GB2409712A - Caravan / trailer anti-snaking braking system - Google Patents

Caravan / trailer anti-snaking braking system Download PDF

Info

Publication number
GB2409712A
GB2409712A GB0330144A GB0330144A GB2409712A GB 2409712 A GB2409712 A GB 2409712A GB 0330144 A GB0330144 A GB 0330144A GB 0330144 A GB0330144 A GB 0330144A GB 2409712 A GB2409712 A GB 2409712A
Authority
GB
United Kingdom
Prior art keywords
braking system
trailer
snaking
caravan
mph
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Withdrawn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
GB0330144A
Other versions
GB0330144D0 (en
Inventor
John Hanlon
Christine Hanlon
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
Priority to GB0330144A priority Critical patent/GB2409712A/en
Publication of GB0330144D0 publication Critical patent/GB0330144D0/en
Publication of GB2409712A publication Critical patent/GB2409712A/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Withdrawn legal-status Critical Current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
    • 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
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1708—Braking or traction control means specially adapted for particular types of vehicles for lorries or tractor-trailer combinations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
    • 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
    • B60Q1/30—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 rear of vehicle, e.g. by means of reflecting surfaces
    • B60Q1/305—Indicating devices for towed vehicles
    • 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
    • B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
    • 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
    • B60T8/24—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 vehicle inclination or change of direction, e.g. negotiating bends
    • B60T8/248—Trailer sway, e.g. for preventing jackknifing
    • 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
    • B60T2230/00—Monitoring, detecting special vehicle behaviour; Counteracting thereof
    • B60T2230/06—Tractor-trailer swaying

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention relates to a braking system to reduce/prevent snaking of trailers. The braking system may incorporate an electro-mechanical system. Ideally, if the braking system detects (via a snaking sensor B/ pendulum mechanism) that the trailer is snaking, and if it detects (via a speed sensor A) that the speed is above a predetermined amount (preferably 50 mph), then an electronic monitoring system C would apply the brakes of the trailer alone via a secondary hydraulic braking system D. This would reduce the snaking / oscillations and thereby stabilize the trailer. Further, it would also be preferable if the trailer brake lights E were actuated when the brakes are applied.

Description

24097 1 2 1.
Caravan/Trailer Anti-snake Braking System.
Every Year numerous road traffic accidents involving towed vehicles, i.e. caravans and trailers, occur where no other vehicle is involved.
From experience of towing different types of trailers, and frequent travelling on many different types of roads, it has become apparent that accidents Involving caravans and trailers are caused when the towed vehicle (caravan or trailer) possesses more momentum than the towing vehicle. This usually happens when the speed is in excess of mph and the combination of trailer and towing vehicle are descending a gradient, however slight.
This causes the caravan or trailer to "push" the towing vehicle. Any deviation thereafter from crosswind or steering of the towing vehicle causes the caravan/trailer to oscillate from side to side, commonly known as "snaking". If the brakes of the towing vehicle are applied, the situation becomes worse, usually causing the caravan/trailer to snake to a greater degree, ultimately overturning with complete loss of control of the towing vehicle.
My invention would be an electro-mechanical device that would detect excessive speed (50+ mph) and the snaking of the towed vehicle. This device, when both conditions were present, would apply the brakes of the caravan/trailer only, causing a stabilizing effect and reducing the speed to below 50 mph safely without the towing vehicle's brakes being applied.
The main components will now be described with reference to the accompanying diagram, Figure 1 showing plan view of trailer/caravan.
A. shows a speed sensor.
B. shows a snake sensor.
C. shows an electronic circuit.
D. shows secondary brake system.
E. shows caravan/trailer brake lights.
As shown in figure 1. the speed sensor(A) is mounted in one of the wheels of the caravan/trailer to detect speed in excess of 50 mph. There is a snake sensor (B),mounted at the rear of the caravan/trailer as this is the best position for detecting the sideways motion. This comprises of a damped pendulum device or slide weight that would activate micro-switches
directly or via a magnetic field.
An electronic circuit (C) is mounted on the caravan/trailer to monitor the conditions detected by the speed sensor(A) and snake sensor(B). This circuit has its own 12volt power supply in the form of a battery that is trickle charged by the towing vehicles supply. 2.
The secondary braking system(D) would consist of a hydraulic master and slave cylinder connected to the trailer's normal brake system, that would be actuated by the electronic monitor circuit (C). This circuit would also activate the trailers brake lights to warn following motorists.
In the event of the caravan/trailer exceeding 50 mph and beginning to oscillate thereby, both conditions being present as in (A) and (B),the secondary braking system(D) on the caravan/trailer would be activated and would remain activated until the speed sensor (A) detected a speed below mph. 3.

Claims (5)

CLMHS.
1. A braking system for caravans and trailers to obviate oscillation of trailer or caravan and its towing vehicle.
2. A braking system as claimed in Claim 1 where an electro- mechanical system is employed in conjunction with any existing braking facility.
3. A braking system as claimed in Claim 1 and Claim 2 whereby the system would be activated when speeds in excess of 50 mph and sideways oscillations (snaking) are both present and would remain activated until the speed was reduced to under 50 mph.
4. A braking system as claimed in Claim 2 comprising of components in the form of a speed sensor, an oscillation (snake) sensor, an electronic monitor circuit and a secondary hydraulic braking system activating the normal braking system of the trailer or caravan.
5. A braking system as fully described in above Claims and illustrated in accompanying drawing.
GB0330144A 2003-12-30 2003-12-30 Caravan / trailer anti-snaking braking system Withdrawn GB2409712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0330144A GB2409712A (en) 2003-12-30 2003-12-30 Caravan / trailer anti-snaking braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0330144A GB2409712A (en) 2003-12-30 2003-12-30 Caravan / trailer anti-snaking braking system

Publications (2)

Publication Number Publication Date
GB0330144D0 GB0330144D0 (en) 2004-02-04
GB2409712A true GB2409712A (en) 2005-07-06

Family

ID=31503272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0330144A Withdrawn GB2409712A (en) 2003-12-30 2003-12-30 Caravan / trailer anti-snaking braking system

Country Status (1)

Country Link
GB (1) GB2409712A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008150A1 (en) * 2005-07-11 2007-01-18 Volvo Lastvagnar Ab A system and a method for stabilising a vehicle combination
US7905555B2 (en) 2007-08-16 2011-03-15 Global Polymer Industries, Inc. Yaw control system for a vehicle-trailer combination
DE202018102469U1 (en) * 2018-05-03 2019-05-16 Knott Gmbh Trailer stabilization device for a trailer and trailer
DE202021102632U1 (en) 2020-05-19 2021-06-10 Knott Gmbh Trailer stabilization device for stabilizing a trailer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758165A (en) * 1971-12-02 1973-09-11 J Savelli Trailer sway control apparatus
US4196936A (en) * 1978-02-13 1980-04-08 Motor Wheel Corporation Trailer brake control system
US4232910A (en) * 1976-04-12 1980-11-11 Motor Wheel Corporation Systems and methods for controlling trailer brakes as a function of trailer wheel rotation
US6042196A (en) * 1997-02-25 2000-03-28 Toyota Jidosha Kabushiki Kaisha Trailer brake control device of tractor-trailer combination vehicle for suppression of side sway of trailer
US6446998B1 (en) * 1999-01-20 2002-09-10 Robert Bosch Gmbh Device for determining a distance of a motor vehicle from an object
US6600974B1 (en) * 1999-06-30 2003-07-29 Robert Bosch Gmbh Method and device for identifying a rolling motion in a vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758165A (en) * 1971-12-02 1973-09-11 J Savelli Trailer sway control apparatus
US4232910A (en) * 1976-04-12 1980-11-11 Motor Wheel Corporation Systems and methods for controlling trailer brakes as a function of trailer wheel rotation
US4196936A (en) * 1978-02-13 1980-04-08 Motor Wheel Corporation Trailer brake control system
US6042196A (en) * 1997-02-25 2000-03-28 Toyota Jidosha Kabushiki Kaisha Trailer brake control device of tractor-trailer combination vehicle for suppression of side sway of trailer
US6446998B1 (en) * 1999-01-20 2002-09-10 Robert Bosch Gmbh Device for determining a distance of a motor vehicle from an object
US6600974B1 (en) * 1999-06-30 2003-07-29 Robert Bosch Gmbh Method and device for identifying a rolling motion in a vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008150A1 (en) * 2005-07-11 2007-01-18 Volvo Lastvagnar Ab A system and a method for stabilising a vehicle combination
EP1904351B1 (en) 2005-07-11 2016-03-30 Volvo Lastvagnar Ab A system and a method for stabilising a vehicle combination
US7905555B2 (en) 2007-08-16 2011-03-15 Global Polymer Industries, Inc. Yaw control system for a vehicle-trailer combination
DE202018102469U1 (en) * 2018-05-03 2019-05-16 Knott Gmbh Trailer stabilization device for a trailer and trailer
EP3564051A1 (en) * 2018-05-03 2019-11-06 Reich GmbH Regel- und Sicherheitstechnik Trailer and trailer stabilisation device for a trailer
DE202021102632U1 (en) 2020-05-19 2021-06-10 Knott Gmbh Trailer stabilization device for stabilizing a trailer
EP3912871A1 (en) 2020-05-19 2021-11-24 Reich GmbH Regel- und Sicherheitstechnik Trailer stabilising device and method for stabilising a trailer
DE102020113509A1 (en) 2020-05-19 2021-11-25 Knott Gmbh Trailer stabilization device and method for stabilizing a trailer
DE102020113509B4 (en) 2020-05-19 2024-02-01 Knott Gmbh Trailer stabilization device, method for stabilizing a trailer, computer program and trailer

Also Published As

Publication number Publication date
GB0330144D0 (en) 2004-02-04

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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)