The invention discloses a large ramp constant vehicle speed control method based on a cruise control system. Under the condition of cruise control, the current vehicle speed and the road gradient aredetected in real time, if the vehicle speed exceeds an error allowable value and lasts for a certain time and the gradient exceeds a set gradient, a cooperative working mode is cooperatively adopted to work to maintain the vehicle speed constant, and otherwise, a normal working mode is adopted to maintain the vehicle speed constant. According to the method, the control process of the cruise control system execution end on the vehicle speed is optimized, ESC is creatively introduced to intervene in control over the vehicle speed in a ramp scene, and the problem that the cruise control of the cruise control system exceeds the set vehicle speed in a ramp or other extreme scenes can be avoided; and the risk that the vehicle cannot keep constant speed or even exceeds the speed limit when running on a large ramp is avoided, and the safety of a driver is guaranteed.
本发明公开了一种基于定速巡航系统的大坡道恒定车速控制方法。它在定速巡航条件下,实时检测当前车速及道路坡度,若车速超过误差允许值并持续一定时间且坡度超过设定坡度,则协采用协同工作模式工作维持车速恒定,否则采用正常工作模式维持车速恒定。本发明优化了定速巡航系统执行端对车速的控制流程,创造性的引入ESC介入对坡道场景对车速的控制,能够避免定速巡航系统在坡道或其他极端场景下定速巡航超过设置车速问题;杜绝了车辆发在大坡道上无法保持恒速甚至超过限速的风险,保证了驾驶员的安全。
Large ramp constant vehicle speed control method based on cruise control system
一种基于定速巡航系统的大坡道恒定车速控制方法
2020-08-21
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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