Control device and control method for hybrid vehicle

A control system for controlling a hybrid vehicle including an internal combustion engine and a motor/generator as a power source, a friction engagement element interposed between the internal combustion engine and the motor/generator, a transmission interposed between the power source and drive wheels, a battery subject to charge and discharge by the motor/generator, and an opening detection mechanism to detect an accelerator opening, the control system comprising:

• an abnormality detection mechanism configured to detect an abnormality of at least one of the internal combustion engine, the friction engagement element and the transmission;
• a start control unit configured to start the internal combustion engine;
• and
• a start determination mechanism configured to determine whether or not to allow the internal combustion engine to be started,
• to inhibit the start control unit from starting the internal combustion engine when the abnormality is detected by the abnormality detection mechanism, and
• to maintain the inhibition of the start control unit from starting the internal combustion engine when the accelerator pedal opening is larger than a predetermined opening degree even when the abnormality has been eliminated.