Title:
【発明の名称】内燃機関用燃料制御システム、燃料量制御方法及び燃料量制御システム
Document Type and Number:
Japanese Patent JP3377409
Kind Code:
B2
Abstract:
A system for controlling fuel flow in an internal combustion engine receives a command specifying a desired fuel flow rate from an electronic control module. The system generates a feedforward estimate of actuator current required to produce the desired flow rate. This estimate is combined with a fueling current offset value generated using a proportional-integral feedback controller. A differential pressure between the fuel rail and cylinder gas is converted, by surface interpolation based on a lookup table, to an estimate of actual fuel flow rate. The difference between this actual fuel flow rate and the desired flow rate is provided to the feedback controller as an error signal. The feedback controller preferably uses different gain values depending on an operating mode of the engine (speed control and torque control modes).
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Inventors:
Gregory Webber
James H. Ross
Michael Jay Ruth
Prakash Bedapudi
David A. Boris
Stefan M. Hol
Keith El. Masser
Daniel Dee. Wilhelm
David A. Olson
Jeffrey P. Seger
James H. Ross
Michael Jay Ruth
Prakash Bedapudi
David A. Boris
Stefan M. Hol
Keith El. Masser
Daniel Dee. Wilhelm
David A. Olson
Jeffrey P. Seger
Application Number:
JP19059297A
Publication Date:
February 17, 2003
Filing Date:
July 01, 1997
Export Citation:
Assignee:
Cummins Engine Company, Inc.
International Classes:
F02M37/08; F02D41/04; F02D41/14; F02D41/20; F02D41/24; F02D41/38; F02M59/20; (IPC1-7): F02D41/20; F02D41/04; F02M37/08; F02M59/20
Domestic Patent References:
| JP828381A | ||||
| JP7103105A | ||||
| JP61272447A | ||||
| JP6137199A | ||||
| JP4365956A | ||||
| JP8232703A | ||||
| JP8210209A | ||||
| JP3189352A |
Attorney, Agent or Firm:
Atsushi Nakajima (2 outside)