JPS55110311A - Fault diagnostic unit for control circuit system - Google Patents

Fault diagnostic unit for control circuit system

Info

Publication number
JPS55110311A
JPS55110311A JP1808279A JP1808279A JPS55110311A JP S55110311 A JPS55110311 A JP S55110311A JP 1808279 A JP1808279 A JP 1808279A JP 1808279 A JP1808279 A JP 1808279A JP S55110311 A JPS55110311 A JP S55110311A
Authority
JP
Japan
Prior art keywords
signal
control circuit
fault
circuit system
modulator
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
Application number
JP1808279A
Other languages
Japanese (ja)
Inventor
Yasuji Omori
Masamitsu Sato
Ryoichi Tsuchiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP1808279A priority Critical patent/JPS55110311A/en
Priority to GB8027425A priority patent/GB2054173B/en
Priority to GB7924445A priority patent/GB2026705A/en
Priority to US06/058,376 priority patent/US4287505A/en
Priority to FR7918813A priority patent/FR2431403A1/en
Priority to DE2953932A priority patent/DE2953932C2/de
Priority to DE2929472A priority patent/DE2929472C2/en
Publication of JPS55110311A publication Critical patent/JPS55110311A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To make it possible to diagnose a fault of a control circuit system easily and rapidly with high precision by providing a modulator which modulates a detection signal by a modulated signal with a discrimination waveform for a fault diagnosis. CONSTITUTION:Wheel speed detector 1 sends wheel speed signal Vw to a control circuit through modulator 2. On diagnosis a fault of a control circuit system, control signal oscillator 8 generates modulated signal A by oscillating and modulator 2 modulates signal Vw on the basis of this signal A. Circuit 3 generates and sends a pair of control signals C and D to actuators 6 and 7. Signal A of oscillator 8 is sent to terminal (c) of J-KFF10 through inverter 9 to generate signal E from terminal (q) of FF10. Then, on OR circuit receives signals C-E to output discrimination waveform signal F. This signal F is sent to alarm unit 14 through filter circuit 13. As a result, once some fault occurs to the control circuit system, an alarm is given by alarm unit 14, so that the fault can immediately be noticed.
JP1808279A 1978-07-21 1979-02-19 Fault diagnostic unit for control circuit system Pending JPS55110311A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1808279A JPS55110311A (en) 1979-02-19 1979-02-19 Fault diagnostic unit for control circuit system
GB8027425A GB2054173B (en) 1978-07-21 1979-07-13 Trouble diagnosing device of a control system
GB7924445A GB2026705A (en) 1978-07-21 1979-07-13 Monitoring control circuit operation
US06/058,376 US4287505A (en) 1978-07-21 1979-07-17 Trouble diagnosing device of control circuit system
FR7918813A FR2431403A1 (en) 1978-07-21 1979-07-20 DEVICE FOR DETECTING OPERATING INCIDENTS IN A CONTROL SYSTEM
DE2953932A DE2953932C2 (en) 1978-07-21 1979-07-20
DE2929472A DE2929472C2 (en) 1978-07-21 1979-07-20 Monitoring device for a control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1808279A JPS55110311A (en) 1979-02-19 1979-02-19 Fault diagnostic unit for control circuit system

Publications (1)

Publication Number Publication Date
JPS55110311A true JPS55110311A (en) 1980-08-25

Family

ID=11961716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1808279A Pending JPS55110311A (en) 1978-07-21 1979-02-19 Fault diagnostic unit for control circuit system

Country Status (1)

Country Link
JP (1) JPS55110311A (en)

Similar Documents

Publication Publication Date Title
SE7701487L (en) TEMPERATURE MONITORING DEVICE
JPS55110311A (en) Fault diagnostic unit for control circuit system
FR2270117A1 (en) Road vehicle speed limiting device - counts pulses corresponding to vehicle speed and controls alarm
JPS5690220A (en) Abnormal oscillation diagnostic device
JPS5436453A (en) Pressure alarm device
JPS5523551A (en) Control unit diagnostic equipment
SU781723A1 (en) Pulse monitoring device
JPS5654520A (en) Abnormality diagnostic device of plant
SU579575A1 (en) Automatic warning device for ultrasonic flaw detector
JPS5583497A (en) Step-out detector for pulse motor
SU752222A1 (en) Relay control device
SU1225801A1 (en) Device for monitoring excess of permissible value of vehicle parameters
SU454687A1 (en) Pulse Frequency to Voltage Converter
SU994180A1 (en) Apparatus for monitoring resistance welding quality
SU573823A1 (en) Dc electronic relay
SU702485A1 (en) Phase detector
SU706826A2 (en) Parameter monitoring device
SU614979A1 (en) Excitation presetting arrangement for diesel-electric locomotive traction motor
SU803111A1 (en) Frequency-modulated signal quality detector
SU686140A1 (en) Phase detector
GB1496151A (en) Signal measuring apparatus
SU862370A1 (en) Acoustic retranslator
SU648998A1 (en) Registering arrangement
SU950928A1 (en) Spark-proof power supply source
SU880224A1 (en) Device for measuring electric pulse signals