摘要
为了解决自动变速器静态换挡中充油阶段结束时刻离合器油压波动问题,分析了静态换挡的关键充油特性并提出了充油阶段的优化控制策略。构建了包括手动阀、液控换向阀和离合器的机电液多物理耦合的仿真模型并进行仿真分析。结果表明,优化控制策略可以明显缩小充油阶段结束时刻离合器的油压波动,证明了提出的控制策略的可行性、正确性与有效性。
In order to solve the problem of clutch pressure fluctuation at the end of the oil-filled stage in the static gear shift process of automatic transmission, the key oil-filled properties of the static gear shift was analyzed in this paper, the optimizing control method for the oil-filled stage was also proposed. In addition, a mechanical-electrical-hydraulic coupling simulation model involving the manual valve, directional valve and clutch was established and simulated. The simulation results show that the optimizing control method proposed in the paper can significantly reduce the clutch oil pressure fluctuations at the end of the oil-filled stage. Finally, the feasibility and validity of the control method have been demonstrated by the simulation results.
作者
王书翰
杨帅
王家琪
陈志峰
WANG Shuhan YANG Shuai WANG Jiaqi CHEN Zhifeng(School of Transportation Science and Engineering, Beihang University, Beijing 100191, China National Engineering Research Center for Passenger Car Auto-Transmissions, Weifhng 261205, Shandong, China Beijing Key Laboratory for High-efficient Power Transmission and System Control of New Energy Resource Vehicle, BeihangUniversity, Beijing 100191, China)
出处
《汽车工程学报》
2017年第1期37-43,共7页
Chinese Journal of Automotive Engineering
基金
国家自然科学基金(51405010)
山东省自然科学基金(BS2015ZZ07)
关键词
静态换挡
充油阶段
手动阀
液控换向阀
离合器
优化控制
static gear shift
oil-filled stage
manual valve
hydraulic directional valve
clutch
optimizing control
