Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (7): 1844-1850.doi: 10.13229/j.cnki.jdxbgxb.20230195

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Design of automatic mechanical transmission system based on torsional vibration reduction

Ying AN(),Shuai GAO()   

  1. School of Mechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China
  • Received:2023-02-08 Online:2024-07-01 Published:2024-08-05
  • Contact: Shuai GAO E-mail:anyyy204@163.com;goalsure@163.com

Abstract:

In order to improve the consistency and stability of automobile transmission, a design method of automobile mechanical automatic transmission system based on torsional damping is proposed. The hardware structure of automatic mechanical transmission system is composed of main control chip, minimum system, input/output circuit, communication interface, motor drive circuit and torsional damper. The dynamic model of the vehicle in the starting state and the sliding state is established. On this basis, the vehicle speed control is realized through fuzzy control and Fuzzy-Bang Bang dual mode control, and the design of the automatic mechanical transmission system of the vehicle is completed. The experimental results show that the shift time of the proposed method is short and the stability of the shift process is high.

Key words: auto mechanical transmission, torsional damper, dynamic model, fuzzy control, transmission system design

CLC Number: 

  • TH132

Fig.1

Control block diagram of automatic mechanical transmission system"

Fig.2

Reset circuit and clock circuit"

Fig.3

CAN bus communication drive circuit"

Fig.4

Double-mass flywheel"

Fig.5

Fuzzy controller"

Fig.6

Test results of shifting sliding film work by different methods"

Fig.7

Performance test results of different methods"

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