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    • 24. 发明授权
    • Electrohydraulic brake booster and method of controlling same for smooth
brake pedal feel
    • 电动液压制动助力器及其控制方法,使制动踏板感觉平稳
    • US6007160A
    • 1999-12-28
    • US26973
    • 1998-02-20
    • Mark D. LubbersDanny R. MilotRichard J. BarronGregory J. Krawczyk
    • Mark D. LubbersDanny R. MilotRichard J. BarronGregory J. Krawczyk
    • B60T7/04F16D31/02
    • B60T7/042
    • A method of controlling the operation of an electrohydraulic brake booster to achieve a desired pedal feel. The method includes sensing brake pedal movement from a fully retracted rest position before a significant resistance to travel of the brake pedal is developed. The method further includes generating a command pulse that results in application of pressurized hydraulic fluid to the boost piston assembly sufficient to overcome preloaded spring forces and seal friction in the boost piston assembly that would otherwise tend to resist further brake pedal travel. The method further includes providing a control signal override when a brake pedal "bounce" condition is detected to avoid undesired vehicle braking. A brake pedal bounce condition may occur if the brake pedal is released suddenly so that the brake pedal returns to the fully retracted rest position rapidly enough to bounce off of a mechanical stop at that position and move in the brake apply direction.
    • 一种控制电动液压制动助力器的操作以实现期望的踏板感觉的方法。 该方法包括在制动踏板的显着阻力发展之前,从完全缩回的静止位置感测制动踏板的运动。 该方法还包括产生指令脉冲,其导致加压液压流体施加到升压活塞组件,足以克服预加载的弹簧力并密封增压活塞组件中的摩擦,否则其将倾向于抵抗进一步的制动踏板行程。 该方法还包括当检测到制动踏板“反弹”状况时提供控制信号超驰以避免不期望的车辆制动。 如果制动踏板被突然释放,制动踏板反弹状态可能会发生,使制动踏板迅速返回到完全缩回的停止位置,足以弹出该位置的机械止动件并在制动器施加方向上移动。