发明名称 |
METHOD, DEVICE, AND COMPUTER PROGRAM FOR DETERMINING AN OFFSET ANGLE IN AN ELECTRIC MACHINE |
摘要 |
The invention relates to a method and device for determining or checking the plausibility of an offset angle between an assumed orientation and an actual orientation of a rotor (20) relative to a stator (10) in an electric machine (1). In the method, the electric machine is first controlled in a quasi zero-current state, in which substantially no current should flow in the windings of the electric machine. Then a voltage indicator that specifies the direction of a voltage controlled in the electric machine during the quasi zero-current state is determined and subsequently transformed into a coordinate system that is fixed with respect to the rotor. The offset angle or an angle error with respect to a previously assumed, calibrated offset angle can be determined on the basis of the transformed voltage indicator. |
申请公布号 |
US2014055068(A1) |
申请公布日期 |
2014.02.27 |
申请号 |
US201213983258 |
申请日期 |
2012.02.02 |
申请人 |
TRAUTMANN KATHARINA;RAICHLE DANIEL;GOETTING GUNTHER;WIRTH MARTIN;ROBERT BOSCH GMBH |
发明人 |
TRAUTMANN KATHARINA;RAICHLE DANIEL;GOETTING GUNTHER;WIRTH MARTIN |
分类号 |
H02P6/18 |
主分类号 |
H02P6/18 |
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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