The invention discloses a variable weight coefficient vehicle following cruise control method considering ramp road conditions, and belongs to the technical field of vehicle control. According to the vehicle following cruise control method, the variable-time-distance ideal distance is adopted, and the adaptability of the vehicle to the complex ramp road condition and the speed change of the front vehicle is improved; according to the method, when the cost function and the constraint condition of the variable weight coefficient vehicle-following cruise control system are determined, the relaxation factor is added, and the solving range of the controlled quantity of the vehicle-following cruise control system is widened; the invention further designs a vehicle following working condition distinguishing method considering the ramp road condition, multiple optimization targets of a vehicle following cruise control strategy are integrated in a weighting form, and a weight coefficient dynamic adjustment rule is established to coordinate the relation among the vehicle fuel economy, the vehicle following safety and the riding comfort. And the multi-target cruise control performance of the vehicle under the ramp following working condition is optimized.
本发明公开了一种考虑坡道路况的变权重系数跟车巡航控制方法,属于车辆控制技术领域。本发明跟车巡航控制方法采用可变时距理想间距,提高了车辆对复杂坡道路况和前车速度变化的适应性;本发明方法在确定变权重系数跟车巡航控制系统的代价函数和约束条件时,添加松弛因子,提高跟车巡航控制系控制量的求解范围;本发明还设计考虑坡道路况的跟车工况辨别方法,以加权的形式对跟车巡航控制策略的多个优化目标进行整合,并建立一种权重系数动态调整规则来协调车辆燃油经济性、跟车安全性和乘坐舒适性之间的关系,优化车辆在坡道跟车工况下的多目标巡航控制性能。
Variable weight coefficient car following cruise control method considering ramp road condition
一种考虑坡道路况的变权重系数跟车巡航控制方法
2022-12-30
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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