The invention provides a plug-in hybrid electric vehicle energy management method. A vehicle control unit predicts a vehicle state of the next stage according to current state information of a currentvehicle speed, an acceleration and a passenger cabin temperature; a required torque and heat required by the passenger cabin are calculated; engine power and motor power of the whole vehicle are optimally distributed; control variables including the engine power, the motor power and heating resistor power are output; and according to the state of the engine, heating modes of the passenger cabin include three modes: 1, independent heating of waste heat of the engine; 2, independently heating by an HVAC heating resistor; and 3, a hybrid heating mode. An electric quantity is reasonably distributed in a whole driving cycle, and a pure electric mileage is increased; frequent starting of the engine is avoided; and engine waste heat is fully utilized, and fuel consumption is reduced.
本发明提供一种插电式混合动力汽车能量管理方法,整车控制器根据当前车速,加速度、客舱温度的当前状态信息预测下一阶段车辆状态;计算需求转矩和客舱需求的热量;对整车发动机功率以及电机功率进行优化分配;输出控制变量,包括发动机功率、电机功率、加热电阻功率;根据发动机状态,对客舱的加热模式有三种模式:1.发动机余热单独加热;2.HVAC加热电阻单独加热;3.混合加热模式。本发明使电量合理分配在整个行驶循环,提高纯电动里程;避免发动机频繁启动;充分利用发动机余热,减少燃料消耗。
Plug-in hybrid electric vehicle energy management method
一种插电式混合动力汽车能量管理方法
2020-10-30
Patent
Elektronische Ressource
Chinesisch
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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