MOTOR DRIVING DEVICE AND STEERING SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Jul 12, 2019
filing date -
Jul 12, 2019
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Abstract
A control unit determines a presence or absence of a short-circuit failure with respect to a target switch which is a phase-opening switch to be determined. At this time, after opening all the phase opening switches, the control unit drives an inverter to connect a power supply line provided with the target switch among the phase opening switches to ground. The control unit determines that the target switch has a short-circuit failure when a voltage of the power supply line in which the target switch is not provided is smaller than a predetermined voltage.
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