金属带式CVT电液控制系统硬件在环仿真研究  

A Study on HIL Simulation of Metal Belt CVT Electro-Hydraulic Control System

作　　者：罗勇[1,2,3] 韦永恒 罗建文 李沛然 祁朋伟 崔环宇 LUO Yong;WEI Yongheng;LUO Jianwen;LI Peiran;QI Pengwei;CUI Huanyu(Key Laboratory of Advanced Manufacturing Technology for Automobile Parts,Chongqing University of Technology,Chongqing 400054,China;State Key Laboratory of Vehicle NVH and Safety Technology,China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 400054,China;Chongqing Tsingshan Industrial Co.,Ltd.,Chongqing 400054,China)

机构地区：[1]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054 [2]中国汽车工程研究院股份有限公司汽车噪声振动和安全技术国家重点实验室,重庆400054 [3]重庆青山工业有限责任公司,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2020年第7期27-34,56,共9页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51305475);汽车噪声振动和安全技术国家重点实验室2017年度开放基金项目(NVHSKL-201702);重庆市教委科学技术研究项目(KJQN201801143);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0308);重庆理工大学车辆学院科研支撑项目(CL2019-16)。

摘　　要：CVT由于具有结构紧凑、平顺性好、优良燃油经济性等特点,在汽车传动系统研究领域应用广泛。传统离线仿真受数学建模等局限性,难以保证仿真结果的可信度和精度。硬件在环仿真测试能够模拟汽车在实际中的各种极限工况,重复性好,同时可以在测试过程中修改模型方案和快速进行验证,极大程度地降低控制系统开发过程中的成本,缩短开发周期,提高模型的准确程度。基于NI-PXI硬件在环测试系统与NI公司提供的VeriStand软件搭建金属带式CVT硬件在环测试平台,同时利用ECM控制单元和Woodward公司提供的MotoHawk、MotoTune软件下载控制算法模型,对CVT电液控制系统模型与控制算法进行联合仿真完成实时仿真验证。测试结果证明设计的CVT硬件在环仿真系统的有效性与准确性良好。CVT has the characteristics of compact structure,good smoothness and excellent fuel economy,it is widely used in the research field of automotive transmission systems. Traditional offline simulation is limited by mathematical modeling,and it is difficult to guarantee the credibility and accuracy of the simulation results. The hardware-in-the-loop simulation test can simulate various extreme conditions of the car in practice,and has good repeatability. At the same time,it can modify the model plan and quickly verify during the test process,greatly reducing the cost and shortening of the control system development process,improving the accuracy of the model. Based on the NI-PXI hardware-in-the-loop test system and the VeriStand software provided by National Instruments,this paper builds a metal-belt CVT hardware-in-the-loop test platform. At the same time,the ECM control unit and Woodward’s MotoHawk and MotoTune software download control algorithm models are used to control the CVT. The liquid control system model and the control algorithm are jointly simulated to complete the real-time simulation verification. The test results prove that the validity and accuracy of the CVT hardware-in-the-loop simulation system designed is good in this paper.

关 键 词：无级变速器 电液控制 联合仿真 硬件在环 

分 类 号：TH132[机械工程—机械制造及自动化]