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    • 2. 发明申请
    • WIPING SYSTEM FOR VEHICLES
    • 车辆擦拭系统
    • WO1988004623A1
    • 1988-06-30
    • PCT/EP1987000725
    • 1987-11-24
    • SWF AUTO-ELECTRIC GMBHGILLÉ, GüntherGOERTLER, Horst
    • SWF AUTO-ELECTRIC GMBH
    • B60S01/08
    • B60S1/0807Y10S318/02
    • A wiping system for vehicles has a switching circuit (20) which derives, from a timing signal, time-dependent switching and driving signals that determine for example the duration of the intervals in an intermittent mode of operation or the reference time span for implementing anti-blocking protection of the wiper motor (13). The timing frequency of this oscillator (30) is kept constant during the intervals in the intermittent mode of operation, otherwise it varies depending on the battery voltage when the wiper motor is operating. The intervals are thus maintained with great precision, whereas the reference time span is adapted to the wiping time that changes depending on the battery voltage when the motor is operating, thus ensuring in an optimal manner anti-blocking protection.
    • 用于车辆的擦拭系统具有切换电路(20),其从定时信号导出时间相关的切换和驱动信号,所述切换和驱动信号例如确定间歇操作模式中的间隔的持续时间或用于实施反向 刮水器马达(13)的阻挡保护。 该振荡器(30)的定时频率在间歇操作模式的间隔期间保持恒定,否则根据刮水器马达运行时的电池电压而变化。 因此,以高精度保持间隔,而参考时间跨度适应于当电动机运行时根据电池电压而变化的擦拭时间,从而确保最佳的防结块保护。