A failure occurrence determiner may include a rotor angle measurement module that calculates a measurement value of an angular phase of a motor rotor with respect to a wheel, based on a rotational angle of the motor rotor that is detected by an angle sensor equipped to an electric motor and rotational information of the wheel that is detected by a speed sensor. It may also include a rotor angle estimation module that calculates an estimate value of the angular phase of the motor rotor with respect to the wheel, based on a motor torque command value for a motor controller. It may also include a failure determination module that determines that a failure has occurred in a motor drive device, if a difference between the measurement value and the estimate value of the angular phase of the motor rotor is equal to or greater than a threshold.
VEHICULAR MOTOR DRIVE DEVICE AND VEHICLE HAVING THE SAME MOUNTED THEREON
FAHRZEUGMOTORANTRIEBSVORRICHTUNG UND FAHRZEUG MIT DARAN MONTIERTER MOTORANTRIEBSVORRICHTUNG
DISPOSITIF D'ENTRAÎNEMENT DE MOTEUR DE VÉHICULE ET VÉHICULE SUR LEQUEL EST MONTÉ CE DISPOSITIF
2019-05-15
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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