title: Study on shift schedule saving energy of automatic transmission of ground vehicles.
abstract: To improve ground vehicle efficiency, shift schedule energy saving was proposed for the ground vehicle automatic transmission by studying the function of the torque converter and transmission in the vehicular drivetrain. The shift schedule can keep the torque converter working in the high efficiency range under all the working conditions except in the low efficiency range on the left when the transmission worked at the lowest shift, and in the low efficiency range on the right when the transmission worked at the highest shift. The shift quality key factors were analysed. The automatic trans-mission's bench-test adopting this shift schedule was made on the automatic transmission's test-bed. The experimental results showed that the shift schedule was correct and that the shift quality was controllable.
authors.affiliation: College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China. gongjie@zju.edu.cn.
authors.forename: Jie
authors.initials: J
authors.lastname: Gong
authors.forename: Ding-Xuan
authors.initials: DX
authors.lastname: Zhao
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.forename: Ning
authors.initials: N
authors.lastname: Chen
mesh_terms: D000465:Algorithms; D001336:Automobiles; D003198:Computer Simulation; D017076:Computer-Aided Design; D004735:Energy Transfer; D019544:Equipment Failure Analysis / Q000379:methods*; D008962:Models, Theoretical