Optimization Based Design for Integrated Powertrain Control With Electronic Throttle

Author:

Kim Daekyun1,Peng Huei1,Bai Shushan2,Maguire Joel M.2

Affiliation:

1. University of Michigan

2. GM Powertrain

Abstract

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.

Publisher

ASMEDC

Reference14 articles.

1. Costin, M., Schaller, R., Maiorana, M., Purcell, J., Simon, R., Bauerle, P., and Stockbridge, J., “An Architecture for Electronic Throttle Control Systems,” SAE Paper, No. 2003-01-0098, 2003.

2. Streib, H. and Bischof, H., “Electronic Throttle Control (ETC): A Cost Effective System for Improved Emissions, Fuel Economy, and Driveability,” SAE Paper, No. 960338, 1996.

3. Ge, A., Qin, G., Ge, S., and Li, H., “Drive-By-Wire(DBW) Control of Power Train System During the Automatic Shifting,” SAE Paper, No. 9530841, 1995.

4. Minowa T. , KimuraH., OzakiN., and IbamotoM., “Improvement of fuel consumption for a vehicle with an automatic transmission using driven power control with a powertrain model,” JSAE Review, Vol. 17, 1996, p. 375–380.

5. Yasuoka, M., Uchida, M., Katakura, S., and Yoshino, T., “An Integrated Control Algorithm for an SI Engine and a CVT,” SAE Paper, No. 1999-01-0752, 1999.

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