A vehicle including an AC rotating electric machine, an inverter, and an electronic control unit is provided. When an overcurrent abnormality occurs, i.e., phase current of a motor-generator exceeds a permissible value, in a high rotational speed region, the electronic control unit performs control (upshift control) for shifting up an automatic transmission provided between the motor-generator and driving wheels, or control (neutral control) for bringing the transmission into a released state, so as to reduce the rotational speed of the motor-generator. If phase current is detected even when an all-gate turn-off command is generated to the inverter while the rotational speed of the motor-generator is reduced to be within a low rotational speed region under the upshift control or neutral control, the electronic control unit determines that a short-circuit fault occurs in the inverter.
Vehicle including rotating electric machine, inverter, and electronic control unit; and control method for the same
2016-03-29
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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