New! View global litigation for patent families

USRE30550E - Automatic trailer sway sensing and brake applying system - Google Patents

Automatic trailer sway sensing and brake applying system Download PDF

Info

Publication number
USRE30550E
USRE30550E US06031091 US3109179A USRE30550E US RE30550 E USRE30550 E US RE30550E US 06031091 US06031091 US 06031091 US 3109179 A US3109179 A US 3109179A US RE30550 E USRE30550 E US RE30550E
Authority
US
Grant status
Grant
Patent type
Prior art keywords
sway
iadd
iaddend
brakes
means
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 - Lifetime
Application number
US06031091
Inventor
Herman A. Reise
Original Assignee
Durrell U. Howard
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
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/24Arrangements 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
    • B60T8/246Change of direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/74Transmitting 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T7/00Brake-action initiating means
    • B60T7/12Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20Brake-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17Using electrical or electronic regulation means to control braking
    • B60T8/1701Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1708Braking or traction control means specially adapted for particular types of vehicles for lorries or tractor-trailer combinations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/24Arrangements 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
    • B60T8/248Trailer sway, e.g. for preventing jackknifing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T2230/00Monitoring, detecting special vehicle behaviour; Counteracting thereof
    • B60T2230/06Tractor-trailer swaying

Abstract

An apparatus for automatically sensing trailer sway and applying trailer brakes, thereby minimizing or eliminating the sway is provided. A hydraulic device, similar to a shock absorber with the addition of a pressure operated switch at each end of the cylinder, is mounted between the trailer A frame and the hitch head assembly. A sudden sway in either direction causes one of the switches to close and apply power to the electric trailer brakes thus minimizing or eliminating the sway and causing the car and trailer to "line up". The hydraulic device has an orifice in the piston or at each end of the cylinder so that normal turns made by the car and trailer do not cause sufficient pressure build up to cause either switch to operate. Similar automatic performance can be realized by the use of a gas filled bellows device.

Description

GENERAL DESCRIPTION OF THE INVENTION

One of the greatest dangers in towing a trailer is swaying and jackknifing. This can be caused by quick evasive action by the driver, gusty winds or air currents caused by other vehicles, especially large tractor trailers, overtaking and passing the towing and towed vehicle. When a vehicle overtakes and passes a towed vehicle.Iadd., .Iaddend.the driver of the towing vehicle should (1) keep as far away from the passing vehicle as the road will permit.Iadd., .Iaddend.(2) apply more gas to the towing vehicle .[.and or.]. .Iadd.and/or .Iaddend.(3) slightly apply the trailer brakes. Methods (2) and (3) result in greater tension between the towing and towed .[.vehicle.]. .Iadd.vehicles .Iaddend.thereby tending to minimize the possibility of swaying. Method (2), applying more gas, is not desirable under level or especially down hill road conditions for swaying tendencies and loss of control are greater under higher speeds and downhill conditions. All of these methods depend upon proper driver reactions to the then existing circumstances.

Normally a manual trailer brake control is provided at a convenient position for the driver. This manual control is also hydraulically or mechanically coupled to the foot brake of the towing vehicle. Proper driver reaction and his reaction time to apply the manual trailer brakes are very important in preventing or minimizing a sway. An automatic device or system that will sense a sway and automatically apply the trailer brakes is desirable in that it detects the beginning of an abnormal sway and immediately applies the trailer brakes. Such a system must cause the brakes to be released as soon as the sway is miminized or eliminated. Normal turns during highway driving or parking of the trailer must not cause the brakes to be applied. The Automatic Trailer Sway Sensing and Brake Applying System covered in this patent application does, as the title implies, meet the sway sensing and brake applying needs of trailer towing and towed vehicles.

The basic part of this system is a hydraulic unit similar to a shock absorber except that the forces required to compress or extend the unit are essentially equal. In addition.Iadd., .Iaddend.the unit is manufactured with pressure operated switches at each end of the hydraulic cylinder. The rubber inserts used on the shock absorber mounting details must not be used on the hydraulic sway sensing unit. The presence of such rubber inserts would result in a delay in the time of application of the brakes as well as an increase in the amplitude of the sway before the brakes are applied. A metal universal joint type of connection or mounting detail with a minimum of bearing clearance must be used. The hydraulic unit can be small to perform the sway sensing and brake applying functions only or the pressure operated switches can be made a part of hydraulic anti-sway devices during manufacture.

SUMMARY

This sway sensing and brake applying system can be used in conjunction with anti-sway devices that are commercially available. It automatically senses the beginning of a sway and automatically applies the trailer brakes. The brakes are automatically released as soon as the sway is minimized or eliminated. Brakes are not applied during normal driving turns or parking procedures.

The brake applying pressure operated switches can be made a part of hydraulic type anti-sway devices during manufacture. Such units then perform the dual function of an anti-sway device and an automatic sway sensing and brake applying system.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 This simplified drawing of the hydraulic unit shows, in block form, a check valve, bypass orifice and pressure operated switch on each end of the hydraulic cylinder.

FIG. 2 .[.A section.]. .Iadd.Sections .Iaddend.of the towing and towed .[.vehicle.]. .Iadd.vehicles .Iaddend.and the manner in which one end of the hydraulic sway sensing unit is mounted to the A frame and the other end is mounted on the hitch head, a short distance from the hitch ball, .[.is.]. .Iadd.are .Iaddend.shown.

FIG. 3 The electrical brake circuit, including the pressure operated switches for a one or two axle trailer.Iadd., .Iaddend.is shown.

FIG. 4 In this circuit the pressure operated switches will cause the brake or brakes on one side or the other only to be applied. This results in quicker corrective action.

FIG. 5 This figure is used to describe the operation under FIG. 4 conditions.

FIG. 6 A dual braking system, including the sway sensing pressure operated switches, is shown in this figure.

FIG. 7 The principle of appying the brakes on one side or the other only, in case of a sway, is shown for the dual braking system in this figure. In addition.Iadd., .Iaddend.isolation resistors and diodes are provided to eliminate the possibility of complete braking failure in case of an electrical short or open circuit in the overall electrical circuit of the braking system.

FIG. 8 Functionally this circuit is similar to that shown in FIG. 7 except that some of the isolation is provided by using two pole pressure operated switches.

DETAILED DESCRIPTION OF THE DRAWINGS

The basic unit of the Automatic Sway Sensing and Brake Applying System is shown in FIG. 1. The hydraulic unit 1 is similar to a shock absorber except that the fluid escapement orifice .Iadd.1A .Iaddend.in the piston .Iadd.1B .Iaddend.or at each end of the cylinder .Iadd.1C .Iaddend.is such that the force required to elongate the unit is essentially the same as that required to compress or shorten the unit. Mounting details 2 and 3 must not have rubber inserts as they normally have in shock absorbers. Hydraulic check valves 5 and 9 have adjustable bypass valves 6 and 10 in parallel with them. Pressure operated switches 7 and 11 have either wire or terminal connections represented by 8 and 12. A universal joint type element 4 is mounted to 2 and 3 by means of a through bolt. The other ends of the universal elements are then mounted to the A frame 13 of the towed vehicle 33 and the hitch head 15 of the towing vehicle 34 as shown in FIG. 2. The universal joint 4 that is bolted to 2 is in turn mounted on a supporting pin on the hitch head 15 a short distance from the hitch ball 14. The purpose of check valves 5 and 9 is to allow free passage of hydraulic fluid to pressure operated switches 7 and 11. The fluid must return to the cylinder through adjustable valves 6 and 10. A slight delay in the opening of switches 7 and 11 has thereby been introduced to keep the brakes energized for a short period after the rate of swaying has been reduced. For a given operational requirement.Iadd., .Iaddend.fixed orifices can be used in place of valves 6 and 10. The combination of valves 6 and 10 (or fixed orifices) and check valves 5 and 9 is shown to obtain the ultimate in sway correction. Considerable, and in most cases adequate.Iadd., .Iaddend.sway correction is realized without the use of 5, 6, 9 and 10. In applications where a delay in releasing the brakes is considered desirable it can also be done by means of electrical delay circuits.

A schematic of the electrical circuit is shown in FIG. 3. The towing vehicle battery 24 is connected to the brake control unit 23 which is located in a convenient position for the driver to reach and operate. Plug and connector 22 provide circuit connection from the towing vehicle to the towed vehicle. Not shown in the simplified diagrams are the tail light, stop light, direction signal light, running lights and inter battery connections normally provided through connector 22. Electromagnets of the brakes of a single axle trailer are represented by 16 and 17. In trailers with two axles.Iadd., .Iaddend.the electromagnets 18 and 19 are shown by dashed lines. Trailer battery 20 supplies the brake operating current through adjustable resistor 21 and pressure operated switch 7 or 11. Adjustable resistor 21 is set in accordance with one or two axle brake requirements.

Quicker sway correction can be realized by using the trailer brake circuit shown in FIG. 4. This can be described by referring to FIG. 5. If an abnormally fast left turn of the towing vehicle takes place.Iadd., .Iaddend.pressure switch 7 will close and cause only the trailer left wheel brake or brakes to be applied. This will cause the front of the trailer to move to the left and thereby provide .[.the force required.]. .Iadd.a force tending .Iaddend.to "line up" the towed and towing vehicles. If the towing vehicle in effect makes an abnormally fast right turn.Iadd., .Iaddend.pressure operated switch 11 closes and applies the trailer right wheel brake or brakes. Diodes 25 and 26 provide the required electrical isolation when either switch 7 or 11 operate and yet permit current to flow to all brakes when brake control 23, in the towing vehicle, is operated.

Present day cars have, for safety reasons, a braking system in which the front wheel brakes and the associated controls are isolated from the rear wheel brakes and their associated control system. Both systems are actuated by the common brake pedal. In such a system.Iadd., .Iaddend.the chance of simultaneous failures of both systems is very remote. Therefore if one system fails you still have the braking capability of the other.

Practicaly all present day tandem axle trailers have a single electrical braking system. An open circuit in the main line, connector.[.,.]. .Iadd.or .Iaddend.brake control or a short circuit anywhere in the electrical braking system will result in the loss of all brakes. A dual braking system should be used for tandem axle trailers for the same safety reasons that it is used in a car. Such a system, in conjunction with a sway sensing system.Iadd., .Iaddend.is shown in FIG. 6. Separate trailer front wheel brake wiring and rear wheel wiring is connected through separate plugs and connectors 28 and 29 to dual brake control 27. This figure shows the sway sensing pressure operated switches 7 and 11 connected in such a manner that the operation of either switch will apply braking power to all trailer brakes through diodes 30 and 31. When brake control 27 is operated.Iadd., .Iaddend.these diodes provide electrical isolation between the trailer front and rear axle brakes. In a case where the sway sensing system is not used.Iadd., .Iaddend.resistor 32, pressure operated switches 7 and 11, diodes 30 and 31 and the associated wiring are not used.

A dual braking system in which the sway sensing system applies power to the appropriate left or right trailer brakes only is shown in FIG. 7. Diodes 39, 40, 41, 42, 43, 44, 45 and 46, and resistors 35, 36, 37 and 38 provide electrical isolation for dual brake control 27 operation .[.and or.]. .Iadd.and/or .Iaddend.sway sensing switch 7 or 11 operation in a manner that provides maximum protection against possible circuit failure such as a short circuit or open circuit in the braking system.

Some simplification of the circuit shown in FIG. 7 can be realized by using double pole pressure operated switches 47 and 48 .Iadd.as .Iaddend.shown in FIG. 8. Basically the same type of electrical isolation against complete braking system failure in case of open or short circuit conditions is realized with the circuit shown in FIG. 8 as in FIG. 7.

Claims (3)

I claim:
1. A sway control system for controlling brakes of a towed vehicle in response to the detection of a sway condition comprising:
a hydraulic unit having first and second ends mounted to coupling means between the towed vehicle and a towing vehicle, which hydraulic unit includes first and second fluid passages associated with said first and second ends of the unit.Iadd., .Iaddend.each passage including a check valve shunted by a bypass restricted orifice and a pressure switch, and
an electric brake circuit for applying and releasing the brakes of the towed vehicle in response to said pressure switches being opened or closed, said hydraulic unit constituting a sway detection device for sensing the onset of a sway condition of a towed vehicle relative to a towing vehicle. .Iadd.
2. A sway control apparatus for controlling the brakes of a towed vehicle joined to a towing vehicle by a towing connection permitting turning movement of said towed and towing vehicles relative to each other about a yaw axis, said apparatus comprising:
signal generating means connected between said towed and towing vehicles for providing a signal having a characteristic responsive to the rate of change of the angle between said vehicles about said yaw axis; and,
actuator means for actuating said brakes in response to said signal, said actuator means being effective to actuate said brakes in response to a single turning movement between said vehicles in either direction about said yaw axis when said rate of angle change exceeds a predetermined magnitude. .Iaddend. .Iadd.3. The apparatus of claim 2 in which said signal generating means includes a first member, a second member movable relative to said first member, coupling means mounted on said towed and towing vehicles for causing said first and second members to move relative to each other as said towed and towing vehicles turn relative to each other about said yaw axis, and sensing means for providing a signal in response to a predetermined rate of said relative movement between said first and second members. .Iaddend. .Iadd.4. The apparatus of claim 3 in which said first member is a cylinder, said second member is a piston slidable in said cylinder, and said coupling means causes said piston to slide in said cylinder as said towed and towing vehicles turn relative to
each other about said yaw axis. .Iaddend. .Iadd.5. The apparatus of claim 4 in which said piston and said cylinder define a chamber for pressurizing a fluid, and said actuator means includes pressure responsive means for actuating said towed vehicle brakes in response to a predetermined fluid pressure in said chamber. .Iaddend. .Iadd.6. The apparatus of claim 5 in which said sensing means includes conduit means for conveying said fluid between said chamber and said pressure responsive means. .Iaddend. .Iadd.7. The apparatus of claim 6 in which said conduit means includes valves means for controlling the flow of fluid through said conduit means. .Iaddend. .Iadd.8. The apparatus of claim 7 in which said valve means includes a check valve .Iaddend. .Iadd.9. The apparatus of claim 7 in which said valve means includes an orifice. .Iaddend. .Iadd.10. The apparatus of claim 7 in which said valve means is adjustable. .Iaddend. .Iadd.11. The apparatus of claim 6 in which said conduit means includes a first fluid passage containing a check valve for permitting free flow from said chamber to said pressure responsive means while preventing flow from said pressure responsive means to said chamber, and a second fluid passage bypassing said check valve and containing an orifice for restricting flow between said chamber and said pressure responsive means. .Iaddend. .Iadd.12. The apparatus of claim 2 in which said signal generating means includes cylinder means having a first chamber and a second chamber, piston means cooperating with said cylinder means for pressurizing a fluid in said first chamber and said second chamber, and coupling means for causing fluid in said first chamber to be pressurized in response to relative turning movement between said vehicles in one direction about said yaw axis and fluid in said second chamber to be pressurized in response to relative turning movement between said vehicles in the other direction about said yaw axis, and in which said actuator means includes pressure responsive means for actuating said towed vehicle brakes in response to a predetermined fluid pressure in said first and second chambers. .Iaddend.
US06031091 1975-11-06 1979-04-18 Automatic trailer sway sensing and brake applying system Expired - Lifetime USRE30550E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US05629603 US4040507A (en) 1975-11-06 1975-11-06 Automatic trailer sway sensing and brake applying system
US06031091 USRE30550E (en) 1975-11-06 1979-04-18 Automatic trailer sway sensing and brake applying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06031091 USRE30550E (en) 1975-11-06 1979-04-18 Automatic trailer sway sensing and brake applying system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US05629603 Reissue US4040507A (en) 1975-11-06 1975-11-06 Automatic trailer sway sensing and brake applying system

Publications (1)

Publication Number Publication Date
USRE30550E true USRE30550E (en) 1981-03-24

Family

ID=26706824

Family Applications (1)

Application Number Title Priority Date Filing Date
US06031091 Expired - Lifetime USRE30550E (en) 1975-11-06 1979-04-18 Automatic trailer sway sensing and brake applying system

Country Status (1)

Country Link
US (1) USRE30550E (en)

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938542A (en) 1989-02-06 1990-07-03 Kline Wayne K Braking system and break-away braking system
US5346289A (en) * 1992-10-30 1994-09-13 Total Quality Enterprises, Inc. Control valve for hydraulic braking system
US5368372A (en) * 1992-10-30 1994-11-29 Total Quality Enterprises, Inc. Hydraulic brake system for an off-road vehicle
US6263261B1 (en) 1999-12-21 2001-07-17 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle
US6324446B1 (en) 1999-12-21 2001-11-27 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle
US6332104B1 (en) 1999-12-21 2001-12-18 Ford Global Technologies, Inc. Roll over detection for an automotive vehicle
US6397127B1 (en) 2000-09-25 2002-05-28 Ford Global Technologies, Inc. Steering actuated wheel lift identification for an automotive vehicle
US6523911B1 (en) * 1999-06-30 2003-02-25 Robert Bosch Gmbh Method and device for stabilizing a vehicle
US6654674B2 (en) 2001-11-21 2003-11-25 Ford Global Technologies, Llc Enhanced system for yaw stability control system to include roll stability control function
US20040010383A1 (en) * 2000-09-25 2004-01-15 Jianbo Lu Passive wheel lift identification for an automotive vehicle using operating input torque to wheel
US20040019418A1 (en) * 2000-09-25 2004-01-29 Jianbo Lu Wheel lifted and grounded identification for an automotive vehicle
US20040024512A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for desensitizing the activation criteria of a rollover control system
US20040024505A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for operating a rollover control system in a transition to a rollover condition
US20040024504A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for operating a rollover control system during an elevated condition
US20040024509A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for determining an amount of control for operating a rollover control system
US20040030481A1 (en) * 2002-08-05 2004-02-12 Salib Albert Chenouda System and method for sensitizing the activation criteria of a rollover control system
US20040030474A1 (en) * 2002-08-05 2004-02-12 Samuel Stepen Varghese Method and system for correcting sensor offsets
US20040030475A1 (en) * 2002-08-01 2004-02-12 Jianbo Lu System and method for characterizing the road bank for vehicle roll stability control
US20040059480A1 (en) * 2002-08-01 2004-03-25 Hrovat Davorin David System and method for detecting roll rate sensor fault
US20040064236A1 (en) * 2002-08-01 2004-04-01 Jianbo Lu System and method for determining a wheel departure angle for a rollover control system
US20040111208A1 (en) * 2002-08-01 2004-06-10 Ford Motor Company Wheel lift identification for an automotive vehicle
US20040162654A1 (en) * 2002-08-01 2004-08-19 Jianbo Lu System and method for determining a wheel departure angle for a rollover control system with respect to road roll rate and loading misalignment
US20040167701A1 (en) * 2003-02-26 2004-08-26 Mattson Keith Glenn Active driven wheel lift identification for an automotive vehicle
US6799092B2 (en) 2001-02-21 2004-09-28 Ford Global Technologies, Llc Rollover stability control for an automotive vehicle using rear wheel steering and brake control
US20040232652A1 (en) * 2003-05-23 2004-11-25 Namuduri Chandra Sekhar Trailer stability control apparatus
US20040254707A1 (en) * 2003-06-11 2004-12-16 Jianbo Lu System for determining vehicular relative roll angle during a potential rollover event
US6834218B2 (en) 2001-11-05 2004-12-21 Ford Global Technologies, Llc Roll over stability control for an automotive vehicle
US20050033486A1 (en) * 2001-11-05 2005-02-10 Paul Schmitt System and method for controlling a safety system of a vehicle in response to conditions sensed by tire sensors related applications
US20050080543A1 (en) * 2003-02-26 2005-04-14 Jianbo Lu Integrated sensing system
US6904350B2 (en) 2000-09-25 2005-06-07 Ford Global Technologies, Llc System for dynamically determining the wheel grounding and wheel lifting conditions and their applications in roll stability control
US20050261818A1 (en) * 2004-05-20 2005-11-24 Todd Brown Method and apparatus for determining adaptive brake gain parameters for use in a safety system of an automotive vehicle
US20050273240A1 (en) * 2004-06-02 2005-12-08 Brown Todd A System and method for determining desired yaw rate and lateral velocity for use in a vehicle dynamic control system
US7003389B2 (en) 2002-08-01 2006-02-21 Ford Global Technologies, Llc System and method for characterizing vehicle body to road angle for vehicle roll stability control
US20060085112A1 (en) * 2004-10-15 2006-04-20 Ford Global Technologies, Llc System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US20060089771A1 (en) * 2004-10-15 2006-04-27 Ford Global Technologies Llc System and method for qualitatively determining vehicle loading conditions
US20060129291A1 (en) * 2004-12-13 2006-06-15 Ford Global Technologies, Llc System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US20060173584A1 (en) * 2003-06-30 2006-08-03 Frank Einig Method and apparatus for detecting and correcting trailer induced yaw movements in a towing vehicle
US7132937B2 (en) 2000-09-25 2006-11-07 Ford Global Technologies, Llc Wheel lift identification for an automotive vehicle using passive and active detection
US20070067085A1 (en) * 2005-09-19 2007-03-22 Ford Global Technologies Llc Integrated vehicle control system using dynamically determined vehicle conditions
US20070106443A1 (en) * 2005-11-09 2007-05-10 Ford Global Technologies Llc System for determining torque and tire forces using integrated sensing system
US20070106442A1 (en) * 2005-11-09 2007-05-10 Ford Global Technologies Llc System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls
US20080036296A1 (en) * 2006-08-11 2008-02-14 Robert Bosch Gmbh Closed-loop control for trailer sway mitigation
USRE40268E1 (en) 2000-09-25 2008-04-29 Ford Global Technologies, Llc Wheel lift identification for an automotive vehicle
USRE40496E1 (en) 2002-03-04 2008-09-09 Ford Global Technologies, Llc Attitude sensing system for an automotive vehicle relative to the road
US7480547B2 (en) 2005-04-14 2009-01-20 Ford Global Technologies, Llc Attitude sensing system for an automotive vehicle relative to the road
US20090306861A1 (en) * 2006-06-27 2009-12-10 Andreas Schumann Method and Control Device for Identifying a Trailer Operation of a Towing Vehicle
US7640081B2 (en) 2004-10-01 2009-12-29 Ford Global Technologies, Llc Roll stability control using four-wheel drive
US20110022282A1 (en) * 2009-07-24 2011-01-27 Robert Bosch Gmbh Trailer sway mitigation using measured distance between a trailer and a tow vehicle
US20110029210A1 (en) * 2009-07-30 2011-02-03 Wu Hsien-Cheng Holistic control for stabilizing vehicle-trailer swaying
US20120130573A1 (en) * 2010-11-19 2012-05-24 Robert Bosch Gmbh Energy management for hybrid electric vehicle during trailer sway
US9061663B2 (en) 2010-10-27 2015-06-23 Robert Bosch Gmbh Trailer sway mitigation using torque vectoring
US9162656B2 (en) 2003-02-26 2015-10-20 Ford Global Technologies, Llc Active driven wheel lift identification for an automotive vehicle

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277791A (en) * 1965-03-30 1966-10-11 Gen Electric Motion responsive devices
US3288240A (en) * 1964-07-29 1966-11-29 Richard M Franzel Automatic stability control means for towed vehicles
US3398991A (en) * 1966-12-30 1968-08-27 Pullman Inc Automatic vehicle control system
US3736894A (en) * 1971-11-03 1973-06-05 Farah Mfg Co Inc Work feed control
US3758165A (en) * 1971-12-02 1973-09-11 J Savelli Trailer sway control apparatus
US3796288A (en) * 1972-10-10 1974-03-12 H Hollnagel One or two way energy (shock) absorber
US3810521A (en) * 1970-08-18 1974-05-14 A Sparr Anti-fishtail device for trailers
US3861717A (en) * 1973-10-01 1975-01-21 Howard W Knox Sway control for towed vehicles having variable control feature
US3861696A (en) * 1972-06-01 1975-01-21 Bofors Ab Device for damping rocking movements occurring in a chassis
US3894773A (en) * 1972-01-05 1975-07-15 Adaptronics Inc Differential braking system for tractor trailer trucks
US3948544A (en) * 1975-02-24 1976-04-06 The Bendix Corporation Surge brake combination vehicle stabilizer
US3993362A (en) * 1973-07-19 1976-11-23 Kamins Jerome H Anti-jackknifing and skidding control system
US3993360A (en) * 1975-03-26 1976-11-23 Clarence Kirk Greene Apparatus for safety braking of vehicles

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288240A (en) * 1964-07-29 1966-11-29 Richard M Franzel Automatic stability control means for towed vehicles
US3277791A (en) * 1965-03-30 1966-10-11 Gen Electric Motion responsive devices
US3398991A (en) * 1966-12-30 1968-08-27 Pullman Inc Automatic vehicle control system
US3810521A (en) * 1970-08-18 1974-05-14 A Sparr Anti-fishtail device for trailers
US3736894A (en) * 1971-11-03 1973-06-05 Farah Mfg Co Inc Work feed control
US3758165A (en) * 1971-12-02 1973-09-11 J Savelli Trailer sway control apparatus
US3894773A (en) * 1972-01-05 1975-07-15 Adaptronics Inc Differential braking system for tractor trailer trucks
US3861696A (en) * 1972-06-01 1975-01-21 Bofors Ab Device for damping rocking movements occurring in a chassis
US3796288A (en) * 1972-10-10 1974-03-12 H Hollnagel One or two way energy (shock) absorber
US3993362A (en) * 1973-07-19 1976-11-23 Kamins Jerome H Anti-jackknifing and skidding control system
US3861717A (en) * 1973-10-01 1975-01-21 Howard W Knox Sway control for towed vehicles having variable control feature
US3948544A (en) * 1975-02-24 1976-04-06 The Bendix Corporation Surge brake combination vehicle stabilizer
US3993360A (en) * 1975-03-26 1976-11-23 Clarence Kirk Greene Apparatus for safety braking of vehicles

Cited By (114)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938542A (en) 1989-02-06 1990-07-03 Kline Wayne K Braking system and break-away braking system
US5346289A (en) * 1992-10-30 1994-09-13 Total Quality Enterprises, Inc. Control valve for hydraulic braking system
US5368372A (en) * 1992-10-30 1994-11-29 Total Quality Enterprises, Inc. Hydraulic brake system for an off-road vehicle
US6523911B1 (en) * 1999-06-30 2003-02-25 Robert Bosch Gmbh Method and device for stabilizing a vehicle
US6324446B1 (en) 1999-12-21 2001-11-27 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle
US6332104B1 (en) 1999-12-21 2001-12-18 Ford Global Technologies, Inc. Roll over detection for an automotive vehicle
US6338012B2 (en) 1999-12-21 2002-01-08 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle
US20050177296A1 (en) * 1999-12-21 2005-08-11 Todd Brown Roll over stability control for an automotive vehicle
US6496758B2 (en) 1999-12-21 2002-12-17 Ford Global Technologies, Inc. Rollover stability control for an automotive vehicle using front wheel actuators
US6263261B1 (en) 1999-12-21 2001-07-17 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle
US6529803B2 (en) 1999-12-21 2003-03-04 Ford Global Technologies, Inc. Roll over stability control for an automotive vehicle having rear wheel steering
US7130735B2 (en) 1999-12-21 2006-10-31 Ford Global Technologies, Llc Roll over stability control for an automotive vehicle
US20040010383A1 (en) * 2000-09-25 2004-01-15 Jianbo Lu Passive wheel lift identification for an automotive vehicle using operating input torque to wheel
US20040019418A1 (en) * 2000-09-25 2004-01-29 Jianbo Lu Wheel lifted and grounded identification for an automotive vehicle
US7109856B2 (en) 2000-09-25 2006-09-19 Ford Global Technologies, Llc Wheel lifted and grounded identification for an automotive vehicle
US7132937B2 (en) 2000-09-25 2006-11-07 Ford Global Technologies, Llc Wheel lift identification for an automotive vehicle using passive and active detection
US7233236B2 (en) 2000-09-25 2007-06-19 Ford Global Technologies, Llc Passive wheel lift identification for an automotive vehicle using operating input torque to wheel
USRE40268E1 (en) 2000-09-25 2008-04-29 Ford Global Technologies, Llc Wheel lift identification for an automotive vehicle
US6397127B1 (en) 2000-09-25 2002-05-28 Ford Global Technologies, Inc. Steering actuated wheel lift identification for an automotive vehicle
US6904350B2 (en) 2000-09-25 2005-06-07 Ford Global Technologies, Llc System for dynamically determining the wheel grounding and wheel lifting conditions and their applications in roll stability control
US6799092B2 (en) 2001-02-21 2004-09-28 Ford Global Technologies, Llc Rollover stability control for an automotive vehicle using rear wheel steering and brake control
US6834218B2 (en) 2001-11-05 2004-12-21 Ford Global Technologies, Llc Roll over stability control for an automotive vehicle
US20050033486A1 (en) * 2001-11-05 2005-02-10 Paul Schmitt System and method for controlling a safety system of a vehicle in response to conditions sensed by tire sensors related applications
US7676307B2 (en) * 2001-11-05 2010-03-09 Ford Global Technologies System and method for controlling a safety system of a vehicle in response to conditions sensed by tire sensors related applications
US20060064213A1 (en) * 2001-11-21 2006-03-23 Jianbo Lu Enhanced system for yaw stability control system to include roll stability control function
US7136730B2 (en) 2001-11-21 2006-11-14 Ford Global Technologies, Llc Enhanced system for yaw stability control system to include roll stability control function
US20040117085A1 (en) * 2001-11-21 2004-06-17 Jianbo Lu Enhanced system for yaw stability control system to include roll stability control function
US6654674B2 (en) 2001-11-21 2003-11-25 Ford Global Technologies, Llc Enhanced system for yaw stability control system to include roll stability control function
US7027902B2 (en) 2001-11-21 2006-04-11 Ford Global Technologies, Llc Enhanced system for yaw stability control system to include roll stability control function
USRE40496E1 (en) 2002-03-04 2008-09-09 Ford Global Technologies, Llc Attitude sensing system for an automotive vehicle relative to the road
US7085639B2 (en) 2002-08-01 2006-08-01 Ford Global Technologies, Llc System and method for characterizing the road bank for vehicle roll stability control
US20040162654A1 (en) * 2002-08-01 2004-08-19 Jianbo Lu System and method for determining a wheel departure angle for a rollover control system with respect to road roll rate and loading misalignment
US20040111208A1 (en) * 2002-08-01 2004-06-10 Ford Motor Company Wheel lift identification for an automotive vehicle
US20040059480A1 (en) * 2002-08-01 2004-03-25 Hrovat Davorin David System and method for detecting roll rate sensor fault
US7079928B2 (en) 2002-08-01 2006-07-18 Ford Global Technologies, Llc System and method for determining a wheel departure angle for a rollover control system with respect to road roll rate and loading misalignment
US6941205B2 (en) 2002-08-01 2005-09-06 Ford Global Technologies, Llc. System and method for deteching roll rate sensor fault
US20040064236A1 (en) * 2002-08-01 2004-04-01 Jianbo Lu System and method for determining a wheel departure angle for a rollover control system
US7194351B2 (en) 2002-08-01 2007-03-20 Ford Global Technologies, Llc System and method for determining a wheel departure angle for a rollover control system
US20040030475A1 (en) * 2002-08-01 2004-02-12 Jianbo Lu System and method for characterizing the road bank for vehicle roll stability control
US7302331B2 (en) 2002-08-01 2007-11-27 Ford Global Technologies, Inc. Wheel lift identification for an automotive vehicle
US7003389B2 (en) 2002-08-01 2006-02-21 Ford Global Technologies, Llc System and method for characterizing vehicle body to road angle for vehicle roll stability control
US7277787B2 (en) 2002-08-05 2007-10-02 Ford Motor Company System and method for desensitizing the activation criteria of a rollover control system
US7120528B2 (en) 2002-08-05 2006-10-10 Ford Global Technologies, Llc System and method for operating a rollover control system in a transition to a rollover condition
US20040024509A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for determining an amount of control for operating a rollover control system
US20050256628A1 (en) * 2002-08-05 2005-11-17 Salib Albert C System and method for operating a rollover control system during an elevated condition
US20040024504A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for operating a rollover control system during an elevated condition
US20050246085A1 (en) * 2002-08-05 2005-11-03 Salib Albert C System and method for operating a rollover control system in a transition to a rollover condition
US6961648B2 (en) 2002-08-05 2005-11-01 Ford Motor Company System and method for desensitizing the activation criteria of a rollover control system
US20040030481A1 (en) * 2002-08-05 2004-02-12 Salib Albert Chenouda System and method for sensitizing the activation criteria of a rollover control system
US7430468B2 (en) 2002-08-05 2008-09-30 Ford Global Technologies, Llc System and method for sensitizing the activation criteria of a rollover control system
US7085642B2 (en) 2002-08-05 2006-08-01 Ford Global Technologies, Llc Method and system for correcting sensor offsets
US20040024505A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for operating a rollover control system in a transition to a rollover condition
US7096103B2 (en) 2002-08-05 2006-08-22 Ford Motor Company System and method for operating a rollover control system during an elevated condition
US20040030474A1 (en) * 2002-08-05 2004-02-12 Samuel Stepen Varghese Method and system for correcting sensor offsets
US6963797B2 (en) 2002-08-05 2005-11-08 Ford Global Technologies, Llc System and method for determining an amount of control for operating a rollover control system
US20040024512A1 (en) * 2002-08-05 2004-02-05 Salib Albert Chenouda System and method for desensitizing the activation criteria of a rollover control system
US7653471B2 (en) 2003-02-26 2010-01-26 Ford Global Technologies, Llc Active driven wheel lift identification for an automotive vehicle
US9162656B2 (en) 2003-02-26 2015-10-20 Ford Global Technologies, Llc Active driven wheel lift identification for an automotive vehicle
US7239949B2 (en) 2003-02-26 2007-07-03 Ford Global Technologies, Llc Integrated sensing system
US20040167701A1 (en) * 2003-02-26 2004-08-26 Mattson Keith Glenn Active driven wheel lift identification for an automotive vehicle
US20050080543A1 (en) * 2003-02-26 2005-04-14 Jianbo Lu Integrated sensing system
US20040232652A1 (en) * 2003-05-23 2004-11-25 Namuduri Chandra Sekhar Trailer stability control apparatus
US7354056B2 (en) * 2003-05-23 2008-04-08 General Motors Corporation Trailer stability control apparatus
US20040254707A1 (en) * 2003-06-11 2004-12-16 Jianbo Lu System for determining vehicular relative roll angle during a potential rollover event
US7136731B2 (en) 2003-06-11 2006-11-14 Ford Global Technologies, Llc System for determining vehicular relative roll angle during a potential rollover event
US7272481B2 (en) 2003-06-30 2007-09-18 Kelsey-Hayes Company Method and apparatus for detecting and correcting trailer induced yaw movements in a towing vehicle
US20060173584A1 (en) * 2003-06-30 2006-08-03 Frank Einig Method and apparatus for detecting and correcting trailer induced yaw movements in a towing vehicle
US20050261818A1 (en) * 2004-05-20 2005-11-24 Todd Brown Method and apparatus for determining adaptive brake gain parameters for use in a safety system of an automotive vehicle
US7308350B2 (en) 2004-05-20 2007-12-11 Ford Global Technologies, Llc Method and apparatus for determining adaptive brake gain parameters for use in a safety system of an automotive vehicle
US20050273240A1 (en) * 2004-06-02 2005-12-08 Brown Todd A System and method for determining desired yaw rate and lateral velocity for use in a vehicle dynamic control system
US7451032B2 (en) 2004-06-02 2008-11-11 Ford Global Technologies, Llc System and method for determining desired yaw rate and lateral velocity for use in a vehicle dynamic control system
US7640081B2 (en) 2004-10-01 2009-12-29 Ford Global Technologies, Llc Roll stability control using four-wheel drive
US7877201B2 (en) 2004-10-15 2011-01-25 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US7877200B2 (en) 2004-10-15 2011-01-25 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US20060085112A1 (en) * 2004-10-15 2006-04-20 Ford Global Technologies, Llc System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US7715965B2 (en) 2004-10-15 2010-05-11 Ford Global Technologies System and method for qualitatively determining vehicle loading conditions
US20100106376A1 (en) * 2004-10-15 2010-04-29 Ford Global Technologies, Llc System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US20060089771A1 (en) * 2004-10-15 2006-04-27 Ford Global Technologies Llc System and method for qualitatively determining vehicle loading conditions
US7877178B2 (en) 2004-10-15 2011-01-25 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US7899594B2 (en) 2004-10-15 2011-03-01 Ford Global Technologies System and method for qualitatively determining vehicle loading conditions
US7668645B2 (en) 2004-10-15 2010-02-23 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US7877199B2 (en) 2004-10-15 2011-01-25 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US8050857B2 (en) 2004-10-15 2011-11-01 Ford Global Technologies System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system
US7660654B2 (en) 2004-12-13 2010-02-09 Ford Global Technologies, Llc System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US8346433B2 (en) 2004-12-13 2013-01-01 Ford Global Technologies System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US8219282B2 (en) 2004-12-13 2012-07-10 Ford Global Technologies System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US20060129291A1 (en) * 2004-12-13 2006-06-15 Ford Global Technologies, Llc System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US8005596B2 (en) 2004-12-13 2011-08-23 Ford Global Technologies System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
US7480547B2 (en) 2005-04-14 2009-01-20 Ford Global Technologies, Llc Attitude sensing system for an automotive vehicle relative to the road
US8352143B2 (en) 2005-09-19 2013-01-08 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US7590481B2 (en) 2005-09-19 2009-09-15 Ford Global Technologies, Llc Integrated vehicle control system using dynamically determined vehicle conditions
US8346452B2 (en) 2005-09-19 2013-01-01 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US8442720B2 (en) 2005-09-19 2013-05-14 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US8311706B2 (en) 2005-09-19 2012-11-13 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US20100017061A1 (en) * 2005-09-19 2010-01-21 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US20100017059A1 (en) * 2005-09-19 2010-01-21 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US20070067085A1 (en) * 2005-09-19 2007-03-22 Ford Global Technologies Llc Integrated vehicle control system using dynamically determined vehicle conditions
US20100017066A1 (en) * 2005-09-19 2010-01-21 Ford Global Technologies Integrated vehicle control system using dynamically determined vehicle conditions
US20070106443A1 (en) * 2005-11-09 2007-05-10 Ford Global Technologies Llc System for determining torque and tire forces using integrated sensing system
US7600826B2 (en) 2005-11-09 2009-10-13 Ford Global Technologies, Llc System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls
US8121758B2 (en) 2005-11-09 2012-02-21 Ford Global Technologies System for determining torque and tire forces using integrated sensing system
US20070106442A1 (en) * 2005-11-09 2007-05-10 Ford Global Technologies Llc System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls
US8005592B2 (en) 2005-11-09 2011-08-23 Ford Global Technologies System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls
US20100036557A1 (en) * 2005-11-09 2010-02-11 Ford Global Technologies System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls
US20090306861A1 (en) * 2006-06-27 2009-12-10 Andreas Schumann Method and Control Device for Identifying a Trailer Operation of a Towing Vehicle
US8740317B2 (en) 2006-08-11 2014-06-03 Robert Bosch Gmbh Closed-loop control for trailer sway mitigation
US20080036296A1 (en) * 2006-08-11 2008-02-14 Robert Bosch Gmbh Closed-loop control for trailer sway mitigation
US8838353B2 (en) 2009-07-24 2014-09-16 Robert Bosch Gmbh Trailer sway mitigation using measured distance between a trailer and a tow vehicle
US20110022282A1 (en) * 2009-07-24 2011-01-27 Robert Bosch Gmbh Trailer sway mitigation using measured distance between a trailer and a tow vehicle
US20110029210A1 (en) * 2009-07-30 2011-02-03 Wu Hsien-Cheng Holistic control for stabilizing vehicle-trailer swaying
US8326504B2 (en) * 2009-07-30 2012-12-04 Robert Bosch Gmbh Holistic control for stabilizing vehicle-trailer swaying
US9061663B2 (en) 2010-10-27 2015-06-23 Robert Bosch Gmbh Trailer sway mitigation using torque vectoring
US8311693B2 (en) * 2010-11-19 2012-11-13 Robert Bosch Gmbh Energy management for hybrid electric vehicle during trailer sway
US20120130573A1 (en) * 2010-11-19 2012-05-24 Robert Bosch Gmbh Energy management for hybrid electric vehicle during trailer sway

Similar Documents

Publication Publication Date Title
US3574414A (en) Brake control system for a tractor drawn trailer
US3350142A (en) Actuator system
US3398991A (en) Automatic vehicle control system
US4462642A (en) Vehicle brake system
US4678041A (en) Fire fighting service vehicle
US5934764A (en) Method for limiting brake cylinder pressure on locomotives equipped with distributive power and electronic brake systems
US4673222A (en) Tractor air pressure braking system
US20040012249A1 (en) Electronic control air management with parking brake and trailer supply control
US3948544A (en) Surge brake combination vehicle stabilizer
US4223767A (en) Anti-jackknifing method and apparatus
US4316640A (en) Electro pneumatic brake system for railway car
US3618983A (en) Antijackknifing system
US6582030B2 (en) Back-up braking in electro-hydraulic (EHB) braking system
US3972543A (en) Combination vehicle yaw stabilizer
US5429425A (en) Wheel brake unit for a modular brake system
US4231442A (en) Apparatus for braking a train of vehicles
US4616881A (en) Tractor-trailer brake system including a trailer brake control valve
DE4327759A1 (en) Air brake system for commercial vehicles
US4568129A (en) Brake system for vehicles with trailers
US4671578A (en) Fluid pressure responsive brake for the trailer of a vehicle
DE19755431A1 (en) vehicle brake system
EP1571061A1 (en) Electrically controlled pneumatic braking system for a vehicle
US4550953A (en) Electro-pneumatic control for a vehicle fluid pressure braking system
DE19750977A1 (en) Car braking installation
EP1504975A1 (en) Brake system for a vehicle using a pressure medium