| 摘要 |
PROBLEM TO BE SOLVED: To perform engine control achieving compatibility between energy saving and comfortability in a vehicle compartment by a simple structure.SOLUTION: A torque required for driving the compressor 14 is estimated when a compressor 14 is driven by starting a stopped engine 52 based on a pressure of a refrigerant discharged by a capacitor 16, a temperature of an evaporator 20, and a flow rate of a refrigerant inhaled by the compressor 14, detected by a refrigerant pressure sensor 22, an evaporator temperature sensor 24, and a refrigerant flow rate sensor 26, respectively before the engine 52 is stopped. Then, based on the estimated torque, a time to the start of the engine 52 after the stop of the engine 52 is calculated. Thus, the engine stop time can be calculated in consideration of actuating an air conditioner for a vehicle when the engine is stopped in fuel-efficient travel. That enables engine control achieving compatibility between energy saving and comfortability in a vehicle compartment by a simple structure. |
