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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2015> 24(4): 458-465
WAN Guo-qiang, LI Ke-qiang, PEI Ling, HUANG Ying, ZHANG Fu-jun. Optimal tracking control for automatic transmission shift process[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2015, 24(4): 458-465. doi: 10.15918/j.jbit1004-0579.201524.0405
Citation: WAN Guo-qiang, LI Ke-qiang, PEI Ling, HUANG Ying, ZHANG Fu-jun. Optimal tracking control for automatic transmission shift process[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2015, 24(4): 458-465.doi:10.15918/j.jbit1004-0579.201524.0405
shu

Optimal tracking control for automatic transmission shift process

doi:10.15918/j.jbit1004-0579.201524.0405
  • 1.

    State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

  • 2.

    Laboratory for Integrated Power System Technology, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2014-10-31
    Abstract
  • In order to improve the shift quality, a linear quadratic optimal tracking control algorithm for automatic transmission shift process is proposed. The dynamic equations of the shift process are derived using a Lagrange method. And a powertrain model is built in the Matlab/Simulink and verified by the measurements. Considering the shift jerk and friction loss during the shift process, the tracking trajectories of the turbine speed and output shaft speed are defined. Furthermore, the linear quadratic optimal tracking control performance index is proposed. Based on the Pontryagin's minimum principle, the optimal control law of the shift process is presented. Finally, the simulation study of the 1-2 upshift process under different load conditions is carried out with the powertrain model. The simulation results demonstrate that the shift jerk and friction loss can be significantly reduced by applying the proposed optimal tracking control method.
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    • References (12)
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