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    • 91. 发明授权
    • Parking brake control apparatus
    • 驻车制动控制装置
    • US4564245A
    • 1986-01-14
    • US623794
    • 1984-06-22
    • Dario Barberis
    • Dario Barberis
    • B60T13/38B60T13/68B60T7/00B60T13/22B60T13/70B60T15/14
    • B60T13/683B60T13/38
    • Parking brake control apparatus on a vehicle equipped with electrofluidic responsive brakes is disclosed. The apparatus comprises a parking brake on the vehicle operable by a cylinder. A source of pressurized fluid provides fluid pressure to the cylinder. The cylinder responds to fluid pressure to release the parking brake and responds to apply the parking brake when fluid pressure is vented. A directional valve connected intermediate the source of fluid pressure and the cylinder controls fluid communication to the cylinder in one position and vents fluid pressure from the cylinder in a second position. Movement to the second position is controlled on one side of the valve by an electrovalve which responds to electrical signals and on the other side by a cylinder which responds to fluid pressure and can only occur when both an electrical signal is below a predetermined minimum and the fluid pressure is reduced.
    • 公开了一种配备有电流响应制动器的车辆上的驻车制动控制装置。 该装置包括可由气缸操作的车辆上的驻车制动器。 加压流体源向气缸提供流体压力。 气缸响应流体压力以释放驻车制动器,并在流体压力泄放时响应应用驻车制动器。 连接在流体压力源和气缸之间的方向阀在一个位置控制与气缸的流体连通,并在第二位置排出来自气缸的流体压力。 通过响应于电信号的电动阀,另一侧由响应于流体压力的气缸控制在阀的一侧上的运动,并且仅当电信号低于预定最小值时才会发生, 流体压力降低。
    • 93. 发明授权
    • Hydraulically actuated braking system for unitary control of driven and towed vehicles
    • 液压驱动制动系统,用于驾驶和驾驶车辆的单独控制
    • US3650570A
    • 1972-03-21
    • US3650570D
    • 1970-01-12
    • WAYLAND D KEITHLEVERNE E MANGEL
    • MEEKS WALTER MELVIN
    • B60T11/10B60T11/20B60T7/00
    • B60T11/20B60T11/108
    • A hydraulically actuated braking system to enable the interconnecting of a driven and a towed vehicle, whereby the hydraulic fluid conduit of the driven vehicle is connected in fluid communication to a cylinder-plunger assembly by a flexible conduit, which cylinder-plunger assembly may be connected in end to end relation with an auxiliary master cylinder mounted on the towed vehicle. The auxiliary master cylinder is connected in fluid communication with the hydraulic fluid conduit system which leads to the brakes of the towed vehicle, and, by closing a valve intermediate the conduit system and the normal master cylinder of the towed vehicle, and opening a valve in a conduit intermediate the auxiliary master cylinder and the hydraulic fluid conduit system of the towed vehicle, mechanical force may be applied by the plunger of the hydraulic fluid cylinder-plunger assembly to the auxiliary master cylinder. The cylinder-plunger assembly is connected in fluid communication with the hydraulic fluid brake system of the driven vehicle, and the driven vehicle and the towed vehicle may be accurately controlled simultaneously by the application of the brake pedal of the driven vehicle. Provision is made to close a valve in a conduit intermediate the auxiliary cylinder and the conduit system of the towed vehicle, and opening a valve in the conduit leading from the original master cylinder to the conduit system of the towed vehicle, to enable the towed vehicle to be used in the same manner as if the auxiliary hydraulic cylinder arrangement was not installed thereon. It is to be pointed out that the separation of the hydraulic cylinderplunger assembly from the auxiliary master cylinder may be accomplished without loss of hydraulic fluid.
    • 一种液压致动的制动系统,其能够使被驱动车辆和拖曳车辆相互连接,由此被驱动车辆的液压流体管道通过柔性管道与气缸柱塞组件流体连通地连接,该气缸柱塞组件可连接 与安装在拖车上的辅助主缸的端对端关系。 辅助主缸与通向牵引车辆的制动器的液压流体管道系统流体连通,并且通过关闭牵引车辆的管道系统和正常主缸的中间阀,并且打开阀 辅助主缸和牵引车辆的液压流体管道系统之间的导管可以通过液压缸 - 柱塞组件的柱塞将机械力施加到辅助主缸。 气缸 - 柱塞组件与从动车辆的液压流体制动系统流体连通地连接,并且可以通过施加从动车辆的制动踏板来同时精确地控制从动车辆和被牵引车辆。 规定关闭在辅助气缸和牵引车辆的导管系统之间的导管中的阀门,并且将从原始主缸中导出的导管中的阀打开到拖车的导管系统,以使牵引车辆 以与未安装辅助液压缸装置相同的方式使用。 要指出的是,液压缸 - 柱塞组件与辅助主缸的分离可以在不损失液压流体的情况下实现。