Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1991-02-12
1991-12-10
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
123494, 731182, 364510, 364550, F02D 4118, G01F 134
Patent
active
050708465
ABSTRACT:
A method for estimating and correcting bias errors in a vehicle system which implements iterative prediction and estimation to determine a measure of at least one determinable vehicle engine parameter determines if the vehicle engine is in a substantially steady state condition, determines a measure of error between the predicted and measured values of a control parameter while the vehicle is in the steady state condition, estimates a system bias in response to the determined error, and offsets the system bias in subsequent predictions, thereby reducing the error between the predicted and measured values of the control parameter and increasing the accuracy of the estimations of the determinable vehicle parameter.
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Davis Ronald A.
Dudek Kenneth P.
General Motors Corporation
Simon Anthony Luke
Wolfe Willis R.
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