In a method of obtaining a rotation speed of a right wheel (RWr), the method includes: detecting a motor rotation speed detection value (LMa) using a resolver (20A); detecting a wheel rotation speed detection value (LWa) using a wheel speed sensor (13A); obtaining a ring gear rotation speed conversion value (Rb) based on the motor rotation speed detection value (LMa) and the wheel rotation speed detection value (LWa); detecting a motor rotation speed detection value (RMa) using the resolver (20B); obtaining a wheel rotation speed conversion value (RWb) based on the ring gear rotation speed conversion value (Rb) and the motor rotation speed detection value (RMa); detecting a wheel rotation speed detection value (RWa) using a wheel speed sensor (20B); and selecting the wheel rotation speed conversion value (RWb) or the wheel rotation speed detection value (RWa), whichever is greater, as the rotation speed of the right wheel (RWr).
Vehicle drive device and method for controlling vehicle drive device
2015-08-25
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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