JPH0383845U - - Google Patents
Info
- Publication number
- JPH0383845U JPH0383845U JP14419189U JP14419189U JPH0383845U JP H0383845 U JPH0383845 U JP H0383845U JP 14419189 U JP14419189 U JP 14419189U JP 14419189 U JP14419189 U JP 14419189U JP H0383845 U JPH0383845 U JP H0383845U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- detection means
- oil pressure
- failure
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 239000010705 motor oil Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 claims 2
- 238000004092 self-diagnosis Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Engines (AREA)
Description
第１図は本考案の構成を説明するブロツク図、
第２図は本考案の一実施例を示す回路構成図、第
３図は充電系及びエンジン油圧系の両動作状態を
エンジン回転状態判定条件としてエンジン電子制
御装置の故障検出を行う際の故障検出パターンを
示す図である。
１……充電電圧検出スイツチ、３……油圧スイ
ツチ、５……エンジン電子制御装置、６……故障
表示ランプ、７……バツテリ、８……キースイツ
チ、９……コントロールユニツト、１１……デイ
スプレイ、１４……故障表示部、ａ，ｂ，ｃ……
入力端子。
Figure 1 is a block diagram explaining the configuration of the present invention.
Fig. 2 is a circuit configuration diagram showing an embodiment of the present invention, and Fig. 3 is a failure detection method when detecting a failure in the engine electronic control unit using the operating states of both the charging system and the engine oil pressure system as conditions for determining the engine rotation state. It is a figure showing a pattern. DESCRIPTION OF SYMBOLS 1... Charging voltage detection switch, 3... Oil pressure switch, 5... Engine electronic control device, 6... Failure indicator lamp, 7... Battery, 8... Key switch, 9... Control unit, 11... Display, 14...Fault display section, a, b, c...
Input terminal.
Claims (1)
る各検出手段からの電気信号に基づいて前記各項
目の故障の有無を診断する車両の故障診断装置で
あつて、エンジンの回転又は非回転の判断が必要
とされる項目の診断を行うものにおいて、エンジ
ン油圧系の油圧を検出するエンジン油圧検出手段
と、エンジン充電系の充電電圧を検出する充電電
圧検出手段と、前記両検出手段の検出信号に基づ
いてエンジンが回転状態か非回転状態かの判定を
行うエンジン状態判定手段と、該エンジン状態判
定手段の判定結果とエンジン電子制御装置自身か
ら出力される当該装置の自己診断信号とに基づい
てエンジン電子制御装置から出力された自己診断
信号の正否を判定する故障判定手段と、該故障判
定手段の判定結果を表示する表示手段とを備えて
構成したことを特徴とする車両の故障診断装置。 A vehicle failure diagnosis device that diagnoses the presence or absence of a failure in each of the diagnostic items based on electrical signals from each detection means that detects the operating state of each diagnostic item of the vehicle, and which determines whether the engine is rotating or not. In the device for diagnosing required items, an engine oil pressure detection means for detecting the oil pressure of the engine oil pressure system, a charging voltage detection means for detecting the charging voltage of the engine charging system, and based on the detection signals of both said detection means. an engine state determining means for determining whether the engine is in a rotating state or a non-rotating state; What is claimed is: 1. A vehicle failure diagnosis device comprising: failure determination means for determining whether a self-diagnosis signal output from a control device is correct; and display means for displaying a determination result of the failure determination means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14419189U JPH0723721Y2 (en) | 1989-12-15 | 1989-12-15 | Vehicle failure diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14419189U JPH0723721Y2 (en) | 1989-12-15 | 1989-12-15 | Vehicle failure diagnosis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0383845U true JPH0383845U (en) | 1991-08-26 |
| JPH0723721Y2 JPH0723721Y2 (en) | 1995-05-31 |
Family
ID=31690921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14419189U Expired - Lifetime JPH0723721Y2 (en) | 1989-12-15 | 1989-12-15 | Vehicle failure diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723721Y2 (en) |
-
1989
- 1989-12-15 JP JP14419189U patent/JPH0723721Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723721Y2 (en) | 1995-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |