The invention discloses an energy management method of a hybrid electric vehicle based on a super capacitor, which comprises the following steps: acquiring a running state decision signal of the vehicle, and determining the running state of the vehicle; according to the running state of the vehicle, an energy management strategy corresponding to the running state is executed, and a torque value of energy needing to be recycled is obtained; the running state of the vehicle comprises a stable running state and an abrupt change running state; when it is determined that the current operation state is a stable operation state, an equivalent fuel minimum control strategy is adopted to adjust power flow between an engine and a motor; and when it is determined that the current operation state is the abrupt change operation state, a throttle valve opening degree dynamic adjusting strategy is adopted, and the throttle valve opening degree is adjusted. The power flow between an engine and a motor and the opening degree of a throttle valve can be adjusted according to the running state of an automobile, and excessive fuel injection during sudden speed change of the engine is avoided. Fuel consumption is reduced, and fuel economy and riding comfort are improved.
本发明公开了一种基于超级电容的混合动力汽车的能量管理方法,包括:采集车辆的运行状态决定信号,确定车辆的运行状态;根据车辆的运行状态,执行与运行状态对应的能量管理策略,获取需回收能量的扭矩值;所述车辆的运行状态包括:稳定运行状态和突变运行状态;当确定当前的运行状态为稳定运行状态时,采用等效燃油最小控制策略对发动机和电机间功率流进行调节;当确定当前的运行状态为突变运行状态,采用节气门开度动态调节策略,对节气门开度进行调整。能够根据汽车的运行状态对发动机和电机间功率流进行调节以及节气门开度的调节,避免发动机在突然变速时燃油过度喷射。减少燃油消耗,提高燃油经济性和乘坐舒适性。
Energy management method of hybrid electric vehicle based on super capacitor
一种基于超级电容的混合动力汽车的能量管理方法
2024-08-09
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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