Optimization Based Design for Integrated Powertrain Control With Electronic Throttle

A process to design the control algorithm for an integrated powertrain system is proposed in this paper. The driver accelerator pedal position is first measured and interpreted as a power request. This power request is then satisfied by coordinating the transmission gear shift and the throttle position. The Dynamic Programming (DP) technique is used to obtain the optimal gear shift and throttle position for each predetermined constant power demands over a time horizon. The optimal results at different power levels are then combined to form a gear map and a throttle map. Flexible control architecture is presented where the relationship between the accelerator pedal rotation angle and the throttle opening angle can be adjusted according to the preference of the targeting customer group. Simulation and dyno test results show that the proposed integrated control scheme provides smooth constant power and improves fuel efficiency compared with the conventional transmission control scheme.Copyright © 2005 by ASME

[1]  Shinichi Sakaguchi,et al.  Development of an Engine-CVT Integrated Control System , 1999 .

[2]  Huei Peng,et al.  Energy management strategy for a parallel hybrid electric truck , 2001, Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148).

[3]  Hans-Martin Streib,et al.  Electronic Throttle Control (ETC): A Cost Effective System for improved Emissions, Fuel Economy, and Driveability , 1996 .

[4]  Hiroshi Kimura,et al.  Improvement of fuel consumption for a vehicle with an automatic transmission using driven power control with a powertrain model , 1996 .

[5]  R. Bellman.  Dynamic programming. , 1957, Science.

[6]  Masaaki Uchida,et al.  An Integrated Control Algorithm for an SI Engine and a CVT , 1999 .

[7]  Ilya Kolmanovsky,et al.  Dynamic Optimization of Lean Burn Engine Aftertreatment , 2001 .

[8]  B. Gluss.  An elementary introduction to dynamic programming : a state equation approach , 1972 .

[9]  Donald E. Kirk,et al.  Optimal control theory : an introduction , 1970 .

[10]  Paul A. Fenton Bauerle,et al.  An Architecture for Electronic Throttle Control Systems , 2003 .

[11]  Ian McCausland,et al.  Introduction to optimal control , 1968 .

[12]  Ilya Kolmanovsky,et al.  Optimization of powertrain operating policy for feasibility assessment and calibration: stochastic dynamic programming approach , 2002, Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301).

[13]  Leon Cooper,et al.  Introduction to Dynamic Programming , 1981 .