动力换挡变速器多离合器换挡控制策略研究  

Research on Multi-clutch Shift Control Strategy of Power Shift Transmission

作　　者：蔡祖戈 詹东安 Cai Zuge;Zhan Dong’an

机构地区：[1]江苏汇智高端工程机械创新中心有限公司,221004

出　　处：《工程机械》2022年第9期8-13,I0013,共7页Construction Machinery and Equipment

摘　　要：多挡动力换挡变速器在换挡过程中,为保证动力不中断和换挡平顺性,需要对多个离合器进行最优控制。提出一种分阶段控制的多离合器结合策略。通过对离合器结合与分离过程进行动力学分析,并基于搭建的平地机底盘传动系统机电液耦合仿真模型,对变速器换挡过程进行动态模拟分析及策略验证。整机换挡平顺性试验结果表明,采用分阶段控制策略的变速器在实际换挡过程可以实现动力不中断,保证了换挡平顺性,验证了控制策略的有效性。During shifting of a multi-gear power shift transmission,to ensure uninterrupted power and smooth shifting,optimal control of multiple clutches is required.A multi-clutch engagement strategy with phased control is proposed.Through the dynamic analysis of the clutch engagement and disengagement processes and based on an electro-mechanical-hydraulic coupling simulation model of the grader chassis transmission system,the dynamic simulation analysis and strategy verification of the transmission shift process are carried out.The test results of the overall shift smoothness show that the transmission with the phased control strategy can achieve uninterrupted power during the actual shift process,which ensures the shift smoothness and verifies the effectiveness of the control strategy.

关 键 词：动力换挡变速器 结合策略 换挡控制 仿真分析 

分 类 号：U463.211[机械工程—车辆工程]