EP 1316720 A1 20030604 - Common rail fuel injection system
Title (en)
Common rail fuel injection system
Title (de)
Common-Rail-Kraftstoffeinspritzsystem
Title (fr)
Système d'injection de carburant à rampe commune
Publication
Application
Priority
JP 2001363716 A 20011129
Abstract (en)
A common rail type fuel injection system improves detection accuracy of common rail pressure with an ECU (10) without increasing the failure rate of a common rail pressure sensor. Two common rail pressure sensors (S1,S2) are disposed in a common rail type fuel injection system. Characteristics standards of the two common rail pressure sensors (S1,S2) are divided into two or more parts. An actual common rail pressure Pc corresponding to a fuel injection pressure is calculated by averaging electric signals output by the common rail pressure sensors in the respective characteristics standards divided into the two or more parts. Thus, the detection accuracy of the actual common rail pressure Pc is improved without increasing the failure rate of the common rail pressure sensor, and variations in injection quantity of fuel injected from injectors of respective cylinders are reduced. <IMAGE>
IPC 1-7
IPC 8 full level
F02D 41/22 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01); F02D 45/00 (2006.01); F02M 47/00 (2006.01); F02M 55/02 (2006.01); F02M 63/02 (2006.01); G01L 23/18 (2006.01)
CPC (source: EP)
F02D 41/222 (2013.01); F02D 41/3836 (2013.01); F02M 63/0225 (2013.01); F02D 2041/223 (2013.01); F02D 2200/0602 (2013.01); F02D 2200/0604 (2013.01); F02D 2400/08 (2013.01); F02M 55/025 (2013.01); F02M 2200/247 (2013.01)
Citation (search report)
- [X] DE 19626537 C1 19970918 - DAIMLER BENZ AG [DE]
- [A] US 5433182 A 19950718 - AUGUSTIN ULRICH [DE], et al
- [A] DE 10003906 A1 20010809 - BOSCH GMBH ROBERT [DE]
- [X] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1316720 A1 20030604; EP 1316720 B1 20070110; DE 60217460 D1 20070222; DE 60217460 T2 20071011; JP 2003161225 A 20030606; JP 4022853 B2 20071219
DOCDB simple family (application)
EP 02026591 A 20021128; DE 60217460 T 20021128; JP 2001363716 A 20011129