摘要
机电控制CVT(EM-CVT)是一种新型无级变速传动装置,其速比跟随误差是作为评价车辆操纵性能的重要指标之一。为了对车辆行驶过程中EM-CVT与发动机动态匹配技术进行研究,通过实验获取了发动机的两种工作模式的外特性;并根据EM-CVT传动机理,理论分析车速与速比间的关系。以PID为基础,提出一种改进PID控制算法实现速比控制,并进行实验验证。实验结果表明,采用改进PID控制算法能获得较好的速比控制,具有实际应用价值。
Electromechanical control CVT（EM-CVT） is a new type of continuously variable transmission（CVT）,and its speed ratio follow error quality is an important parameter validated the performance of vehicle.In order to study the dynamical matching technology between EM-CVT and engine under the running state of vehicle,the special character of two working models is obtained by engine experiment,according to the mechanism of the EM-CVT,the relation between vehicle speed and speed ratio is theoretically analyzed.Based on the basic theory of PID control,the improved PID control algorithm is proposed for the speed ratio control of the EM-CVT,and experimental verification is made.The experimental results show that there is a significant effect on the system with this algorithm.
出处
《机械传动》
CSCD
北大核心
2012年第5期14-17,共4页
Journal of Mechanical Transmission
基金
国家中小企业创新基金(09C26222113202)
汽车零部件制造及检测技术教育部重点实验室开放基金项目(2010KLMT01)
关键词
无级变速器
控制算法
改进PID
速比
机电控制
Continuously variable transmission Control algorithm Improved PID Speed ratio Electromechanical control
