The invention relates to a pure electric vehicle hill starting control strategy considering a driving style. The control strategy comprises the steps that S1 a driver steps on a brake pedal, simultaneously operates and engages a gear D, engages a gear 2 transmission into a gear 1, and determines a starting correction coefficient according to the driving style when the vehicle runs last time; S2 when it is detected that the stroke of the brake pedal starts to be decreased, a driving motor starts with the maximum driving force; S3 when it is detected that the rotating speed of the driving motor is larger than 0, the gradient value is calculated, and meanwhile the target driving force of the driving motor is calculated and adjusted; S4 when it is detected that the travel of the brake pedal becomes zero, the target driving force of the driving motor is recalculated and adjusted; and S5 whether the stroke of an accelerator pedal is 0 or not is detected, and if not, the target driving force of the driving motor is calculated according to the opening degree of the accelerator pedal and the target driving force is adjusted. The starting control strategy is more intelligent, the starting requirements of drivers of different driving styles are met, and the hill starting driving force requirements of different gradients are met.
本发明涉及一种考虑驾驶风格的纯电动汽车坡道起步控制策略,包括以下步骤:S1:驾驶员踩住制动踏板,同时操作挂入D挡,2挡变速器挂入1挡,并根据上一次汽车行驶时的驾驶风格确定起步修正系数;S2:检测到制动踏板行程开始变小,驱动电机以最大驱动力起步;S3:检测到驱动电机转速大于0,计算坡度值,同时计算驱动电机目标驱动力并进行调整;S4:检测到制动踏板行程变为0,重新计算驱动电机目标驱动力并进行调整;S5:检测加速踏板行程是否为0,若不为0,根据加速踏板开度计算驱动电机目标驱动力并进行调整。使得起步控制策略更加智能化,满足不同驾驶风格的驾驶员起步需求,满足不同坡度的坡道起步驱动力需求。
Pure electric vehicle hill starting control strategy considering driving style
一种考虑驾驶风格的纯电动汽车坡道起步控制策略
2021-07-16
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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