FR2228642A1 - Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles - Google Patents

Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles

Info

Publication number
FR2228642A1
FR2228642A1 FR7316590A FR7316590A FR2228642A1 FR 2228642 A1 FR2228642 A1 FR 2228642A1 FR 7316590 A FR7316590 A FR 7316590A FR 7316590 A FR7316590 A FR 7316590A FR 2228642 A1 FR2228642 A1 FR 2228642A1
Authority
FR
France
Prior art keywords
slip device
wheel wear
detector
anti slip
independently driven
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.)
Withdrawn
Application number
FR7316590A
Other languages
French (fr)
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Priority to FR7316590A priority Critical patent/FR2228642A1/en
Publication of FR2228642A1 publication Critical patent/FR2228642A1/en
Withdrawn legal-status Critical Current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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1705—Braking or traction control means specially adapted for particular types of vehicles for rail vehicles
    • 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
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Abstract

Anti slip device prevents wheel slip on a rail and is not affected by small speed variations due to wheel wear. Normal detector methods cannot effectively handle this common possibility and this leads to difficulties at high speeds. The patent covers detectors, two per axle, a frequency detector (detecting axle speed) two frequency/voltage convertors, each fed by a detector and a comparison amplifier (giving positive or negative indication). These are combined with logic elements and switches to effect control. Schmitt bridges are used in the circuitry and minor speed differences (of the order of 0.6 kmph) are ignored.
FR7316590A 1973-05-08 1973-05-08 Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles Withdrawn FR2228642A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7316590A FR2228642A1 (en) 1973-05-08 1973-05-08 Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7316590A FR2228642A1 (en) 1973-05-08 1973-05-08 Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles

Publications (1)

Publication Number Publication Date
FR2228642A1 true FR2228642A1 (en) 1974-12-06

Family

ID=9118984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7316590A Withdrawn FR2228642A1 (en) 1973-05-08 1973-05-08 Anti slip device independent of wheel wear - has frequency detectors and is for independently driven railway axles

Country Status (1)

Country Link
FR (1) FR2228642A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004783A1 (en) * 1987-11-17 1989-06-01 Robert Bosch Gmbh Process for correcting the speed of rotation of vehicle wheels determined by wheel sensors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004783A1 (en) * 1987-11-17 1989-06-01 Robert Bosch Gmbh Process for correcting the speed of rotation of vehicle wheels determined by wheel sensors

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Legal Events

Date Code Title Description
ST Notification of lapse