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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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Применить Всего найдено 29635. Отображено 100.
05-01-2012 дата публикации

Method and device for providing braking assistance in a motor vehicle after an initial collision

Номер: US20120004819A1
Автор: Gilberto Burgio, Jianbo Lu, Monika Derflinger, Otto Hofmann, Peter W.A. Zegelaar, Roland Schaefer
Принадлежит: Individual

A method and system for providing braking assistance in a motor vehicle after an initial collision involves detecting an initial collision, pre-charging a brake system, detecting an intent to brake on the part of a driver, and providing assistance to a braking process by means of a braking assistance system on the basis of the detection of the initial collision and the detection of intent to brake on the part of the driver.

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Номер записи: 1
12-01-2012 дата публикации

Control device and control method for four-wheel drive vehicle

Номер: US20120010798A1
Автор: Kohei Ito
Принадлежит: Toyota Motor Corp

In a control for a four-wheel drive vehicle that is able to travel in a non-differential mode in which differential rotation between front wheels and rear wheels is limited, it is determined whether a drive train is placed in a twisted state where a twisting torque resulting from a twist accumulated in the drive train is larger than or equal to a predetermined torque while the vehicle is cornering in the non-differential mode, and braking force is applied to the front wheels by a wheel brake device when it is determined that the drive train is placed in the twisted state.

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Номер записи: 2
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: 3
26-01-2012 дата публикации

Fixing structure of auxiliary braking device for utility vehicle

Номер: US20120018261A1
Автор: Byoung Soo Kwon, Dai Seung SON
Принадлежит: Daedong Industrial Co Ltd, Hankuk Chain Ind Co Ltd

A fixing structure of an auxiliary braking device for a utility vehicle is provided, which includes a brake disc mounted on a driving shaft at which an output of a transmission is received; a brake pad mounted at a vehicle body in such a manner as to compress the brake disc by the cooperative operation with the manipulation of a brake lever mounted at a driver seat and to perform a braking operation; and a spline coupling part mounted at one end of the driving shaft in such a manner as to be fixedly coupled to a rear axle input shaft of a rear wheel differential gear so as to have the restriction in the axial movement thereof.

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Номер записи: 4
26-01-2012 дата публикации

Brake system and method

Номер: US20120022757A1
Автор: Chang-Jung Lee, Chih-Ping Lo, Hou-Hsien Lee
Принадлежит: Hon Hai Precision Industry Co Ltd

A brake system and method includes adjusting an electronic apparatus on a bracket of a bicycle to be in a horizontal state. If the bicycle is downsloped and a gradient value of the electronic apparatus exceeds or equals a predetermined gradient value, a brake operation of the bicycle is detected. If the brake operation is improper, a brake command is sent to a brake device of the brake system, and brake cables of a front wheel and/or a rear wheel of the bicycle are controlled by the brake device according to the brake command.

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Номер записи: 5
02-02-2012 дата публикации

Method and system for measuring vehicle speed based on movement of video camera

Номер: US20120026329A1
Автор: Michael Y. Vorobiev
Принадлежит: Topcon Positioning Systems Inc

A digital video camera is placed on a vehicle. The video camera is attached to the vehicle and is directed to a surface at a certain angle to the surface. The camera angle can change while vehicle is in motion. The camera angle is constantly measured by angular sensor (i.e., inclinometer). Images of the surface are projected onto a video matrix and transformed into a sequence of digital frames that are formed at a pre-set time interval. A speed of the video camera relative to the surface is calculated as a ratio of an off-set between the adjacent frames and the time interval between the frames. Then a known relative speed of the vehicle can be corrected by multiplication of the height of the camera (above the surface) by a coefficient that equals a ratio of the known vehicle speed and the measured camera speed.

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Номер записи: 6
09-02-2012 дата публикации

Drive assisting device

Номер: US20120035825A1
Автор: Mitsuhiko Morita
Принадлежит: Toyota Motor Corp

A radar sensor detects a traveling state of a host vehicle. An inter-vehicle control ECU gives the amount of operation for the predetermined amount of control of the host vehicle so that the traveling state of the host vehicle detected by the radar sensor becomes a predetermined state. The amount of operation given by the inter-vehicle control ECU is reduced as a kind of restriction when the amount of operation given by the inter-vehicle control ECU becomes equal to or larger than a predetermined value. As a result, it is possible to reduce the dependence of the driver on the device.

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Номер записи: 7
16-02-2012 дата публикации

Traction Control Device

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

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

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Номер записи: 8
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: 9
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: 10
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: 11
05-07-2012 дата публикации

Method for assisting a driver of a motor vehicle

Номер: US20120173068A1
Автор: Florian Raisch, Michael Seiter
Принадлежит: ROBERT BOSCH GMBH

In a method for assisting a driver of a motor vehicle in a driving maneuver, the surroundings of the vehicle are recorded, and it is checked whether at least one object is located in the surroundings of the vehicle, and it is ascertained subsequently whether the vehicle is approaching the object, and a warning to the driver is output if the vehicle approaches the object up to a critical distance. The driver is warned by a warning jerk, and after the warning jerk has taken place, the speed of the vehicle is automatically reduced.

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Номер записи: 12
26-07-2012 дата публикации

Methods and systems for improved detection of minispare tires

Номер: US20120191299A1
Автор: Nachiket D. Patil
Принадлежит: ROBERT BOSCH GMBH

A method of detecting a minispare tire in a vehicle having a vehicle control system. The method includes detecting a rotational velocity of each of a plurality of wheels of the vehicle; determining whether a minispare tire is mounted on the vehicle based on the rotational velocities detected at each of the plurality of wheels; adjusting the vehicle control system if a minispare tire is mounted on the vehicle; sensing a hydraulic pressure of a braking system of the vehicle; and suspending determination of whether a minispare tire is mounted on the vehicle if the hydraulic pressure exceeds a predetermined critical pressure level.

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Номер записи: 13
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: 14
02-08-2012 дата публикации

System and method for adjusting braking pressure

Номер: US20120197507A1
Автор: Charles E. Ross, Robert J. Custer, Srikiran Kosanam, William P. Amato
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

A vehicle control system includes a forward vehicle sensor transmitting a forward vehicle message based on a distance to a forward vehicle. An adaptive cruise controller receives the forward vehicle message and receives at least one additional message indicating a respective status of the vehicle, the adaptive cruise controller sets a braking pressure for an adaptive cruise controller braking event above a default braking pressure if the adaptive cruise controller determines, based on the at least one of the additional messages, that the vehicle will maintain stability during the adaptive cruise controller braking event.

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Номер записи: 15
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: 16
09-08-2012 дата публикации

Brake assist system

Номер: US20120203435A1
Автор: Linus Helgesson, Mattias Braennstroem, Mikael Christiansson
Принадлежит: Volvo Car Corp

A method for automatic braking of a vehicle in order to avoid collision with road users is contemplated. The method may be used in avoiding or mitigating collisions with users in adjacent lanes. The method may include monitoring adjacent lanes of a road for detecting the relative approach of road users in said adjacent lanes to said vehicle, and providing a signal indicative thereof, detecting a left or right hand turn of the vehicle and providing a signal indicative thereof, calculating, in response to said signals, if a collision with an approaching road user is imminent, and providing a signal indicative thereof, and activating, in response to the signal that a collision with the approaching road user is imminent, the brakes of the vehicle.

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Номер записи: 17
09-08-2012 дата публикации

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

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

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

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Номер записи: 18
23-08-2012 дата публикации

System and Method for Responding to Driver Behavior

Номер: US20120212353A1
Автор: Kin Fung, Timothy J. Dick
Принадлежит: Honda Motor Co Ltd

Methods of assessing driver behavior include monitoring vehicle systems and driver monitoring systems to accommodate for a driver's slow reaction time, attention lapse and/or alertness. When it is determined that a driver is drowsy, for example, the response system may modify the operation of one or more vehicle systems. The systems that may be modified include: visual devices, audio devices, tactile devices, antilock brake systems, automatic brake prefill systems, brake assist systems, auto cruise control systems, electronic stability control systems, collision warning systems, lane keep assist systems, blind spot indicator systems, electronic pretensioning systems and climate control systems.

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Номер записи: 19
23-08-2012 дата публикации

System and method for determining a safe maximum speed of a vehicle

Номер: US20120215412A1
Автор: David Pivonka, Shafer Seymour
Принадлежит: Continental Automotive Systems Inc

A system for determining a safe maximum speed of an vehicle has a processor and a global positioning system receiver in communication with the processor. The processor is configured to determine a grade and distance to an end of an upcoming or a current road segment the vehicle is traveling on based on the global positioning system information received from the global positioning system receiver. The processor is further configured to determine the safe maximum speed of the vehicle based on the distance to the end and pitch of the grade of the upcoming or current road segment the vehicle is traveling on and the braking efficiency of the vehicle.

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Номер записи: 20
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: 21
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: 22
11-10-2012 дата публикации

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

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

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

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Номер записи: 23
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: 24
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: 25
11-10-2012 дата публикации

Method for operating a vehicle and vehicle

Номер: US20120259523A1
Автор: Christian Haag, Markus Beisswenger, Oliver Dehren
Принадлежит: ROBERT BOSCH GMBH

In a method for operating a vehicle which has a first axle, a second axle, a unit for determining slipping of at least one wheel of the second axle on a ground surface, and a braking device associated with the wheel, a drive torque is applied to the first axle and the second axle via a central differential, and, in the event of slipping of the wheel, a braking torque required to prevent the slipping being determined. A setpoint braking torque is set on the braking device, which is less than the required braking torque, and the part of the drive torque supplied to the first axle is increased.

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Номер записи: 26
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: 27
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: 28
18-10-2012 дата публикации

Driving control device

Номер: US20120265431A1
Автор: Kou Sato, Masahiro Kobayashi, Yasuhisa Hayakawa
Принадлежит: Nissan Motor Co Ltd

A driving control device according to the present invention activates a control for suppressing sideways movement of a vehicle towards a side object, when the side object present to the side of the vehicle as well as towards the rear of the vehicle is detected. Also, the activation of the control is suppressed when, in the absence of detection of the side object, the vehicle starts entering an adjacent lane in order to change lanes.

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Номер записи: 29
08-11-2012 дата публикации

Load Sensor for a Vehicle Electronic Stability System

Номер: US20120283918A1
Автор: Mario Dagenais
Принадлежит: BOMBARDIER RECREATIONAL PRODUCTS INC

A vehicle comprising a seat defining a driver seat portion and a passenger seat portion, an electronic stability system, adapted to receive inputs from a load sensor, a wheel rotation sensor and a lateral acceleration sensor, the electronic stability system adapted to provide outputs to at least one of the brake system for braking the vehicle, and the engine control unit to change the power output transmitted to the wheels by the engine, the electronic stability system using a first calibration to determine the outputs when the load sensor is in a non-loaded state and a second calibration to determine the outputs when the load sensor is in a loaded state.

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Номер записи: 30
15-11-2012 дата публикации

Vehicle control apparatus

Номер: US20120290179A1
Автор: Kenichi Okaya, Masashi Takagi, Michihito Shimada, Toshiya Oishi, Tsutomu Miyazaki, Yuki Minase
Принадлежит: Toyota Motor Corp

Disclosed is a vehicle control apparatus which can prevent the deterioration of drivability. The ECU can set a control accelerator opening degree to be converted when a control permission condition is established. The control accelerator opening degree is equal to or larger than an accelerator lower limit which is larger than an idle determination value for determining an automatic stopping of an engine by an eco-run. The control accelerator opening degree thus set can prevent the drivability from being deteriorated without the automatic stopping of the engine being caused even if the accelerator opening degree is converted to reduce the torque of the engine with the establishment of the control permission condition.

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Номер записи: 31
29-11-2012 дата публикации

Controlling Wheel Hop in a Vehicle Axle

Номер: US20120303236A1
Автор: Brian J. Andonian, David A. Robertson, Gary M. Pietrzyk, Jacob M. Povirk, Jihong Guo, Patrick Meloche
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for controlling wheel hop at a vehicle axle includes determining that one of a difference between average front and rear wheel speeds exceeds a reference difference, a frequency of a signal produced by an accelerometer mounted on the axle exceeds a reference frequency, and a frequency of a lock ring torque exceeds a second reference frequency; pulsing pressure in the wheel brakes of the axle; and reducing engine torque.

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Номер записи: 32
06-12-2012 дата публикации

Acceleration/deceleration detecting system

Номер: US20120310473A1
Автор: Yuji Yoshii
Принадлежит: Toyota Motor Corp

An acceleration/deceleration detecting system includes an acceleration/deceleration detector configured to be disposed in a measurement object and detect acceleration/deceleration of the measurement object, an acceleration/deceleration device configured to accelerate or decelerate the measurement object, and a calculation device configured to determine that a detection value of the acceleration/deceleration detector is an offset error or a detection error of the acceleration/deceleration detector, when an actual acceleration/deceleration direction of the measurement object is different from an acceleration/deceleration direction shown by a detection value of the acceleration/deceleration detector in a state that the measurement object is accelerated or decelerated by the acceleration/deceleration device.

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Номер записи: 33
13-12-2012 дата публикации

Motor-vehicle driving style estimating system and method

Номер: US20120316767A1
Автор: Andrea Corti, Sergio Mattero Savaresi, Vincenzo Manzoni
Принадлежит: TELEPARKING Srl

A motor-vehicle driving style estimating system ( 100 ) of a motor-vehicle, comprising a measuring apparatus ( 1 ) of a kinematic signal representative of a motor-vehicle motion quantity trend (v(t)). The system is characterized in that it further comprises a kinematic signal low-pass filtering module ( 8 ) configured to provide a corresponding reference filtered signal associated with a reference trend of said quantity (v F (t)). Furthermore, the system comprises a kinematic signal and reference filtered signal processing module ( 2 ) configured to provide an indication of the driving style depending on a comparison of the motor-vehicle motion trend with the reference trend.

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Номер записи: 34
20-12-2012 дата публикации

Motion Control Unit for Vehicle Based on Jerk Information

Номер: US20120323445A1
Автор: Makoto Yamakado, Masato Abe, Shinya Imura
Принадлежит: HITACHI LTD

In a motion control system for a vehicle including control means for controlling a yaw moment of the vehicle; first detection means for detecting a longitudinal velocity (V) of the vehicle; second detection means for detecting a lateral jerk (Gy_dot) of the vehicle; and third detection means for detecting a yaw angular acceleration (r_dot) of the vehicle, the yaw moment of the vehicle is controlled by the control means so that a difference between the yaw angular acceleration (r_dot) detected by the third detection means and a value (Gy_dot/V) obtained by the lateral jerk (Gy_dot) of the vehicle detected by the second detection means by the longitudinal velocity (V) detected by the first detection means becomes small.

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Номер записи: 35
20-12-2012 дата публикации

Vehicle state calculating device and vehicle control device

Номер: US20120323460A1
Автор: Ryosuke Okubo
Принадлежит: Toyota Motor Corp

An actual slip ratio of a wheel is estimated from a slip ratio speed of a wheel calculated according to a running state of a vehicle based on relationship between a slip ratio of the wheel of the vehicle and the slip ratio speed of the wheel set in advance. Typically, the actual slip ratio is estimated supposing that the slip ratio of the wheel calculated according to the running state of the vehicle, when a change rate of the slip ratio speed becomes larger than a predetermined value set in advance, is a reference slip ratio determined in advance according to the relationship between the slip ratio and the slip ratio speed set in advance. Therefore, it is possible to improve control accuracy when controlling a state of the vehicle by decreasing an effect of operation by a driver and a road surface, for example.

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Номер записи: 36
27-12-2012 дата публикации

Reducing The Steering Torque During Braking Maneuvers

Номер: US20120330525A1
Автор: Achim Schoen, Robert Kornhaas
Принадлежит: ROBERT BOSCH GMBH

A method for reducing the steering torque in a motor vehicle in a driving situation in which the vehicle is being braked and steered at the same time. By shifting the brake force to the rear wheels, the front wheels become easier to steer compared to a standard brake force distribution. The maximum required power of an electric steering assistance system is thus greatly reduced.

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Номер записи: 37
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: 38
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: 39
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: 40
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: 41
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: 42
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: 43
28-02-2013 дата публикации

Method for reducing the energy absorbed by a vehicle in a collision and a system for implementing the method

Номер: US20130054103A1
Автор: Richie HERINK
Принадлежит: Individual

A system for a vehicle that executes a method to reduce the energy absorbed by the vehicle due to a collision, the method including actively decelerating the vehicle when it is determined that a collision with an object is possible, terminating active deceleration to allow the vehicle to move forward when it is determined that a collision with the object is inevitable just before the collision, and allowing the vehicle to make contact with the object and move generally in an opposite direction after the vehicle makes contact with the object.

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Номер записи: 44
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: 45
07-03-2013 дата публикации

Brake control device

Номер: US20130060433A1
Автор: Daisuke Tokumochi, Koji Fujiki, Masaki Maruyama, Masayoshi Takeda
Принадлежит: Advics Co Ltd, Denso Corp

When the vehicle decelerates on the ascending slope, a required brake axle torque is calculated in accordance with vehicle deceleration, so that the swinging back is suppressed. At start timing after that, initial and final values of the required brake axle torque and a correction duration are determined. During the correction duration from the start timing, the required brake axle torque is decreased from the initial value to the final value. Then, based on change in a detected vehicular speed at or before a time which is a last moment of a period in which the detected vehicular speed detected based on detection signals of the wheel speed sensors are equal to or larger than a minimum detectable vehicular speed, a stop time at which an actual vehicle speed becomes zero is estimated, a period from the start time to the stop time is identified as the correction duration.

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Номер записи: 46
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: 47
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: 48
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: 49
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: 50
30-05-2013 дата публикации

Brake Control Apparatus

Номер: US20130138316A1
Автор: Kotaro Koyama
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A brake control apparatus includes a parking-brake mechanism configured to apply braking force to left and right wheels of one of front and rear of a vehicle by a switching operation of a driver; a braking-force generating section configured to apply braking force independently to the wheels in accordance with a state of the vehicle; a moving-state judging section configured to judge whether or not the vehicle is moving; and a braking-force control unit configured to control the braking-force generating section. The braking-force control unit includes a braking-force cooperative control section configured to restrict an actuation of the parking-brake mechanism and to cause the braking-force generating section to generate braking force in a case that the parking-brake mechanism is required to be actuated by the switching operation when the moving-state judging section determines that the vehicle is moving.

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Номер записи: 51
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: 52
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: 53
18-07-2013 дата публикации

Guardian Warning System

Номер: US20130181825A1
Автор: Jerry Johnson, Nadejda Ivanovna Johnson
Принадлежит: Individual

A Guardian Warning System comprising a multi-axis accelerometer, a micro-controller, an audible alarm, a visual indication and a GPS chip. The Guardian Warning System provide detection of the angle, degree or slop of ATV, UTV and any vehicle type or any other object where it needs to be detected. The Guardian Warning System will sound an audible alarm and flash a LED light when said Degree, Angle or Slope is reached. The said elements contained in a molded plastic container, which can be attached to ATVs, UTVs and any vehicle type or any other objects where the Degree, Angle or Slope needs to be detected.

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Номер записи: 54
25-07-2013 дата публикации

Method for securing an electrically operated parking brake

Номер: US20130190970A1
Автор: Dieter Blattert, Frank Baehrle-Miller, Oliver Leibfried
Принадлежит: ROBERT BOSCH GMBH

A method for securing an electrically operated parking brake, characterized by the following steps: monitoring an operating variable which is relevant for the proper functioning of the parking brake; ascertaining/determining whether the operating variable exceeds a predefined threshold value; and prompting the driver to carry out a certain action as a function of the value of the operating variable, the action including the engagement of the gear or the operation of the foot service brake. Also described is a control unit for carrying out the described method.

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Номер записи: 55
01-08-2013 дата публикации

Tire temperature control device

Номер: US20130192814A1
Автор: Ryosuke Okubo
Принадлежит: Toyota Motor Corp

A tire temperature control device includes a temperature control unit that controls at least one of a tire temperature of front wheels and a tire temperature of rear wheels based on a temperature difference between the temperature of the tire on the front wheel and the temperature of the tire on the rear wheel of a vehicle. The temperature control unit controls, for example, the tire temperature corresponding to predetermined temperatures based on temperature characteristics that are related to maneuverability of the vehicle, fuel economy of the vehicle, and a friction coefficient.

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Номер записи: 56
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: 57
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: 58
29-08-2013 дата публикации

Method for protecting a vehicle with an automatic parking brake

Номер: US20130226425A1
Автор: Michael Bachmann, Raphael Oliveira
Принадлежит: ROBERT BOSCH GMBH

A method for holding a vehicle at a standstill includes a first phase in which the brake pressure at the wheel brakes is retained so that the vehicle is held automatically by the service brake, and the braking force is then transferred to a parking brake so that in a second phase the vehicle is held solely by the parking brake. A risk inherent in this transfer is that the vehicle may begin to slip. The distance over which the vehicle slides in uncontrolled fashion can be made substantially shorter if, in the second phase in which the vehicle is being held by the parking brake, the movement of the vehicle is monitored by sensors, and brake pressure is automatically built up by way of an actuator as soon as the fact that the vehicle is rolling away has been detected.

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Номер записи: 59
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: 60
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: 61
26-09-2013 дата публикации

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

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

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

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Номер записи: 62
03-10-2013 дата публикации

Motion stabilizer for tractor

Номер: US20130261840A1
Автор: Kazuaki Miyata, Takeshi Kojima, Tomoyuki Futamura
Принадлежит: Honda Motor Co Ltd, Nissin Kogyo Co Ltd

A pendular motion determination unit of a motion stabilizer for a tractor includes a parameter computation unit configured to compute a determination parameter PA indicative of a quantity of change in an actual yaw rate Y, a threshold value setting unit configured to compute a threshold value PAth for the determination parameter PA, and a determination unit configured to determine that a pendular motion caused by swaying motion of a trailer is imparted, if the determination parameter PA is greater than the threshold value PAth. At least one of PAth and PA is changed based upon a correlation of a value related to a lateral acceleration based yaw rate Yg with a value related to the standard yaw rate Ys and a correlation of a value related to the actual yaw rate Y with a value related to the standard yaw rate Ys.

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Номер записи: 63
03-10-2013 дата публикации

Vehicle brake hydraulic pressure controller

Номер: US20130261923A1
Автор: Yutaka Harada
Принадлежит: Nissin Kogyo Co Ltd

An embodiment provides a vehicle brake hydraulic pressure controller capable of carrying out a brake hydraulic pressure control in a plurality of control modes depending on a situation of a vehicle. The vehicle brake hydraulic pressure controller includes: proportional solenoid valves provided in passages connecting a master cylinder and wheel brakes of the vehicle, and configured to be controlled at preset drive frequencies; a control mode selecting section configured to select, in the case that two or more control modes are requested simultaneously, one of the two or more requested control modes; and a frequency selecting section configured to select one of the drive frequencies correspondingly with the one of the two or more requested control modes selected by the control mode selecting section.

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Номер записи: 64
03-10-2013 дата публикации

Information processing apparatus, information processing method, and program

Номер: US20130261962A1
Автор: Tomohisa Takaoka
Принадлежит: Sony Corp

There is provided an information processing apparatus including a traveling pitch acquiring section configured to acquire a current traveling pitch, and a speed acquiring section configured to acquire a current traveling speed extracted from an association table showing correspondence between a traveling pitch and a traveling speed based on the current traveling pitch.

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Номер записи: 65
17-10-2013 дата публикации

Vehicle brake system

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

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

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Номер записи: 66
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: 67
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: 68
05-12-2013 дата публикации

Vehicle braking control device and vehicle braking control method

Номер: US20130325280A1
Автор: Masato Terasaka, Yusuke Takeya
Принадлежит: Advics Co Ltd

A brake ECU acquires the vehicle load (WW) (step S 142 ), and sets a higher start-time criterion value (KT2) when the load (WW) is heavy than when the load (WW) is light (step S 144 ). The brake ECU initiates auxiliary control when the period since the deceleration of the vehicle exceeded a first deceleration determination value is less than or equal to the start-time criterion value (KT2) and the G sensor value exceeds a second deceleration determination value.

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Номер записи: 69
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: 70
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: 71
13-02-2014 дата публикации

Integrated trailer brake control system and method using a learned relationship

Номер: US20140046565A1
Автор: Daniel Sigfus Maitlen
Принадлежит: ROBERT BOSCH GMBH

A trailer brake control method for a vehicle towing a trailer. The method may include determining a number (N) of vehicle operating points during a first braking event when the vehicle is not towing the trailer by determining N brake operating points; determining an acceleration operating point for each of the N brake operating points; and determining a first relationship between brake pressure and vehicle acceleration based on the N vehicle operating points. The method also includes determining a number (M) of vehicle operating points during a second braking event when the vehicle is towing the trailer; determining a current brake operating point; and determining a trailer brake command signal based on at least the first relationship, the M vehicle operating points, and the current brake operating point.

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Номер записи: 72
13-02-2014 дата публикации

Integrated trailer brake control system and method for controlling a brake force

Номер: US20140046566A1
Автор: Daniel Sigfus Maitlen
Принадлежит: ROBERT BOSCH GMBH

A trailer brake control method that includes determining, based on information from a vehicle speed sensor, a current vehicle speed of a vehicle; and regardless of the current vehicle speed, determining, using a processing unit, a minimum trailer brake control value (MTBCV) based on the equation MTBCV=R1−Cth root(the current vehicle speed)/R2, wherein the minimum trailer brake control value corresponds to a minimum braking force at the current vehicle speed, R1 is a real number less than 1.0, C is an integer greater than 2, and R2 is a real number greater than 1.0. The method also includes determining, using the processing unit, a trailer brake command signal based on the minimum trailer brake control value; and operating brakes of a trailer connected to the vehicle at or above the minimum braking force by transmitting the trailer brake command signal from the vehicle to a trailer.

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Номер записи: 73
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: 74
20-02-2014 дата публикации

Method for Detecting Critical Driving Situations of Lorries or Passenger Vehicles and Method for Avoiding Collisions

Номер: US20140052355A1
Автор: Christian Stelzer, Sascha Heinrichs-Bartscher
Принадлежит: LUCAS AUTOMOTIVE GMBH

A method for detecting critical driving situations of motor vehicles, in particular for preventing collisions with an object in front of an own vehicle, has the following steps: detection of a current vehicle acceleration and a current vehicle velocity of an own vehicle; specification of an acceleration profile depending on driving variables of the own vehicle; assumption of a time progression of a foreseeable acceleration of the own vehicle based on its current acceleration; determination of a path profile of the own vehicle from the time progression of the foreseeable acceleration; acquisition of a current distance and a current relative velocity of an object in front of the own vehicle; calculation of the current absolute velocity of the object as well as of the absolute current acceleration of the object; assumption of a time progression of a foreseeable acceleration of the object based on its current acceleration; determination of a path profile of the object from the time progression of the foreseeable acceleration; comparison of the path profile of the own vehicle with the path profile of the object; and if the two path profiles intersect, determination of a probable collision time of the own vehicle with the object; establishment of a time before the probable collision time comparison of this time with the probable collision time determined; and if the probable collision time lies before the established time, issue of a warning to the driver of the own vehicle.

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Номер записи: 75
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: 76
27-02-2014 дата публикации

System and method for operating a vehicle brake system

Номер: US20140058639A1
Автор: Ian Moore, Rudolf Daniels, Thomas Svensson
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for operating a service brake system in a vehicle is described. The method includes the stages of determining whether the vehicle is stationary, and detecting whether the brake pressure exceeds a predetermined value in that stationary state. If the brake pressure value exceeds the predetermined value, as part of final stage, the method includes regulating the brake pressure to a predefined limiting value, where the predefined limiting value is sufficient to maintain the vehicle in that stationary state.

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Номер записи: 77
06-03-2014 дата публикации

Brake pressure apply

Номер: US20140067223A1
Автор: Erick Michael Lavoie, Keith Glenn Mattson, Thomas Salmon
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for brake pressure apply in a hydraulic brake system includes commanding a cage clearance reduction phase and commanding a wheel control phase subsequent to the cage clearance reduction phase. Accordingly, the cage clearance is reduced prior to entering the wheel control phase. A method for cage clearance reduction in a hydraulic brake system for roll stability control is also provided.

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Номер записи: 78
06-01-2022 дата публикации

BRAKE CONTROL DEVICE AND BRAKE SYSTEM

Номер: US20220001845A1
Автор: AJIMA Toshiyuki, Goto Daisuke, ITAKURA Kyoshiro, Ito Takahiro, Matsubara Kenichiro, MATSUURA Makoto
Принадлежит: Hitachi Automotive Systems, Ltd.

An object of the present invention is to provide a brake control device and a brake system capable of braking with a shortened braking response when shifting from non-braking to braking. A brake control device includes a command value calculation unit that calculates an operation command value required to make a pressing force by which a brake pad is pressed against a brake disc reach a target thrust value. The command value calculation unit includes: a clearance command calculation unit that calculates a command value required for contact between the brake pad and the brake disc ; and a thrust command calculation unit that calculates a command value required for reaching the target thrust from a state where the brake pad and the brake disc are in contact with each other. When calculating the operation command value from a state where the brake pad and the brake disc are separated, the command value calculation unit calculates the operation command value by integrating the command value calculated from the clearance command calculation unit and the command value calculated from the thrust command calculation unit 1. A brake control device , which is mounted on a brake system at least including a piston that moves in a linear motion direction by rotation of an electric motor , a brake pad that is pressed against a brake disc by the movement of the piston , and a position detection unit that detects a position of the piston , and controls a motion of the piston , comprisinga command calculation unit that calculates an operation command value for making a pressing force by which the brake pad is pressed against the brake disc reach a target thrust value,wherein the command calculation unit includes:a clearance command calculation unit that calculates a command value required for contact between the brake pad and the brake disc; anda thrust command calculation unit that calculates a command value required for reaching a target thrust from a state where the brake pad and ...

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Номер записи: 79
06-01-2022 дата публикации

Steering Control Device, Steering Control Method, and Steering Control System

Номер: US20220001921A1
Автор: Hiroshi Nakano, Kazuya Takahashi, Tomoaki Fujibayashi
Принадлежит: Hitachi Astemo Ltd

In a steering control device, method, and system, a command is calculated for generating a periodical yaw moment having a phase opposite to oscillating motion based on information on oscillating motion which occurs in a vehicle combination composed of a vehicle and a trailer, and based on the calculated command, a first steering angle command for controlling a steering angle of the front wheels of the vehicle is output to a front wheel steering control unit and a second steering angle command for controlling a steering angle of the rear wheels of the vehicle is output to a rear wheel steering control unit, so that the oscillating motion can be suppressed.

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Номер записи: 80
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: 81
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: 82
07-01-2021 дата публикации

Vehicle control system

Номер: US20210001835A1
Автор: Ryoma Kanda, Yuya Goto
Принадлежит: Honda Motor Co Ltd

A vehicle control system (30) for controlling a behavior control device (20) that controls a behavior of a vehicle (1), comprising: a feed-forward computing unit (71) that computes a feed forward control amount of the behavior control device according to a steering angle of the vehicle; a feedback computing unit (72) that computes a feedback control amount of the behavior control device according to a difference between a target vehicle state amount computed from the steering angle and an actual vehicle state amount; a correcting unit (73) that computes a corrected feed-forward control amount by correcting the feed forward control amount according to the feedback control amount; and a target control amount computing unit (74) that computes a target control amount of the behavior control device according to the feedback control amount and the corrected feed forward control amount.

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Номер записи: 83
07-01-2021 дата публикации

APPARATUS AND METHODS FOR OBSTACLE DETECTION

Номер: US20210001838A1
Автор: HUANG Jinzhu, Zhao Cong
Принадлежит:

A movable object for responding to an object includes a first passive infrared sensor having a first detection range and a first field of view, and one or more second passive infrared sensors each having a second detection range and a second field of view. The second detection range is longer than the first detection range and the second field of view is smaller than the first field of view. The movable object further includes one or more processors configured to recognize the object based on one or more heat signals received from at least one of the first passive infrared sensor or the one or more second passive infrared sensors, and perform a flight response measure to control the movable object based on the recognized object. 1. A movable object for responding to an object , comprising:a first passive infrared sensor having a first detection range and a first field of view;one or more second passive infrared sensors each having a second detection range and a second field of view, the second detection range being longer than the first detection range and the second field of view being smaller than the first field of view; and recognize the object based on one or more heat signals received from at least one of the first passive infrared sensor or the one or more second passive infrared sensors; and', 'perform a flight response measure to control the movable object based on the recognized object., 'one or more processors configured to2. The movable object of claim 1 , wherein the one or more processors are further configured to:determine a distance to the recognized object based on a calibration curve and a peak value of an output signal received from at least one of the first passive infrared sensor or the one or more second passive infrared sensors, wherein the calibration curve shows a relationship between distances and peak values.3. The movable object of claim 1 , wherein the flight response measure comprises tracking the recognized object.4. The movable object ...

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Номер записи: 84
01-01-2015 дата публикации

Driving assist controller for vehicle

Номер: US20150002284A1
Автор: Harunobu Horiguchi, Koji Matsuno
Принадлежит: Fuji Jukogyo KK

A control unit of an assist controller for a vehicle estimates the visibility of a driver, calculates a visibility degradation ratio as a temporal change amount of the visibility, compares the visibility degradation ratio with a warning threshold that has been set in advance according to a vehicle speed, determines whether to warn the driver with a warning device, compares the visibility degradation ratio with a control characteristic change threshold that has been set in advance according to a vehicle speed, determines changes in control characteristics of the ABS function, skid preventing control function, and brake assist control function, compares the visibility degradation ratio with a deceleration control actuation threshold that has been set in advance according to a vehicle speed, and determines whether to execute automatic braking.

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Номер записи: 85
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: 86
05-01-2017 дата публикации

BRAKE DEVICE

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

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

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Номер записи: 87
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: 88
02-01-2020 дата публикации

COLLISION PREVENTION APPARATUS AND METHOD, AND DRIVING SUPPORT APPARATUS

Номер: US20200001839A1
Автор: Lee Sang Yeob
Принадлежит:

The present embodiments relate to a collision prevention apparatus and method, and a driving support apparatus. The collision prevention apparatus may comprise: a collision risk determiner that determines a collision risk of a vehicle, a driving intervention determiner that determines driving intervention of a driver, and a collision prevention controller that controls a collision risk alert according to a result of determination on a collision risk of the vehicle, and adjusts a braking time point of the vehicle according to a result of determination on driving intervention of the driver. 1. A collision prevention apparatus comprising:a collision risk determiner configured to determine a collision risk of the vehicle;a driving intervention determiner configured to determine driving intervention of a driver; anda collision prevention controller configured to control a collision risk alert according to a result of determination on a collision risk of the vehicle and adjust a braking time point of the vehicle according to a result of determination on driving intervention of the driver,wherein the collision risk determiner performs comparison of at least one between speed values of forward vehicles and a predetermined reference speed value, and between acceleration values of the forward vehicles and a predetermined reference acceleration value, and determines the collision risk of the vehicle according to a comparison result, and adjusts at least one of the predetermined reference speed value and the predetermined reference acceleration value according to a vehicle driving time of the driver,wherein the collision prevention controller maintains the braking time point of the vehicle if the driver is intervened in driving, and advances the braking time point of the vehicle if the driver is not intervened in driving, andwherein, if the forward vehicles, detected by a radar sensor mounted to be oriented downwards from horizontal on the front of the vehicle, comprise a first ...

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Номер записи: 89
02-01-2020 дата публикации

SYSTEM AND METHOD FOR BRAKING A TRACTOR-TRAILER ASSEMBLY

Номер: US20200001841A1
Автор: Charles Jacob, Corrado Vincenzo, Dillon Shane P., Green Brian, Guo Haibo, Mariniello Ciro
Принадлежит: CNH INDUSTRIAL AMERICA LLC

A system and method for braking a tractor-trailer assembly is provided. The method includes generating a tractor brake pressure for application to a tractor brake for braking a tractor wheel, determining a tractor brake rate based on one or more of the generated tractor brake pressure, one or more parameters of the tractor brake, one or more parameters of the tractor wheel, one or more parameters of a final drive, and a mass of the tractor, and determining a trailer brake pressure applied to a trailer brake of a trailer wheel of a trailer, based on the determined tractor brake rate. 1. A method for braking a tractor-trailer assembly , the method comprising:depressing a brake pedal of a tractor for generating a tractor brake pressure applied to a tractor brake for braking a tractor wheel, the tractor brake coupled to the tractor wheel via a final drive;determining, by an electronic control unit (ECU), a tractor brake rate based on one or more of the generated tractor brake pressure, one or more parameters of the tractor brake, one or more parameters of the tractor wheel, one or more parameters of the final drive, and a mass of the tractor; anddetermining, by the ECU, a trailer brake pressure applied to a trailer brake of a trailer wheel of a trailer for braking the trailer wheel based on the determined tractor brake rate.2. The method according to claim 1 , wherein the tractor brake comprises one or more brake frictional plates claim 1 , one or more steel plates claim 1 , and a brake piston claim 1 , and wherein determining the tractor brake rate further comprises:determining, by the ECU, a brake torque applied to the tractor brake based on a number of the one or more brake frictional plates, radii of the one or more brake frictional plates, an area of the piston, a coefficient of friction between the one or more brake frictional plates and the one or more steel plates, and the tractor brake pressure;determining, by the ECU, a wheel torque applied to the tractor ...

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Номер записи: 90
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: 91
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: 92
04-01-2018 дата публикации

ELECTRONIC BRAKE SYSTEM FOR A COMPRESSED AIR BRAKING SYSTEM OF A UTILITY VEHICLE

Номер: US20180001879A1
Автор: WITTE Bastian
Принадлежит:

An electronic brake system for a braking system of a utility vehicle having a brake encoder with at least one sensor for detecting positions of a brake pedal that is actuated by the driver of the utility vehicle and at least one valve that is mechanically actuated via the brake pedal, and which, as a result of the mechanical actuation, is moved from a pressure reduction position into at least one pressure-maintaining or pressure increase position, in which the valve admits at least one fluid flow for the actuation of at least one operating brake of the braking system, wherein the valve is assigned at least one control element that is different from the brake pedal, by which the valve is moved. 1. An electronic brake system for a braking system of a utility vehicle , the system comprising:a braking value encoder that includes at least one sensor for detecting positions of a brake pedal that is operable by a driver of the utility vehicle and at least one valve that is mechanically actuated by the brake pedal, which as a result of the mechanical actuation is moved from a pressure reduction position to at least one pressure maintenance position or pressure build-up position, in which the valve passes at least one fluid flow for actuating at least one service brake of the braking system; andat least one final control element that is different from the brake pedal and by which the valve is moved is associated with the valve.2. The electronic brake system of claim 1 , wherein the final control element is an electrically operated final control element.3. The electronic brake system of claim 2 , wherein the final control element is an electromagnet.4. The electronic brake system of claim 1 , wherein the valve is moved by the final control element independently of the brake pedal.5. The electronic brake system of claim 1 , further comprising:a first battery for storing electrical current;a first electronic control unit connected to the first battery and supplied with ...

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Номер записи: 93
02-01-2020 дата публикации

METHOD FOR CONTROLLING A SEPARATING CLUTCH

Номер: US20200001844A1
Автор: Adams Werner, Menne Achim, Müller Philipp
Принадлежит: VOITH PATENT GMBH

A method for controlling a separating clutch in a power train of a vehicle having a drive motor and a retarder. The clutch is arranged such that a rotor of the retarder is switched into a drive connection with the motor and/or power train via the clutch and a working chamber of the retarder can be filled with an operating medium to build up a braking power such that braking torque is exerted by the retarder onto the power train and/or motor. A control system switches the clutch into a closed or an open position. The switching of the clutch into the closed position occurs depending on an input signal to the controller, and the clutch is switched back into the open position depending on essentially no medium being present in the working chamber of the retarder and that predetermined limits of an operating and/or environmental parameter are not exceeded. 1. A method for controlling a separating clutch in a power train of a motor vehicle , comprising the steps of:arranging a separating cutch between a drive motor and/or a power train and a retarder such that a rotor of the retarder can be switched into a drive connection with the drive motor and/or the power train by the separating clutch;filling of a working chamber of the retarder with an operating medium in order to build up a braking power such that a braking torque is exerted by the retarder onto the power train and/or the drive motor;switching the separating clutch into a closed position or an open position under a control of a control system, the switching of the separating clutch into the closed position occurs depending on at least one input signal to the controller, and the separating clutch is switched back into the open position depending on essentially no working medium being present in the working chamber of the retarder and that predetermined limits of at least one additional operating and/or environmental parameter are not exceeded.2. The method of claim 1 , wherein the input signal to the controller is ...

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Номер записи: 94
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: 95
02-01-2020 дата публикации

METHODS AND SYSTEMS FOR BRAKE PAD LIFE DETERMINATION

Номер: US20200001849A1
Автор: Marmara Stacey M., Medinei Nojan, NGUYEN HUNG H., SHAUB Paul S.
Принадлежит:

An exemplary method for performing a brake pad life determination includes providing a brake assembly, including a brake pad position sensor, providing a control system comprising a controller electronically connected to the brake assembly, receiving sensor position data from the brake pad position sensor, determining whether the sensor position data satisfies a first acceptance criterion, if the sensor position data satisfies the first acceptance criterion, performing statistical analysis of the sensor position data to determine a standard deviation and a mean of the sensor position data, determining whether the sensor position data satisfies a second acceptance criterion, and if the sensor position data satisfies the second acceptance criterion, determining a brake pad life estimate. 1. A method for performing a brake pad life determination , the method comprising:providing a brake assembly, including a brake pad position sensor;providing a control system comprising a controller electronically connected to the brake assembly;receiving, by the controller, sensor position data from the brake pad position sensor;determining, by the controller, whether the sensor position data satisfies a first acceptance criterion;if the sensor position data satisfies the first acceptance criterion, performing, by the controller, statistical analysis of the sensor position data to determine a standard deviation and a mean of the sensor position data;determining, by the controller, whether the sensor position data satisfies a second acceptance criterion; andif the sensor position data satisfies the second acceptance criterion, determining, by the controller, a brake pad life estimate.2. The method of claim 1 , further comprising providing a vehicle sensor configured to measure a vehicle lateral acceleration claim 1 , and wherein determining whether the sensor position data satisfies the first acceptance criterion comprises determining whether the vehicle lateral acceleration data is ...

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Номер записи: 96
04-01-2018 дата публикации

A VEHICLE ASSISTANCE SYSTEM

Номер: US20180001889A1
Автор: HÄRSLÄTT Peter
Принадлежит: VOLVO TRUCK CORPORATION

A vehicle assistance system for a vehicle is provided. A corresponding computer implemented method and computer program product are also provided. 2. The vehicle assistance system according to claim 1 , wherein the operation of the first vehicle is based on features extracted from the acquired image feed.3. The vehicle assistance system according to claim 1 , wherein the vehicle scenario including information relating to a current location of the first vehicle.4. The vehicle assistance system according to claim 1 , wherein the vehicle scenario is selected from a predetermined set of vehicle scenarios claim 1 , and at least one safety requirement is predetermined for each vehicle scenario of the set of vehicle scenarios.5. The vehicle assistance system according to claim 1 , wherein the correlation of the image feed produced by the at least one external camera and the safety requirement for the vehicle scenario is further based on a coverage area for the at least one external camera.6. The vehicle assistance system according to claim 1 , wherein the vehicle information extracted from the internal source of the first vehicle is generated by at least one controllable vehicle component comprised with the first vehicle.7. The vehicle assistance system according to claim 1 , further comprising a display screen connected to the control unit claim 1 , wherein the control unit when operating the first vehicle based on the image feed displays the image feed to a driver of the vehicle viewing the display screen.8. The vehicle assistance system according to claim 1 , wherein the vehicle information extracted from the internal network of the first vehicle comprises road map data.9. The vehicle assistance system according to claim 1 , wherein the control unit receives a location of the first vehicle claim 1 , from a GNSS receiver comprised with first vehicle.10. The vehicle assistance system according to claim 1 , wherein the vehicle information extracted from the internal source ...

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Номер записи: 97
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: 98
03-01-2019 дата публикации

DRIVING SUPPORT CONTROL APPARATUS AND DRIVING SUPPORT CONTROL METHOD

Номер: US20190001938A1
Автор: IKE Wataru, TAKAKI Ryo, TANASE Masayasu
Принадлежит:

A controller calculates absolute velocity of an object based on acquired own vehicle velocity and acquired relative velocity of the object with respect to an own vehicle. The controller determines a relative movement state of the object in a direction of movement of the own vehicle based on the calculated absolute velocity of the object. The controller changes a threshold for the absolute velocity of the object to be used for determination of the relative movement state of the object while the automatic brake is actuated. 1. A driving support control apparatus applied to a vehicle system actuating an automatic brake using a brake apparatus based on a predetermined actuation condition , and performing collision avoidance control relative to an object present in front of an own vehicle , the driving support control apparatus comprising:an own vehicle velocity acquiring unit configured to acquire an own vehicle velocity;a relative velocity acquiring unit configured to acquire relative velocity of the object with respect to the own vehicle;an object velocity calculating unit configured to calculate absolute velocity of the object based on the acquired own vehicle velocity and the acquired relative velocity;a state determining unit configured to determine a relative movement state of the object in a direction of movement of the own vehicle based on the calculated absolute velocity;a brake detecting unit configured to detect a state where the automatic brake is actuated; anda threshold changing unit configured to change a threshold for the absolute velocity to be used for determination of the relative movement state by the state determining unit while the automatic brake is actuated.2. The driving support control apparatus according to claim 1 ,wherein the state determining unit determines whether the relative movement state is at least a stationary state or an oncoming state based on the absolute velocity, andthe threshold changing unit changes the threshold in the case ...

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Номер записи: 99
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: 100