The invention relates to the technical field of new energy automobiles, and discloses a hydrogen fuel cell vehicle energy control method and system.The method comprises the steps that limping time is obtained according to limping mileage and limping speed; according to the limping speed, power needed by limping of the vehicle is obtained through calculation; energy needed by limping is obtained according to the power needed by limping and the limping time; the low-temperature cold start requirement of the whole vehicle is judged according to the predicted shutdown environment temperature; when the whole vehicle has the low-temperature cold start requirement, energy needed by low-temperature cold start is obtained according to the predicted shutdown environment temperature, and total energy needed by limping is obtained by combining the energy needed by limping; when the whole vehicle does not have the low-temperature cold start requirement, the energy required for limping is the total energy required for limping; the throughput of the power battery system is further controlled and adjusted; obtaining adjustment output of the fuel cell system according to the throughput of the power cell system and the output relation curve of the power cell system and the fuel cell system; according to the invention, the risk of shutdown can be avoided, and the influence and cost caused by dragging the vehicle are reduced.
本申请涉及新能源汽车技术领域,公开了一种氢燃料电池车辆能量控制方法及系统,包括根据跛行里程和跛行速度得到跛行时间;根据跛行速度计算得到车辆跛行所需动力;根据跛行所需动力和跛行时间得到跛行所需能量;根据预计关机时环境温度判断整车低温冷启动需求;当整车有低温冷启动需求时,根据预计关机时环境温度得到低温冷启动所需要能量,结合跛行所需能量得到跛行所需总能量;当整车没有低温冷启动需求时,跛行所需能量即为跛行所需总能量;进而控制调节动力电池系统的吞吐量;根据动力电池系统的吞吐量和动力电池系统与燃料电池系统的输出关系曲线得到燃料电池系统的调整输出;本申请可避免停运的风险,降低因拖车辆产生的影响和费用。
Hydrogen fuel cell vehicle energy control method and system
一种氢燃料电池车辆能量控制方法及系统
2024-10-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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