The invention discloses a cruise speed adjusting method and device, and relates to the technical field of vehicle control, and the method comprises the steps: obtaining the target cruise speed of a vehicle; according to the target cruise vehicle speed and the actual cruise vehicle speeds at different time nodes, the vehicle speed deviation change rate in the current time period is calculated; according to the vehicle speed deviation change rate, vehicle speed deviation disappearance time matched with a cruise vehicle speed control system of the vehicle is determined; the actual cruise speed of the vehicle in the next time period corresponding to the current time period is obtained, vehicle speed compensation is conducted on the actual cruise speed in the next time period based on the vehicle speed deviation change rate and the vehicle speed deviation disappearance time, and the compensated vehicle speed is obtained; and based on the compensated vehicle speed and the target cruise vehicle speed, calculating the input deviation of a cruise vehicle speed control system, and performing closed-loop regulation and control on the cruise vehicle speed of the vehicle according to the input deviation of the cruise vehicle speed control system. According to the technical scheme, the response speed of the cruise speed control system can be guaranteed, and the overshoot of the cruise speed can be reduced.
本发明公开了一种巡航车速调节方法及装置,本发明涉及车辆控制技术领域,其中包括:获取车辆的目标巡航车速;根据目标巡航车速,以及不同时间节点处的实际巡航车速,计算当前时段内的车速偏差变化率;根据车速偏差变化率,确定与车辆的巡航车速控制系统相匹配的车速偏差消失时间;获取车辆在当前时段对应的下一时段内的实际巡航车速,并基于车速偏差变化率和车速偏差消失时间,对下一时段内的实际巡航车速进行车速补偿,得到补偿后的车速;基于补偿后的车速和目标巡航车速,计算巡航车速控制系统输入偏差,并根据巡航车速控制系统输入偏差对车辆的巡航车速进行闭环调控。通过应用本申请的技术方案,不仅能够保证巡航车速控制系统的响应速度,还能够减少巡航车速的超调量。
Cruise speed adjusting method and device
巡航车速调节方法及装置
2023-05-26
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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