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    • 1. 发明授权
    • Anti-locking brake control system
    • 防抱死制动控制系统
    • US4921314A
    • 1990-05-01
    • US274051
    • 1988-09-26
    • Volker BraschelDieter SeitzJochen Schafer
    • Volker BraschelDieter SeitzJochen Schafer
    • B60T8/172B60T8/1761B60T8/1763B60T8/50B60T8/58B60T8/64
    • B60T8/58B60T8/17616B60T8/5006
    • An anti-locking brake control system for a motor vehicle comprises wheel speed sensors for determining the speeds of the individual vehicle wheels, an evaluation circuit which receives the wheels speed signals and generates brake pressure control signals, and a brake pressure control device responsive to the brake pressure control signals for controlling the brake pressure applied to the wheels. The evaluation (processing) circuit includes a brake pressure control unit which operates in such a manner that, after brake pressure decays, the brake pressure is first increased in a timed build-up with reference to the brake pressure build-up in a preceding control cycle, and thereafter the brake pressure is further increased by a sequence of pulses until an instability is again detected. The timed pressure build-up has at least two timed pressure build-up phases which have respective durations such that the duration of each one of the timed build-up phases in a given time pressure build-up is longer than the length of the subsequent timed build-up phase in the control cycle. In addition, the duration of the timed build-up is a function of the preceding pressure decay time, this function being such as to reduce the value of longer decay times relative to shorter decay times.
    • PCT No.PCT / EP87 / 00168 Sec。 371日期:1988年9月26日 102(e)1988年9月26日PCT PCT 1987年3月25日PCT公布。 第WO87 / 05869号公报 1987年10月8日。用于机动车辆的防抱死制动控制系统包括用于确定各车轮速度的车轮速度传感器,接收车轮速度信号并产生制动压力控制信号的评估电路,以及 制动压力控制装置响应于用于控制施加到车轮的制动压力的制动压力控制信号。 评价(处理)电路包括制动压力控制单元,其以这样的方式操作,即在制动器压力衰减之后,参考在前一控制中的制动压力积分,在定时积分中首先增加制动压力 循环,然后通过脉冲序列进一步增加制动压力,直到再次检测到不稳定。 定时压力累积具有至少两个定时压力建立阶段,其具有各自的持续时间,使得在给定时间压力积分中的每个定时积分阶段的持续时间长于随后的时间长度 在控制周期中定时建立阶段。 此外,定时累积的持续时间是前一个压力衰减时间的函数,该功能是相对于更短的衰减时间来减少较长的衰减时间的值。
    • 6. 发明授权
    • Slip control deceleration signal filtering system
    • 滑差控制减速信号滤波系统
    • US5335178A
    • 1994-08-02
    • US775945
    • 1991-10-21
    • Jochen SchaferThomas FrankFrank Bederna
    • Jochen SchaferThomas FrankFrank Bederna
    • B60T8/58B60L3/10G05B11/36B60T8/32
    • B60L3/10
    • The invention relates to a method for filtering out disturbances in the form of short term wheel acceleration signals when the wheel exhibits an overall deceleration, so that a more accurate deceleration signal can be used for control of drive slippage.Wheel speed v is measured at intervals T.sub.A and speed changes for each interval are determined. When a change is negative or zero following a positive change in a previous interval, the wheel speed is stored as a maximum speed v.sub.max while v continues to be measured and a counter determines the period of time .DELTA.t between the occurrence of v.sub.max and the instantaneous value v. Beginning at a predetermined filtering time .DELTA.T after storing v.sub.max, a quotient .DELTA.v/.DELTA.t representing the filtered slope of the value v is determined and used as a control variable to regulate wheel slippage.
    • PCT No.PCT / EP90 / 00503 Sec。 371日期1991年10月21日 102(e)日期1991年10月21日PCT 1990年3月30日PCT PCT。 出版物WO90 / 12702 日期:1990年11月1日。本发明涉及一种当车轮呈现整体减速度时,以短时轮加速度信号的形式滤除干扰的方法,从而可以使用更准确的减速信号来控制驱动滑移。 车轮速度v以间隔TA测量,并确定每个间隔的速度变化。 当在先前间隔中的正变化之后变化为负或零时,车轮速度被存储为最大速度vmax,而v继续被测量,并且计数器确定vmax的发生与瞬时的发生之间的时间段DELTA t 值v。在存储vmax之后的预定滤波时间DELTA T开始,确定表示值v的滤波斜率的商DELTA v / DELTA t并将其用作控制变量以调节车轮打滑。