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GB1277474A - Proving for vehicle wheel spin or slide correction apparatus - Google Patents

Proving for vehicle wheel spin or slide correction apparatus

Info

Publication number
GB1277474A
GB1277474A GB1914269A GB1914269A GB1277474A GB 1277474 A GB1277474 A GB 1277474A GB 1914269 A GB1914269 A GB 1914269A GB 1914269 A GB1914269 A GB 1914269A GB 1277474 A GB1277474 A GB 1277474A
Authority
GB
United Kingdom
Prior art keywords
capacitor
frequency
rate
change
signal
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
GB1914269A
Inventor
Peter Patrick Pike
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1914269A priority Critical patent/GB1277474A/en
Priority to AU13440/70A priority patent/AU1344070A/en
Priority to NL7004958A priority patent/NL7004958A/xx
Priority to DE19702016825 priority patent/DE2016825A1/en
Priority to CH552470A priority patent/CH521870A/en
Priority to FR7013322A priority patent/FR2039182B1/fr
Publication of GB1277474A publication Critical patent/GB1277474A/en
Expired legal-status Critical Current

Links

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
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/10—Indicating wheel slip ; Correction of wheel slip

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

1277474 Fluid-pressure brake control systems WESTINGHOUSE BRAKE & SIGNAL CO Ltd 19 March 1970 [15 April 1969] 19142/69 Heading F2F [Also in Division H3] Apparatus for correcting spin or slide of a vehicle wheel, in which the tractive or braking force is modified when a signal representing the rate of change of peripheral speed of a wheel exceeds a predetermined value, incorporates an arrangement for testing the proper operation of the apparatus, by applying thereto a signal from a circuit which includes an oscillator the output signal frequency of which can be caused to vary at either of two rates of change, one of which is above and one below the predetermined value. In the circuit shown, closure of switch SW1 produces oscillation by the alternate charging of capacitor C1 via diode D1 until the transistor VT1 conducts, and consequent discharge of the capacitor through the winding W1, which is coupled by secondary winding W2 to the apparatus under test. Upon opening switch SW1, the frequency of oscillation varies at a rate determined by the rate at which the transistor emitter voltage varies due to the discharge of capacitor C2 through resistor R5. Switch SW2, diode D2; and capacitor C3, permit the production of a different rate of change of frequency. If an increasing, rather than a decreasing, frequency is required, resistors R5 and R7 are connected instead between the switches SW1, SW2 and their respective capacitors C2 and C3.
GB1914269A 1969-04-15 1969-04-15 Proving for vehicle wheel spin or slide correction apparatus Expired GB1277474A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB1914269A GB1277474A (en) 1969-04-15 1969-04-15 Proving for vehicle wheel spin or slide correction apparatus
AU13440/70A AU1344070A (en) 1969-04-15 1970-04-06 Proving circuits for vehicle wheelspin or slide correction apparatus
NL7004958A NL7004958A (en) 1969-04-15 1970-04-07
DE19702016825 DE2016825A1 (en) 1969-04-15 1970-04-09 Circuit for checking the operation of a device for correcting the spinning and / or slipping of a vehicle wheel
CH552470A CH521870A (en) 1969-04-15 1970-04-14 Circuit arrangement for checking the operation of a device for correcting the spinning and / or slipping of at least one vehicle wheel
FR7013322A FR2039182B1 (en) 1969-04-15 1970-04-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1914269A GB1277474A (en) 1969-04-15 1969-04-15 Proving for vehicle wheel spin or slide correction apparatus

Publications (1)

Publication Number Publication Date
GB1277474A true GB1277474A (en) 1972-06-14

Family

ID=10124458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1914269A Expired GB1277474A (en) 1969-04-15 1969-04-15 Proving for vehicle wheel spin or slide correction apparatus

Country Status (6)

Country Link
AU (1) AU1344070A (en)
CH (1) CH521870A (en)
DE (1) DE2016825A1 (en)
FR (1) FR2039182B1 (en)
GB (1) GB1277474A (en)
NL (1) NL7004958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142596A (en) * 1983-06-15 1985-01-23 Blohm Voss Ag Stabilizing semi-submersible structures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2063944C3 (en) * 1970-12-28 1982-03-11 Teldix Gmbh, 6900 Heidelberg Circuit arrangement of an anti-lock vehicle brake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142596A (en) * 1983-06-15 1985-01-23 Blohm Voss Ag Stabilizing semi-submersible structures

Also Published As

Publication number Publication date
FR2039182A1 (en) 1971-01-15
NL7004958A (en) 1970-10-19
CH521870A (en) 1972-04-30
FR2039182B1 (en) 1974-05-24
DE2016825A1 (en) 1970-10-22
AU1344070A (en) 1971-10-07

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees