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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 12214. Отображено 100.
19-01-2012 дата публикации

Brake system having simultaneous or partially simultaneous pressure generation and reduction in the wheel brakes from differing wheel cylinder pressure levels

Номер: US20120013173A1
Автор: Anton V. Zanten, Christian KÖGLSPERGER, Heinz Leiber
Принадлежит: IPGATE AG

A braking system may include a brake booster, the piston-cylinder system of which is driven by an electric motor, wherein at least one working chamber of the piston-cylinder system is connected by hydraulic lines to at least two wheel brakes, a wheel brake being allocated a 2/2-way switching valve in each case and the hydraulic connection lines between the wheel brakes and the piston-cylinder system being closable, optionally separately or jointly, by means of the 2/2-way switching valves, so that a pressure can be adjusted in the wheel brakes one after the other in terms of a multiplex method and/or simultaneously, the electric motor and switching valves being activated by a control device, and in that the hydraulic connection line from the working chamber of the piston-cylinder system to the respective magnetic valve has a flow resistance RL i and each switching valve together with the hydraulic line to the wheel cylinder, has a flow resistances RV i wherein the flow resistance RL i and RV i are small such that the HZ piston speed determines the pressure reduction gradient and pressure generation gradient in each wheel brake, the flow resistance RL i being smaller than the flow resistance RV i , and in that the control device adjusts or controls the piston movement and piston speed during the pressure generation and pressure reduction as a function of the pressure-volume characteristic of the wheel brakes.

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Номер записи: 1
16-02-2012 дата публикации

Brake control system and brake control method

Номер: US20120038209A1
Автор: Takayuki Yamamoto
Принадлежит: Toyota Motor Corp

A fluid level detecting apparatus detects the level of fluid in a reservoir. When the fluid level detecting apparatus detects that the fluid level has reached a minimum fluid level, an ECU issues a warning. If, after the warning has been issued, the fluid level detecting apparatus detects that the fluid level has reached a failsafe mode operation fluid level, which is lower than the minimum fluid level, the switches a normal control mode to a failsafe mode, and performs brake control using the failsafe mode.

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Номер записи: 2
16-02-2012 дата публикации

Traction Control Device

Номер: US20120041651A1
Автор: Kazuhiro Hatake, Koji Uematsu, Yuya Kusumoto
Принадлежит: KOMATSU LTD

The invention provides a traction control device capable of ensuring a sufficient acceleration and course traceability during the turning of a vehicle irrespective of the type of driving system or a road surface condition. A traction control device of the invention includes: a control-start determiner that determines whether or not to control a braking mechanism; and a traction force estimating section that estimates a traction force between each of wheels and the road surface. The traction force estimating section includes: a control condition determining section that determines a control condition of the braking mechanism based on a result of the determination of the control-start determiner; a traction force initial value setting section that sets an initial value in accordance with a result of the determination of the control condition determining section; and a traction force modifying section that modifies the traction force based on a control deviation.

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Номер записи: 3
16-02-2012 дата публикации

Method for operating a boosted brake system of a vehicle and control device for a boosted brake system of a vehicle

Номер: US20120041662A1
Автор: Dirk Mahnkopof, Frank Kneip, Herbert Vollert
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a method for operating a brake boosted brake system of a vehicle, comprising the monitoring of a mode of operation of the brake boosted brake system with regard to agreement of a total braking torque applied to at least one wheel of the vehicle by the brake boosted brake system with a specified target total braking torque and/or with regard to a displacement of a brake medium volume of the brake boosted brake system to a force/pressure conversion element ( 22 ) of the brake boosted brake system, if a braking torque difference between the applied total braking torque and the specified target total braking torque is greater than a specified reference difference, and/or if the brake medium volume displaced to the force/pressure conversion element ( 22 ) is larger than a specified reference volume; further comprising the defining of a target boosting force change with regard to a boosting force (Fu) provided by a brake booster ( 14 ) of the brake boosted brake system, taking into account the braking torque difference and/or the displaced brake medium volume, and outputting the target boosting force change to the brake booster ( 14 ). The invention further relates to a corresponding control device for a brake boosted brake system of a vehicle.

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Номер записи: 4
23-02-2012 дата публикации

Piston Guide Element

Номер: US20120042776A1
Автор: Daniel Gosse, Michael Schuessler, Oliver Gaertner, Wolfgang Schuller
Принадлежит: ROBERT BOSCH GMBH

A piston pump, in particular a hydraulic piston pump, includes a piston movable in a piston housing and a piston guide element, arranged between the piston housing and the piston, for guiding and/or mounting the piston. The piston guide element is configured as a coating applied fixedly at least to an inner surface area of the piston housing or to an outer surface area of the piston.

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Номер записи: 5
23-02-2012 дата публикации

Slip-Controlled Hydraulic Vehicle Brake System

Номер: US20120043806A1
Автор: Johann Jungbecker, Lothar Schiel, Stefan A. Drumm, Steffen Linkenbach
Принадлежит: Continental Teves AG and Co oHG

A hydraulic vehicle brake system and method of operating same. The system includes an electrohydraulic wheel brake pressure modulation unit, a master brake cylinder ( 11 ) which has a pressure medium storage reservoir ( 12 ) for hydraulic brake fluid and which can be actuated by means of a brake pedal ( 9 ) and to which first and second brake circuits (I, II) are connected. Wheel brakes ( 3, 4, 5, 6 ) are connected to the first and second brake circuits (I, II). Each of the first and second brake circuits have a pair of inlets valves ( 14 a - d, 114 a - b ) and a pair of outlet valves ( 15 a - d, 115 a - b ) connected to the wheel brakes ( 3, 4, 5, 6 ). The outlets of the outlet valves ( 15 a - d, 115 a - b ) of each of the first and second brake circuits (I, II) are connected to one another by means of jointly used hydraulic line sections ( 16 a , 16 b ). A safety valve ( 17 a , 117 a ; 17 b , 117 b ) is provided by means of which an outflow of brake fluid medium out of the line section ( 16 a , 16 b ) via an outlet port of the safety valves ( 17 a , 117 a ; 17 b , 117 b ) can be monitored as a means of checking the leak-tightness of the outlet valve and the safety valve.

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Номер записи: 6
22-03-2012 дата публикации

Hydraulic brake system for vehicle

Номер: US20120068529A1
Автор: Hiroshi Nakaoka, Tetsuya Miyazaki
Принадлежит: Toyota Motor Corp

A system including: a liquid-pressure source device that can supply working fluid to a brake device; and an ABS valve device. The system executes a first control in which a supply pressure of the working fluid becomes a target supply pressure and a second control for making the supply pressure fall within the target range. In this system, when the valve device is not being operated, the first control is executed. When the valve device is being operated, the second control is normally operated, and when the supply pressure is higher than a threshold value, the first control is executed. Where completion of the operation of the valve device is estimated, the system performs at least one of reducing the threshold value, reducing an upper limit value of the target range, increasing an electric power supplied to a pressure-reduce linear valve during the first control when the valve device is being operated, and reducing the target supply pressure.

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Номер записи: 7
07-06-2012 дата публикации

Brake system with master cylinder, disengaged from the brake pedal, and hydraulic brake booster

Номер: US20120137674A1
Автор: Bastien Cagnac, Chris Anderson, Komi Sokou, Raynald Sprocq, Roman Winkler
Принадлежит: ROBERT BOSCH GMBH

Braking system with master cylinder ( 100 ), decoupled from the brake pedal and hydraulic brake booster ( 200 ), comprising a boost chamber ( 206 ) in which the rear of the piston ( 110 ) of the master cylinder ( 100 ) is inserted, supplied in a controlled manner by a high-pressure unit ( 300 ), supplying brake fluid under high pressure on command to the boost chamber in order to act on the piston ( 110 ) of the master cylinder ( 100 ), and an actuator chamber ( 209 ) receiving an actuator piston ( 220 ) connected to the control rod ( 230 ) of the brake pedal. A controlled hydraulic link ( 320, 321 ) connects the boost chamber ( 206 ) and the actuator chamber ( 209 ) and a further controlled hydraulic link ( 310, 311 ) connects the actuator chamber ( 209 ) to the chamber of a brake simulator ( 270 ).

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Номер записи: 8
14-06-2012 дата публикации

Cylinder device

Номер: US20120144822A1
Автор: Hiroshi Isono
Принадлежит: Toyota Motor Corp

A cylinder device is characterized in: that it selectively realizes an operation-force dependent pressurizing state where brake fluid is pressurized by operation force and a high-pressure-source-pressure dependent pressurizing state where brake fluid is pressurized depending on a pressure from a high-pressure-source device; that there are defined an inter-piston chamber in front of an input piston by an insertion of the input piston into a pressurizing piston, an input chamber in the back of a flange of the pressurizing piston at the pressure from the high pressure source device, and an opposing chamber in front of the flange; and that the cylinder device has a mechanism elastically pressurizing an reaction force chamber formed by a communication between the inter-piston and the opposing chambers, and a mechanism switching communication/not-communication state between the reaction chamber and a reservoir.

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Номер записи: 9
28-06-2012 дата публикации

Brake control device

Номер: US20120160580A1
Автор: Daisuke Nakata
Принадлежит: Toyota Motor Corp

A fluid pressure brake unit generates a friction braking force by supplying an operating fluid to a wheel cylinder provided to each wheel of a vehicle so as to press a brake pad against the wheel. A regenerative brake unit generates a regenerative braking force by electric power regeneration to a motor that drives the wheel. A battery collects electric power from the motor. A low-temperature determination unit determines that the temperature of the battery is low when the temperature of the battery is below a predetermined temperature range. A battery temperature increasing unit generates, when the temperature of the battery is determined to be low, a braking force to the vehicle by at least either a fluid pressure brake unit or a regenerative brake unit during acceleration of the vehicle by the motor or the engine.

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Номер записи: 10
12-07-2012 дата публикации

Pressure control valve arrangement having a pressure medium channel of oval cross-section

Номер: US20120175942A1
Автор: Dirk Brenner, Harald Jaehns, Jan Grebe, Jochen Weippert, Wolfgang Rohn
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A pressure control valve arrangement is described for controlling a fluid pressure in an ABS brake system of a vehicle such that, in the event of a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one associated brake cylinder can be adaptively adjusted, including: a housing in which is formed at least one pressure-medium-conducting pressure medium duct and in which is provided a diversion of the flow of the pressure medium within the pressure medium duct from a portion of the pressure medium duct leading in one direction into a portion of the pressure medium duct leading in another direction, in which the pressure medium duct is produced together with the housing by primary forming, and in which the cross section of the pressure medium duct is oval and the major dimension of the oval cross section and the central axis of the pressure medium duct are arranged in a common plane, and the minor dimension of the oval cross section is perpendicular to the plane.

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Номер записи: 11
12-07-2012 дата публикации

Pump Housing of a Motor Vehicle Hydraulic Unit with at Least One Main Cylinder Connection Opening

Номер: US20120177516A1
Автор: Alexander Bareiss, Andreas Weh, Matthias Mayr
Принадлежит: ROBERT BOSCH GMBH

In a pump housing ( 56 ) of a motor vehicle hydraulic unit which has at least one side surface ( 18 ), at least one main cylinder connection opening ( 44; 46 ), at least one pump element opening ( 28, 30 ) and a connecting line ( 58; 60 ) which connects the at least one main cylinder connection opening ( 44; 46 ) to the at least one pump element opening ( 28; 30 ) and is designed as a blind bore into the pump housing ( 56 ), the blind bore of the connecting line ( 58; 60 ) extends, according to the invention, from the at least one side surface ( 18 ) initially through the at least one pump element opening ( 28; 30 ) and subsequently into the at least one main cylinder connection opening ( 44; 46 ).

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Номер записи: 12
09-08-2012 дата публикации

Booster and brake apparatus using the same

Номер: US20120200147A1
Автор: Hiroshi Owada, Mitsuhiro Endo
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

An input rod is operated by a brake pedal to introduce the air into a variable-pressure chamber through a control valve to propel a power piston, thereby advancing a primary piston to generate a brake fluid pressure in a master cylinder. A part of the reaction force from the fluid pressure is transmitted to the input rod through a reaction member. The primary piston is provided with an idle stroke in which no fluid pressure is generated, and the reaction force to be transmitted to a plunger is limited by a reaction force adjusting spring. In the region of the idle stroke, a fluid pressure is supplied to a wheel cylinder through a fluid pressure control unit to perform regenerative cooperative control, and a reaction force from a reaction spring is applied to the input rod.

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Номер записи: 13
09-08-2012 дата публикации

Driver Assistance System for a Vehicle, in Particular Commercial Vehicle, and Method for Controlling a Brake System

Номер: US20120203438A1
Автор: Karsten Breuer, Thomas Dieckmann, Wallbaum Torsten
Принадлежит: Individual

The invention relates to a driver assistance system for a vehicle, in particular commercial vehicle, wherein the driver assistance system ( 14 ) has: a detection system which has at least one sensor ( 15 - 1, 15 - 2, 15 - 3 ) for issuing measuring signals (S 5 - 1 , S 5 - 2 , S 5 - 3 ), a control unit ( 16 ) for receiving the measuring signals (S 5 - 1 , S 5 - 2 , S 5 - 3 ) and for determining the probability of a critical situation or critical state of the vehicle ( 1 ), wherein, when a critical state or sufficient probability of a critical state is identified, the control unit ( 16 ) of the driver assistance system ( 14 ) outputs a signal (S 6 ) for priming a brake system ( 4 ) to a brake control device ( 6 ) of the brake system ( 4 ) of the vehicle ( 1 ), and wherein the control unit ( 16 ) outputs an external brake request signal (S 6 ) for initiating braking operations to the brake control device ( 6 ) of the brake system ( 4 ). According to the invention, in order to prime the brake system ( 4 ), the control unit ( 16 ) outputs an external brake request signal (S 6 ) which has a desired acceleration value signal (S 6 - 3 ) with a higher desired acceleration value (a-des) than a current actual acceleration value (a-act).

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Номер записи: 14
30-08-2012 дата публикации

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

Номер: US20120217794A1
Автор: Gerhard Wieder, Péter Holobrádi
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

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.

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Номер записи: 15
06-09-2012 дата публикации

Vehicle control device and vehicle control method

Номер: US20120226402A1
Автор: Keiichi Minamiura
Принадлежит: Toyota Motor Corp

A control device for a vehicle includes: a charge control portion that adjusts an upper limit of charging power to a battery to prevent a negative electrode potential of the battery from dropping to a lithium reference potential, based on a charge/discharge history of the battery; a braking control portion that detects a sharing ratio between hydraulic braking force by a braking device and regenerative braking force for desired braking force according to a brake pedal depression amount so that a motor generator generates a regenerative braking force within a range of the adjusted upper limit of charging power; and a setting portion that variably sets, according to the hydraulic response rate detected by the detection portion, a degree of limitation of the upper limit when restricting charging current to the battery by restricting the upper limit.

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Номер записи: 16
11-10-2012 дата публикации

Method and device for displacing and storing brake fluid for a hydraulic brake system of a vehicle

Номер: US20120255817A1
Автор: Herbert Vollert, Reinhard Weiberle
Принадлежит: ROBERT BOSCH GMBH

In a method for displacing and storing brake fluid for a hydraulic brake system of a vehicle which brake system has at least one hydraulic accumulator, at least one brake booster and at least one brake circuit, the brake booster is configured in such a manner, that even without an action of the driver, actuation of the brake booster allows a volume of brake fluid to be automatically displaced. The brake fluid is displaced into the hydraulic accumulator and stored, by automatic actuation of the brake booster, and at least a portion of the stored brake fluid is emptied by the hydraulic accumulator into the brake circuit as a function of the operating state of the brake system.

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Номер записи: 17
11-10-2012 дата публикации

Main Brake Cylinder for a Hydraulic Vehicle Brake System and Method for Operating Same

Номер: US20120256476A1
Автор: Michael Kunz
Принадлежит: ROBERT BOSCH GMBH

A main brake cylinder for a hydraulic vehicle brake system of a motor vehicle is disclosed. The main brake cylinder includes an electric motor that is operated as a generator for decelerating the motor vehicle. For service braking, pressure is applied to a brake circuit by the main brake cylinder and to another brake circuit by a hydraulic pump. In order to reduce a pedal force, a first piston has a smaller piston surface and a second piston only moves if a greater brake fluid volume is required. A preloaded hydraulic accumulator limits an increase in pressure.

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Номер записи: 18
11-10-2012 дата публикации

Brake system

Номер: US20120256477A1
Автор: Takayuki Yamamoto, Tetsuya Miyazaki
Принадлежит: Toyota Motor Corp

A brake system including: (a) a manual hydraulic pressure source; (b) a power hydraulic pressure source; (c) a high pressure generator for generating high pressure, by utilizing pressure of the power hydraulic pressure source; (d) a common passage to which first and second brake cylinders and the high pressure generator are connected; (e) a high-pressure-generator cut-off valve disposed between the common passage and the high pressure generator; (f) a first manual-pressure-source passage connecting a first individual passage and the manual hydraulic pressure source; (g) a first manual-pressure-source cut-off valve provided in the first manual-pressure-source passage; (h) a first valve provided between the second brake cylinder and a connected portion of the first individual passage which is connected to the first manual-pressure-source passage; and (i) a pressure-supply control device for controlling supply of pressure to the brake cylinders, by controlling the high-pressure-generator cut-off valve, first valve and first manual-pressure-source cut-off valve.

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Номер записи: 19
18-10-2012 дата публикации

Piston Pump for a Hydraulic Vehicle Braking System

Номер: US20120263613A1
Автор: Heiko Jahn, Marc Zimmerman, Martin Juretko, Oliver Hennig
Принадлежит: ROBERT BOSCH GMBH

A piston pump as a return pump of a slip-controlled, hydraulic vehicle braking system is disclosed. There is a mushroom-shaped shut-off body as a spring-loaded outlet valve, the shaft thereof extending through a center hole of a tubular damper piston. The shut-off body is movable transversely to the opening and closing direction thereof, so that said shut-off body aligns with a valve seat upon closing. Upon opening, the damper piston forces brake fluid out of a damping chamber in which it is housed so that an opening movement of the outlet valve is dampened.

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Номер записи: 20
07-02-2013 дата публикации

Method for operating a braking system

Номер: US20130033097A1
Автор: Gunther Buschmann, Harald Biller
Принадлежит: Individual

A system and method for operating a hydraulic braking system) for motor vehicles with an electrically controllable pressure provision device), a high-pressure accumulator, which can be connected to the pressure provision device via a hydraulic connection), in which an electrically controllable shutoff valve is arranged, wheel brakes, which can be supplied with pressure medium by means of the pressure provision device and/or the high-pressure accumulator. An electronic control and regulating unit is provided for actuating the electrically controllable pressure provision device and/or the electrically controllable shutoff valve so as to regulate the hydraulic pressure which is provided by the pressure provision device and the high-pressure accumulator If a pressure buildup is carried out by activation of the pressure provision device, the high-pressure accumulator is connected only temporarily by at least partial opening of the shutoff valve.

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Номер записи: 21
14-03-2013 дата публикации

Vehicle brake hydraulic pressure control unit and method for producing the same

Номер: US20130061947A1
Автор: Kazuhiro Ota, Naoki Yamada
Принадлежит: Nissin Kogyo Co Ltd

A vehicle brake hydraulic pressure control unit includes a base body incorporating therein a brake fluid flow path and an electromagnetic valve which is an assembled part assembled into a mounting hole portion which is formed in the base body in such a manner as to communicate with the flow path. A hole wall of the mounting hole portion has a plastically deformed portion formed by pressing the hole wall in a downward direction of the mounting hole portion. A locking groove for the plastically deformed portion to enter is formed on an outer circumferential surface of the electromagnetic valve. An outside diameter of the electromagnetic valve at an upper side of the locking groove is made smaller than an outside diameter of the electromagnetic valve at a lower side of the locking groove.

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Номер записи: 22
11-04-2013 дата публикации

Vehicle brake hydraulic control apparatus

Номер: US20130089438A1
Автор: Katsunori TANUMA
Принадлежит: Nissin Kogyo Co Ltd

A vehicle brake hydraulic control apparatus according to one embodiment includes: a suction valve; a pump; a motor for driving the pump; and a control unit controlling the suction valve and the motor through connection/disconnection of power thereto. The control unit includes: a detection module configured to detect a back electromotive voltage generated due to an inertia rotation of the motor after disconnection of power; a voltage check module configured to check whether a voltage condition is satisfied or not that the back electromotive voltage is equal to or less than a given voltage; and a time check module configured to check whether a time condition is satisfied or not that a given time has passed after the voltage condition has been satisfied. And, the control unit closes the suction valve when the time condition is satisfied.

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Номер записи: 23
25-04-2013 дата публикации

Rotary machine and pump driving apparatus

Номер: US20130101448A1
Автор: Daishi Kato, Kunihito Ando, Takahiro Naganuma, Tomoaki Kawabata, Yuki Nakamura
Принадлежит: Advics Co Ltd, Denso Corp

A rotary machine includes a rotary shaft having two driving reactive force receiving parts that are displaced in an axial direction and are applied with diametrical reactive forces having different rotation phases from driving targets as normal loads; and bearings that rotatably support the rotary shaft wherein the rotary shaft is rotated at a state where the rotary shaft is supported by the bearings to drive the driving targets via the driving reactive force receiving parts, wherein the bearings are respectively provided at both axial sides of one of the two driving reactive force receiving parts, which receives a higher normal load, and wherein a leading end side of the rotary shaft more than the other of the two driving reactive force receiving part, which receive a lower normal load lower than the higher normal load, is configured as a free end.

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Номер записи: 24
09-05-2013 дата публикации

Method and system for brake control

Номер: US20130113270A1
Автор: Moses Alexander Fridman, Ralph Wayne Cunningham, Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided to reduce a hard brake pedal feel. A brake control variable is adjusted in anticipation of a hard pedal condition to increase hydraulic brake line pressure and maintain a normal pedal feel. A pedal force is inferred from brake line pressure relative to brake booster vacuum.

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Номер записи: 25
09-05-2013 дата публикации

Brake actuating unit for actuating a motor vehicle brake system

Номер: US20130113271A1
Автор: Holger Kranlich, Holger Von Hayn, Jose Gonzalez, Jürgen Schonlau, Manfred Rüffer, Michael Haber, Milan Klimes, Thomas Sellinger, Torsten Queisser, Wolfgang Ritter
Принадлежит: Individual

Disclosed is a brake actuating unit for actuating a motor vehicle brake system of the ‘brake-by-wire’ type. The system includes a brake booster which is operable in response to the driver's wish both by a brake pedal and by an electronic control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode. A master brake cylinder connected downstream of the brake booster, a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and due to which a resetting force acting on the brake pedal can be simulated in the ‘brake-by-wire’ operating mode independently of an actuation of the brake booster, and which can be enabled in the ‘brake-by-wire’ operating mode when the force-transmitting connection between the brake pedal and the brake booster is decoupled and can be disabled outside the ‘brake-by-wire’ operating mode. The pedal travel simulator ( 2 ) is enabled and disabled by electromechanical means ( 22, 25 ), electrohydraulic means ( 40, 47 ) or pneumatically operable means ( 96 to 98 ).

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Номер записи: 26
16-05-2013 дата публикации

Piston Pump

Номер: US20130121861A1
Автор: Harald Hermann, Klaus-Peter Schmoll, Norbert Alaze, René Schepp
Принадлежит: ROBERT BOSCH GMBH

A support ring of a sealing ring of a piston pump of a slip-controlled vehicle brake system is designed with longitudinal grooves in order to prevent a pressure build-up between the sealing ring and the support ring due to slip leakage.

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Номер записи: 27
30-05-2013 дата публикации

Method for operating a brake system of a vehicle

Номер: US20130133988A1
Автор: Ian Moore, Rudolf Daniels, Thomas Svensson
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for operating a brake system of a vehicle is described. The vehicle includes a service brake having a brake master cylinder and a plurality of wheels each having a respective brake device. Upon attainment of a given measurement value, in particular in the context of a stability control procedure, a brake pressure is built up by means of the brake master cylinder at the brake devices of all wheels.

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Номер записи: 28
06-06-2013 дата публикации

Method for Setting the Play in a Hydraulic Brake System, in Particular for a Motor Vehicle

Номер: US20130140115A1
Автор: Ralph Gronau
Принадлежит: Continental Teves AG and Co oHG

A method for adjusting the brake play of a hydraulic brake system, for a motor vehicle having at least one brake caliper with a brake piston, a hydraulic pump connected with a brake caliper, and an electric motor driving the hydraulic pump. The following steps are performed: detecting a first rotational position of a pump part by a position sensor and generating a reduced pressure in the pressure chamber, which causes the piston to reset, by suction of a volume of the brake medium determined by a predefined target rotational angle of the pump part, via a suction-side hydraulic connection with the pressure chamber, By controlling the electric motor by means of a PWM signal the predefined target rotational angle of the pump part causes a rotation of the pump part into a second rotational position, wherein the controlled variable is determined depending on the deviation of the actual rotational angle, determined based on the second rotational position, from the target angle.

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Номер записи: 29
06-06-2013 дата публикации

METHOD FOR OPERATING A HYDRAULIC BRAKING SYSTEM OF A VEHICLE AND CONTROL UNIT FOR A HYDRAULIC BRAKING SYSTEM OF A VEHICLE

Номер: US20130140879A1
Автор: Kneip Frank
Принадлежит:

A method and control unit for operating a hydraulic braking system of a vehicle, including: receiving an input, provided by an on board control system, with regard to a setpoint pressure change in at least one wheel brake cylinder of the hydraulic braking system which is connected to a brake master cylinder via at least one brake circuit; displacing at least one sealing element into a sealing position with regard to at least one connecting channel of the brake master cylinder to a brake medium reservoir of the hydraulic braking system; establishing a setpoint conveying variable for at least one brake medium conveying element of the hydraulic braking system for conveying a brake medium volume between at least one storage volume of the hydraulic braking system and a storage-external volume of the at least one brake circuit, taking into consideration the received input; and activating the at least one brake medium conveying element according to the established setpoint conveying variable. 112-. (canceled)13. A method for operating a hydraulic braking system of a vehicle , comprising:receiving an input provided by an on board control system with regard to a setpoint pressure change in at least one wheel brake cylinder of the hydraulic braking system connected to a brake master cylinder via at least one brake circuit;displacing at least one sealing element into a sealing position with regard to at least one connecting channel of the brake master cylinder to a brake medium reservoir of the hydraulic braking system as a function of the input;establishing a setpoint conveying variable for at least one brake medium conveying element of the hydraulic braking system for conveying a brake medium volume between at least one storage volume of the hydraulic braking system and a storage-external volume of the at least one brake circuit taking into consideration the received input; andactivating at least one brake medium conveying element according to the established setpoint ...

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Номер записи: 30
20-06-2013 дата публикации

Method for operating a regenerative braking system of a vehicle and control unit for a regenerative braking system

Номер: US20130154343A1
Автор: Michael Kunz, Stefan Stengert
Принадлежит: ROBERT BOSCH GMBH

A method for operating a regenerative braking system includes increasing a generator braking torque and establishing a setpoint variable with regard to a brake fluid volume to be shifted from a brake master cylinder and/or at least one brake circuit to at least one storage volume, taking into account the increased generator braking torque and a predefined hydraulic efficiency characteristic curve; reducing the generator braking torque and transferring the actual brake fluid volume previously transferred to the at least one storage volume at least partially from the at least one storage volume to the at least one brake circuit; ascertaining at least one reaction variable with regard to a hydraulic reaction of the braking system; and reestablishing the hydraulic efficiency characteristic curve of the braking system, at least taking into account the at least one ascertained reaction variable. A control unit for a regenerative braking system is also described.

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Номер записи: 31
27-06-2013 дата публикации

ELECTRO-HYDRAULIC TRACTION SUPPORT

Номер: US20130160436A1
Автор: Scheibel Joerg
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

A traction control system comprises a wheel hydraulic motor and pump assembly selectively connectable to a wheel for a vehicle to provide drive to the wheel. An electronic control unit is connected to a main hydraulic control valve to control fluid flow from the main hydraulic motor and pump assembly to the wheel motor and pump assembly. A high pressure accumulator and reservoir are fluidly connected to the main hydraulic motor and pump assembly to provide pressurized fluid to the system. 1. A traction control system comprising:a wheel hydraulic motor and pump assembly selectively connectable to a wheel for a vehicle to selectively drive the wheel;a main hydraulic control valve fluidly connected to the wheel hydraulic motor and pump assembly;a main hydraulic motor and pump assembly fluidly connected to the main hydraulic motor and pump assembly;a high pressure accumulator and reservoir fluidly connected to the main hydraulic motor and pump assembly; andan electronic control unit connected to the main hydraulic control valve to control fluid flow from the main hydraulic motor and pump assembly to the wheel actuator and the wheel motor and pump assembly.2. The traction control system of claim 1 , further comprising:a clutch mountable between the wheel hydraulic motor and pump assembly and the wheel of the vehicle to selectively connect the wheel hydraulic motor and pump assembly to the wheel.3. The traction control system of claim 1 , wherein an actuator is connected to actuate the clutch to engage the clutch to connect the wheel hydraulic motor and pump assembly to the wheel of the vehicle.4. The traction control system of claim 3 , wherein the actuator is one of an electric and a hydraulic actuator.5. The traction control system of claim 1 , wherein claim 1 , the wheel hydraulic motor and pump assembly is two wheel hydraulic motor and pump assemblies each selectively connectable to a respective one of a pair of wheels for the vehicle.6. The traction control system ...

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Номер записи: 32
27-06-2013 дата публикации

Hydraulically controlled accumulator-chamber valve

Номер: US20130160883A1
Автор: Daniel Gosse, Juergen Haecker
Принадлежит: ROBERT BOSCH GMBH

A hydraulically controlled accumulator-chamber valve has a closing element and a tappet. The closing element is prestressed via a first compression spring and seals a valve seat in a valve body. The tappet reaches through a leadthrough in the valve body and is moved by an accumulator piston. The accumulator piston is loaded by a second compression spring. The tappet is moved to press the closing element out of the valve seat when there is a specified balance of forces between the spring prestressing forces and a hydraulically active force. The closing element and the tappet are configured as a single-piece component, in order to guide the tappet in the leadthrough in a longitudinally movable manner. The tappet bears against an end face of the accumulator piston during an opening movement.

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Номер записи: 33
27-06-2013 дата публикации

Brake System for Motor Vehicles

Номер: US20130162013A1
Автор: Stefan A. Drumm
Принадлежит: Continental Teves AG and Co oHG

A brake system for motor vehicles, which in a “brake by wire” mode, can be activated both by the vehicle driver and also independently of the vehicle driver, which is operated preferentially in the “brake by wire” operating mode and can be operated in a fall-back mode. A pedal force actuating element connected to a brake pedal is guided in a retaining piston forming a retaining chamber. Dividing piston devices interact with the retaining piston and connected to vehicle wheel brakes. The first dividing piston and the second dividing piston surface are formed on a first dividing piston portion and the first dividing piston surface, together with a third dividing piston surface formed on a second dividing piston portion form an intermediate chamber connected to electrohydraulic pressure generating device. A pressure modulation valve enables both a build-up of pressure in and also a discharge of pressure from the intermediate chamber.

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Номер записи: 34
04-07-2013 дата публикации

Master cylinder device

Номер: US20130167716A1
Автор: Akira Sakai, Hiroshi Ueno, Kazuya Maki, Kiyoyuki Uchida, Masaaki Uechi, Satoshi Ishida, Tatsuo Sugitani
Принадлежит: Advics Co Ltd, Toyota Motor Corp

A master cylinder device including: a housing whose front side is closed and which has a separation wall for separating the inside of the housing into a front side chamber and a rear side chamber; a pressurizing piston disposed in the front side chamber so as to define a pressurizing chamber for pressurizing the brake fluid and an input chamber into which a brake fluid from a high pressure source is introduced; an input piston disposed in the rear side chamber and moving forward by an operation force; and a transmission rod which is through the separation wall, whose proximal end portion is fixed in one of the pressurizing and input pistons, and whose distal end portion is apart from the other of the pressurizing and input pistons in a state of no forward movement.

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Номер записи: 35
15-08-2013 дата публикации

Hydraulic Assembly for a Vehicle Brake System

Номер: US20130207452A1
Автор: Boris Koeth, Leo Gilles
Принадлежит: LUCAS AUTOMOTIVE GMBH

A hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits. The hydraulic assembly comprises a pressure generator for generating a central hydraulic pressure for the brake circuits independently of the driver at least in the case of service braking initiated by the driver. Furthermore, at least one pressure adjusting device is provided for adjusting for each individual brake circuit the central hydraulic pressure that is generated by the pressure generator independently of the driver.

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Номер записи: 36
29-08-2013 дата публикации

Pressure damping device for brake system

Номер: US20130220463A1
Автор: Hyun Jun Kim, Yong Kap Kim
Принадлежит: Individual

Disclosed is a pressure damping device for a brake system. The pressure damping device is installed at the brake system having a hydraulic block provided with a first hydraulic circuit to control transfer of fluid pressures generated by a first port of a master cylinder and discharged from a first pump to a first wheel, and a second hydraulic circuit to control transfer of fluid pressures generated by a second port of the master cylinder and discharged from a second pump to a second wheel, and the hydraulic block includes a bore connecting the master cylinder with discharge outlets of the first and second pumps and formed between first and second main oil paths to communicate with the first and second main oil paths, and a pressure damping unit provided in the bore and having a volume changed according to the fluid pressures from the first and second pumps.

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Номер записи: 37
12-09-2013 дата публикации

Vehicle brake system

Номер: US20130232968A1
Автор: Kazuaki Murayama, Kunimichi Hatano, Takaaki Ohnishi
Принадлежит: Honda Motor Co Ltd

There is provided a vehicle brake system to which an electric brake actuator constituting the vehicle brake system is stably attached and in which it is possible to dispose the electric brake actuator in a power plant storage chamber in a space-efficient manner. A vehicle brake system configured by disposing, on a vehicle, an input device to which the brake operation of an operator is inputted and a motor cylinder device for generating brake fluid pressure by driving a hydraulic pressure controlling piston stored in a cylindrical cylinder main body by means of an electric motor at least in accordance with the brake operation, wherein the motor cylinder device is attached in a manner such that at least a portion of the cylinder main body overlaps with a power plant in the vehicle up and down direction; and the electric motor is disposed below the cylinder main body.

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Номер записи: 38
12-09-2013 дата публикации

Piston-cylinder device and method for conducting a hydraulic fluid under pressure to an actuating device, actuating device for a vehicle brake system, and a method for actuating an actuating device

Номер: US20130234501A1
Автор: Heinz Leiber
Принадлежит: IPGATE AG

The invention relates to a piston-cylinder device for conducting a hydraulic fluid under pressure to an actuating arrangement, in particular a brake system, having at least one piston which delimits a pressure chamber, which is connected to the actuating arrangement via a hydraulic line. Provision is made according to the invention that the hydraulic fluid is conducted to the pressure chamber under pressure by means of an additional arrangement.

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Номер записи: 39
19-09-2013 дата публикации

Integrated electronic hydraulic brake system

Номер: US20130241276A1
Автор: I Jin Yang, Seong Ho Choi, Yong Kap Kim
Принадлежит: Individual

Disclosed is an integrated electronic hydraulic brake system including an actuator having a master cylinder and a pedal simulator, an electronic stability control (ESC), and a hydraulic power unit (HPU) which are configured as a single unit. The integrated electronic hydraulic brake system may include an integrated hydraulic control unit and a power source unit, wherein the power source unit is separately provided to isolate the operational noise, and the integrated hydraulic control unit and the power source unit are connected to each other via an external pipe.

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Номер записи: 40
26-09-2013 дата публикации

Braking system and a method for braking a vehicle in the case of abrupt changes in the friction coefficient

Номер: US20130253795A1
Автор: Andreas Reize, Phillip Frueh, Rainer Brueggemann
Принадлежит: ROBERT BOSCH GMBH

A brake device is described for braking the wheels of a vehicle. The brake device includes at least one brake master cylinder, a brake booster, a wheel brake, a return pump, using which a hydraulic fluid may be pumped back from the wheel brake in the direction of brake master cylinder. A sensor system for detecting an abrupt negative change in the friction coefficient of the roadway is provided. An arrangement is provided according to which the boost of the brake booster is set to a smaller value if a braking maneuver has been detected on a roadway having an abrupt negative change in the friction coefficient than in the case of a braking maneuver on a roadway without an abrupt negative change in the friction coefficient.

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Номер записи: 41
17-10-2013 дата публикации

Vehicle brake system

Номер: US20130270895A1
Автор: Hidetoshi Kobori, Kunimichi Hatano, Naoto Ohkubo, Satoshi Matsushita, Takashi Nishioka
Принадлежит: Honda Motor Co Ltd

Upon occurrence of a change in the load versus fluid loss property, the braking force for the given brake pedal operation amount is changed so that the vehicle operator is enabled to perceive the change in the load versus fluid loss property. In a vehicle brake system comprising a motor actuated cylinder, wheel cylinders, a stroke sensor for detecting a brake pedal operation amount, a target value setting circuit for setting a target stoke of the motor actuated cylinder, and a fluid pressure compensating circuit for correcting the target stoke upon detection of a deviation between a brake fluid pressure reference value corresponding to the brake pedal operation amount and an actual brake fluid pressure in a direction to reduce the deviation, a stroke limiting circuit restricts a compensation value produced by the fluid pressure compensation circuit according to the brake pedal operation amount.

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Номер записи: 42
07-11-2013 дата публикации

Actuating device, method for operating an actuating device, and solenoid valve arrangement

Номер: US20130291535A1
Автор: Carsten Hecker, Heinz Leiber
Принадлежит: IPGATE AG

The invention relates to an actuating device, in particular for a vehicle brake, wherein hydraulic fluid is supplied to an actuator, in particular a wheel brake, from a piston-cylinder unit via a first hydraulic connection and a solenoid valve. According to the invention, it is provided that a further hydraulic connection connects the piston-cylinder unit to a hydraulic liquid container, and in that a solenoid valve device is arranged in this connection, which solenoid valve has at least two valves which are effective in different flow directions.

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Номер записи: 43
14-11-2013 дата публикации

Actuating device for a motor vehicle brake system

Номер: US20130298550A1
Автор: Heinz Leiber, Valentin Unterfrauner
Принадлежит: IPGATE AG

The invention relates to an actuating device for a vehicle brake system, comprising a first piston-cylinder unit, the at least one working space of which is to be connected to at least one wheel brake of the vehicle via at least one hydraulic line, further comprising an electromechanical drive device and an actuating device, in particular a brake pedal, and to a method for operating an actuating device for a vehicle brake system. According to the invention, the actuating device comprises a further piston-cylinder unit ( 6, 41 ), the piston ( 6 ) of which can be actuated by means of the actuating device ( 10, 5 ) and is connected to a piston of the first piston-cylinder unit ( 4 ) via a connecting device.

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Номер записи: 44
21-11-2013 дата публикации

Double internal gear wheel pump

Номер: US20130309120A1
Автор: Norbert Alaze, René Schepp
Принадлежит: ROBERT BOSCH GMBH

A double internal gear wheel pump includes two internal gear wheel pumps configured as hydraulic pumps of a hydraulic, slip-controlled vehicle braking system. The double internal gear wheel pump further includes a partition wall that is arranged between both internal gear wheel pumps. The partition wall is configured as a single-piece component of a pump housing, preferably formed by a hydraulic block of the vehicle braking system.

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Номер записи: 45
28-11-2013 дата публикации

Vehicle brake system with an electric servomotor and hydraulic reaction piston

Номер: US20130312405A1
Автор: Bastien Cagnac, Francois Gaffe, Philippe Richard
Принадлежит: ROBERT BOSCH GMBH

A brake system is described with a master cylinder actuated by a control rod connected to a plunger piston and an actuator piston acting directly on the primary piston. A hydraulic reaction piston is housed in the piston so it can be subjected to the pressure of the primary chamber and to the opposing action of a reaction spring. The plunger piston can push the reaction piston directly to push the master cylinder.

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Номер записи: 46
05-12-2013 дата публикации

Master cylinder device and hydraulic brake system using the same

Номер: US20130318964A1
Автор: Hiroshi Isono
Принадлежит: Toyota Motor Corp

A housing of a master cylinder device includes a housing member separating an interior of the housing into a front and a rear side chambers and having an opening through the housing member. A pressurizing piston includes a main body portion disposed in the front side chamber and is moved forward by a force for pressurizing the brake fluid. An input piston can move forward by an operation force. An input chamber into which a brake fluid from a high pressure source device is introduced is defined between a rear end of the main body portion of the pressurizing piston and the housing member. The input piston is fitted in the housing with seals, whereby, the input piston and the pressure receiving piston face to each other through the opening, though the input piston and the pressure receiving piston are not fitted to each other with any seal.

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Номер записи: 47
05-12-2013 дата публикации

Hydraulic block for a hydraulic unit of a slip-controlled hydraulic vehicle brake system

Номер: US20130319562A1
Автор: Andreas Weh
Принадлежит: ROBERT BOSCH GMBH

A hydraulic block for a hydraulic unit of a slip-controlled hydraulic vehicle brake system includes a row of receptacles for brake pressure buildup valves and a row of receptacles for brake pressure reduction valves arranged parallel to the row of receptacles for the brake pressure buildup valves. The hydraulic block further includes installation spaces for damper chambers arranged between the receptacles for the brake pressure buildup valves and the brake pressure reduction valves to allow space-saving accommodation of damper chambers. The installation spaces emerge at longitudinal sides of the hydraulic block and run parallel to the rows of receptacles for the brake pressure buildup valves and the brake pressure reduction valves. The installation spaces for the damper chambers viewed from a front side are arranged below the receptacles for the brake pressure buildup valves and the brake pressure reduction valves, close to a rear side of the hydraulic block.

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Номер записи: 48
12-12-2013 дата публикации

BRAKE PRESSURE COMPENSATION SYSTEM AND METHOD THEREOF

Номер: US20130332041A1
Автор: KIM Taeg Jo, RYU Seong-Yon
Принадлежит:

A brake pressure compensation method may include determining a vehicle speed, the magnitude of a negative pressure, and the pressure of a master cylinder, determining brake intention from a change in pressure of the master cylinder, and deciding a brake pressure from the amount of pressure of the master cylinder, determining the compensation amount of the brake pressure by applying the magnitude of a negative pressure of a booster, and performing brake control by compensating for a hydraulic brake pressure through an ESC module. 1. A brake pressure compensation system comprising:a sensor unit that detects a pressure of a master cylinder according to operation of a brake pedal, a vehicle speed, a booster pressure according to an intake negative pressure of an engine, and status of the engine;a control unit that determines brake intention and a brake pressure from the pressure of the master cylinder, determines compensation amount of the brake pressure in accordance with magnitude of negative pressure of the booster, and compensates for a hydraulic brake pressure through an (Electronic Stability Control) ESC; anda driving unit that controls a motor and a valve of an ESC module to compensate for the hydraulic brake pressure in response to a control signal from the control unit.2. The system of claim 1 , wherein the sensor unit includes:a vehicle speed detector that includes wheel speed sensor mounted on wheels to detect wheel speed of wheels;a master cylinder pressure detector that detects a change in pressure according to the operation of the brake pedal;a booster pressure detector that detects the negative pressure of the booster which is generated by the intake negative pressure of the engine; andan engine status detector that detects information including a displacement of an acceleration pedal, status of an intake system, altitude of area where a vehicle travels, and a driving environment.3. The system of claim 1 , wherein the control unit determines the brake ...

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Номер записи: 49
23-01-2014 дата публикации

Vehicle braking force generator

Номер: US20140020378A1
Автор: Daisuke Sakamoto, Yuki Hotani, Yuki Ito
Принадлежит: Honda Motor Co Ltd

The object of the present invention is to provide a vehicle braking force generator capable of detecting a lock failure quickly. A vehicle braking force generator includes a motor cylinder device that generates a brake hydraulic pressure according to an operation amount of a brake pedal, a motor current obtaining unit that obtains a torque current according to an electric motor, a brake hydraulic pressure obtaining unit that obtains a brake hydraulic pressure generated in a cylinder unit, a movement amount obtaining unit that obtains a movement amount of pistons to a compression direction of a brake fluid relative to the cylinder unit, and a determination unit that determines an operation state of the motor cylinder device.

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Номер записи: 50
23-01-2014 дата публикации

Braking force generator

Номер: US20140025272A1
Автор: Yuki Ito
Принадлежит: Honda Motor Co Ltd

The object of the present invention is to provide a braking force generator capable of preventing a braking force from varying, even if an ON signal of an IG switch is not transmitted. The braking force generator includes a hydraulic pressure generation unit that becomes in an operation state according to an ON state of the IG switch of a vehicle or an opening and closing operation of an opening and closing member of the vehicle and generates a braking force according to an electrical signal based on an operation amount of a driver, and a conditional stop unit that puts the hydraulic pressure generation unit in an operation stop state if an OFF state of the IG switch continues for a predetermined time after the hydraulic pressure generation unit becomes in the operation state according to the opening and closing operation of the opening and closing member.

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Номер записи: 51
30-01-2014 дата публикации

Brake System for Motor Vehicles

Номер: US20140028084A1
Автор: Hans-Jörg Feigel, Harald Biller, Marco Beisier, Peter Stauder
Принадлежит: Continental Teves AG and Co oHG

A motor vehicle brake system operable in a brake-by-wire and fallback modes. The system includes a brake pedal ( 1 ), a master cylinder ( 2 ), a reservoir ( 4 ), a travel simulator ( 3 ), an electrically controllable pressure source ( 5 ), isolation valves ( 23 a, 23 b ) pumps ( 32 a, 32 b ) and a low-pressure accumulator ( 14 a, 14 b ), an inlet valve ( 6 a - 6 d ) and an outlet valve ( 7 a - 7 d ) for each wheel brake ( 8, 9, 10, 11 ), valves ( 34 a, 34 b; 134 a, 134 b ) connected to the pumps ( 32 a, 32 b ), and a control and regulation unit ( 110, 210 ). A valve arrangement ( 23 a, 23 b ) establishes for each brake circuit (I, II) a connection from the pressure chamber ( 17, 18 ) of the master cylinder ( 2 ) to the modulator admission pressure line ( 13 a, 13 b; 113 a, 113 b ) and disconnects the connection when unenergized, the valve arrangement ( 23 a, 23 b ) preventing the pressure source ( 5 ) from being subjected to pressure from the pressure chambers ( 17, 18 ).

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Номер записи: 52
20-02-2014 дата публикации

Braking system and method for regulating a pressure of a brake medium in a braking system

Номер: US20140047829A1
Автор: Jochen Mayer
Принадлежит: ROBERT BOSCH GMBH

A braking system, in particular for a motor vehicle, including a braking force device having a brake booster for boosting a braking force and a brake pressure supply device for providing brake pressure with the aid of a brake medium, a braking device which may be acted on by pressure by the brake medium with the aid of the brake pressure supply device, and at least one sensor which is designed to detect a distance differential of a displacement means for the displacement of a volume of the brake medium of the braking force device. The braking force device is designed to ascertain the volume of brake medium to be displaced on the basis of the detected distance differential.

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Номер записи: 53
01-01-2015 дата публикации

Brake system for vehicle designed to facilitate air purging during braking

Номер: US20150001921A1
Автор: Atsushi Suzuki, Junji Ishimura, Takahiro Yamaguchi, Takashi Murayama, Yasuhiro Sasaki
Принадлежит: Denso Corp

A braking device for a vehicle is provided which is equipped with a hydraulic booster in which a hydraulic pressure chamber is formed. The hydraulic booster has a plurality of fluid flow paths which are shaped to create convective spiral flows of brake fluid to flush bubbles of air into the spiral flows of brake fluid every braking operation. The mixture of the bubbles of air and the brake fluid is then delivered to a reservoir. The bubbles of air are discharged outside the reservoir, thereby purging the hydraulic booster of air completely.

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Номер записи: 54
07-01-2021 дата публикации

ACTUATING SYSTEM FOR A VEHICLE BRAKE AND METHOD OF OPERATING THE ACTUATING SYSTEM

Номер: US20210001825A1
Автор: KOGLSPERGER Christian, LEIBER Heinz, Unterfrauner Valentin, Van Zanten Anton
Принадлежит:

The disclosure relates to an actuating system for a vehicle brake, with an actuating arrangement, in particular a brake pedal, at least one (first) piston-cylinder unit, which is connected via a hydraulic line to the vehicle brake (braking circuit) in order to supply the braking circuit with pressure medium and apply pressure to the vehicle brake, and with a drive for the piston-cylinder unit. Pressure medium can be fed to the braking circuit in controlled manner in both piston movement directions, in particular the advance stroke and the return stroke, by means of at least one, in particular stepped, piston of the piston-cylinder unit. 1. An actuating device for a vehicle brake , comprising:an actuating arrangement;at least one first pressure source arranged to be actuated using the actuating arrangement;a second pressure source having two pressure chambers and having an electromechanical drive, wherein the second pressure source is connected via a hydraulic line to at least one braking circuit to enable pressure medium to be supplied to the braking circuit and to thereby apply pressure to the vehicle brake; anda valve arrangement arranged to regulate brake pressure,wherein the second pressure source includes a double-stroke piston, and wherein the second pressure source is arranged to supply pressure medium to the at least one braking circuit in a controlled manner during both forward and return piston strokes of the double-stroke piston, andwherein the two pressure chambers of the second pressure source are connected by an interconnecting hydraulic line, in which exactly two solenoid valves are arranged.2. The actuating device according to claim 1 , wherein the exactly two solenoid valves are arranged to control pressure medium supply and pressure medium return.3. The actuating device according to claim 1 , wherein the interconnecting hydraulic line is connected to the at least one braking circuit.4. The actuating device according to claim 1 , wherein the double- ...

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Номер записи: 55
07-01-2016 дата публикации

HIGH PRESSURE ACCUMULATOR OF BRAKE SYSTEM

Номер: US20160001754A1
Автор: KIM Eun-Mi
Принадлежит:

Disclosed herein is a high pressure accumulator of a brake system capable of attenuating pressure pulsation of oil discharged from a pump. The present invention is directed to a high pressure accumulator a brake system in which a damping chamber disposed to attenuate pressure pulsation is optionally partitioned into a plurality of layers to change characteristics of a flow of brake oil so that pressure pulsation can be efficiently reduced. Therefore, it is an aspect of the present invention to provide a high pressure accumulator of a brake system in which an orifice part is integrally formed so that a processing time for installing an orifice separately and an assembling time therefor can be reduced. 1. A high pressure accumulator of a brake system disposed on a modulator block to reduce pressure pulsation of brake oil pressed by driving of a pump and pumped , the high pressure accumulator comprising:a closing member that closes one end of a bore having one opened end and is in communication with an inport through which the brake oil is introduced and an outport through which the brake oil is discharged; anda damping housing that is installed in the bore and has a damping chamber formed therein in communication with the inport and the outport,wherein an orifice part is formed integrally with the damping housing in a portion in which the brake oil is discharged through the outport, anda damping member is installed in the damping housing and partitions the damping chamber into a plurality of layers so that the partitioned plurality of layers are in communication with each other, andthe damping member comprises a body part having one opened side to partition the damping chamber into a plurality of layers and a connection hole formed in a bottom surface of the body part in communication with the adjacent damping chamber partitioned by the body part, andan inclined part is formed on the bottom surface of the body part so that the brake oil easily flows into the adjacent ...

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Номер записи: 56
05-01-2017 дата публикации

HYDRAULIC BRAKE SYSTEM AND METHOD FOR OPERATING A HYDRAULIC BRAKE SYSTEM

Номер: US20170001612A1
Автор: Bauer Urs, QUIRANT Werner, WILLMANN Karl-Heinz
Принадлежит:

A hydraulic braking system and a method for operating the hydraulic braking system. The hydraulic braking system has a first pressure generating unit and a second pressure generating unit. The first pressure generating unit is hydraulically interruptibly and uncircumventably connected to the second pressure generating unit via a first interrupting element in such a way that with the first interrupting means in a closed position, a hydraulic connection between the first and second pressure generating unit is no longer possible. 115-. (canceled)16. A hydraulic braking system , comprising:a first pressure generating unit;{'b': '2', 'a second pressure generating unit, yhe first pressure generating unit being hydraulically interruptibly and uncircumventably connected to the second pressure generating unit via a first interrupting element in such a way that with the first interrupting element in a closed position, a hydraulic connection between the first pressure generating unit and second pressure generating unit () is no longer possible.'}17. The hydraulic braking system as recited in claim 16 , wherein the second pressure generating device has at least one hydraulic connector that is in communication with the first interrupting element claim 16 , the first interrupting element being physically separated from the second pressure generating device.18. The hydraulic braking system as recited in claim 17 , wherein at least one pressure transducer is connected between the first interrupting element and the hydraulic connector.19. The hydraulic braking system as recited in claim 16 , wherein the first brake pressure generating device and the second brake pressure generating device are in hydraulic communication with a brake master cylinder.20. The hydraulic braking system as recited in claim 16 , wherein pressure is capable of being built up claim 16 , independently of the driver claim 16 , both by way of the first brake pressure generating device and by way of the second ...

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Номер записи: 57
05-01-2017 дата публикации

BRAKE DEVICE

Номер: US20170001614A1
Автор: Sakata Yasunori, YOGO Kazutoshi, YONEMURA Shuichi
Принадлежит: ADVICS CO., LTD.

A brake device is characterized by being provided with an auxiliary pressure source that accumulates a predetermined range of brake fluid pressure in an accumulator on the basis of an operation of a fluid pressure pump and that outputs the brake fluid pressure as an accumulator pressure; and an electromagnetic valve that controls blocking of communication between the fluid pressure pump and the accumulator and a main pipe line, and that transmits the accumulator pressure to a wheel cylinder when placed in communication state. 15-. (canceled)6. A brake device comprising:a brake fluid pressure control actuator having a main pipe line coupling a brake fluid pressure generating means generating a brake fluid pressure in accordance with an operation of a brake operation member with a plurality of wheel cylinders, a differential pressure control valve disposed in the main pipe line, dividing the main pipe line into a first pipe line on the brake fluid pressure generating means side and a second pipe line on the plurality of wheel cylinder sides, and generating a differential pressure to control a differential pressure between the first pipe line and the second pipe line, a motor, and a pump driven with the motor to suck/discharge a brake fluid, controlling a differential pressure between the first pipe line and the second pipe line by controlling the motor and the differential pressure control valve, and controlling a brake fluid pressure generated in the wheel cylinder;an auxiliary pressure source accumulating a brake fluid pressure within a predetermined range in an accumulator based on an operation of the fluid pressure pump to output the pressure as an accumulator pressure; andan electromagnetic valve controlling communication/cutoff between the fluid pressure pump, the accumulator, and the main pipe line to set a communication state so as to transmit the accumulator pressure to the wheel cylinder, whereinthe brake fluid pressure generating means is a hydraulic ...

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Номер записи: 58
02-01-2020 дата публикации

APPARATUS FOR CONTROLLING ANTI LOCK BRAKE SYSTEM OF ESC INTEGRATED BRAKE SYSTEM AND METHOD THEREOF

Номер: US20200001842A1
Автор: SEOL Yong Cheol
Принадлежит:

An apparatus for controlling an ABS of an ESC integrated brake system and a method thereof. The apparatus includes a main master cylinder generating hydraulic brake pressure through a piston that is moved forward/backward by an actuator that is operated when a brake pedal of a vehicle is pressed down; and a controller controlling forward/backward movement direction change of the piston by controlling a driving current that is applied to the actuator by determining whether a direction change condition according the control state of wheel pressure is satisfied, when a brake mode of the vehicle is an ABS mode and the piston has reached a predetermined direction change position for forward/backward movement direction change. 1. An apparatus for controlling an Anti-lock Brake System (ABS) of an Electronic Stability Control (ESC) integrated brake system , the apparatus comprising:a main master cylinder generating hydraulic brake pressure through a piston that is moved forward/backward by an actuator that is operated when a vehicle is in a braking status; anda controller controlling forward/backward movement direction change of the piston by controlling a driving current that is applied to the actuator by determining whether a direction change condition according the control state of wheel pressure is satisfied, when a brake mode of the vehicle is an ABS mode and the piston has reached a predetermined direction change position for forward/backward movement direction change.2. The apparatus of claim 1 , wherein the direction change condition according to the control state of wheel pressure is a condition in which wheel pressure for front wheels and rear wheels is maintained or in a pressure-decreasing control state claim 1 , or wheel pressure for the front wheels is maintained or in a pressure-decreasing control state and wheel pressure for the rear wheels is in a pressure-increasing control state.3. The apparatus of claim 2 , wherein the controller determines whether the ...

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Номер записи: 59
02-01-2020 дата публикации

METHOD FOR CONTROLLING A HYDRAULIC BRAKING SYSTEM IN A VEHICLE

Номер: US20200001843A1
Автор: Brand Mirko, Schmidt Thomas, Strehle Alfred
Принадлежит:

In a method for controlling a hydraulic braking system, in the event of a failure of a primary brake actuator system, a secondary brake actuator system is activated. 111.-. (canceled)12. A method for controlling a hydraulic braking system in a vehicle that includes a primary brake actuator system and a secondary brake actuator system for generating hydraulic brake pressure at wheel brake units at front wheels and at rear wheels of the vehicle , the method comprising:setting the brake pressure in the wheel brake units via settable inlet valves; andwhen a failure of the primary brake actuator system occurs, generating the brake pressure via the secondary brake actuator system.13. The method as recited in claim 12 , wherein the inlet valves at the rear wheels of the vehicle are closed when the inlet valves are in a deenergized state claim 12 , the method further comprising moving the inlet valves into an open position when a defined differential pressure is exceeded.14. The method as recited in claim 12 , wherein the secondary brake actuator system has a one-channel design and supplies all of the wheel brake units with the same brake pressure.15. The method as recited in claim 12 , wherein the primary brake actuator system includes an ESP system (electronic stability program) including a hydraulic pump.16. The method as recited in claim 12 , wherein the secondary brake actuator system includes an electromechanical brake booster that actuates a master brake cylinder in the braking system.17. The method as recited in claim 12 , wherein the inlet valves at the wheel brake units of the front wheels are open when deenergized.18. The method as recited in claim 12 , wherein the inlet valves at the wheel brake units of the front wheels remain in an open position when a failure occurs in the primary brake actuator system and brake pressure generation by the secondary brake actuator system.19. The method as recited in claim 12 , wherein the inlet valves at the wheel brake units ...

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Номер записи: 60
04-01-2018 дата публикации

BRAKE-BY-WIRE SYSTEM FOR A VEHICLE WITH AN ADJUSTABLE BRAKE PEDAL EMULATOR ASSEMBLY

Номер: US20180001875A1
Автор: Houtman Alan J., Kilmurray Paul A., KRUEGER ERIC E., Pennala Brandon C.
Принадлежит:

A brake pedal assembly of a brake-by-wire system of a vehicle includes a support structure, a brake pedal pivotally engaged to the support structure at a first pivot axis, and a brake pedal emulator assembly. The brake pedal emulator assembly extends between and is pivotally engaged to the brake pedal and the support structure at respective second and third pivot axis. The brake pedal emulator assembly includes a brake pedal emulator and an adjustment mechanism aligned along a centerline intersecting the second and third pivot axis. The brake pedal emulator is constructed and arranged to displace axially when the brake pedal is actuated, and the adjustment mechanism is constructed and arranged to adjust axial displacement. 1. A brake pedal assembly comprising:a support structure;a brake pedal pivotally engaged to the support structure at a first pivot axis; anda brake pedal emulator assembly extending between and pivotally engaged to the brake pedal and the support structure at respective second and third pivot axis, the brake pedal emulator assembly including a brake pedal emulator and an adjustment mechanism aligned along a centerline intersecting the second and third pivot axis, and wherein the brake pedal emulator is constructed and arranged to displace axially when the brake pedal is actuated and the adjustment mechanism is constructed and arranged to adjust axial displacement, wherein the adjustment mechanism includes a threaded rod constructed and arranged to rotate about the centerline and a carriage threadably coupled to the threaded rod for axial movement along the centerline and engaged to the brake pedal emulator.2. (canceled)3. The brake pedal assembly set forth in claim 1 , wherein the adjustment mechanism includes a base member pivotally engaged to the support structure at the third pivot axis and an electric motor engaged to the base member and configured to rotate the threaded rod.4. The brake pedal assembly set forth in claim 3 , wherein the brake ...

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Номер записи: 61
02-01-2020 дата публикации

HYDRAULIC UNIT OF ELECTRONIC CONTROL BRAKE SYSTEM

Номер: US20200001845A1
Автор: JEON In-Wook
Принадлежит:

A hydraulic unit of an electronic control brake system is disclosed. The hydraulic unit of the electronic control brake system includes a modulator block having a plurality of accommodating bores in which a plurality of valves and pressure sensors coupled to a master cylinder to control braking hydraulic pressure supplied towards vehicle wheels are installed. Passages connecting between the accommodating bores are formed in the modulator block, and the passages are formed to be divided into two layers. 1. A hydraulic unit of an electronic control brake system , which includes a modulator block having a plurality of accommodating bores in which a plurality of valves and pressure sensors coupled to a master cylinder to control braking hydraulic pressure supplied towards vehicle wheels are installed ,wherein passages connecting between the accommodating bores are formed in the modulator block, and the passages are formed to be divided into two layers.2. The hydraulic unit according to claim 1 , wherein the modulator block is formed to have two hydraulic circuits claim 1 , and the plurality of accommodating bores and the passages forming the two hydraulic circuits are formed laterally symmetric with respect to the center of the modulator block.3. The hydraulic unit according to claim 1 , the accommodating bores in which an inflow valve claim 1 , an outflow valve claim 1 , a shut-off valve claim 1 , a simulation valve claim 1 , a pressure sensor claim 1 , and a switching valve are installed are formed on one surface of the modulator block claim 1 , and the accommodating bore in which a check valve is installed are formed on the other surface of the modulator block.4. The hydraulic unit according to claim 3 , wherein the plurality of accommodating bores claim 3 , formed on one surface of the modulator block claim 3 , have the inflow valve claim 3 , the outflow valve claim 3 , the shut-off valve claim 3 , the simulation valve claim 3 , the pressure sensors claim 3 , and ...

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Номер записи: 62
03-01-2019 дата публикации

Brake fluid pressure filtering and control systems and methods

Номер: US20190001942A1
Автор: Arnold H. Spieker, Juchirl Park
Принадлежит: Veoneer Nissin Brake Systems Japan Co Ltd

A braking control system of a vehicle includes a pressure control device that regulates brake fluid flow to a brake caliper of a wheel from a brake fluid cylinder. A pressure sensor measures a pressure of the brake fluid applied to the brake caliper. A filter module filters the measured pressure based on a rotational frequency of the wheel. The filtering produces a filtered pressure of the brake fluid applied to the brake caliper. A target pressure module sets a target pressure for the brake fluid for application to the brake caliper. A difference module determines a pressure difference between the filtered pressure and the target pressure. A pressure control module actuates the pressure control device based on the pressure difference.

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Номер записи: 63
03-01-2019 дата публикации

BRAKE-BY-WIRE BRAKING SYSTEM FOR VEHICLES PROVIDED WITH HYDRAULIC FEEDBACK SIMULATOR AND METHOD OF ACTUATING A BRAKING SYSTEM FOR VEHICLES THEREOF

Номер: US20190001946A1
Автор: ALEMANNO FABIO, DOZZI FRANCESCO, FORNI Fabrizio, GALIZZI VALERIO, PAGANI Luca, SZEWCZYK BENIAMIN, UGOLINI Luca
Принадлежит: FRENI BREMBO S.P.A.

A braking system for vehicles having a processing and control unit operatively connected to a pilot pump and a motor for actuating at least one braking device. The processing and control unit being programmed so as to actuate the braking device via the motor as a function of the actuation of the pilot pump through a manual actuation device, in a “by-wire” operating condition. 18-. (canceled)9. A braking system for vehicles comprisinga pilot pump equipped with a manual actuation device, a lever and/or pedal, which is fluidically connected, through a first hydraulic conduit, to a sorbing device that simulates the actuation resistance offered by a hydraulically operated braking device, wherein along said first hydraulic conduit is arranged a first shut-off valve,a second hydraulic conduit operatively connected to at least one braking device associated with a wheel of said vehicle, said second hydraulic conduit being connected to the first hydraulic conduit through a second shut-off valve,the system comprising a processing and control unit operatively connected to the pilot pump and a motor for actuating said at least one braking device, the processing and control unit being programmed so as to actuate the braking device via the motor as a function of the actuation of the pilot pump through the manual actuation device, in a “by-wire” operating condition,in said “by-wire” operating condition, the first shut-off valve being selectively opened and the second shut-off valve being closed,whereinthe processing and control unit is programmed to oversee the operation of the braking system so as to correct the braking action requested by a user via the manual actuation device, by actuating the motor so as to avoid the locking of one or more wheels or the onset of instability of the vehicle during braking,said processing and control unit being programmed to induce on the manual actuation device at least a vibration when it corrects the braking action requested by the user,wherein ...

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Номер записи: 64
20-01-2022 дата публикации

ELECTRONIC BRAKE SYSTEM

Номер: US20220017051A1
Автор: KIM Jin Seok
Принадлежит:

Provided is an electronic brake system including, a master cylinder including a first piston connected to a pedal and a second piston configured to partition a first master chamber and a second master chamber provided in front of the first piston, a reservoir in which a braking fluid is stored, the reservoir connected to the first master chamber by a first reservoir passage, and connected the second master chamber by a second reservoir passage, a hydraulic pressure supply device configured to generate a hydraulic pressure by an electrical signal output in response to a displacement of the pedal, a first connection line configured to connect the first master chamber to a first hydraulic circuit, a second connection line configured to connect the second master chamber to a second hydraulic circuit, and a third connection line configured to connect the hydraulic pressure supply device to the reservoir, wherein a mechanical part including the reservoir and the master cylinder is installed in a first block, and an electronic part including the hydraulic pressure supply device and the first hydraulic circuit, the second hydraulic circuit is installed in a second block, and each of the first connection line, the second connection line, and the third connection line is provided to connect the first block to the second block. 1. An electronic brake system comprising:a master cylinder including a first piston connected to a pedal and a second piston configured to partition a first master chamber and a second master chamber provided in front of the first piston;a reservoir in which a braking fluid is stored, the reservoir connected to the first master chamber by a first reservoir passage, and connected the second master chamber by a second reservoir passage;a hydraulic pressure supply device configured to generate a hydraulic pressure by an electrical signal output in response to a displacement of the pedal;an electronic control unit configured to control the hydraulic ...

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Номер записи: 65
08-01-2015 дата публикации

Vehicle brake system

Номер: US20150008727A1
Автор: Kazuharu Kidera, Soichiro Ueura, Takashi Shimada
Принадлежит: Honda Motor Co Ltd

A vehicle brake system includes a slave cylinder configured to drive an electric motor and generate a brake fluid pressure by moving pistons with a ball screw shaft; normally open type master cut valves that communicate/shut off between the slave cylinder and a master cylinder; and a control unit that controls the electric motor to close the master cut valves and limit a displacement of the ball screw shaft on the basis of a reference position during operation of a VSA device.

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Номер записи: 66
12-01-2017 дата публикации

ABS UNIT ATTACHMENT STRUCTURE AND MOTORCYCLE

Номер: US20170008600A1
Автор: Kitagawa Yuji
Принадлежит: SUZUKI MOTOR CORPORATION

The invention is directed to an ABS unit attachment structure including: a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member; an ABS unit attached to a first attachment surface of the floating bracket; and a weight attached to a second attachment surface of the floating bracket, and a motorcycle including the ABS unit attachment structure. 1. An ABS unit attachment structure comprising:a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member;an ABS unit attached to a first attachment surface of the floating bracket; anda weight attached to a second attachment surface of the floating bracket.2. The ABS unit attachment structure according to claim 1 , wherein the first attachment surface and the second attachment surface are atop surface and aback surface of the floating bracket claim 1 , respectively.3. The ABS unit attachment structure according to claim 1 , wherein the weight is an exhaust valve actuator.4. The ABS unit attachment structure according to claim 2 , wherein the weight is an exhaust valve actuator.5. The ABS unit attachment structure according to claim 3 , wherein the floating bracket is fixed to the vehicle body frame so that the exhaust valve actuator is located over an exhaust valve.6. The ABS unit attachment structure according to claim 4 , wherein the floating bracket is fixed to the vehicle body frame so that the exhaust valve actuator is located over an exhaust valve.7. A motorcycle comprising the ABS unit attachment structure according to . This application claims the benefit of Japanese Patent Application JP 2015-135130, filed Jul. 6, 2015, the entire content of which is hereby incorporated by reference, the same as if set forth at length.The present invention relates to an attachment structure including an ABS unit for preventing a slide due to wheel locking and a motorcycle equipped with the attachment structure.In general, motorcycles are equipped with an ABS (antilock ...

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Номер записи: 67
14-01-2016 дата публикации

METHOD FOR BRAKING A MOTOR VEHICLE

Номер: US20160009261A1
Автор: JURKIW Tim, Svensson Thomas
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A motor vehicle braking method wherein the vehicle includes a brake operating unit generating a braking signal based on brake pedal travel. The method includes the step of measuring the vehicle deceleration and pedal position during vehicle braking and determining an actual ratio between the measured deceleration and pedal position. In addition, a target ratio is provided based on vehicle deceleration for a defined pedal position. Wherein the actual ratios compared with the target ratio and a braking adjustment is provided when the actual ratio deviates from the target ratio. 1. A motor vehicle braking method comprising:providing a brake operating unit generating a braking signal based on an actuator;determining an actual status of the operating unit based on position of the actuator;determining vehicle deceleration;determining an actual ratio based on the actual status and vehicle deceleration; andcomparing said actual ratio with a target ratio and performing a brake adjustment step if the actual ratio deviates from the target ratio.2. The method of wherein vehicle deceleration is determined using wheel revolution rate change.3. The method of where in wheel revolution rate change is determined on a wheel of a non-driven axle of a motor vehicle.4. The method of wherein vehicle deceleration is determined using motor vehicle speed change information.5. The method of wherein the step of determining an actual status includes determining the current position of the actuator along a path of actuator travel.6. The method of including the step of establishing a limit status based on the position of the actuator wherein a relationship of the actual status to a limit status is determined in a status comparison step and the brake adjustment is only carried out if the actual status has a defined relationship with the limit status.7. The method of wherein a counting signal for counting the number of braking adjustments carried out is generated in a counting signal generation ...

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Номер записи: 68
14-01-2016 дата публикации

Brake Actuation Unit

Номер: US20160009263A1
Автор: Feigel Hans-Jorg, Kurbasa Josko
Принадлежит:

A brake actuation unit (I) having a master brake cylinder () and a pressure-medium reservoir (); a pressure provision device (), having a piston () actuated by an electric motor (), wherein the piston delimits a pressure chamber (); first and second groups of electrically actuatable valves (--); and an electronic control unit (′). The electric motor has at least two independently operable drive units, each having at least one winding, for driving the electric motor. The electronic control unit has a first microcontroller () and a second microcontroller (). The first microcontroller controls () one of the drive units and the second microcontroller controls () the other of the drive units. The first and second microcontrollers control () the second group of valves. 1. A brake actuation unit for a brake-by-wire motor vehicle brake system for a motor vehicle comprising:a brake-pedal actuatable master brake cylinder having at least one master brake cylinder pressure space to which hydraulically actuatable wheel brakes of the motor vehicle can be connected, a pressure medium reservoir vessel which is assigned to the master brake cylinder,an electrically controllable pressure supply device which is formed by a hydraulic cylinder-piston arrangement having a piston actuated by an electric motor having a rotor and a stator, wherein the piston bounds a pressure space which is sealed with respect to the atmosphere by a first sealing element and which has a pressure medium connection for connecting to the wheel brakes, a first group of electrically actuatable valves for setting wheel-specific brake pressures,a second group of electrically actuatable valves for disconnecting or connecting the wheel brakes from or to the master brake cylinder or from or to the pressure supply device,an electronic control unit for activating the pressure supply device, the first group of valves, and the second group of valves, andthe hydraulic cylinder-piston arrangement configured such that after ...

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Номер записи: 69
14-01-2016 дата публикации

Vehicle brake hydraulic pressure control apparatus

Номер: US20160009265A1
Автор: Kohei AKAMINE, Masaki Koike, Takashi Kinoshita
Принадлежит: Honda Motor Co Ltd, Nissin Kogyo Co Ltd

A vehicle brake hydraulic pressure control apparatus (control apparatus 100 ), installed in a vehicle reducing a drive torque when the vehicle is at a halt, that includes vehicle holding control section 113 for performing vehicle holding control by holding a brake hydraulic pressure when the vehicle is at a halt. The vehicle holding control section 113 is configured to release the holding of the brake hydraulic pressure based on the accelerator operation of a driver when the vehicle is at a halt and, in the releasing of the holding of the brake hydraulic pressure, release the holding of the brake hydraulic pressure completely before the drive torque of the vehicle starts increasing.

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Номер записи: 70
27-01-2022 дата публикации

UTILIZATION OF BRAKES AND TRANSMISSION SYSTEM TO AFFECT STEERING OF A VEHICLE AND METHOD THEREOF

Номер: US20220024458A1
Автор: Crum Bruce E., York Michael
Принадлежит:

A method of controlling a vehicle during a braking operation includes providing a first and a second brake actuator, a brake input device, a steer input device, and a cross-drive transmission having two outputs and a controller. The method includes detecting a first output speed at the first output and a second output speed at the second output, and receiving a brake input request and a steer input request. The method also includes determining a differential output speed based on the first output speed and the second output speed, and comparing the differential output speed to a first threshold, the brake input request to a second threshold, and the steer input request to a third threshold. The method includes determining the first or the second output is locked during the braking operation, and controlling the first or the second brake actuator based on which output is determined to be locked. 1. A transmission system for a vehicle comprising:a transmission coupled to a first ground engagement mechanism of the vehicle and a second ground engagement mechanism of the vehicle that includes a first output to drive the first ground engagement mechanism and a second output to drive the second ground engagement mechanism;a first brake actuator coupled to the first output that is controllable to apply brake pressure to the first output;a second brake actuator coupled to the second output that is controllable to apply brake pressure to the second output;a first sensor coupled to the first output to detect a first output speed at the first output;a second sensor coupled to the second output to detect a second output speed at the second output;a third sensor configured to detect input at a brake input device;a fourth sensor configured to detect input at a steer input device; anda controller communicatively coupled to the first brake actuator, the second brake actuator, the first sensor, the second sensor, the third sensor, and the fourth sensor.2. The transmission system of ...

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Номер записи: 71
11-01-2018 дата публикации

SELECTIVE HIGH FLOW PRESSURE SUPPLY FOR VEHICLE STABILITY CONTROL SYSTEMS WITHOUT HIGH PRESSURE ACCUMULATORS

Номер: US20180009422A1
Автор: Hobbs John, Patterson Douglas, Robinson Rick
Принадлежит:

An electronic vehicle stability control system includes a hydraulic braking circuit having a plurality of electronically controlled valves, a plurality of pumps, a motor that operates the plurality of pumps, and a suction throttle valve that throttles flow of hydraulic fluid to at least one of the plurality of pumps. The electronic vehicle stability control system also includes a controller coupled to the hydraulic braking circuit that controls the plurality of electronically controlled valves. 1. An electronic vehicle stability control system comprising:a hydraulic braking circuit having a plurality of electronically controlled valves, a plurality of pumps, a motor that operates the plurality of pumps, and a suction throttle valve that throttles flow of hydraulic fluid to at least one of the plurality of pumps; anda controller coupled to the hydraulic braking circuit that controls the plurality of electronically controlled valves.2. The electronic vehicle stability control system of claim 1 , wherein the suction throttle valve is an electronically controlled valve.3. The electronic vehicle stability control system of claim 1 , wherein the suction throttle valve is a passively controlled valve.4. The electronic vehicle stability control system of claim 1 , wherein the plurality of pumps is two pumps claim 1 , and wherein the suction throttle valve throttles flow of hydraulic fluid to one of the two pumps.5. The electronic vehicle stability control system of claim 1 , wherein the plurality of pumps is three pumps claim 1 , and wherein the suction throttle valve throttles flow of hydraulic fluid to one of the three pumps.6. The electronic vehicle stability control system of claim 1 , wherein the plurality of pumps is three pumps claim 1 , and wherein the suction throttle valve throttles flow of hydraulic fluid to two of the three pumps.7. The electronic vehicle stability control system of claim 1 , wherein the suction throttle valve is a variable valve claim 1 , such ...

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Номер записи: 72
11-01-2018 дата публикации

PRESSURE MODULATOR FOR AN ABS SYSTEM

Номер: US20180009423A1
Автор: Lauhoff Jakob
Принадлежит:

A pressure modulator for an antilock braking system (ABS) has a housing with a hydraulic inlet and a hydraulic outlet, the hydraulic inlet and outlet interconnected via a hydraulic line; a volume accumulator arranged to be opened against a spring force of a spring element and which increases a volume of the hydraulic line during an activated anti-lock function. A linear drive is provided with a rotor bar, where a displacement movement of the rotor bar effectuates an opening of the volume accumulator. The spring element is supported at least indirectly on the housing and the rotor bar, where the spring element is disposed in the rotor bar. 1. A pressure modulator for an antilock braking system (ABS) , comprising:a housing with a hydraulic inlet and a hydraulic outlet, where the hydraulic inlet is connected to the hydraulic outlet via a hydraulic line;a volume accumulator arranged to be opened against a spring force of a spring element, where the volume accumulator increases the volume of the hydraulic line during an activated anti-lock function; anda linear drive arranged with a rotor bar, where a displacement movement of the rotor bar effectuates an opening of the volume accumulator;wherein the spring element is supported at least indirectly on the housing and the rotor bar.2. The pressure modulator according to claim 1 , wherein the spring element is disposed in the rotor bar.3. The pressure modulator according to claim 1 , further comprising a control piston that extends into the rotor bar claim 1 , is fixedly connected to the housing claim 1 , and on which the spring element is supported.4. The pressure modulator according to claim 1 , further comprising precisely one dynamic seal that acts between the rotor bar and the control piston.5. The pressure modulator according to claim 3 , wherein the control piston is designed as a hollow body.6. The pressure modulator according to claim 3 , wherein the control piston is connected to a closeable fluid outlet.7. The ...

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Номер записи: 73
11-01-2018 дата публикации

PRESSURE MODULATOR FOR AN ABS SYSTEM

Номер: US20180009424A1
Автор: Lauhoff Jakob
Принадлежит:

A pressure modulator for an ABS system includes a housing that which has a hydraulic inlet and a hydraulic outlet that are interconnected via a hydraulic line; a volume accumulator that increases a volume of the hydraulic line during an activated anti-lock function, a linear drive for opening the volume accumulator and an electronic circuit that controls the linear drive and is disposed in the housing. 1. A pressure modulator for an antilock braking system (ABS) , comprising:a housing having a hydraulic inlet and a hydraulic outlet that are interconnected via a hydraulic line;a volume accumulator for increasing a volume of the hydraulic line during an activated anti-lock function;a linear drive for opening the volume accumulator; andan electronic circuit disposed in the housing for controlling the linear drive.2. The pressure modulator according to claim 1 , further comprising a pressure sensor disposed in the housing for detecting a pressure in the volume accumulator.3. The pressure modulator according to claim 1 , wherein the electronic circuit comprises one or more of the following: an acceleration sensor claim 1 , a microprocessor and a power output stage.4. The pressure modulator according to claim 2 , wherein the pressure sensor is disposed on a printed circuit board comprising the electronic circuit.5. The pressure modulator according to claim 1 , wherein the housing includes a chamber and wherein the electronic circuit is disposed axially next to the volume accumulator in the chamber of the housing.6. The pressure modulator according to claim 1 , wherein the hydraulic line is routed through the electronic circuit.7. The pressure modulator according to claim 1 , further comprising a spring element claim 1 , wherein the linear drive comprises a rotor bar and wherein a displacement movement of the rotor bar effectuates an opening of the volume accumulator against a spring force of a spring element.8. The pressure modulator according to claim 7 , wherein the ...

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Номер записи: 74
11-01-2018 дата публикации

ACTUATOR ASSEMBLY FOR INTEGRATED DYNAMIC BRAKE APPARATUS

Номер: US20180009425A1
Автор: FEIGEL Hansjoerg
Принадлежит:

An actuator assembly for an integrated dynamic brake apparatus according to an embodiment of the present invention includes a hollow motor having a stator and a rotor spaced apart from an inner circumferential surface of the stator; a block having one side coupled to one side of the motor and in which chamber that accommodates fluid is formed; a gear unit having one side coupled and fixed to the rotor to convert rotational movement of the rotor to linear movement; a piston configured to receive the converted linear movement from the gear unit to linearly reciprocate; and an electronic control unit coupled to the other side of the block and comprising a motor position sensor configured to detect a position of the motor. 1. An actuator assembly for an integrated dynamic brake apparatus , the actuator assembly comprising:a hollow motor having a stator and a rotor spaced apart from an inner circumferential surface of the stator;a block having one side coupled to one side of the motor and in which chamber that accommodates fluid is formed;a gear unit having one side coupled and fixed to the rotor to convert rotational movement of the rotor to linear movement;a piston configured to receive the converted linear movement from the gear unit to linearly reciprocate; andan electronic control unit coupled to the other side of the block and comprising a motor position sensor configured to detect a position of the motor.2. The actuator assembly of claim 1 , wherein an actuator assembly for an integrated dynamic brake apparatus further comprises:a sensing magnet holder having one side coupled to the other side of the gear unit to rotate along with the gear unit based on the rotation of the gear unit and having a sensing magnet inserted into the other side thereof,wherein the motor position sensor detects the position of the motor based on rotation of the sensing magnet.3. The actuator assembly of claim 1 , wherein:a first hollow is formed in the motor, and a second hollow is ...

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Номер записи: 75
14-01-2021 дата публикации

BRAKE SYSTEM AND METHOD FOR BRAKING A MOTOR VEHICLE

Номер: US20210009096A1
Автор: Mahnkopf Dirk, Mehl Volker
Принадлежит:

A brake system for a motor vehicle, having a first hydraulic brake device configured to brake wheels on a first axle of the motor vehicle, a first control unit configured to control the braking operation of the wheels on the first axle; and a second hydraulic brake device configured to brake the wheels on a second axle of the motor vehicle, and a second control unit configured to control the braking operation of the wheels on the second axle. The first control unit is coupled with the second control unit via a communication channel. The first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, the first control unit furthermore being configured to transmit a data signal on the basis of the received data via the communication channel to the second control unit. 1. A brake system for a motor vehicle , comprising:a first hydraulic brake device which is configured to brake wheels on a first axle of the motor vehicle, the first hydraulic brake device including a first control unit which is configured to control a braking operation of the wheels on the first axle of the motor vehicle; anda second hydraulic brake device which is configured to brake wheels on a second axle of the motor vehicle, the second hydraulic brake device including a second control unit configured to control a braking operation of the wheels on the second axle of the motor vehicle, the first control unit being coupled with the second control unit via a communication channel;wherein the first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, and the first control unit is further configured to transmit a data signal, based on the received data, via the communication channel to the second control unit.2. The brake system as recited in claim 1 , wherein the first control unit and the second control unit are claim 1 , relative to each ...

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Номер записи: 76
14-01-2021 дата публикации

PEDAL FREE EMULATOR AND BRAKE-BY-WIRE SYSTEM

Номер: US20210009098A1
Автор: Luo Dongqiang, Reuter David Fredrick
Принадлежит:

A pedal feel emulator includes: a body; a displacement piston provided inside the body, the displacement piston being movable along an axial direction of the body, the displacement piston has a hollow part at lower part, and the hollow part is surrounded by a surrounding wall; a retainer provided fixed inside the body, the retainer being under the displacement piston; a first elastic object provided between the displacement piston and the retainer, the first elastic object being retained by the retainer; and a second elastic object provided inside the hollow part of the displacement piston, an air gap is provided between bottom surface of the second elastic object and top surface of the retainer. A brake-by-wire system including the pedal feel emulator is also disclosed herein. 1. A pedal feel emulator , comprising:a body;a displacement piston disposed in the body and movable along an axial direction, wherein, the displacement piston defines a hollow part located at a lower part and the hollow part is surrounded by a surrounding wall;a retainer disposed in the body and located under the displacement piston;a first elastic object disposed between the displacement piston and the retainer and retained by the retainer; anda second elastic object disposed inside the hollow part of the displacement piston and space from the retainer and defining an air gap extending between a bottom surface of the second elastic object and a top surface of the retainer.2. The pedal feel emulator according to wherein the surrounding wall overlaps with an upper part of a side wall of the retainer along a radial direction.3. The pedal feel emulator according to further including:a first step portion is provided on a side wall of the retainer,an outside diameter of the first step portion being larger than an inside diameter of the surrounding wall, anda distance between a bottom end of the surrounding wall and the first step portion being larger than the dimension of the air gap along the ...

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Номер записи: 77
10-01-2019 дата публикации

AUTOMATIC CONTROL BRAKING SYSTEM FOR VEHICLES

Номер: US20190009761A1
Автор: ARIENTI ROBERTO, CANTONI CARLO, ODONI ANDREA
Принадлежит: FRENI BREMBO S.P.A.

A braking system for vehicles having a master cylinder, and at least one braking device. The master cylinder has a first and a second output circuit, containing the same brake fluid. The first output circuit is intercepted by a first control valve fluidically connected to a braking simulator and to the at least one braking device so as to alternately connect the first output circuit to the braking simulator or to the at least one braking device for its actuation. The second output circuit is fluidically connected to the at least one braking device for its actuation, an automatic hydraulic actuation unit operatively connected to the master cylinder by a hydraulic actuation circuit containing an actuation fluid distinct from the brake fluid and fluidically separated from this. And, at least a processing and control unit of the system that supervises the operation of the braking systems. 116-. (canceled)17. A braking system for vehicles , comprising:a master cylinder,at least one braking device,the master cylinder being provided with a first and a second output circuit, containing the same brake fluid, wherein the first output circuit is intercepted by a first control valve fluidically connected to a braking simulator and to said at least one braking device so as to alternately connect the first output circuit to the braking simulator or to said at least one braking device for its actuation, and the second output circuit is fluidically connected to said at least one braking device for its actuation,an automatic hydraulic actuation unit operatively connected to the master cylinder by a hydraulic actuation circuit containing an actuation fluid distinct from said brake fluid and fluidically separated from it,at least one processing and control unit of the system that supervises the operation of the braking system, whereinthe master cylinder comprises a pump body that houses a first and a second float fluidically connected respectively to the first and second output ...

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Номер записи: 78
10-01-2019 дата публикации

MOTOR VEHICLE HAVING A RECUPERATIVE BRAKING MODE

Номер: US20190009762A1
Автор: RISCHBIETER Frank, SCHINELLER Leo
Принадлежит:

A hydraulic brake for a motor vehicle in which one inlet valve and one outlet valve, configured in the switchable fashion, is respectively made available for at least one wheel, wherein the inlet valve is fluidly coupled to the outlet valve downstream of the inlet valve via a brake pressure line, and wherein a hydraulic accumulator for storing hydraulic fluid is made available downstream of the outlet valve. The hydraulic accumulator is reaction-free in a recuperative braking mode. The brake pressure line is coupled to a piston of a brake lining of a friction brake of the wheel via a valve arrangement, wherein the valve arrangement has a first valve which opens only towards the piston, and a second valve which opens only towards the brake pressure line, and wherein an opening pressure of the first valve is higher than a residual pressure brought about by the hydraulic accumulator. 1. A hydraulic brake for a motor vehicle , the hydraulic brake comprising:an inlet valve; andan outlet valve,wherein the inlet valve and the outlet valve are switchable,wherein the hydraulic brake is provided for at least one wheel, a brake pressure line fluidically coupled to both the inlet valve and the outlet valve downstream of the inlet valve;', 'a hydraulic accumulator for storing hydraulic fluid provided downstream of the outlet valve,, 'wherein the hydraulic brake further comprisesa piston of a brake pad of a friction brake of the wheel being coupled to the brake pressure line via a valve arrangement, wherein the valve arrangement has a first valve which only enables a flow in the direction of the piston and a second valve which only enables a flow in the direction of the brake pressure line,wherein an opening pressure of the first valve is higher than a residual pressure brought about by the hydraulic reservoir.2. The hydraulic brake of claim 1 , further comprising a control device claim 1 , wherein claim 1 , depending on a signal signaling a recuperative braking mode claim 1 , ...

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Номер записи: 79
10-01-2019 дата публикации

AUTOMATIC CONTROL BRAKING SYSTEM FOR VEHICLES

Номер: US20190009763A1
Автор: ARIENTI ROBERTO, CANTONI CARLO, ODONI ANDREA
Принадлежит: FRENI BREMBO S.P.A.

A braking system for vehicles having a master cylinder, and at least one braking device. The master cylinder may be provided with a first and a second output circuit, containing respectively a first and second brake fluid. The first output circuit may be fluidically connected to a braking simulator and the second output circuit may be fluidically connected to the at least one braking device for its actuation. An automatic hydraulic actuation unit operatively connected to the master cylinder by a hydraulic actuation circuit traversed by an actuation fluid distinct from the first and second brake fluid may be provided. A processing and control unit of the system that supervises the operation of the braking systems may also be provided. 116-. (canceled)18. The braking system for vehicles according to claim 17 , wherein the first and second float are interconnected so that claim 17 , in a condition of automatic operation of the braking system claim 17 , a first actuating stroke of the first float is less than or equal to a second actuating stroke of the second float.19. The braking system for vehicles according to claim 17 , wherein the first float slides at least partly coaxially inside the second float.20. The braking system for vehicles according to claim 17 , wherein the first float is provided with an undercut in an actuation direction of said first and second actuating strokes claim 17 , the undercut being configured to drag with it in translation the second float so that the first actuating stroke of the first float is always less than or equal to the second actuating stroke of the second float.21. The braking system for vehicles according to claim 17 , wherein the first float has a first pump head housed so as to slide in a first delivery volume claim 17 , the second float is provided with a second pump head housed so as to slide in a second delivery volume claim 17 , said first and second delivery volumes being fluidically separate from each other.22. The ...

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Номер записи: 80
09-01-2020 дата публикации

DRIVE CONTROL APPARATUS FOR DRIVE SYSTEM OF VEHICLE

Номер: US20200010064A1
Автор: KITAGAWA Yasuhisa, KOBAYASHI Hisaaki, TAKEUCHI Yoshitomo
Принадлежит: Denso Corporation

A drive control apparatus is applied to a drive system that is mounted to a vehicle, drives wheels of the vehicle by a motor, and brakes the wheels by a brake apparatus. The drive control apparatus determines a road-surface state of a travel road of the vehicle. The drive control apparatus suppresses slipping of the vehicle by correcting a drive torque by correcting at least either of a motor torque and a brake torque. When determined that the drive torque is to be corrected, the drive control apparatus adjusts a correction amount of the drive torque by adjusting the motor torque with higher priority than the brake torque in response to be determined that the road-surface state is rough. 1. A drive control apparatus for a drive system that is mounted to a vehicle , drives wheels of the vehicle by a motor , and brakes the wheels by a brake apparatus , the drive control apparatus comprising:a road surface determining unit that determines a road-surface state of a travel road of the vehicle;a slip suppressing unit that suppresses slipping of the vehicle by correcting a drive torque that drives a drive shaft of the wheels by correcting at least either of a motor torque with which the motor drives the wheels and a brake torque with which the brake apparatus brakes the wheels; anda correction amount adjusting unit that adjusts, when the slip suppressing unit determines that the drive torque is to be corrected, a correction amount of the drive torque by adjusting the motor torque with higher priority than the brake torque in response to the road surface determining unit determining that the road-surface state is rough.2. The drive control apparatus according to claim 1 , wherein:the road surface determining unit calculates a degree of roughness of the road-surface state; andthe correction amount adjusting unit adjusts the correction amount of the drive torque based on the degree of roughness.3. The drive control apparatus according to claim 2 , wherein:the correction ...

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Номер записи: 81
03-02-2022 дата публикации

BRAKE SYSTEM INCLUDING A MASTER CYLINDER WITH AN ELASTIC PEDAL FEEL ELEMENT

Номер: US20220032889A1
Автор: CHIANG I-Che, Feigel Hans-Jorg, KUMARI Priti, TARANDEK Kristijan
Принадлежит:

A brake system comprises a reservoir; a brake pedal; a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston; a first hydraulic circuit including at least one first hydraulic wheel brake; a second hydraulic circuit including at least one second hydraulic wheel brake; and a hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode. The master cylinder further comprises a locking chamber and an elastic pedal feel element arranged in the first master chamber to be in contact with the first master piston and the second master piston for generating a pedal force when the brake pedal is operated while the second master piston is locked in the normal operating mode. 1. A brake system , comprisinga reservoir for storing a brake fluid;a brake pedal;a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston the first master piston being directly displaceable by operating the brake pedal and the second master piston being a floating piston and separating the first master chamber, which is between the first master piston and the second master piston, from the second master chamber;a first hydraulic circuit including at least one first hydraulic wheel brake;a second hydraulic circuit including at least one second hydraulic wheel brake; anda hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode of the brake system,wherein the first master chamber is hydraulically connected to the first hydraulic circuit for pressurizing the first hydraulic circuit in an emergency mode of the brake system and the second master chamber is hydraulically connected to the second ...

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Номер записи: 82
19-01-2017 дата публикации

Brake Apparatus

Номер: US20170015290A1
Автор: Asahi Watanabe, Toshiya Oosawa
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

An object of the present invention is to provide a brake apparatus capable of acquiring a stable brake performance. A brake apparatus includes a master cylinder configured to be activated according to a brake operation performed by a driver, a reservoir tank divided into at least a first chamber connected to a wheel cylinder via the master cylinder and a second chamber connected to a hydraulic source configured to increase a pressure of brake fluid and transmit the brake fluid to the wheel cylinder, a brake control unit configured to perform brake control of transmitting the brake fluid to the wheel cylinder, and a fluid level detection unit configured to detect a fluid level of the brake fluid in the reservoir tank. The brake control unit is provided so as to be able to perform first brake control of transmitting the brake fluid from the first chamber to the wheel cylinder with use of the master cylinder, thereby increasing a pressure in this wheel cylinder, and second brake control of transmitting the brake fluid in the second chamber to the wheel cylinder with use of the hydraulic source, thereby increasing a pressure in this wheel cylinder. The brake control unit switches brake control between the first brake control and the second brake control according to the fluid level detected by the fluid level detection unit.

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Номер записи: 83
19-01-2017 дата публикации

Brake Control System, Brake System, and Brake Hydraulic Pressure Generating Method

Номер: US20170015293A1
Автор: Oosawa Toshiya, Sonoda Hiroki, WATANABE Asahi, YAGASHIRA Hideaki
Принадлежит:

A system comprises: pump (hydraulic pressure source) that uses brake fluid supplied from reservoir tank (reservoir) to generate hydraulic pressure in first hydraulic line, thereby generating hydraulic pressure in wheel cylinder; piston configured to move axially in cylinder under the action of hydraulic fluid supplied from master cylinder, piston dividing cylinder into at least two chambers (positive pressure chamber and backpressure chamber); stroke simulator for generating reaction force to a driver's brake operation by moving piston; second hydraulic line provided between positive pressure chamber in stroke simulator and master cylinder; and third hydraulic chamber provided between backpressure chamber and first hydraulic chamber to transmit brake fluid from backpressure chamber to first hydraulic chamber. 1. A brake control system comprising:a hydraulic pressure source configured to use brake fluid supplied from a reservoir to generate hydraulic pressure in a first hydraulic line and apply it to a wheel cylinder;a stroke simulator comprising a piston that divides a cylinder into at least two chambers, the piston being configured to move axially in the cylinder under the action of brake fluid supplied from a master cylinder, thereby producing reaction force to a driver's brake operation;a second hydraulic line provided between one of the two chambers of the stroke simulator and the master cylinder; anda third hydraulic line provided between the other chamber of the stroke simulator and the first hydraulic line to transmit brake fluid from the other chamber into the first hydraulic line.2. A brake control system according to claim 1 , wherein the hydraulic pressure source is a pump.3. A brake control system according to claim 2 , further comprising a fourth hydraulic line branching off from the third hydraulic line and located between the other chamber of the stroke simulator and the reservoir.4. A brake control system according to claim 3 , further comprising a ...

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Номер записи: 84
21-01-2016 дата публикации

BRAKE DEVICE HAVING A TRAVEL SENSOR FOR INTEGRATED MOTOR VEHICLE BRAKE SYSTEMS

Номер: US20160016567A1
Автор: Jürgens Michael
Принадлежит:

A braking device including a travel sensor, which consists of a movable travel indicator and a sensing device for detecting a displacement or position in an actuation direction, wherein the braking device is structurally combined as a compact unit including a housed electronic control unit, a hydraulic unit, and in particular a pump unit, wherein the sensing device is integrated on or in the housed electronic control unit and the sensing device is arranged directly or indirectly on a circuit board, wherein the circuit board is either a main circuit board of the electrohydraulic device or an additional auxiliary circuit board connected to the main circuit board electrically and in particular also mechanically.

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Номер записи: 85
21-01-2016 дата публикации

BRAKE DEVICE

Номер: US20160016568A1
Автор: ISHIDA Satoshi, Suzuki Yoshinori
Принадлежит: ADVICS CO., LTD.

Both characteristics of brake fluid pressure output from an M/C with respect to an operation amount of a brake operating member, and characteristics of brake fluid pressure with respect to an operation force of the brake operating member can be varied. Adjustment dials are provided in a position that can be operated by a driver, and based on operation of the adjustment dials, F-P characteristics or St-P characteristics and St-F characteristics can be changed. In this manner, it is possible to adjust braking characteristics in accordance with a requirement of the driver. Then, by setting the operation of the adjustment dials to an adjustable range that takes into account safety of a vehicle, the driver can freely change the braking characteristics within that range in accordance with his/her own preferences. In this manner, it is possible to provide a new and comfortable driving environment for the driver. 1. A brake device characterized by comprising:a master cylinder that forms a driving hydraulic pressure chamber that drives a master piston by a supply and discharge of brake fluid, and also forms a reaction force chamber that is compressed or expanded in accordance with operation of a brake operating member;an electric pressure adjustment portion that adjusts a driving hydraulic pressure of the driving hydraulic pressure chamber by supplying the brake fluid to the inside of the driving hydraulic pressure chamber or by discharging the brake fluid from the inside of the driving hydraulic pressure chamber; anda reaction force generating portion that generates a reaction force hydraulic pressure inside the reaction force chamber in accordance with an operation amount of the brake operating member;whereinthe brake device is provided with an adjustment mechanism which, by being adjusted by a driver and controlling the electric pressure adjustment portion and the reaction force generating portion, changes at least one of F-P characteristics and St-P characteristics ...

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Номер записи: 86
21-01-2016 дата публикации

BOOSTER, RESISTANCE FORCE APPLYING APPARATUS, AND STROKE SIMULATOR

Номер: US20160016569A1
Автор: ODAIRA Atsushi, USUI Takuya
Принадлежит:

The present invention controls an electric motor according to a stroke that an input rod performs in response to an operation performed on a brake pedal, and thrusts a primary piston, thereby generating a brake hydraulic pressure in a master cylinder. The brake hydraulic pressure is fed back to the input rod via an input piston and an input plunger. The present invention applies a sliding resistance against the stroke of the input rod by pressing a frictional member of a resistance force applying mechanism against a tapering sliding portion of the input rod with the aid of a spring force of a spring member. A taper angle of the sliding portion allows the sliding resistance to change at a varying ratio according to a position of the input rod, which can lead to stable application of a desired sliding resistance.

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Номер записи: 87
21-01-2016 дата публикации

VEHICLE BRAKE SYSTEM HAVING PLUNGER POWER SOURCE

Номер: US20160016571A1
Автор: Ganzel Blaise J.
Принадлежит: KELSEY-HAYES COMPANY

A brake system includes first and second wheel brakes, a reservoir, and a brake pedal unit having a housing and a pair of output pistons slidably disposed in the housing. The output pistons generate brake actuating pressure during a manual push-through mode for actuating the first and second wheel brakes. The system further includes a plunger assembly having a housing having first and second ports, a motor driving an actuator, and a piston connected to the actuator. The piston pressurizes a first chamber when the piston is moving in a first direction to provide fluid flow out of the first port. The piston pressurizes a second chamber when the piston is moving in a second direction opposite the first direction to provide fluid flow out of the second port. The first and second ports are selectively in fluid communication with the wheel brakes.

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Номер записи: 88
21-01-2016 дата публикации

Brake Control Device

Номер: US20160016572A1
Автор: HIGASHI Toshihiko
Принадлежит: Hitachi Automotive Systems, Ltd.

Provided is a brake control device capable of preventing increases in device size and cost. A brake control device according to the present invention is arranged between a tandem master cylinder and wheel cylinders and equipped with primary and secondary brake circuit systems, only one of the brake circuit systems has not only a gate-out valve and a pump but also a brake circuit with a control valve. A master cylinder pressure in each fluid pressure chamber of the tandem master cylinder is adjusted by control of the gate-out valve, the pump and the control valve in accordance with driver's brake pedal operation.

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Номер записи: 89
17-01-2019 дата публикации

VEHICLE BRAKING DEVICE

Номер: US20190016317A1
Автор: MASUDA Yoshio, NINOYU Masaki, Okano Takahiro
Принадлежит:

A vehicle braking device performs a following control which makes an actual value of a physical quantity follow a first target value when the actual value of the physical quantity is a value outside a dead zone and a suppression control which suppresses a change of the actual value when the actual value is a value within the dead zone in order to control the physical quantity associated with the braking force to be the first target value. The vehicle braking device comprises a setting portion which sets a second target value which follows the first target value and which is smaller than the first target value, when the first target value is increasing and a control portion which performs a control to make the actual value approximate the second target value. 1. A vehicle braking device which performs a following control which makes an actual value of a physical quantity which is associated with a braking force to be applied to a vehicle wheel follow a first target value which is a target value of the physical quantity when the actual value of the physical quantity is a value outside a dead zone and a suppression control which suppresses a change of the actual value when the actual value is a value within the dead zone in order to control the physical quantity associated with the braking force to be the first target value which is the target value of the physical quantity , assuming that the dead zone is defined to be a value between a first threshold value which is smaller than the first target value and a second threshold value which is greater than the first target value , the vehicle braking device comprising:a setting portion which sets a second target value which follows the first target value and which is smaller than the first target value, when the first target value is increasing; anda control portion which performs a control to make the actual value approximate the second target value.2. The vehicle braking device according to claim 1 , wherein:the setting ...

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Номер записи: 90
17-01-2019 дата публикации

CONTROL DEVICE AND METHOD FOR OPERATING A HYDRAULIC BRAKING SYSTEM OF A VEHICLE

Номер: US20190016324A1
Автор: Wagner Jens
Принадлежит:

A control device for a vehicle hydraulic braking system, including an electronic device for transferring brake fluid into at least one wheel brake cylinder without a force transmission connection to the brake actuating element, or that is hydraulically decoupleable from the brake actuating element, with a motorized brake pressure buildup device; ascertaining whether wheel locking of at least one wheel of the vehicle that is braked with the at least one wheel brake cylinder is present or at risk; temporarily effectuating, at least at times, a counterforce on the brake actuating element acting against the actuation of the brake actuating element by the driver when it is ascertained that wheel locking is present or at risk and/or when the electronic brake force distribution function and/or the antilocking function are/is executed. Also described is a hydraulic braking system for a vehicle, and a method for operating such a braking system. 1. A control device for a hydraulic braking system of a vehicle , comprising: controlling a motorized brake pressure buildup device of the hydraulic braking system, during an actuation of a brake actuating element by a driver of the vehicle, so that brake fluid is transferable into at least one wheel brake cylinder that is configured without a force transmission connection to the brake actuating element, or is hydraulically decoupled from the brake actuating element, so that at least one brake pressure in the at least one wheel brake cylinder is increasable;', 'ascertaining whether wheel locking of at least one wheel of the vehicle that is braked with the aid of the at least one wheel brake cylinder is present or at risk; and', 'executing an electronic brake force distribution function and/or an antilocking function when it is ascertained that wheel locking is present or at risk;', 'wherein the electronic device is configured for, at least at times, temporarily effectuating a counterforce on the brake actuating element acting against ...

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Номер записи: 91
15-01-2015 дата публикации

CONTROL DEVICE AND METHOD FOR TRANSFERRING BRAKE FLUID INTO AT LEAST ONE WHEEL BRAKE CYLINDER OF A BRAKE SYSTEM OF A VEHICLE

Номер: US20150019100A1
Автор: Mayer Jochen
Принадлежит: ROBERT BOSCH GMBH

A method for transferring brake fluid into a wheel brake cylinder of a brake system of a vehicle includes: controlling a switchover valve, via which a brake circuit having the wheel brake cylinder is connected to a main brake cylinder, into a closed state; subsequently reducing a booster force of a brake force booster, which is exerted upon an adjustable piston of the main brake cylinder; controlling a high-pressure switchover valve to a partially opened state after the reduction of the booster force of the brake force booster; and sucking in brake fluid via the partially opened, high-pressure switchover valve and pumping the brake fluid into the at least one wheel brake cylinder. 112-. (canceled)13. A method for transferring brake fluid into at least one wheel brake cylinder of a brake system of a vehicle , comprising:controlling at least one switchover valve into a closed state, wherein at least one brake circuit having the at least one wheel brake cylinder is connected to a main brake cylinder of the brake system via the at least one switchover valve;reducing a booster force of a brake force booster, which is exerted upon at least one adjustable piston of the main brake cylinder, after the controlling of the at least one switchover valve into the closed state;controlling at least one high-pressure switchover valve into an at least partially opened state after the reduction of the booster force of the brake force booster, wherein the at least one brake circuit having the at least one wheel brake cylinder is connected to the main brake cylinder via the at least one high-pressure switchover valve; andsucking in brake fluid via the at least one high-pressure switchover valve which is at least partially opened, and pumping the brake fluid into the at least one wheel brake cylinder.14. The method as recited in claim 13 , wherein claim 13 , after the pumping of the brake fluid into the at least one wheel brake cylinder claim 13 , the booster force of the brake force ...

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Номер записи: 92
17-04-2014 дата публикации

METHOD AND SYSTEM FOR BRAKE CONTROL

Номер: US20140102086A1
Автор: Cunningham Ralph Wayne, FRIDMAN Moses Alexander, Pursifull Ross Dykstra
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided to reduce a hard brake pedal feel. A brake control variable is adjusted in anticipation of a hard pedal condition to increase hydraulic brake line pressure and maintain a normal pedal feel. A pedal force is inferred from brake line pressure relative to brake booster vacuum. 1. A method for improving brake pedal feel , comprising:inferring an impending hard pedal condition, before the hard pedal condition occurs, based on a brake booster vacuum relative to a hydraulic brake line pressure; andin response to the inference, increasing the hydraulic brake line pressure before the hard pedal condition arises via adjustments to a brake system component to maintain a ratio of pedal force to brake pedal displacement at less than a threshold.2. The method of wherein a vacuum level in the brake booster may is increased using vacuum from an engine intake manifold.3. The method of wherein the engine is turbocharged.4. The method of claim 3 , wherein the adjustments to the one or more brake system components are performed before the hard pedal condition occurs.5. The method of claim 3 , wherein the one or more brake system components include an electrically-actuated hydraulic brake booster pump claim 3 , and a vacuum-actuated brake booster.6. The method of claim 5 , wherein the adjustments include operating the electrically-actuated pump to increase a hydraulic brake boost pressure.7. The method of claim 5 , wherein the adjustments include operating an engine for a duration to increase the brake booster vacuum.8. The method of claim 3 , wherein the hard pedal condition includes requiring a larger pedal force for a given brake pedal displacement.9. The method of claim 3 , wherein the hard pedal condition is not inferred based on an estimated change in brake pedal position.10. A method for improving brake pedal feel in a vehicle with an engine claim 3 , comprising:boosting engine intake air via a compressor; andupon brake pedal application, ...

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Номер записи: 93
16-01-2020 дата публикации

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

Номер: US20200017089A1
Автор: Bernd Lutz, Michael Loeffler, Thomas Zander
Принадлежит: ROBERT BOSCH GMBH

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.

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Номер записи: 94
16-01-2020 дата публикации

Hydraulic pressure control unit for vehicle brake system

Номер: US20200017090A1
Автор: Shogo Miyoshi, Yoshiro Akada
Принадлежит: ROBERT BOSCH GMBH

The hydraulic pressure control unit (50) includes the plural pumps (60) used to increase a hydraulic pressure of brake fluid in each hydraulic circuit. The hydraulic pressure control unit (50) also includes a discharge channel (140) provided on discharge sides of the plural pumps (60). The discharge channel (140) includes: a merging channel (141) having a downstream end; and plural distributary channels (142) respectively communicating with the discharge sides of the pumps (60). When, of connected portions between the merging channel (141) and the distributary channels (142), the connected portion on a lowermost stream side is defined as a lowermost-stream side connected portion (143), the hydraulic pressure control unit (50) is provided with a damper unit (80) in a region on a downstream side in the merging channel (141) with the lowermost-stream side connected portion (143) being a reference, the damper unit (80) dampening the pulsation of the brake fluid discharged from each of the pumps (60).

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Номер записи: 95
21-01-2021 дата публикации

BRAKING CONTROL DEVICE

Номер: US20210016755A1
Автор: Ishida Yasuhito, Kobayashi Tatsushi, Nishiwaki Kunihiro, NOMURA Jun
Принадлежит: ADVICS CO., LTD.

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 ...

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Номер записи: 96
17-01-2019 дата публикации

Piston pump assembly for a hydraulic power vehicle braking system

Номер: US20190017502A1
Автор: Andreas Ohm, Claus Oehler
Принадлежит: ROBERT BOSCH GMBH

A piston pump assembly for a hydraulic power vehicle braking system including an electric motor, a planetary gear set, a helical gear, and a piston which is displaceable in a cylinder. To prevent the piston from rotating in the cylinder, cylinder pins are situated in grooves at an inner side of the cylinder and engage with the recesses in a flange of the piston. Due to reshaping, the grooves are closed at one end, so that the cylinder pins are axially secured.

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Номер записи: 97
22-01-2015 дата публикации

Hydraulic brake device for vehicle

Номер: US20150021977A1
Автор: Akihiko Miwa, Hiroshi Isono
Принадлежит: Advics Co Ltd, Toyota Motor Corp

A vehicle brake system includes a first fluid chamber whose volume changes corresponding to the amount of advancement and retraction of the input piston, a second fluid chamber into which hydraulic pressure from a hydraulic pressure source is introduced after adjustment in a pressure regulator, a third fluid chamber kept at the atmospheric pressure, a stroke simulator which generates a reaction force to the brake operation corresponding to a change in volume of the first fluid chamber, a master cylinder, a partition member partitioning each of the second and third fluid chambers from the first fluid chamber, first and second seal members disposed in respective fitting gaps, and an annular member having both ends abutting respective seal members. The annular member divides a space into first and second space portions whose volumes respectively increases and decreases by the same amount when the annular member moves in one axial direction.

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Номер записи: 98
28-01-2016 дата публикации

PEDAL FORCE SIMULATOR AND BRAKE SYSTEM

Номер: US20160023643A1
Автор: Reuter Uwe
Принадлежит:

A pedal force simulator for a hydraulic brake system of a vehicle has a simulator chamber and a simulator piston that can be moved along a working path within the simulator chamber. The pedal force simulator has a line arrangement by which the simulator chamber can be brought into fluid communication with a pressure chamber of a brake cylinder of the hydraulic brake system. The line arrangement has a valve arrangement, the throttling effect of which depends on the position of the simulator piston along the working path. 1. A pedal force simulator for a hydraulic brake system of a vehicle , the pedal force simulator comprising: a simulator chamber; a simulator piston that can be moved along a working path in the simulator chamber; and a line arrangement by which the simulator chamber can be brought into fluid communication with a pressure chamber of a brake cylinder of the hydraulic brake system , the line arrangement having a valve arrangement with a throttling effect that is dependent on a position of the simulator piston along the working path.2. The pedal force simulator of claim 1 , wherein the line arrangement comprises a main line and a secondary line connected in parallel with the main line claim 1 , the main line and the secondary line opening into the simulator chamber independently of one another claim 1 , the valve arrangement comprising a main valve in the main line claim 1 , and a secondary valve in the secondary line.3. The pedal force simulator of claim 2 , wherein the simulator piston is moved along the working path from an initial position with increasing deflection of a brake pedal of the brake system.4. The pedal force simulator of claim 3 , wherein the secondary line is in fluid communication with the simulator chamber when the simulator piston is in proximity to the initial position thereof claim 3 , and the fluid communication between the secondary line and the simulator chamber is blocked when the simulator piston is moved along the working ...

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Номер записи: 99
28-01-2016 дата публикации

Brake System for Motor Vehicles

Номер: US20160023644A1
Автор: Biller Harald, Feigel Hans-Jorg
Принадлежит:

A brake system for motor vehicles, having a brake master cylinder actuated by a brake pedal with at least one first pressure chamber. The brake master cylinder communicating with wheel brakes; and a hydraulic fluid storage container. A pressure balancing connection connects to the fluid storage container. A first electrically controllable pressure supply device communicating with the wheel brakes. A pressure regulating valve arrangement for regulated wheel brake pressure. A first electronic control and regulating unit actuated the first pressure supply device and the pressure regulating valve arrangement. A second electrically controllable pressure supply device connected to the brake master cylinder and having a pressure outlet connection paired with a second electronic control and regulating unit. The first and the second pressure supply device generate braking pressures independently of each other, and the pressure outlet connection is connected to the pressure balancing connection. 1. A brake system for motor vehicles with a brake master cylinder which can be actuated by a brake pedal and applying pressure to a pressure medium to wheel brakes , comprising; at least one first pressure chamber , wherein the brake master cylinder is separably connected to the wheel brakes , a pressure medium storage container assigned to the brake master cylinder , wherein the first pressure chamber of the brake master cylinder has a pressure balancing port for connecting to the pressure medium storage container , a first electrically controllable pressurization device which can be connected to the wheel brakes , a pressure regulating valve arrangement for regulating and controlling a wheel brake pressure set at a wheel brake , a first electronic control and regulating unit for controlling the first pressurization device and the pressure regulating valve arrangement , a second electrically controllable pressurization device connected to the brake master cylinder and having a ...

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Номер записи: 100