The invention discloses a crawling method and device of an electric vehicle and the vehicle. The method comprises the steps that the current working condition of the electric vehicle is detected; when it is detected that the current working condition is the crawling working condition, the actual braking intention of a user is obtained; and target braking force and/or target driving force are/is determined according to the actual braking intention of the user, the current crawling speed of the electric vehicle is calculated according to the target braking force or the target driving force, and the electric vehicle is controlled to run at the crawling speed. Therefore, when the requirement for the crawling speed is low, the speed is controlled by controlling the rotating speed of the electric driving system, extra energy loss caused by simultaneous intervention of driving and braking is avoided, the endurance mileage of the vehicle is increased, the driving feeling of members is optimized, and the problems of energy waste and driving discomfort due to the fact that a user needs to loosen and step on a brake pedal repeatedly when stopping at a low speed in a congested road section are overcome.
本申请公开了一种电动汽车的蠕行方法、装置及车辆,其中,方法包括:检测电动汽车的当前工况;在检测到当前工况为蠕行工况时,获取用户的实际制动意图;根据用户的实际制动意图确定目标制动力和/或目标驱动力,并根据目标制动力或目标驱动力计算电动汽车的当前蠕行车速,以控制电动汽车以蠕行车速行驶。由此,在蠕行车速需求较低时,通过控制电驱动系统的转速来控制车速,避免了驱动和制动同时介入造成的额外能量损失,增加了车辆的续航里程,优化了成员的驾驶感受,解决了用户在拥堵路段需要低速停车时,需要反复松、踩制动踏板,导致能源的浪费和驾驶的不适感的问题。
Crawling method and device of electric vehicle and vehicle
电动汽车的蠕行方法、装置及车辆
2021-06-01
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 |