G - Physics – 05 – D
Patent
G - Physics
05
D
341/38.122
G05D 7/06 (2006.01) F02D 41/06 (2006.01) F02D 41/14 (2006.01) G05D 11/13 (2006.01)
Patent
CA 1068800
A CONTROL SYSTEM FOR NORMALIZING THE AIR/FUEL RATIO IN A FUEL INJECTION SYSTEM ABSTRACT OF THE DISCLOSURE In a closed loop fuel injection system for an internal combustion engine, a control system responding to several engine operating conditions and to rich fuel power demands operates to normalize the air/fuel ratio to a fixed air/fuel ratio. In the preferred embodiment the system responds to the operating temperature of a gas sensor to effectively remove the influence of the sensor control signals at nonoperational temperature upon the air/fuel ratio developed by the electronic control unit. In addition transducers responding to engine speed, wide open throttle, and coolant temperatures generate control signals to the control system indicating a requirement for engine operation of normalized air/fuel ratio. -1-
248470
Oberstadt Allan L.
Toelle Alvin D.
Wen Gene Y.
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