机械式自动变速器换挡智能控制系统设计
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摘要
目前大部分机械式自动变速器换挡智能控制系统在设计时没有考虑换挡品质,为此设计了一种新的机械式自动变速器换挡智能控制系统,对自动变速器换挡扭矩相阶段与惯性相阶段实现智能控制。在扭矩相阶段,为防止换挡过程中动力中断,由接合元件智能控制升挡与降挡;在惯性相阶段,获得二次型性能指标后对黎卡提矩阵微分方程进行求解,获得扭矩相离合器摩擦力矩改变率的最优轨迹,利用力矩与离合器压力的换算关系,获得扭矩相离合器压力最佳控制轨迹。实验结果表明,所设计系统控制效果好。
At present,most of the mechanical automatic transmission shift intelligent control system is designed without considering the shift quality.For this purpose,a new mechanical automatic transmission shift intelligent control system is designed to realize intelligent control of the torque phase and the inertia phase.In the torque phase,upshifting and downshifting are intelligently controlled by the engaging elements to prevent power interruption during shifting.In the inertia phase,after obtaining the quadratic performance index,the Riccati matrix differential equation is solved to obtain the optimal trajectory of the torque phase change rate of the torque phase clutch.The torque phase clutch is obtained by the conversion relationship between the torque and the clutch pressure.The best control trajectory of pressure.The experimental results show that the designed system has good control effect.
At present,most of the mechanical automatic transmission shift intelligent control system is designed without considering the shift quality.For this purpose,a new mechanical automatic transmission shift intelligent control system is designed to realize intelligent control of the torque phase and the inertia phase.In the torque phase,upshifting and downshifting are intelligently controlled by the engaging elements to prevent power interruption during shifting.In the inertia phase,after obtaining the quadratic performance index,the Riccati matrix differential equation is solved to obtain the optimal trajectory of the torque phase change rate of the torque phase clutch.The torque phase clutch is obtained by the conversion relationship between the torque and the clutch pressure.The best control trajectory of pressure.The experimental results show that the designed system has good control effect.
引文
[1]方圣楠,宋健,宋海军,等.基于最优控制理论的电动汽车机械式自动变速器换挡控制[J].清华大学学报(自然科学版),2016(6):580-586.
[2]陈运星,马强.无动力中断电控机械式自动变速器换挡特性研究[J].农业装备与车辆工程,2016,54(5):1-7.
[3]蔡宦麟,吴光强,陈洁.液力机械式自动变速器换挡控制及实车验证[J].机电一体化,2017,23(2):21-26.
[4]郑红梅,龚国华,蒋梦鸽,等.两挡机械式自动变速器挡位间距检测系统的设计[J].阜阳职业技术学院学报,2016,27(1):1-5.
[5]NGUYEN Truong Sinh,宋健,方圣楠,等.电动汽车动力保持型机械式自动两挡变速器仿真与试验[J].清华大学学报(自然科学版),2017,57(10):1106-1113.
[6]王尔烈,陈慧岩,顾宏弢,等.重型行星式自动变速器换挡过程控制策略[J].北京理工大学学报,2017,37(5):485-490.
[7]周英超,常思勤,李波.电控机械式自动变速器时序重叠换挡系统设计与研究[J].中国机械工程,2018,29(11):1289-1296.
[8]成岳华,李翔晟,罗俊勇.汽车自动变速器换挡规律优化设计[J].计算机仿真,2016,33(4):227-231.
[9]沈文臣,胡宇辉,席军强,等.混合动力车辆自动机械变速器换挡过程分析与控制[J].汽车工程,2016,38(3):337-343.
[10]马文杰,张晓聪,闫正军,等.车用自动变速器多工况换挡规律设计与动态修正[J].机械传动,2017(2):112-117.
[11]李超,李天思,刘奇芳,等.基于数据驱动的双离合器式自动变速器换挡过程控制[J].系统科学与数学,2016,36(8):1081-1093.
[12]赵立军,张艳芬,刘清河.纯电动商用车机械式自动变速器综合换挡策略[J].西安交通大学学报,2015,49(6):46-52.
[13]张孟霞,郭春晓.黎卡提方程的解法[J].教育教学论坛,2017(45):164-165.
[14]常佳男,孙保群,姜明亮,等.双离合自动变速器换挡冲击度分析[J].机械传动,2017(9):51-57.
[2]陈运星,马强.无动力中断电控机械式自动变速器换挡特性研究[J].农业装备与车辆工程,2016,54(5):1-7.
[3]蔡宦麟,吴光强,陈洁.液力机械式自动变速器换挡控制及实车验证[J].机电一体化,2017,23(2):21-26.
[4]郑红梅,龚国华,蒋梦鸽,等.两挡机械式自动变速器挡位间距检测系统的设计[J].阜阳职业技术学院学报,2016,27(1):1-5.
[5]NGUYEN Truong Sinh,宋健,方圣楠,等.电动汽车动力保持型机械式自动两挡变速器仿真与试验[J].清华大学学报(自然科学版),2017,57(10):1106-1113.
[6]王尔烈,陈慧岩,顾宏弢,等.重型行星式自动变速器换挡过程控制策略[J].北京理工大学学报,2017,37(5):485-490.
[7]周英超,常思勤,李波.电控机械式自动变速器时序重叠换挡系统设计与研究[J].中国机械工程,2018,29(11):1289-1296.
[8]成岳华,李翔晟,罗俊勇.汽车自动变速器换挡规律优化设计[J].计算机仿真,2016,33(4):227-231.
[9]沈文臣,胡宇辉,席军强,等.混合动力车辆自动机械变速器换挡过程分析与控制[J].汽车工程,2016,38(3):337-343.
[10]马文杰,张晓聪,闫正军,等.车用自动变速器多工况换挡规律设计与动态修正[J].机械传动,2017(2):112-117.
[11]李超,李天思,刘奇芳,等.基于数据驱动的双离合器式自动变速器换挡过程控制[J].系统科学与数学,2016,36(8):1081-1093.
[12]赵立军,张艳芬,刘清河.纯电动商用车机械式自动变速器综合换挡策略[J].西安交通大学学报,2015,49(6):46-52.
[13]张孟霞,郭春晓.黎卡提方程的解法[J].教育教学论坛,2017(45):164-165.
[14]常佳男,孙保群,姜明亮,等.双离合自动变速器换挡冲击度分析[J].机械传动,2017(9):51-57.