Provided is a motor drive control apparatus, an electric power steering apparatus, and a vehicle suitable for reducing a battery power consumption for detecting motor rotation information during an OFF state of an ignition switch. The motor drive control apparatus includes first and second rotation information detection function units (51 and 52) and a power control unit (50). When it is determined that the ignition switch is changed from the ON state to the OFF state, the power control unit (50) intermittently supplies power from a battery to the first and second rotation information detection function units (51 and 52) at a first interval while a motor rotation number is lower than a preset rotation number set in advance. When it is determined that the motor rotation number becomes equal to or higher than the preset rotation number during this intermittent supply state, the power control unit (50) intermittently supplies the power from the battery to the first and second rotation information detection function units (51 and 52) at a second interval shorter than the first interval while the motor rotation number is equal to or higher than the preset rotation number.
MOTOR DRIVE CONTROL DEVICE, ELECTRIC POWER STEERING DEVICE, AND VEHICLE
MOTORSTEUERUNGSVORRICHTUNG, ELEKTRISCHE SERVOLENKVORRICHTUNG UND FAHRZEUG
DISPOSITIF DE COMMANDE D'ENTRAÎNEMENT DE MOTEUR, DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE ET VÉHICULE
2020-04-01
Patent
Electronic Resource
English
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