二维码(扫一下试试看!) | 汽车弯道行驶经济性车速优化方法 | Vehicle Optimal Speed Profile When Running on Curved Roads | 投稿时间:2017-01-20 | DOI:10.15918/j.tbit1001-0645.2018.05.009 | 中文关键词:经济性车速油耗模型弯道行驶动态规划 | English Keywords:eco-drivingfuel consumption modelcurved roadsdynamic programming | 基金项目:国家自然科学基金项目资助(51375053) | | 摘要点击次数:1001 | 全文下载次数:622 | 中文摘要: | 道路曲率影响汽车的燃油经济性.以汽车弯道行驶燃油经济性为目标,提出了基于弯道曲率信息的经济性车速优化方法.通过建立BIT-TFCM瞬时燃油消耗模型和车辆动力学模型,得到单一曲率圆周道路下的稳态经济性车速.利用动态规划算法求得汽车驶入和驶离弯道两种工况下的经济性车速轨迹.Matlab/Simulink与CarSim联合仿真结果表明,与典型驾驶员弯道行驶模式相比,该算法可节油5.69%~15.91%.该技术可以明显提高传统汽车弯道行驶燃油经济性,也可为无人驾驶车辆弯道速度控制提供决策依据. | English Summary: | To explore the influence of the factor of the horizontal curvature on fuel economy, a vehicle eco-speed optimization algorithm based on the information of road curvature was developed. Firstly, with the aid of the establishment of the BIT-TFCM instantaneous fuel consumption model and vehicle dynamics model, the steady-state optimal speeds corresponding to various circular curves with different radii were obtained. When entering or departing a curve, the optimal speed profile can be calculated with the dynamic programming algorithm. The fuel consumption can be reduced by 5.69%~15.91% with this algorithm compared with typical driving model using the co-simulation of Matlab/Simulink and CarSim. This technique can obviously improve the vehicle fuel economy when running on curved roads, and can provide decision-making for speed control of unmanned vehicles. | 查看全文查看/发表评论下载PDF阅读器 | |
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