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    • 2. 发明授权
    • Single channel best effort anti-lock brake system
    • 单通道尽力而为防抱死制动系统
    • US5484193A
    • 1996-01-16
    • US327502
    • 1994-10-21
    • Edward N. FullerHerbert L. Linkner, Jr.
    • Edward N. FullerHerbert L. Linkner, Jr.
    • B60T8/40B60T8/44B60T8/32
    • B60T8/4004B60T8/447
    • An anti-lock brake system having an electronic control responsive to wheel speed sensors associated with each wheel of the vehicle. The electronic control generates a pedal inhibit signal activating a hydraulic cylinder to inhibit further depression of the brake foot pedal in response to detecting at least one of the wheels approaching a locked state. The electronic control will also generate brake pressure control signals activating an anti-lock brake actuator connected between the brake foot pedal and the input to the vacuum power booster of the brake system. The anti-lock brake actuator, in response to the brake pressure control signals, will maintain a maximum friction between the wheels of the vehicle and the road surface.
    • 一种防抱死制动系统,其具有响应于与车辆的每个车轮相关联的车轮速度传感器的电子控制。 响应于检测到至少一个接近锁定状态的车轮,电子控制器产生启动液压缸的踏板禁止信号以阻止制动踏板的进一步按压。 电子控制器还将产生制动压力控制信号,该信号启动连接在制动踏板和制动系统的真空助力器的输入端之间的防抱死制动致动器。 防抱死制动器致动器响应于制动压力控制信号,将保持车辆的车轮与路面之间的最大摩擦。
    • 4. 发明授权
    • Vehicle anti-lock brake system
    • 车辆防抱死制动系统
    • US4865399A
    • 1989-09-12
    • US283689
    • 1988-12-13
    • Thomas M. AtkinsBrian C. TuckEdward N. FullerPeter Every
    • Thomas M. AtkinsBrian C. TuckEdward N. FullerPeter Every
    • B60T8/48B60T8/1761B60T8/1763B60T8/32B60T8/34B60T8/36B60T8/40B60T8/42B60T8/50B60T8/94B60T11/34
    • B60T8/17636B60T11/34B60T8/17616B60T8/32B60T8/341B60T8/344B60T8/347B60T8/36B60T8/363B60T8/3635B60T8/3675B60T8/4054B60T8/42B60T8/4291B60T8/50B60T8/5025B60T8/94Y10S303/08Y10S303/11
    • A vehicle braking system such as an anti-lock brake system and/or a traction control utilizes a separate solenoid-actuated, two position, three-way valve in each controlled channel of the brake system for controlling the application of pressure to the respective wheel brake circuit. The valve includes a first port connected to the controlled wheel brake(s), a second port connected to an outlet of a hydraulic pump, and a third port connected to the inlet of the hydraulic pump. The valve is only moveable between a first position wherein the outlet of the pump is connected to the wheel brake to increase pressure to the wheel brake, and a second position wherein the wheel brake is connected to the inlet of the pump to decrease pressure to the wheel brake. An electronic control is provided for operating the valve to control the application of pressure to the selected wheel brakes. The control cyclically moves the valve between the first and second positions during a predetermined time period to alternately increase and decrease pressure to the wheel brake. More specifically, the control generates a pulse-width-modulated signal to modulate the time periods during which the valve is maintained in either the first or second positions to control the effective pressure to the wheel brake to obtain a net increase, decrease, or constant pressure to the wheel brake during the predetermined time period.
    • 诸如防抱死制动系统和/或牵引力控制的车辆制动系统在制动系统的每个受控通道中使用单独的电磁致动的两位三通阀,用于控制对相应车轮施加压力 制动电路。 阀包括连接到受控制动器的第一端口,连接到液压泵的出口的第二端口和连接到液压泵的入口的第三端口。 阀只能在第一位置和第二位置之间移动,在第一位置,泵的出口连接到车轮制动器,以增加对车轮制动器的压力;第二位置,其中车轮制动器连接到泵的入口以减小压力 车轮制动。 提供电子控制器用于操作阀门以控制对所选择的车轮制动器施加压力。 该控制在预定时间段内周期性地在第一和第二位置之间移动阀,以交替地增加和减少车轮制动器的压力。 更具体地,控制产生脉宽调制信号以调节阀在第一或第二位置中保持的时间段,以控制车轮制动器的有效压力以获得净增加,减小或恒定 在预定时间段期间对车轮制动器的压力。