GB2337879A - Vehicle deceleration warning system - Google Patents

Vehicle deceleration warning system Download PDF

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Publication number
GB2337879A
GB2337879A GB9910619A GB9910619A GB2337879A GB 2337879 A GB2337879 A GB 2337879A GB 9910619 A GB9910619 A GB 9910619A GB 9910619 A GB9910619 A GB 9910619A GB 2337879 A GB2337879 A GB 2337879A
Authority
GB
United Kingdom
Prior art keywords
switch
vehicle
hazard warning
deceleration
parallel
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Withdrawn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
GB9910619A
Other versions
GB9910619D0 (en
Inventor
Terence Brian Glover
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 GB9910619D0 publication Critical patent/GB9910619D0/en
Publication of GB2337879A publication Critical patent/GB2337879A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B60Q1/445—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal controlled by inertial devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/147—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch the switch being of the reed switch type

Abstract

The hazard warning lights of a vehicle are activated automatically in response to severe deceleration of the vehicle through braking. A deceleration sensing switch 10, 11, 12 may be connected in parallel with the conventional hazard warning switch S. Electronic circuitry C may also be provided to close a relay switch R, also in parallel with the switch S, for a predetermined time after initial closure of the deceleration sensing switch. The deceleration sensing switch may be a mercury tilt switch, or preferably a reed switch 10 closed by forward movement of an annular magnet 11 which is biassed against forward movement by a compression spring 12. The sensitivity of the sensing switch may be adjusted by altering the position of a spring mount 13.

Description

VEHICLE SAFETY SYSIEM 2337879 This invention concerns a vehicle safety
system, and more particularly a system to warn the driver of a vehicle following another of a potentially hazardous situation ahead.
Hazard warning lights are well known. They are invariably comprised by the direction indicator lights which are controlled to flash simultaneously on both sides of the vehicle upon operation of a dedicated switch.
Such switch, because its use is not often required, is often located at a relatively inaccessible position, for example, on the transmission tunnel behind the gear lever necessitating the driver to take his eyes away from the road and one hand from the steering wheel to operate it just at the time when he would be least advised to do so, for example when approaching a tailback on a motorway at speed.
It is an object of the present invention to provide a hazard warning system which overcomes the disadvantage aforesaid.
According to the present invention there is provided a hazard warning system comprising means to activate the hazard warning lights of a vehicle automatically in response to severe deceleration of the vehicle through braking.
By severe deceleration through braking we mean that level of deceleration through braking which would characterise approach of the vehicle to a hazardous condition such as approach of the vehicle at excessive speed to a sharp bend or a tailback or an animal roaming on the roadway.
The invention will be further apparent from the following description with reference to the single figure of the accompanying drawing, which shows, by way of example only, one form of system embodying same.
As can be seen from the drawing the system comprises a magnetic reed switch 10 which is connected in parallel with the conventional hazard warning light switch S of the vehicle.
An annular magnet 11 surrounds the reed switch 10 at the end thereof towards the rear of the vehicle. The magnet 11 is biassed against forward movement by a compression spring 12 extending between the forward face of the magnet 11 and the rearward face of an annular mount 13.
In the event of severe braking of the vehicle, the magnet 11 moves forwardly against the action of the spring 12 to close the switch 10 and operate the hazard warning lights throughout the duration of severe deceleration.
The position of the mount 13 can be adjusted forwardly and rearwardly by rotating it within a barrel 14 with which it is threadedly engaged to adjust the force exerted by the spring 12 on the magnet 11 and hence sensitivity of the arrangement.
If the driver wishes the hazard warning lights to continue to operate after the period of severe deceleration, he may actuate the switch S manually at a time when it is relatively safe to do so.
Additionally electronic circuitry C shown in chain-dotted lines in parallel with the switch 10 may be provided to close a relay switch R in parallel with the switch S for a pre determined time interval after initial closure of the switch 10.
It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art, being possible, without departing from the scope thereof.
Thus the reed switch 10 may be replaced by any other deceleration sensing device such as a mercury tilt switch, but the reed switch is preferred since it is relatively unaffected by the slope of the road along which the vehicle is being driven.

Claims (7)

1. According to the present invention there is provided a hazard warning system comprising means to activate the hazard warning lights of a vehicle automatically in response to severe deceleration of the vehicle through braking.
2. A system according to claim 1 comprising a deceleration sensing switch connected in parallel with the conventional hazard warning light switch of the vehicle.
3. reed switch.
A system according to claim 2 wherein said switch comprises a magnetic
4. A system according to claim 3 wherein the switch is aligned with the fore and aft axis of the vehicle and operated by movement of a magnet biassed against forward movement.
5. A system according to claim 4 wherein said magnet is biassed by a compression spring.
6. switch.
A system according to claim 2 wherein said switch comprises a mercury tilt
7. A system according to any one of claims 2-6 including circuitry to close a relay in parallel with said switch for a predetermined time interval after initial closure of the switch.
GB9910619A 1998-05-27 1999-05-10 Vehicle deceleration warning system Withdrawn GB2337879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9811227.9A GB9811227D0 (en) 1998-05-27 1998-05-27 Vehicle safety system

Publications (2)

Publication Number Publication Date
GB9910619D0 GB9910619D0 (en) 1999-07-07
GB2337879A true GB2337879A (en) 1999-12-01

Family

ID=10832676

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9811227.9A Ceased GB9811227D0 (en) 1998-05-27 1998-05-27 Vehicle safety system
GB9910619A Withdrawn GB2337879A (en) 1998-05-27 1999-05-10 Vehicle deceleration warning system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9811227.9A Ceased GB9811227D0 (en) 1998-05-27 1998-05-27 Vehicle safety system

Country Status (1)

Country Link
GB (2) GB9811227D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007129129A1 (en) * 2006-05-10 2007-11-15 Atilo Jadresko Helmet stop light for motor cyclists or bikers with inertional switch and position light

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119880A (en) * 1982-05-11 1983-11-23 Peter Burton Braking indicator
GB2177557A (en) * 1985-06-01 1987-01-21 Nigel Anthony Taylor Warning signal for a motor vehicle
US4723078A (en) * 1986-05-17 1988-02-02 Daimler-Benz Aktiengesellschaft Arrangement for the automatic engagement of a hazard warning system
EP0306562A1 (en) * 1987-09-09 1989-03-15 Giancarlo Giovalli Deceleration warning device for vehicles
GB2282499A (en) * 1993-09-27 1995-04-05 Peter Edward Michael Peggie Vehicle hazard warning system
US5440084A (en) * 1993-01-08 1995-08-08 Nippon Aleph Corporation Shock detecting system
GB2312104A (en) * 1996-04-10 1997-10-15 Stephen George Watson Deceleration warning system for a road vehicle
GB2324211A (en) * 1997-04-07 1998-10-14 Nicholas John Gooch Vehicle deceleration indication

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119880A (en) * 1982-05-11 1983-11-23 Peter Burton Braking indicator
GB2177557A (en) * 1985-06-01 1987-01-21 Nigel Anthony Taylor Warning signal for a motor vehicle
US4723078A (en) * 1986-05-17 1988-02-02 Daimler-Benz Aktiengesellschaft Arrangement for the automatic engagement of a hazard warning system
EP0306562A1 (en) * 1987-09-09 1989-03-15 Giancarlo Giovalli Deceleration warning device for vehicles
US5440084A (en) * 1993-01-08 1995-08-08 Nippon Aleph Corporation Shock detecting system
GB2282499A (en) * 1993-09-27 1995-04-05 Peter Edward Michael Peggie Vehicle hazard warning system
GB2312104A (en) * 1996-04-10 1997-10-15 Stephen George Watson Deceleration warning system for a road vehicle
GB2324211A (en) * 1997-04-07 1998-10-14 Nicholas John Gooch Vehicle deceleration indication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007129129A1 (en) * 2006-05-10 2007-11-15 Atilo Jadresko Helmet stop light for motor cyclists or bikers with inertional switch and position light

Also Published As

Publication number Publication date
GB9910619D0 (en) 1999-07-07
GB9811227D0 (en) 1998-07-22

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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)