| 摘要 |
PROBLEM TO BE SOLVED: To ensure safety by stopping a vehicle when normal transmission of power to a drive wheel is difficult due to occurrence of an abnormality in a hybrid vehicle. SOLUTION: When abnormalities occur in the battery management system and in HEV-ECU system, a T/M-ECU performs stop control in place of the HEV-ECU. An engine is stopped by an injector power supply stop signal (S322) and control power supplies for first and second motors are turned off to stop the first and second motors (S323, S324). The controllers for motor A and motor B are disconnected from a battery by turning a contactor off with a contactor control signal (S325) to bring about a state where normal control can be performed using abnormality control signals for the controllers of motor A and motor B as normal signals (S326, S327). Furthermore, a lockup clutch is turned off to set the speed change ratio of a CVT at a specified value (neutral value) (S329) thus ensuring safety. |
