The invention discloses a self-adaptive cruise control method and system based on sliding resistance characteristics, and the method comprises the steps: 1, subtracting a current requested acceleration from a ramp acceleration, and obtaining a target acceleration; 2, determining whether the vehicle needs to be accelerated or braked or the vehicle speed needs to be maintained by judging the magnitude relation between the target acceleration and the sliding resistance acceleration generated by the resistance of the vehicle during sliding; the system comprises a target acceleration acquisition module, a sliding resistance acceleration acquisition module, a judgment module and a control module. According to the method, the acceleration and deceleration control of the vehicle is carried out by judging the relationship between the acceleration required to be reached by the current vehicle and the acceleration generated by the sliding force, so that the driving and braking times are greatly reduced, and the driving comfort and economy are improved on the premise of not influencing the vehicle following performance.
一种基于滑行阻力特性的自适应巡航方法及系统,其中,方法包括步骤1:将当前请求加速度与坡道加速度相减,获得目标加速度。步骤2:通过判断目标加速度与车辆在滑行时阻力产生的滑行阻力加速度之间的大小关系,来决定车辆应该进行加速或者制动或者维持车速;系统包括目标加速度获取模块、滑行阻力加速度获取模块、判断模块、控制模块。本发明,通过判断当前车辆需要达到的加速度与滑行力产生的加速度之间的关系,来进行车辆的加速与减速控制,大大减少驱动与制动的次数,在不影响车辆跟车性能的前提下,提高了驾驶的舒适性与经济性。
Self-adaptive cruise control method and system based on sliding resistance characteristics
一种基于滑行阻力特性的自适应巡航方法及系统
2021-04-23
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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