CONTROL DEVICE FOR HYBRID VEHICLE

摘要

Provided is a control device for a hybrid vehicle capable of attaining an assist torque generated by a clutch mechanism at an appropriate timing, upon starting the engine. Since an electronic control device outputs an engagement command for engaging a clutch (clutch mechanism) at a time preceding an (ignition) start command time for igniting an engine by a preceding-sending time, the clutch becomes engaged when the engine speed starts to increase, and the assist torque generated by the clutch mechanism can thus be obtained at an appropriate timing. Because the engine speed that was once increased upon starting the engine is not decreased, the energy that was consumed for starting the engine can be effectively used.

主权项

1. A control device for a hybrid vehicle including an engine and a motor generator used as drive sources, a clutch mechanism that disconnects the engine and the motor generator from each other, and an engine starter that starts the engine, with the clutch mechanism being in a disengaged state, wherein
upon starting the engine with the engine starter, both of the motor generator and the engine starter are used to start the engine, with the clutch mechanism being engaged, and an engagement command for engaging the clutch mechanism is sent before sending a start command for starting the engine, a preceding sending time of sending the engagement command for engaging the clutch mechanism, which precede sending the start command for starting the engine, is a time that is equal to or greater than a difference between a start response time from the sending of the start command for starting the engine to a time that the rotation speed of the engine starts to increase, and a clutch response time from the sending of the engagement command for engaging the clutch mechanism to a rise in a transmission torque of the clutch mechanism, and the preceding sending time or the start response time is determined based on a stop phase position of the engine according to a pre-stored relation.