The invention belongs to the technical field of hybrid vehicle engine control, and particularly relates to an engine torque target calculation method for a hybrid vehicle under a series working condition, and the method comprises the steps: obtaining a driving mode of a vehicle and an actual rotating speed of an engine; judging whether the driving mode is a series connection mode or not, and if yes, judging whether the vehicle is within a threshold range of a measuring point or not according to the actual rotating speed of the engine; when the actual rotating speed of the engine is within the threshold range of the measuring point, the engine outputs an engine torque value of a torque target economic line fixed-point control strategy; and when the actual rotating speed of the engine is not within the threshold range of the measuring point, the engine outputs an engine torque value of a torque target optimization algorithm control strategy. According to the method, the defects of a fixed point strategy can be overcome, the target torque path of a non-test point is planned by using an optimization algorithm, and then on the premise that the oil consumption effect is guaranteed, the dependence on experimental determination is reduced as much as possible, and the ideal oil consumption effect is obtained.
本发明属于混动汽车发动机控制技术领域,尤其一种用于混动汽车串联工况下的发动机扭矩目标计算方法,所述方法包括:获取车辆的驱动模式和发动机实际转速;判断所述驱动模式是否为串联模式,若是,根据所述发动机实际转速判断车辆是否处于测定点阈值范围内;当所述发动机实际转速在测定点阈值范围内,则发动机输出扭矩目标经济线定点控制策略的发动机扭矩值;当所述发动机实际转速不在测定点阈值范围内,则发动机输出扭矩目标优化算法控制策略的发动机扭矩值。本发明能够解决定点策略存在的不足,使用优化算法对非测试点的目标扭矩路径进行规划,进而在保证油耗效果的前提下,尽可能降低对于实验测定的依赖,获得理想的油耗效果。
Target calculation method and system for engine torque under series working condition of hybrid electric vehicle
用于混动汽车串联工况下的发动机扭矩目标计算方法及系统
2025-02-21
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 |
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