초록 ▼

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 exchan

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.

대표청구항 ▼

[ What is claimed is:] [1.] A method of controlling 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 compartme

[ What is claimed is:] [1.] A method of controlling 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, comprising the steps of:entering a shutdown signal for temporarily shutting down the fuel-combustion heater;starting to measure a period of time after said shutdown signal is entered;enabling entry of a canceling signal for canceling said shutdown signal to cancel the shutdown of the fuel-combustion heater, only if said canceling signal is entered within said period of time; andcontinuing operation of said fuel-combustion heater if said canceling signal is entered within said period of time, and extinguishing said combustion heater if said period of time expires without the canceling signal being entered.