Method and system for evaluating travelable mileage of fuel cell hybrid electric vehicle

• Main Authors: XU BIN, FAN HAIMEI, DONG DEBAO, YANG KUN, ZHAO LIXIN, XIONG JINFENG
• Format: Patent
• Language: Chinese; English
• Published: 23.10.2020
• Subjects: CALCULATING; COMPUTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PERFORMING OPERATIONS; PHYSICS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a method for evaluating a travelable mileage of a fuel cell hybrid electric vehicle. The method comprises the steps of acquiring vehicle parameters in each communication period, wherein the vehicle parameters include a fuel cell stack voltage Vfc, a current Ifc, a storage battery voltage VBat, a current IBat, a super capacitor voltage VCap, a current ICap and a fuel cell system bench test efficiency eta fcs test; calculating equivalent fuel consumption Qt of circulation in each kilometer in real time; calculating a circulation mileage St in real time, and acquiring real-time equivalent fuel consumption Qs per kilometer; and calculating the real-time travelable mileage S' of the vehicle. And the travelable mileage can be evaluated in real time to obtain a relativelyaccurate travelable mileage. 本发明公开了一种燃料电池混合动力汽车的可行驶里程评估方法，包括：获取每个通讯周期内的车辆参数，所述车辆参数包括：燃料电池堆电压Vfc、电流Ifc、蓄电池电压VBat、电流IBat、超级电容电压VCap、电流ICap、燃料电池系统台架测试效率ηfcs测；实时计算每公里内循环等效燃料消耗量Qt；实时计算循环里程St，得到实时每公里等效燃料消耗量Qs；计算车辆实时可行驶里程S'。可以实时进行可行