Fuel metering control system for internal combustion engine

Details Fuel metering control system for internal combustion engine Fuel metering control system for internal combustion engine

1995-12-29

1997-06-10

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123480, 123679, F02D 4114

Patent

active

056366213

ABSTRACT:
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled variable obtained at least based on an output of said air/fuel ratio sensor, to a desired value. Estimation error of the controller parameters are defined by an error signal e*. The system is configured such that the signal is compared with a limit value and is replaced to a predetermined value when the calculated estimation error signal exceeds the limit value. Thus, the signal is determined to be a predetermined value.

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"Unification of Discrete Time Explicit Model Reference Adaptive Control Designs", Automatica, vol. 17, no. 4, pp. 593-611, Pergamon Press, 1981.
"Combining Model Reference Adaptive Controllers and Stochastic Self-tuning Regulators", Automatica, vol. 18, No. 1, pp. 77-84, Pergamon Press, 1982.

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