基于发动机反馈协调控制的拖拉机动力换挡品质分析
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摘要
拖拉机动力换挡变速箱通过控制多组离合器之间的转矩以实现换挡动力不中断。基于拖拉机整个动力流传递方向,对其中的动力换挡模块进行建模。对参与换挡的两对离合器分为3种状态,建立动力学方程,分阶段求出车辆加速度。基于MATLAB/Simulink平台建立仿真模型,提出基于发动机反馈协调控制的动力换挡策略,仿真结果显示,该策略能够有效减小速度的损失和减小车辆冲击度。
Tractor power shift transmission controls the torque between the clutches in order to achieve shift power without interruption.This paper models the power shift component based on direction of the tractor entire power transmission. The two pairs of clutches involved in the shift are divided into three states. Establish the dynamic equations, and calculate vehicle acceleration in stages. Based on the MATLAB/Simulink, establish simulation model, and a power shift strategy is proposed based on coordinated control of engine feedback.The simulation results show that this strategy can effectively reduce speed loss and reduce vehicle jerk.
Tractor power shift transmission controls the torque between the clutches in order to achieve shift power without interruption.This paper models the power shift component based on direction of the tractor entire power transmission. The two pairs of clutches involved in the shift are divided into three states. Establish the dynamic equations, and calculate vehicle acceleration in stages. Based on the MATLAB/Simulink, establish simulation model, and a power shift strategy is proposed based on coordinated control of engine feedback.The simulation results show that this strategy can effectively reduce speed loss and reduce vehicle jerk.
引文
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[4]高辉松,朱思洪,贺亮,等.拖拉机动力换挡变速箱和无级变速箱发展现状与趋势[J].机械传动,2012,36(8):119-123.
[5]孟姣,宋艳青.浅析动力换挡自动变速器在拖拉机上的应用[J].农业与技术,2015,35(3):52-53.
[6]赵高见.装载机变速箱电控操纵系统研究[D].合肥:合肥工业大学,2010.
[7]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,2017,41(9):51-57,75.
[8]邹宏,段剑锐,姚进.工程车辆传动系统换挡冲击度分析与仿真[J].机械传动,2017,41(7):142-148.
[9]刘振军,董小洪,秦大同,等.双离合器自动变速换挡品质分析与控制[J].重庆大学学报:自然科学版,2010,33(5):29-34.
[2]李闪.车辆动力换挡与换挡品质控制分析[J].科学之友:B版,2008(6):28-30.
[3]刘振军,董小洪,秦大同,等.双离合器自动变速换挡品质分析与控制[J].重庆大学学报:自然科学版,2010,33(5):29-34.
[4]高辉松,朱思洪,贺亮,等.拖拉机动力换挡变速箱和无级变速箱发展现状与趋势[J].机械传动,2012,36(8):119-123.
[5]孟姣,宋艳青.浅析动力换挡自动变速器在拖拉机上的应用[J].农业与技术,2015,35(3):52-53.
[6]赵高见.装载机变速箱电控操纵系统研究[D].合肥:合肥工业大学,2010.
[7]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,2017,41(9):51-57,75.
[8]邹宏,段剑锐,姚进.工程车辆传动系统换挡冲击度分析与仿真[J].机械传动,2017,41(7):142-148.
[9]刘振军,董小洪,秦大同,等.双离合器自动变速换挡品质分析与控制[J].重庆大学学报:自然科学版,2010,33(5):29-34.