F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
341/38.13
F02D 29/00 (2006.01) F02D 28/00 (2006.01) F02D 41/14 (2006.01) F02B 1/04 (2006.01)
Patent
CA 1176348
TITLE OF THE INVENTION AIR/FUEL RATIO FEEDBACK CONTROL SYSTEM ADAPTED TO OBTAIN STABLE ENGINE OPERATION UNDER PARTICULAR ENGINE OPERATING CONDITIONS ABSTRACT OF THE DISCLOSURE An air/fuel ratio feedback control system adapted to control the air/fuel ratio of an air/fuel mixture being supplied to an internal combustion engine, by the use of a first coefficient having a value variable in response to actual exhaust gas concentration and at least one second coefficient having a value variable in dependence on the kind of a particular operating condition or region in which the engine is operating. The control system is operable such that when the engine is operating in an operating con- dition other than predetermined particular operating condi- tions of the engine, the value of the first coefficient is varied in response to the output of an exhaust gas concen- tration sensor, and simultaneously the value of the second coefficient is held at a first predetermined value, and when the engine is operating in one of the predetermined particular operating conditions, the value of the second coefficient is held at a second predetermined value, and simultaneously the value of the first coefficient at a third predetermined value which is a mean value of values of the first coefficient obtained when the engine is operating in the above operating condition other than the particular operating conditions.
402703
Hasegawa Shumpei
Kishi Noriyuki
Honda Giken Kogyo Kabushiki Kaisha
Smart & Biggar
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