Control device for vehicle

摘要

At a hybrid vehicle including a driving power generation device with an engine, a first MG (motor generator) and a second MG, and a transmission device including a power split mechanism coupling an output shaft to the engine and the first MG, and a transmission coupling an output shaft to the second MG, an ECU stops the driving power generation device when the transmission device is in error. Then, the ECU determines whether the vehicle is actually stopped or not based on a detection value from a wheel speed sensor, and maintains the supply of electric power from the battery until a determination is made that the vehicle has actually stopped.

主权项

1. A control device for a vehicle, said vehicle including
a wheel including at least a driving wheel, an output shaft coupled to said driving wheel, a power generation device including an internal combustion engine, a first rotating electric machine and a second rotating electric machine driven by electric power supplied from a power storage device via a power line for generating driving power to rotate said output shaft, a transmission device including a planetary gear mechanism having a first rotational element connected to said internal combustion engine, a second rotational element connected to said first rotating electric machine and a third rotational element connected to said output shaft, and a transmission provided between said second rotating electric machine and said output shaft, and an open/close device for opening and closing a conduction path between said power storage device and said power line, said control device comprising an electronic control unit having a central processing unit and memory, the electronic control unit further comprising: a stop unit stopping an operation of said power generation device when said first rotating electric machine is disconnected from said internal combustion engine due to a malfunction of said planetary gear mechanism, wherein the operation is the generation of driving power to the vehicle, a determination unit determining whether rotation of said wheel has stopped or not after the operation of said power generation device is stopped, and a control unit maintaining said open/close device at a closed state until said determination unit determines that rotation of said wheel has stopped, after operation of said power generation device is stopped, and switching said open/close device to an open state when said determination unit determines that rotation of said wheel has stopped.