JPS5740655A - Abnormality detector - Google Patents

Abnormality detector

Info

Publication number
JPS5740655A
JPS5740655A JP11750880A JP11750880A JPS5740655A JP S5740655 A JPS5740655 A JP S5740655A JP 11750880 A JP11750880 A JP 11750880A JP 11750880 A JP11750880 A JP 11750880A JP S5740655 A JPS5740655 A JP S5740655A
Authority
JP
Japan
Prior art keywords
pulse
constant
speed running
delivered
running apparatus
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
JP11750880A
Other languages
Japanese (ja)
Inventor
Masanori Honjo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11750880A priority Critical patent/JPS5740655A/en
Publication of JPS5740655A publication Critical patent/JPS5740655A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor

Abstract

PURPOSE:To reset a microcomputer to a normal operation state in a car constant- speed running apparatus controlled by the microcomputer, by forcedly applying a reset signal to the microcomputer when not operating normally owing to noises or other causes. CONSTITUTION:A one-shot multivibrator 2 operates with the rise of a signal a delivered from a constant-speed running apparatus 1 as a reference, to generate a pulse b. By means of the pulse obtained by differentiating 3 said pulse b, the gate of a gate circuit 4 is opened to make an integrating circuit 5 discharge so that an output of given level is delivered from a comparating circuit 6 to prevent the reset operation from acting on the constant-speed running apparatus 1. On the other hand, when no pulse is delivered from the constant-speed running apparatus 1 owing to some abnormality, or a pulse having a shorter or longer duration than a given pulse duration is delivered, the reverse operation to the above is performed. Consequently, the output of the comparating circuit 6 is below the given level, and a reset signal is sent to the constant-speed running apparatus 1 from the comparating circuit 6.
JP11750880A 1980-08-25 1980-08-25 Abnormality detector Pending JPS5740655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11750880A JPS5740655A (en) 1980-08-25 1980-08-25 Abnormality detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11750880A JPS5740655A (en) 1980-08-25 1980-08-25 Abnormality detector

Publications (1)

Publication Number Publication Date
JPS5740655A true JPS5740655A (en) 1982-03-06

Family

ID=14713487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11750880A Pending JPS5740655A (en) 1980-08-25 1980-08-25 Abnormality detector

Country Status (1)

Country Link
JP (1) JPS5740655A (en)

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