公开(公告)号：WO1993000236A1

公开(公告)日：1993-01-07

申请号：PCT/US1992004806

申请日：1992-06-09

Applicant: ALLIED-SIGNAL INC.

Inventor： ALLIED-SIGNAL INC. ,  EDDY, William, Crawford ,  CASEY, Gary, Lee ,  THESIER, Patrick, Allen ,  PATIENT, Daniel, Joseph ,  TOWERS, Kenneth, Scott

IPC: B60T07/00

CPC classification number: B60T8/326 ,  B60T8/341 ,  B60T8/344 ,  B60T8/4072 ,  B60T8/4827 ,  B60T13/58 ,  B60T13/745

Abstract: A braking system for front and rear service brakes of a vehicle comprising: first electrohydraulic actuator (20) for pressurizing the front service brakes in response to an electric control signal representative of operator applied braking effort during normal front service braking operation and a master cylinder (38) having first and second chambers (38a, 38b) for pressurizing hydraulic cylinders (12a, 12b) associated with the front service brakes in response to operator applied braking effort. The master cylinder (38) provides brake activation in the event the first electrohydraulic means (20) does not operate. The system additionally includes a plurality of isolation valves (42a, 42b), located upstream of each front brake cylinder (12a, 12b) for selectively communicating fluid pressurized by the master cylinder (38) or fluid pressurized by the first electrohydraulic means (20) to a particular one of such cylinders. A hydraulic actuator (50) is provided for pressurizing the rear service brakes. A control system is included in an ECU (30) for generating control signals to activate various system components.

Abstract translation: 一种用于前车辆和后车辆制动器的制动系统，包括：第一电动液压致动器（20），用于响应于在正常前部制动操作期间代表操作者施加的制动力的电控制信号和主缸（ 38）具有用于响应于操作者施加的制动力而对与前制动器相关联的液压缸（12a，12b）进行加压的第一和第二腔室（38a，38b）。 在第一电动液压装置（20）不工作的情况下，主缸（38）提供制动器启动。 该系统还包括位于每个前制动缸（12a，12b）上游的多个隔离阀（42a，42b），用于选择性地连通由主缸（38）加压的流体或由第一电动液压装置（20）加压的流体， 到这种气缸中的特定的一个。 提供液压致动器（50）以对后行驶制动器加压。 控制系统包括在用于产生控制信号以激活各种系统部件的ECU（30）中。

公开(公告)号：WO1993009012A1

公开(公告)日：1993-05-13

申请号：PCT/US1992008922

申请日：1992-10-19

Applicant: ALLIED-SIGNAL, INC.

Inventor： ALLIED-SIGNAL, INC. ,  PHIPPS, Jack, Ralph ,  PATIENT, Daniel, Joseph

IPC: B60T13/74

CPC classification number: B60T13/58 ,  B60T13/66 ,  B60T13/745

Abstract: An electro-hydraulic brake system (30) comprising: a master cylinder (32); a pump (34) the output being communicated to a pressure regulating valve (50), a motor (36) for rotating the pump; an isolation valve (42) for selectively connecting one of the master cylinder and pump to a brake cylinder(s) (44) and a signal generator (40) to activate the pump. The pressure regulating valve connected between the master cylinder and pump to regulate pump output pressure at a determinable level in proportion to the pressure generated by the master cylinder and for providing a path to drain the brake cylinder(s) to a reservoir during intervals of decreasing master cylinder pressure. The system may also include an excess flow valve(s) (90) to prevent the reservoir from being drained by the pump in the event of a malfunction in the system. Various embodiments of the regulating valve are described which add additional failure mode protection.

Abstract translation: 一种电动液压制动系统（30），包括：主缸（32）; 输出与压力调节阀（50）连通的泵（34）;用于使泵旋转的马达（36）; 隔离阀（42），用于选择性地将主缸和泵中的一个连接到制动缸（44）和信号发生器（40）以启动泵。 压力调节阀连接在主缸和泵之间，以将泵的输出压力与主缸产生的压力成比例地调节在一个可确定的水平位置，并提供一个通道，以便在减速时间间隔内将制动缸排放到油箱 主缸压力。 系统还可以包括过量流量阀（90），以防止在系统故障的情况下储存器被泵排出。 描述了调节阀的各种实施例，其增加额外的故障模式保护。

公开(公告)号：WO1992021540A1

公开(公告)日：1992-12-10

申请号：PCT/US1992003690

申请日：1992-05-05

Applicant: ALLIED-SIGNAL INC.

Inventor： ALLIED-SIGNAL INC. ,  CASEY, Gary, Lee ,  PATIENT, Daniel, Joseph

IPC: B60T13/20

CPC classification number: B60T13/745 ,  B60T13/20 ,  G05D16/208 ,  Y10S303/02 ,  Y10S303/03

Abstract: A system and method of controlling pressure in a wheel brake cylinder (56) of a brake. The hydraulic cylinder is connected to an electrically driven pump (12) and a flow control valve (50, 50', 100) is connected between the pump and the wheel cylinder. The system and method operate to control the speed of a motor driven pump to generate a desired pressure in a cylinder of the brake; generate a differential pressure, in the flow control valve, proportional to pump flow and communication same to a spring biased valving element; cause the valving element to move, in response to pressure forces acting on the valving element, generated by the pressure differential, and the force of the bias spring, so as to selectively open and close an associated exhaust port, connected to a drain or sump, such that in the steady state an equilibrium condition is achieved where the pressure forces balance the spring force and the pressure in the hydraulic cylinder is constant.