Automobile on-demand gear-shift control including driver characteristics

Masayuki Okamoto*, Shigeru Morimoto, Masataka Ohashi, Kenko Uchida

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)


    In this paper, a new automobile gear-shift control for Continuously Variable Transmissions (CVTs) is presented. Conventional gear-shift control is based on so-called maps. Its setting is generally conservative and drivers can change shift maps themselves by operating switches such as a gear-shift or tip switches. However, it is troublesome for the drivers who are not positive for driving to operate them. To overcome this problem, we design a new gear-shift control for CVTs considering the driver characteristics of gear-shift operation based on a Just-In-Time(JIT) modeling. In addition, we reduce the number of input variables of the JIT model by linear regression in view of the limits on memory capacity and computational load for on-line calculation. Furthermore, the output of JIT model is smoothed with the least squares B-spline interpolation. Our experiments show that it has downshifted automatically on demand without driver's gear-shift operation when approaching curves.

    Original languageEnglish
    Title of host publicationProceedings of the IEEE International Conference on Control Applications
    Number of pages6
    Publication statusPublished - 2010
    Event2010 IEEE International Conference on Control Applications, CCA 2010 - Yokohama
    Duration: 2010 Sept 82010 Sept 10


    Other2010 IEEE International Conference on Control Applications, CCA 2010

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Computer Science Applications
    • Mathematics(all)


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