GB1152852A - Improvements in or relating to Braking Systems for Vehicles - Google Patents
Improvements in or relating to Braking Systems for VehiclesInfo
- Publication number
- GB1152852A GB1152852A GB2057466A GB2057466A GB1152852A GB 1152852 A GB1152852 A GB 1152852A GB 2057466 A GB2057466 A GB 2057466A GB 2057466 A GB2057466 A GB 2057466A GB 1152852 A GB1152852 A GB 1152852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brake
- switch
- vehicle
- coil
- servo
- 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
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
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
1,152,852. Automatic brake control; warning devices. SUMITOMO ELECTRIC INDUSTRIES Ltd. 10 May, 1966 [17 June, 1965; 18 Oct., 1965; 25 Dec., 1965; 15 March, 1966], No. 20574/66. Headings F2E and F2F. A method of automatically operating the parking brake of a vehicle comprises detecting whether or not the vehicle is moving and detecting movement of the accelerator and/or clutch pedal beyond a predetermined limit and employing the resulting information to operate the parking brake when the vehicle is stationary and the accelerator pedal is in an impressed position and/or the clutch pedal is in a pressed position. The parking brake operating system comprises a servo unit 24 coupled to the brake through transmission members 28, 29, 33, 36 also operable by a hand brake lever 42. The servo-unit is supplied from a vacuum source 23 by an electro-magnetic valve 13, 15, which connects pipes 17, 18 when the coil 13 is energized. An electromagnetic valve 137 is provided to vary the speed of operation of the servo. The circuit includes a switch 9 opened by a vehicle movement detector when the vehicle is in motion in either direction; a switch 10 operable by the accelerator pedal to open on acceleration movement thereof; a switch 11 which opens when the clutch pedal is not pressed; a switch 45 which closes, together with switch 143, when the brake pedal movement is excessive; and a switch 144 which closes when the pressure in the hydraulic line is excessive. Operation.-With the vehicle at rest and the ignition key inserted at 2, switches 9 and 10 are closed and current flows through the coil 7 of relay 8, to close switch 6, and through coil 13 to apply the brake servo. Depression of the clutch pedal to select gear closes switch 11, depression of the accelerator opens switch 10. As the clutch is engaged switch 11 opens to deenergize brake valve coil 13 and release the brake to permit the vehicle to move, switch 9 then opening to de-energize coil 7 and open contacts 6, to prevent reapplication of the brake by the clutch or accelerator switches while the vehicle is in motion. If, when running, the clutch is disengaged and the service brake applied, contacts 6 close as the vehicle stops and coil 13 is energized to operate servo 24. If a fault in the service brake system allows excessive movement of the brake pedal, switches 45, 143 close to energize the coil 13 and apply the brakes, the switch 143 energizing coil 140 to remove the restricting valve 138 (which may alternatively be in the supply pipe 18) and allow the servo 24 to be applied rapidly irrespective of the operation of the switch 9, i.e. while the vehicle is moving. When the vehicle is parked the hand brake lever (42) is applied, the device 4 switched to 'L' and the key removed from 2. Re-insertion of the key to start the engine will then energize brake coil 13 through line 46 to maintain the braking irrespective of the condition of switches 10, 11, to act as an anti-theft device. Indicators.-A lamp 20 in parallel with coil 13 gives indication that the brake is applied.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3629565 | 1965-06-17 | ||
JP6379665 | 1965-10-18 | ||
JP8023665 | 1965-12-25 | ||
JP1623866 | 1966-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152852A true GB1152852A (en) | 1969-05-21 |
Family
ID=27456532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2057466A Expired GB1152852A (en) | 1965-06-17 | 1966-05-10 | Improvements in or relating to Braking Systems for Vehicles |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1580720A1 (en) |
GB (1) | GB1152852A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2029536A (en) * | 1978-09-11 | 1980-03-19 | Lee Corp A | Control system for automatically actuating vehicle brakes |
GB2245669A (en) * | 1990-06-30 | 1992-01-08 | Clive S M Fisk | Vehicle parking brake |
US11738732B2 (en) | 2021-04-28 | 2023-08-29 | Caterpillar Inc. | Automatic retarding control system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3148110A1 (en) * | 1981-12-04 | 1983-06-09 | Mannesmann Rexroth GmbH, 8770 Lohr | Trailer brake system |
FR2841199B1 (en) | 2002-06-20 | 2004-08-27 | Renault Sa | DEVICE AND METHOD FOR AUTOMATICALLY RELEASING THE AUTOMATIC PARKING BRAKE ON START-UP |
-
1966
- 1966-05-10 GB GB2057466A patent/GB1152852A/en not_active Expired
- 1966-06-06 DE DE19661580720 patent/DE1580720A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2029536A (en) * | 1978-09-11 | 1980-03-19 | Lee Corp A | Control system for automatically actuating vehicle brakes |
GB2029536B (en) * | 1978-09-11 | 1982-08-11 | Lee Corp A | Control system for automatically actuating vehicle brakes |
GB2245669A (en) * | 1990-06-30 | 1992-01-08 | Clive S M Fisk | Vehicle parking brake |
US11738732B2 (en) | 2021-04-28 | 2023-08-29 | Caterpillar Inc. | Automatic retarding control system |
Also Published As
Publication number | Publication date |
---|---|
DE1580720A1 (en) | 1970-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |