农业机械学报2011，Vol.42Issue(4)：1-7,7.
自动变速车辆坡道行驶自适应换挡策略
Self-adaptive Slope Gearshift Strategy for Automatic Transmission Vehicles
摘要
Abstract
With the analysis of vehicle longitudinal dynamic model, a modified recursive least squares for online estimation of vehicle mass and generalized slope was established. Compared with the recursive least squares of single forgetting factor, the modified algorithm had better performance in estimation of parameters with different change rates. On the base of that, the self-adaptive gearshift strategies of uphill and downhill slopes were developed. The vehicle road test results indicated that these strategies could improve the slope traveling performance of automatic transmission and overcome the problems encountered by traditional gearshift strategy travels on slopes.关键词
自动变速器/自适应换挡策略/改进型最小二乘辨识/整车质量识别/坡度识别Key words
Automatic transmission/ Self-adaptive gearshift strategy/ Modified least squares estimation/ Vehicle mass recognition/ Slope recognition分类
交通运输引用本文复制引用
史俊武,鲁统利,李小伟,张建武..自动变速车辆坡道行驶自适应换挡策略[J].农业机械学报,2011,42(4):1-7,7.基金项目
国家自然科学基金资助项目(60674094) （60674094）
