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GB2245669A - Vehicle parking brake - Google Patents

Vehicle parking brake Download PDF

Info

Publication number
GB2245669A
GB2245669A GB9019313A GB9019313A GB2245669A GB 2245669 A GB2245669 A GB 2245669A GB 9019313 A GB9019313 A GB 9019313A GB 9019313 A GB9019313 A GB 9019313A GB 2245669 A GB2245669 A GB 2245669A
Authority
GB
United Kingdom
Prior art keywords
parking brake
vehicle
brake
servo motor
ignition
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Withdrawn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
GB9019313A
Other versions
GB9019313D0 (en
Inventor
Clive S M Fisk
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9019313D0 publication Critical patent/GB9019313D0/en
Publication of GB2245669A publication Critical patent/GB2245669A/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Withdrawn legal-status Critical Current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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement

Landscapes

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

Abstract

A vehicle parking brake is automatically applied when the vehicle is stationary and is released by sensors which detect motion of the drive shaft (5). The brakes are applied by a servo motor (1) when the shaft is stationary. An overriding button when the ignition is "on" allows the vehicle to free-wheel if required. The brake cannot be released when the ignition key is removed. The servo motor either tensions brake cables or in a hydraulic system operates a piston of a master cylinder. <IMAGE>

Description

PATENT OF VEHICLE/AUTOMOBILE PARKING BRAKE FEATURES The conventional manually operated parking brake either hand or foot operated is replaced with an electrically operated servo motor that tensions the brake cables in the conventional method where it is felt desirable to retain a secondary braking system to the hydraulic system. The arresting brake is automatically applied whenever the vehicle comes to a standstill. In a hydraulics only braking system the servo motor operates the brake master cylinder pressurising the hydraulic fluid thereby activating the brakes.
DESCRIPTION Servo Motor: The unit retains a charge sufficient to operate for an extended period should power be disconected or the battery removed. To activate the parking brake, the motor operates a piston which extends, tensioning the brake cables in a cable system. In an hydraulic system the motor operates the piston which pressurises the master cylinder.
METHOD OF ACTIVATION.
Various sensors activate the system.
Operation Mode 1: With the ignition on.
The system is activated "on" at all times that the vehicle is stationary. Drive power when sensed from the drive shaft sensors activate the system "off". To free Wheel in neutral an overriding push switch will activate the system "off". The push switch is illuminated when in the "on" position Static Mode 2: With the ignition off.
Turning the ignition off does not turn the system off". The power to the braking system is redirected to the charged servo motor. The illuminated push switch will remain on for 30 seconds.
The parking brake system can only be set to "operation mode" by inserting the ignition key therefore acting as an additional anti theft device.
Definition "off": Parking brake released "on" : Parking brake on

Claims (1)

  1. CLAIMS VEHICLE/AUTOMOBILE PARKING BRAKE.
    I claim the invention of an automatic parking brake for any motorised moving vehicle or object.
    In place of the conventional hand operated or foot operated parking brake, a servo motor applies the brakes when sensors detect that the vehicle or object is in a stationary position.
    The servo motor automatically releases the brakes when it senses that drive power is detected from the engine.
    The brake can also be overridden to enable the vehicle or object to free wheel by a manual switch.
    The servo assisted parking brake system cannot be released unless the ignition key is in the ignition switch.
GB9019313A 1990-06-30 1990-09-04 Vehicle parking brake Withdrawn GB2245669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909014599A GB9014599D0 (en) 1990-06-30 1990-06-30 Automobile hand brake

Publications (2)

Publication Number Publication Date
GB9019313D0 GB9019313D0 (en) 1990-10-17
GB2245669A true GB2245669A (en) 1992-01-08

Family

ID=10678493

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909014599A Pending GB9014599D0 (en) 1990-06-30 1990-06-30 Automobile hand brake
GB9019313A Withdrawn GB2245669A (en) 1990-06-30 1990-09-04 Vehicle parking brake

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909014599A Pending GB9014599D0 (en) 1990-06-30 1990-06-30 Automobile hand brake

Country Status (1)

Country Link
GB (2) GB9014599D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2437536A (en) * 2006-04-25 2007-10-31 Ford Global Tech Llc Electric parking brake inhibitor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1152852A (en) * 1965-06-17 1969-05-21 Sumitomo Electric Industries Improvements in or relating to Braking Systems for Vehicles
US3842950A (en) * 1971-04-19 1974-10-22 Fail Safe Brake Corp Automatic parking or emergency brake system for motor vehicles
WO1982003604A1 (en) * 1981-04-20 1982-10-28 Safe Ind Inc Fail Control system for vehicle brake valve
GB2117070A (en) * 1982-03-22 1983-10-05 Rau Swf Autozubehoer Motor vehicle control arrangement
GB2123911A (en) * 1982-07-12 1984-02-08 Akebono Brake Ind A stop valve for maintaining brake pressure
GB2217410A (en) * 1988-04-12 1989-10-25 Eric Hudim Automatic parking brake

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1152852A (en) * 1965-06-17 1969-05-21 Sumitomo Electric Industries Improvements in or relating to Braking Systems for Vehicles
US3842950A (en) * 1971-04-19 1974-10-22 Fail Safe Brake Corp Automatic parking or emergency brake system for motor vehicles
WO1982003604A1 (en) * 1981-04-20 1982-10-28 Safe Ind Inc Fail Control system for vehicle brake valve
GB2117070A (en) * 1982-03-22 1983-10-05 Rau Swf Autozubehoer Motor vehicle control arrangement
GB2123911A (en) * 1982-07-12 1984-02-08 Akebono Brake Ind A stop valve for maintaining brake pressure
GB2217410A (en) * 1988-04-12 1989-10-25 Eric Hudim Automatic parking brake

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2437536A (en) * 2006-04-25 2007-10-31 Ford Global Tech Llc Electric parking brake inhibitor
EP1849667A1 (en) * 2006-04-25 2007-10-31 Ford Global Technologies, LLC Electric park brake system
US7699751B2 (en) 2006-04-25 2010-04-20 Land Rover Electric park brake system
GB2437536B (en) * 2006-04-25 2011-02-16 Ford Global Tech Llc Electric park brake system

Also Published As

Publication number Publication date
GB9014599D0 (en) 1990-08-22
GB9019313D0 (en) 1990-10-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)