본 발명에서는 결빙 가능성이 높은 차량 상태를 특정하고, 차량 상태 별로 다른 기준에 따라 연료전지 시스템을 제어함으로써 보다 효과적으로 공기 배기계 결빙을 방지할 수 있는 제어 방법을 제공하는 것에 목적이 있다. 이를 위해 본 발명에서는 냉각수 온도 및 외기온에 따른 공기 과급 제어, 차량 경사도에 따른 가중치를 적용한 공기 과급 제어, COD 히터를 이용한 강제 승온 로직을 실시하는 것에 특징이 있다.
A control method for a fuel cell system is provided to prevent freezing in an air exhaust system of the fuel cell system. The method prevents freezing in the exhaust system by specifying a vehicle condition in which possibility of freezing is high and operating the fuel cell system based on different vehicle-specific standards. The performs air supercharging control based on an ambient temperature and a temperature of cooling water, air supercharging control by applying weights based on inclinations of a vehicle, and a forced heating logic using a COD heater.
METHOD FOR CONTROLLING FUEL CELL SYSTEM TO PREVENT FREEZING OF AIR EXHAUST SYSTEM
연료전지 시스템의 공기 배기계 결빙 방지를 위한 제어 방법
2023-10-10
Patent
Electronic Resource
Korean
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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