There are provided a motor control apparatus, an electric power steering apparatus, and a vehicle, capable of controlling the driving of an electric motor accurately even when a failure occurs in a motor electric angle detecting unit that detects a motor electric angle. The motor control apparatus includes: a relative offset amount estimating unit (62) that estimates a relative offset amount (¸off) between a reference value (¸osr) of an output shaft rotational angle detection value (¸os) of a steering shaft (12), detected by an output-side rotational angle sensor (13c), and a motor electric angle original point (¸md) of a three-phase electric motor (22); and a motor electric angle estimating unit (63) that calculates a motor electric angle estimate (¸me) based on the output shaft rotational angle (¸os) and the relative offset amount (¸off), wherein when at least either one of a resolver (23a) and an angle computing unit (60) is abnormal, the driving of the three-phase electric motor (22) is controlled based on the motor electric angle estimate (¸me) estimated by the motor electric angle estimating unit (63).
MOTOR CONTROL DEVICE, ELECTRIC POWER STEERING DEVICE, AND VEHICLE
MOTORSTEUERUNGSVORRICHTUNG, ELEKTRISCHE SERVOLENKVORRICHTUNG UND FAHRZEUG
DISPOSITIF DE COMMANDE DE MOTEUR, DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE, ET VÉHICULE
2019-09-18
Patent
Elektronische Ressource
Englisch
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