The invention provides a pure electric vehicle single pedal control method, device and system, according to the depth of a driver stepping on a driving pedal, based on the current state of the driving pedal and the opening and closing angle interval corresponding to the driving pedal, the driving intention corresponding to the current interval is decided in a dynamic mixed interval mode; after driving intention recognition is completed, torque output in three different states of driving, sliding and braking is controlled according to the driving intention; and when it is recognized that the driver has the braking requirement, the opening degree interval of the corresponding stage is determined according to the vehicle speed change or the opening degree change in the driving pedal loosening process, and the braking torque of the corresponding size is output according to the required deceleration. Compared with a common single-pedal system, all-working-condition single-pedal driving control can be achieved, braking comfort is guaranteed, and meanwhile braking energy recovery of the whole vehicle with the maximum strength is achieved; energy is saved, meanwhile, the frequency of switching between an accelerator pedal and a brake pedal by a driver is reduced, and the driving burden of the driver is relieved.
本发明提供了一种纯电动汽车单踏板控制方法、装置和系统,根据驾驶员踩驱动踏板的深度,基于驱动踏板当前所处状态及驱动踏板对应的开合角度区间,采用动态的混合区间的方式决策出当前区间对应的驾驶意图;完成驾驶意图识别后根据驾驶意图控制驱动、滑行和制动三种不同状态下的扭矩的输出;当识别到驾驶员有制动需求时,根据车速变化或驱动踏板松开过程中开度变化确定对应阶段的开度区间,根据需求减速度输出对应大小的制动扭矩。相较普通单踏板系统而言,本发明能实现全工况单踏板驾驶控制,在保证制动舒适性的同时让整车达到最大强度的制动能量回收;在节能的同时降低了驾驶员在加速踏板和制动踏板来回切换的频率,减轻驾驶员驾驶负担。
Pure electric vehicle single pedal control method, device and system
纯电动汽车单踏板控制方法、装置和系统
2024-06-18
Patent
Electronic Resource
Chinese
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