JPS5585217A - Detecting device for rotation angle of engine - Google Patents

Detecting device for rotation angle of engine

Info

Publication number
JPS5585217A
JPS5585217A JP11935878A JP11935878A JPS5585217A JP S5585217 A JPS5585217 A JP S5585217A JP 11935878 A JP11935878 A JP 11935878A JP 11935878 A JP11935878 A JP 11935878A JP S5585217 A JPS5585217 A JP S5585217A
Authority
JP
Japan
Prior art keywords
time
output
engine
flip
pickup
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
Application number
JP11935878A
Other languages
Japanese (ja)
Other versions
JPS6140049B2 (en
Inventor
Takao Sasayama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11935878A priority Critical patent/JPS5585217A/en
Publication of JPS5585217A publication Critical patent/JPS5585217A/en
Publication of JPS6140049B2 publication Critical patent/JPS6140049B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To improve the precision of detection by counting and storing the period of a signal emitted every time a fixed number rotation is completed, by comparing the upper level value with the lower level value, and by using an interporating pulse produced every time both the values agree with each other.
CONSTITUTION: The arrival of a tooth of the toothed rotor 1 coupled with the shaft of the engine 8 is detected by the pickup 2. The flip-flop 3 operates every time a signal is received from the pickup, and provides a high level output for the signalless time and a low level one when the signal comes. The output of flip-flop gates outputs of the clock generator 4 and feeds a clock pulse of the counter 5, which counts the number of clock pulses for the time interval between the arrivals of teeth, the upper bits are recorded in the register 6. The content of the register 6 and the lower bits of the counter 5 are compared with each other in the comparator 7, and an output is produced to perform the interpolation when both the contents agree with each other.
COPYRIGHT: (C)1980,JPO&Japio
JP11935878A 1978-09-29 1978-09-29 Detecting device for rotation angle of engine Granted JPS5585217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11935878A JPS5585217A (en) 1978-09-29 1978-09-29 Detecting device for rotation angle of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11935878A JPS5585217A (en) 1978-09-29 1978-09-29 Detecting device for rotation angle of engine

Publications (2)

Publication Number Publication Date
JPS5585217A true JPS5585217A (en) 1980-06-27
JPS6140049B2 JPS6140049B2 (en) 1986-09-06

Family

ID=14759506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11935878A Granted JPS5585217A (en) 1978-09-29 1978-09-29 Detecting device for rotation angle of engine

Country Status (1)

Country Link
JP (1) JPS5585217A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880515A (en) * 1981-11-06 1983-05-14 Mitsubishi Electric Corp Resolution improving circuit for angle signal
JPH01320424A (en) * 1988-05-06 1989-12-26 Heidelberger Druckmas Ag Apparatus for detecting position of mobile machine element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880515A (en) * 1981-11-06 1983-05-14 Mitsubishi Electric Corp Resolution improving circuit for angle signal
JPH01320424A (en) * 1988-05-06 1989-12-26 Heidelberger Druckmas Ag Apparatus for detecting position of mobile machine element

Also Published As

Publication number Publication date
JPS6140049B2 (en) 1986-09-06

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