EP 0134083 A2 19850313 - Control system for air/fuel ratio adjustment system.
Title (en)
Control system for air/fuel ratio adjustment system.
Title (de)
Steuerungssysteme für ein Luft/Kraftstoffverhältnis-Justierungssystem.
Title (fr)
Système de commande pour un ensemble de contrÔle du rapport air/combustible.
Publication
Application
Priority
GB 8321176 A 19830805
Abstract (en)
The invention is concerned with a control system for an air/fuel ratio measurement and adjustment system for an internal combustion engine. In order to restrict operation of the air/fuel ratio measurement and adjustment system to occasions when adjustment is likely to be necessary, it is desirable to operate the system at approximately daily intervals. The control system incorporates an ambient temperature sensor and an engine coolant temperature sensor and is arranged to operate the measurement and adjustment system when the engine is started if the engine coolant temperature does not exceed the ambient temperature by more than a predetermined amount.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/24 (2006.01)
CPC (source: EP)
F02D 41/2441 (2013.01); F02D 41/2454 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0134083 A2 19850313; EP 0134083 A3 19851218; AU 3041384 A 19850207; GB 2144541 A 19850306; GB 2144541 B 19871209; GB 8321176 D0 19830907; JP S60104737 A 19850610
DOCDB simple family (application)
EP 84304553 A 19840704; AU 3041384 A 19840709; GB 8321176 A 19830805; JP 16299284 A 19840803