Title:
車両の異常診断装置
Document Type and Number:
Japanese Patent JP4998542
Kind Code:
B2
Abstract:
A vehicular abnormality diagnosing apparatus that diagnoses an abnormality regarding a connection state of a pair of members that are mounted in a vehicle and connected together, includes a detecting portion that outputs, as an output signal, a first detection signal when the pair of members are in a normal connected state, and a second detection signal when the pair of members are in a state other than the normal connected state; a counting portion that counts at least one of the number of times that the output signal changes from the first detection signal to the second detection signal and the number of times that the output signal changes from the second detection signal to the first detection signal, as an output signal fluctuation count; and a determining portion that determines that there is an abnormality in the connection state when an abnormality determining condition including a condition that the output signal fluctuation count during a predetermined period be equal to or greater than a predetermined count is satisfied.
Inventors:
Keisuke Tsukamoto
Application Number:
JP2009289607A
Publication Date:
August 15, 2012
Filing Date:
December 21, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01M13/00; B60D1/62
Domestic Patent References:
| JP2001132427A | ||||
| JP4362233A | ||||
| JP2007113517A | ||||
| JP58038327A | ||||
| JP64027447U | ||||
| JP63205535A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda