HEATING CONTROL METHOD AND DEVICE FOR HYBRID ELECTRIC VEHICLE

• Main Authors: HA DONG SU, SHIN DONG JUN, LEE JEA MUN
• Format: Patent
• Language: English; Korean
• Published: 22.04.2022
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The present invention is to provide a heating control method for a hybrid vehicle. In conditions where a vehicle is stopped for a long time in a low outside temperature and the coolant temperature drops significantly, the heating control method for a hybrid vehicle can suppress switching to FATC engine on request (FEOR) control by enabling an engine to be turned on by entering the idle mode according to the cooling water temperature drop slope for each heating load during the pre-FATC engine on request (PFEOR) control, and, accordingly, can improve the indoor heating performance and fuel efficiency by minimizing fuel consumption in non-driving conditions. 본 발명은 외기온이 낮은 상태에서 차량 정차 상황이 길어지고, 냉각수온이 크게 하락하는 조건에서, PFEOR 제어시 난방부하별 냉각수 온도 하강 기울기에 따라 아이들 모드 진입에 의한 엔진 ON이 이루어지도록 함으로써, FEOR 제어로 전환되는 것을 억제시킬 수 있고, 그에 따라 실내 난방 성능을 향상시킬 수 있을 뿐만 아니라 비구동 조건에서의 연료 소모를 최소화하여 연비 향상을 도모할 수 있는 하이브리드 차량의 난방 제어 방법을 제공하고자 한 것이다.