摘要
AMT自动变速器配置有离合器伺服控制系统。离合器起步及换挡品质主要取决于离合器伺服控制系统控制结合时间以及作用力大小控制。因此有必要对离合器的结合特性进行研究,以保证获得良好的起步平顺性及快速性。提出的控制策略包括满足同步要求的速度控制和满足平顺性要求的转矩控制,并且设计了转矩观测器。建立了SIMULINK模型,仿真结果表明本控制策略能同时满足快速性和平顺性要求,提高了自动变速器的工作性能。这对我国进行AMT系统的自主创新开发具有重要意义。
Automated Manual Transmission vehicles are generally equipped with the servo-actuated clutch engagement system.In that system,start of clutch and shift quality depends on the engaging time and normal force in controlling the clutch.It is therefore crucial to study the control performance in order to guarantee smooth and rapid engagement of the clutch.This article proposes the control architecture that consists of the speed control for synchronization and the torsion control for reducing shift shocks incorporating a shaft torque observer.The proposed control structure assures a fast engagement while preventing an abrupt change in vehicle acceleration at the same time.The SIMULINK model built proves that this control strategy can satisfy requirement for the rapid and smooth,which improves the quality of AMT automated clutch.All above it will be great importance in independent innovation of the AMT system both in research and application aspects.
出处
《机械设计与制造》
北大核心
2012年第7期171-173,共3页
Machinery Design & Manufacture
