发明名称 |
Control for pumping devices used in vehicles |
摘要 |
Disclosed is a control for a pumping device in vehicle application in which, upon throwing a power switch (6) and closing a brake actuator switch (8), a second driver transistor (76) is rendered conductive and a first driver transistor (75) non-conductive, thereby rendering a power transistor (71) conductive. The power transistor in the conductive state enables a DC motor (2) to be supplied with a DC voltage from batteries (5). The DC motor drives a pump (1) which in turn feeds a pressure to activate a pressure-operating unit (10). A pressure detecting switch (4) detects the pressure of the pump and particularly provides a pressure detection signal when the pressure reaches a predetermined value. In response to the pressure detection signal the first driver transistor becomes non-conductive and the power transistor becomes conductive, thus supplying the DC voltage to the DC motor.
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申请公布号 |
US4524311(A) |
申请公布日期 |
1985.06.18 |
申请号 |
US19830549182 |
申请日期 |
1983.11.04 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YOKOTA, MITSUYOSHI;MATSUMOTO, AKIO |
分类号 |
B60T17/02;F04B49/02;F04B49/06;(IPC1-7):B60T13/66 |
主分类号 |
B60T17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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