EP 0965741 A2 19991222 - Method and device for controlling the idle speed of an engine
Title (en)
Method and device for controlling the idle speed of an engine
Title (de)
Verfahren und Vorrichtung zur steuerung der Leerlauf-Drehzahl einer Brennkraftmaschine
Title (fr)
procédé et dispositif de commande du régime ralenti d'un moteur a combustion interne
Publication
Application
Priority
IT MI981409 A 19980619
Abstract (en)
A method and an apparatus for controlling the idle operating conditions of an internal-combustion engine of a motor vehicle, upon variation in the power drawn from the voltage generator (W4) by the electric circuit (L-BA). The running speed of the engine is detected by a logic control unit (ME), for example a microcontroller, in relation to the frequency of the generator voltage within a predefined running speed range; by the same logic control unit (ME) the connected or disconnected state of the alternating-current electric load (L) of the vehicle is detected and, depending on the information received regarding the connected or disconnected state of the electric load (L) to the voltage generator (W4) and the running speed of the engine, the logic control unit (ME) causes activation or deactivation of an electronic control switch (SCR3 - figure 4) to connect the voltage generator (W4) to earth. <IMAGE>
IPC 1-7
IPC 8 full level
F02D 29/06 (2006.01); F02D 41/08 (2006.01); F02D 41/16 (2006.01)
CPC (source: EP)
F02D 41/083 (2013.01)
Designated contracting state (EPC)
AT DE ES FR IT SE
DOCDB simple family (publication)
EP 0965741 A2 19991222; EP 0965741 A3 20011205; AR 018418 A1 20011114; BR 9902385 A 20000801; CN 1094560 C 20021120; CN 1239755 A 19991229; IT 1301760 B1 20000707; IT MI981409 A1 19991219; JP 2000027691 A 20000125
DOCDB simple family (application)
EP 99107971 A 19990422; AR P990102557 A 19990528; BR 9902385 A 19990618; CN 99108352 A 19990610; IT MI981409 A 19980619; JP 17179399 A 19990618