Title:
ST SWITCH ABNORMALITY DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2009228504
Kind Code:
A
Abstract:
To provide an ST switch abnormality detection device capable of detecting an ON abnormality of the ST switch even while an engine is operated.
In a vehicle system, when the ST switch is turned ON for a first period when an IG switch is ON, an engine is started. In the ST switch abnormality detection device of the vehicle system, the ST switch is not turned ON for a second period from the time when the ST switch is turned ON for the first period to the time when the IG switch is turned OFF. The ST switch abnormality detection device includes an abnormality determination means for determining that the ON abnormality is generated on the ST switch when the ON of the ST switch is detected for the second period.
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Inventors:
ASAI TOSHIHARU
Application Number:
JP2008073096A
Publication Date:
October 08, 2009
Filing Date:
March 21, 2008
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D45/00
Domestic Patent References:
| JPH0681706A | 1994-03-22 |
Attorney, Agent or Firm:
Tadahiko Ito