EP 1030047 A3 20050601 - Fuel pressure control device and method for high pressure fuel injection system
Title (en)
Fuel pressure control device and method for high pressure fuel injection system
Title (de)
Krafstoffdrucksteuervorrichtung und Verfahren für ein Hochdruckkraftstoffeinspritzsystem
Title (fr)
Méthode et dispositif de commande de pression de carburant pour système d'injection de carburant à haute pression
Publication
Application
Priority
- JP 3546899 A 19990215
- JP 3547099 A 19990215
Abstract (en)
[origin: EP1030047A2] A fuel pressure control device and method for a high pressure fuel injection system serve to ensure good control and response characteristics irrespective of a transition state or a stationary state. Injectors (12) injecting a fuel into combustion chambers of cylinders (#1 to #4) of an engine (10) are connected to a common rail (20) and supplied with a high pressure fuel from the common rail (20). A fuel pump (30) pressurizes fuel in a fuel tank (14) to high pressure and force-feeds to the common rail (20). An ECU (60) sets closing timings of regulation valves (70a, 70b) of a fuel pump (30) based on predetermined control gains, thereby changing fuel force feed quantity and controlling fuel pressure within the common rail (20) to coincide with target fuel pressure. The ECU (60) variably sets the control gains based on the bulk modulus of the fuel calculated based on the pressure and temperature of the fuel within the common rail (20). <IMAGE>
IPC 1-7
IPC 8 full level
F02D 41/38 (2006.01)
CPC (source: EP)
F02D 41/3827 (2013.01); F02D 41/3845 (2013.01); F02D 41/408 (2013.01); F02D 2041/1422 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/0606 (2013.01); F02D 2250/31 (2013.01)
Citation (search report)
- [XY] US 5720262 A 19980224 - ANTONIOLI PIERPAOLO [IT], et al
- [Y] EP 0501459 A2 19920902 - NIPPON DENSO CO [JP]
- [X] GB 2327777 A 19990203 - BOSCH GMBH ROBERT [DE]
- [A] EP 0860601 A2 19980826 - TOYOTA MOTOR CO LTD [JP]
- [A] US 5337718 A 19940816 - TUCKEY CHARLES H [US]
- [XD] PATENT ABSTRACTS OF JAPAN vol. 017, no. 465 (M - 1468) 25 August 1993 (1993-08-25)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) & US 5906188 A 19990525 - NAKAMURA SADAO [JP], et al
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 1030047 A2 20000823; EP 1030047 A3 20050601; EP 1030047 B1 20101117; DE 60045229 D1 20101230
DOCDB simple family (application)
EP 00100737 A 20000114; DE 60045229 T 20000114