Journal of Mechanical Science and Technology

  • 제14권7호
  • /
  • Pages.764-772
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  • 2000
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  • 1738-494X(pISSN)
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  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Integrated Engine-CVT Control Considering Powertrain Response Lag in Acceleration

  • Kim, Tal-Chol (Department of Mechanical Design Engineering, Graduate School, Sungkyunkwan University) ;
  • Kim, Hyun-Soo (School of Mechanical Engineering, Sungkyunkwan University)
  • 발행 : 2000.07.01
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초록

In this paper, an engine-CVT integrated control algorithm is suggested by considering the inertia torque and the CVT ratio change response lag in acceleration. In order to compensate for drive torque time delay due to CVT response lag, two algorithms are presented: (1) an optimal engine torque compensation algorithm, and (2) an optimal engine speed compensation algorithm. Simulation results show that the optimal engine speed compensation algorithm gives better engine operation around the optimal operation point compared to the optimal torque compensation while showing nearly the same acceleration response. The performance of the proposed engine-CVT integrated control algorithms are compared with those of conventional CVT control, and It is found that optimal engine operation can be achieved by using integrated control during acceleration, and improved fuel economy can be expected while also satisfying the driver's demands.

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참고문헌

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