Vehicle and method for controlling vehicle

摘要

A vehicle includes an engine, an EHC (electrical heated catalyst), a first MG (motor generator) generating a counter electromotive force at the time of vehicle collision, a battery, a PCU (power control unit) having a converter and an inverter performing power conversion between the battery and the first MG, and an ECU. The PCU is connected to the battery through an SMR (system main relay). The EHC is connected between the converter and the inverter through EHC relay. The ECU determines whether or not vehicle collision has occurred. When the vehicle collision has occurred, the ECU opens the SMR to electrically separate the battery and the PCU and closes the EHC relay to electrically connect the EHC and the first MG, so that the counter electromotive force generated in the first MG at the time of vehicle collision is consumed at the EHC.

主权项

1. A vehicle comprising:
a rotational electric machine; a power storage device configured to store power for driving said rotational electric machine; an inverter configured to perform electric power conversion between said power storage device and said rotational electric machine; an electric resistor electrically connected to between DC terminals of said inverter and configured to convert electric energy into heat energy; a switching device including a switching circuit configured to switch an electric connection state between said electric resistor and said rotational electric machine; and a control device controlling said switching circuit, wherein said rotational electric machine generates a counter electromotive force with rotation caused by reduction of a rotational speed of wheels at the time of a vehicle collision, wherein said control device is configured to control said switching circuit at the time of the vehicle collision to electrically connect said electric resistor and said rotational electric machine to allow said electric resistor to consume the counter electromotive force generated in said rotational electric machine at the time of the vehicle collision.