Title:
インジェクタ状態検出装置
Document Type and Number:
Japanese Patent JP5472204
Kind Code:
B2
Abstract:
The detector (60) has an alternating-current (AC) supply-unit (62) for overlaying the AC to supplied direct-current (DC) such that an injector (11) provides overlaid current. An AC detection unit (63) detects the AC flowing through the injector. A state detection unit (65) detects lifting-height of a needle as a state of the injector based on the detected AC. A correction unit corrects the needle lifting-height based on an inductance of a solenoid coil (31), where the inductance is detected by an inductance detection unit based on resonance frequency.
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Inventors:
Yoshihiro Kida
Fukakawa Yasuhiro
Takehiko Kato
Sugimura Taro
Fukakawa Yasuhiro
Takehiko Kato
Sugimura Taro
Application Number:
JP2011118695A
Publication Date:
April 16, 2014
Filing Date:
May 27, 2011
Export Citation:
Assignee:
株式会社日本自動車部品総合研究所
株式会社デンソー
株式会社デンソー
International Classes:
F02M65/00; F02D41/20; F02M51/06
Domestic Patent References:
| JP2760072B2 | ||||
| JP10227250A | ||||
| JP11159422A | ||||
| JP2011004280A |
Attorney, Agent or Firm:
Akito Tashita
Katsuhiko Tateishi
Katsuhiko Tateishi