METHOD FOR CONTROLLING A HEATING SYSTEM IN ELECTRIC VEHICLE INTEGRATED WITH BATTERY TEMPERATURE MANAGEMENT SYSTEM

摘要

PURPOSE: A method for controlling the heating system of an electric vehicle is provided to increase a range with overcoming the limit of energy storage density in a battery. CONSTITUTION: A method for controlling the heating system of an electric vehicle comprises following steps. Users operate a terminal to require the operation of remote heating while a vehicle battery is charged. A radio communication terminal receives a signal for operating the remote heating and delivers the signal to a control unit. The control unit checks the state of charge in the battery. If the state of charge in the battery satisfies an existing SOC(state of charge) value, the indoor heating load is calculated. Target indoor temperature is determined based on the indoor heating load. A heating system is operated and controlled to reach the target indoor temperature. The temperature of the battery is managed by controlling a battery temperature management system. A standard SOC value is determined from map data on the basis of the amount of solar radiation information and outdoor temperature. [Reference numerals] (AA) Remote heating operation mode; (BB) Start; (CC) Satisfying SOC conditions?; (DD) Air-conditioner ON; (EE) Calculating an indoor heating load; (FF) Determining a target temperature; (GG) Operating a heating system; (HH) Operating a battery blower and a rear exhaust fan; (II) Operating time >= Maximum operating time; (JJ) Air-conditioning OFF; (KK) Reserved heating operation mode; (LL) Start; (MM) Reserving an operation timing(sTime)?; (NN) Current time=(sTime-1hr)?; (OO) Air-conditioner ON; (PP) Calculating an air-conditioning timing(considering SOC conditions); (QQ) Reaching the air-conditioning timing?; (RR) Satisfying the SOC conditions?; (SS) End