公开(公告)号：US20150367824A1

公开(公告)日：2015-12-24

申请号：US14649390

申请日：2013-10-14

Applicant: ROBERT BOSCH GMBH

Inventor： Christoph Betz ,  Christian Koehler ,  Michael Reichert ,  Michael Bunk ,  Olaf Grotheer

IPC: B60T8/50 ,  B60T8/1766 ,  B60T8/40

CPC classification number: B60T8/50 ,  B60T8/1766 ,  B60T8/4072 ,  B60T8/4081 ,  B60T8/4095 ,  B60T2270/604

Abstract: A method for operating a braking system of a vehicle includes: establishing a first setpoint brake pressure to be set in a first wheel brake cylinder of a first brake circuit and a second setpoint brake pressure to be set in a second wheel brake cylinder of a second brake circuit; reducing first and second actual brake pressures by setting a master brake cylinder pressure to be no greater than a minimum of the first and second setpoint brake pressures, and controlling a first switchover valve of the first brake circuit and/or of the second brake circuit; and/or increasing the first and second actual brake pressures by setting the master brake cylinder pressure to be no smaller than a maximum of the first and second setpoint brake pressures, and activating a first wheel inlet valve of the first brake circuit and/or of the second brake circuit.

Abstract translation: 一种用于操作车辆的制动系统的方法包括：建立要设置在第一制动回路的第一车轮制动缸中的第一设定值制动压力和要设置在第二制动器缸的第二车轮制动缸中的第二设定值制动压力 制动电路; 通过将主制动缸压力设定为不大于第一和第二设定值制动压力的最小值来减小第一和第二实际制动压力，并且控制第一制动回路和/或第二制动回路的第一切换阀; 和/或通过将主制动缸压力设定为不小于第一和第二设定值制动压力的最大值来增加第一和第二实际制动压力，并且启动第一制动回路的第一进气门和/或 第二个制动电路。

公开(公告)号：US09067575B2

公开(公告)日：2015-06-30

申请号：US13058206

申请日：2008-08-29

Applicant: Christian Wargh ,  Mats Akerblom ,  Daniel Jansson

Inventor： Christian Wargh ,  Mats Akerblom ,  Daniel Jansson

IPC: F16D31/02 ,  B60T10/04 ,  F15B21/04 ,  B60K6/12 ,  B60T8/40 ,  B60W30/18 ,  F04B1/32 ,  F04B23/06

CPC classification number: B60T10/04 ,  B60K6/12 ,  B60T8/4095 ,  B60W30/18127 ,  B60Y2200/14 ,  F04B1/324 ,  F04B23/06 ,  F15B21/042 ,  Y02T10/6208 ,  Y02T10/6282

Abstract: A vehicle and a brake system for a vehicle include at least one hydraulic pump, wherein the at least one hydraulic pump is connected to an input fluid conduit and an output fluid conduit. A flow resistance unit is provided in the output fluid conduit of the at least one hydraulic pump for being selectively coupled into the output fluid conduit when brake torque is requested.

Abstract translation: 用于车辆的车辆和制动系统包括至少一个液压泵，其中所述至少一个液压泵连接到输入流体管道和输出流体管道。 在所述至少一个液压泵的输出流体管道中设置有流阻单元，用于在要求制动转矩时选择性地联接到输出流体管道中。

公开(公告)号：US4012081A

公开(公告)日：1977-03-15

申请号：US624984

申请日：1975-10-22

Applicant: Richard A. Doversberger

Inventor： Richard A. Doversberger

IPC: B60T8/40 ,  B60T8/04

CPC classification number: B60T8/4095 ,  Y10S303/90

Abstract: An anti-skid hydraulic braking system for a vehicle having the usual wheel cylinders, master cylinder and brake pedal, with a brake release valve interposed ahead of each wheel cylinder for selectively reducing the pressure in the wheel cylinder in accordance with a slip signal generated at the associated wheel upon going into a relatively slipping condition of incipient skid. Each brake release valve has an inlet port connected to the master cylinder, an outlet port connected to the wheel cylinder, and a control port. In the preferred embodiment the valve has a first or "signal" piston movable in response to slip signal pressure applied to the control port and a second piston for creating a cavity for temporary accommodation of brake fluid from the wheel cylinder. When the pressure at the control port rises, signaling an incipient skid, movement of the signal piston first cuts off the inlet port to isolate the wheel cylinder from the rest of the regular braking system and then shifts the second piston to create a cavity for accommodating slight reverse flow of fluid from the wheel cylinder, thus relieving the brake pressure sufficiently to avoid a skid. The inlet-outlet ports are bridged by a check valve to insure immediate release of the wheel cylinder upon release of the brake pedal. In an alternate form of the invention utilizing an electrical slip signal, the signal piston is replaced by a solenoid plunger.

Abstract translation: 一种用于车辆的防滑液压制动系统，其具有通常的轮缸，主缸和制动踏板，其中制动器释放阀位于每个轮缸前方，用于根据在轮缸中产生的滑动信号选择性地减小轮缸中的压力 相关的轮子进入相对滑动的初始滑行状态。 每个制动器释放阀具有连接到主缸的入口端口，连接到轮缸的出口端口和控制端口。 在优选实施例中，阀具有响应于施加到控制端口的滑移信号压力而可移动的第一或“信号”活塞，以及用于产生用于临时容纳来自轮缸的制动流体的空腔的第二活塞。 当控制口处的压力升高时，发出一个初期的滑行，信号活塞的移动首先切断进气口，将轮缸与其余的常规制动系统隔离，然后移动第二个活塞，以形成容纳 来自轮缸的流体略微反向流动，从而充分地减轻制动压力以避免滑动。 入口 - 出口通过止回阀桥接，以确保在释放制动踏板时立即释放轮缸。 在使用电滑移信号的本发明的替代形式中，信号活塞由螺线管柱塞代替。

公开(公告)号：US3994534A

公开(公告)日：1976-11-30

申请号：US550995

申请日：1975-02-19

Applicant: Alexander John Wilson

Inventor： Alexander John Wilson

IPC: B60T13/16 ,  B60T8/40 ,  B60T8/087

CPC classification number: B60T8/4095

Abstract: In an hydraulically-operated braking system for vehicles a supply of hydraulic fluid under pressure from a pump is utilized for applying a wheel brake, and the pump is responsive to rotation of the braked wheel so that the brake applying force is dependent upon the speed of rotation of the wheel and the wheel is automatically prevented from locking, and the system incorporates an hydraulic accumulator adapted to define a reservoir of high pressure for providing an instantaneous supply of high pressure fluid to apply the brake.This invention relates to improvements in hydraulically-operated braking systems for vehicles of the kind in which at least one brake is adapted to be applied in response to a supply of hydraulic fluid under pressure from a pump, and the pump is responsive to rotation of a wheel so that a brake applying force is dependent upon the speed of rotation of the wheel and the wheel is automatically prevented from locking.In known braking systems of the kind set forth a time delay may occur whilst the pump is generating within the system sufficient pressure to apply the brakes. Such a delay may be considerable in systems for operating large brakes where it is inconvenient to utilise a large pump adapted to operate at a high delivery rate when the speed of the vehicle is high.According to our invention an hydraulically operated braking system of the kind set forth incorporates an hydaulic accumulator adapted to define a reservoir of high pressure for providing an instantaneous supply of high pressure fluid to apply the brake.The hydraulic accumulator is connected to the brakes through a brake control valve of which the operation is controlled by the pressure from the pump thereby ensuring that operation of the brake is dependent upon the speed of rotation of the wheel.Preferably, by-pass means are provided for by-passing the brake control valve so that the pressure from the pump can be applied directly to the brake in the event of exhaustion of pressure in, or failure of, the hydraulic accumulator.The accumulator is charged between brake applications by the pressure from the pump which is supplied to the accumulator through a pressure regulating valve so constructed and arranged that when the brake is applied communication between the pump and the accumulator is cut-off, and the pump pressure is solely applied to the brake control valve.

Abstract translation: 在用于车辆的液压操作制动系统中，来自泵的压力下的液压流体供应用于施加车轮制动器，并且泵响应于制动轮的旋转，使得制动器施加力取决于 轮子和车轮的旋转被自动地防止锁定，并且系统包括液压蓄能器，其适于限定高压储存器，用于提供施加制动器的高压流体的瞬时供应。

公开(公告)号：US3787094A

公开(公告)日：1974-01-22

申请号：US3787094D

申请日：1971-09-30

Applicant: GEN MOTORS CORP

Inventor： HARNED J ,  JOHNSTON L

IPC: B60T8/40 ,  B60T8/50 ,  B60T13/16

CPC classification number: B60T8/4095 ,  B60T8/50

Abstract: A brake control system includes a pressure operated wheel brake, a master cylinder, a positive displacement pump drivingly connected to the wheel, a brake actuator providing a brake pressure to the wheel brake in proportion to the pump generated pressure, an orifice exhausting the pump generated pressure at a rate which prevents the pump generated pressure from operating the actuator throughout the range of vehicle speeds, and a slip control valve in series connection with the orifice and providing a variable restriction to exhaustion of the pump generated pressure in proportion to the difference between the master cylinder and wheel brake pressures. The flow area presented by the variable restriction of the slip control valve decreases at a decreasing rate as the differential between master and wheel brake pressures increases.

Abstract translation: 制动控制系统包括压力驱动的车轮制动器，主缸，驱动地连接到车轮的容积式泵，与泵产生的压力成比例地向车轮制动器提供制动压力的制动致动器;排出所产生的泵的孔 压力以防止泵产生的压力在车辆速度范围内操作致动器的速率，以及与孔口串联连接的滑动控制阀，并且提供与泵的产生压力成比例的可变限制， 主缸和车轮制动压力。 随着主制动压力和车轮制动压力之间的差值的增加，滑差控制阀的可变限制所呈现的流动面积以减小的速度减小。

公开(公告)号：US3597010A

公开(公告)日：1971-08-03

申请号：US3597010D

申请日：1969-11-21

Applicant: TRW INC

Inventor： BERMAN GEORGE A ,  CHOINSKI GRAYDON J

IPC: B60T8/34 ,  B60T8/40 ,  B60T8/06 ,  B60T13/16

CPC classification number: B60T8/4095 ,  Y10T137/2587

Abstract: A pressure-compensating valve for use with a hydraulic skid control brake system wherein a cylindrical bar stock piece is machined to provide a center flow pintle cooperable with an annular scanning annulus, thereby to provide a stepped and partially infinitely variable valve which permits partial or full diameter area sections to freely be sensed in a balanced state relieving any tendency for the pressure-compensating valve to bind or otherwise develop hydraulic imbalance.

公开(公告)号：US06394560B1

公开(公告)日：2002-05-28

申请号：US09765470

申请日：2001-01-22

Applicant: Nikolai N. Pervyshin

Inventor： Nikolai N. Pervyshin

IPC: F04B126

CPC classification number: F04B1/20 ,  B60T8/4095

Abstract: A hydraulic brake system for preventing wheel lock. The hydraulic brake system includes a variable displacement rotary pump that is activated by the rotation of an axle of a vehicle. A hydraulic control cylinder of the variable displacement rotary pump is operationally coupled to a master cylinder and a displacement piston of the hydraulic control cylinder is operationally coupled to a swash plate of the variable displacement rotary pump for manipulating an amount of brake fluid flowing from the variable displacement rotary pump to a wheel brake cylinder. An outlet port of the variable displacement rotary pump is operationally coupled to the wheel brake cylinder by a section of brake line and to a fluid reservoir through a throttle valve. An inlet port of the variable displacement rotary pump is operationally coupled to a reservoir outlet port by a section of brake line. The wheel brake cylinder is coupled to the wheel of the vehicle to slow down the vehicle when the wheel brake cylinder is activated. When the wheel is rotating, the variable displacement rotary pump is activated and when the swash plate is properly positioned, the variable displacement rotary pump creates brake fluid pressure thereby activating the wheel brake cylinder to slow down the vehicle. Moreover, if the wheel ceases to rotate, the variable displacement rotary pump ceases to apply pressure to the wheel brake cylinder thereby allowing the wheel to rotate once again.

Abstract translation: 一种用于防止车轮锁定的液压制动系统。 液压制动系统包括通过车辆的轴的旋转而被启动的可变排量的旋转泵。 可变排量旋转泵的液压控制缸可操作地联接到主缸，并且液压控制缸的移动活塞可操作地联接到可变排量旋转泵的斜盘，用于操纵从变量流动的量的制动流体 位移旋转泵到车轮制动缸。 可变排量旋转泵的出口通过一段制动管线和通过节流阀的流体储存器可操作地联接到车轮制动缸。 可变排量旋转泵的入口端口通过一段制动管线可操作地联接到储存器出口。 当车轮制动缸启动时，车轮制动缸联接到车辆的车轮以减慢车辆。 当车轮旋转时，可变排量旋转泵被启动，并且当斜盘正确定位时，可变排量旋转泵产生制动液压力，从而启动车轮制动缸以减慢车辆。 此外，如果车轮停止旋转，则可变排量旋转泵停止对车轮制动缸施加压力，从而允许车轮再次旋转。

公开(公告)号：US6102490A

公开(公告)日：2000-08-15

申请号：US971575

申请日：1997-11-17

Applicant: Chang-Bok Ko

Inventor： Chang-Bok Ko

IPC: B60T8/58 ,  B60T1/10 ,  B60T8/00 ,  B60T8/1761 ,  B60T8/40 ,  B60T8/48 ,  F04B49/06 ,  F16D61/00 ,  B60T13/16

CPC classification number: B60T8/4809 ,  B60T1/10 ,  B60T8/40 ,  B60T8/4095 ,  F04B49/065 ,  F04B2201/0805 ,  F04B2201/12041

Abstract: Disclosed is a braking system of an automobile, which can produce and store an electric power by means of the energy generated when the automobile is braked, thereby increasing efficiency in energy use, and simultaneously which can perform an anti-lock braking function and a traction control function. In the braking system, a master cylinder generates a hydraulic pressure when the brake pedal is pressed. A variably exhausting pump unit performs a pumping operation by the hydraulic pressure from the master cylinder. A control section senses a traveling state of the automobile and controls so that a proper braking force is applied to a wheel of the automobile. A flow control valve providing the variably exhausting pump unit with the braking force. A generating section generates electricity by means of a bypassed hydraulic pressure according to the order of the control section.

Abstract translation: 公开了一种汽车的制动系统，其能够通过在汽车制动时产生的能量来生产和存储电力，从而提高能量使用的效率，同时可以执行防抱死制动功能和牵引力 控制功能。 在制动系统中，主缸在制动踏板被按压时产生液压。 可变排气的泵单元通过来自主缸的液压进行泵送操作。 控制部感测汽车的行驶状态并进行控制，使得适当的制动力施加到汽车的车轮。 一个流量控制阀，为可变排气泵单元提供制动力。 发电部根据控制部的顺序通过旁路液压发电。

公开(公告)号：US6024420A

公开(公告)日：2000-02-15

申请号：US773765

申请日：1996-12-24

Applicant: Shuichi Yonemura ,  Yoichi Abe ,  Mamoru Sawada

Inventor： Shuichi Yonemura ,  Yoichi Abe ,  Mamoru Sawada

IPC: B60T7/12 ,  B60T8/24 ,  B60T8/26 ,  B60T8/32 ,  B60T8/34 ,  B60T8/40 ,  B60T8/42 ,  B60T8/44 ,  B60T8/48 ,  B60T13/16 ,  B60T13/68 ,  B60T17/02

CPC classification number: B60T8/442 ,  B60T13/161 ,  B60T13/686 ,  B60T17/02 ,  B60T7/12 ,  B60T7/122 ,  B60T8/26 ,  B60T8/3275 ,  B60T8/348 ,  B60T8/4018 ,  B60T8/4031 ,  B60T8/4045 ,  B60T8/4095 ,  B60T8/4275 ,  B60T8/441 ,  B60T8/4872 ,  B60T2201/03 ,  B60T2270/602

Abstract: A brake control apparatus for a vehicle employs a pressure-amplifying device which reduces a quantity of brake fluid generating a first brake-fluid pressure in a first conduit connected to a master cylinder, and increases second brake-fluid pressure in a second conduit, applied to a wheel cylinder simultaneously with the reduction in brake-fluid quantity in the first conduit. As a result, increase in the first brake-fluid pressure is suppressed even when a driver depress a brake pedal and load to generate the first brake-fluid pressure is alleviated. Additionally, the pressure-amplifying device applies the increased second brake-fluid pressure to the wheel cylinder. Therefore, it is possible to ensure sufficient braking force.

Abstract translation: 用于车辆的制动控制装置采用压力放大装置，该压力放大装置减少在连接到主缸的第一管道中产生第一制动液压力的制动液量，并且增加第二管道中的第二制动液压力 同时伴随着第一导管中的制动液量的减少。 结果，即使当驾驶员踩下制动踏板和负载以产生第一制动液压力时，也可以抑制第一制动液压力的上升。 此外，压力放大装置将增加的第二制动液压力施加到轮缸。 因此，可以确保足够的制动力。

公开(公告)号：US4718733A

公开(公告)日：1988-01-12

申请号：US790002

申请日：1985-10-22

Applicant: Haruyasu Fujita ,  Yasunori Ookuma ,  Kenji Honma

Inventor： Haruyasu Fujita ,  Yasunori Ookuma ,  Kenji Honma

IPC: B60T8/40 ,  B60T13/16

CPC classification number: B60T8/4095 ,  B60T8/4063

Abstract: According to progress of a vehicle, a pump is actuated to feed fluid into a brake pipe. The discharge of the pump is generally proportioned to vehicle speed. On the other hand, the fluid within the brake pipe is relieved to an upper stream side of the pump at a predetermined flow rate regulated by an orifice. Accordingly, when the flow rate of the fluid fed by the pump is less than the predetermined flow rate, in other words, when the vehicle speed is less than the predetermined speed, pressure within the brake pipe is not increased. However, when the discharge of the pump exceeds the predetermined flow rate, the pressure within the brake pipe is increased. Due to this increased pressure, a vehicle wheel braking device is actuated to brake the wheels. Thus, vehicle speed is lowered. Since the pump discharges fluid in one direction or the other direction according to forward and backward movement of the vehicle, the pump can be functioned as a reverse speed restricting device when the vehicle moves backwardly and as a vehicle speed sensor for vehicle speed responsive control devices when the vehicle moves forwardly.

Abstract translation: 根据车辆的进展，启动泵以将流体供给到制动管中。 泵的排放通常与车辆速度成比例。 另一方面，制动管内的流体以由孔口调节的预定流速释放到泵的上游侧。 因此，当由泵供给的流体的流量小于规定流量时，换句话说，当车速小于预定速度时，制动管内的压力不增加。 然而，当泵的排出超过预定流量时，制动管内的压力增加。 由于这种增加的压力，车轮制动装置被致动以制动车轮。 因此，车速降低。 由于泵根据车辆的向前和向后的运动沿一个方向或另一个方向排出流体，所以当车辆向后移动时，泵可用作倒档限制装置，并且作为车速响应控制装置的车速传感器 当车辆向前移动时。