US Patent No: RE30550

Number of patents in Portfolio can not be more than 2000

Automatic trailer sway sensing and brake applying system

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HOWARD, DURRELL U.SAN ANTONIO, TX3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Reise, Herman A Lakewood, NJ 1 72

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Patent Info (Count) # Cites Year
 
FORD GLOBAL TECHNOLOGIES, LLC (35)
6,799,092 Rollover stability control for an automotive vehicle using rear wheel steering and brake control 54 2001
6,529,803 Roll over stability control for an automotive vehicle having rear wheel steering 61 2001
6,654,674 Enhanced system for yaw stability control system to include roll stability control function 60 2002
6,834,218 Roll over stability control for an automotive vehicle 38 2003
7,136,731 System for determining vehicular relative roll angle during a potential rollover event 4 2003
7,233,236 Passive wheel lift identification for an automotive vehicle using operating input torque to wheel 8 2003
7,132,937 Wheel lift identification for an automotive vehicle using passive and active detection 17 2003
7,109,856 Wheel lifted and grounded identification for an automotive vehicle 9 2003
6,904,350 System for dynamically determining the wheel grounding and wheel lifting conditions and their applications in roll stability control 15 2003
7,194,351 System and method for determining a wheel departure angle for a rollover control system 2 2003
7,085,639 System and method for characterizing the road bank for vehicle roll stability control 5 2003
7,003,389 System and method for characterizing vehicle body to road angle for vehicle roll stability control 4 2003
7,085,642 Method and system for correcting sensor offsets 13 2003
7,430,468 System and method for sensitizing the activation criteria of a rollover control system 2 2003
6,941,205 System and method for deteching roll rate sensor fault 2 2003
7,027,902 Enhanced system for yaw stability control system to include roll stability control function 6 2003
7,239,949 Integrated sensing system 29 2004
7,079,928 System and method for determining a wheel departure angle for a rollover control system with respect to road roll rate and loading misalignment 12 2004
7,653,471 Active driven wheel lift identification for an automotive vehicle 7 2004
RE40496 Attitude sensing system for an automotive vehicle relative to the road 0 2004
7,308,350 Method and apparatus for determining adaptive brake gain parameters for use in a safety system of an automotive vehicle 6 2004
7,451,032 System and method for determining desired yaw rate and lateral velocity for use in a vehicle dynamic control system 9 2004
7,676,307 System and method for controlling a safety system of a vehicle in response to conditions sensed by tire sensors related applications 1 2004
7,640,081 Roll stability control using four-wheel drive 2 2004
7,668,645 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 5 2004
7,715,965 System and method for qualitatively determining vehicle loading conditions 1 2004
7,660,654 System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system 1 2004
RE40268 Wheel lift identification for an automotive vehicle 0 2004
7,130,735 Roll over stability control for an automotive vehicle 8 2005
7,480,547 Attitude sensing system for an automotive vehicle relative to the road 8 2005
7,120,528 System and method for operating a rollover control system in a transition to a rollover condition 11 2005
7,590,481 Integrated vehicle control system using dynamically determined vehicle conditions 43 2005
7,136,730 Enhanced system for yaw stability control system to include roll stability control function 11 2005
8,121,758 System for determining torque and tire forces using integrated sensing system 1 2005
7,600,826 System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls 3 2005
 
FORD GLOBAL TECHNOLOGIES, INC. (19)
6,332,104 Roll over detection for an automotive vehicle 83 1999
6,324,446 Roll over stability control for an automotive vehicle 71 1999
6,263,261 Roll over stability control for an automotive vehicle 89 1999
6,397,127 Steering actuated wheel lift identification for an automotive vehicle 72 2000
6,496,758 Rollover stability control for an automotive vehicle using front wheel actuators 67 2001
8,442,720 Integrated vehicle control system using dynamically determined vehicle conditions 1 2009
8,352,143 Integrated vehicle control system using dynamically determined vehicle conditions 0 2009
8,346,452 Integrated vehicle control system using dynamically determined vehicle conditions 0 2009
8,311,706 Integrated vehicle control system using dynamically determined vehicle conditions 1 2009
8,005,592 System for dynamically determining axle loadings of a moving vehicle using integrated sensing system and its application in vehicle dynamics controls 0 2009
8,219,282 System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system 0 2009
8,005,596 System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system 0 2009
8,050,857 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 0 2010
7,877,178 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 2 2010
7,877,199 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 0 2010
7,877,200 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 2 2010
7,877,201 System and method for dynamically determining vehicle loading and vertical loading distance for use in a vehicle dynamic control system 2 2010
7,899,594 System and method for qualitatively determining vehicle loading conditions 3 2010
8,346,433 System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system 0 2012
 
FORD MOTOR COMPANY (5)
6,338,012 Roll over stability control for an automotive vehicle 82 2001
6,961,648 System and method for desensitizing the activation criteria of a rollover control system 9 2003
7,302,331 Wheel lift identification for an automotive vehicle 13 2003
7,096,103 System and method for operating a rollover control system during an elevated condition 11 2005
7,277,787 System and method for desensitizing the activation criteria of a rollover control system 1 2005
 
ROBERT BOSCH LLC (3)
8,838,353 Trailer sway mitigation using measured distance between a trailer and a tow vehicle 0 2009
8,326,504 Holistic control for stabilizing vehicle-trailer swaying 3 2009
8,311,693 Energy management for hybrid electric vehicle during trailer sway 0 2010
 
ROBERT BOSCH GMBH (2)
6,523,911 Method and device for stabilizing a vehicle 28 2001
8,740,317 Closed-loop control for trailer sway mitigation 0 2006
 
Total Quality Enterprises, Inc. (2)
5,346,289 Control valve for hydraulic braking system 9 1992
5,368,372 Hydraulic brake system for an off-road vehicle 4 1993
 
Automatic Equipment Manufacturing Company (1)
D546735 Ball-and-socket joint for tow bar 5 2006
 
CNH AMERICA LLC (1)
4,681,335 Center pivot hitch assembly 15 1986
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
7,354,056 Trailer stability control apparatus 5 2003
 
KELSEY-HAYES COMPANY (1)
7,272,481 Method and apparatus for detecting and correcting trailer induced yaw movements in a towing vehicle 13 2005
 
VOLVO CAR CORPORATION (1)
6,963,797 System and method for determining an amount of control for operating a rollover control system 12 2003
 
Other [Check patent profile for assignment information] (1)
4,938,542 Braking system and break-away braking system 3 1989