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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 14312. Отображено 100.
19-01-2012 дата публикации

Device for estimating state quantity of skid motion of vehicle

Номер: US20120016646A1
Автор: Toru Takenaka
Принадлежит: Honda Motor Co Ltd

A device for estimating the state quantity of a skid motion of a vehicle is provided with an element which finds road surface reaction force model values of respective wheels and a skid motion state quantity model value using a vehicle model including a friction characteristic model between the wheels and the road surface, an element which finds the deviation between the lateral acceleration model value generated in a predetermined position of the vehicle by the resultant force of the road surface reaction force model values and the lateral acceleration detected value indicated by the output of an actual lateral acceleration detecting means, and an element which determines, as the estimated value of the skid motion state quantity, a value obtained by adding a value obtained by passing the deviation through a filter having a high-cut characteristic to the skid motion state quantity model value.

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Номер записи: 1
03-05-2012 дата публикации

Method and system for determining a reference yaw rate for a vehicle

Номер: US20120109458A1
Автор: David M. Sidlosky
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

The method and system described herein may be used to determine a reference yaw rate (γ ref ) for a vehicle chassis control system, and may do so across a wide spectrum of vehicle operating conditions. These conditions may include, for example, when the vehicle is being driven: at low and high vehicle speeds, in forward and reverse directions, with front-, rear- and all-wheel steering systems, according to subtle and aggressive driving maneuvers, and on roads with flat or banked surfaces, to cite a few of the potential scenarios. According to an exemplary embodiment, the method and system take into account certain tire dynamics, such as the relaxation length (λ) of the tires, when estimating the reference yaw rate (γ ref ). Once an accurate reference yaw rate (γ ref ) is determined, the vehicle chassis control system may use this estimate to control one or more actuators that can influence the yaw rate of the vehicle. Some non-limiting examples of systems that may include such actuators are chassis systems, brake systems, steering systems, suspension systems, safety systems, stability control systems, traction control systems, torque control systems, or any other system that can affect the vehicle yaw rate. It is also possible for the method and system described herein to determine a reference lateral velocity (V yref ) for the vehicle as well.

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Номер записи: 2
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: 3
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: 4
02-08-2012 дата публикации

Control method and apparatus for a vehicle

Номер: US20120197506A1
Автор: Paul Beever, Timothy Reynolds
Принадлежит: Individual

In an aspect of the invention there is provided a control method for a vehicle travelling on a surface, the vehicle having a vehicle powertrain for generating and delivering power to the vehicle wheels, the method including: measuring one or more parameters associated with motion of the vehicle on the surface; comparing the or each of the measured parameters with a predetermined threshold for said measured parameter that is indicative of a level at which wheel slip of the vehicle may occur; and in circumstances in which one or more of the measured parameters exceeds the predetermined threshold, controlling the torque applied by the powertrain to the vehicle wheels to prevent wheel slip.

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Номер записи: 5
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: 6
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: 7
27-09-2012 дата публикации

Motor vehicle braking system having a hydraulically actuated service braking system and an electormechanically actuated braking system

Номер: US20120245815A1
Автор: Heinz-Anton Schneider, Jürgen Balz
Принадлежит: Continental Teves AG and Co oHG

The invention relates to a motor vehicle brake system having a hydraulically actuatable service brake system and an electromechanically actuatable brake system, including an operating element HMI, in particular for activating a parking brake function, an electronic control device (EPB-ECU) for activating an electromechanical actuator of the electromechanically actuatable brake system, and an electrohydraulic control unit (HECU) associated with a service brake and serving to control or regulate hydraulically implemented service brake functions, driving stability functions and/or braking assistance functions. It is an aim of the invention to contribute to reducing the stress on parts or components of the brake system. It is proposed that an electronically controlled hydraulic pressure conditioning process is carried out in integrated brake calipers after hydraulic actuation of the brake, it being further provided that the electromechanical brake system generates additional application forces only after the hydraulic pressure conditioning process.

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Номер записи: 8
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: 9
11-10-2012 дата публикации

System and method for aircraft braking system usage monitoring

Номер: US20120259500A1
Автор: Garrett H. DeVlieg
Принадлежит: Hydro Aire Inc

The system and method for monitoring wear of one or more aircraft parts, such as an aircraft brake, an aircraft tire, a standby system, and landing gear, utilize one or more sensors to sense a parameter of usage, and an estimate of usage of the part can be determined based upon the signal indicating the sensed value of the parameter of usage of the aircraft part. A plurality of sensors can be provided for sensing usage of a plurality of parts of the aircraft, and the estimate of usage of the part can be stored for access of the estimate by ground personnel.

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Номер записи: 10
18-10-2012 дата публикации

Vehicle systems control for improving stability

Номер: US20120265402A1
Автор: II James W. Post, William Monsma, Xiaodi Kang
Принадлежит: Honda Motor Co Ltd

Improved methods of controlling the stability of a vehicle are provided via the cooperative operation of vehicle stability control systems such as an Active Yaw Control system, Antilock Braking System, and Traction Control System. These methods use recognition of road surface information including the road friction coefficient (mu), wheel slippage, and yaw deviations. The methods then modify the settings of the active damping system and/or the distribution of drive torque, as necessary, to increase/reduce damping in the suspension and shift torque application at the wheels, thus preventing a significant shift of load in the vehicle and/or improving vehicle drivability and comfort. The adjustments of the active damping system or torque distribution temporarily override any characteristics that were pre-selected by the driver.

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Номер записи: 11
18-10-2012 дата публикации

Vehicle braking system and control method thereof

Номер: US20120265419A1
Автор: Sang Mook Kim
Принадлежит: Mando Corp

Disclosed herein is a vehicle braking system and control method. The vehicle braking control method includes detecting velocities of respective wheels provided at a vehicle, calculating a vehicle velocity based on the velocities of the respective wheels, calculating slip amounts of the respective wheels by comparing the vehicle velocity and the velocities of the respective wheels, calculating change rates of the slip amounts of the respective wheels, obtaining regenerative braking force corresponding to one of the slip amounts and the slip change rates of the respective wheels, and controlling regenerative braking using the obtained regenerative braking force.

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Номер записи: 12
10-01-2013 дата публикации

Systems and methods for monitoring and controlling tractor/trailer vehicle systems

Номер: US20130013149A1
Автор: Alan Lesesky, Bobby Ray Weant
Принадлежит: Power Talk Inc

A status of one or more subsystems positioned on one or more trailers is communicated to a tractor electrically and mechanically connected to the trailer. A spread spectrum data communications signal representing the status of a respective subsystem is superposed on the power bus. The status of the respective subsystem can then be determined from the spread spectrum data communications signal. Preferably, the status of the subsystem is indicated to an operator positioned on the tractor. A command for controlling a subsystem on a trailer can also be communicated from the tractor to the trailer over the power bus. A spread spectrum data communications signal representing the command is produced on the power bus, and the subsystem is controlled based on the spread spectrum data communications signal. Preferably, the command is received from an operator positioned in the tractor.

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Номер записи: 13
24-01-2013 дата публикации

System and method for tracking the path of a vehicle

Номер: US20130024048A1
Автор: Bertrand Gruyelle, Christophe Bouet, Jannick Auvinet, THIERRY PHILIPPE
Принадлежит: RENAULT SAS

A system for tracking a path of a motor vehicle, the system including: an instantaneous speed sensor on each wheel of front and rear axle systems; a mechanism to calculate speed loss between wheels of a single axle system; a mechanism to calculate difference between the speed losses of each axle system; and a mechanism to compare the difference with a stored threshold value. A method for tracking a path of a motor vehicle includes: calculating speed losses for wheels of front and rear axle systems; calculating speed loss difference between each front and rear axle system; and comparing the speed loss difference with a stored threshold value.

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Номер записи: 14
31-01-2013 дата публикации

Process for controlling a start-stop operation of a vehicle having a hybrid drive, and a corresponding vehicle

Номер: US20130025951A1
Автор: Eduard Hilberer
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A process for controlling a vehicle start-stop operation having a hybrid drive with an internal-combustion engine and an electric motor, a service brake with an ABS and an electric parking brake, includes: determining, monitoring and analyzing performance parameters of the vehicle, the internal-combustion engine, the electric motor, the service brake and the parking brake; automatically releasing the parking brake in the case of a starting prompt because of determined performance parameters; driving the vehicle by the electric motor for the start; starting the engine by the electric motor if the engine is switched off; driving the vehicle by the electric motor and the engine; activating a generator operation of the electric motor in the case of a braking prompt because of determined performance parameters; activating the service brake; and automatically locking the electric parking brake when the vehicle is stopped after a previously definable deceleration time.

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Номер записи: 15
31-01-2013 дата публикации

Control method and control apparatus for four-wheel drive vehicle

Номер: US20130030664A1
Автор: Akiyoshi KAKITA, Hiroto Kawano, Ryohei Shigeta, Tomohiro Nozu, Yasushi Yagi
Принадлежит: JTEKT Corp, Mazda Motor Corp

Discloses is a method of controlling a four-wheel drive vehicle equipped with a torque distribution device capable of changing a torque distribution amount for secondary driven wheels according to an input current to be applied thereto. This method comprises the steps of: applying, to the torque distribution device, a current value corresponding to a target torque distribution amount; and, performing a current changing control for increasing and reducing the input current to the torque distribution device. The step of performing a current changing control includes causing the input current to the torque distribution device to be temporarily increased to a value greater than the current value corresponding to the target torque distribution amount, and then returned to the current value corresponding to the target torque distribution amount, and repeating the temporary increasing of the input current at least at intervals of a predetermined time.

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Номер записи: 16
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: 17
07-02-2013 дата публикации

Wheel End Condition Detection

Номер: US20130035834A1
Автор: Bryan COUCH, Daniel Edward Olson
Принадлежит: Motor Coach Industries Ltd

An enhanced wheel data processing unit may analyze tire air temperature data from a tire pressure monitoring system (TPMS) and antilock brake system (ABS) wheel speed sensor fault codes from an ABS controller within a vehicle. When the enhanced wheel data processing unit determines that the tire air temperature is above a predetermined threshold for a given tire and that an ABS wheel speed sensor fault code exists for the wheel end corresponding to the same tire, the enhanced wheel data processing unit may initiate a vehicle shutdown or derate procedure. The vehicle shutdown or derate procedure may include instructions to give an operator of the vehicle a warning indicator for a predetermined time period before shutting down or derating the engine power to the vehicle.

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Номер записи: 18
07-03-2013 дата публикации

Braking System for an Off-Highway Machine Involving Electric Retarding Integrated with Service Brakes

Номер: US20130057053A1
Автор: Cameron T. Lane, Jill Trumper, Michael D. Staub, Tom N. Brooks, William J. Tate
Принадлежит: Caterpillar Inc

The disclosure describes, in one aspect, a method of braking a machine having an electric drive configuration. The electric drive configuration includes at least one electric retarding system connected to a first set of wheels. Additionally, a first friction brake system connects to the first set of wheels to provide a braking output torque. A second friction brake system connects to a second set of wheels and provides a second braking output torque. The system calculates and applies a braking ratio between the electric and friction braking systems based upon both user controls and conditions encountered.

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Номер записи: 19
11-04-2013 дата публикации

Electronic control unit configuration tool

Номер: US20130090820A1
Автор: Ron R. Stahl, Timothy J. Frashure
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

A tool for configuring a replacement electronic control unit for a vehicle is provided. The tool includes a computer storage medium having a computer program encoded thereon which may be stored on an electronic module or installed on a computing device that connects to a communications bus in the vehicle. The program includes code for accessing a first memory associated with an original electronic control unit for the vehicle, retrieving a configuration for the original electronic control unit from the first memory, associating the configuration with a vehicle identification number associated with the vehicle in a second memory remote from the vehicle and downloading the configuration from the second memory to a third memory associated with the replacement electronic control unit for the vehicle.

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Номер записи: 20
11-04-2013 дата публикации

Method and apparatus for controlling a brake system for a motor vehicle having a brake device

Номер: US20130090824A1
Автор: Bjoern-Hendrik Reinhard, Thomas Garbe
Принадлежит: Dr Ing HCF Porsche AG

A method is provided for controlling a brake system of a motor vehicle having a brake device ( 40 ) with a hydraulic brake unit ( 41 ) and a recuperation brake unit ( 42 ). The method includes calculating (S 1 ) a hydraulic brake force characteristic curve (B 2 ) of the hydraulic brake unit ( 41 ) on the basis of at least one detected characteristic of the brake system, selecting (S 2 ) a generator-based brake force characteristic curve (G 1 -G 4 ) of the recuperation brake unit ( 42 ) on the basis of a predefined criterion and as a function of the calculated hydraulic brake force characteristic curve (B 2 ), and controlling (S 3 ) the hydraulic brake unit ( 41 ) and the recuperation brake unit ( 42 ) in accordance with a detected degree of actuation of the brake pedal ( 10 ), the calculated hydraulic brake force characteristic curves (B 2 ), and the selected generator-based brake force characteristic curve (G 1 -G 4 ).

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Номер записи: 21
18-04-2013 дата публикации

Hybrid vehicles

Номер: US20130096752A1
Автор: Alex J. Severinsky, Theodore Louckes
Принадлежит: PAICE LLC

A hybrid vehicle comprises an internal combustion engine, a traction motor, a starter motor, and a battery bank, all controlled by a microprocessor in accordance with the vehicle's instantaneous torque demands so that the engine is run only under conditions of high efficiency, typically only when the load is at least equal to 30% of the engine's maximum torque output. In some embodiments, a turbocharger may be provided, activated only when the load exceeds the engine's maximum torque output for an extended period; a two-speed transmission may further be provided, to further broaden the vehicle's load range. A hybrid brake system provides regenerative braking, with mechanical braking available in the event the battery bank is fully charged, in emergencies, or at rest; a control mechanism is provided to control the brake system to provide linear brake feel under varying circumstances.

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Номер записи: 22
25-04-2013 дата публикации

Vehicle brake hydraulic pressure control apparatus and road surface friction coefficient estimating device

Номер: US20130103279A1
Автор: Kiyonori Asano
Принадлежит: Nissin Kogyo Co Ltd

One embodiment provides a vehicle brake hydraulic controller including: an antilock braking controlling module configured to perform an antilock braking control in which a brake hydraulic pressure applied to wheel brakes is reduced under the condition that a slip-related amount has reached a pressure reduction threshold value; and a turning judging module configured to judge whether a vehicle is turning based on a steering angle, wherein, when the antilock braking control is performed and in the case that the turning judging module judges that the vehicle is turning, the antilock braking controlling module performs a turning pressure reduction control so as to: change the pressure reduction threshold values to be more easily reached by the slip-related amount than at the time of straight running; and change the pressure reduction amounts to be larger than that at the time of straight running.

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Номер записи: 23
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: 24
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: 25
01-08-2013 дата публикации

Brake control apparatus

Номер: US20130197771A1
Автор: Hiroki Takeda, Tohma Yamaguchi
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

In a brake control apparatus for generating a brake hydraulic pressure using an electric motor, in order to restrain changes in vehicle deceleration with respect to an operation amount of a brake pedal when a hydraulic pressure sensor is abnormal, a controller ( 6 ) sets a target hydraulic pressure of a master cylinder ( 2 ) based on the operation amount of a brake pedal ( 11 ) detected by a stroke sensor ( 36 ), and controls an action of an electric motor ( 14 ) so that a master cylinder hydraulic pressure detected by a hydraulic pressure sensor ( 10 ) attains the target hydraulic pressure. On this occasion, a brake characteristic representing a relationship between a motor rotation position detected by a resolver ( 37 ) and the master cylinder hydraulic pressure as detected by the hydraulic pressure sensor ( 10 ) is stored and updated. When the hydraulic pressure sensor ( 10 ) is abnormal, a target motor rotation position corresponding to the target hydraulic pressure is set using the updated brake characteristic, and the action of the electric motor ( 14 ) is controlled. The electric motor ( 14 ) is controlled based on the updated brake characteristic, and hence fluctuations in the vehicle deceleration with respect to the brake operation can be suppressed and a sense of discomfort for the driver can be alleviated.

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Номер записи: 26
15-08-2013 дата публикации

Method of controlling a brake system of a vehicle

Номер: US20130211683A1
Автор: Daniel Philpott, Joseph Kay
Принадлежит: ArvinMeritor Technology LLC

A method of controlling a brake system of a vehicle. The method may include determining whether an environmental brake pad wear condition is detected that may be indicative of wear of a friction material of a brake pad assembly due to an environmental contaminant.

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Номер записи: 27
26-09-2013 дата публикации

Electromechanical braking system for an aircraft

Номер: US20130253736A1
Автор: DAVID Frank
Принадлежит: Messier Bugatti Dowty SA

The invention relates to an aircraft braking system having brakes with electromechanical braking actuators (103) adapted to press selectively against associated stacks of disks in order to generate a braking torque on associated wheels of the aircraft; at least one control module (130) receiving braking setpoints and responding by generating a braking command (121); and at least one power module (120) responding to the braking command by delivering AC power to the motors of actuators connected to the power module so that the motors develop a braking force corresponding to the braking setpoints. According to the invention, the control module includes a digital processor stage (131) and an analog processor unit (135).

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Номер записи: 28
26-09-2013 дата публикации

Regeneration control device, hybrid vehicle, regeneration control method, and computer program

Номер: US20130253742A1
Автор: Akira Sawayama, Masahiro Suzuki
Принадлежит: HINO MOTORS LTD

A regeneration control device of a hybrid vehicle detects brake fluid pressure for detecting the amount of engagement of the brakes of a hybrid vehicle, and performs a first regeneration control in a closed state of the accelerator and the brake pedal not being depressed, a second regeneration control in the closed state of the accelerator and the brake pedal being depressed, and a third regeneration control when the accelerator pedal is in the closed state and the brake fluid pressure exceeds a predetermined value are executed, wherein X (Nm/s) is set as the rate of increase of regenerative torque in the first regeneration control, Y (Nm/s) is set as the rate of increase of regenerative torque in the second regeneration control, and Z (Nm/s) is set as the rate of increase of regenerative torque in the third regeneration control, then X<Y<X is satisfied.

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Номер записи: 29
07-11-2013 дата публикации

Zone driving

Номер: US20130297140A1
Автор: Christopher Paul Urmson, Dmitri A. Dolgov, Michael Steven Montemerlo
Принадлежит: Google LLC

A roadgraph may include a graph network of information such as roads, lanes, intersections, and the connections between these features. The roadgraph may also include one or more zones associated with particular rules. The zones may include locations where driving is typically challenging such as merges, construction zones, or other obstacles. In one example, the rules may require an autonomous vehicle to alert a driver that the vehicle is approaching a zone. The vehicle may thus require a driver to take control of steering, acceleration, deceleration, etc. In another example, the zones may be designated by a driver and may be broadcast to other nearby vehicles, for example using a radio link or other network such that other vehicles may be able to observer the same rule at the same location or at least notify the other vehicle's drivers that another driver felt the location was unsafe for autonomous driving.

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Номер записи: 30
07-11-2013 дата публикации

System and method for controlling a brake system in a vehicle

Номер: US20130297164A1
Автор: Andy Chuan Hsia, Dale Scott Crombez, Scott J. Lauffer
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for controlling a brake system in a vehicle includes using a first brake pedal map when the vehicle has a first load; the first brake pedal map allows a first predetermined non-friction braking torque to be reached. The method further includes using a second brake pedal map allowing a second predetermined non-friction braking torque, lower than the first predetermined non-friction braking torque, to be reached. The second brake pedal map is used when the vehicle has a second load lower than the first load.

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Номер записи: 31
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: 32
13-02-2014 дата публикации

Abnormality determination device and method of longitudinal acceleration sensor

Номер: US20140046532A1
Автор: Kaiji Itabashi, Takashi Saito
Принадлежит: Toyota Motor Corp

The running control device and method according to the present invention are those for determining abnormality of a longitudinal acceleration sensor which detects vehicular longitudinal acceleration that is used in a vehicle running control. An integrated value of a vehicular longitudinal acceleration that is detected by the longitudinal acceleration sensor is calculated, and determination whether or not the longitudinal acceleration sensor is abnormal is conducted on the basis of the integrated value and a vehicle speed based on vehicle wheel speeds. The calculation of the integrated value is initiated when a situation where the vehicle speed based on vehicle wheel speeds is zero and the increasing rate of the detected vehicular longitudinal acceleration is equal to or larger than a reference value for the increasing rate continues for a period which is equal to or larger than a reference value for the initiation of calculation.

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Номер записи: 33
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: 34
27-02-2014 дата публикации

Apparatus for Setting Park Brakes of a Heavy Vehicle During a Failure of a Service Brakes Holding Function of the Vehicle

Номер: US20140054118A1
Автор: David W. Howell, Matthew E. ROGERS, Timothy J. Frashure, Travis G. Ramler
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

An apparatus is provided for a vehicle having components of a parking brake system and components of a service brake system. The apparatus comprises a normally-energized solenoid operatively coupled to components of the parking brake system and for, when de-energized, exhausting air pressure in at least some components of the parking brake system to set park brakes. The apparatus further comprises an electronic controller arranged to (i) monitor a combination of one or more signals indicative of a service brakes holding function, (ii) monitor a combination of one or more signals indicative of a fault condition, and (iii) provide one or more signals to de-energize the normally-energized solenoid to exhaust air pressure in at least some components of the parking brake system and thereby to set park brakes when both signals indicative of a service brakes holding function and signals indicative of a fault condition of the vehicle are detected.

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Номер записи: 35
07-01-2021 дата публикации

System and method for setting regenerative braking value

Номер: US20210001728A1
Автор: Chung Woo Lee
Принадлежит: CAMMSYS CORP

A system and method for setting a regenerative braking value are disclosed. The disclosed system may include: a first measurement unit configured to measure the displacement information of a brake pedal of an electric vehicle; a second measurement unit configured to measure the speed of the electric vehicle; a third measurement unit configured to measure the distance from the electric vehicle to an object in front of the electric vehicle; a first computation unit configured to compute the brake force required for a deceleration of the electric vehicle by inputting the displacement information and the speed into a first fuzzy logic algorithm; and a second computation unit configured to compute the regenerative braking value by applying the brake force and the distance to the object to a second fuzzy logic algorithm.

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Номер записи: 36
07-01-2021 дата публикации

Electropneumatic handbrake system for commercial vehicles with spring-loaded parking brakes

Номер: US20210001824A1
Автор: Julian van Thiel, Thomas Schmidt
Принадлежит: WABCO Europe BVBA

An electropneumatic brake system, for a commercial vehicle which is provided for pulling a trailer, includes at least one service brake circuit configured to activate service brake actuators, a parking brake circuit having parking brake actuators on at least one axle, a trailer brake circuit configured to provide a trailer brake pressure at a trailer brake pressure port, and a manually actuatable operating unit in a driver's cab. The manually actuatable operating unit has a first operating element and a second operating element. In the case of actuation of the first operating element when the vehicle is driving, the parking brake actuators are activated and a trailer brake pressure is output at the trailer brake pressure port. In the case of actuation of the second operating element when the vehicle is driving, only a trailer brake pressure is output.

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Номер записи: 37
05-01-2017 дата публикации

MOTOR VEHICLE

Номер: US20170001613A1
Автор: BROK Tobias, STEMMER MARTIN
Принадлежит: Audi AG

A motor vehicle includes a plurality of wheels and a brake system, which has brakes, which can be hydraulically actuated and are each associated with a wheel. The brakes can be actuated by at least one brake circuit which can be operated by a brake booster. The brake booster can be actuated by a brake pedal to be pressed by the driver. At least one pressure-generating and/or pressure-accumulating device, controlled by a control device to modulate the hydraulic pressure within the brake circuit. A second pressure-generating and/or pressure-accumulating device is provided in the brake circuit to automatically increase the pressure within the brake circuit in dependence on demand independently of the first pressure-generating and/or pressure-accumulating device, when a malfunction is detected in the brake system. 19.-. (canceled)10. A motor vehicle , comprising:a plurality of wheels; and hydraulically actuatable brakes operably connected to the wheels in one-to-one correspondence,', 'at least one brake circuit configured for actuation of the brakes,', 'a brake booster operably connected to the brake circuit and actuated by a driver through actuation of a brake pedal,', 'a first member selected from the group consisting of a pressure generating device and a pressure storage device, said first member being configured for modulation of hydraulic pressure within the brake circuit,', 'a control device configured to control the first member, and', 'a second member selected from the group consisting of a pressure generating device and a pressure storage device and disposed in the brake circuit, said second member being configured to automatically increase pressure inside of the brake circuit independently of the first member, when a malfunction is detected in the brake system., 'a braking system including;'}11. The motor vehicle of claim 10 , further comprising a switchable valve claim 10 , said second member being coupled to the brake circuit via the switchable valve and ...

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Номер записи: 38
05-01-2017 дата публикации

CALIBRATION METHOD FOR AN ELECTRO-HYDRAULIC MOTOR VEHICLE BRAKING SYSTEM AND ASSOCIATED CALIBRATION DEVICE

Номер: US20170001615A1
Автор: ADLER Vanessa, Naether Niko, Schaust Karlheinz, Schlafke Kay
Принадлежит: LUCAS AUTOMOTIVE GMBH

A calibration method is specified for an electro-hydraulic motor vehicle brake system. The brake system comprises a piston for building up a hydraulic pressure in the brake system, a first actuator having an electric motor, and a second actuator having a brake pedal interface. The first actuator and the second actuator are both capable of activating the piston, wherein a first sensor system detects a change in state of the first actuator, and a second sensor system detects a change in state of the second actuator. The calibration method starts with actuation of the electric motor, in order to activate the piston by means of the first actuator, wherein the second actuator follows the piston activation. During the piston activation, a first signal which is generated by the first sensor system and which permits a conclusion to be drawn about an extent of the piston activation, as well as a second signal which is generated by the second sensor system are detected. Subsequently, the first signal is calibrated on the basis of the second signal, or vice versa. 1. A calibration method for an electro-hydraulic motor vehicle brake system which comprises a piston for building up a hydraulic pressure in the brake system , a first actuator having an electric motor and a second actuator having a brake pedal interface , wherein the first actuator and the second actuator are capable of activating the piston , and wherein a first sensor system is capable of detecting a change in state of the first actuator , and a second sensor system is capable of detecting a change in state of the second actuator , the method comprising:actuating the electric motor in order to activate the piston by means of the first actuator, wherein the second actuator follows the piston activation; 'calibrating the first signal on the basis of the second signal, or vice versa.', 'detecting, during the piston activation, a first signal which is generated by the first sensor system and permits a conclusion to be ...

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Номер записи: 39
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: 40
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: 41
02-01-2020 дата публикации

METHOD FOR OPERATING A BRAKING SYSTEM AND BRAKING SYSTEM

Номер: US20200001846A1
Автор: Kohl Andreas, Wickenhöfer Thorsten
Принадлежит: Continental Teves AG & Co. oHG

A braking system for vehicles includes wheel brakes, a pressure-providing device for actuating the wheel brakes, a master brake cylinder having a primary pressure chamber, a secondary pressure chamber, and a secondary piston. The primary pressure chamber is separated from a first set of the wheel brakes by a first, normally open separating valve, and the secondary pressure chamber is separated from a second set of the wheel brakes by a second, normally open separating valve. A pressure medium reservoir is connected to the secondary pressure chamber in the unactuated state of the secondary piston, the braking system is activated in order to actively build up pressure in the brakes in a by-wire operating mode by the pressure-providing device. In the event of a pressure medium surplus in the wheel brakes, the second separating valve is opened if a release of the brake pedal by the driver is detected. 1. A braking system for motor vehicles , comprising:hydraulically actuatable wheel brakes;an electrically controllable pressure-providing device for hydraulically actuating the wheel brakes, the controllable pressure-providing device having a cylinder-piston arrangement with a hydraulic pressure chamber, controllable pressure-providing device having a pressure piston displaceable by an electric motor and a rotation-translation gear mechanism;an actuating device actuatable by a brake pedal, the actuating device including a tandem master brake cylinder with a primary pressure chamber, into which a primary piston is pushed on actuation of a brake pedal, and a secondary pressure chamber and a floatingly mounted secondary piston, wherein the primary pressure chamber can be hydraulically separated from a first set of the wheel brakes a first, normally open separating valve, and wherein the secondary pressure chamber can be hydraulically separated from a second set of the wheel brakes by a second, normally open separating valve;a pressure medium reservoir under atmospheric ...

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Номер записи: 42
02-01-2020 дата публикации

Braking System For a Dual Landing Gear Aircraft

Номер: US20200001984A1
Автор: David T. Yamamoto, Taylor R. Hubbard
Принадлежит: Boeing Co

A braking system for use with a dual landing gear aircraft. The braking system pairs outboard brake control into an outboard brake system control unit (BSCU) and inboard brake control into a second inboard brake system control unit (BSCU). Each BSCU is designed with two independent control lanes in which the forward wheel set is paired in one control lane and the aft wheels are paired onto the other. Alternate braking is provided via an alternate brake module installed in a fore-aft wheel pairing.

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Номер записи: 43
03-01-2019 дата публикации

SYSTEM AND METHOD FOR SENSING PEDAL ROD TO PISTON ROD GAP IN A BRAKE BOOST ASSIST SYSTEM OF A MASTER CYLINDER

Номер: US20190001940A1
Автор: Ozsoylu Suat Ali, ROBERTS Curt M.
Принадлежит:

A brake boost assist system for use with a master cylinder of a motor vehicle braking system, includes an inductive sensing system. The inductive sensing system has sensing devices carried on an input member and an output member, where the input and output members are coupled to respective ones of an input rod and an output rod of the brake boost assist system. Movement of the input and output members relative to one another, and relative to a fixed element of the inductive sensing system positioned within the brake boost assist system, enables an accurate estimation of the distance of a pedal gap which separates faces of the input and output rods. The accurate estimation of the pedal gap distance enables a more accurate determination to be made of the braking force required for any given pedal stroke input by an operator of the vehicle during a braking action. 1. A brake boost assist system for use with a master cylinder of a motor vehicle braking system , the brake boost assist system comprising: a fixed sensing component fixedly disposed within the brake boost assist system;', 'an axially movable input member operably associated with an input rod, the input rod in turn associated with a brake pedal of the vehicle, the input member movable in response to movement of the input rod and further being movable in proximity to the fixed sensing component, the axially movable input member including a first sensing device;', 'an output member generally axially aligned with the input member and adapted to be moved axially by the input member, the output member being operably associated with an output rod of the brake boost assist system and including a second sensing device;', 'the first and second sensing devices arranged to simulate an axial pedal gap separating faces of the input and output rods; and', 'wherein the inductive sensing system is responsive to movement of at least one of the input and output members relative to the other to provide an output signal ...

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Номер записи: 44
03-01-2019 дата публикации

SYSTEM AND METHOD FOR VALIDATING OPERATION OF SECONDARY BRAKING SYSTEM OF A VEHICLE

Номер: US20190001949A1
Автор: PARK Juchirl, VERSIN Alexandru, Ying Long
Принадлежит:

A method is disclosed for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes, by controlling the SBS and a primary braking system (PBS) of the vehicle. The method may involve using the PBS to generate a first predetermined target braking pressure in the PBS for at least a first one of the brakes, while using the SBS to generate a second predetermined target braking pressure in the SBS for at least a second one of the brakes. Actual and anticipated performance characteristics of a braking component associated with the vehicle are then observed and compared, and from the comparison a determination is made whether the SBS is operating properly. 1. A method for validating operation of a secondary braking system (SBS) of a vehicle having a plurality of brakes , by controlling the SBS and a primary braking system (PBS) of the vehicle , the method comprising:using the PBS to generate a first predetermined target braking pressure in the PBS for at least a first one of the brakes;using the SBS to generate a second predetermined target braking pressure in the SBS for at least a second one of the brakes, while maintaining the first predetermined target braking pressure in the PBS, the second predetermined target braking pressure being higher than the first predetermined target braking pressure;observing an actual performance characteristic associated with a braking component of the vehicle;comparing the actual performance characteristic with an anticipated performance characteristic of the braking component; andwhen the actual performance characteristic is approximately equal to the anticipated performance characteristic, determining that the SBS is operating properly, and when the actual performance characteristic is not approximately equal to the anticipated performance characteristic, determining that the SBS is not operating properly.2. The method of claim 1 , wherein comparing the actual performance characteristic with an ...

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Номер записи: 45
13-01-2022 дата публикации

CONTROLLING METHOD FOR AN ACTUATOR, ACTUATOR, AND ELECTROMECHANICAL BRAKE SYSTEM

Номер: US20220009464A1
Автор: Luo Jiajun, Rylander Christian
Принадлежит:

This present disclosure provides a controlling method for an actuator (), an actuator (), and an electromechanical brake system of brake technology. The controlling method comprises: receiving a brake demand; controlling an electric motor () based on the brake demand; if the brake demand satisfies a preset stationary condition within a preset period, controlling a brake force holding device () to lock a shaft. In this way, frequent variations of the brake demand caused by interference from ambient disturbance or the driver's unsteady brake instructions may be prevented so that the actuator can be locked timely, thereby maintaining a continuous brake torque output with low power consumption or zero power consumption to provide a continuous brake force to the vehicle. 1. A controlling method for an actuator , the actuator comprising an electric motor with a shaft and a brake force holding device capable of locking the shaft , the controlling method comprising:receiving a brake demand;controlling the electric motor based on the brake demand; andif the brake demand satisfies a preset stationary condition within a preset period, controlling the brake force holding device to lock the shaft.2. The controlling method for an actuator according to claim 1 , wherein a desired electric motor rotated position of the electric motor is generated dependent on the brake demand.3. The controlling method for an actuator according to claim 2 , wherein the controlling method further comprises:filtering the desired electric motor rotated position; andthe preset stationary condition further includes that: a filtered desired electric motor rotated position is located within a preset stationary zone.4. The controlling method for an actuator according to claim 2 , wherein the controlling method further comprises: smoothing the desired electric motor rotated position.5. The controlling method for an actuator according to claim 3 , wherein the controlling method further comprises: smoothing ...

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Номер записи: 46
04-01-2018 дата публикации

SYSTEMS, APPARATUSES, AND METHODS FOR MONITORING PRESSURE IN A HYDRAULIC SYSTEM

Номер: US20180005462A1
Автор: Dhorajiya Ankitkumar P., MILTON Dale E.
Принадлежит: CATERPILLAR INC.

A method, system, and apparatus to determine a malfunction or an abnormal pressure condition in a hydraulic system over a time period are provided. The method, system, and apparatus include monitoring hydraulic accumulator charge time, hydraulic accumulator discharge time, and hydraulic pump pressure over the time period, and determining whether the monitored hydraulic accumulator charge time, hydraulic accumulator discharge time, and hydraulic pump pressure are within respective predetermined ranges. A maintenance notification is output responsive to at least one of the monitored hydraulic accumulator charge time, hydraulic accumulator discharge time, and hydraulic pump pressure being outside the respective predetermined ranges during the time period. 1. A mining truck comprising:a first hydraulic system to drive traction wheels of the mining truck;a second hydraulic system to operate a steering system of the mining truck; and a hydraulic brake pump;', 'a hydraulic brake accumulator in fluid communication with the hydraulic brake pump and the braking components of the mining truck;', 'a first sensor to sense pressure characteristics of the hydraulic brake pump;', 'a second sensor to sense pressure characteristics of the hydraulic brake accumulator; and', 'circuitry electrically coupled to the first sensor and the second sensor, and configured to:', 'receive a plurality of signals from the first sensor regarding sensed pressure characteristics of the hydraulic brake pump over a predetermined number of brake actuation cycles, the sensed pressure characteristics of the hydraulic brake pump including information regarding a maximum brake pump pressure for each of the brake actuation cycles,', 'receive a plurality of signals from the second sensor regarding sensed pressure characteristics of the hydraulic brake accumulator over the predetermined number of brake actuation cycles, the sensed pressure characteristics of the hydraulic brake accumulator including information ...

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Номер записи: 47
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: 48
20-01-2022 дата публикации

REDUNDANT POWER SUPPLY FOR BRAKE SYSTEM

Номер: US20220017053A1
Автор: Huchzermeier Johannes, Kiep Andreas
Принадлежит: INFINEON TECHNOLOGIES AG

Furthermore, a local control unit for a brake system is described. The control unit serves to actuate an electromechanical brake of the brake system of a wheel and according to one exemplary embodiment has a first connection for a main power supply and a second connection for a generator which is coupled to the wheel and which provides a standby power supply for the control unit. 1: A brake system comprising:two or more wheels, which are each coupled to an electric brake;a local control unit for each of the electric brakes, wherein each of the local control units is configured to actuate a respective electric brake in accordance with a control signal;a central brake control unit which is configured to generate the control signals for the local control units; andan electric generator for each of the wheels, wherein each of the electric generators is coupled to a respective wheels and each of the electric generators is configured to provide a standby power supply at least for a respective local control unit of the respective electric brake of the respective wheel.2: The brake system according to claim 1 ,wherein each of the local control units includes a supply connection for a main power supply.3: The brake system according to claim 1 ,wherein each of the electric generators is electrically connected to the respective local control unit of the respective electric brake of the respective wheel, in order to provide the standby power supply for the respective local control unit in the event that a main power supply is not available.4: The brake system according to claim 1 ,wherein a respective electric generator coupled to a first wheel is configured to be electrically connected to the respective local control unit of the respective electric brake of a second wheel in order to provide a backup power supply for the respective local control unit of the respective electric brake of the second wheel in the event that a main power supply is not available.5: The brake system ...

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Номер записи: 49
12-01-2017 дата публикации

Motor vehicle

Номер: US20170008401A1
Автор: Martin Stemmer
Принадлежит: Audi AG

The invention relates to a motor vehicle comprising: a number of wheels; a brake system having hydraulically actuatable brakes corresponding to each wheel; at least one brake circuit via which the brakes can be actuated; a brake booster via which the brake circuit can be operated, said brake booster being actuatable via a brake pedal to be actuated by the driver; and at least one pressure generation device and/or pressure accumulator device, which can be controlled by a control device, and via which the hydraulic pressure inside the brake circuit can be modulated. At least one electric motor ( 9 ) is provided, which motor is used in the event of a detected failure inside the brake system ( 2 ) to generate a deceleration torque by automatically switching into a generator operation, in order to brake the vehicle ( 1 ) until same has reached a standstill.

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Номер записи: 50
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: 51
11-01-2018 дата публикации

LOOSE WHEEL DETECTION

Номер: US20180009429A1
Автор: HALL Andreas, Johansson Robert, LILJA Martin, LINDMARK Gustav, Lindskog Peter, SVANTESSON Thomas
Принадлежит:

The disclosed invention makes use of a wheel speed signal to detect a wheel anomaly such as a loose wheel or a wheel with zero pressure. The wheel speed signal is used as a basis to determine a first and a second detection signal. A further basis for determining the first and second detection signals are a first and second reference signal, respectively. The anomaly of e.g. a loose wheel is detected, according to the teaching of the invention if at least one of the detection signals exceeds a threshold. In particular, the disclosure relates to methods, systems and computer program products to achieve the mentioned objective. 1. Method of detecting a loose wheel of a vehicle , comprising:obtaining a wheel speed signal t(n) indicative of a wheel speed of a wheel of a vehicle,determining a first detection signal on the basis of the wheel speed signal t(n) and a first reference signal,determining a second detection signal on the basis of the wheel speed signal t(n) and a second reference signal, the first detection signal exceeds a first detection threshold,', 'the second detection signal exceeds a second detection threshold., 'determining that the wheel of the vehicle is a loose wheel if at least one of the following conditions is met2. The method of claim 1 , wherein determining the first detection signal comprises:{'sub': l', 'l, 'estimating an imperfection signal {circumflex over (δ)}from the wheel speed signal t(n), which imperfection signal {circumflex over (δ)}being indicative of an imperfection of the wheel speed signal t(n) as compared to the actual wheel speed of the wheel of the vehicle.'}3. The method of claim 2 , whereinthe wheel speed signal t(n) is obtained from a wheel speed sensor sensing the wheel speed of the wheel of the vehicle, and{'sub': l', 'l, 'estimating the imperfection signal {circumflex over (δ)}comprises estimating a sensor imperfection value {circumflex over (δ)}indicative of the sensor imperfection of the wheel speed sensor.'}4. The ...

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Номер записи: 52
14-01-2021 дата публикации

Magnetic Brake Assist,Traction Control and Forward Assist

Номер: US20210009090A1
Автор: Bentley James A.
Принадлежит:

This device is magnetic brake assist, traction control and forward assist. It uses magnets inserted in the vehicles rims and in a stationary hub bolted behind the wheels hub and brake disk; to either slow the rotation of the tire down or speed the rotation up for braking and or for forward assist. 1. This device is magnetic brake assist. It uses magnets installed in the tires and rims and magnets installed in a stationary hub bolted behind the wheel hub and brake disk to slow the rotation of the tires to assist in braking.2. This device claim 1 , according to can also be used for traction control by slowing rotation of the inside tires in a curve helping it turn better.3. This device according to can also slow the rotation of the spinning tire in the event of a spinout and or hydroplaning situation helping to straighten the vehicle out.4. This device according to can also use alternating polarities using the magnets that are installed in the hub to propel the tires forward thus creating forward assist. The present application relates to a Magnetic Brake Assist Hub used to assist in braking and also used for traction control and forward assist.This Magnetic Brake Assist Hub will use electromagnets in conjunction with earth magnets to slow the rotation of the tire.The magnetic brake assist Hub will be used to slow the rotation of the inside tires during banking in a curve allowing it to turn the vehicle more efficiently in the curve without having to slow the momentum of the vehicle using the manual brakes.The Hub will also slow the rotation of the tires incase of a spinout as a way of traction control.The Hub will also use the magnets to help drive the wheels forward helping with fuel consumption as a forward assist feature.The following is a detailed description of the Magnetic Brake Assist unit.Number is a description of the inner magna hub. It is comprised of a round aluminum hub that is bolted behind the brake disk to the wheel hub. It has a row of electromagnets ...

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Номер записи: 53
14-01-2021 дата публикации

SYSTEM AND METHOD FOR OPERATING REDUNDANCY BRAKING IN CASE OF BREAKDOWN OF MAIN BRAKE FOR AUTONOMOUS VEHICLE

Номер: US20210009095A1
Автор: KIM In-Su
Принадлежит:

The present disclosure relates to a system and method for operating a main brake in case of a failure of an autonomous driving function of an autonomous vehicle. the system for operating the main brake in case of a failure of the autonomous driving function of the autonomous vehicle includes an autonomous driving control unit configured to perform control such that the autonomous vehicle travels in the autonomous driving mode, a main brake control unit configured to perform first communication with the autonomous driving control unit and to output a first control signal so that a frictional braking force is generated to a main brake by hydraulic pressure, and a regenerative braking control unit configured to perform second communication with the main brake control unit and to output a second control signal so that a regenerative braking force is generated to a motor. 1. A system for operating redundancy braking in case of a breakdown of a main brake for an autonomous vehicle , the system comprising:a main brake control unit configured to output a control signal so that a frictional braking force is generated to the main brake of the autonomous vehicle by hydraulic pressure;a redundancy braking control unit configured to perform communication with the main brake control unit and perform cooperative control between electronic stability control (ESC) and an electronic parking brake (EPB) so that a calculated target braking force is satisfied when it is determined that the main brake control unit has a function failure; anda sensor unit configured to receive vehicle interior information and vehicle exterior information of the autonomous vehicle and transmit the vehicle interior information and the vehicle exterior information to the redundancy braking control unit,wherein the redundancy braking control unit controls and replaces rear-wheel ESC braking force with rear-wheel EPB braking force when the rear-wheel ESC braking force satisfies the target braking force.2. The ...

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Номер записи: 54
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: 55
14-01-2021 дата публикации

MASTER CYLINDER AND BRAKE-BY-WIRE SYSTEM

Номер: US20210009099A1
Автор: Luo Dongqiang, Reuter David Fredrick
Принадлежит:

A master cylinder includes: a cylinder body; an isolation wall provided inside the cylinder body, arranged between a first chamber and a second chamber to isolate the first chamber and the second chamber, wherein, the isolation wall is integrally formed with the cylinder body; a first piston; a second piston; a first rod provided in connection with the first piston; a second rod provided inside the cylinder body, being in connection with the first piston, wherein, the second rod is supported in the isolation wall; and a cap provided at a first opening of the cylinder body, the first opening is at an end of the second chamber along the axial direction. A brake-by-wire system including the master cylinder is also disclosed herein. 1. A master cylinder , comprising:a cylinder body defining a first chamber and a second chamber arranged along an axial direction;an isolation wall provided inside the cylinder body, located between the first chamber and the second chamber to isolate the first chamber and the second chamber, wherein, the isolation wall is integrally formed with the cylinder body;a first piston at least partially disposed in the first chamber and movable along the axial direction;a second piston provided in the second chamber and movable in the axial direction;a first rod disposed in connection with the first piston;a second rod provided inside the cylinder body, being in connection with the first piston, wherein, the second rod is supported in the isolation wall;a cap provided at a first opening of the cylinder body, wherein, the first opening is at an end of the second chamber along the axial direction;a snap ring provided in the second chamber with the snap ring being attached to a bore of the second chamber and arranged behind the cap; anda first spring connecting the snap ring and the second piston.2. (canceled)3. (canceled)4. A master cylinder , comprising:a cylinder body defining a first chamber and a second chamber arranged along an axial direction;an ...

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Номер записи: 56
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: 57
10-01-2019 дата публикации

Controller and Method for Actuating at least one Valve of a Brake System of a Vehicle, said Valve being Closed in the De-Energized State

Номер: US20190009764A1
Автор: Bresser Andreas, Knoop Michael
Принадлежит: ROBERT BOSCH GMBH

A controller is configured to control at least one valve of a brake system of a vehicle that is closed in a de-energized state. The controller includes an actuation device configured to actuate the valve into an open state and to keep the valve in the open state. A holding current with at least one first average target current strength is output as a control signal by the actuation device to the valve. The holding current output to the valve is increased to at least one second average target current strength which is greater than the first average target current strength while taking into consideration provided information pertaining to a current rotational speed of an electric motor of a piston/cylinder device of the brake system and/or at least one current hydraulic pressure in at least one sub-volume of the brake system. 1. A controller for at least one normally closed valve of a brake system of a vehicle , comprising:an actuator configured to control and to hold the normally closed valve in an open state thereof by outputting a holding current with at least one first average setpoint current strength from the actuator to the normally closed valve as a control signal,wherein during the controlling and holding of the normally closed valve in the open state thereof, the actuator is additionally configured to increase the holding current that is output to the normally closed valve to at least one second average setpoint current strength that is greater than the first average setpoint current strength, while taking into account information provided about a current motor revolution rate of an electric motor of a piston-cylinder mechanism of the brake system and/or at least one current hydraulic pressure in at least one sub-volume of the brake system.2. The controller as claimed in claim 1 , wherein during the controlling and holding of the normally closed valve in the open state thereof claim 1 , the actuator is configured to increase the holding current to at least ...

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Номер записи: 58
10-01-2019 дата публикации

Valve Device for Throttling a Pressure Medium Flow, and Damping Device for Damping Pressure Pulsations

Номер: US20190011060A1
Автор: Lechler Andreas, Norberg Jens, Schellnegger Patrick
Принадлежит:

A valve device includes a valve body that forms a throttle cross section and a valve element that sets the throttle cross section depending on the pressure. To avoid pulsation-induced noises, the valve element is configured with a flow-deflecting member that causes action upon the valve element with a transverse force. The flow-deflecting member prevents noise-causing vibrations of the valve element and permits a lower throttling effect of the valve device, in particular when volumetric flows are increased. A damping device, in particular for damping pressure pulsations in a brake circuit of a slip-controllable vehicle brake system, includes the valve device. 1. A valve device , comprising:a valve body that forms a throttle cross-section surrounded by a valve seat; anda valve element that is received movably in the valve body and sets the throttle cross-section depending on the prevailing pressure conditions, the valve element loaded by an elastic return element against the throughflow direction of the valve device,wherein the valve element is configured with a flow-deflecting member that causes a transverse force to act upon the valve element transversely to the throughflow direction of the valve device when the pressure medium flows around the valve element.2. The valve device as claimed in claim 1 , wherein the flow-deflecting member is formed on the valve element in the form of one or more of (i) at least one groove through which pressure medium flows and (ii) at least one wing-like protrusion around which pressure medium flows.3. The valve device as claimed in claim 1 , wherein the flow-deflecting member is formed integrally with the valve element.4. The valve device as claimed in claim 1 , wherein the flow-deflecting member is arranged on at least one first peripheral portion of the valve element claim 1 , and wherein the valve element has at least one second peripheral portion that is free from the flow-deflecting member.5. The valve device as claimed in ...

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Номер записи: 59
03-02-2022 дата публикации

DYNAMIC CONTROL OF CONFIGURATIONS OF ELECTRICAL CIRCUITS

Номер: US20220032813A1
Автор: BOTTS Richard Edward, DAVENPORT Lanier M., THOMAS Andrew L.
Принадлежит:

Systems and methods for dynamic control of a configuration of electrical circuits are provided. An example system includes a plurality of electric power sources and a plurality of switches configured to connect and disconnect some of the electric power sources. The system may include a controller coupled to the switches. The controller may be configured to enable and disable the switches to cause a change in a configuration of the connections between the electric power sources. The electric power sources can include at least one generator and at least two batteries. The controller can be further configured to cause a change in the configuration to connect the two batteries in series to a load for discharging and connect the two batteries in parallel to the generator for recharging. 120-. (canceled)21. A system comprising:a plurality of rechargeable batteries comprising a first rechargeable battery and a second rechargeable battery;a plurality of switches, the plurality of switches being configured to modify a connection between at least some of the plurality of rechargeable batteries between a series connection and a parallel connection;a load; anda controller coupled to the plurality of switches, the controller being configured to enable and disable the plurality of switches to cause a change in a configuration of connections between the plurality of rechargeable batteries;wherein the plurality of rechargeable batteries are recharged at a lowest voltage capacity associated with the plurality of rechargeable batteries.22. The system of claim 21 , wherein the plurality of switches is further configured to:connect and disconnect at least some of the plurality of rechargeable batteries from each other.23. The system of claim 21 , wherein the load is coupled to an anode of the first rechargeable battery and a cathode of the second rechargeable battery.24. The system of claim 21 , wherein the plurality of switches comprises a metal-oxide-semiconductor field-effect ...

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Номер записи: 60
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: 61
03-02-2022 дата публикации

Modular Hydraulic Brake Actuation Assembly

Номер: US20220032890A1
Автор: Biguinet Benoit
Принадлежит:

A hydraulic brake actuation assembly with a first and a second spool is disclosed. The hydraulic brake actuation assembly includes a first and a second subassembly which are configured to be mounted to each other in a pre-assembled manner. The first subassembly includes the first spool and a first actuation piston which are moveable along a first axis respectively. At least one first spring is located between the first spool and the first actuation piston along the first axis. The first subassembly includes the second spool and a second actuation piston which are moveable along a second axis respectively. At least one second spring is located between the second spool and the second actuation piston along the second axis. The first and the second axis are parallel to each other. The second subassembly includes a third and a fourth actuation piston. The third actuation piston is moveable along the first axis. It has a third contact surface which is able to contact a first contact surface of the first actuation piston. The fourth actuation piston is moveable along the second axis. It has a fourth contact surface which is able to contact a second contact surface of the second actuation piston. 1. A hydraulic brake actuation assembly with a first and a second spool , comprising:a first subassembly and a second subassembly which are configured to be mounted to each other in a pre-assembled manner,wherein the first subassembly comprises the first spool and a first actuation piston which are moveable along a first axis respectively,wherein at least one first spring is located between the first spool and the first actuation piston along the first axis,wherein the first subassembly comprises the second spool and a second actuation piston which are moveable along a second axis respectively,wherein at least one second spring is located between the second spool and the second actuation piston along the second axis,wherein the first axis and the second axis are parallel to each ...

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Номер записи: 62
03-02-2022 дата публикации

ELECTRONICALLY CONTROLLED PNEUMATIC BRAKE SYSTEM COMPRISING AN ELECTRONICALLY CONTROLLED TRAILER CONTROL MODULE

Номер: US20220032891A1
Автор: Amtsfeld Joachim, Förster Henning, KLOSTERMANN Thilo, Schwagmeyer Florian
Принадлежит:

An electronically controlled pneumatic brake system () for a vehicle , with a supply coupling head (), a control coupling head (), and an electronically controlled trailer control module () includes a first supply port (), a trailer supply connection () for providing a trailer supply pressure (pT) to the supply coupling head (), a trailer control connection () for providing a trailer control pressure (pB) to the control coupling head (), an electro-pneumatic trailer control valve arrangement () for providing the trailer control pressure (pB), and a tractor protection valve electronic control unit (). The electro-pneumatic trailer control valve arrangement () is configured to only supply a trailer control pressure (pB) to the trailer control connection () when compressed air is supplied to the trailer supply connection (). 12100200. An electronically controlled pneumatic brake system () for a vehicle () , in particular a commercial vehicle () , comprising:{'b': 4', '20', '20, 'i': a', 'b, 'a first brake circuit () including a first brake actuator () and a second brake actuators (),'}{'b': 6', '20', '20, 'i': c', 'd, 'a second brake circuit () including a third brake actuator () and a fourth brake actuator (),'}{'b': '10', 'a first compressed air supply (), and'}{'b': 8', '24', '26, 'a trailer control circuit () comprising a supply coupling head () and a control coupling head (), and'}{'b': '28', 'claim-text': [{'b': 28', '1', '10, 'a first supply port (.) for receiving supply pressure (pS) from the first compressed air supply (),'}, {'b': 28', '2', '24, 'a trailer supply connection (.) for providing a trailer supply pressure (pT) at the supply coupling head (),'}, {'b': 28', '3', '26, 'a trailer control connection (.) for providing a trailer control pressure (pB) at the control coupling head (),'}, {'b': 40', '28', '1', '28', '3, 'an electro-pneumatic trailer control valve arrangement () in fluid connection with the first supply port (.) for receiving the supply ...

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Номер записи: 63
03-02-2022 дата публикации

AIR BRAKE SYSTEM

Номер: US20220032892A1
Автор: JR. BERNHARDT R., LABASTIDE
Принадлежит: International Truck Intellectual Property Company, LLC

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

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Номер записи: 64
03-02-2022 дата публикации

Unattended Railcar Motion Control System

Номер: US20220032973A1
Автор: David Alexander Shaw, Mark Charles Engelland, Trevor Michael Greer
Принадлежит: Enersul Inc

A method and mechanism for initiating an emergency stop for an unattended railcar is disclosed. The method may include using a trip arm placed alongside the railway tracks at a designated stop point that may contact a portable trip-cock lever arm that extends out beyond the perimeter of the railcar if the railcar reaches the stop point as it moves along the track. The trip-cock lever arm may be attached to a valve that is connected to the pneumatic brake system of the unattended railcar. As the trip-cock lever arm rotates, the valve may open to release the air pressure in the pneumatic brake system causing the brakes to engage the wheels causing the railcar to stop.

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Номер записи: 65
19-01-2017 дата публикации

A Vehicle Braking Arrangement

Номер: US20170015287A1
Автор: SANDER ULRICH, Svenson Christian
Принадлежит: Autoliv Development AB

The present invention relates to a vehicle braking arrangement for a vehicle with wheels contacting the ground during normal running. The vehicle braking arrangement includes an emergency brake control unit, a first emergency braking system including non-reversible braking means arranged to operate independently of the vehicle wheels, at least one acceleration detector, and a wheel brake anti-locking system. The emergency brake control unit is arranged to input acceleration data (a) when the wheel brake anti-locking system is active, and to calculate the coefficient of friction (μ) between the wheels and the ground. The emergency brake control unit is arranged to determine if the first emergency braking system should be activated in dependence of a first plurality of parameters, where one of these parameters is the coefficient of friction (μ). 1. A vehicle braking arrangement for a vehicle with wheels that are adapted to be in contact with the ground during normal running , where the vehicle braking arrangement comprises: an emergency brake control unit , a first emergency braking system comprising non-reversible braking means that is arranged to operate independently of the vehicle wheels , at least one acceleration detector , and a wheel brake anti-locking system , wherein the emergency brake control unit is arranged to input vehicle acceleration data (a) from said acceleration detector when the wheel brake anti-locking system is active , and to calculate a coefficient of friction (μ) between the wheels and the ground as said acceleration data (a) divided by the gravitational acceleration (g) , wherein the emergency brake control unit further is arranged to determine if the first emergency braking system should be activated in dependence of a first plurality of parameters , and where one of the first plurality of parameters is said coefficient of friction (μ).2. A vehicle braking arrangement according to claim 1 , wherein the vehicle braking arrangement comprises ...

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Номер записи: 66
19-01-2017 дата публикации

SAFETY STOPPAGE DEVICE AND METHOD FOR SAFETY STOPPAGE OF AN AUTONOMOUS VEHICLE

Номер: US20170015288A1
Автор: COELINGH Erik, KINDBERG Leif
Принадлежит:

A safety stoppage device and method for safety stoppage of an autonomous vehicle including control networks and sensors for monitoring the autonomous vehicle surroundings and motion includes a brake-control unit for a brake system including wheel brakes of the autonomous vehicle, and a signaling processing system for processing sensor signals enabling an autonomous drive mode thereof. Where a drivable space exists is predicted based on data from the sensors and sensor fusion, and a safe trajectory to a stop within the drivable space is calculated and sent to the brake-control unit and stored therein. The brake-control unit is shielded against electromagnetic compatibility problems and configured to monitor if the control networks are operational and, if determined incapacitated, control the autonomous vehicle to follow the most recently calculated safe trajectory to a stop within the drivable space using differential braking of the wheel brakes thereof in order to effectuate steering. 1. A safety stoppage device for an autonomous vehicle having control networks and sensors for monitoring surroundings and motion of the autonomous vehicle , the safety stoppage device comprising:a brake-control unit for a brake system including wheel brakes of the autonomous vehicle;a signaling processing system for processing sensor signals enabling an autonomous drive mode of the autonomous vehicle, wherein the signaling processing system is configured to predict where a drivable space exists based on data from the sensors and sensor fusion, calculate a safe trajectory to a stop within the drivable space, and send the calculated safe trajectory to the brake-control unit;wherein the brake-control unit is shielded against electromagnetic compatibility problems, and is configured to store a most recently calculated safe trajectory to a stop within the drivable space, and monitor if the control networks of the autonomous vehicle are operational;wherein, if the brake-control unit ...

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Номер записи: 67
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: 68
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: 69
03-02-2022 дата публикации

WEAR VOLUME ESTIMATION DEVICE, WEAR VOLUME ESTIMATION METHOD, AND WEAR VOLUME ESTIMATION PROGRAM

Номер: US20220034379A1
Автор: Matsui Noriyoshi
Принадлежит:

A wear volume estimation device estimates a wear volume of a brake pad of a vehicle. A wear volume function expresses the wear volume as a function of a vehicle speed, a brake pressure, and a brake duration. The wear volume estimation device calculates the wear volume by using the wear volume function. Moreover, the wear volume estimation device estimates a temperature of a contact surface of the brake pad that comes in contact with a brake rotor, and updates temperature history information indicating at least a temperature history of the contact surface based on the temperature of the contact surface. The wear volume estimation device variably sets the wear volume function according to the temperature history of the contact surface indicated by the temperature history information acquired at a time of previous braking. 1. A wear volume estimation device that estimates a wear volume of a brake pad of a vehicle ,the wear volume estimation device comprising:a processor; anda storage configured to store information on a wear volume function that expresses the wear volume as a function of a vehicle speed, a brake pressure, and a brake duration, wherein an information acquisition process acquiring information on the vehicle speed, the brake pressure, and the brake duration, during braking of the vehicle;', 'a wear volume calculation process calculating the wear volume according to the vehicle speed, the brake pressure, and the brake duration by using the wear volume function;', 'a temperature estimation process estimating a temperature of a contact surface of the brake pad that comes in contact with a brake rotor, based on the vehicle speed, the brake pressure, and the brake duration; and', 'a temperature history management process updating temperature history information indicating at least a temperature history of the contact surface, based on the temperature of the contact surface, and, 'the processor is programmed to executein the wear volume calculation process, the ...

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Номер записи: 70
18-01-2018 дата публикации

Control device for vehicle and control method for vehicle

Номер: US20180015925A1
Автор: Akira Sawada, Hiroyuki Komatsu, Ken Ito, Takashi Nakajima, Yuji Katsumata
Принадлежит: Nissan Motor Co Ltd

The device that generates the friction braking force to decelerate the vehicle estimates the disturbance torque acting on the vehicle. When the accelerator operation amount is equal to or less than the predetermined value and the vehicle is just before the stop of the vehicle, the control device for vehicle causes the friction braking amount to converge to the friction braking amount to the value decided on the basis of the disturbance torque estimated value Td in conjunction with the reduction in the motor rotation speed (speed parameter) proportionate to the traveling speed of the vehicle.

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Номер записи: 71
17-01-2019 дата публикации

HYDRAULIC POWER BRAKE SYSTEM AND METHOD FOR ABS CONTROL

Номер: US20190016318A1
Автор: Brütt Mirko, Haverkamp Michael
Принадлежит:

A hydraulic power brake system () of a wheeled vehicle or for a vehicle unit has a main brake line (), in which a setpoint brake pressure can be controlled via a brake valve () that is operated via a brake pedal (), and from which an axle brake line or a wheel brake line () branches off. Inlet valves and outlet valves and a pilot control valve of the ABS control system for the vehicle unit or for each vehicle axle are respectively disposed together in an ABS modulator block (), which also includes a temperature sensor () for detecting the oil temperature (T) and a heating element () for locally heating the hydraulic oil are disposed in each ABS modulator block (). 11. A hydraulic power brake system () for a wheeled vehicle unit , comprising:{'b': 20', '21', '4', '7', '46', '49', '50', '13', '15', '17', '19', '12', '14', '16', '18, 'a main brake line (, ), configured to provide a setpoint brake pressure controlled via a brake valve () that is operated via a brake pedal (), and from which an axle brake line or wheel brake line (, , ) leading to an actuating unit (, , , ) of a wheel brake (, , , ) branches off,'}{'b': 8', '28', '34', '40', '20', '21', '46', '49', '50', '30', '36', '42', '46', '49', '50', '51', '52', '53', '32', '33', '38', '39', '44', '45', '28', '30', '34', '36', '40', '42, 'a valve arrangement () of an ABS control system, which comprises respectively a hydraulic pressure-controlled inlet valve (, , ) disposed between the main brake line (, ) and a respective axle brake line or wheel brake line (, , ), and a hydraulic pressure-controlled outlet valve (, , ) disposed between the respective axle brake line or wheel brake line (, , ) and an unpressurised return line (, , ), and a electromagnetically operated pilot control valve (, , , , , ) connected upstream of each inlet valve and outlet valve (, , , , , ),'}{'b': 28', '30', '34', '36', '40', '42', '32', '33', '38', '39', '44', '45', '69', '70', '71', '72', '73', '74', '75', '69, 'wherein the inlet ...

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Номер записи: 72
17-01-2019 дата публикации

ADD-ON MODULE FOR AN ELECTROHYDRAULIC BRAKE ASSEMBLY, AND BRAKE ASSEMBLY SYSTEM COMPRISING AN ADD-ON MODULE OF SAID TYPE

Номер: US20190016321A1
Автор: DINKEL Dieter
Принадлежит: Continental Teves AG & Co. oHG

An auxiliary module for an electrohydraulic brake assembly, in particular for use in highly automated driving, including a hydraulics unit with a pressure provision device for building up pressure in at least two brakes, wherein at least one reservoir for brake fluid is integrated into the hydraulics unit, and a brake assembly system having an auxiliary module. 1. An auxiliary module for an electrohydraulic brake assembly , for use in highly automated driving , comprising:a hydraulics unit with a pressure provision device for building up pressure in at least two brakes, andat least one reservoir for brake fluid integrated into the hydraulics unit.2. The auxiliary module as claimed in claim 1 , wherein the pressure provision device comprises at least one pump which is driven by an electric motor and a suction side of the at least one pump is hydraulically connected to the respective reservoir.3. The auxiliary module as claimed in claim 2 , wherein exactly two reservoirs for brake fluid and exactly two pumps are provided claim 2 , and wherein each of the two pumps is claim 2 , at the suction side claim 2 , hydraulically connected via a suction line to exactly one reservoir.4. The auxiliary module as claimed in claim 3 , wherein the two pumps are driven by a common electric motor.5. The auxiliary module as claimed in claim 2 , wherein each pump is claim 2 , at a respective pressure side claim 2 , connected to a wheel brake feed line which is connected to a hydraulic wheel brake.6. The auxiliary module as claimed in claim 5 , wherein the respective wheel brake feed line is connected to a pressure sensor which measures the pressure in the wheel brake feed line.7. The auxiliary module as claimed in claim 3 , wherein a valve which is closed when electrically deenergized is connected into the respective suction line.8. The auxiliary module as claimed in claim 5 , wherein claim 5 , from the respective wheel brake feed line claim 5 , a hydraulic return line branches off which ...

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Номер записи: 73
17-01-2019 дата публикации

HYDRAULIC ACTUATOR, VEHICLE AXLE ARRANGEMENT COMPRISING A HYDRAULIC ACTUATOR, AND ELECTRONICALLY CONTROLLABLE HYDRAULIC BRAKE SYSTEM

Номер: US20190016322A1
Автор: Dieckmann Thomas
Принадлежит:

A hydraulic actuator for supplying a hydraulic brake pressure to service brakes of a vehicle includes an actuator cylinder including a piston. A hydraulic working pressure of a brake fluid can be set in accordance with a position of the piston. The brake fluid is supplied from a hydraulic reservoir assigned to the hydraulic cylinder, and the hydraulic working pressure prevails in a working space of the actuator cylinder and can be output via an actuator output port on the actuator cylinder in order to supply a hydraulic brake pressure in accordance with the hydraulic working pressure. The hydraulic actuator further includes an electrically controllable motor. A rotary motion brought about by the electrically controllable motor can be converted by a conversion mechanism into a translational motion of the piston parallel to a longitudinal direction thus enabling a hydraulic brake pressure to be supplied by electric control of the motor. 1. A hydraulic actuator for supplying a hydraulic brake pressure to service brakes of a vehicle , the hydraulic actuator comprising:an actuator cylinder including a piston, wherein a hydraulic working pressure of a brake fluid can be set in accordance with a position of the piston, wherein the brake fluid is supplied from a hydraulic reservoir assigned to the hydraulic cylinder, wherein the hydraulic working pressure prevails in a working space of the actuator cylinder and can be output via an actuator output port on the actuator cylinder in order to supply a hydraulic brake pressure in accordance with the hydraulic working pressure, andan electrically controllable motor, wherein a rotary motion brought about by the electrically controllable motor can be converted by a conversion mechanism into a translational motion of the piston parallel to a longitudinal direction thus enabling a hydraulic brake pressure to be supplied by electric control of the motor,wherein the translational motion of the piston in the actuator cylinder of the ...

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Номер записи: 74
21-01-2016 дата публикации

Signal processing apparatus

Номер: US20160018463A1
Автор: Akira Nakashima, Tetsuya Kimata
Принадлежит: Denso Corp

A signal processing apparatus includes a recording unit, an operation unit, a processing unit and an abnormality detector. The recording unit records configuration data therein. The operation unit performs arithmetic and logical operations on an input signal and outputs an operation signal indicative of the result of the operations. The operation unit has a circuit configuration defined by the configuration data recorded in the recording unit. The processing unit acquires the operation signal outputted from the operation unit, produces an output signal based on the acquired operation signal and outputs the produced output signal. The abnormality detector detects an abnormality of the circuit configuration of the operation unit. Moreover, in the signal processing apparatus, the processing unit is configured to further acquire an abnormality detection result from the abnormality detector after the acquisition of the operation signal and output the output signal depending on the abnormality detection result.

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Номер записи: 75
16-01-2020 дата публикации

BRAKE APPARATUS FOR VEHICLES

Номер: US20200016983A1
Автор: KIM Jong Sung
Принадлежит:

A brake apparatus for vehicles may include: a regenerative brake unit configured to perform a regenerative braking operation of a rear-wheel-drive vehicle; a master cylinder configured to form master braking hydraulic pressure using an operation of an actuator to apply, to front wheels and rear wheels of the rear-wheel-drive vehicle, frictional braking force determined by subtracting regenerative braking force generated by the regenerative brake unit from braking force demanded by a driver; and a valve unit configured to adjust the master braking hydraulic pressure formed by the master cylinder so that the frictional braking force is differentially applied to the front wheels and the rear wheels, and to restrict braking force for the rear wheels from being increased by regenerative braking force applied to the rear wheels. 1. A brake apparatus for vehicles comprising:a regenerative brake unit configured to perform a regenerative braking operation of a rear-wheel-drive vehicle;a master cylinder configured to form master braking hydraulic pressure using an operation of an actuator to apply, to front wheels and rear wheels of the rear-wheel-drive vehicle, frictional braking force determined by subtracting regenerative braking force generated by the regenerative brake unit from braking force demanded by a driver; anda valve unit configured to adjust the master braking hydraulic pressure formed by the master cylinder so that the frictional braking force is differentially applied to the front wheels and the rear wheels, and to restrict braking force for the rear wheels from being increased by regenerative braking force applied to the rear wheels.2. The brake apparatus according to claim 1 , wherein the valve unit restricts the braking force of the rear wheels such that preset braking distribution conditions are satisfied claim 1 , taking into account a ratio between the frictional braking force to be applied to the front wheels and the braking force of the rear wheels ...

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Номер записи: 76
16-01-2020 дата публикации

VEHICLE BRAKING CONTROL DEVICE

Номер: US20200017082A1
Автор: HASHIMOTO Kosuke, KUBOTA Hayato, Nakata Daisuke, Takahashi Kenichiro
Принадлежит: ADVICS CO., LTD.

Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device. 16.-. (canceled)7. A vehicle braking control device applicable to a vehicle equipped with a plurality of braking devices including an electric-powered parking braking device that increases a braking force to a wheel of the vehicle when a parking braking operation is performed , the vehicle braking control device comprising:a first braking control unit configured to perform a first braking process which increases a braking force to the vehicle by operating a first braking device of the plurality of braking devices when the parking braking operation is performed while the vehicle is traveling; anda second braking control unit configured to perform a second braking process which increases the braking force to the vehicle by operating a second braking device, which is different from the first braking device, of the plurality of braking devices when there is a need to increase the braking force to the vehicle during the first braking process being performed.8. The vehicle braking control device according to claim 7 , further comprising a calculation unit configured to calculate a target braking force claim 7 , which is a target value of the braking force to the ...

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Номер записи: 77
16-01-2020 дата публикации

Vehicle Control System And Method

Номер: US20200017084A1
Автор: Bender Paul Gerard, Cortie Alan Laurance, Rice Danial, Wolf Charles L.
Принадлежит:

A vehicle control system includes a first controller configured to communicate a first brake command to one or more brake devices of a vehicle system via a communication pathway. The system also includes a second controller configured to monitor the communication pathway to determine whether the first brake command from the first controller is communicated via the communication pathway to the one or more brake devices. The second controller also is configured to implement a backup brake command to the one or more brake devices based on a presence of the first brake command and a level of brake application dictated by the first brake command. 1. A system comprising:a first controller configured to communicate a first brake command to one or more brake devices of a vehicle system via a communication pathway; anda second controller configured to monitor the communication pathway to determine whether the first brake command from the first controller is communicated via the communication pathway to the one or more brake devices,the second controller also is configured to implement a backup brake command to the one or more brake devices based on a presence of the first brake command and a level of brake application dictated by the first brake command.2. The system of claim 1 , wherein the second controller is configured to implement the backup brake command responsive to the first brake command being detected on the communication pathway.3. The system of claim 1 , wherein the second controller is configured to implement the backup brake command responsive to the first brake command directing less than a full application of the one or more brake devices.4. The system of claim 1 , wherein the second controller is configured to implement the backup brake command responsive to both the first brake command being detected on the communication pathway and the first brake command directing less than a full application of the one or more brake devices.5. The system of claim 1 , ...

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Номер записи: 78
16-01-2020 дата публикации

VEHICLE CONTROL DEVICE

Номер: US20200017087A1
Автор: Masuda Yui
Принадлежит: NTN CORPORATION

The vehicle control device includes a speed calculation unit, a speed estimation unit, a motion feedback calculation unit, and a slip estimator. The speed calculation unit calculates a speed in a predetermined direction of a vehicle on the basis of a feature quantity. The speed estimation unit estimates a speed in the predetermined direction on the basis of a speed or acceleration detected by a motion detector. The motion feedback calculation unit performs feedback calculation in which a value obtained, through a proportional gain, from a deviation between a calculation speed calculated by the speed calculation unit and an estimation speed estimated by the speed estimation unit, is added to the feature quantity. The slip estimator compares the calculation speed with the estimation speed, and estimates that the vehicle is in a slip state in the predetermined direction, when the estimation speed exceeds the calculation speed. 1. A vehicle control device for controlling a vehicle drive device in a vehicle including a vehicle operation device for performing operation for at least either one of front-rear force and a turning direction of the vehicle , and a motion detector capable of detecting a speed or acceleration in a predetermined direction of the vehicle , the vehicle drive device being capable of generating at least either one of front-rear force and turning force of the vehicle on the basis of an operation input value with respect to the vehicle operation device , the vehicle control device comprising:a speed calculation unit configured to calculate a speed in the predetermined direction of the vehicle on the basis of a feature quantity represented by at least one of the operation input value with respect to the vehicle operation device and driving force of the vehicle drive device;a speed estimation unit configured to estimate a speed in the predetermined direction on the basis of the speed or the acceleration detected by the motion detector;a motion feedback ...

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Номер записи: 79
16-01-2020 дата публикации

OPEN LOOP CONTROL FOR ELECTROMECHANICAL BRAKE

Номер: US20200017093A1
Автор: Bieltz Karsten
Принадлежит:

Systems and methods for providing open loop motor control for an electromechanical brake when closed loop motor control fails. The method includes determining, with an electronic controller, whether a rotor position sensor or a current sensor is not operating correctly, generating, with the electronic controller, a generated control signal for controlling a permanent magnet synchronous machine, and activating, with the electronic controller, the permanent magnet synchronous machine using the generated control signal to generate a stator magnetic field to operate the rotor of the permanent magnet synchronous machine of the electromechanical brake. 1. A system for providing open loop motor control for an electromechanical brake when closed loop motor control fails , the system comprising:an electromechanical brake mechanism including a permanent magnet synchronous machine,a rotor position sensor configured to detect a position of a rotor of the permanent magnet synchronous machine,a motor current sensor, and determine whether at least one of the rotor position sensor and the motor current sensor is not operating correctly,', 'generate a control signal for controlling the permanent magnet synchronous machine, wherein the control signal includes a stator magnetic flux strength, a frequency of the stator magnetic field, and a specified angular velocity of the stator magnetic field, and', 'activate the permanent magnet synchronous machine using the generated control signal to generate a stator magnetic field to operate the rotor of the permanent magnet synchronous machine., 'an electronic controller configured to'}2. (canceled)3. The system of claim 1 , further comprising a master cylinder pressure sensor.4. The system of claim 3 , wherein the electronic controller receives a master cylinder pressure from the master cylinder pressure sensor and sets the stator magnetic flux strength of the permanent magnet synchronous machine based upon the master cylinder pressure sensor ...

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Номер записи: 80
21-01-2021 дата публикации

METHOD FOR CONTROLLING A DRIVING DYNAMICS CONTROL DEVICE, AND DRIVING DYNAMICS CONTROL DEVICE

Номер: US20210016751A1
Автор: BODMANN Jochen, Emde Christoph, Schmidtlein Andreas
Принадлежит:

A method is provided for controlling a driving dynamics control unit for influencing the braking of wheels of a motor vehicle. The driving dynamics control device having a pump, which includes at least two pump elements for the supply of brake fluid, and an electric motor, which includes a rotor and a stator for driving the pump elements. The method includes the following steps: detecting the position of the rotor relative to the stator, and adjusting an ideal position of the rotor relative to the stator, the sum of the torques for moving the pump elements lying below a predefined torque limit value, in particular being minimal, in the ideal position. 111- (canceled)12. A method for controlling a driving dynamics control device which is configured to influence braking of wheels of a motor vehicle , the driving dynamics control device including a pump which includes at least two pump elements configured to supply brake fluid , and an electric motor which includes a rotor and a stator configured to drive the pump elements , the method comprising the following steps:detecting a position of the rotor relative to the stator; andadjusting an ideal position of the rotor relative to the stator, a sum of torques for moving the pump elements lying below a predefined torque limit value in the ideal position.13. The method as recited in claim 12 , wherein the sum of the torques is minimal in the ideal position.14. The method as recited in claim 12 , wherein the ideal position is determined by generating a predefined counterpressure against the supply of the brake fluid using the pump claim 12 , and detecting the current of the electric motor required to supply the brake fluid against the generated counterpressure by the pump elements claim 12 , the position of the rotor relative to the stator in which the required current for the electric motor lies below a predefined current value being defined as the ideal position.15. The method as recited in claim 14 , wherein the required ...

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Номер записи: 81
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: 82
21-01-2021 дата публикации

Vehicle Control Apparatus, Vehicle Control Method, and Vehicle Control System

Номер: US20210016785A1
Автор: Satoshi Nakagawa
Принадлежит: Hitachi Astemo Ltd

An object of the present invention is to prevent a cost increase and an increase in an installation space due to a redundant arrangement of a vehicle motion control apparatus. A vehicle control apparatus includes an input portion configured to receive an input of a target state from a vehicle motion control controller equipped with a first vehicle motion control function configured to determine the target state for achieving a target route input from an autonomous driving controller, a first control portion configured to control a motion state based on the target state input from the input portion, and a second control portion equipped with a second vehicle motion control function configured to determine the target state for achieving the target route input from the autonomous driving controller and configured to control the motion state based on the target state input from the input portion.

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Номер записи: 83
16-01-2020 дата публикации

ARCHITECTURE FOR LOCKED WHEEL AND ANTISKID PERFORMANCE

Номер: US20200017202A1
Автор: Georgin Marc, Kordik Michael
Принадлежит: GOODRICH CORPORATION

Braking control systems and methods, such as for an aircraft, use a dump valve to rapidly decrease hydraulic pressure applied to a brake actuator during a wheel skid condition. In response to the wheel speed recovering, the dump valve is commanded closed and the brake control system returns to normal braking. The dump valve and a servo-valve may work harmoniously for locked wheel brake control. 1. A brake control system , comprising:a non-transitory memory configured to store instructions; and control a servo valve;', 'determine whether a locked wheel condition is detected;', 'command a dump valve to open in response to the locked wheel condition being detected to release the hydraulic fluid from the hydraulic line;', 'determine whether a wheel speed has recovered; and', 'command the dump valve closed in response to the wheel speed being recovered., 'a controller in electronic communication with the memory, the controller configured to2. The brake control system of claim 1 , further comprising a brake control module claim 1 , comprising:a shutoff valve configured to receive a hydraulic fluid;the servo valve configured to receive the hydraulic fluid from the shutoff valve and configured to provide the hydraulic fluid to apply braking force to a wheel via a hydraulic line; andthe dump valve, wherein the dump valve is in fluid communication with the hydraulic line.3. The brake control system of claim 2 , wherein the controller determines whether the locked wheel condition is detected by determining whether a rotational velocity of the wheel has decreased below a first pre-determined threshold value.4. The brake control system of claim 3 , wherein the controller determines whether the wheel speed has recovered by determining whether the rotational velocity of the wheel has increased above a second pre-determined threshold value.5. The brake control system of claim 2 , wherein the controller commands the dump valve open by sending a dump valve control signal to the dump ...

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Номер записи: 84
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: 85
17-01-2019 дата публикации

COMPOSITE CABLE AND COMPOSITE HARNESS

Номер: US20190019602A1
Автор: Eshima Hirotaka, FUTATSUMORI Takahiro, HAYAKAWA Yoshikazu, Murayama Tomoyuki, Oka Fumihito
Принадлежит:

A composite cable includes a first twisted-pair wire formed by twisting a pair of first electric wires, a second twisted-pair wire formed by twisting a pair of second electric wires, a pair of third electric wires arranged between the first and second twisted-pair wires in a circumferential direction, each third electric wire having a larger outer diameter than the first and second electric wires, and a tape member spirally wound around an assembled article that is formed by twisting the first twisted-pair wire, the second twisted-pair wire and the pair of third electric wires together. The two twisted-pair wires have the same twist direction, the twist direction of the two twisted-pair wires is different from a twist direction of the assembled article, and the twist direction of the assembled article is different from a winding direction of the tape member. 1. A composite cable , comprising:a first twisted-pair wire formed by twisting a pair of first electric wires contacting each other, each first electric wire comprising a first center conductor and a first insulation covering the first center conductor;a second twisted-pair wire formed by twisting a pair of second electric wires contacting each other, each second electric wire comprising a second center conductor and a second insulation covering the second center conductor;a pair of third electric wires, each third electric wire having a larger outer diameter than the first and second electric wires and comprising a third center conductor with a larger cross-sectional area than the first and second center conductors and a third insulation covering the third center conductor; anda tape member spirally wound around an assembled article that is formed by twisting the first twisted-pair wire, the second twisted-pair wire and the pair of third electric wires together,wherein the first twisted-pair wire is arranged at one side with respect to a line connecting centers of the pair of third electric wires, and the ...

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Номер записи: 86
26-01-2017 дата публикации

VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD

Номер: US20170021731A1
Автор: Kaneko Satoshi, Suzuki Keisuke
Принадлежит: Hitachi Automotive Systems, Ltd.

An object of the present invention is to provide a vehicle control apparatus capable of stabilizing a behavior of a vehicle when a regenerative braking force is generated. To achieve this object, a vehicle control apparatus according to one aspect of the present invention includes an electric motor configured to provide a regenerative braking force to left and right drive wheels that are one of front wheels and rear wheels, a friction braking device configured to provide a friction braking force to left and right trailer wheels that are the other of the front wheels and the rear wheels, and a behavior estimation unit configured to estimate a behavior of a vehicle. The vehicle control apparatus reduces the regenerative braking force and increases the friction braking force provided by the friction braking device, if the behavior estimation unit estimates a preset behavior when the regenerative braking force is generated. 1. A vehicle control apparatus comprising:an electric motor configured to provide a regenerative braking force to left and right drive wheels that are one of front wheels and rear wheels;a friction braking device configured to provide a friction braking force to left and right trailer wheels that are the other of the front wheels and the rear wheels; anda behavior estimation unit configured to estimate a behavior of a vehicle,wherein the vehicle control apparatus reduces the regenerative braking force and increases the friction braking force provided by the friction braking device, if the behavior estimation unit estimates a preset behavior when the regenerative braking force is generated.2. The vehicle control apparatus according to claim 1 , wherein the behavior estimation unit estimates an understeer tendency when the vehicle is turned.3. The vehicle control apparatus according to claim 2 , wherein the behavior estimation unit estimates a lateral acceleration that can be generated on the vehicle claim 2 , based on a vehicle state claim 2 , and the ...

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Номер записи: 87
25-01-2018 дата публикации

PARKING ASSIST DEVICE

Номер: US20180022329A1
Автор: Sannodo Shinya
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A parking assist device includes an electronic control unit. The electronic control unit is configured to: perform parking assist of a vehicle to automatically park the vehicle at a target position while restricting a vehicle speed to an upper limit or lower in accordance with an instruction of a user who is outside the vehicle; determine whether or not the vehicle moves on a road surface having a downhill grade along a travelling direction of the vehicle by the parking assist; and set the upper limit in the case where the vehicle is determined to move on the road surface having a downhill grade to be smaller than the upper limit in the case where the vehicle is not determined to move on the road surface having a downhill grade. 1. A parking assist device , comprisingan electronic control unit configured to:perform parking assist of a vehicle to automatically park the vehicle at a target position, while restricting a vehicle speed to an upper limit or lower in accordance with an instruction of a user who is outside the vehicle;determine whether or not the vehicle moves on a road surface having a downhill grade along a travelling direction of the vehicle by the parking assist; andset the upper limit in a case where the vehicle is determined to move on the road surface having the downhill grade to be smaller than the upper limit in a case where the vehicle is not determined to move on the road surface having the downhill grade.2. The parking assist device according to claim 1 , whereinthe electronic control unit configured to:at a time of braking the vehicle during the parking assist, brake the vehicle by controlling a hydraulic first brake device operable to brake the vehicle;when an abnormality occurs during the parking assist, the abnormality being a failure in controlling the first brake device to brake the vehicle, brake the vehicle with a second brake device different in type from the hydraulic, the second brake device being allowed to operate under a situation ...

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Номер записи: 88
25-01-2018 дата публикации

VALVE ASSEMBLY FOR AN ANTILOCK SYSTEM OF A BRAKE SYSTEM OF A VEHICLE

Номер: US20180022331A1
Автор: Bruett Mirko, Heinrich Volker
Принадлежит: WABCO GmbH

A valve assembly for an antilock system of a brake system of a vehicle includes a cylindrical rotary valve rotatably mounted in a valve block and configured to be activated by a step motor, configured to occupy at least two shifting positions, and having one input and one output. In one of the shifting positions, at least one duct leading to a wheel brake cylinder can be acted upon with a pressurizing medium via the input. In another of the shifting positions, the pressurizing medium can be discharged via the output. The input and the output of the rotary valve are arranged in different axial planes and at an angle offset to one another. 1. A valve assembly for an antilock system of a brake system of a vehicle , the valve assembly comprising:a cylindrical rotary valve rotatably mounted in a valve block and configured to be activated by a step motor, configured to occupy at least two shifting positions, and having one input and one output,wherein, in one of the shifting positions, at least one duct leading to a wheel brake cylinder can be acted upon with a pressurizing medium via the input, andwherein, in another of the shifting positions, the pressurizing medium can be discharged via the output, andwherein the input and the output of the rotary valve are arranged in different axial planes and at an angle offset to one another.2. The valve assembly as claimed in claim 1 , wherein the input and the output are formed as continuous radial bores of the rotary valve claim 1 , which radial bores are spaced apart axially in accordance with axial planes associated with them and are arranged at an angle of 90° to one another so that these radial bores are active as an input valve or as an output valve claim 1 , wherein a first shifting position for opening the input valve and for simultaneous closure of the output valve corresponds to a first rotational angle position of the rotary valve claim 1 , and wherein a second shifting position for closing the input valve and for ...

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Номер записи: 89
25-01-2018 дата публикации

Brake Apparatus

Номер: US20180022332A1
Автор: Oosawa Toshiya, Sonoda Hiroki, WATANABE Asahi
Принадлежит:

An object of the present invention is to provide a brake apparatus capable of acquiring a sufficient braking force when an abnormality has occurred. The brake apparatus includes a stroke simulator. The stroke simulator is connected to a portion of an oil passage between a master cylinder and a valve. The oil passage connects the master cylinder and a wheel cylinder therebetween. The stroke simulator is configured to generate a brake operation reaction force due to an increase and a reduction in a volume of a positive pressure chamber formed inside the stroke simulator. Brake fluid contained in a first chamber of the master cylinder flows into the positive pressure chamber at the time of control by a by-wire control unit. A fluid amount that can be supplied from the first chamber is larger than a fluid amount that the positive pressure can absorb therein. 117.-. (canceled)18. A brake apparatus comprising:an oil passage connecting a master cylinder and a wheel cylinder therebetween;a valve configured to switch a communication state of the oil passage;a by-wire control unit configured to close the valve to increase a pressure in the wheel cylinder by a hydraulic source provided separately from the master cylinder, according to a state of a brake operation performed by a driver;a pressing force brake unit configured to open the valve to increase the pressure in the wheel cylinder by the master cylinder; anda stroke simulator connected to a portion of the oil passage between the master cylinder and the valve, and configured to generate a brake operation reaction force due to an increase and a reduction in a volume of a positive pressure chamber formed inside the stroke simulator,wherein brake fluid contained in a first chamber of the master cylinder flows into the positive pressure chamber at the time of control by the by-wire control unit, andwherein a fluid amount that can be supplied from the first chamber is larger than a fluid amount that a positive pressure chamber ...

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Номер записи: 90
25-01-2018 дата публикации

METHOD AND APPARATUS OF DETERMINING PERFORMANCE FOR BATTERY FOR MILD HYBRID ELECTRIC VEHICLE

Номер: US20180022341A1
Автор: Jang Hwa Yong
Принадлежит: HYUNDAI MOTOR COMPANY

A method for determining performance of a battery for a mild hybrid electric vehicle may include detecting a speed of the mild hybrid electric vehicle, a position value of an accelerator pedal, a position value of a brake pedal, and a state of charge (SOC) of the battery, determining whether a regenerative braking condition is satisfied, determining a demand braking amount of a driver, determining a regenerative braking allowance, operating a mild hybrid starter and generator (MHSG) to generate regenerative braking torque corresponding to the regenerative braking allowance, determining a target SOC increment amount, determining an actual SOC increment amount, and determining that the performance of the battery is deteriorated when a difference in value between the target SOC increment amount and the actual SOC increment amount is equal to or greater than a reference value. 1. A method for determining performance of a battery for a mild hybrid electric vehicle , the method comprising:detecting, by a data detector, a speed of the mild hybrid electric vehicle, a position value of an accelerator pedal, a position value of a brake pedal, and a state of charge (SOC) of the battery;determining, by a controller, whether a regenerative braking condition is satisfied based on the speed of the mild hybrid electric vehicle, the position value of the accelerator pedal, and the position value of the brake pedal;determining, by the controller, a demand braking amount of a driver based on the speed of the mild hybrid electric vehicle and the position value of the brake pedal when the regenerative braking condition is satisfied;determining, by the controller, a regenerative braking allowance based on the demand braking amount of the driver and the SOC of the battery;operating, by the controller, a mild hybrid starter and generator (MHSG) to generate regenerative braking torque corresponding to the regenerative braking allowance;determining, by the controller, a target SOC increment ...

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Номер записи: 91
10-02-2022 дата публикации

ELECTROMECHANICAL BRAKE SYSTEM

Номер: US20220041143A1
Автор: PUTZ Michael
Принадлежит: GREENBRAKES GMBH

A brake system includes an electromechanical brake having a friction surface, a lining support having a brake lining, an electric motor for moving the lining support, and a control and monitoring unit. The control and monitoring unit ascertains, from a first value ascertained during a first movement of the lining support by the electric motor, an operating parameter of at least one part of the brake, and a second value ascertained during a second movement opposite to the first movement of the lining support, by the electric motor, an operating behavior value for a real operating behavior of the relevant brake, and ascertains, by comparing the at least one real operating behavior value to at least one stored operating behavior expectation, a correction factor. The brake control system is corrected by the one correction factor and a regulator of the electric motor is activated using the corrected brake control signal. 123-. (canceled)24. An electromechanical brake system comprising at least one electromechanical brake , wherein the electromechanical brake comprises:at least one friction surface;at least one lining support having at least one brake lining;at least one electric motor for the predefinable movement of the lining support; andan actuating mechanism, on which the lining support is mounted, and which is connected to the electric motor;wherein the brake system has a control and monitoring unit adapted to receive a braking action request on the input side and to generate a brake control signal on a basis of the braking action request and output it to a regulator of the electric motor, 'to ascertain, from at least one first value, which is ascertained during a first movement of the lining support by means of the electric motor, of at least one first operating parameter of at least one part of the brake, and at least one second value, which is ascertained during a second movement, opposite to the first movement, of the lining support by means of the electric ...

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Номер записи: 92
10-02-2022 дата публикации

Vehicle braking capability determination by braking with fewer than all available braking wheels

Номер: US20220041145A1
Автор: Thomas F. Landers
Принадлежит: Gulfstream Aerospace Corp

An aircraft includes a first landing gear assembly, a second landing gear assembly, a braking circuit, a brake control circuit, and a braking capability circuit. The landing gear assemblies each include a first braking wheel and a second braking wheel. The braking circuit may apply brakes independently to each of the braking wheels. The brake control circuit actuates braking of the first braking wheels in response to initial receipt of a braking command in a first braking phase and restrict braking at the second braking wheels during the first braking phase until the first braking wheels reach an anti-skid limit at an end of the first braking phase. The braking capability circuit determines a braking capability of the aircraft based on an amount of braking applied to reach the anti-skid limit at the first braking wheels.

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Номер записи: 93
10-02-2022 дата публикации

BRAKE CONTROL VALVE ARRANGEMENT

Номер: US20220041147A1
Автор: ANSTEY Nigel, DRUETT Ben, HEMMINGS Mark, PEARE Justin
Принадлежит:

An electropneumatic rail brake system configured to provide emergency braking including an emergency magnet valve which controls air flow into an emergency regulator valve, which valve has an emergency back-up chamber. The emergency regulator provides an output pressure nominally equal to the variable load pressure and no lower than the tare back-up. The magnet valve is closed when energized and when de-energized, pressure is allowed into the emergency back-up chamber, Regulation of the brake cylinder pressure continues during an emergency application such that the brake cylinder pressure applied during an emergency stop does not drop below a predetermined level. In the event of power-loss during an emergency brake stop, the nominal emergency brake pressure is applied to the brake cylinders. 1. An electropneumatic brake system for a rail vehicle configured to provide emergency braking , the electropneumatic brake system comprising:brake cylinders for applying a brake force;emergency regulator valve that has an emergency back-up chamber; andan emergency magnet valve which controls air flow into the emergency regulator valve,wherein the emergency regulator valve being is adapted to provide an output pressure nominally equal to a variable load pressure and no lower than a tare back-up setting,wherein the emergency magnet valve is controlled by a first electronic control unit that regulates brake cylinder pressure,wherein the emergency magnet valve is closed when energised,wherein, when the emergency magnet valve is de-energised, pressure is allowed into the emergency back-up chamber,wherein regulation of a brake cylinder pressure by the first electronic control unit continues during an emergency application such that the brake cylinder pressure applied during an emergency stop does not drop below a predetermined level, andwherein, in the event of power-loss during an emergency brake stop, a nominal emergency brake pressure is applied to the brake cylinders.2. The ...

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Номер записи: 94
10-02-2022 дата публикации

MASTER CYLINDER ARRANGEMENT FOR A BRAKE SYSTEM

Номер: US20220041149A1
Автор: CHIANG I-Che, Feigel Hans-Jorg, KUMARI Priti, TARANDEK Kristijan
Принадлежит:

The present invention relates to a master cylinder arrangement () for a brake system (), comprising a tandem master cylinder () including a master cylinder housing (), a first master piston () movably arranged in the master cylinder housing (), a second master piston () movably arranged in the master cylinder housing (), a balancing piston () movably arranged in the second master piston (), and an elastic pedal feel element (). The invention further relates to a hydraulic system for a brake system as well as a brake system (). 114-. (canceled)15. A master cylinder arrangement for a brake system , comprising a tandem master cylinder including a master cylinder housing , a first master piston movably arranged in the master cylinder housing , a second master piston movably arranged in the master cylinder housing , a balancing piston movably arranged in the second master piston , and an elastic pedal feel element ,wherein the master cylinder housing encloses a first master chamber and a second master chamber, the first master piston being directly displaceable by operating a 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, the elastic pedal feel element being 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 a normal operating mode,wherein the second master piston encloses a balancing chamber, the balancing piston separating the balancing chamber from the second master chamber and the balancing chamber being hydraulically connected to the first master chamber via a balancing path for balancing a first hydraulic pressure in the first master chamber and a second hydraulic pressure in the second master chamber when the second master piston is unlocked ...

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Номер записи: 95
24-01-2019 дата публикации

BRAKING DEVICE FOR VEHICLE

Номер: US20190023242A1
Автор: KAMIYA Yusuke, OZEKI Yoshimitsu
Принадлежит:

The braking device for a vehicle includes an operation judging portion which judges whether or not the operating amount in the increasing stage is equal to or more than a predetermined threshold amount or whether or not an increasing speed of the operating amount in the increasing stage is equal to or more than a predetermined threshold speed and a control portion which selects the first operating mode as the operating mode from a start of the increasing stage until a first timing or a second timing and selects the second operating mode as the operating mode in the increasing stage after the first timing or the second timing and at the same time maintains the drive hydraulic pressure in the increasing stage after the first timing or the second timing. 1. A braking device for a vehicle capable of switching over an operating mode between a first operating mode in which a master piston or a drive piston which drives the master piston is driven by a drive hydraulic pressure based on a hydraulic pressure of a pressure source in response to a detection result of a brake operation by a driver of the vehicle and a second operating mode in which the brake operation by the driver of the vehicle is mechanically transmitted to the master piston , wherein the braking device for the vehicle comprises:an operation judging portion which judges, in a brake stage including an increasing stage where an operating amount of the brake operation by the driver of the vehicle increases from a value of zero and a decreasing stage where the operating amount decreases to the value of zero, whether or not the operating amount in the increasing stage is equal to or more than a predetermined threshold amount or whether or not an increasing speed of the operating amount in the increasing stage is equal to or more than a predetermined threshold speed; anda control portion which selects the first operating mode as the operating mode, at least from a start of the increasing stage until a first timing ...

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Номер записи: 96
25-01-2018 дата публикации

Sensor Housing for a Wheel Sensor Device, Wheel Sensor Device and Connecting Component Thereof

Номер: US20180024156A1
Автор: Bernd Tepass, Mirko Scheer, Oliver Hahn, Robert Remus, Wolfgang Welsch
Принадлежит: ROBERT BOSCH GMBH

A sensor housing for a wheel-sensor device for a vehicle includes a first receiving aperture, a second receiving aperture, a first rotational-speed sensor, a rotary transducer, and a second rotational-speed sensor. The first sensor is configured to be inserted into the first aperture, and the sensor housing with the inserted first sensor is configured to be mounted on the vehicle. The rotary transducer is configured to co-rotate with a vehicle wheel and to trigger a change in a first physical quantity. The second sensor is configured to be inserted adjacent to the first sensor in the first aperture or in the second aperture, and the sensor housing, with the inserted first and second sensors, is configured to be mounted on the vehicle. The rotary transducer co-rotating with the rotating wheel triggers the change in the first physical quantity and a change in a second physical quantity.

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Номер записи: 97
23-01-2020 дата публикации

ELECTRONICALLY CONTROLLABLE BRAKING SYSTEM AND METHOD FOR CONTROLLING THE ELECTRONICALLY CONTROLLABLE BRAKING SYSTEM

Номер: US20200023820A1
Автор: VAN THIEL Julian
Принадлежит:

An electronically controllable brake system for a vehicle includes at least one service brake circuit with service brakes and a service brake control module. A service-brake brake pressure can be fed to the service brakes, and the service-brake control module is configured to generate a service-brake control signal as a function of a braking specification. The service-brake brake pressure can be generated as a function of the service-brake control signal and specified to the service brakes, for the implementation of the braking specification via the at least one service brake circuit, under electrical control. The brake system further includes a trailer control valve with a trailer control module. The trailer control module is configured to receive and process an electronically communicated braking specification and the trailer control valve is configured to generate and output, under the control of the trailer control module, a redundancy control pressure. 1. An electronically controllable brake system for a vehicle , the electronically controllable brake system comprising:at least one service brake circuit with service brakes and a service brake control module, wherein a service-brake brake pressure can be fed to the service brakes, and the service-brake control module is configured to generate a service-brake control signal as a function of a braking specification, wherein the service-brake brake pressure can be generated as a function of the service-brake control signal and specified to the service brakes, for the implementation of the braking specification via the at least one service brake circuit, under electrical control, anda trailer control valve with a trailer control module wherein the trailer control module is configured to receive and process an electronically communicated braking specification and the trailer control valve is configured to generate and output, under the control of the trailer control module, a redundancy control pressure as a function ...

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Номер записи: 98
23-01-2020 дата публикации

VEHICLE BRAKE SYSTEM USING ELECTRIC PARKING BRAKE IN FAILED BOOST CONDITIONS

Номер: US20200023825A1
Автор: Bunin Seth, Harman Patrick, Littlejohn Deron, Mitchell Craig, Timm Greg
Принадлежит: ZF Active Safety US Inc.

A brake system for a vehicle comprises a driver operable brake pedal coupled to control a brake pressure generating unit to supply hydraulic brake pressure to front and rear hydraulically actuated wheel brakes, and wherein the rear wheel brakes are also configured to be electrically actuated; a sensor arrangement for monitoring the driver's braking intent; the brake system operable in a first mode wherein the front and rear brakes are both hydraulically actuated, and a second mode wherein the front brakes are hydraulically actuated and the rear brakes are electrically actuated, the rear brakes include a caliper assembly including brake pads operable to engage a brake rotor to brake the vehicle, the caliper assembly including a hydraulic actuating mechanism and an electric actuating mechanism, a control connected to the sensor arrangement for operating the electric actuating mechanism to actuate the rear brakes as a function of the driver's braking demand. 1. A vehicle brake system for a vehicle comprising:a brake pedal operable by a vehicle driver and coupled to control a brake pressure generating unit to supply hydraulic brake pressure to front and rear hydraulically actuated wheel brakes, and wherein the rear wheel brakes are also configured to be electrically actuated;a sensor arrangement for monitoring the driver's braking intent;the brake system operable in a first mode wherein the front and rear brakes are both hydraulically actuated, and a second mode wherein the front brakes are hydraulically actuated and the rear brakes are electrically actuated,the rear brakes include a caliper assembly including brake pads operable to engage a brake rotor to brake the vehicle, the caliper assembly including a hydraulic actuating mechanism and an electric actuating mechanism,a control connected to the sensor arrangement for operating the electric actuating mechanism to actuate the rear brakes as a function of the driver's braking demand.2. The brake system according to ...

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Номер записи: 99
23-01-2020 дата публикации

ANTISKID OPERATION DURING DEGRADED OPERATION

Номер: US20200023949A1
Автор: Cahill Eric Daniel
Принадлежит: GOODRICH CORPORATION

A braking system may include a controller, a first wheel and a second wheel. The first wheel may be laterally displaced from the second wheel by a first distance. A first wheel speed sensor may be coupled to the first wheel and a second wheel sensor may be coupled to the second wheel. The controller may be configured to determine at least one of a slip ratio, a coefficient of friction, or a braking pressure of the second wheel in response to failure of the first wheel speed sensor. The controller may be configured to calculate a consistency value of the at least one of the slip ratio, the coefficient of friction, or the braking pressure. The controller may be configured to adjust a braking pressure of the first wheel speed sensor based upon the consistency value and the first distance. 1. A braking system comprising:a controller;a first wheel and a second wheel, the first wheel displaced from the second wheel in at least one of a forward direction or an aft direction by a second distance;a first wheel speed sensor coupled to the first wheel and a second wheel sensor coupled to the second wheel;wherein the controller is configured to determine at least one of a slip ratio, a coefficient of friction, or a braking pressure of the second wheel in response to failure of the first wheel speed sensor;wherein the controller is configured to calculate a consistency value of the at least one of the slip ratio, the coefficient of friction, or the braking pressure;wherein the controller is configured to adjust a braking pressure applied to the first wheel based upon the consistency value and the second distance.2. The braking system of claim 1 , wherein the controller is configured to adjust the braking pressure applied to the first wheel as a proportion of the braking pressure applied to the second wheel.3. The braking system of claim 1 , wherein the first wheel is disposed on a different landing gear than the second wheel.4. The braking system of claim 1 , wherein the ...

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Номер записи: 100