EP 0407406 B1 19910918 - LEARNING CONTROL PROCESS AND DEVICE FOR INTERNAL COMBUSTION ENGINES
Title (en)
LEARNING CONTROL PROCESS AND DEVICE FOR INTERNAL COMBUSTION ENGINES
Publication
Application
Priority
DE 3811262 A 19880402
Abstract (en)
[origin: WO8909334A1] In a learning process for regulating and presetting the lambda value of an air/fuel mixture to be supplied to an internal combustion engine (11), a large comparison value is compared with a small comparison value. The large comparison value is obtained by averaging adaptation factors for large pilot control values and the small comparison factors for small pilot control values. If the large comparison value is smaller than the small comparison value, a global summand is increased by a correction value, and decreased in other cases. The advantage of a device which operates according to this process is that disturbances having a cumulative effect on the injection time are compensated with a high degree of precision.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/24 (2006.01); F02D 45/00 (2006.01)
CPC (source: EP KR US)
F02D 41/24 (2013.01 - KR); F02D 41/2454 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8909334 A1 19891005; DE 3811262 A1 19891012; DE 58900307 D1 19911024; EP 0407406 A1 19910116; EP 0407406 B1 19910918; JP H03503559 A 19910808; KR 0137220 B1 19980425; KR 900700744 A 19900816; US 5065726 A 19911119
DOCDB simple family (application)
DE 8900135 W 19890304; DE 3811262 A 19880402; DE 58900307 T 19890304; EP 89902931 A 19890304; JP 50271889 A 19890304; KR 890702226 A 19891129; US 58510490 A 19901002