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XIA Guang, TANG Xi-wen, SUN Bao-qun, CHEN Wu-wei. Automotive automatic transmission shift control based on layered coordination[J]. Journal of Traffic and Transportation Engineering, 2012, 12(4): 50-58. doi: 10.19818/j.cnki.1671-1637.2012.04.007
Citation: XIA Guang, TANG Xi-wen, SUN Bao-qun, CHEN Wu-wei. Automotive automatic transmission shift control based on layered coordination[J]. Journal of Traffic and Transportation Engineering, 2012, 12(4): 50-58. doi: 10.19818/j.cnki.1671-1637.2012.04.007
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Automotive automatic transmission shift control based on layered coordination

doi: 10.19818/j.cnki.1671-1637.2012.04.007
  • 1.

    Institute of Automotive Engineering, Hefei University of Technology, Hefei 230009, Anhui, China

  • 2.

    School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009, Anhui, China

  • 3.

    Department of Information, Electronic Engineering Institute, Hefei 230037, Anhui, China

More Information
  • Author Bio:

    XIA Guang (1983-), male, assistan tresearcher, doctoral student, +86-551-5393370, xiaguang008@163.com

    CHEN Wu-wei (1951-), male, professor, PhD, +86-551- 2901750-2412, cww@mail.hf.ah.cn

  • Received Date: 2012-02-16
  • Publish Date: 2012-08-25
    Abstract
  • Automotive automatic transmission control strategy was divided into upper and bottom layer control parts, and its layered coordinated control was adopted.The bottom layer was the basic shift controls of optimal power and optimal economy, the upper decision-making layer was used to give the dominant analysis and priority settings for the identifiable informations of driving intention, vehicle condition and road environment, vechicle control objective with optimal performance at present state was given, and the amendment and adjustment of basic shift control strategy for bottom layer were made.Analysis result indicates that compared with independent control, the shift times of vehicles based on layered coordinated control strategy in climbing ramp and bend conditions reduce by 4 times and 2 times respectively, shift reduces promptly when gearbox oil temperature rises, and shift is higher when vehicle starts on low-adhesion coefficient road.The layered coordinated control strategy can reduce shift jump frequency and the wear and tear of shifting part, improve vehicle passing ability, ride comfort and safety.

     

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