CONTROL SYSTEM AND CONTROL METHOD FOR HYBRID VEHICLE

摘要

Provided are a hybrid vehicle control device and control method that, when a hybrid vehicle is driven by the motive force of an electric motor and/or an internal combustion engine, can suppress fuel consumption and can increase fuel efficiency. The control device (1), which is of a hybrid vehicle (V) and controls the operation of an internal combustion engine (3) and an electric motor (4), is provided with an ECU (2). When executing an EV driving mode, in accordance with a request torque (TRQ) and a vehicle speed (VP), the ECU (2) calculates an EV fuel consumption amount (FC_ev) and an engine fuel consumption amount (FC_eng) respectively from when executing the EV driving mode and an engine driving mode (step 41). When the engine fuel consumption amount (FC_eng) is less than the EV fuel consumption amount (FC_ev), the ECU (2) selects and executes the engine driving mode, and when the EV fuel consumption amount (FC_ev) is less than the engine fuel consumption amount (FC_eng), the ECU (2) selects and executes the EV driving mode (steps 42 and 43).