低速巡航中车辆离合器转速跟踪控制技术  

Vehicle Clutch Speed Tracking Control Technology in Low-speed Cruise

作　　者：王国新 WANG Guoxin(Zhicheng College,Fuzhou University,Fuzhou 350002,China)

机构地区：[1]福州大学至诚学院,福建福州350002

出　　处：《机械制造与自动化》2023年第6期187-192,198,共7页Machine Building & Automation

摘　　要：为提高离合器控制性能,研究低速巡航中AMT车辆离合器转速跟踪控制技术。基于AMT车辆动力传动系统的动力学特性,构建动力系统和整车运动的数学模型。简化AMT传动系统,提出低速巡航中的离合器控制要求,设计三步法控制器。通过Lyapunov函数分析控制算法的鲁棒性,通过实车试验对比验证所提方法。试验结果表明:对比PID控制法,无论是阶跃变速、正弦变速还是随机变速,无论是平道跟踪还是坡道跟踪,三步法控制策略在AMT低速巡航中均具有更优的跟踪效果和控制效果,响应时间更短,跟踪误差更小,延迟效果最低。To upgrade the clutch control performance,the clutch speed tracking control technology of automated manual transmission vehicle in low-speed cruise was studied.Based on the dynamic characteristics of the AMT vehicle powertrain,the mathematical models of the powertrain and vehicle motion were constructed.The AMT transmission system was simplified,the clutch control requirements in low-speed cruise were proposed,and a three-step controller was designed.By the Lyapunov function,the robustness of the control algorithm was analyzed,and the real vehicle test was conducted to verify the proposed method.The test results show that compared with the PID control method,the three-step control strategy has better tracking and control effects,shorter response time,less tracking errors and lower delay effect in AMT low-speed cruise regardless of step speed change,sinusoidal speed change or random speed change,flat track tracking or ramp tracking.

关 键 词：低速巡航 三步法控制策略 车速跟踪 离合器控制 LYAPUNOV函数 

分 类 号：U463[机械工程—车辆工程]