Vehicle diagnostic method, and external diagnostic device

US9047718B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9047718-B2
Application numberUS-201214353060-A
CountryUS
Kind codeB2
Filing dateJun 6, 2012
Priority dateOct 28, 2011
Publication dateJun 2, 2015
Grant dateJun 2, 2015

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Abstract

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In a vehicle diagnostic method and an external diagnostic device, sensor detection values acquired by communicating with an ECU are measured to determine whether the values are in a normal range while a vehicle is idling. After an engine is started, an operation to measure soundness is prohibited at least until the sensor detection values including the engine rotational frequency reach a threshold value region indicating the completion of the warm-up operation. The fluctuation state of the sensor detection values is displayed on an operation screen until the sensor detection values reach the threshold value region.

First claim

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The invention claimed is: 1. A vehicle diagnostic method for diagnosing a vehicle by an external diagnostic apparatus acquiring detected sensor values of the vehicle from the vehicle via data communication between an electronic control unit mounted on the vehicle and the external diagnostic apparatus, wherein the detected sensor values include an engine rotational speed; and the external diagnostic apparatus carries out: an idling confirming step of measuring whether or not the…

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What does patent US9047718B2 cover?
In a vehicle diagnostic method and an external diagnostic device, sensor detection values acquired by communicating with an ECU are measured to determine whether the values are in a normal range while a vehicle is idling. After an engine is started, an operation to measure soundness is prohibited at least until the sensor detection values including the engine rotational frequency reach a thresh…
Who is the assignee on this patent?
Kakinuma Hiroyuki, Ito Sakae, Honda Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification G07C5/0808. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).