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公开(公告)号：US11066057B2
公开(公告)日：2021-07-20
申请号：US15717875
申请日：2017-09-27
摘要： A method for operating a hydraulic brake system of a motor vehicle having a brake booster and a hydraulic brake boost wherein a brake pressure is detected and an underpressure, prevailing in an underpressure chamber of the brake booster is estimated on the basis of the detected brake pressure. The hydraulic brake boost controlled based on the estimated underpressure, with the estimated underpressure taking into account an actuation of the hydraulic brake boost.
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公开(公告)号：US10829100B2
公开(公告)日：2020-11-10
申请号：US15764333
申请日：2016-11-14
申请人： WABCO GmbH
发明人： Mirko Bruett , Michael Haverkamp
摘要： A power-operated hydraulic brake system for a wheeled vehicle includes a main brake line; a brake valve configured to input a target brake pressure into the main brake line, the brake vale configured to be actuated via a brake pedal; a plurality of wheel brake lines branching off from the brake valve, each of which leads to an actuating unit of a wheel brake; and a valve assembly of an ABS control system. The valve assembly includes an inlet valve arranged between the main brake line and one of the wheel brake lines, and an outlet valve arranged between the relevant wheel brake line and an unpressurized return line. The inlet valve and the outlet valve are pressure-controlled 2/2-way switching valves with correspondingly large switching cross sections, and the inlet valve and the outlet valve are each assigned at least one pilot valve designed as a solenoid switching valve.
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公开(公告)号：US10647311B2
公开(公告)日：2020-05-12
申请号：US15808522
申请日：2017-11-09
申请人： Robert Bosch GmbH
发明人： Chi Chuang , Rosalin Irwan , Qingyuan Li
IPC分类号： G06F7/70 , B60T17/22 , B60T8/172 , B60T13/66 , B60L7/18 , B60L7/26 , B60L15/20 , B60L3/00 , B60L58/10 , B60T13/52 , B60T1/10 , B60T8/88 , B60T17/18 , B60T8/44 , B60T13/72 , B60T7/12 , B60T8/17 , B60T8/26
摘要： Systems and methods for a braking a vehicle. In one example, the braking system includes a friction braking system, a regenerative braking system, and an electronic processor. The electronic processor is communicatively coupled to the friction braking system and the regenerative braking system. The electronic processor is configured to receive a driver brake request and determine a brake failure state. The brake failure state indicates a brake failure. In response to determining the brake failure state, the electronic processor applies a braking force based on the driver brake request. The braking force includes a frictional braking force generated by the friction braking system and a regenerative braking force generated by the regenerative braking system.
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公开(公告)号：US10457260B2
公开(公告)日：2019-10-29
申请号：US15760040
申请日：2016-09-29
申请人： Advics Co., Ltd.
发明人： Kazuaki Yoshida
摘要： Provided is a vehicle brake control device which is capable of suitably executing brake assistance processing, even if a sensor for detecting the pressure inside a variable-pressure chamber of a vacuum booster is not provided. A brake device is provided with: a vacuum booster for assisting an operation force inputted to a brake pedal; a master cylinder which generates MC pressure Pmc corresponding to the assisted operation force; wheel cylinders which are provided to wheels, and in which WC pressure is increased as the MC pressure Pmc is increased; and a brake actuator capable of adjusting the WC pressure. When it is determined that emergency braking is requested, a control device of the brake device sets, as the assistance limit pressure, the MC pressure Pmc at that point in time, and operates the brake actuator, to execute brake assistance processing for assisting WC pressure increase.
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公开(公告)号：US20190315326A1
公开(公告)日：2019-10-17
申请号：US16471386
申请日：2017-10-19
申请人： Robert Bosch GmbH
发明人： Florian Haag , Herbert Vollert , Jens Kolarsky
摘要： A method for boosting a braking force in an electronically slip-controllable vehicle brake system, as well as an electronically slip-controllable vehicle brake system. Vehicle brake systems of this kind are at least equipped with a power brake unit and electronic slip-controllable vehicle brake system. In the case of a malfunction of the power brake unit, the traction-slip control device (92) takes over the boosting. A method for determining a composite signal which is adjusted by controlling a drive of a pressure generator of the slip-controllable vehicle brake system accordingly. To this end, an electronic control unit records two mutually independent input quantities, converts these input quantities into evaluation signals and sums the evaluation signals mathematically to yield a composite signal. The latter represents a setpoint brake pressure that the slip-controllable vehicle brake system supplies by controlling a pressure generator accordingly.
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公开(公告)号：US20190275995A1
公开(公告)日：2019-09-12
申请号：US16237209
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include the plunger assembly engage at least one seal that defines a portion of a pressurized chamber. An end cap covers the projecting end of the cylinder and is secured to the housing to define a fluid passageway between the end of the cylinder and at least one fluid passageway provided in the housing block.
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7.发明授权公开(公告)号：US10399546B2
公开(公告)日：2019-09-03
申请号：US15187501
申请日：2016-06-20
申请人： Robert Bosch GmbH
发明人： Dirk Drotleff
摘要： An electronically slip-controllable power-assisted braking system for a motor vehicle. The power-assisted braking system is equipped with a hydraulically acting booster device that is inserted in a brake circuit downstream from an actuation device and has a piston unit movably guided in a cylinder housing. The piston unit is embodied in stepped fashion and divides an interior space of the cylinder housing into multiple booster chambers impinged upon by pressure medium. At least one of these booster chambers is capable of being impinged upon by pump pressure from a pump driven by external force.
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公开(公告)号：US20190084539A1
公开(公告)日：2019-03-21
申请号：US16133806
申请日：2018-09-18
发明人： Jun SHINOZAKI , Koichi KOKUBO , Masayuki NAITO , Yuji YOSHII , Masahiro HARA
摘要： According to one embodiment, for example, when it is determined that a certain condition has been satisfied while first antilock control is being executed, a controller of a brake control apparatus executes second antilock control by opening and closing a solenoid valve with a motor stopped so that brake fluid of the wheel cylinder is caused to flow into a reservoir, the second antilock control including a second pressure reduction mode, the second pressure reduction mode reducing a pressure of a wheel cylinder while substantially equilibrating the pressure of the wheel cylinder and a pressure of the reservoir at a certain pressure or larger, the certain pressure being larger than zero.
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公开(公告)号：US20180170328A1
公开(公告)日：2018-06-21
申请号：US15577544
申请日：2016-05-13
发明人： Rikiya YOSHIZU , Shinji SHIMIZU
CPC分类号： B60T8/171 , B60T8/3255 , B60T8/44 , B60T11/16 , B60T13/74 , B60T13/745 , G01B7/00 , G01D5/145 , G01R33/07
摘要： Provided is an electric booster which can be downsized by enhancing space efficiency while reducing the effect of a magnetic field from outside on a magnetic sensor by means of a magnetic shield. The stroke amount of an input plunger 29 connected to a brake pedal 6 is detected by a stroke detection sensor. The operation of an electric motor is controlled by controller on the basis of the stroke amount of the input plunger to thrust a primary piston through a ball screw mechanism, and brake fluid pressure is thus generated by a master cylinder 4. The stroke detection device uses a Hall IC to detect magnetic flux densities from first and second magnet members mounted on the input plunger to obtain the stroke of the input plunger. The first and second magnet members and the Hall IC are disposed inside a linear-motion member formed of a cylindrical magnetic body of the ball screw mechanism to be magnetically shielded.
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公开(公告)号：US09914440B2
公开(公告)日：2018-03-13
申请号：US15106537
申请日：2014-10-27
申请人： Robert Bosch GmbH
发明人： Urs Bauer , Karl-Heinz Willmann , Werner Quirant
CPC分类号： B60T8/442 , B60T8/4081
摘要： A hydraulic braking system and a method for operating the hydraulic braking system. The hydraulic braking system has a first pressure generating unit and a second pressure generating unit. The first pressure generating unit is hydraulically interruptibly and uncircumventably connected to the second pressure generating unit via a first interrupting element in such a way that with the first interrupting means in a closed position, a hydraulic connection between the first and second pressure generating unit is no longer possible.
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