Simple linear feedback and extremum control of GDI engines

Paper #:
  • 2000-05-0056

Published:
  • 2000-06-12
Pages:
8
Abstract:
A novel approach to the control of a GDI engine is presented. The controller consists of a combination of subcontrollers, where torque feedback is a central part. The subcontrollers are with a few exceptions designed using simple linear feedback and feedforward control design methods, in contrast to traditional table-based engine control. An extremum controller is used to minimize the fuel consumption in stratified mode. The controller has been evaluated with good results on the European driving cycle using a dynamic simulation model.
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