Feedback engine control

Details Feedback engine control Feedback engine control

1996-12-02

1998-07-07

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123688, F02D 4100

Patent

active

057753113

ABSTRACT:
An engine feedback control system that includes an arrangement for setting lower tolerance limits on the rich and lean side in response to certain engine running characteristics so as to avoid unstable running as might occur under abnormal conditions when wider limits are set as with prior art type constructions. In addition, the increasing limit of fuel supply is set different from the decreasing limits so as to maintain the engine operation within the stable running area regardless of whether the conditions are normal or abnormal.

REFERENCES:
patent: 4320730 (1982-03-01), Takada et al.
patent: 4825837 (1989-05-01), Nakagawa
patent: 4913120 (1990-04-01), Fujimoto et al.
patent: 5347974 (1994-09-01), Togai et al.

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