GB919786A - Wheel slip brake control for wheeled vehicles - Google Patents

Wheel slip brake control for wheeled vehicles

Info

Publication number
GB919786A
GB919786A GB4358960A GB4358960A GB919786A GB 919786 A GB919786 A GB 919786A GB 4358960 A GB4358960 A GB 4358960A GB 4358960 A GB4358960 A GB 4358960A GB 919786 A GB919786 A GB 919786A
Authority
GB
United Kingdom
Prior art keywords
wheels
wheel
speed
brake
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.)
Expired
Application number
GB4358960A
Inventor
George William Eger
Philip Joseph Costa
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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
Priority to US842448A priority Critical patent/US3025722A/en
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to GB4358960A priority patent/GB919786A/en
Publication of GB919786A publication Critical patent/GB919786A/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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
    • 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
    • B60T8/34—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 a fluid pressure regulator responsive to a speed condition
    • B60T8/48—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 a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Regulating Braking Force (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

919,786. Fluid-pressure brakes. CATERPILLAR TRACTOR CO. Dec. 19, 1960, No. 43589/60. Class 103 (1). [Also in Group XL (c)] In a vehicle, e.g. an agricultural tractor, having a pair of ground-engaging wheels driven through differential gearing, a control device is provided in conjunction with separately-actuable brakes on the wheels which in response to a predetermined difference of speed of the wheels applies the brake of the faster wheel, so that should a wheel tend to spin, e.g. when on loose or wet earth, driving torque is maintained to the other wheel as a result of the application of the brake on the spinning wheel. As shown, wheels 17, 18 of a tractor are driven through half-shafts 15, 16 and a differential 14, and are provided with brakes 19, 20 operated by separate compressed air cylinders 37, 38. Air is supplied to the cylinders for normal braking by a driver control via conduits 41, and is also supplied automatically by solenoid valves 32, 33 controlled in response to said difference of speeds of the wheels, exhausting of air from the cylinders being effected by a pressure-sensitive relief valve when either supply is cut off. The speedresponsive control is effected by generators 22 driven by the respective wheels and having their outputs balanced by potentiometers 25, 26, as a result of which the bases and emitters of two transistors 27, 28 are maintained at the same voltage so long as the wheels are rotating at the same speed, so that the transistors do not conduct. When the speed of one wheel increases relative to that of the other wheel the corresponding transistor is made conducting and current flows via its collector to the appropriate one of two relays having contacts 29, 30. When the difference in speed of the two wheels is more than a predetermined amount this current is sufficient to operate the relay, which thereupon closes its contacts to supply current from a battery 31 to the appropriate solenoid valve 32 or 33 which applies the brake of the faster wheel.
GB4358960A 1959-09-25 1960-12-19 Wheel slip brake control for wheeled vehicles Expired GB919786A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US842448A US3025722A (en) 1959-09-25 1959-09-25 Wheel slip control for wheel-type tractors
GB4358960A GB919786A (en) 1960-12-19 1960-12-19 Wheel slip brake control for wheeled vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4358960A GB919786A (en) 1960-12-19 1960-12-19 Wheel slip brake control for wheeled vehicles

Publications (1)

Publication Number Publication Date
GB919786A true GB919786A (en) 1963-02-27

Family

ID=10429429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4358960A Expired GB919786A (en) 1959-09-25 1960-12-19 Wheel slip brake control for wheeled vehicles

Country Status (1)

Country Link
GB (1) GB919786A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519314A (en) * 1968-07-05 1970-07-07 Hurst Campbell Inc Mechano-hydraulic system for minimizing skidding
WO1997014592A1 (en) * 1995-10-17 1997-04-24 J.C. Bamford Excavators Limited Loader type vehicle with traction control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519314A (en) * 1968-07-05 1970-07-07 Hurst Campbell Inc Mechano-hydraulic system for minimizing skidding
WO1997014592A1 (en) * 1995-10-17 1997-04-24 J.C. Bamford Excavators Limited Loader type vehicle with traction control

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