An electric vehicle is proposed which can achieve early detection of abnormal short-circuit of motor coils, thus avoiding various driving problems. The electric vehicle includes a motor unit (6) configured to drive a wheel (2). The motor unit (6) includes a synchronous motor with three-phase motor coils. The three-phase motor coils include a first motor coil, a second motor coil and a third motor coil of different phases. One end of the first motor coil, one end of the second motor coil and one end of the third motor coil are connected with each other at a neutral point in a star connection. The electric vehicle also includes an abnormal short-circuit monitor (95) configured to detect an abnormal short-circuit of the motor coils, and also includes an abnormalities-responsive disconnection unit (Es) configured to electrically disconnect the motor coils from the neutral point (P1).
ELECTRIC AUTOMOBILE, IN-WHEEL MOTOR DRIVE DEVICE, AND MOTOR CONTROL METHOD
ELEKTRISCHES AUTOMOBIL, IN-WHEEL-MOTORANTRIEBSVORRICHTUNG UND MOTORSTEUERUNGSVERFAHREN
AUTOMOBILE ÉLECTRIQUE, DISPOSITIF DE MOTEUR D'ENTRAÎNEMENT DE ROUE, ET PROCÉDÉ DE COMMANDE D'UN MOTEUR
2020-01-01
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16H Getriebe , GEARING / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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