Engine control system and method

Details Engine control system and method Engine control system and method

1996-03-29

1998-03-10

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123689, 123481, F02D 4114

Patent

active

057249512

ABSTRACT:
A control system and method for a multi cylinder engine that employs a single sensor associated with only one of the combustion chambers for feedback control of that combustion chamber and for controlling the fuel/air ratio of the remaining combustion chambers. The control of the remaining combustion chambers is based upon the value of the feedback control upon the time of shifting between lean and rich mixtures. The reference value is selected, however, after the initial switch between rich and lean so as to permit time for stabilization. Engine protection is accomplished by cylinder diseabling. At that time feed back control is discontinued.

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patent: 4941442 (1990-07-01), Nanyoshi et al.
patent: 5522370 (1996-06-01), Katoh et al.
patent: 5526793 (1996-06-01), Johansson
patent: 5555871 (1996-09-01), Gopp et al.
patent: 5559703 (1996-09-01), Iwata et al.
patent: 5584281 (1996-12-01), Katoh

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