valve body which defines therein an air supply chamber in fluid communication with the supply air reservoir and a delivery chamber in fluid communication with the brake cylinders, a valve seat which is disposed between said air supply and delivery chambers, a valve member which is disposed to be moved relative to said valve body between an opened position, where said valve member is remote from said valve seat to permit air flow from said air supply chamber to said delivery chamber, and a normal closed position, where said valve member contacts said valve seat to obstruct the air flow, and a piston, which is disposed within and slidable relative to said valve body to move said valve member to the opened position;an actuating unit including a stem assembly which has a first end disposed within said valve body and adjacent to said piston, and which is moved by a pressure to permit said first end to be engaged with and press said piston so as to move said valve member to the opened position, and an actuating assembly ...

VEHICLE BRAKING CONTROL DEVICE

The vehicle braking control device adapted to a vehicle brake device having an electromagnetic valve which controls the brake fluid flow between the master cylinder and the wheel cylinders in response to the input electric energy. The vehicle braking control device includes a valve opening electric energy obtaining portion which obtains an input electric energy upon opening of the electromagnetic valve as a valve opening electric energy and an operation characteristic setting portion which sets an operation characteristic based on the valve opening electric energy obtained corresponding to the predetermined pressure differential. The opening valve electric energy obtaining portion changes the input electric energy at a valve closing side or a valve opening side with a change amount per unit of time larger than before valve opening in response to an obtaining of the valve opening electric energy. 1. A vehicle braking control device adapted to a vehicle brake device having an electromagnetic valve disposed between a master cylinder and a wheel cylinder for controlling brake fluid flow therebetween in response to an input electric energy , comprising:a pressure differential control portion for generating a predetermined pressure differential between a master cylinder side and a wheel cylinder side with respect to the electromagnetic valve;a valve opening electric energy obtaining portion for obtaining the input electric energy upon opening of the electromagnetic valve as a valve opening electric energy, by changing the input electric energy towards an opening side of the electromagnetic valve with time, under the predetermined pressure differential being generated by the pressure differential control portion, after the input electric energy has been changed to close the electromagnetic valve; and,an operation characteristic setting portion for setting an operation characteristic which is a relationship between the input electric energy to the electromagnetic valve and ...

SOLENOID VALVE ASSEMBLY FOR A BRAKING SYSTEM FOR A VEHICLE, BRAKING SYSTEM FOR A VEHICLE, AND METHOD FOR MOUNTING A SOLENOID VALVE ASSEMBLY FOR A BRAKING SYSTEM FOR A VEHICLE

A solenoid valve apparatus for a brake system for a vehicle, including: a main valve unit; a pilot-control valve unit that is fluidically connected to the main valve unit; and a housing to accommodate at least the main valve unit and the pilot-control valve unit; in which the pilot-control valve unit includes a double solenoid unit and at least one valve device, in which the double solenoid unit is formed such that it can be populated with at least one valve device, and in which the double solenoid unit has at least two accommodating portions for accommodating valve devices and at least two solenoid devices for actuating valve devices. Also described are a related braking system and a related method for mounting a solenoid valve assembly for a braking system for a vehicle. 114-. (canceled)15. A solenoid valve apparatus for a brake system for a vehicle , comprising:a main valve unit;a pilot-control valve unit that is fluidically connected to the main valve unit; anda housing to accommodate at least the main valve unit and the pilot-control valve unit;wherein the pilot-control valve unit includes a double solenoid unit and at least one valve device, wherein the double solenoid unit is formed such that it can be populated with at least one valve device, and wherein the double solenoid unit has at least two accommodating portions for accommodating valve devices and at least two solenoid devices for actuating valve devices.16. The solenoid valve apparatus of claim 15 , wherein the accommodating portions and the solenoid devices of the double solenoid unit are enclosed by a common body of the double solenoid unit.17. The solenoid valve apparatus of claim 15 , wherein the double solenoid unit is arrangeable or arranged in a clamped manner in the housing.18. The solenoid valve apparatus of claim 15 , wherein the housing has at least one closing device by which the housing is openable and closable to make at least the pilot-control valve unit accessible.19. The solenoid ...

PARKING BRAKE VALVE DEVICE

A parking brake valve device for controlling a storage spring parking brake in an electropneumatic brake system includes a compressed air input configured to be connected to a compressed air supply, a parking brake output configured to control a storage spring parking brake, and a trailer-control control output configured to control a trailer control valve (TCV) for a trailer brake system. The parking brake valve device further includes a relay valve pilot control region and a relay valve, a TCV pilot control region configured to control the trailer-control control output, an inlet valve configured to be controlled with a first electrical control signal for supplying air to the TCV pilot control region and the relay valve pilot control region, and a connecting valve configured to be controlled by a second control signal to connect and disconnect the TCV pilot control region and the relay valve pilot control region. 1. A parking brake valve device for controlling a storage spring parking brake in an electropneumatic brake system , wherein the parking brake valve device comprises:a compressed air input configured to be connected to a compressed air supply;a parking brake output configured to control a storage spring parking brake;a trailer-control control output configured to control a trailer control valve (TCV) for a trailer brake system, the trailer-control control output being configured to be supplied with air for releasing the trailer brake system;a relay valve pilot control region and a relay valve configured to be controlled by the relay valve pilot control region, which connects the compressed air input to the parking brake output when in an operated position and which vents the parking brake output when in a non-operated position;a TCV pilot control region configured to control the trailer-control control output;an inlet valve configured to be controlled with a first electrical control signal for supplying air to the TCV pilot control region and the relay ...

BRAKE CONTROL DEVICE FOR SADDLE RIDING VEHICLE

The pressure sensor functions as a first detection portion for detecting hydraulic pressure set according to operation of a brake pedal. The control unit detects the hydraulic pressure acting on the second piston portion through the pipe. The control unit controls differential pressure in the detected hydraulic pressure to a target value set according to vehicle speed. 1. A brake control device for a saddle riding vehicle comprising:a rear wheel brake operation element for operating a rear wheel brake;a master cylinder for generating hydraulic pressure according to operation of the rear wheel brake operation element;a first detection portion for detecting the hydraulic pressure generated according to the operation of the rear wheel brake operation element;a front wheel brake; anda flow passage configured to connect the master cylinder and the front wheel brake to each other, characterized in thata second detection portion for detecting the hydraulic pressure acting on the front wheel brake through the flow passage; anda control unit for controlling a difference in the hydraulic pressure to a target value, the difference in the hydraulic pressure being detected by the first and second detection portions, the target value being set according to vehicle speed of the saddle riding vehicle.2. The brake control device for a saddle riding vehicle according to claim 1 , wherein the control unit sets the target value to a smaller value as the vehicle speed is higher.3. The brake control device for a saddle riding vehicle according to claim 1 , wherein the control unit sets as the target value a value set according to an original vehicle speed with the rear wheel brake operation element operated.4. The brake control device for a saddle riding vehicle according to claim 1 ,furthermore comprising an opening regulating valve for regulating an opening of the flow passage,wherein the control unit controls the opening of the opening regulating valve in order to set the difference ...

VEHICLE IMMOBILIZATION MECHANISM

Systems and methods for immobilization of a vehicle include a remote device coupled to a network, the remote device including a transceiver, and a vehicle including a communication interface coupled to the network, the communication interface configured to provide telematics data to, and receive commands from, the transceiver. The system further includes an energy store on the vehicle, the energy store configured to supply electrical power to the communication interface. In some embodiments, at least one of the commands received from the transceiver is configured to immobilize the vehicle. In some cases, the at least one command received from the transceiver is configured to release air pressure in an air line of the vehicle to actuate a plurality of air brakes on the vehicle, or to actuate a wheel-lock mechanism within an electrically powered drive axle on the vehicle. 1. A system for remotely immobilizing a vehicle comprising:a first brake subsystem configured to actuate a plurality of air brakes coupled to axles of the vehicle when an air pressure in a first air line is below a specified value;a release valve fluidly connected to the first air line, wherein the release valve has at least a first operating position and a second operating position; anda communication interface coupled to the release valve, wherein the communication interface is configured to receive commands from a remote transceiver to position the release valve into one of the first and second operating positions;wherein while the release valve is positioned in the first operating position, the air pressure in the first line is maintained, and while the release value is positioned in the second operating position, the air pressure in the first air line is released to reduce the air pressure to a value below the specified value and actuate the plurality of air brakes to immobilize the vehicle.2. The system of claim 1 ,wherein the vehicle includes a tractor-trailer vehicle; andwherein the first ...

Valve Armature and Valve Cartridge for a Solenoid Valve

A valve armature for a solenoid valve has a basic body consisting of a magnetically conductive metal. On one end of the basic body is arranged a depression which receives a tappet having a closing element. A tappet basic body consists of plastic and forms an interference fit with the basic body. A valve cartridge for a solenoid valve has such a valve armature, in which case, the basic body has an annular groove which is connected to the depression. The annular groove receives plastic deformations of the tappet basic body which form a form fit with the annular groove and fix the tappet basic body in the depression. 1. A valve armature for a solenoid valve , the valve armature comprising:a basic body of a magnetically conductive metal, a depression arranged on one end of the basic body, the depression configured to receive a tappet having a closing element; anda tappet basic body is composed of plastic and configured to form an interference fit with the basic body, wherein:the basic body has an annular groove,the annular groove is connected to the depression and is configured to receive plastic deformations of the tappet basic body, andthe plastic deformations of the tappet basic body form a positive interlock with the annular groove and fix the tappet basic body in the depression.2. The valve armature as claimed in claim 1 , wherein the plastic is a thermoplastic.3. The valve armature as claimed in claim 1 , wherein the depression is a blind hole.4. The valve armature as claimed in claim 1 , wherein the annular groove is arranged at the end of a contact zone between a wall of the depression and the tappet basic body.5. The valve armature as claimed in claim 1 , wherein the annular groove forms an edge to the depression in the direction of an opening.6. The valve armature as claimed in claim 5 , wherein the edge between the annular groove and the depression has a right angle.7. The valve armature as claimed in claim 1 , wherein the depression has an insertion bevel.8. ...

AUTOMATIC FLOW CALIBRATION FOR LOCOMOTIVE AIR BRAKE SYSTEM

A system and method for automatically calibrating the flow measurement device of a locomotive air brake control system. The air brake control computer controls activates a magnet valve to create a predetermined flow from the brake pipe through an orifice to exhaust, thereby creating a reference flow value to enable the calibration of the flow measurement device. The system reduces the likelihood of human error and variability by automating the steps necessary for flow measurement calibration under computer control. 1. A system for automatically calibrating flow measurements in an air brake system comprising:a magnet valve for selectively coupling a source of brake pipe pressure to an exhaust via an orifice having a predetermined diameter;a flow measurement assembly for outputting a signal representing volumetric air flow between a source of main reservoir pressure and the brake pipe pressure; anda controller coupled to the magnet valve and programmed to calibrate the signal of the flow measurement assembly based on volumetric air flow through the orifice when the magnet valve couples the brake pipe pressure to the exhaust.2. The system of claim 2 , further comprising a brake pipe relay valve having an inlet connected to the main reservoir pressure and an outlet connected to the brake pipe pressure that is moveable to selectively couple the brake pipe pressure to the main reservoir pressure or to the exhaust until an equalizing reservoir pilot pressure is nominally matched.3. The system of claim 2 , wherein the flow measurement assembly is positioned between the main reservoir pressure and the inlet of the brake pipe relay valve.4. The system of claim 3 , further comprising an equalizing reservoir pilot pressure control assembly coupled to a pilot of the brake pipe relay valve.5. The system of claim 4 , wherein the controller is programmed to operate the equalizing reservoir pilot pressure control assembly to pilot the brake pipe relay valve so that a predetermined ...

Valve unit for modulating pressure in an air-brake system

A valve unit ( 1.1, 1.2, 1.3 ) for modulating pressure in a compressed air braking system has an inlet valve ( 6 ) configured as a diaphragm valve, an outlet valve ( 7 ) configured as a diaphragm valve, and respective precontrol valves ( 8, 9 ), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing ( 2 ), which is divided by a division plane ( 10 ) that is largely horizontal in the installation position into a base housing ( 11 ) and a housing cover ( 12 ). The precontrol valves ( 8, 9 ) are arranged in the housing cover ( 12 ) in the longitudinal direction ( 13 ), and the housing cover ( 12 ) has a centrally arranged magnet module ( 20 ) and two air guide modules ( 23, 24 ) adjacent to the magnet module ( 20 ) in the longitudinal direction ( 13 ) and connected via a single connecting element ( 45 ) both to each other and to the base housing ( 11 ).

SOLENOID VALVE CONTROL APPARATUS AND METHOD

Disclosed herein are a solenoid valve control apparatus and method. The solenoid valve control apparatus to control a solenoid valve which include a solenoid coil and is opened and closed by current supplied to the solenoid coil, includes a switching unit which switches the current supplied to the solenoid coil, a pre-driver unit which outputs a driving signal to drive the switching unit, a current detection unit which detects the current flowing in the solenoid coil, and an MCU which controls the pre-driver unit so as to output the driving signal from the pre-driver unit to the switching unit such that a value of the current detected by the current detection unit reaches a target current value during current control of the solenoid valve and controls the pre-driver unit such that a frequency of the output driving signal is varied during output of the driving signal. 1. A solenoid valve control apparatus to control a solenoid valve which include a solenoid coil and is opened and closed by current supplied to the solenoid coil so as to regulate brake pressure supplied to a wheel cylinder , the solenoid valve control apparatus comprising:a switching unit which switches the current supplied to the solenoid coil;a pre-driver unit which outputs a driving signal to drive the switching unit;a current detection unit which detects the current flowing in the solenoid coil; andan MCU which controls the pre-driver unit so as to output the driving signal from the pre-driver unit to the switching unit such that a value of the current detected by the current detection unit reaches a target current value during current control of the solenoid valve and controls the pre-driver unit such that a frequency of the output driving signal is varied during output of the driving signal.2. The solenoid valve control apparatus according to claim 1 , wherein the MCU controls the pre-driver unit such that the frequency of the driving signal is continuously varied over time during output of the ...

MOTOR VEHICLE SOLENOID VALVE

Disclosed is a motor vehicle solenoid valve (). The solenoid valve includes a fixed body () intended to be mounted in a hydraulic system of the vehicle, a cylindrical coil supporting unit () mounted on the fixed body, a mobile body () slidingly mounted in the fixed body through the coil supporting unit and at least a first coil winding () arranged about the coil supporting unit and suitable for generating a magnetic field for control of the sliding of the mobile body. The solenoid valve further includes a second coil winding () arranged about the first coil winding in order to contain the magnetic field generated by the first coil winding. 11020402030204050403010605050. Motor vehicle solenoid valve () , comprising a fixed body () intended to be mounted in a hydraulic system of the vehicle , a cylindrical coil supporting means () mounted on said fixed body () , a mobile body () slidingly mounted in said fixed body () through said coil supporting means () and at least a first coil winding () arranged about the coil supporting means () and suitable for generating a magnetic field for control of the sliding of said mobile body () , said solenoid valve () further comprising a second coil winding () arranged about the first coil winding () in order to contain the magnetic field generated by said first coil winding ().2102022108122. Solenoid valve () according to claim 1 , wherein claim 1 , since the fixed body () extends longitudinally up to a free end () claim 1 , the solenoid valve () comprises at least one washer () mounted at said free end ().310905060. Solenoid valve () according to claim 1 , comprising an insulator () placed between the first coil winding () and the second coil winding ().41060. Solenoid valve () according to claim 1 , wherein claim 1 , since the second coil winding () comprises at least one wire extending from a first end to a second end claim 1 , said first end and said second end are linked to one another.5105060. Solenoid valve () according to ...

Brake Module for a Hydraulically Braked Towing Vehicle Coupleable to a Pneumatically Braked Trailer Vehicle

In a vehicle combination including a hydraulically braked towing vehicle and a pneumatically braked trailer, a brake module serving as a trailer control valve has an electropneumatic pressure regulating module with an electronic controller that converts pressure signals from a sensor at a hydraulic pressure line from a hydraulically-actuated service brake master cylinder into control pulses for electromagnetic control valves in the regulating module. The control valves are connected via a pneumatic supply pressure inlet to a compressed air reservoir, and via a pneumatic control pressure outlet to a control pressure coupling head. The brake module has a redundancy valve arrangement and is connected via a hydraulic control inlet to the hydraulic pressure line, and via a pneumatic inlet to the reservoir, the hydraulic control pressure determining the magnitude of the pneumatic outlet pressure at an outlet of the redundancy arrangement, which is connected to the coupling head when an electrical/electronic component relevant to brake module operation fails. The pneumatic outlet is disconnected from the coupling head in fault-free operation. The regulating module and redundancy arrangement are connected pneumatically in parallel, and the pneumatic outlet can be connected exclusively to the coupling head. 1. A brake module for a hydraulically braked towing vehicle , the towing vehicle being coupleable to a pneumatically braked trailer vehicle , the towing vehicle including a hydraulically actuated service brake having at least one brake master cylinder actuatable by a brake actuator to generate a hydraulic pressure in at least one wheel brake cylinder of at least one wheel of the towing vehicle , the at least one brake master cylinder having a hydraulic pressure line emanating therefrom and connected to at least one pressure sensor configured to detect the hydraulic pressure , the brake module comprising:electropneumatic pressure regulating module having an electronic ...

Brake system

In one embodiment of the brake system, the control unit executes a fluid suction control to suck in the brake fluid from the supply line. The control unit determines whether or not the fluid suction control needs to be executed, and in the event that the control unit determines that the fluid suction control needs to be executed, the control unit is configured to close the cutoff valve and control the electric actuator to drive the slave cylinder in a depressurizing direction.

CIRCUIT BOARD AND VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL UNIT

One embodiment provides a circuit board having a substrate and an electrode portion which is provided on the substrate. The electrode portion includes: a quadrangular land which is provided on a front surface of the substrate; a solder layer which is laminated on the whole of a front surface of the land; and a pad which is joined to a front surface of the solder layer. When the electrode portion is seen from thereabove, an outer circumferential line of the pad touches each of four sides of the land. Exposed portions where the solder layer is exposed are formed individually at four corners of a front surface of the electrode portion. And, the exposed portions are formed to have the same shape. 1. A circuit board having a substrate and an electrode portion which is provided on the substrate , the electrode portion including:a quadrangular land which is provided on a front surface of the substrate;a solder layer which is laminated on the whole of a front surface of the land; anda pad which is joined to a front surface of the solder layer,wherein, when the electrode portion is seen from thereabove, an outer circumferential line of the pad touches each of four sides of the land,wherein exposed portions where the solder layer is exposed are formed individually at four corners or four sides of a front surface of the electrode portion, andwherein the exposed portions are formed to have the same shape.2. The circuit board of claim 1 ,wherein, when the electrode portion is seen from thereabove, four sides of the pad are superposed on the four sides of the land, andwherein the exposed portions are formed individually at four corners of the front surface of the electrode portion.3. The circuit board of claim 2 ,wherein the pad has a quadrangular shape, and four corner portions are chamfered equally.4. The circuit board of claim 1 ,wherein the pad has a circular or ellipsoidal shape,wherein, when the electrode portion is seen from thereabove, the outer circumferential line of ...

Valve arrangement for a hydraulically braked tractor vehicle with a pneumatically braked trailer vehicle

A valve arrangement ( 2 ) of a hydraulically braked tractor vehicle for controlling the brake pressure of a pneumatically braked trailer includes an electronically controlled trailer control valve ( 6 ) with an inlet valve ( 14 ), an outlet valve ( 16 ), a pneumatical relay valve ( 18 ), a breakaway valve ( 20 ) and a brake control pressure sensor ( 24 ). The valve arrangement also has a hydraulically controlled backup valve ( 8 ) with a hydraulically activated relay valve ( 46 ), a redundancy valve ( 48 ) and a hydraulic control pressure sensor ( 50 ). Output-side brake control lines ( 40, 76; 62, 78 ) are connected via a shuttle valve ( 10 ) to a brake coupling head ( 82 ). The valves ( 14, 16, 18, 20 ) and the pressure sensors ( 24, 50 ) of the trailer control valve ( 6 ), the valves ( 46, 48 ) of the backup valve ( 8 ,) and the shuttle valve ( 10 ) may be combined in one trailer control module ( 98 ) with a single housing ( 100 ).

MODULATOR VALVE

A modulator valve for use with the auxiliary axle anti-lock braking system of a truck, configured and constructed such that no braking application pressure signal is permitted to be delivered to the auxiliary axle anti-lock braking system when the auxiliary axle is in the lifted position, and a modulated braking application pressure signal is delivered to the auxiliary axle anti-lock braking system when the auxiliary axle is not in the lifted position. The modulated braking application pressure depends upon the pressure sensed from ride springs of the suspension system of the truck. 1. A modulator valve for installation in the braking system of a vehicle having an auxiliary axle , the valve having a valve body comprising:a control port for receiving a brake application pressure signal;a lift port for receiving a pressure signal from a lifting system for the auxiliary axle;a ride port for receiving a pressure signal from a suspension system for the auxiliary axle, with the suspension system including ride springs;a supply port for receiving a pressure signal from a supply reservoir;a delivery port for delivering a pressure signal to the auxiliary axle's anti-lock brake system;a piston, spring, and valve arrangement operatively connected to the control port and the lift port and configured and dimensioned such that when the auxiliary axle is lifted no brake application pressure signal is allowed to pass to the delivery port, and when the auxiliary axle is not lifted a brake application pressure signal is allowed to pass to the delivery port.2. The modulator valve according to claim 1 , wherein the piston claim 1 , spring claim 1 , and valve arrangement includes a modulator piston operatively connected to the control port claim 1 , supply port claim 1 , and delivery port claim 1 , wherein the modulator piston has an upper surface separated into distinct areas configured to receive a percentage of the brake application pressure signal claim 1 , and a lower surface of ...

Solenoid Valve for Controlling the Brake Pressure of a Wheel Brake

A solenoid valve, for controlling a brake pressure of a wheel brake of a slip-regulatable hydraulic brake system for a motor vehicle, includes a valve element, valve insert, valve seat, spring device, electromagnetic actuator, and armature. The valve element is longitudinally movably positioned at least partially in the valve insert, positioned between the armature and the valve seat, and configured to interact with the valve seat. The spring device, in an assembled position, has a force component acting on the valve element in an opening direction with respect to the valve seat. The electromagnetic actuator is configured to act on the valve element in a closing direction with respect to the valve seat. The valve element has a contact surface operatively connecting the valve element and armature, and configured such that a central axis of the valve element and the contact surface form a non-rectangular intersection angle. 1. A solenoid valve for controlling a brake pressure of a wheel brake of a slip-controllable hydraulic brake system of a motor vehicle , the solenoid valve comprising:a valve insert;a valve seat;an armature; the valve element includes a contact surface that operatively connects that valve element to the armature; and', 'the contact surface is configured such that a central axis of the valve element and the contact surface form a non-right-angled intersection;, 'a valve element positioned between the armature and the valve seat, and positioned at least partly in the valve insert in a longitudinally movable manner so as to be configured to interact with the valve seat, whereina spring device with a force component that acts on the valve element, in an installed position of the valve element, in an opening direction with respect to the valve seat; andan electromagnetic actuator configured to actuate the valve element in a closing direction with respect to the valve seat.2. The solenoid valve as claimed in claim 1 , wherein:the valve element further ...

PROGNOSTICS FOR PRESSURE SENSORS OF HYDRAULIC BRAKE SYSTEMS

A method of performing prognostics on a hydraulic brake system of an aircraft may include determining, during primary braking mode and by a hydraulic brake controller, a first status of a first brake pressure sensor adjacent a brake assembly. The method may also include, in response to determining that the first status of the first brake pressure sensor is valid, determining, during park braking mode and by the hydraulic brake controller, a second status of a second brake pressure sensor adjacent a park valve assembly. In response to determining that the first status of the first brake pressure sensor is degraded, the method may include outputting, by the hydraulic brake controller, at least one of an inspection indicator and a maintenance indicator. 1. A method of performing prognostics on a hydraulic brake system of an aircraft , the method comprising:determining, during primary braking mode and by a hydraulic brake controller, a first status of a first brake pressure sensor adjacent a brake assembly; andin response to determining that the first status of the first brake pressure sensor is valid, determining, during park braking mode and by the hydraulic brake controller, a second status of a second brake pressure sensor adjacent a park valve assembly.2. The method of claim 1 , wherein in response to determining that the first status of the first brake pressure sensor is degraded claim 1 , the method further comprises outputting claim 1 , by the hydraulic brake controller claim 1 , at least one of an inspection indicator and a maintenance indicator.3. The method of claim 1 , wherein the first brake pressure sensor is coupled to a first hydraulic line extending between a shuttle valve and the brake assembly.4. The method of claim 3 , wherein the second brake pressure sensor is upstream of the shuttle valve.5. The method of claim 3 , wherein the second brake pressure sensor is coupled to a second hydraulic line extending between the park valve assembly and the ...

DUAL PRESSURE CONTROL FOR A ROTOR BRAKE ACTUATOR FOR VERTICAL LIFT AIRCRAFT

In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure. 119-. (canceled)20. A rotor blade rotation control master cylinder assembly for vertical lift aircraft , the assembly comprising:a master cylinder configured to be activated by movement of a rotor blade rotation control handle of a vertical lift aircraft to move pressurized hydraulic fluid through one or more conduits;a rotor brake actuator connected to the master cylinder and configured to engage a rotor brake of the vertical lift aircraft in response to receiving hydraulic fluid at a hydraulic fluid pressure from the master cylinder;a pressure relief valve fluidly connected in parallel to the master cylinder and the rotor brake actuator, and configured to transmit pressurized hydraulic fluid away from the rotor brake actuator in response to the hydraulic fluid pressure exceeding a pressure threshold of the pressure relief valve; andan isolation valve connected in series to the master cylinder and the pressure relief valve, the master cylinder configured to push the hydraulic fluid at a first pressure to the rotor brake actuator in response to the isolation valve being open and to push the hydraulic fluid at a second pressure that is higher than the first pressure in response to the isolation valve being closed.21. The rotor blade rotation control master cylinder ...

VEHICLE BRAKE SYSTEM WITH ADAPTIVE PRESSURE CALIBRATION

A method of calibrating a solenoid actuated valve includes: providing a brake system including a fluid pressure source: providing a valve having a solenoid, and wherein the valve is in fluid communication with the fluid pressure source; operating the fluid pressure source to provide a constant flow of fluid to the valve; energizing the solenoid of the valve with a constant current such that fluid flows through the valve; measuring the pressure of the fluid flowing at the valve; adjusting the current sent to the solenoid until a predetermined pressure has been obtained; storing a nominal current value of the current required to obtain the predetermined pressure; and calibrating the valve by adding a correction offset factor to the nominal current value for future actuation of the solenoid of the valve. 1. A method of calibrating a solenoid actuated valve within a brake system comprising:(a) providing a brake system including a fluid pressure source:(b) providing a valve having a solenoid, and wherein the valve is in fluid communication with the fluid pressure source;(c) operating the fluid pressure source to provide a constant flow of fluid to the valve;(d) energizing the solenoid of the valve with a constant current such that fluid flows through the valve;(e) measuring the pressure of the fluid flowing at the valve;(f) adjusting the current sent to the solenoid until a predetermined pressure has been obtained;(g) storing a nominal current value of the current required to obtain the predetermined pressure; and(h) calibrating the valve by adding a correction offset factor to the nominal current value for future actuation of the solenoid of the valve.2. The method of claim 1 , further calibrating the valve to add a correction gain factor by adding a percentage of the nominal current to all data points of future actuation of the solenoid valve.3. The method of claim 1 , wherein the method of calibrating the valve is performed after initial assembly of the valve and ...

HYDRAULIC ARRANGEMENT FOR HYBRID PRIORITY VALVE

A hydraulic arrangement for distributing a fluid in pressure coming from a source among multiple hydraulic units of a work vehicle. At least one of the hydraulic units provides an electronic load sensing signal and of the hydraulic units provides a hydraulic load sensing signal. The hydraulic arrangement includes a priority valve configured to divide the flow of fluid between the hydraulic units. The priority valve and source are hydraulically controlled by a first hydraulic load sensing signal resulting as the greatest of a plurality of hydraulic load pressure signals taken from the hydraulic unit. The hydraulic arrangement also includes a conversion unit configured to transform an electronic load sensing signal of at least one of the hydraulic units in an equivalent hydraulic load sensing signal so as to define the first hydraulic load sensing signal. 112-. (canceled)13. A hydraulic arrangement for distributing a fluid in pressure coming from a source of fluid in pressure among a plurality of hydraulic units of a work vehicle , wherein a first hydraulic unit of the plurality of hydraulic units is configured to provide an electronic load sensing signal and a second and a third hydraulic unit of the plurality of hydraulic units are each configured to provide a first hydraulic load sensing signal and a second hydraulic load sensing signal , respectively , the hydraulic arrangement comprising:a priority valve configured to divide the flow of the fluid between the plurality of hydraulic units, wherein the priority valve and the source are hydraulically controlled by a fourth hydraulic load sensing signal determined as the greatest hydraulic load sensing signal among the first and the second hydraulic load sensing signals;a conversion unit configured to transform the electronic load sensing signal to an equivalent hydraulic load sensing signal so as to define the fourth hydraulic load sensing signal controlling priority valve and source.14. The hydraulic arrangement ...

Pump Device and Braking System

Provided is a pump device capable of suppressing an increase in size of a housing. The pump device includes: a housing including therein an oil passage and a pump; a motor configured to drive the pump; a motor mounting surface which is formed on one side surface of the housing, and to which the motor is mounted; a first port which is formed on the motor mounting surface, and to which a pipe connected to a master cylinder is mounted; a first surface formed so as to continue to the motor mounting surface, and including a second port to which a pipe connected to a wheel cylinder is mounted; a second surface formed so as to continue to the motor mounting surface and the first surface; and a third port which is formed on the second surface, and to which a pipe connecting an external device and the oil passage to each other is fixed. 1. A pump device comprising:a housing including therein an oil passage and a pump;a motor configured to drive the pump;a motor mounting surface which is formed on one side surface of the housing, and to which the motor is mounted;a first port which is formed on the motor mounting surface, and to which a pipe connected to a master cylinder is mounted;a first surface formed so as to continue to the motor mounting surface, and including a second port to which a pipe connected to a wheel cylinder is mounted;a second surface formed so as to continue to the motor mounting surface and the first surface; anda third port which is formed on the second surface, and to which a pipe connecting an external device and the oil passage to each other is fixed.2. The pump device according to claim 1 ,wherein the external device is a master cylinder unit including a master cylinder and a stroke simulator configured to generate an operation reaction force through an outflow of brake fluid in a liquid chamber through a brake operation by a driver, andwherein the brake fluid flowed out from the liquid chamber flows through the pipe fixed to the third port.3. The ...

GUIDE SLEEVE FOR GUIDING A COLLAR OF A RELAY VALVE FOR AN ELECTROPNEUMATIC MODULATOR

A guide sleeve for guiding a collar of a relay valve for an electropneumatic modulator for a brake system for a vehicle, includes: a guide section configured to be couple-able to a counterpart guide section of the collar of the relay valve so as to allow guidance of the collar along the guide section; and a holding section configured to fasten the guide sleeve in a positively locking manner in a housing of the relay valve. Also described are a related guide sleeve device, and a relay valve, and a related method. 113-. (canceled)14. A guide sleeve for guiding a collar of a relay valve for an electropneumatic modulator for a brake system for a vehicle , comprising:a guide section configured to be couple-able to a counterpart guide section of the collar of the relay valve so as to allow guidance of the collar along the guide section; anda holding section configured to fasten the guide sleeve in a positively locking manner in a housing of the relay valve.15. The guide sleeve of claim 14 , wherein the holding section forms at least one detent hook and/or one bayonet.16. The guide sleeve of claim 14 , wherein the guide section and the holding section extend to two opposite sides of the guide sleeve.17. The guide sleeve of claim 14 , further comprising:a central section which is formed between the guide section and the holding section and which is of substantially circular-ring-shaped or hollow frustoconical form.18. The guide sleeve of claim 14 , wherein the holding section extends away from an edge section of a bottom side of the central section claim 14 , and/or wherein the guide section extends away from a substantially central region of a top side claim 14 , arranged opposite the bottom side claim 14 , of the central section.19. The guide sleeve of claim 17 , further comprising:at least one axial rib which extends away from a bottom side, facing toward the holding section, of the central section and/or which has an extent axis which is arranged so as to run parallel ...

BRAKE SYSTEM FOR A VEHICLE TRAIN AND TRACTOR THEREWITH

A fluid-operated braking system () for a tractor-trailer vehicle includes a trailer control valve (), a parking brake module (), and an electronic control unit () electrically connected to the trailer control valve () and to the parking brake module (). A pressure fluid accumulator () of the braking system () is connected to a control pressure input (P) of the trailer control valve (). A redundancy circuit controls the control pressure input (P), even during a malfunction of the control unit (). The parking brake module () includes a control valve (), a redundancy valve () and a changeover valve () controlled by an electronic switch unit () with a holding function. When the control unit () malfunctions, the last error-free switching position of the control valve () or the redundancy valve is maintained until a operationally safe resting state is reached or the ignition system is switched off. 11561. A braking system () for a motor vehicle including a tractor vehicle with a tractor vehicle brake and a trailer vehicle () with a trailer brake () , the tractor vehicle having an ignition system for a drive engine of the tractor vehicle energized by an electrical energy accumulator of the tractor vehicle , wherein the braking system () is fluid operated , comprising:{'b': 2', '3, 'a trailer control valve () and a parking brake module () which are electrically controllable,'}{'b': 4', '6', '5', '2', '3, 'an electronic control unit () for the control of the trailer brake () of the trailer vehicle (), electrically connected to the trailer control valve () and to the parking brake module (),'}{'b': 3', '13', '1', '43', '2', '43', '2, 'the parking brake module () being fluid-connected at the input side to a pressure fluid accumulator () of the braking system () of the motor vehicle and at the output side to a control pressure input (P) of the trailer control valve () for selectively pressurizing or depressurizing the control pressure input (P) of the trailer control valve (), ...

Housing for an electropneumatic modulator for an electropneumatic brake system for a vehicle, electropneumatic modulator having a housing, and method for producing an electropneumatic modulator

A housing for an electropneumatic modulator for an electropneumatic brake system for a vehicle, includes: an electric chamber configured to receive at least one electrical and/or electronic component of the electropneumatic modulator from a first side of the housing; and a receptacle chamber which is arranged opposite the electric chamber and is configured so as to receive a relay piston and a guide device for guiding the relay piston from a second side, opposite the first side, of the housing, in which the housing is formed in one piece. Also described are a related electropneumatic modulator and a method for making the electropneumatic modulator.

ELECTRIC BRAKE SYSTEM

Disclosed is an electronic brake system. The electronic brake system includes a master cylinder connected to a reservoir in which brake fluid is stored and configured to discharge the brake fluid according to a pedal effort of a brake pedal, the master cylinder including first and second master chambers and first and second pistons provided in the master chambers; a hydraulic pressure supply device activated by an electrical signal to generate a hydraulic pressure; a hydraulic pressure control unit configured to transfer, to a plurality of wheel cylinder provided in wheels, a hydraulic pressure discharged from the hydraulic pressure supply device; first and second backup flow paths configured to connect the first and second master chambers to the hydraulic pressure control unit; and first and second cut valves configured to selectively open and close the first and second backup flow paths, wherein one or both of the first backup flow path and the second backup flow path are connected to the first or second master chamber and any one of the plurality of wheel cylinders. 1. An electronic brake system comprising:a master cylinder connected to a reservoir in which brake fluid is stored and configured to discharge the brake fluid according to a pedal effort of a brake pedal, the master cylinder including first and second master chambers and first and second pistons provided in the master chambers;a hydraulic pressure supply device activated by an electrical signal to generate a hydraulic pressure;a hydraulic pressure control unit configured to transfer, to a plurality of wheel cylinders provided in wheels, a hydraulic pressure discharged from the hydraulic pressure supply device;a first backup flow path configured to connect the first master chamber to the hydraulic pressure control unit;a second backup flow path configured to connect the second master chamber to the hydraulic pressure control unit;a first cut valve configured to selectively open and close the first ...

Bistable Solenoid Valve for a Hydraulic Brake System, Activation Method and Assembly Method for the Same, and Brake System Having a Solenoid Valve of Said Type

A bistable solenoid valve for a hydraulic brake system has a guide sleeve in which an upper immovable pole core is fixedly arranged and a closing element is displaceably arranged. The closing element is forced into a valve seat during a closing movement and lifts off from the valve seat during an opening movement, and is fixedly connected to a magnet assembly. An actuation of the movement of the closing element is performed by the magnet assembly via a coil positioned around and substantially surrounding the guide sleeve. A lower immovable pole core is fixedly arranged in the guide sleeve and the magnet assembly is positioned between the lower and the upper pole core. 1. A bistable solenoid valve for a hydraulic brake system , comprising:a guide sleeve;an upper non-moving pole core fixedly arranged in the guide sleeve;a valve seat;a closing element movably arranged in the guide sleeve and configured to enter the valve seat during a closing movement and lift out of the valve seat during an opening movement;a magnet assembly to which the closing element is fixedly connected;a coil positioned around the guide sleeve and substantially enclosing the guide sleeve, the coil configured to actuate movement of the closing element via the magnet assembly; anda lower non-moving pole core fixedly arranged in the guide sleeve, the magnet assembly positioned between the lower pole core and the upper pole core.2. The bistable solenoid valve as claimed in claim 1 , wherein the magnet assembly is molded onto the closing element.3. The bistable solenoid valve as claimed in claim 1 , wherein the magnet assembly has a first side facing the upper pole core and a second side facing the lower pole core claim 1 , the first and second sides having magnetic poles with the same polarity.4. The bistable solenoid valve as claimed in claim 1 , wherein the magnet assembly comprises two permanent magnets.5. The bistable solenoid valve as claimed in claim 4 , wherein the two permanent magnets are ...

INCREASED VEHICLE BRAKING GRADIENT

Exemplary illustrations of a method are disclosed, including determining a baseline gradient and an increased gradient for a brake application force for a vehicle. Exemplary methods may further include actuating the baseline gradient in response to a first braking event for the vehicle, and actuating the increased gradient in response to a second braking event for the vehicle. Exemplary illustrations of a vehicle may include a braking system configured to apply braking force to at least one wheel of the vehicle, and a controller. The controller may be configured to determine a baseline gradient and an increased gradient for a brake application force for a vehicle. The controller may be configured to actuate the baseline gradient in response to a first braking event for the vehicle, and actuate the increased gradient in response to a second braking event for the vehicle. 1. A method , comprising:determining a baseline gradient and an increased gradient for a brake application force for a vehicle wheel;actuating the baseline gradient in response to a first braking event for the vehicle; andactuating the increased gradient in response to a second braking event for the vehicle;wherein the baseline and increased gradients include a rate of change of one of a brake pressure, a brake clamp-force, and a brake torque.2. The method of claim 1 , further comprising determining whether the increased brake force application gradient is likely to result in a deep slip condition of an associated tire.3. The method of claim 2 , wherein actuating the baseline gradient includes determining that the increased gradient is likely to result in a deep slip condition of the associated tire.4. The method of claim 2 , wherein actuating the increased gradient includes determining that the increased gradient is not likely to result in a deep slip condition of the associated tire.5. The method of claim 1 , wherein the baseline gradient is a rate of a brake force increase associated with an ...