Vehicle air-conditioner control system and fuel supply cut-off

摘要

A vehicle air conditioner control system has an air conditioning device for performing a refrigerating cycle, having a compressor that intakes, compresses, and discharges a refrigerant, a condenser that condenses the refrigerant discharged from the compressor, an expansion valve that depressurizes the refrigerant condensed by the condenser, an evaporator that performs heat exchange between open air and the refrigerant to vaporize the refrigerant, a compressor ON/OFF control device that controls a running rate of the compressor by alternating between an ON state and an OFF state, a vehicle deceleration fuel cut-off executing device that performs cut-off fuel supply during vehicle deceleration, and a fuel supply recovery executing device that cancels fuel cut-off and recovers fuel supply during vehicle deceleration fuel cut-off period based on a demand to turn on the compressor.

主权项

1. A vehicle air conditioner control system comprising:
an air conditioning device for performing a refrigerating cycle, comprising:
a compressor that intakes, compresses, and discharges a refrigerant;a condenser that condenses the refrigerant discharged from the compressor;an expansion valve that depressurizes the refrigerant condensed by the condenser;an evaporator that performs heat exchange between open air and the refrigerant to vaporize the refrigerant; a compressor ON/OFF control device that controls a running rate of the compressor by alternating between an ON state and an OFF state; a vehicle deceleration fuel cut-off executing device that performs cut-off of a vehicle fuel supply during vehicle deceleration; and a fuel supply recovery executing device that cancels fuel cut-off and recovers fuel supply during a vehicle deceleration fuel cut-off period based on a demand to turn on the compressor, wherein the compressor ON/OFF control device keeps the OFF state of the compressor and prohibits fuel supply recovery even when the demand to turn on the compressor is generated, if a vehicle speed is between a first vehicle speed for fuel supply recovery with the demand to turn off the compressor and a second vehicle speed for fuel supply recovery with the demand to turn on the compressor during deceleration fuel cut-off with OFF state of the compressor.