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    • 44. 发明授权
    • Hydraulic braking systems for vehicles
    • 车辆液压制动系统
    • US4382364A
    • 1983-05-10
    • US212797
    • 1980-12-04
    • Alfred W. ThomasAnthony W. Harrison
    • Alfred W. ThomasAnthony W. Harrison
    • B60T7/00B60T13/14B60T17/00
    • B60T13/148
    • In a power braking system for a vehicle a supply of fluid from a power source is utilized to augment the output pressure to be supplied to a brake from a pedal-operated brake control valve assembly. The power source comprises a source of hydraulic fluid of a type different from that which is supplied to the brake from the control valve assembly, and the fluid under pressure from the pressure source is supplied to at least one pressure converter which is adapted to pressurize hydraulic fluid in a sub-system to augment the output pressure from the control valve assembly. The sub-system is provided with hydraulic fluid of a type different from that of the power source, and an hydraulic accumulator is incorporated in a line between the pressure converter and the control valve assembly.
    • 在用于车辆的动力制动系统中,使用来自动力源的流体供应来增加从踏板操作的制动控制阀组件供应到制动器的输出压力。 电源包括与从控制阀组件提供给制动器的液压流体类型不同的液压流体源,并且来自压力源的压力下的流体被供应到至少一个压力转换器,该压力转换器适于对液压 子系统中的流体以增加来自控制阀组件的输出压力。 子系统设有与动力源类型不同的液压流体,液压蓄能器并入压力转换器与控制阀组件之间的管路中。
    • 46. 发明授权
    • Brake pedal actuator
    • 制动踏板执行器
    • US3877299A
    • 1975-04-15
    • US38238573
    • 1973-07-25
    • CLAYTON MANUFACTURING CO
    • CLAYTON SR WILLIAMCLINE EDWIN LEE
    • B60T7/16B60T7/00B60T17/22G01L5/28
    • B60T7/00B60T17/223
    • A removable brake pedal actuator for applying a force to conventional vehicle brake pedals in accordance with a control signal for brake testing purposes is described. The actuator includes a frame which rests on the vehicle floor board and is held in place by an operator''s foot. A contact pad is provided for engagement with the brake pedal. A force transferring or coupling mechanism in the form of a pneumatically operated piston cylinder assembly is connected between the frame and pedal contact pad to provide a pedal force in response to the control signal. A contact sensor is mounted on the contact pad to provide an indication that the contact pad is in actual contact with the brake pedal. A pressure sensor is also carried by the contact pad for engagement with the brake pedal to provide a signal representative of the force applied to the brake pedal. A floor clearance probe or transducer is also provided on the actuator for providing an indication that the distance between the brake pedal and vehicle floor has decreased below a minimum acceptable value. The piston can be connected to a position indicating transducer such as a potentiometer for permitting the travel of the brake pedal to be ascertained during braking tests. The actuator may be a part of a servo control loop in which feedback signals representative of a desired braking effort or brake pedal pressure are used to control the actuator.
    • 描述了用于根据用于制动测试目的的控制信号向常规车辆制动踏板施加力的可拆卸制动踏板致动器。 致动器包括搁置在车辆底板上并由操作者的脚保持在适当位置的框架。 提供接触垫以与制动踏板接合。 以气动操作的活塞气缸组件形式的力传递或联接机构连接在框架和踏板接触垫之间,以响应控制信号提供踏板力。