AIR CONDITIONER DRIVING SYSTEM OF HYBRID ELECTRIC VEHICLE

摘要

An air conditioner driving apparatus of a hybrid vehicle is provided to normally operate an air conditioner by counterrotating power of an ISG(Integrated Starter and Generator) without having a loading action of an engine when power between the ISG and the engine is cut by a one-way clutch. An air conditioner driving apparatus of a hybrid vehicle transmits external rotational power to a compressor driving shaft(31) to operate an air conditioner. An engine crank shaft and the compressor driving shaft are connected through a belt such that power is transmitted. A rotation axis(21) of an ISG(20) and the compressor driving shaft are connected through a pulley and a belt such that power is transmitted. A one-way clutch pulley which transmits only one-way rotational power is attached to the engine crank shaft or the rotation axis of the ISG. A solenoid valve for reversely changing a refrigerant incoming and outgoing direction is installed at a refrigerant inlet of a compressor(30). The ISG is reversely rotated when the engine is off. The compressor driving shaft is reversely rotated by the backlashing driving power of the ISG to operate the air conditioner when the torque between the rotation axis of the ISG and the engine crank shaft is cut by the one-way clutch pulley and the solenoid valve reversely changes the refrigerant incoming and outgoing direction.