GB1143559A - - Google Patents

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Publication number
GB1143559A
GB1143559A GB1143559DA GB1143559A GB 1143559 A GB1143559 A GB 1143559A GB 1143559D A GB1143559D A GB 1143559DA GB 1143559 A GB1143559 A GB 1143559A
Authority
GB
United Kingdom
Prior art keywords
acceleration
wheel
pick
magnetizable
frequency
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.)
Active
Application number
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.)
Publication of GB1143559A publication Critical patent/GB1143559A/en
Active legal-status Critical Current

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Classifications

    • 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
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/16—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal
    • G01P15/165—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal for measuring angular accelerations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

1,143,559. Measuring acceleration electrically. WESTINGHOUSE BREMSEN UND APPARATEBAU G.m.b.H. April 24, 1968 (April 28, 1967], No.19368/68. Heading G1N. Acceleration responsive apparatus comprises a magnetizable strip relatively movable along a path with respect to a magnetizing device and a pick-up device, means for exciting the magnetizing device at a fixed frequency to produce an alternating magnetization along the length of the magnetizable strip, and means for comparing the frequency of the signal from the pick-up device with the frequency fed to the magnetizing device to produce an output signal if the frequencies differ by more than a predetermined amount due to acceleration. The invention is particularly useful for detecting skidding of the driving wheels of a railway locomotive, the magnetizable strip being arranged around the periphery of a driving wheel or a wheel driven in accordance with the driving wheel. As shown in Fig, 3, two pick-up devices 4', 4a are provided, one each side of the magnetizing device 3', one being selected for use depending on the direction of travel of the locomotive. A D.C. or high frequency A.C. wiping unit 2' is provided. The sensitivity of an amplifier 15 in the output circuit of the frequency discriminator 7' is controlled in dependence on the speed of the wheel 1' which is measured by a pick-up 20 co-operating with permanent magnets 19 on the wheel. The output of the amplifier 15 is fed to a regulating member 18 to reduce the output of the drive machine and to actuate a sand spraying device. The invention is responsive to negative as well as positive accelerations and may be used to monitor wheel slipping during braking. Other applications include measuring the acceleration of a vehicle moving on magnetizable rails and measuring the acceleration of a magnetizable tape.
GB1143559D 1967-04-28 Active GB1143559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0043877 1967-04-28

Publications (1)

Publication Number Publication Date
GB1143559A true GB1143559A (en)

Family

ID=7603833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1143559D Active GB1143559A (en) 1967-04-28

Country Status (2)

Country Link
DE (1) DE1673448A1 (en)
GB (1) GB1143559A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2606845B2 (en) * 1976-02-20 1980-01-10 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Device for monitoring the movement of the wheel of a vehicle

Also Published As

Publication number Publication date
DE1673448A1 (en) 1971-06-16

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