JPS648652U - - Google Patents
Info
- Publication number
- JPS648652U JPS648652U JP10180087U JP10180087U JPS648652U JP S648652 U JPS648652 U JP S648652U JP 10180087 U JP10180087 U JP 10180087U JP 10180087 U JP10180087 U JP 10180087U JP S648652 U JPS648652 U JP S648652U
- Authority
- JP
- Japan
- Prior art keywords
- data
- rewriting
- acceleration
- control system
- volatile memory
- 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.)
- Pending
Links
- 230000001133 acceleration Effects 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Testing Of Engines (AREA)
Description
第１図は本考案に係るエンジン制御系の診断装
置の基本的構成を示すクレーム対応図、第２図は
本考案に係るエンジン制御系の診断装置の構成例
を示すブロツク図、第３図は第２図に示すＣＰＵ
の作動を示すフローチヤート、第４図は従来のエ
ンジン制御系の構成例を示すブロツク図である。
３３……ＣＰＵ（異常検出手段、データ書換手
段、書込禁止手段）、４５……加速度センサ（衝
突検出手段）、５１……ＲＡＭ（揮発性メモリ）
、５２……ＲＯＭ（不揮発性メモリ）。
FIG. 1 is a claim correspondence diagram showing the basic configuration of the engine control system diagnostic device according to the present invention, FIG. 2 is a block diagram showing an example of the configuration of the engine control system diagnostic device according to the present invention, and FIG. CPU shown in Figure 2
FIG. 4 is a block diagram showing an example of the configuration of a conventional engine control system. 33...CPU (abnormality detection means, data rewriting means, write prohibition means), 45...Acceleration sensor (collision detection means), 51...RAM (volatile memory)
, 52...ROM (non-volatile memory).
Claims (1)
力信号を順次記憶する揮発性メモリと、制御手段
の入出力信号の信号レベルに基づきエンジン制御
系の異常を検出する異常検出手段と、車両のマイ
ナス加速度が所定値を越えた時に出力する加速度
判別手段とを備えるとともに、異常検出手段およ
び加速度判別手段のいずれか一方の出力があつた
ときに揮発性メモリのデータを不揮発性メモリに
書換えるデータ書換手段を備え、かつ加速度判別
手段の出力に基づくデータ書換えがなされた後は
不揮発性メモリへのデータ書換えを禁止させる書
換禁止手段を備えることを特徴とするエンジン制
御系の診断装置。 a volatile memory that sequentially stores input and output signals of the control means that determine the control amount of the controlled object; an abnormality detection means that detects an abnormality in the engine control system based on the signal level of the input and output signals of the control means; and an acceleration determination means that outputs when the negative acceleration exceeds a predetermined value, and data that rewrites the data in the volatile memory to the nonvolatile memory when either the abnormality detection means or the acceleration determination means outputs. A diagnostic device for an engine control system, comprising a rewriting means and a rewriting inhibiting means for prohibiting data rewriting to a nonvolatile memory after data has been rewritten based on the output of the acceleration determining means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10180087U JPS648652U (en) | 1987-07-03 | 1987-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10180087U JPS648652U (en) | 1987-07-03 | 1987-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648652U true JPS648652U (en) | 1989-01-18 |
Family
ID=31331124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10180087U Pending JPS648652U (en) | 1987-07-03 | 1987-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3002053U (en) * | 1994-03-15 | 1994-09-13 | 宗博 三浦 | Exhaust heat induction tube of automobile |
-
1987
- 1987-07-03 JP JP10180087U patent/JPS648652U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3002053U (en) * | 1994-03-15 | 1994-09-13 | 宗博 三浦 | Exhaust heat induction tube of automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02132556U (en) | ||
| JPH02133196U (en) | ||
| JPS62146295U (en) | ||
| JPS62160317U (en) | ||
| JPS6370019U (en) | ||
| JPS636600U (en) | ||
| JPH032720U (en) | ||
| JPH0734961A (en) | Vehicle data storage device and method thereof | |
| JPS5854703U (en) | Controller input selection device | |
| JPS60100221U (en) | Steering operation detection device | |
| JPS6074061U (en) | Yaw angular acceleration and lateral acceleration detection device | |
| JPS6266443U (en) | ||
| JPS6451841U (en) | ||
| JPS6320206U (en) | ||
| JPH0224669U (en) | ||
| JPS6440730U (en) | ||
| JPS63122808U (en) | ||
| JPS62187345U (en) | ||
| JPH0455647U (en) | ||
| JPS62122952U (en) | ||
| JPS63101812U (en) | ||
| JPS6270024U (en) | ||
| JPH01106907U (en) | ||
| JPH0285658U (en) | ||
| JPH0250779U (en) |