VEHICULAR CONTROL DEVICE AND VEHICULAR CONTROL METHOD

摘要

In a vehicle including an engine, an electrically heatable catalyst device (EHC), and a first motor generator that generates electric power in accordance with the engine's motive power with the vehicle in a substantially stopped state with a vehicular speed lower than a threshold vehicular speed, an ECU determines, based on an amount A by which an accelerator pedal is operated and a vehicular speed V, whether a large accelerator operation has been performed with the vehicle in the substantially stopped state. If the ECU determines that the large accelerator operation has been performed with the vehicle in the substantially stopped state, the ECU activates an energization timer, and before the energization timer reaches a reference energization period of time α, the ECU energizes the EHC, and once the energization timer has reached the reference energization period of time α, the ECU ceases energizing the EHC.

主权项

1. A vehicular control device for a vehicle including an engine, an electrically heatable catalyst device purifying exhaust gas of said engine, and a first rotating electric machine, said first rotating electric machine generating electric power in accordance with motive power of said engine for a low speed state with a vehicular speed being a speed lower than a first vehicular speed, the vehicular control device comprising:
a switching device switching an electrical connection state of said first rotating electric machine and said catalyst device; and an energization control unit controlling said switching device to control energizing said catalyst device, when said vehicle starts up a hill or in said low speed state an accelerator is operated in an amount exceeding a threshold amount to perform a large accelerator operation, said energization control unit estimating a temperature of a catalyst attained when said catalyst device is energized for a reference period of time, and if said catalyst attain a temperature lower than a tolerable temperature, said energization control unit energizing said catalyst device, whereas if said catalyst attains a temperature exceeding said tolerable temperature, said energization control unit avoiding energizing said catalyst device.