发明授权
US09490732B2 Power conversion apparatus, electronic steering system, electric vehicle, electronic control throttle and power brake
有权
电力转换装置，电子转向系统，电动汽车，电子控制节气门和动力制动
- 专利标题： Power conversion apparatus, electronic steering system, electric vehicle, electronic control throttle and power brake
- 专利标题（中）： 电力转换装置，电子转向系统，电动汽车，电子控制节气门和动力制动
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申请号： US14379669申请日： 2013-02-18
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公开(公告)号： US09490732B2公开(公告)日： 2016-11-08
- 发明人: Nobuyasu Kanekawa , Ryoichi Kobayashi , Tomonobu Koseki , Tomishige Yatsugi
- 申请人： Hitachi Automotive Systems, Ltd.
- 申请人地址： JP Ibaraki
- 专利权人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
- 当前专利权人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
- 当前专利权人地址： JP Ibaraki
- 代理机构： Volpe and Koenig, P.C.
- 优先权： JP2012-066246 20120322
- 国际申请： PCT/JP2013/053792 WO 20130218
- 国际公布： WO2013/140906 WO 20130926
- 主分类号： B62D5/04
- IPC分类号： B62D5/04 ; H02P6/14 ; H02M1/32 ; H02M7/5387
摘要：
An object is to prevent the motor from carrying out a regeneration braking operation even if any of phase output lines is short-circuited to VB or GND in addition to a short-circuit failure occurring in a MOSFET of an inverter. The semiconductor switching devices of a power conversion apparatus each have a diode that is coupled in parallel to each of the semiconductor switching devices. At least one of the diodes are connected in a direction opposite to the direction in which other diodes are oriented on a current path between the power supply and the ground. Further, at least one of diodes is connected in a direction opposite to the direction in which other diodes are oriented on a current path between the output of the motor and the power supply and on a current path between the output of the motor and the ground.
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