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    • 10. 发明授权
    • Protective circuit in a device for reducing vibrations of a vehicle body
    • 用于减少车​​身振动的装置中的保护电路
    • US5087869A
    • 1992-02-11
    • US645610
    • 1991-01-25
    • Shigeru KuriyamaYozo NakamuraYuji MaedaKenichi NakamuraKeiichi MashinoYuzo KadomukaiMasao FukushimaKei Murakami
    • Shigeru KuriyamaYozo NakamuraYuji MaedaKenichi NakamuraKeiichi MashinoYuzo KadomukaiMasao FukushimaKei Murakami
    • F02B63/00F02B63/04F02B75/06F16F15/02G05D19/02H02J7/14H02P9/48
    • H02J7/1446F02B63/04F02B75/06F16F15/02G05D19/02H02P9/48B60L2270/145Y02T10/642
    • The present invention relates to an electrical protective circuit, used when abnormality occurs, in a vibration suppressing apparatus which changes the load torque on a generator such as an alternator fixed on the engine to generate an angle moment on the generator body to cancel rough idling engine vibrations to suppress vehicle body vibrations due to the rough idling. In the inventive vibration suppressing apparatus, a generator is fixed on the engine which generator includes a voltage regulator to control a field winding current such that a fixed voltage is output to a battery. The generation of engine rough idling is detected on the basis of either a change in the engine speed or a change in the engine vibrations. If rough idling is detected, a high voltage circuit is connected to the field winding to increase the field winding current and hence the load torque on the generator. In the inventive protective circuit, the battery voltage is compared with a predetermined reference value when no rough idling is detected. If the battery voltage exceeds the reference value, a changeover signal is generated and the high voltage circuit is disconnected from the field winding in response to the changeover signal.
    • 本发明涉及在异常发生时使用的电气保护电路,其在改变固定在发动机上的交流发电机等发电机上的负载转矩的振动抑制装置中,以在发电机主体上产生角度矩,以消除粗糙的空转引擎 振动,以抑制车身振动由于崎岖的空转。 在本发明的振动抑制装置中,发电机固定在发动机上,发电机包括电压调节器,以控制励磁绕组电流,使得固定电压输出到电池。 基于发动机速度的变化或发动机振动的变化来检测发动机粗糙空转的产生。 如果检测到粗糙的空转,则高压电路连接到励磁绕组,以增加励磁绕组电流,从而增加发电机的负载转矩。 在本发明的保护电路中,当没有检测到粗糙的空转时,将电池电压与预定的参考值进行比较。 如果电池电压超过基准值,则响应于切换信号,产生切换信号,高压电路与励磁绕组断开。