机电控制无级变速器执行机构动态响应特性仿真研究

摘要/Abstract

摘要： 为研究夹紧力可调的机电控制无级变速器（EMCVT）电控电动执行机构的可靠性，及其速比和从动带轮夹紧力动态响应的影响因素，采用MATLAB/Simulink构建了EMCVT执行机构的动力学模型，设计了针对EMCVT电控电动执行机构的速比和夹紧力闭环控制器。对EMCVT输入转矩突变和目标速比突变两种工况进行了仿真分析，仿真结果表明：速比和从动带轮夹紧力动态响应的超调量和调节时间满足CVT的使用要求，从动带轮夹紧力响应时间小于1s，速比变化率可以达到2；EMCVT速比和从动带轮夹紧力动态响应的主要影响因素是执行电动机的负载和转动方向。

关键词: 机电控制无级变速器, 动态特性, 速比, 夹紧力

Abstract: In order to study the reliability of the EMCVT and the influence factors of the response characteristics of the EMCVT speed ratios and driven pulley clamping forces, a dynamics model of the EMCVT actuator was established using MATLAB/Simulink. Then, the speed ratio feedback controller and driven pulley clamping force feedback controller were designed on the basis of the dynamics model. Finally, the simulations on dynamic characteristics of the electro-mechanical actuator under conditions of step change of CVT speed ratio and input torque were carried out with the designed controller. The results show that the overshoot and settling time of the speed ratio and driven pulley clamping force may meet the requirements of a CVT, and the response time of the driven pulley clamping force is less than 1 second and the maximum change rate of the CVT ratio reaches 2. Additionally, the response characteristics of the speed ratio and driven pulley clamping force are influenced by the torque loads and rotation directions of the execution DC motors.

Key words: electro-mechanical continuously variable transmission(EMCVT), dynamic characteristic, speed ratio, clamping force

中图分类号:

U463.2

刘俊龙1;孙冬野1;刘小军1;叶明2;尤勇1. 机电控制无级变速器执行机构动态响应特性仿真研究[J]. 中国机械工程.

LIU Junlong1;SUN Dongye1;LIU Xiaojun1;YE Ming2;YOU Yong1. Study on Dynamic Response Characteristic Simulation of EMCVT Actuators[J]. China Mechanical Engineering.

参考文献

[1]杨阳，秦大同，杨亚联，等. 车辆CVT液压系统功率匹配控制与仿真[J]. 中国机械工程, 2006，17(4):426-431.

YANG Yang, QIN Datong, YANG Yalian, et al. Power Matching Control and Simulation on Hydraulic System of CVT[J]. China Mechanical Engineering, 2006, 17(4):426-431.

[2]YANG X, CHENG N, LI Z. Electro-mechanical Control Devices for Continuously Variable Transmissions[J]. SAE paper, 2008-01-1687.

[3]YE M, LIU Y G, CHENG Y. Modeling and Ratio Control of an Electromechanical Continuously Variable Transmission[J]. International Journal of Automotive Technology, 2016, 17(2):225-235.

[4]LIU Junlong, SUN Dongye, YE Ming, et al. Study on the Transmission Efficiency of Electro-mechanical Continuously Variable Transmission with Adjustable Clamping Force[J]. Mechanism and Machine Theory, 2018, 126:468-478.

[5]叶明，李鑫，程越. 搭载机电控制CVT的电动车快速控制原型[J]. 中国公路学报, 2015，28(1): 112-119.

YE Ming, LI Xin, CHENG Yue. Rapid Control Prototyping of Electric Vehicle Equipped with Electric-mechanical Continuously Variable Transmission[J]. China Journal of Highway and Transport, 2015, 28(1):112-119.

[6]VEENHUIZEN P A, BONSEN B, KLAASSEN T W G L, et al. Pushbelt CVT Efficiency Improvement Potential of Servo-electromechanical Actuation and Slip Control[J]. SAE Paper, 2004-40-0049.

[7]叶明，程越. 电驱动无级自动变速传动动态控制研究[J]. 机械传动, 2011, 35(2): 9-12.

YE Ming, CHENG Yue. Study on Dynamic Control of Continuously Cariable Transmission Driven by DC Motor[J]. Journal of Mechanical Transmission, 2011, 35(2): 9-12.

[8]CHOLIS N, ARIYONO S, PRIYANDOKO G. Design of Single Acting Pulley Actuator (SAPA) Continuously Variable Transmission (CVT)[J]. Energy Procedia, 2015, 68: 389-397.

[9]SUPRIYO B, TAWI K B， JAMALUDDIN H. Experimental Study of an Electro-mechanical CVT Ratio Controller[J]. International Journal of Automotive Technology, 2013, 14(2): 313-323.

[10]MAZALII I I, TAWI K B, SUPRIYO B, et al. Clamping Force Mechanism of Electro-mechanical Continuously Variable Transmission for Automotive[J]. Australian Journal of Basic and Applied Sciences, 2015, 9(9): 31-36.

[11]张兰春，常思勤. 全电调节带式无级变速器的理论分析与试验验证[J]. 汽车工程, 2009，31(8): 751-755.

ZHANG Lanchun, CHANG Siqin. Theoretical Analysis and Test Verification of All-electrically Regulated CVT[J]. Automotive Engineering, 2009, 31(8): 751-755.

[12]张兰春，柴华伟，杭卫星，等. 全电调节无级变速器理论分析及速比控制研究[J].电机与控制应用, 2015,42(4): 6-10.

ZHANG Lanchun, CHAI Huawei, HANG Weixing, et al. Theoretical Analysis and Speed Ratio Control Study of an Electrical Continuously Variable Transmission Pulley Actuation System[J]. Electric Machines & Control Application, 2015, 42(4): 6-10.

[13]罗勇，孙冬野，叶明，等. CVT夹紧力控制系统动态性能及其影响因素分析[J]. 汽车工程, 2014，36(9): 1100-1105.

LUO Yong, SUN Dongye, YE Ming, et al. Analysis on the Dynamic Performance and Its Influencing Factors of CVT Clamping Force Control System[J]. Automotive Engineering, 2014, 36(9): 1100-1105.

[14]孙冬野，秦大同，汪新国. 无级变速传动系统速比变化率的设计方法[J]. 汽车工程, 2006，28(10): 910-913.

SUN Dongye, QIN Datong, WANG Xinguo. Design Method of Ratio Changing Rate of Continuously Variable Transmission System[J]. Automotive Engineering, 2006, 28(10): 910-913.

[15]邹云飞，胡纪滨，苑士华，等. 金属带式无级变速器液压控制系统对速比特性的影响分析[J]. 机械传动, 2009，33(5): 76-78.

ZOU Yunfei, HU Jibin, YUAN Shihua, et al. The Characteristics Investigation of the Ratio Control of Metal Belt Continuously Variable Transmission[J]. Journal of Mechanical Transmission, 2009, 33(5): 76-78.