A control apparatus for a vehicle controls the input power of an AC motor to reduce the difference (Vs) between a target value (Vs*) and detected value (Vsf) of the system voltage. When a rotation speed (N2) of the AC motor increases to be higher than a predetermined value (Nref) or when a command value (T2*) of a torque generated by the AC motor increases to be greater than a predetermined value (Tref), a current vector is adjusted to a value on a lagging side in order to control the input power of the AC motor. Thus, an input power operation quantity (Pm) required for stabilizing the system voltage can be realized with a high degree of reliability. When the rotation speed and the command value decrease, the current vector is adjusted to a value on a leading side in order to control the input power of the AC motor.
Control apparatus for electric vehicles
Steuervorrichtung für elektrische Fahrzeuge
Appareil de commande de véhicules électriques
2016-10-12
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Power control apparatus and methods for electric vehicles
European Patent Office | 2016
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