Title:
スロットル診断装置
Document Type and Number:
Japanese Patent JP6504045
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a throttle diagnosis device capable of preventing in advance an erroneous diagnosis caused by freezing in the case of abnormal state diagnosis of a throttle driving device against its biasing member.SOLUTION: A throttle diagnosis device 50 performs an abnormal state diagnosis for a biasing member 30 on the basis of time required for a throttle valve 20 to change from its operating position to a diagnosing position by a biasing member after ignition-off state. This throttle diagnosis device 50 stores an opening or closing operation of the throttle valve 20 performed by a driving part 65 after an ignition-on state and judges whether or not the abnormal state diagnosis is carried out on the basis of the stored times of the opening or closing operations after an ignition-off state.SELECTED DRAWING: Figure 1
Inventors:
Seiichiro Nishikawa
Application Number:
JP2015251868A
Publication Date:
April 24, 2019
Filing Date:
December 24, 2015
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D11/10; F02D9/02; F02D41/22
Domestic Patent References:
| JP2011007115A | ||||
| JP11190230A | ||||
| JP2007218089A | ||||
| JP11229943A |
Foreign References:
| US20050120999 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita