ES408409A1 - Electrical circuitry for providing a measure of frequency of a cyclically-varying input signal - Google Patents

Electrical circuitry for providing a measure of frequency of a cyclically-varying input signal

Info

Publication number
ES408409A1
ES408409A1 ES408409A ES408409A ES408409A1 ES 408409 A1 ES408409 A1 ES 408409A1 ES 408409 A ES408409 A ES 408409A ES 408409 A ES408409 A ES 408409A ES 408409 A1 ES408409 A1 ES 408409A1
Authority
ES
Spain
Prior art keywords
frequency
voltage
capacitor
proportional
cyclically
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.)
Expired
Application number
ES408409A
Other languages
Spanish (es)
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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Publication of ES408409A1 publication Critical patent/ES408409A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/06—Demodulating pulses which have been modulated with a continuously-variable signal of frequency- or rate-modulated pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Electronic Switches (AREA)
  • Manipulation Of Pulses (AREA)
  • Amplifiers (AREA)

Abstract

Improvements in frequency-voltage converters, especially for protection devices against vehicle blocking or skidding, where a frequency generator driven by a rotating body delivers an alternating or pulsed voltage whose frequency is proportional to the number of revolutions of the rotating body, and where in addition pulses of constant duration are periodically transmitted with this frequency to a capacitor-resistance element, so that the average voltage in said capacitor is proportional to the generator frequency, characterized in that the voltage in the capacitor is transmitted at certain moments The scanning power, through a switch, to an electrical accumulator device, and this voltage, or a voltage proportional to it, then appears at the output of the accumulator device and remains there until the next scanning instant. (Machine-translation by Google Translate, not legally binding)
ES408409A 1971-11-10 1972-11-09 Electrical circuitry for providing a measure of frequency of a cyclically-varying input signal Expired ES408409A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712155839 DE2155839C3 (en) 1971-11-10 1971-11-10 Frequency-voltage converter, in particular for anti-lock and anti-skid devices in vehicles

Publications (1)

Publication Number Publication Date
ES408409A1 true ES408409A1 (en) 1975-10-01

Family

ID=5824718

Family Applications (1)

Application Number Title Priority Date Filing Date
ES408409A Expired ES408409A1 (en) 1971-11-10 1972-11-09 Electrical circuitry for providing a measure of frequency of a cyclically-varying input signal

Country Status (13)

Country Link
AT (1) AT322681B (en)
CH (1) CH551014A (en)
DD (1) DD99668A5 (en)
DE (1) DE2155839C3 (en)
ES (1) ES408409A1 (en)
FI (1) FI58218C (en)
FR (1) FR2160127A5 (en)
GB (1) GB1401482A (en)
HU (1) HU167619B (en)
IT (1) IT966834B (en)
RO (1) RO68912A (en)
SE (1) SE386412B (en)
SU (1) SU545273A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314016A1 (en) * 1973-03-21 1974-10-03 Bosch Gmbh Robert FREQUENCY-VOLTAGE CONVERTER FOR AN ANTI-LOCK CONTROL SYSTEM
US4039227A (en) * 1976-04-16 1977-08-02 Kelsey-Hayes Company Skid control system having a switched low speed noise filter
US4204157A (en) * 1978-05-12 1980-05-20 Motorola, Inc. Periodic engine speed monitoring circit utilizing sampling circuitry
US4243940A (en) * 1978-12-07 1981-01-06 Goodyear Aerospace Corporation AC to DC converter for antiskid systems
DE3242565C1 (en) * 1982-11-18 1984-04-26 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Circuit arrangement for analog evaluation of the signals transmitted by digital rotational speed sensors
DE3524597C1 (en) * 1985-07-10 1986-11-20 Daimler-Benz Ag, 7000 Stuttgart Frequency/voltage converter

Also Published As

Publication number Publication date
RO68912A (en) 1981-08-17
IT966834B (en) 1974-02-20
CH551014A (en) 1974-06-28
SE386412B (en) 1976-08-09
SU545273A3 (en) 1977-01-30
DE2155839B2 (en) 1974-03-28
DD99668A5 (en) 1973-08-12
GB1401482A (en) 1975-07-16
DE2155839C3 (en) 1974-10-31
FI58218B (en) 1980-08-29
HU167619B (en) 1975-11-28
FI58218C (en) 1980-12-10
AT322681B (en) 1975-06-10
DE2155839A1 (en) 1973-05-24
FR2160127A5 (en) 1973-06-22

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