하이브리드 자동차를 위한 효율적 차량 실내 난방 제어

The latest vehicle technology is concentrated in the fuel efficiency and alternative energy. The hybrid vehicle is the one of vehicles reflected the latest vehicle technology. To improve the fuel economy in a hybrid vehicle becomes more and more important recently. The energy consumption for interior heating in a vehicle affects the fuel economy. The calorie of heater is decided by the temperature of the engine coolant through the heater. So it needs to turn the engine on to keep the heater performance. It’s very important to reduce the time of the engine drive mode for interior heating. This paper presents the optimal climate system control method to improve fuel economy and thermal comfort in a hybrid vehicle by using a discharge temperature sensor. The climate controller can decide the optimized timing of "engine on request" to keep the appropriate calorie of heater on the motor drive mode because it"s possible to estimate the optimized calorie of heater to meet the requested discharge temperature target by using discharge air temperature sensor in the ‘temperature door control’ and the ‘engine on request’ algorithm.