JPS55140167A - Fault detector - Google Patents
Fault detectorInfo
- Publication number
- JPS55140167A JPS55140167A JP4744679A JP4744679A JPS55140167A JP S55140167 A JPS55140167 A JP S55140167A JP 4744679 A JP4744679 A JP 4744679A JP 4744679 A JP4744679 A JP 4744679A JP S55140167 A JPS55140167 A JP S55140167A
- Authority
- JP
- Japan
- Prior art keywords
- fault
- output
- signal
- controller
- diminished
- 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
Abstract
PURPOSE: To exactly detect the fault of a controller by a simple construction by providing a band-pass filter or a resonance circuit in which the output is diminished in response to the frequency variation of a signal emitted.
CONSTITUTION: When a fault occurs in an electronic controller 2, a signal S which has been generated therefrom lacks or its period is varied, and therefore the output from the band-pass filter 3 is diminished as compared with the case at the normal time. This diminution of the output is detected by an amplitude detecting circuit 4, and a fault noticing signal is emitted from a terminal 5. Accordingly, the fault of the controller can be detected immediately and exactly.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4744679A JPS55140167A (en) | 1979-04-18 | 1979-04-18 | Fault detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4744679A JPS55140167A (en) | 1979-04-18 | 1979-04-18 | Fault detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55140167A true JPS55140167A (en) | 1980-11-01 |
JPS6236182B2 JPS6236182B2 (en) | 1987-08-05 |
Family
ID=12775364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4744679A Granted JPS55140167A (en) | 1979-04-18 | 1979-04-18 | Fault detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55140167A (en) |
-
1979
- 1979-04-18 JP JP4744679A patent/JPS55140167A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6236182B2 (en) | 1987-08-05 |
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