Title:
インジェクタ構成のための駆動回路及び診断方法
Document Type and Number:
Japanese Patent JP4550861
Kind Code:
B2
Abstract:
The invention relates to a drive circuit (20a) for an injector arrangement comprising a first fuel injector (12a) in parallel with a capacitive component. The drive circuit (20a) comprises: a selector means (SQ 1 , SQ 2 ) and diagnostic means (36a, 36b). The selector means (SQ 1 , SQ 2 ) is operable to select the first fuel injector (12a) and/or the capacitive component into the drive circuit and to deselect the first fuel injector (12a) and/or the capacitive component from the drive circuit (20a). When the capacitive component is selected and the first fuel injector (12a) is deselected, the diagnostic means (36a, 36b) is operable to sense a sensed current (I sense ) through the first fuel injector (12a). When the sensed current (I sense ) is at variance from a first threshold current (I limit ) the diagnostic means (36a, 36b) is operable to provide a first signal on detection of a stack terminal short circuit fault associated with the first fuel injector (12a). Preferably the capacitive component is a second fuel injector (12b).
Inventors:
Louisa Perryman
Martin A. Psychez
Martin A. Psychez
Application Number:
JP2007136142A
Publication Date:
September 22, 2010
Filing Date:
May 23, 2007
Export Citation:
Assignee:
Delphi Technologies Incorporated
International Classes:
F02M61/16; F02D41/20; F02D41/22; F02M51/00; F02M51/06; F02M63/00; F02M69/46
Domestic Patent References:
| JP2003299371A | ||||
| JP2000501473A | ||||
| JP2002252990A |
Foreign References:
| WO2004051066A1 | ||||
| DE10323491A1 | ||||
| WO2005028836A1 | ||||
| DE102004021377A1 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Toru Miyamae
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Toru Miyamae