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Virtual Clutch Controller for Clutch-to-Clutch Shifts in Planetary-Type Automatic Transmission

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  • Yunjiang Cheng
  • Peng Dong
  • Shuai Yang
  • Xiangyang Xu

Abstract

It is known that the shift processes of the four types of clutch-to-clutch shifts can theoretically be divided into two phases which are torque phase and inertia phase, but the execution orders are different. Two virtual clutch controllers are designed with the same eight states which include all control processes for these shifts. An equivalent method is proposed so that AT can be controlled just like DCT by adopting the torque ratios of oncoming clutch and offgoing clutch of each gear. The powertrain system model and the shift controller are established on Matlab/Simulink platform. The clutch-to-clutch shift processes have been studied based on the virtual clutch controller by software-in-the-loop simulations. Some typical problems in the clutch-to-clutch shift control are discussed and several control methods are compared to solve these problems.

Suggested Citation

  • Yunjiang Cheng & Peng Dong & Shuai Yang & Xiangyang Xu, 2015. "Virtual Clutch Controller for Clutch-to-Clutch Shifts in Planetary-Type Automatic Transmission," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-16, September.
    • Handle: RePEc:hin:jnlmpe:213162
    DOI: 10.1155/2015/213162
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