The invention discloses a range extender start-stop control method and system and a vehicle, and belongs to the field of hybrid vehicle control. According to the technical scheme, the start-stop control method for the range extender comprises the following steps that the power of a generator is dispersed into N power points from zero to the maximum generated power, and a generated power sequence of the range extender is established; obtaining a lowest fuel consumption power sequence of the range extender under the corresponding power generation power; further obtaining a battery net power sequence, and obtaining an internal resistance consumption power sequence by combining the battery internal resistance and the open-circuit voltage; the total power consumption is obtained through the battery total power sequence and the minimum fuel consumption power sequence, and a range extender starting/stopping command is determined through the total power consumption. The method has the beneficial effects that the total minimum equivalent energy consumption of the range extender and the battery is calculated on line in real time through the vehicle control unit in the vehicle running process to judge whether the engine is started or stopped, complex calibration is not needed, and the good oil saving effect is achieved.
本发明为一种增程器启停控制方法、控制系统及车辆,属于混动车辆控制领域。其技术方案为,一种增程器启停控制方法,包括以下步骤:将发电机功率从零到最大发电功率离散成N个功率点,建立增程器发电功率序;得到增程器相应发电功率下最低燃油消耗功率序列;进一步得到电池净功率序列,结合电池内阻和开路电压得到内阻消耗功率序列;通过电池总功率序列和最低燃油消耗功率序列得到动力总能耗,通过动力总能耗确定增程器启动/停机命令。本发明的有益效果为,通过车辆行驶过程中整车控制器实时在线计算“增程器+电池”总最低等效能耗来判定发动机是否启动/停机,无需进行复杂标定,具有良好的节油效果。
Range extender start-stop control method and control system and vehicle
一种增程器启停控制方法、控制系统及车辆
2024-12-20
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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