Design and Simulation of Cam Pressurized CVT

Hao Jianjun; Liu Yunyun; Lan Jiashui; Xiong Feng

doi:10.16578/j.issn.1004.2539.2015.03.019

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Design and Simulation of Cam Pressurized CVT

更新时间：2022-10-20

- Design and Simulation of Cam Pressurized CVT
- Vol. 39, Issue 3, Pages: 70-74(2015)
- 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. 重庆科学技术研究院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2015.03.019
  CLC：
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[1]郝建军,刘云云,兰家水,熊锋.凸轮加压CVT设计与仿真[J].机械传动,2015,39(03):70-74.

Hao Jianjun, Liu Yunyun, Lan Jiashui, et al. Design and Simulation of Cam Pressurized CVT. [J]. 39(3):70-74(2015)
[1]郝建军,刘云云,兰家水,熊锋.凸轮加压CVT设计与仿真[J].机械传动,2015,39(03):70-74. DOI： 10.16578/j.issn.1004.2539.2015.03.019.

Hao Jianjun, Liu Yunyun, Lan Jiashui, et al. Design and Simulation of Cam Pressurized CVT. [J]. 39(3):70-74(2015) DOI： 10.16578/j.issn.1004.2539.2015.03.019.

摘要

针对目前的CVT液压控制系统能量消耗大、控制系统复杂、金属带的轴向偏斜限制变速比和传动能力等问题,设计了一种凸轮加压式CVT液压控制系统。该系统是由凸轮自动加压装置和闭式液压控制系统组成,凸轮加压装置自动地提供全部的夹紧力,液压控制系统提供辅助夹紧并控制传动比变化。设计的液压控制系统结构简单,省去了昂贵的换向阀,且减少了溢流损失,因此具有组成零部件少、节能环保、成本低廉的优点。介绍了系统的结构设计及工作原理,采用Matlab/Simulink软件对其进行仿真分析。仿真结果表明,这种凸轮加压式CVT液压控制系统具有动态响应快、稳定性能好等显著优点。

Abstract

Aiming at the problems of the current CVT actuated by hydraulic control system,such as high energy consumption,complicated control systems,speed ratio and transmission ability being limited by metal belt axial deflection,a new designed cam pressurized CVT hydraulic system is proposed,which is composed of cam automatic pressurized device and closed hydraulic system.The cam pressurized device automatically provides most of the clamping force,the closed hydraulic control system provides the auxiliary clamping force and changes the speed ratio.The new designed hydraulic control system with simple-structure can leave out expensive reversing values and reduce overflow loss,therefore it has advantages of less component parts,energy conservation,environmental protection and low cost.The structure design and working principle of the CVT system are introduced,and the simulation analysis is carried out by using the Matlab/Simulink software.The simulation results show that the cam pressurized CVT hydraulic control system has the significant advantages of fast dynamic response,stable performance and so on.

关键词

CVT凸轮加压仿真分析动态特性

Keywords

CVTCam pressurizedSimulation analysisDynamic characteristic

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