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CLC number: U270.1

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Received: 2003-10-08

Revision Accepted: 2004-01-10

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.7 P.878~883

http://doi.org/10.1631/jzus.2004.0878


Study on shift schedule saving energy of automatic transmission of ground vehicles


Author(s):  GONG Jie, ZHAO Ding-xuan, CHEN Ying, CHEN Ning

Affiliation(s):  College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China; more

Corresponding email(s):   gongjie@zju.edu.cn

Key Words:  Ground vehicle, Hydrodynamic drive, Automatic transmission, Shift schedule, Saving energy, Shift quality


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GONG Jie, ZHAO Ding-xuan, CHEN Ying, CHEN Ning. Study on shift schedule saving energy of automatic transmission of ground vehicles[J]. Journal of Zhejiang University Science A, 2004, 5(7): 878~883.

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doi="10.1631/jzus.2004.0878"
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DOI - 10.1631/jzus.2004.0878


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 transmission’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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Gong, J., Zhao, D.X., 2001a. Study on shift schedule and simulation of automatic transmission.Chinese Journal of Mechanical Engineering,14:250-253.

[2] Gong, J., Zhao, D.X., 2001b. Study on shift schedule and auto-controlling simulation of automatic transmission.Journal of Xi'an Jiaotong University,35:930-934 (in Chinese).

[3] Gong, J., 2002. Study on Shift Schedule of Automatic Transmission for High Efficiency. Ph.D thesis, Jilin University, China (in Chinese).

[4] Lei, Y.L., Ge, A.L., Qin, G.H., 1999. Testing study of improving shift quality of automated mechanical transmission.Chinese Journal of Highway and Transport,12:95-99 (in Chinese).

[5] Sakaguchi, S., 1993. Application of Fuzzy Logic to Scheduling Method for Automatic Transmission. Proc. of 1993 IEEE SMC, p.94-100.

[6] Shen, S.W., 1997. Study on Intelligent Shift Strategy with the Humachine Technology. SAE paper 973279, p.665-670.

[7] Wang, K., Huang, Z.Y., Zhan, Y.H., 2000. Shift manoeuvre of loader transmission.Construction Machinery and Equipment,31:18-21 (in Chinese).

[8] Yamaguchi, H., Narita, Y., Takahashi, H., Katou, Y., 1993. Automatic Transmission Shift Schedule Control Using Fuzzy Logic. SAE paper 930674, p.1077-1088.

[9] Zhao, D.X., Ma, Z., Yang, L.F., 2001. Study on kinetic characteristic of engineering vehicular hydrodynamic drive.Chinese Mechanical Engineering, 12:948-950 (in Chinese).

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