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Reducing automotive engine speed fluctuation at idle

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4 Author(s)

This paper concerns an automotive idle speed control problem. Specifically, a problem of reducing engine idle speed fluctuations is considered. The authors develop an engine model for the instantaneous engine speed containing quasi-AC component. When there are different torque variations in the cylinders of the engine, the periodic variation of the engine speed fluctuates, which causes more vibration of the vehicle. The authors develop a control strategy to reduce this fluctuation with only engine speed as the measured variable by using four spark advances as control inputs

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:4 ,  Issue: 4 )