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US 4,700,972 AGranted
Computerized, central hydraulic, electronic variable suspension
OwnerColin G. Younginventor
Life of this patent
Estimating the term…
Abstract
A vehicle suspension system using sensors and a computing means to vary suspension and road-handling parameters such as wheel camber, suspension spring rates, suspension damping coefficients, vehicle leveling and clearance to provide a vehicle with optimum suspension characteristics. This system is useful particularly, but not necessarily, for racing vehicles.
Claims5
For use in a vehicle having a plurality of wheels, wherein each wheel has a variable camber, a suspension system comprising;
- a lateral-acceleration-sensing means determining and providing lateral-acceleration input relating to lateral-acceleration of the vehicle;
- a plurality of camber-sensing means, each corresponding to a particular wheel and determining and providing camber input relating to the camber of the particular wheel;
- a plurality of camber-control means, each corresponding to a particular wheel and controlling the camber of the particular wheel;
- a computing means which receives the input from the lateral-acceleration-sensing means from each of the camber-sensing means, processes the inputs corresponding to at least one selected wheel, and provides a camber output to the camber-control means for controlling the camber of the at least one selected wheel;
- a plurality of body-roll-sensing means, each corresponding to a particular wheel and determining and providing body-roll input relating to lateral body-roll of the vehicle in a region proximate the particular wheel;
- a plurality of vertical-control means, each corresponding to a particular wheel and controlling a vertical distance between the particular wheel and a chassis;
- wherein the computing means receives the input from each of the body-roll-sensing means, processes the inputs corresponding to at least one selected wheel, and provides a vertical-output to the vertical-control means for controlling the vertical position of the at least one selected wheel;
- a plurality of vertical-acceleration-sensing means, each corresponding to a particular wheel and determining and providing vertical-acceleration input relating to vertical-acceleration of the vehicle in the region proximate the particular wheel;
- a plurality of variable positioned fulcrums, each coresponding to a particular wheel and connected to the chassis by a piston and cylinder, and wherein varying a position of the variable-positioned fulcrum varies an effective spring rate constant of the vehicle corresponding to the particular wheel;
- a plurality of positioning means, each corresponding to a particular wheel and for varying the position of the variable-positioned fulcrum;
- the computing means receiving and processing the vertical-acceleration inputs, and computing a forced vibrational input over time for at least one selected wheel;
- and
- the computer means providing a fulcrum-output to the positioning means corresponding to the selected wheel to vary the position of the variable-positioned fulcrum.
10 more elements
For use in a vehicle having a plurality of wheels, a suspension system comprising:
- a plurality of body-roll-sensing means, each corresponding to a particular wheel and determining and providing body-roll input relating to lateral body-roll of the vehicle in a region proximate the particular wheel;
- a plurality of vertical-control means, each corresponding to a particular wheel and controlling a vertical distance between the particular wheel and a chassis;
- a computing means which receives the input from each of the body-roll-sensing means, processes the inputs corresponding to at least one selected wheel, and provides a vertical-output to the vertical-control means for controlling the vertical position of the at least one selected wheel;
- a plurality of vertical-acceleration-sensing means, each corresponding to a particular wheel and determining and providing vertical-acceleration input relating to vertical-acceleration of the vehicle in the region proximate the particular wheel;
- a plurality of variable positioned fulcrums, each corresponding to a particular wheel and connected to the chassis by a piston and cylinder, and wherein varying a position of the variable-positioned fulcrum varies an effective spring rate constant of the vehicle corresponding to the particular wheel;
- a plurality of positioning means, each corresponding to a particular wheel and for varying the position of the variable-positioned fulcrum;
- the computing means receiving and processing the vertical-acceleration inputs, and computing a forced vibrational input over time for at least one selected wheel;
- and
- the computer means providing a fulcrum-output to the positioning means corresponding to the selected wheel to vary the position of the variable-positioned fulcrum.
6 more elements
Dependencies are inferred from the claim text.