The invention relates to a control method and device of a vehicle-mounted hydrogen system and the vehicle-mounted hydrogen system, and belongs to the field of fuel cell buses. The method comprises: establishing a pressure prediction model of an output gas of the vehicle-mounted hydrogen system, and determining a pressure prediction value used for controlling the pressure of the output gas of the vehicle-mounted hydrogen system according to the pressure prediction model; calculating a difference value between the pressure prediction value and a set target pressure value to obtain a prediction error; obtaining an actual pressure value of output gas of the vehicle-mounted hydrogen system, and calculating a difference value between the actual pressure value and the target pressure value to obtain an actual error; and comparing the prediction error with the actual error, and when the prediction error is smaller than the actual error, outputting a pressure prediction value of the next momentby using the pressure prediction model as a target pressure of the next moment to control the vehicle-mounted hydrogen system to output gas. The change trend of the output pressure of the vehicle-mounted hydrogen system is judged in advance, and the pressure of the output gas of the vehicle-mounted hydrogen system is adjusted in advance, so that the supplied hydrogen can meet the requirements ofa fuel cell system.
本发明涉及一种车载氢系统的控制方法、装置及车载氢系统,属于燃料电池客车领域。方法包括:建立车载氢系统输出气体的压力预测模型,根据压力预测模型确定用于控制车载氢系统输出气体压力的压力预测值;计算压力预测值与设定的目标压力值间的差值,得到预测误差;获取车载氢系统输出气体的实际压力值,计算实际压力值与目标压力值间的差值,得到实际误差;比较预测误差和实际误差,当预测误差小于实际误差时,利用压力预测模型输出下一时刻的压力预测值,作为下一时刻的目标压力,控制车载氢系统输出气体。本发明通过预先判断车载氢系统输出压力的变化趋势,提前调节车载氢系统输出气体的压力,使供给的氢气能够满足燃料电池系统的需求。
Control method and device of vehicle-mounted hydrogen system and vehicle-mounted hydrogen system
一种车载氢系统的控制方法、装置及车载氢系统
2020-06-05
Patent
Electronic Resource
Chinese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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