发明名称 |
Detection Of A Wire-Break Fault During The Operation Of A Brushless D.C. Motor |
摘要 |
A method recognizes a wire-break fault during operation of a brushless DC motor. A switch-on delay duration of a transition of an electrical phase potential that rests on the stator winding phase from a switch-off potential to a switch-on potential and a switch-off delay duration of the transition of the phase potential from the switch-on potential to the switch-off potential are detected for a stator winding phase of the stator winding of the motor during each pulse width modulation cycle period. Moreover, a lower deviation limit is defined for a deviation of detected switch-off delay durations from detected switch-on delay durations. A wire-break fault is deduced if the deviations of the detected switch-off delay durations from the detected switch-on delay durations fall below the lower deviation limit. |
申请公布号 |
US2016149533(A1) |
申请公布日期 |
2016.05.26 |
申请号 |
US201414898828 |
申请日期 |
2014.05.28 |
申请人 |
CONTINENTAL AUTOMOTIVE GMBH ;CONTI TEMIC MICROELECTRONIC GMBH |
发明人 |
LOERINCZ ROBERT ISTVAN;SCHNELL ANDREAS |
分类号 |
H02P29/024;H02P6/12 |
主分类号 |
H02P29/024 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Hannover DE |