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8177010 |
Device and method for carrying out wheelbase adjustment for utility vehicles
An apparatus and method for effecting wheelbase adjustment for utility vehicles having one or more axles with wheels, includes one or more adjustment mechanisms to which compressed air can be...
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8104775 |
Dolly with elastically suspended load-bearing surface
A dolly or pallet equipped with an elastically suspended load-bearing surface so as to responsively move downwards as materials are loaded and move upwards as loads are removed thereby reducing...
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8096568 |
Hydropneumatic axle suspension for vehicles
The hydropneumatic axle suspension for vehicles, especially the front axle thereof, cooperates with at least one suspension cylinder (10) connected to a hydraulic accumulator (26; 24) on both its...
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8079310 |
Vertical position compensating device for a vehicle
A vertical position compensating device for a vehicle, a vehicle using the device, and a method for controlling the vertical position of a vehicle. The vehicle has a wheel set mounted on a chassis...
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8047551 |
Multi-stage height control valve including position sensitive pilot signal and pressure boost for vehicle air springs
A multi-stage height control valve for a pneumatic control system of a vehicle includes an air reservoir port, an exhaust port, an air spring port and a pilot port operatively connected to a rotor...
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7963529 |
Counter-rotating motors with linear output
An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a...
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7950674 |
Ride height leveling control for dual air spring configuration
An air suspension system is configured to adjust and maintain a desired vehicle ride height and spring rate. The air suspension system includes a plurality of air spring assemblies that each...
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7934725 |
Vehicle system and method for accessing denied terrain
A surface vehicle capable of overcoming obstacles is disclosed in which the vehicle accelerates vertically while having a horizontal velocity. The vehicle has a frame and at least three wheels...
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7899594 |
System and method for qualitatively determining vehicle loading conditions
A control system (18) and method for an automotive vehicle (10) includes a controller (26) that determines whether or not a potential load change has occurred in a load change detector (59). A load...
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7860623 |
Method for increasing the driving stability of a motor vehicle
A process for increasing the stability of a vehicle upon acceleration on a roadway with a non-homogenous coefficient of friction, whereby a drive wheel is acted on by a braking force on a side with...
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7826948 |
Vehicle loading based vehicle dynamic and safety related characteristic adjusting system
A method of controlling a controllable chassis system or a safety system (44) for a vehicle (10) includes determining an added mass placed on the vehicle and relative to a known vehicle mass. A...
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7761258 |
Method of monitoring a load condition of a vehicle
A system for indicating the state of load of a vehicle having suspension components comprising: at least one transducer mountable on a single suspension component such that a signal relating to the...
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7751959 |
Semi-active suspension system with anti-roll for a vehicle
A suspension system includes four electronically controlled actuators, one at each of the four wheels. The actuators are each controlled by an electronic control unit. The left front and right...
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7731203 |
Method for load-dependent air quality control in a pneumatic spring system
According to a method for controlling the air volume in a closed pneumatic spring system of a vehicle, an air-powered pump supplies at least two pneumatic springs and/or a compressed air reservoir...
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7726665 |
Suspension system
A suspension system for an agricultural or construction industry vehicle is described. The suspension system comprises two hydraulic cylinders, which support a frame in relation to an axle of the...
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7715965 |
System and method for qualitatively determining vehicle loading conditions
A control system (18) and method for an automotive vehicle (10) includes a controller (26) that determines whether or not a potential load change has occurred in a load change detector (59). A load...
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7681898 |
Composite suspension system for a vehicle
A composite suspension system for a vehicle includes a mechanical suspension system supporting the body of the vehicle with respect to an axle and a pneumatic suspension system to selectively...
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7677339 |
Vehicle suspension arrangement
An arrangement for a suspension for a load carrying vehicle is provided. The suspension is provided with air springs and comprises at least one front axle and at least two rear axles, and each rear...
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7660654 |
System for dynamically determining vehicle rear/trunk loading for use in a vehicle control system
A control system (18) and method for an automotive vehicle (10) includes a pitch rate sensor (37) generating a pitch rate signal, a longitudinal acceleration sensor (36) generating a longitudinal...
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7621538 |
Air spring assembly with localized signal processing, system and method utilizing same, as well as operating module therefor
An operating module for localized signal processing at a corner of a vehicle includes a housing, a valve assembly or a sensor, and a signal processing device. The operating module can be used in...
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7617881 |
Articulated crawler tractor
An articulated dozer with a four point independent suspension system between a chassis and two support frames is described. The chassis includes a front chassis portion and a rear chassis portion...
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7590478 |
Method for controlling the quantity of air in a self-contained air supply system for a chassis
In order to simplify air flow control in a self-contained air supply system, an average control speed is calculated on the basis of a defined movement of the air springs (3, 4) and compared with an...
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7497452 |
Hydro-pneumatic vehicle suspension system with a double acting cylinder and accumulators
A suspension system dampens motion between two components of a vehicle, such as the wheels and the chassis. An assembly of a cylinder and a piston is connected to both components. The piston...
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7494133 |
Four wheel chassis for a floor conveyor, a counterweight stacker in particular
A four wheel chassis for a floor conveyor, a counterweight stacker in particular, in which the ends of the front and rear axle or the wheels, respectively, are supported with respect to the vehicle...
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7469175 |
Arrangement and method for calculating the chassis height at a vehicle
Method and device for calculating chassis height of a vehicle that has at least three air-suspended wheel axles (2, 3, 4). The device includes a control unit and two level sensors (9, 10). The...
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7431309 |
Ground contact load control apparatus for a vehicle
In a ground contact load control apparatus for a vehicle having front and rear, left and right load bearing means (11, 12, 13, 14) which support the ground contact load of each of the front and...
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7357395 |
Device for controlling suspension performance of a vehicle having variable axle loads
A device for controlling suspension performance in a vehicle having variable loads on an axle, a level control system, and a hydropneumatic suspension apparatus between unsprung and sprung masses....
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7226064 |
Locking anti-motion suspension
A skid steer vehicle has a suspension that includes a control arm pivotally coupled to the vehicle chassis that is supported by a hydraulic cylinder connected to an accumulator to provide...
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7219779 |
Hydro-pneumatic suspension system
A hydro-pneumatic suspension system includes one or more hydraulic suspension cylinders mounted between the vehicle body and the axle. Each cylinder includes a piston chamber and rod chamber, each...
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7204478 |
Height control valve with universal mounting for a suspension system
A height control valve for use in a vehicle suspension system for controlling the ride height of the trailer, the height control valve provided with a universal mounting for allowing greater...
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7192034 |
Load based suspension motion limiting
An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there...
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7192033 |
Trailing arm suspension and height control system with motorized valve therefor
A trailing arm suspension for a vehicle. The trailing arm suspension having a height control system for controlling the ride height of the suspension relative to the vehicle. The height control...
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7163208 |
Hydropneumatic suspension system for vehicles
A hydropneumatic suspension system for a vehicle with a level control, in particular for the front axle of a tractor, includes a first 2/2 directional control valve having a regulating-up function...
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7048280 |
Hydropneumatic axle suspension for vehicles having greatly varying axle loads
A hydropneumatic axle suspension for vehicles having greatly varying axle loads, in particular for front axles on tractors having hydraulic suspension cylinders, which are connected to...
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7028996 |
Vehicle suspension system and height control valve therefor
A height control valve for controlling the relative height between a vehicle frame and a trailing arm suspension. The height control valve comprises a housing defining an interior chamber and...
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6997464 |
Lift axle suspension
A lift axle suspension includes an axle and a first suspension air bag acting one of directly or indirectly in a downward direction upon the axle. A lever is provided having a first end, a second...
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6959932 |
Electronic height control
A method for controlling the ride height in a suspension of an over the highway truck or tractor based on rear axle load. A load on the rear axle is measured. An optimum ride height is calculated...
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6948721 |
Variable leveling valve apparatus for a vehicle
The invention is disclosed to variably control the amount of compressed air flowing per unit hour depending on the change in the level position of the wheel axles in a moving vehicle when the...
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6840279 |
Pneumatic switching valve for systems for lifting and lowering the body of vehicles including air suspension
A pneumatic switching valve (1) for systems for lifting and lowering the body of a vehicle including air suspension includes a mechanical actuation element (33) for adjusting a lifting position, a...
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6824146 |
Air suspension system of a vehicle
An air suspension system for a vehicle wherein a valve means for varying the resilience of an air spring in response to changes of vehicle height is integrally formed with an air spring to be...
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6786492 |
Method and device for controlling the suspension performance in vehicles having hydropneumatic suspension devices and highly variable axle-load ratios
A method of controlling suspension performance in vehicles having hydropneumatic suspension devices between suspended masses and unsuspended masses and extremely variable axle load ratios, in...
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6783138 |
Actuator for adjusting the ride of a vehicle
An actuator assembly for moving an air valve between a position in which air is admitted to an air bag mounted in a vehicle and another position in which air is released from the air bag. The...
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6648308 |
Spring apparatus
The invention relates to a vehicle spring apparatus comprising housing having fluid sealed therein. The housing comprises a cylinder with a slidably fitted piston and a piston rod connected at one...
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6623016 |
Control system for lifting and lowering the body of an air-suspended vehicle including level control
A control system is designed to lift and lower the body of an air-suspended vehicle including an axle and level control. The system includes a source of compressed air, a plurality of...
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6513820 |
Air spring system for a two axle motor vehicle
An air spring system for a two axle motor vehicle has a compressed air source and control valves. The control valves are assigned to the individual motor vehicle wheels and by means of which the...
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6431557 |
Driving mode ride height adjustment
Apparatus for adjusting the height of a vehicle frame on a vehicle is disclosed including a pneumatic suspension system for adjusting the elevation of the vehicle frame, and a controller for...
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6416061 |
Hydraulic suspension system
This invention relates to hydraulic suspension systems and in particular to vehicle oleopneumatic suspension systems employing sliding pillar struts. There is provided a suspension system for a...
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6412790 |
Vehicle suspension and rotary height control valve for same
A height control valve is preferably adapted to be mounted in a trailing arm suspension and fluidly interconnected to a source of pressurized air and to an air spring. The height control valve...
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6398227 |
Ride control apparatus and method
An apparatus for adjusting the ride of a load carrying vehicle is disclosed. The apparatus includes a sensor, a controller, and an adjustable accumulator assembly. The sensor measures a load on a...
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6378878 |
Self-leveling suspension system
A single air spring positioned under one side of a vehicle provides side to side leveling of the vehicle. Main springs support the vehicle above a pair of coaxial wheels or coaxial wheel sets. An...
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