Automatic skid and spin control system for vehicle brakes and method
    1.
    发明授权
    Automatic skid and spin control system for vehicle brakes and method 失效
    车辆制动器自动防滑控制系统及方法

    公开(公告)号:US4088375A

    公开(公告)日:1978-05-09

    申请号:US640865

    申请日:1975-12-15

    摘要: A fluid operated system for controlling a brake applicable to a vehicle wheel having a flywheel, driven by an unpowered vehicle wheel, connected to the vehicle brake pedal and adapted to disconnect the flywheel from the unpowered wheel to rotate independent thereof when the brake pedal is operated. Upon vehicle deceleration, the flywheel slides forward in the direction of vehicle movement due to inertia and slidably presses against a brake pad which decelerates the flywheel at a rate proportional to vehicle deceleration. A fluid operated valve having a housing containing spaced fluid inlet, storage and outlet chambers which open onto a concave base of the housing is employed to sense the rotational speed of the flywheel. A collar, connected to the flywheel so as to rotate in unison therewith, slidably engages the concave base and contains a slot which alternately connects the inlet and storage chambers and thereafter, the storage and outlet chambers together to generate a fluid output signal in the outlet chamber which is a function of the rotational speed of the flywheel. A wheel speed senser is used to sense the rotational speed of a vehicle wheel to which the brake is applied. A fluid valve, connected to the flywheel speed senser and the wheel speed sensor, generates a brake controlling response in accordance with a difference between the speeds of the wheel and vehicle and is operatively connected to the brake to limit the difference. Additional features include a manual override assembly which insures normal brake operation upon failure of the fluid operated system, and a pendulum arrangement associated with the flywheel to eliminate errors in vehicle speed sensing caused by gravity when the vehicle travels on steep inclines.

    摘要翻译: 一种流体操作系统,用于控制适用于具有飞轮的制动器的制动器,所述飞轮由未动力的车轮驱动,所述飞轮连接到所述车辆制动踏板,并且适于在所述制动踏板被操作时将所述飞轮与所述未动力的轮分离以独立地旋转 。 在车辆减速时,飞轮由于惯性而沿车辆移动方向向前滑动,并可滑动地按压制动片,该制动垫以与车辆减速度成比例的速度减速飞轮。 流体操作的阀具有包含间隔开的流体入口的外壳,用于开启到壳体的凹形底座上的存储和出口室来感测飞轮的转速。 连接到飞轮以与其一起旋转的套环可滑动地接合凹形基座并且包含交替地连接入口和存储室的槽,此后将存储和出口室一起在出口处产生流体输出信号 这是飞轮旋转速度的函数。 轮速传感器用于感测施加制动器的车轮的转速。 连接到飞轮速度传感器和车轮速度传感器的流体阀根据车轮和车辆的速度之间的差异产生制动控制响应,并且可操作地连接到制动器以限制差异。 附加特征包括手动超驰组件,其在流体操作系统故障时确保正常的制动操作,以及与飞轮相关联的摆动装置,以消除当车辆在陡峭的倾斜度上行驶时由重力引起的车辆速度感测误差。

    Control device of a brake booster, applying additional force when a
pressure difference between a front and rear booster chamber exceeds a
pre-determined threshold
    9.
    发明授权
    Control device of a brake booster, applying additional force when a pressure difference between a front and rear booster chamber exceeds a pre-determined threshold 失效
    制动助力器的控制装置,当前后增压室之间的压差超过预定阈值时,施加额外的力

    公开(公告)号:US5046314A

    公开(公告)日:1991-09-10

    申请号:US430741

    申请日:1989-10-31

    申请人: Roland Levrai

    发明人: Roland Levrai

    摘要: In order to increase the efficiency of a booster (10), the rear chamber (18) of which contains an auxiliary drive member (28) having a pressure chamber (30) connected to a pressure source (34) via a control device (36), the latter comprises a normally closed valve (38), via which the source (34) can communicate with the pressure chamber (30), and a mechanism (40) actuating this valve, which controls the opening of the latter automatically when the pressure in the rear chamber (18) exceeds the pressure in the front chamber (16) of the booster by a given value. Such an assembly can be used particularly on a braking system of a motor vehicle.

    摘要翻译: 为了提高助力器(10)的效率,其后室(18)包含具有通过控制装置(36)连接到压力源(34)的压力室(30)的辅助驱动构件(28) ),后者包括常闭阀(38),源(34)可以通过该阀(38)与压力室(30)连通;以及机构(40)致动该阀,当机构(40)自动地控制该阀 后室(18)中的压力超过增压器的前室(16)中的压力给定值。 这种组件可以特别用在机动车辆的制动系统上。