发明名称 |
Motor direction control device for electromotive vehicles |
摘要 |
A motor direction control device id used for electromotive vehicles which has an electric motor adapted to cause the vehicles to move forwards and backwards. The motor direction control device includes a direction control level shiftable from a neutral position into forward or reverse position. Operatively connected to the direction lever is an elongated pliable strip which is slidable along a predefined moving way by the shifting operation of the direction control lever and carries a permanent magnet. First and second magnetolectric sensors are arranged in a spaced-apart relationship with each other along the moving way of the elongated strip, each of the magnetoelectric sensors capable of generating, when left deactivated, a position signal of first logic level and activatable by the permanent magnet to produce a position signal of second logic level as the direction control lever is shifted into the forward or reverse position. Responsive to the position signals of first and second logic levels, a microprocessor is adapted to control the direction of rotation of the electric motor. A Hall generator may be utilized as the magnetoelectric sensors.
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申请公布号 |
US5959421(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19970001518 |
申请日期 |
1997.12.31 |
申请人 |
DAEWOO HEAVY INDUSTRIES LTD.;DAEWOO HEAVY INDUSTRIES AMERICA CORPORATION |
发明人 |
CHERRY, JR., WESLEY ROBERT;LESKOVEC, EDWARD V. |
分类号 |
B60L15/00;B60L15/20;G01P3/487;H02P5/00;H02P7/06;(IPC1-7):B62D5/04;H02K23/00 |
主分类号 |
B60L15/00 |
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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