GB2421062A - Remote controlled braking system for vehicles - Google Patents
Remote controlled braking system for vehicles Download PDFInfo
- Publication number
- GB2421062A GB2421062A GB0504823A GB0504823A GB2421062A GB 2421062 A GB2421062 A GB 2421062A GB 0504823 A GB0504823 A GB 0504823A GB 0504823 A GB0504823 A GB 0504823A GB 2421062 A GB2421062 A GB 2421062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vehicle
- operating system
- brakes
- lock device
- vehicle operating
- 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- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000004913 activation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- B60T7/16—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle
- B60T7/18—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle operated by wayside apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/08—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on brakes or brake systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Regulating Braking Force (AREA)
Abstract
A vehicle operating system includes remotely operable means 5-8, 10 for effecting application of the vehicle brakes 1-4 and for reducing the speed of the vehicle to below a predetermined maximum speed, said means 5-8, 10 being such as to prevent release of said brakes 1-4 once applied. The vehicle operating system preferably comprises a hydraulic lock device 10 which can prevent return of brake fluid to the master cylinder 9, and thereby maintain the braking. The hydraulic lock device 10 may have a piston E having a head portion F which engages a valve seat H thereby serving as a one-way valve. A coded signal (sent from an electronic keypad / card reader / Police Unit) could be received by an ECU 6 on board to effect application of the brakes. Preferably, engine power is reduced to slow the vehicle down to a safe speed before braking commences. This system may be used by the police in preventing theft.
Description
VEHICLE OPERATING SYSTEMS
Field of the Invention
This invention relates to vehicle operating systems and has for its object the provision of an improved vehicle operating system that is so designed as to reduce the incidence of vehicle theft.
Summary of the Invention
According to a first aspect of the present invention there is provided a vehicle operating system that includes remotely operable means for effecting controlled application of the vehicle brakes and for reducing the speed of the vehicle below a predetermined maximum speed, said means for controlled application of the vehicle brakes being such as to prevent release of the brakes once applied.
According to a second aspect of the present invention there is proved a vehicle operating system that includes means on the vehicle that are responsive to the input of a coded signal for preventing release of the vehicle brakes and remotely operable means for effecting controlled application of the vehicle brakes and for reducing the speed of the vehicle below a predetermined maximum speed.
Brief Description of the Drawings
Figure 1 is a schematic view of a vehicle braking system and engine management system, Figure 2 is a detail view of a hydraulic lock device that forms part of the system, and Figure 3 is a diagram illustrating the use of the system.
Description of the Preferred Embodiment
The system shown in Figure 1 is for a four-wheeled vehicle and includes four brake disc and caliper arrangements 1, 2, 3 and 4.
There is an ignition module 5 that is connected to an electronic control unit 6, which is connected to a hydraulic locking device immobiliser 7 that is connected, in turn, to an electronic keypad 8 that is mounted on the vehicle dashboard. The system also includes a S 3 master brake cylinder 9 and a hydraulic lock device 10. The ignition module 5 is connected by a High Tension lead to the spark plugs 11.
The hydraulic lock device 10 is fitted in a secured, safe area of the vehicle, e.g. in the engine compartment, and the immobiliser 7 for the hydraulic lock device 10 is also fitted in a secured, safe area of the vehicle, e.g. under the dashboard.
The hydraulic lock device 10 is so designed that it does not interfere with the application of the vehicle brakes 1 to 4. When the device 10 is in the "off' condition, there is a straight-through valve that does not interfere with the vehicle hydraulics. When the device is in the "on" condition, a one-way valve prevents the return of the brake fluid to the master cylinder 9, thus leaving the brakes in their applied conditions.
Activation of the hydraulic lock device 10 can be effected manually by means of the keypad 8 and, when it is so activated, the immobiliser 7 is also activated, cutting out the HI spark, the signals from the ECU 6 and the fuel system.
If the brake pressure drops as a result of the brake pipes being cut, a pressure switch 12 is activated so that the immobiliser 7 cuts in automatically, thus stopping the engine from starting.
The hydraulic lock device 10 includes an eccentric cam A housed within a cam carrier B. There is a bridge assembly C on which is mounted a roller in contact with the cam A, thereby minimising friction. The bridge assembly reciprocates between two nylon guides D and movement of the bridge assembly C results in movement of a piston E. The bridge assembly C can be extended so that it can operate more than one piston E simultaneously. The or each piston E carries two rubber seals K and, at the end of its travel, a tapered portion of the piston E engages a failsafe tapered seat L. At the end of the piston E remote from the bridge assembly C there is a one-way valve having a dome-shaped end portion F. The one-way valve is held by a lock washer G, which ensures that the oneway valve is not pushed in when the normal brake is applied.
The dome-shaped end portion F of the one-way valve engages a nylon insert H held within an end cap I that has threaded engagement in a threaded end portion of the valve body. A bleed nipple J is provided to ensure that there is no air within the chamber containing the one-way valve.
When the lock is in the "off' position, brake fluid pressure from the brake master cylinder enters the chamber through port 1A and passes around the one-way valve through the holes in the lock washer G and exits to the vehicle brakes through port 2A.
When the lock is activated, the cam A rotates and pushes against the roller carried by the bridge assembly C, thus pushing piston E inwardly until a position is reached in which the domed portion F of the one-way valve engages the seat H, thereby blocking off the port 1A and allowing no fluid back to the master cylinder. As the cam A continues to rotate, further displacement of the piston E is effected, thus increasing the pressure transmitted through port 2A applying the vehicle brakes.
While the dome-shaped portion F of the one-way valve is engaged with the seat H, any pressure in the brake system from port 2A onwards cannot escape or return to the master cylinder.
If the footbrake is applied while the lock is activated, the dome- shaped portion F of the one-way valve will be lifted off its seat H against the action of its retaining spring S allowing the brakes to be applied harder but, when the system pressure is equalized, the action of the retaining spring S will cause the dome-shaped portion F of the one- way valve to re-engage the seat H, again sealing all the pressure to all the vehicle brakes.
There will normally be a hydraulic lock device for each brake of a vehicle, i.e. a motorcycle will have two hydraulic lock devices and a saloon car will have four, and so on.
Figure 3 shows the overall system design. The device is installed in the engine management system and braking systems and the controller enables the locking device to be activated manually by the vehicle owner, either via a keypad or via a card reader, or remotely by an authority, such as the police.
Once activated, the system will lock the brakes of the vehicle in the "on" condition if the speed of the vehicle is below a predetermined maximum speed, as assessed by the speed sensor.
This will be the normal condition when the vehicle is parked and the system is activated by the owner.
Use of the device serves to reduce the growing number of vehicle thefts. If a vehicle is stolen, it can be stopped efficiently, quickly and safely, thus helping to prevent serious injury and, as times, deaths caused to both thieves and their innocent victims as a result of a stolen vehicle going out of control. Vehicle theft could virtually be eliminated and this would reduce insurance claims and reduce the police workload relating to vehicle theft. Fitting of the system as standard would be a considerable asset on the fight against vehicle crime.
When used manually, the device is activated by the owner of the vehicle entering a PIN number into the keypad installed on the dashboard - or by inserting a card in a card reader. This then activates the hydraulic lock device to lock the brakes in their "on" condition whilst the vehicle is stationary. If an attempt is made to move the vehicle whilst the locking device is in the activated position, the brakes will lock on such that the vehicle cannot be moved.
If the brake pipes are severed in an attempt to release the braking action, the pressure switch in the lock device will activate the immobiliser in the engine management system preventing the engine from starting.
The system is "unlocked" by entering the correct PIN number in the keypad or by inserting of the correct card in the card reader.
The remote control facility enables the police to bring a vehicle to a stop under controlled conditions. If the vehicle speed is above the maximum, the engine management system will respond to reception of a signal from the police to reduce the engine power so that the vehicle is slowed down to below the preset maximum speed.
This is done in such a way that the engine is still running to provide the required hydraulic pressure and brake servo pressure.
A vehicle fitted with a system in accordance with the present invention will have its vehicle registration number stored permanently in an identification chip mounted on the vehicle in a secure location.
Once a suspicious vehicle has been identified by the police authority, the Police Control Unit is activated and will detect any vehicles within its radio range that are fitted with the system. By using a scanning device, a directional antenna, and pointing at the target vehicle, the number of detected vehicles can be limited.
As an alternative to the above, the signal that is transmitted by the police control unit can be vehicle-specific and satellite systems can be employed to enable large areas of the country to be covered from a single Police Control Unit.
The identification details of each detected vehicle may be displayed on the Police Control Unit and the target vehicle can then be selected from the displayed list. A coded message is then sent to the target vehicle telling the ECU or controller on the vehicle to initiate the "stop" sequence. Only the target vehicle receives this message and, once the "stop" message is validated and approved, the "stop" sequence is continued.
The vehicle speed is checked by means of the speed sensor and, if the vehicle speed is greater than the predetermined maximum speed, the engine power is reduced by cutting power to some of the vehicle cylinders. Once the vehicle speed has dropped below the maximum speed, the hydraulic lock device is activated to stop the vehicle. Once the hydraulic lock device is activated, the car will be brought to a controlled stop by progressive application of the vehicle brakes as the vehicle slows down.
If the police authority considers it safe for them to do so, they can over-ride the speed limitation and initiate immediate activation of the hydraulic lock device and application of the vehicle brakes. If, of course, the vehicle speed is below the maximum at the time of activation, the brake application and locking sequence will be initiated immediately.
Claims (8)
- Claims:- 1. A vehicle operating system that includes remotely operablemeans for effecting controlled application of the vehicle brakes and for reducing the speed of the vehicle below a predetermined maximum speed, said means for controlled application of the vehicle brakes being such as to prevent release of the brakes once applied.
- 2. A vehicle operating system that includes means on the vehicle that are responsive to the input of a coded signal for preventing release of the vehicle brakes and remotely operable means for effecting controlled application of the vehicle brakes and for reducing the speed of the vehicle below a predetermined maximum speed.
- 3. A vehicle operating system as claimed in either of the preceding claims, which includes a hydraulic lock device which, in its activated condition, serves to prevent the return of brake fluid to a master cylinder of the vehicle.
- 4. A vehicle operating system as claimed in claim 3, in which the hydraulic lock device includes a piston having a head portion which, in the activated condition of the hydraulic lock device, engages a valve seat.
- 5. A vehicle operating system as claimed in Claim 4, in which the head portion is at one end of the piston and in which a bridge assembly is located at the other end of the piston.
- 6. A vehicle operating system as claimed in any one of Claims 3 to 5, which includes a keypad for effecting activation of the hydraulic lock device.
- 7. A vehicle operating system as claimed in any one of the preceding claims, which includes an electronic control unit which, on receipt of a coded message, initiates a "stop" sequence.
- 8. A vehicle operating system arranged to function substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0422667A GB0422667D0 (en) | 2004-10-13 | 2004-10-13 | Vehicle operating systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0504823D0 GB0504823D0 (en) | 2005-04-13 |
| GB2421062A true GB2421062A (en) | 2006-06-14 |
Family
ID=33443811
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0422667A Ceased GB0422667D0 (en) | 2004-10-13 | 2004-10-13 | Vehicle operating systems |
| GB0504823A Withdrawn GB2421062A (en) | 2004-10-13 | 2005-03-09 | Remote controlled braking system for vehicles |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0422667A Ceased GB0422667D0 (en) | 2004-10-13 | 2004-10-13 | Vehicle operating systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB0422667D0 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506913B1 (en) * | 2007-11-19 | 2011-12-15 | Georg Lindsberger | HYDRAULIC BRAKING SYSTEM AND IMMOBILIZER MODULE FOR SUCH A BRAKING SYSTEM |
| WO2024238301A1 (en) * | 2023-05-12 | 2024-11-21 | Textron Systems Corporation | Remotely controlled vehicle with safety standoff distance limiter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067411A (en) * | 1976-05-27 | 1978-01-10 | Conley Thomas R | Vehicle emergency alarm and stop system |
| WO1999065681A1 (en) * | 1998-06-18 | 1999-12-23 | Kline & Walker, Llc | Automated devices to control equipment and machines with remote control and accountability worldwide |
| WO2003039924A2 (en) * | 2001-11-09 | 2003-05-15 | Regents Of The University Of California | Apparatus and method for stopping a vehicle |
| GB2387875A (en) * | 2002-04-25 | 2003-10-29 | David Martin Keene | Vehicle immobiliser system |
| US20040034462A1 (en) * | 2002-08-14 | 2004-02-19 | Weed Thomas J. | Method & apparatus for stopping & Parking a commercial vehicle |
| US20040036350A1 (en) * | 2002-08-23 | 2004-02-26 | Rowe Steven D. | Antitheft braking system for trucks, trailers and motor vehicles |
| US20040111207A1 (en) * | 2002-08-14 | 2004-06-10 | Bendix Commercial Vehicle Systems Llc | Method and apparatus for stopping and parking a commercial vehicle |
-
2004
- 2004-10-13 GB GB0422667A patent/GB0422667D0/en not_active Ceased
-
2005
- 2005-03-09 GB GB0504823A patent/GB2421062A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067411A (en) * | 1976-05-27 | 1978-01-10 | Conley Thomas R | Vehicle emergency alarm and stop system |
| WO1999065681A1 (en) * | 1998-06-18 | 1999-12-23 | Kline & Walker, Llc | Automated devices to control equipment and machines with remote control and accountability worldwide |
| US20040049324A1 (en) * | 1998-06-18 | 2004-03-11 | Kline And Walker Llc | Electrically controlled automated devices to operate, slow, guide, stop and secure, equipment and machinery for the purpose of controlling their unsafe, unattended, unauthorized, unlawful hazardous and/or legal use, with remote control and accountability worldwide |
| WO2003039924A2 (en) * | 2001-11-09 | 2003-05-15 | Regents Of The University Of California | Apparatus and method for stopping a vehicle |
| GB2387875A (en) * | 2002-04-25 | 2003-10-29 | David Martin Keene | Vehicle immobiliser system |
| US20040034462A1 (en) * | 2002-08-14 | 2004-02-19 | Weed Thomas J. | Method & apparatus for stopping & Parking a commercial vehicle |
| US20040111207A1 (en) * | 2002-08-14 | 2004-06-10 | Bendix Commercial Vehicle Systems Llc | Method and apparatus for stopping and parking a commercial vehicle |
| US20040036350A1 (en) * | 2002-08-23 | 2004-02-26 | Rowe Steven D. | Antitheft braking system for trucks, trailers and motor vehicles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506913B1 (en) * | 2007-11-19 | 2011-12-15 | Georg Lindsberger | HYDRAULIC BRAKING SYSTEM AND IMMOBILIZER MODULE FOR SUCH A BRAKING SYSTEM |
| WO2024238301A1 (en) * | 2023-05-12 | 2024-11-21 | Textron Systems Corporation | Remotely controlled vehicle with safety standoff distance limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0504823D0 (en) | 2005-04-13 |
| GB0422667D0 (en) | 2004-11-10 |
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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) |