JPS5694270A - Digital display type vehicle speedometer - Google Patents

Digital display type vehicle speedometer

Info

Publication number
JPS5694270A
JPS5694270A JP17060879A JP17060879A JPS5694270A JP S5694270 A JPS5694270 A JP S5694270A JP 17060879 A JP17060879 A JP 17060879A JP 17060879 A JP17060879 A JP 17060879A JP S5694270 A JPS5694270 A JP S5694270A
Authority
JP
Japan
Prior art keywords
vehicle speed
register
counter
gate
dispaly
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
JP17060879A
Other languages
Japanese (ja)
Other versions
JPH033183B2 (en
Inventor
Kunihisa Hayashi
Masakazu Moriyama
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP17060879A priority Critical patent/JPS5694270A/en
Priority to CA000367068A priority patent/CA1159534A/en
Priority to EP80304658A priority patent/EP0031703B2/en
Priority to DE8080304658T priority patent/DE3067594D1/en
Priority to US06/218,500 priority patent/US4368426A/en
Priority to AU65851/80A priority patent/AU538460B2/en
Publication of JPS5694270A publication Critical patent/JPS5694270A/en
Publication of JPH033183B2 publication Critical patent/JPH033183B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

PURPOSE: To eliminate extraneous feel for the display of time whtn a vehicle stops from a running state by forcefully making the content of a display register zero when the generation intervals of vehicle speed pulses exceed predetermined time.
CONSTITUTION: Vehicle speed pulses 100 are inputted to a vehicle speed counter 12 via an AND gate 10, and are counted only while the AND gate 10 is being opened by the gate signal 101 of a timing pulse generating circuit 20. After the gate signal 101 goes to 0, the latch signal 102 is outputted in a dispaly register 14, and the content of the dispaly register 14 is rewritten according to the output signal 107 of the vehicle speed counter 12 and is dispalyed 16. On the other hand, the vehicle speed pulses 100 and an initial value setting signal 104 are inputted as reset signals to a time counter 32, and when the clock pulses 106 counted by the time counter 32 exceed a set value, the ouput of a bistable multivibrator 34 is made 1, whereby the dispaly register 14 and the vehicle speed counter 12 are forcefully made 0.
COPYRIGHT: (C)1981,JPO&Japio
JP17060879A 1979-12-28 1979-12-28 Digital display type vehicle speedometer Granted JPS5694270A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP17060879A JPS5694270A (en) 1979-12-28 1979-12-28 Digital display type vehicle speedometer
CA000367068A CA1159534A (en) 1979-12-28 1980-12-18 Digital indication type speedometer
EP80304658A EP0031703B2 (en) 1979-12-28 1980-12-19 Digital indication type speedometer
DE8080304658T DE3067594D1 (en) 1979-12-28 1980-12-19 Digital indication type speedometer
US06/218,500 US4368426A (en) 1979-12-28 1980-12-22 Digital indication type speedometer
AU65851/80A AU538460B2 (en) 1979-12-28 1980-12-24 Digital speedometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17060879A JPS5694270A (en) 1979-12-28 1979-12-28 Digital display type vehicle speedometer

Publications (2)

Publication Number Publication Date
JPS5694270A true JPS5694270A (en) 1981-07-30
JPH033183B2 JPH033183B2 (en) 1991-01-17

Family

ID=15907998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17060879A Granted JPS5694270A (en) 1979-12-28 1979-12-28 Digital display type vehicle speedometer

Country Status (1)

Country Link
JP (1) JPS5694270A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035976A (en) * 1983-08-04 1985-02-23 Hitachi Ltd Speed detecting method
JPS61292065A (en) * 1985-06-19 1986-12-22 Tokico Ltd Measuring instrument for rotating speed of wheel
JPS623068U (en) * 1985-06-20 1987-01-09
JPH01131463A (en) * 1987-11-17 1989-05-24 Koko Res Kk Period detecting circuit
JP2000186949A (en) * 1998-12-21 2000-07-04 Ebara Corp Flow rate computing method for flow sensor
JP2012163408A (en) * 2011-02-04 2012-08-30 Yazaki Corp Vehicle speed detection method and vehicle data recording device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035976A (en) * 1983-08-04 1985-02-23 Hitachi Ltd Speed detecting method
JPH0337396B2 (en) * 1983-08-04 1991-06-05 Hitachi Ltd
JPS61292065A (en) * 1985-06-19 1986-12-22 Tokico Ltd Measuring instrument for rotating speed of wheel
JPS623068U (en) * 1985-06-20 1987-01-09
JPH01131463A (en) * 1987-11-17 1989-05-24 Koko Res Kk Period detecting circuit
JP2000186949A (en) * 1998-12-21 2000-07-04 Ebara Corp Flow rate computing method for flow sensor
JP2012163408A (en) * 2011-02-04 2012-08-30 Yazaki Corp Vehicle speed detection method and vehicle data recording device

Also Published As

Publication number Publication date
JPH033183B2 (en) 1991-01-17

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