The invention discloses a longitudinal vehicle speed control method, device and system and a storage medium, and is applied to the technical field of vehicles, and the method comprises the steps: obtaining a historical driving mode and a historical acceleration of a vehicle during driving in a recent time period, and obtaining an expected longitudinal vehicle speed and a current longitudinal vehicle speed; predicting a target driving mode at the next moment through the obtained historical driving mode and historical acceleration; and determining a target control quantity corresponding to the expected longitudinal vehicle speed and the current longitudinal vehicle speed based on a mapping relationship between the longitudinal vehicle speed and the control quantity in the target driving mode, and adjusting the longitudinal speed of the vehicle according to the target control quantity. Due to the fact that the corresponding relation between the longitudinal speed and the control quantityset in different driving modes is different, the adjustment of the longitudinal vehicle speed conforms to the motion characteristics of the vehicle in the corresponding driving mode, for example, theadjustment of the longitudinal vehicle speed conforms to the current acceleration change, the situation of sudden acceleration change is avoided, and the safety and stability of automatic driving areimproved.
本申请公开了一种纵向车速的控制方法、装置、系统及存储介质,应用于车辆技术领域,该方法包括:获取车辆在最近时间段内行驶时的历史行驶模式与历史加速度,并获取期望纵向车速与当前纵向车速;通过获取得到的历史行驶模式与历史加速度来预测下一个时刻的目标行驶模式;基于目标行驶模式下纵向车速与控制量之间的映射关系,确定出期望纵向车速与当前纵向车速对应的目标控制量,根据目标控制量调节车辆的纵向速度。由于不同行驶模式下设置的纵向速度与控制量之间的对应关系不同,使纵向车速的调节与对应的行驶模式下车辆的运动特性相符,比如,纵向车速的调节符合当前加速度变化,避免了加速度突变的情况,提高了自动驾驶的安全性和稳定性。
Longitudinal vehicle speed control method, device and system and storage medium
纵向车速的控制方法、装置、系统及存储介质
2020-06-05
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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