| 摘要 |
When the amount of heat stored in a heat storage container 16 is greater than or equal to a determination value MJ at the time of initiation of system start-up in a hybrid vehicle, heating by thermal energy stored in the heat storage container 16 is carried out only on an internal combustion engine 1. This increases the engine temperature to a permitting temperature for intermittent control of the engine 1 or higher, so that the intermittent control is executed at an early stage after the initiation of the system start-up in the hybrid vehicle. Also, oil viscosity in the engine 1 is rapidly lowered to decrease the resistance to operation of the engine 1. If the amount of the heat stored in the heat storage container 16 is less than the determination value MJ, the heating by the thermal energy stored in the heat storage container 16 is performed on the transaxle 12 under a prescribed condition. As a result, the fuel efficiency of the engine 1 is improved. |
