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Class 280/5.519 - Plural distinct modes (i.e., HARD-SOFT)


Subclass of Class 280 - Land vehicles
Definition: Subject matter comprising selection of an elasticity or
No. of patents: 102
Last issue date: 08/16/2011


1      
NumberTitleIssue Date
7997588Cylinder apparatus and stabilizer apparatus using the same
There is provided with a cylinder apparatus comprising: a cylinder; a piston; a piston rod, one end of which is connected to the piston and the other end of which is extended outside; an external cylinder provided at an outer periphery of the cylinder so as to form ...
08/16/2011
7549649Vehicle with a vehicle dynamic performance selection switch on the steering wheel
A vehicle (1) having a central control unit (13) which supervises operation of active components of the vehicle (1), and modifies the operating parameters of the active components to modify the dynamic performance of the vehicle (1); and ...
06/23/2009
7472914Suspension system
A vehicle suspension system for use with a vehicle includes a first hydraulic cylinder, a second hydraulic cylinder, and a fluid circuit. The first hydraulic cylinder and the second hydraulic cylinder each include an upper chamber and a lower chamber. The fluid circ...
01/06/2009
7380800Method and system for controlling a dual mode vehicle suspension system
A method and system for controlling a vehicle suspension system switchable between two modes of operation, including a first mode for when the vehicle is experiencing an on-road driving condition and a second mode for when the vehicle is experiencing an off-road dri...
06/03/2008
7380799Adjustable vehicle suspension system with adjustable-rate air spring
An adjustable vehicle suspension system includes a plurality of damping members and an air spring operatively associated with each of the damping members. The suspension system also includes a compressed air source, a valve assembly, and a controller. The compressed...
06/03/2008
7364003Systems and methods for the mitigation of hop
A system for mitigating hop in a propelled machine is provided. A controller is operable to receive an aggressiveness command based on an operator input. A sensor is operable to measure a parameter indicative of hop and output a hop signal indicative of a magnitude ...
04/29/2008
7357395Device 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. The device includes at least one double-acting hydraulic cylinder hav...
04/15/2008
7350793Vehicle suspension roll control system
A roll control system for a vehicle including: two double-acting rams (1, 2) at the first end of the vehicle and two single acting rams (3, 4) at the second of the vehicle; each double-acting ram (1, 2) including a first and a second fluid chamb...
04/01/2008
7318595Variable ride control
A skid steer vehicle has a chassis with four drive wheels suspended from the chassis that are damped by four damping cylinders. An electronic controller varies the damping of the cylinders in an automatic mode, based on certain operational parameters of the vehicle,...
01/15/2008
7318594Active roll stabilization system
An active roll stabilization system of a vehicle having an axle with at least two wheels, wherein the axle is provided with a roll stabilizer that is actuated by means of a hydraulic device. The hydraulic device is actuated and controlled by at least one pressure co...
01/15/2008
7314221Driver controlled wedge and track bar adjustors
A driver controlled wedge and track bar adjustor for a race car. A controller located inside the driver's compartment of the race car is coupled to a drive which is operatively coupled to adjusting rods. The controller may be configured to initiate a predetermined a...
01/01/2008
7311315Apparatus for controlling stiffness of anti-roll bar for vehicle
An apparatus for controlling stiffness of an anti-roll bar for a vehicle includes an anti-roll bar provided with piezoelectric ceramics, the anti-roll bar interconnecting both lower arms of a vehicle suspension system, a power converter connected to a power supply t...
12/25/2007
7248956Adaptation of a vehicle stabilizing system to the surface
A vehicle stabilizing system, for motor vehicles in particular, includes a control unit in which a stabilization control algorithm is stored, a sensor system for detecting present actual values of vehicle state variables, and at least one actuator for implementing a...
07/24/2007
7229079Center seeking suspension system
A suspension system includes a fluid strut, an accumulator and a reservoir. The accumulator and reservoir are in fluid communication with the fluid strut through an accumulator valve and a reservoir valve respectively. A fluid pump pressurizes the accumulator with a...
06/12/2007
7226064Locking 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 springing. A hydraulic circuit coupled to the cylinder and accumulator permit ...
06/05/2007
7219779Hydro-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 of which are connected to an accumulator and which can be connected t...
05/22/2007
7210544Control of a transporter based on attitude
A transporter for transporting a load over a surface. The transporter includes a support platform for supporting the load. The support platform is characterized by a fore-aft axis, a lateral axis, and an orientation with respect to the surface, the orientation refer...
05/01/2007
7163208Hydropneumatic 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 communicating with the pressurized oil pump and a second 2/2 directio...
01/16/2007
7083172Method for controlling anti-roll/anti-yaw of vehicles
A method for controlling roll/yaw motions of a vehicle includes the steps of deciding whether an anti-roll control is required or not by comparing a roll rate of the vehicle with a predetermined threshold roll rate, executing the anti-roll control if the roll rate i...
08/01/2006
7079928System and method for determining a wheel departure angle for a rollover control system with respect to road roll rate and loading misalignment
A control system (18) and method for an automotive vehicle includes a roll rate sensor (34) generating a roll rate signal, a lateral acceleration sensor (32) generating a lateral acceleration signal, a pitch rate sensor (37) generating a ...
07/18/2006
7070029Monotube piston valving system with selective bleed
A shock absorber piston assembly includes a piston having a first face, a second face and a plurality of fluid passages. Preloaded flow control devices each seal at least one of the fluid passages, including: a first bleed plate contacting the first face and a secon...
07/04/2006
7051851Locking suspension system
A method and apparatus for controlling frame rise on a heavy duty truck having a frame, a drive axle connected to the frame, and a selectively lockable suspension component disposed therebetween for maintaining the relative position therebetween. Signals indicative ...
05/30/2006
7048280Hydropneumatic 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 hydropneumatic accumulators having a suspension circuit Z of the cylinder chamber...
05/23/2006
7044482Locking 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 springing. A hydraulic circuit coupled to the cylinder and accumulator permit ...
05/16/2006
7040632Vehicle suspensions
A vehicle air suspension system includes a control unit 32 which is arranged to produce a running measure of the level of cross articulation of the two axles 18, 20 and, if it exceeds a certain level indicating that the vehicle is on rough terrain, to ...
05/09/2006
7036805Pneumatic front suspension assembly for industrial vehicle
A pneumatic front suspension assembly for an industrial vehicle comprises: a front axle linked to a pair of side-members, and a pair of airbags for adjusting the height of the axle relative to the side-members. On each side, there is provided a rigid arm whereof one...
05/02/2006
6923453Suspension leveling system
In the operation of work machines of the type required to carry heavy loads over uneven ground conditions, it is oftentimes desirable to provide the work machine with a way to automatically maintain the chassis in a substantially horizontal condition. The present in...
08/02/2005
6886837Hydraulic suspension strut for an amphibious vehicle
A hydraulic suspension strut (30) has a first on-off valve (58) connecting the first and second chambers (42 and 44), and a second on-off valve (62) connected to chamber (42) only. Suspension arm (3) of wheel (1
05/03/2005
6883810Air spring stiffness controller
A method and apparatus for adaptively damping relative motion between the wheels and the frame of a heavy duty truck having a frame suspended on wheels by a suspension system. An air spring is disposed between the frame and at least one of the wheels having a primar...
04/26/2005
6786492Method 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 particular on vehicles in which the front axle is subjected to a low, medi...
09/07/2004
6679504Seamless control of spring stiffness in a liquid spring system
A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first structural member and the second structural member. The l...
01/20/2004
6412788Suspension control system
A suspension control system includes a shock absorber adapted to be mounted between a vehicle body and a wheel axle and having a variable damping force, an actuator operatively connected to the shock absorber and adapted to adjust the damping force develo...
07/02/2002
6202011Electronic controlled suspension system using wheel speed
The present invention relates to an electronic suspension control system (ECS) not using a G sensor and a steering angle sensor but using an ECS control algorithm and an ABS wheel speed sensor in order to perform rough road detecting and roll controlling....
03/13/2001
6053291Damper of a type with a variable damping force
A small-sized damper is provided which enables to effectively vary the damping force of a damper even in a region in which the moving speed of a rod is small. On one of a damper main body and a rod which is inserted into the damper main body, there are mo...
04/25/2000
5979885Damping coefficient control apparatus for damping mechanism in vehicle suspension system
A damping coefficient control apparatus for a damper device in a suspension mechanism disposed between a sprung mass and an unsprung mass of a wheeled vehicle, wherein an absolute vertical movement velocity of the sprung mass is detected in an absolute sp...
11/09/1999
5765115Pneumatic tilt stabilization suspension system
A controllable suspension system includes air springs and variable damping shock absorbers (108) switchable between first and second effective spring rates and soft and firm damping rates. At speeds above a given speed, lateral accelerations exceeding pre...
06/09/1998
5725239Adaptive load dependent suspension system
A suspension system for use in a motor vehicle that is self-adjusting in response to vehicle load and roadway conditions. The system incorporates a pneumatic arrangement for such an adaptive load dependent system which connects air springs with fluid-cush...
03/10/1998
5632503Method for allowing enhanced driver selection of suspension damping and steering efforts
A method for allowing enhanced driver selection of suspension damping and steering efforts for a motor vehicle includes the steps of presenting to a driver of the motor vehicle a plurality of suspension damping modes and steering efforts modes for the mot...
05/27/1997
5586032System for controlling a vehicle undercarriage based on road safety, travel comfort and standard modes of operation
A system for the generation of signals for control or regulation of a passenger car and/or truck undercarriage controllable or regulable in its sequences of movement, where a three-step operation is provided. In a safety mode, particular allowance is made...
12/17/1996
5555173Damping factor switching in vehicle shock absorbers
One or more vehicle suspension signals, preferably already generated within a controllable suspension system, is utilized to perform switches of the damping state of variable damping shock absorbers in the suspension system while the velocity of the shock...
09/10/1996
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