JPS6441642A - Fail safe system operating during failure in operation of water temperature sensor - Google Patents
Fail safe system operating during failure in operation of water temperature sensorInfo
- Publication number
- JPS6441642A JPS6441642A JP62198736A JP19873687A JPS6441642A JP S6441642 A JPS6441642 A JP S6441642A JP 62198736 A JP62198736 A JP 62198736A JP 19873687 A JP19873687 A JP 19873687A JP S6441642 A JPS6441642 A JP S6441642A
- Authority
- JP
- Japan
- Prior art keywords
- starting
- temperature sensor
- water temperature
- fuel injection
- during
- 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
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To facilitate the starting of an engine, by a method wherein, during the starting of an engine when a failure in operation of a water temperature sensor is detected, a fuel injection amount is increased for correction based on a set value during starting, and a fuel injection amount is corrected based on a set value after starting. CONSTITUTION:In a device which controls a fuel injection valve 4 by means of a fuel injection amount computed based on output signals from various sensors containing a water temperature sensor 6, a trouble detecting means 13 to detect abnormality on the water temperature sensor 6 is provided. During detection of a failure in operation of the water temperature sensor, it is discriminated by an engine state discriminating means 14 whether an engine 1 state is during starting or after starting. When it is discriminated that the engine state is during starting, an input signal from the water temperature sensor 6 is switched to a set value during starting by means of a means 15 to correct during-starting, and a fuel injection amount is increased for correction by means of a set value during starting. Meanwhile, when it is discriminated that the engine state is after starting, a fuel injection amount is corrected in a similar manner described above by means of a set value after starting by using a means 16 to correct after starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62198736A JPS6441642A (en) | 1987-08-08 | 1987-08-08 | Fail safe system operating during failure in operation of water temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62198736A JPS6441642A (en) | 1987-08-08 | 1987-08-08 | Fail safe system operating during failure in operation of water temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6441642A true JPS6441642A (en) | 1989-02-13 |
Family
ID=16396127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62198736A Pending JPS6441642A (en) | 1987-08-08 | 1987-08-08 | Fail safe system operating during failure in operation of water temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6441642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022153775A1 (en) * | 2021-01-18 | 2022-07-21 | ヤンマーホールディングス株式会社 | Engine |
-
1987
- 1987-08-08 JP JP62198736A patent/JPS6441642A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022153775A1 (en) * | 2021-01-18 | 2022-07-21 | ヤンマーホールディングス株式会社 | Engine |
| JP2022110305A (en) * | 2021-01-18 | 2022-07-29 | ヤンマーホールディングス株式会社 | engine |
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