EP 0896145 A3 20000809 - Fuel injection control apparatus for accumulator type engine
Title (en)
Fuel injection control apparatus for accumulator type engine
Title (de)
Kraftstoffeinspritzungsteuergerät für eine Brennkraftmaschine mit Kraftstoffspeicherleitung
Title (fr)
Dispositif de commande d'injection de combustible pour moteur à combustion interne à accumulateur
Publication
Application
Priority
JP 20918397 A 19970804
Abstract (en)
[origin: EP0896145A2] A fuel injection control apparatus for an accumulator type engine (1) prevents occurrence of loud combustion noises due to excessively high fuel pressure in an accumulator pipe (4) at the time of start of the engine (1). Injectors (2) of a diesel engine (1) are connected to a common rail (4) provided commonly for all the cylinders (#1-#4). The common rail (4) is connected to a supply pump (6) by a supply pipe (5). A pressure control valve (10) for controlling the pressure of fuel ejected from the supply pump (6) is provided near an ejection portion (6a) of the supply pump (6). At the time of start of the engine (1) before the cylinders are discriminated, an electronic control unit (ECU) (51) normally executes the starting-time control of the pressure control valve (10). Even before the cylinder discrimination, the ECU (51) calculates a target fuel pressure and detects actual fuel pressure in the main routine. If the actual fuel pressure exceeds the target fuel pressure, the ECU 51 switches off the pressure control valve (10) even before the cylinder discrimination. Therefore, an excessively high fuel pressure is prevented. <IMAGE>
IPC 1-7
IPC 8 full level
F02D 41/06 (2006.01); F02D 41/38 (2006.01); F02M 37/00 (2006.01); F02M 47/02 (2006.01); F02M 59/20 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
F02D 41/062 (2013.01); F02D 41/065 (2013.01); F02D 41/3827 (2013.01); F02D 41/3836 (2013.01); F02D 41/3872 (2013.01); F02B 3/06 (2013.01); F02D 41/3845 (2013.01); F02D 41/3863 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/31 (2013.01)
Citation (search report)
- [XY] DE 3304605 A1 19830825 - STEYR DAIMLER PUCH AG [AT]
- [AY] EP 0681100 A2 19951108 - CUMMINS ENGINE CO INC [US]
- [A] GB 2290112 A 19951213 - FUJI HEAVY IND LTD [JP]
- [DA] PATENT ABSTRACTS OF JAPAN vol. 018, no. 569 (M - 1695) 31 October 1994 (1994-10-31)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0896145 A2 19990210; EP 0896145 A3 20000809; EP 0896145 B1 20040317; DE 69822380 D1 20040422; DE 69822380 T2 20050224; JP 3317202 B2 20020826; JP H1150881 A 19990223
DOCDB simple family (application)
EP 98114569 A 19980803; DE 69822380 T 19980803; JP 20918397 A 19970804