The invention discloses a vehicle sliding control method. The method comprises the steps that in response to the fact that the speed difference between the engine rotating speed and the clutch input shaft rotating speed is larger than a first preset speed difference and the brake pedal opening degree is smaller than a first preset opening degree, the first vehicle speed of a vehicle is obtained; according to the engine idle speed of the vehicle, the gearbox speed ratio and the first vehicle speed, the target vehicle speed of the vehicle is calculated; calculating the actual speed of the vehicle according to the rotating speed of the gearbox output shaft; calculating the speed error of the vehicle; through a preset control algorithm, the control torque of the vehicle is calculated according to the vehicle speed error; and controlling an engine of the vehicle to operate according to the control torque. The speed of the vehicle and the control torque of the engine are corrected according to the rotating speed of a clutch input shaft, the rotating speed of a gearbox output shaft, the rotating speed of the engine and the idling speed of the engine, so that the speed of the vehicle deviates from the idling speed of the engine, and noise and pause caused by disconnection and combination when the speed of the clutch is close to the idling speed of the engine are avoided; and therefore, the vehicle driving comfort of the driver is improved.
本申请公开了一种车辆滑行控制方法:响应于确定发动机转速与离合器输入轴转速的速差大于第一预设速差,且制动踏板开度小于第一预设开度,获取车辆的第一车速;根据车辆的发动机怠速、变速箱速比与第一车速,计算车辆的目标车速;根据变速箱输出轴转速,计算车辆的实际车速;进而计算车辆的车速误差;通过预设控制算法,根据车速误差,计算车辆的控制扭矩;控制车辆的发动机按照控制扭矩运行。即根据离合器输入轴转速、变速箱输出轴转速、发动机转速与发动机怠速修正车辆的车速与发动机的控制扭矩,使得车辆的车速与发动机怠速背离,从而使离合器不会因车速与发动机怠速相近而时断开时结合导致的噪声和顿挫,从而提高驾驶员驾驶车辆的舒适性。
Vehicle sliding control method and related device
一种车辆滑行控制方法和相关装置
23.05.2025
Patent
Elektronische Ressource
Chinesisch
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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