ES8106454A1 - Applying Ultrasonic Vibration to Friction Member - Google Patents

Applying Ultrasonic Vibration to Friction Member

Info

Publication number
ES8106454A1
ES8106454A1 ES495107A ES495107A ES8106454A1 ES 8106454 A1 ES8106454 A1 ES 8106454A1 ES 495107 A ES495107 A ES 495107A ES 495107 A ES495107 A ES 495107A ES 8106454 A1 ES8106454 A1 ES 8106454A1
Authority
ES
Spain
Prior art keywords
release
friction member
friction
operating
transducer
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
ES495107A
Other languages
Spanish (es)
Other versions
ES495107A0 (en
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.)
SECR TRANSPORTATION
Original Assignee
SECR TRANSPORTATION
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 SECR TRANSPORTATION filed Critical SECR TRANSPORTATION
Publication of ES495107A0 publication Critical patent/ES495107A0/en
Publication of ES8106454A1 publication Critical patent/ES8106454A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • 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
    • B60T8/1706—Braking or traction control means specially adapted for particular types of vehicles for single-track vehicles, e.g. motorcycles
    • 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
    • B60T8/56—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 having means for changing the coefficient of friction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2129/00—Type of operation source for auxiliary mechanisms
    • F16D2129/06—Electric or magnetic
    • F16D2129/12—Electrostrictive or magnetostrictive elements, e.g. piezoelectric

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)

Abstract

The invention is concerned with the rapid release of frictional force which is acting to reduce relative movement between contacting surfaces, the normal actuating means being unaffected. One application is in an anti-lock braking system in vehicles, particularly motor-cycles. A sensor 3 monitors wheel angular velocity and when this falls below a predetermined value the sensor causes ultrasonic vibrations to be applied to brake pads 2 effectively reducing friction without release of brake operating pressure to enable resumption of normal rotation. A short duration dc pulse of appreciable magnitude may be applied to the transducer at the onset of the normal input signal to produce a short duration surge to rapidly break the frictional force between the friction member and the moveable member to enhance speed of release. The transducer may also be applied directly to the end wall of a friction member hydraulic operating cylinder when ultrasonic vibrations will be transmitted through the operating fluid to the piston connected to the friction member. The end wall of the cylinder is of a suitable matching material to facilitate transmission of the ultrasonic energy and the piston is formed so as to minimise attenuation. The invention can also be applied to friction clutches operating in either rotary or linear senses to cause release when overloading or overspeed occurs or to give gradual engagement in accordance with a predetermined programme.
ES495107A 1979-01-30 1980-09-16 Applying Ultrasonic Vibration to Friction Member Expired ES8106454A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7903207 1979-01-30
GB7933380 1979-09-26

Publications (2)

Publication Number Publication Date
ES495107A0 ES495107A0 (en) 1981-07-16
ES8106454A1 true ES8106454A1 (en) 1981-07-16

Family

ID=26270387

Family Applications (2)

Application Number Title Priority Date Filing Date
ES488365A Granted ES488365A0 (en) 1979-01-30 1980-01-29 A FRICTION CONTROLLING DEVICE
ES495107A Expired ES8106454A1 (en) 1979-01-30 1980-09-16 Applying Ultrasonic Vibration to Friction Member

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES488365A Granted ES488365A0 (en) 1979-01-30 1980-01-29 A FRICTION CONTROLLING DEVICE

Country Status (6)

Country Link
CA (1) CA1154843A (en)
DE (1) DE3002416A1 (en)
ES (2) ES488365A0 (en)
FR (1) FR2447837A1 (en)
GB (1) GB2052655B (en)
IT (1) IT1146104B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200417A (en) * 1986-12-05 1988-08-03 Sec Dep For Transport The Ultrasonic anti-lock friction controllers
EP0342264A3 (en) * 1988-05-07 1990-11-28 Warner France Electrical clutch or breaking device
DE3842397A1 (en) * 1988-12-16 1990-06-21 Audi Ag Device for interrupting the adhesion between two components
DE19931081A1 (en) * 1999-07-06 2001-01-11 Bosch Gmbh Robert Method for varying the braking force of a vehicle brake and vehicle brake
US7364196B2 (en) * 2000-06-28 2008-04-29 Kabushiki Kaisha Bridgestone Vehicle control method and vehicle control apparatus
GB2547705A (en) * 2016-02-29 2017-08-30 Meggitt Aerospace Ltd Ultrasonic brake wear sensors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL163472C (en) * 1969-04-25 1980-04-15 Ulf Christer Ekenberg BRAKE FORCE CONTROL DEVICE FOR PREVENTING VEHICLE WHEEL BLOCKING WHEN BRAKING.
US3630578A (en) * 1969-06-23 1971-12-28 Goodyear Tire & Rubber Vibration suppressor for braked wheels
DE2111408A1 (en) * 1970-03-13 1971-09-30 Saab Scania Ab Brake control device for wheeled vehicles, especially for motor vehicles
US3698772A (en) * 1970-03-18 1972-10-17 Borg Warner Brake control system for pulsing vehicle brakes at variable pulse rates
DE2206545A1 (en) * 1972-02-11 1973-08-16 Pohlman Reimar PROCESS FOR CONTINUOUSLY REDUCING FRICTION FORCE
DE2262557A1 (en) * 1972-12-21 1974-06-27 Teldix Gmbh ARRANGEMENT TO AVOID SQUARE WHEN BRAKING VEHICLE WHEELS

Also Published As

Publication number Publication date
IT8047745A0 (en) 1980-01-29
GB2052655B (en) 1982-12-15
ES495107A0 (en) 1981-07-16
ES8102298A1 (en) 1980-12-16
DE3002416A1 (en) 1980-08-07
FR2447837B1 (en) 1983-10-21
FR2447837A1 (en) 1980-08-29
GB2052655A (en) 1981-01-28
ES488365A0 (en) 1980-12-16
CA1154843A (en) 1983-10-04
IT1146104B (en) 1986-11-12

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