Title:
燃料噴射システムの故障部位判定装置
Document Type and Number:
Japanese Patent JP5348154
Kind Code:
B2
Abstract:
A defective-portion detector has a detecting portion which detects a variation in fuel pressure as a fuel pressure waveform based on a detection value of a fuel pressure sensor and a computing portion which computes, based on the fuel pressure waveform, a plurality of injection-rate parameters required for identifying an injection-rate waveform corresponding to the fuel pressure waveform. Further, the detector has a determining portion which determines whether each learning value of the injection-rate parameters is an abnormal value and an identifying portion which identifies a defective portion in the fuel injection system based on a combination of abnormal learning values which the determining portion has determined.
More Like This:
| WO/2003/026923 | MAINTENANCE ALERT SYSTEM FOR HEAVY-DUTY TRUCKS |
| JPH04298670 | ABNORMALITY DETECTING DEVICE FOR AUTOMOBILE |
| JP4065784 | Internal combustion engine control device |
Inventors:
Takashima Shoko
Application Number:
JP2011031018A
Publication Date:
November 20, 2013
Filing Date:
February 16, 2011
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D41/22; F02M55/02; F02M61/16; F02M63/00; F02M65/00
Domestic Patent References:
| JP10299557A | ||||
| JP2010138915A | ||||
| JP2011153610A | ||||
| JP2009057926A | ||||
| JP2011001917A |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Yasunari Kurita
Kyoko Hino
Satoru Ando
Hiroshi Matsuda
Yasunari Kurita
Kyoko Hino
Satoru Ando
Hiroshi Matsuda