EP 0406246 B1 19920122 - PROCESS FOR PREVENTING AN EXCESSIVE ENGINE DRAG TORQUE
Title (en)
PROCESS FOR PREVENTING AN EXCESSIVE ENGINE DRAG TORQUE
Publication
Application
Priority
DE 3808692 A 19880316
Abstract (en)
[origin: WO8908776A1] In an process for preventing an excessive engine drag torque in road vehicles, a quantity of fuel slightly less than the no-load quantity and which decreases gradually with time is supplied to the engine after the accelerator pedal is released. The resultant change in engine speed is monitored. When a given change in engine speed per unit time is exceeded, the quantity of fuel is gradually increased until a given positive change in engine speed is detected, after which the quantity of fuel is gradually decreased again. The process is repeated until the engine attains a constant-speed operating mode.
IPC 1-7
IPC 8 full level
F02D 41/12 (2006.01)
CPC (source: EP US)
F02D 41/12 (2013.01 - EP US); F02D 41/126 (2013.01 - EP US)
Citation (examination)
Patent Abstracts of Japan, vol.7, no.261 (M-257)(1406), 19.11.1983
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 8908776 A1 19890921; DE 3808692 A1 19891005; DE 58900775 D1 19920305; EP 0406246 A1 19910109; EP 0406246 B1 19920122; JP H03503077 A 19910711; US 5113820 A 19920519
DOCDB simple family (application)
EP 8900090 W 19890202; DE 3808692 A 19880316; DE 58900775 T 19890202; EP 89901856 A 19890202; JP 50171789 A 19890202; US 57302890 A 19900828