Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission

Zou Xihong; Gou Xun; Zheng Xiaomei; Zhao Jun

doi:10.16578/j.issn.1004.2539.2017.06.007

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Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission

更新时间：2022-10-20

- Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission
- Vol. 41, Issue 6, Pages: 36-41(2017)
- 作者机构：
  
  1. 重庆理工大学汽车零部件制造及检测技术教育部重点实验室
  2. 重庆大学机械传动国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2017.06.007
  CLC：
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[1]邹喜红,苟迅,征小梅,赵军.自动变速器动态负载模拟虚拟试验方法研究[J].机械传动,2017,41(06):36-41.

Zou Xihong, Gou Xun, Zheng Xiaomei, et al. Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission. [J]. 41(6):36-41(2017)
[1]邹喜红,苟迅,征小梅,赵军.自动变速器动态负载模拟虚拟试验方法研究[J].机械传动,2017,41(06):36-41. DOI： 10.16578/j.issn.1004.2539.2017.06.007.

Zou Xihong, Gou Xun, Zheng Xiaomei, et al. Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission. [J]. 41(6):36-41(2017) DOI： 10.16578/j.issn.1004.2539.2017.06.007.

摘要

动态负载模拟是室内台架试验关键技术,也是考核自动变速器综合性能重要手段。研究针对EM-CVT负载模拟方法,采用MATLAB/Simulink建立自动变速器动态负载模拟系统数学模型,结合转速跟踪控制算法,实现EM-CVT动态负载模拟。研究参考部分NEDC城市循环工况,进行了虚拟试验,采用EPA性能指标对系统性能进行了评估,结果表明系统能够平稳运行,电机转速、转矩能够快速响应模型指令,电机平稳运行时转速相对误差不超过1%,转矩最大相对误差为8%,转速、转矩指令值与电机响应值估量标准差SE分别为4.3 r/min、17.7 N·m,可决系数r,2,分别为0.99、0.91,均优于EPA相关性能指标。

Abstract

The dynamic load simulation is a key technology of indoor bench test and an important assessment of automatic transmission performances. In order to achieve EM-CVT dynamic load simulation,the dynamic load simulation method is researched by using MATLAB/Simulink to establish the mathematical model of automatic transmission dynamic load simulation system and combining with the speed tracking control algorithm.The virtual test is carried out,which refers to a section of the NEDC city cycle,the EPA performance index is introduced to evaluate the system performance. The results show that the motors can response to speed and torque instruction of model rapidly,the system can run smoothly,the maximum relative errors of rotational speed and torque are 1% and 8%,the standard errors of estimate（ SE） and the coefficients of determination（ r,2,） of speed and torque are 4. 3 r/min,17. 7 N·m and 0. 99,0. 91,it has a better performance than EPA performance index.

关键词

动态负载模拟虚拟试验EM-CVT自动变速器系统仿真

Keywords

Dynamic load simulationVirtual testEM-CVTAutomatic transmissionSystem simulation

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