Control apparatus for hybrid vehicle, hybrid vehicle, and control method for hybrid vehicle

摘要

An intermittent operation control is executed, wherein a hybrid vehicle is run with a running drive source while an internal combustion engine is intermittently operated in the intermittent operation control. When the internal combustion engine is restarted after a stop due to the intermittent operation control, a rapid warm-up control is executed in which a catalytic converter is rapidly warmed up by retarding the ignition timing of the internal combustion engine. In addition, when the internal combustion engine is restarted, the internal combustion engine is operated only by port injection until the pressure of fuel for in-cylinder injection reaches a reference set pressure. Subsequently, when the pressure of the fuel for in-cylinder injection reaches the reference set pressure, the in-cylinder injection is started.

主权项

1. A control apparatus provided in a hybrid vehicle, wherein the hybrid vehicle includes a running drive source and a catalytic converter for exhaust gas purification, the running drive source has a motor and an internal combustion engine configured to execute in-cylinder injection and port injection, and the catalytic converter is provided on an exhaust path of the internal combustion engine, the control apparatus comprising
an electronic control unit that is configured to: execute an intermittent operation control in which, while the internal combustion engine is intermittently operated, the hybrid vehicle is run with the running drive source; execute a catalyst rapid warm-up control in which the catalytic converter is rapidly warmed up by retarding ignition time of the internal combustion engine, when the internal combustion engine is restarted after a stop of the internal combustion engine due to the intermittent operation control; operate the internal combustion engine only by the port injection until a pressure of fuel for the in-cylinder injection reaches a preset reference set pressure, when the internal combustion engine is restarted; and start the in-cylinder injection when the pressure of the fuel for the in-cylinder injection reaches the preset reference set pressure.