EP 0127510 B1 19871216 - METHOD OF INTERRUPTING FUEL INJECTION INTO AN INTERNAL-COMBUSTION ENGINE DURING DECELERATION
Title (en)
METHOD OF INTERRUPTING FUEL INJECTION INTO AN INTERNAL-COMBUSTION ENGINE DURING DECELERATION
Publication
Application
Priority
FR 8307971 A 19830513
Abstract (en)
[origin: US4558672A] A process whereby fuel injection is interrupted in response to detection of a deceleration and injection is again ordered when a threshold linked to the engine speed is reached. The engine speed (N) or period of rotation (T) is measured from consecutive equal intervals or angles of rotation. A difference ( DELTA T, DELTA N) is then computed between the value of the last measured speed or period and the value seen through a high-pass filter of the speed or period measured at the preceding interval. This difference ( DELTA T, DELTA N) is compared with a fixed threshold (S) and if an engine deceleration condition is detected, fuel injection is again ordered when the difference ( DELTA T, DELTA N) is greater than the threshold (S).
IPC 1-7
IPC 8 full level
F02D 41/12 (2006.01); F02D 41/26 (2006.01)
CPC (source: EP US)
F02D 41/123 (2013.01 - EP US); F02D 41/26 (2013.01 - EP US)
Citation (examination)
- EP 0054112 A2 19820623 - BOSCH GMBH ROBERT [DE]
- US 4130095 A 19781219 - BOWLER LAUREN L, et al
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 0127510 A1 19841205; EP 0127510 B1 19871216; DE 3468133 D1 19880128; FR 2545878 A1 19841116; FR 2545878 B1 19870911; US 4558672 A 19851217
DOCDB simple family (application)
EP 84400898 A 19840503; DE 3468133 T 19840503; FR 8307971 A 19830513; US 60986384 A 19840514