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FISITA 2012 World Automotive Congress--Volume 5:Advanced Transmission System and Driveline

作者： Hua Tian Peng Chen Powertrain Department Pan Asia Technical Automotive Center

lever analogy is very useful in analyzing gear-train including more than one planetary gear *** lever analogy is a translational-system representation of the rotating parts for the planetary *** lever analogy to GM 6T40 E transmission,kinematic and dynamic analysis is shown in this *** based shift control strategy is based on dynamic lever *** setting target output torque and desired turbine speed profile,the clutch pressure and torque request to engine can be *** more investigation on lever analogy,enhanced control strategy and new function are already invented.

关键词： lever analogy Planetary gear Steady state analysis Dynamic analysis Shift control strategy

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Configuration Synthesis and Performance Analysis of 9‑Speed Automatic Transmissions

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Chinese Journal of Mechanical Engineering 2020年第3期33卷 97-117页

作者： Huafeng Ding Changwang Cai Ziming Chen Tao Ke Bowen Mao School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China Hebei Provincial Key Laboratory of Parallel Robot and Mechatronic System Yanshan UniversityQinhuangdao 066004China School of Mechanical Engineering and Electronic Information China University of Geosciences(Wuhan)Wuhan 430074China.

Current research of automatic transmission(AT)mainly focuses on the improvement of driving performance,and configuration innovation is one of the main research ***,finding new configurations of ATs is one of the main limitations of configuration *** the present study,epicyclic gear trains(EGTs)are applied to investigate mechanisms of 9-speed *** four kinematic configurations are proposed for automatic *** order to evaluate the performance of proposed mechanisms,the lever analogy method is applied to conduct kinematic and mechanical *** power flow analysis is conducted,and then transmission efficiencies are calculated based on the torque *** comparative analysis between the proposed and existing mechanisms is carried out where obtained results show that proposed mechanisms have reasonable performance and can be used in *** prototype of an AT is manufactured and the speed test is conducted,which proves the accuracy of analysis and the feasibility of proposed mechanisms.

关键词： Automatic transmission Epicyclic gear train lever analogy Gear ratio Torque method

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Power Performance and Efficiency Analysis of Two Electric-continuously Variable Transmission for Hybrid Electric Bus

Power Performance and Efficiency Analysis of Two Electric-co...

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2019中国汽车工程学会年会

作者： Zeng Xiaohua Wang Xingqi Song Dafeng Li Guanghan Jilin University

This paper proposes two different electric-continuously variable transmission（EVT） configurations for a typical hybrid electric bus（HEB） during city conditions based on the Input-split Configuration with Single Planetary gearset（ICSP） which has been widely used to passenger *** the power performance and efficiency of these configurations are analyzed and compared based on the lever *** analysis indicates that the practical application of the Input-split Configuration with Dual Planetary gearsets（ICDP）is difficult because the efficiency in high-speed area is low and the motor speed has exceeded the reasonable range when the vehicle runs at the maximum *** the ICSP equipped with a Clutch（C-ICSP） has good applicability to the ***,the C-ICSP and the ICSP are compared through MATLAB/Simulink and Cruise co-simulation *** show that the total electric path power of C-ICSP is reduced by 13% compared with ICSP,hence the fuel consumption is reduced by 6%.

关键词： electric-continuously variable transmission hybrid electric bus lever analogy power performance transmission efficiency

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