A型纯电动客车EHPS助力电机转速控制优化
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摘要
针对A型纯电动客车EHPS助力电机恒定高速运转的问题,本文设计理想转向盘力矩曲线,建立A型纯电动客车的整车模型和EHPS系统模型,推导出理想EHPS助力特性曲线,得到各车速及转向盘转角下的目标电机转速。基于Simulink和AMESIM对模型进行联合仿真,仿真结果表明:助力电机转速控制优化后的EHPS能满足车辆低速转向时的轻便性和高速转向时驾驶员的路感,并改善节能性。
Regarding the problem of the pure electric bus of model A EHPS power motor operating at a constant high speed, an ideal steering wheel torque curve is designed. The vehicle model and the EHPS model are set up. The ideal EHPS assist characteristic curve is deduced, and the target speed of motor under different speed and different steering wheel angle is obtained. The model is simulated based on Simulink and AMESIM. The simulation result shows that after the optimization of EHPS power motor speed control, the EHPS satisfies the portability in low speed steering and the road feeling of driver in high speed steering, and also improves the ability of energy saving.
Regarding the problem of the pure electric bus of model A EHPS power motor operating at a constant high speed, an ideal steering wheel torque curve is designed. The vehicle model and the EHPS model are set up. The ideal EHPS assist characteristic curve is deduced, and the target speed of motor under different speed and different steering wheel angle is obtained. The model is simulated based on Simulink and AMESIM. The simulation result shows that after the optimization of EHPS power motor speed control, the EHPS satisfies the portability in low speed steering and the road feeling of driver in high speed steering, and also improves the ability of energy saving.
引文
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[16]王旭斌.汽车转向阻力矩的分析[J].机电技术,2015(6):132-134.WANG X B. Analysis of vehicle steering resistance moment[J].Mechanical and electrical technology, 2015(6):132-134.
[17]朱佩,张振宇.电动液压助力转向系统的助力特性曲线设计及仿真[J].重庆交通大学学报(自然科学版),2011, 30(4):852-855.ZHUP,ZHANGZY.Designandsimulationofassist characteristic curve of electro-hydraulic power assist steering system[J]. Journal of Chongqing Jiaotong University(Natural science edition), 2011, 30(4):852-855.
[18]王霄峰.汽车底盘设计[M].北京:清华大学出版社,2010.WANG X F. Automotive chassis design[M]. Beijing:Tsinghua University Press, 2010.
[19]赵永刚.城市客车标准化道路试验循环测试[J].汽车实用技术,2018(12):68-69.ZHAO Y G. Urban bus standardized road test cycle test[J].Automobile Practical Technology, 2018(12):68-69.
[2]余志生.汽车理论[M].北京:机械工业出版社,2012.YU Z S. Automobile theory[M]. Beijing:Machinery Industry Press, 2012
[3]韩艾呈.基于电动客车的电动液压助力转向系统电机控制器的研究[D].北京:北京科技大学,2015.HAN A C. Research of electric hydraulic power steering system motor controller on electric passenger car[D]. Beijing:University of Science and Technology Beijing, 2015.
[4]易锃.新能源公交车电控液压助力转向仿真研究[D].成都:西南交通大学,2015.YI Z. Sinulation on electric hydraulic power steering system of new energy bus[D]. Chengdu:Southwest Jiaotong University, 2015.
[5]SU J K, WANG J L. Control strategy and energy consumption analysis of electro-hydraulic power steering system[J].Machinery Design&Manufacture, 2012(1):126-128.
[6]BADAWY A, FEHLING D, WIERTZ A, et al. Development of a new concept of electrically power hydraulic steering[C]. SAE2004 Automotive Dynamics, Stability&Controls Conference and Exhibition, 2004(1):2070.
[7]BERTOLLINI G P, HOGAN R M. Applying driving simulation to quantify steering effort preference as a function of vehicle speed[C].SAE Technical Papers, 1999(1):394.
[8]LIU Y H, JI X W. Matching strategy of electric power steering assistant characters based on the vehicle inherent road feel[J].Proceedings of the Institution of Mechanical Engineering, Part D:Journal of Automobile Engineering, 2011, 225(11):1481-1491.
[9]宗长富,麦莉,王德平,等.基于驾驶模拟器的驾驶员所偏好的转向盘力矩特性研究[J].中国机械工程,2007,18(8):1001-1005.ZONG C F, MAI L, WANG D P, et al. Study on steering effort preference of drivers based on driving simulator[J]. China Mechanical Engineering, 2007, 18(8):1001-1005.
[10]刘照.汽车电动助力转向系统动力学分析与控制方法研究[D].武汉:华中科技大学,2004.LIU Z. Research on dynamic analysis and control method of electric power assisted steering system for vehicle[D]. Wuhan:Huazhong University of Science and Technology, 2004.
[11]张鑫.面向操纵稳定性分析的整车动力学仿真研究[D].沈阳:沈阳工业大学,2014.ZHANG X. Vehicle dynamics simulation research for steering stability analysis[D]. Shenyang:Shenyang University of Technology, 2014.
[12]李松焱,闵永军,王良模,等.轮胎动力学模型的建立与仿真分析[J].南京工程学院学报.2009,7(3):34-38.LI S Y, MIN Y J, WANG L M, et al. Establishment and simulation analysis of tire dynamic model[J]. Journal of Nanjing Institute of Technology, 2009, 7(3):34-38.
[13]龚建伟,姜岩,徐威.无人驾驶车辆模型预测控制[M].北京:北京理工大学出版社,2014.GONG J W, JIANG Y, XU W. Model predictive control of driverless vehicle[M]. Beijing:Beijing Institute of Technology Press, 2014.
[14]闫鹏鹏. A型纯电动客车电动液压助力转向控制系统优化[D].南京:南京林业大学,2017.YAN P P. Optimization of electric hydraulic power steering control system for the pure electric bus of model A[D].Nanjing:Nanjing Forestry University, 2017.
[15]顾勇.适合电动ATV使用的电驱动系统分析[J].林业机械与木工设备,2018,46(10):41-43.GU Y. Analysis of electric drive system suitable for electric ATVs[J]. Forestry Machinery&Woodworking Equipment, 2018,46(10):41-43.
[16]王旭斌.汽车转向阻力矩的分析[J].机电技术,2015(6):132-134.WANG X B. Analysis of vehicle steering resistance moment[J].Mechanical and electrical technology, 2015(6):132-134.
[17]朱佩,张振宇.电动液压助力转向系统的助力特性曲线设计及仿真[J].重庆交通大学学报(自然科学版),2011, 30(4):852-855.ZHUP,ZHANGZY.Designandsimulationofassist characteristic curve of electro-hydraulic power assist steering system[J]. Journal of Chongqing Jiaotong University(Natural science edition), 2011, 30(4):852-855.
[18]王霄峰.汽车底盘设计[M].北京:清华大学出版社,2010.WANG X F. Automotive chassis design[M]. Beijing:Tsinghua University Press, 2010.
[19]赵永刚.城市客车标准化道路试验循环测试[J].汽车实用技术,2018(12):68-69.ZHAO Y G. Urban bus standardized road test cycle test[J].Automobile Practical Technology, 2018(12):68-69.