METHOD FOR OPERATING AN AUXILLARY HEATER FULL AUTO TEMPERATURE CONTROL FOR A VECHICLE

摘要

An auxiliary heater driving method for a vehicle FATC is provided to control the driving flexibly by monitoring a battery voltage in winter. Winter season for driving an auxiliary heater is checked by the atmospheric temperature sensor of a vehicle(S10,S20). In winter, the auxiliary heater is driven according to driving speed calculated from a driving distance and speed of the vehicle(S30). The driving of the auxiliary heater is limited and a warning single is output if short distance driving generates frequently and if a batter voltage is lower than a threshold valve(S41-S45,S51-S55,S71).