Modeling and exact feed forward control of air and burned gas fraction within SI engine cylinders

Beckmann, Robert B.; Drewelow, Wolfgang

doi:10.1109/mmar.2011.6031365

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A Dynamic Modeling1

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2012

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“…The derivation of these equations can be found in [7]. The remaining reservoirs in the considered system are assumed to be filled with only one species of gas, either air or exhaust gas.…”

Section: A Dynamic Modelingmentioning

confidence: 99%

Exact air charge feed forward control of a turbocharged SI engine

Beckmann

Drewelow

Lampe

et al. 2012

2012 IEEE International Conference on Control Applications

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In this work, a MIMO feed forward control for the air charge, i.e. the mass of air in the cylinders of a turbo charged spark ignition (SI) engine is presented. The control inputs are the angle of the throttle plate and the opening of the wastegate. There are many publications in this field of application. Often the control task is separated into an air charge control with the throttle plate as control input and a boost pressure control with the wastegate opening as control input. These approaches often lack the ability to precisely track reference trajectories in the transition between suction mode operation and turbocharged operation. The approach presented here is based on exact input-output linearization and enables a perfect tracking of air charge reference trajectories in both modes of operation and the transition between them.

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“…The derivation of these equations can be found in [7]. The remaining reservoirs in the considered system are assumed to be filled with only one species of gas, either air or exhaust gas.…”

Section: A Dynamic Modelingmentioning

confidence: 99%