商用车全车质量EPS系统助力特性仿真分析
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摘要
为提高载荷变化较大的工况下商用车的转向性能,本文中提出了一种商用车全车质量助力特性电动助力转向系统(electric power steering, EPS),对其助力特性和控制策略进行了研究,并通过TruckSim与Simulink联合仿真,对比了全车质量助力特性EPS系统、单一车质量助力特性EPS系统和无EPS系统的性能。结果表明:全车质量助力特性EPS系统可使商用车具有良好的转向轻便性,改善了操纵稳定性,并且减小了车质量变化对转向性能的影响,从而使驾驶员获得更清晰的路感。
In order to improve the steering performance of commercial vehicles with big change of load, the electric power steering(EPS) system with full range vehicle mass power assisting characteristics is proposed. Its assisting characteristics and control strategy are studied. Through co-simulation of TruckSim and Simulink, the influence of full range vehicle mass EPS system, traditional single mass EPS system and EPS-free system on vehicle performance are compared. Simulation results show that the EPS system with full range vehicle mass assisting characteristics can provide better steering lightness and handling stability for commercial vehicles. It can reduce the impact of vehicle mass on the steering performance, so as to bring drivers clearer sense of road.
In order to improve the steering performance of commercial vehicles with big change of load, the electric power steering(EPS) system with full range vehicle mass power assisting characteristics is proposed. Its assisting characteristics and control strategy are studied. Through co-simulation of TruckSim and Simulink, the influence of full range vehicle mass EPS system, traditional single mass EPS system and EPS-free system on vehicle performance are compared. Simulation results show that the EPS system with full range vehicle mass assisting characteristics can provide better steering lightness and handling stability for commercial vehicles. It can reduce the impact of vehicle mass on the steering performance, so as to bring drivers clearer sense of road.
引文
[1] 张硕,余强,闫光辉,等.商用车EPS助力控制策略的研究[J].汽车工程,2013,35(9):812-816.
[2] 申荣卫.电动客车电动助力转向系统开发与试验技术研究[D].北京:北京理工大学,2006.
[3] ZHAO X,SHI X,CHEN J,et al.Dynamic correction of the steering-characteristic curve and application to an EPS control system[J].International Journal of Automotive Technology,2011,12(2):243-249.
[4] ZHAO X P,XIN L,JIE C,et al.Parametric design and application of steering characteristic curve in control for electric power steering[J].Mechatronics,2009,19(6):905-911.
[5] 何清华,何智成,方华,等.某微型客车EPS系统车速感应系数设计与评价研究[J].机械科学与技术,2014,33(3):404-408.
[6] 熊亮,刘和平,彭东林.无转矩传感器汽车电动助力转向系统的控制策略[J].汽车工程,2013,35(8):711-715.
[7] 周鑫.基于Adams与Matlab的汽车电动助力转向系统的联合仿真[D].武汉:武汉理工大学,2009.
[8] 田正新.汽车电动助力转向控制策略的研究及联合仿真分析[D].长沙:湖南大学,2012.
[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.
[10] 中国汽车工业总公司.汽车操纵稳定性指标限值与评价方法:QC/T 480—1999[S].1999.
[11] 徐鹏.基于Adams与Matlab的双电机EPS联合仿真[D].西安:长安大学,2017.
[12] LI Y H,XU P,HOU S.Study on a dual-motor driving electric power steering system for commercial vehicle[C].ICIEA2016,2016:1949-1954.
[13] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.汽车操纵稳定性试验方法:GB/T 6323—2014[S].北京:中国标准出版社,2014.
[14] ISO 3888—1:1999(E),Double lane-change[S].ISO (the International Organization for Standardization),1999.
[15] 郑宏宇,宗长富,何磊,等.基于电动助力转向的线控转向汽车路感反馈控制[J].吉林大学学报:工学版,2013,43(1):1-5.
[16] ISO 13674—1.Road vehicle:test method for the quantification of on-center handling[S].2010.
[17] 管欣,姬鹏,詹军.转向系统特性参数对中心转向区车辆性能的影响[J].汽车技术,2008(11):1-4.
[2] 申荣卫.电动客车电动助力转向系统开发与试验技术研究[D].北京:北京理工大学,2006.
[3] ZHAO X,SHI X,CHEN J,et al.Dynamic correction of the steering-characteristic curve and application to an EPS control system[J].International Journal of Automotive Technology,2011,12(2):243-249.
[4] ZHAO X P,XIN L,JIE C,et al.Parametric design and application of steering characteristic curve in control for electric power steering[J].Mechatronics,2009,19(6):905-911.
[5] 何清华,何智成,方华,等.某微型客车EPS系统车速感应系数设计与评价研究[J].机械科学与技术,2014,33(3):404-408.
[6] 熊亮,刘和平,彭东林.无转矩传感器汽车电动助力转向系统的控制策略[J].汽车工程,2013,35(8):711-715.
[7] 周鑫.基于Adams与Matlab的汽车电动助力转向系统的联合仿真[D].武汉:武汉理工大学,2009.
[8] 田正新.汽车电动助力转向控制策略的研究及联合仿真分析[D].长沙:湖南大学,2012.
[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.
[10] 中国汽车工业总公司.汽车操纵稳定性指标限值与评价方法:QC/T 480—1999[S].1999.
[11] 徐鹏.基于Adams与Matlab的双电机EPS联合仿真[D].西安:长安大学,2017.
[12] LI Y H,XU P,HOU S.Study on a dual-motor driving electric power steering system for commercial vehicle[C].ICIEA2016,2016:1949-1954.
[13] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.汽车操纵稳定性试验方法:GB/T 6323—2014[S].北京:中国标准出版社,2014.
[14] ISO 3888—1:1999(E),Double lane-change[S].ISO (the International Organization for Standardization),1999.
[15] 郑宏宇,宗长富,何磊,等.基于电动助力转向的线控转向汽车路感反馈控制[J].吉林大学学报:工学版,2013,43(1):1-5.
[16] ISO 13674—1.Road vehicle:test method for the quantification of on-center handling[S].2010.
[17] 管欣,姬鹏,詹军.转向系统特性参数对中心转向区车辆性能的影响[J].汽车技术,2008(11):1-4.