Method of and apparatus for controlling vehicular air-conditioning system

摘要

A control apparatus controls a vehicular air-conditioning system to control a fuel-combustion heater for producing combustion heat to heat a heating medium in a heating medium circuit which heats air flowing through a duct having air outlets openable into a passenger compartment, through heat exchange between the heating medium and the air with a heat exchanger disposed in the duct. The control apparatus has a shutdown controller for temporarily shutting down the fuel-combustion heater and an extinguishing controller for extinguishing the fuel-combustion heater based on a signal from the shutdown controller. The shutdown controller includes a shutdown signal entering unit for entering a shutdown signal to temporarily shut down the fuel-combustion heater and a shutdown signal canceler for canceling the shutdown signal in response to a canceling signal entered to cancel the shutdown of the fuel-combustion heater within a predetermined period of time after the shutdown signal has been entered. Even if an erroneous attempt is made to turn off the fuel-combustion heater, the fuel-combustion heater can quickly and reliably resume its operation to heat the passenger compartment.