This AC rotating machine control device includes: power limiting means 6 for limiting drive power supplied for driving the AC rotating machine; and power feed means 10 for, when sensor abnormality determination means 3 determines that the rotational position sensor is abnormal, on the basis of the estimated rotational position, supplying the AC rotating machine with power obtained by adding rotational position estimation power supplied for the rotational position estimation means 9 to estimate the rotational position, to the drive power limited by the power limiting means, wherein the power limiting means 6 limits drive current at least during a predetermined period since the sensor abnormality determination means 3 determines that the abnormality occurs until estimated error of the estimated rotational position falls within a predetermined range.
AC rotating machine control device and electric power steering device equipped with same
2018-03-06
Patent
Electronic Resource
English
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62D MOTOR VEHICLES , Motorfahrzeuge / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
AC ROTATING MACHINE CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE EQUIPPED WITH SAME
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