Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions

BPERFORMING OPERATIONS TRANSPORTING B60Vehicles B60GVEHICLE SUSPENSION ARRANGEMENTS

B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions

B60G17/002by temperature regulation of the suspension unit B60G17/005Suspension locking arrangements B60G17/015the regulating means comprising electric or electronic elements B60G17/0152characterised by the action on a particular type of suspension unit B60G17/0155pneumatic unit B60G17/0157non-fluid unit B60G17/016characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input B60G17/0161mainly during straight-line motion B60G17/0162mainly during a motion involving steering operation B60G17/0163the control involving steering geometry B60G17/0164mainly during accelerating or braking B60G17/0165NPC8 to an external condition B60G17/017characterised by their use when the vehicle is stationary B60G17/018characterised by the use of a specific signal treatment or control method B60G17/0182involving parameter estimation B60G17/0185for failure detection B60G17/019characterised by the type of sensor or the arrangement thereof B60G17/01908Acceleration or inclination sensors B60G17/01916Mercury-switch type devices B60G17/01925Pendulum-type devices B60G17/01933Velocity B60G17/01941characterised by the use of piezo-electric elements B60G17/0195characterised by the regulation being combined with other vehicle control systems B60G17/02Spring characteristics B60G17/021the mechanical spring being a coil spring B60G17/023the mechanical spring being a leaf spring B60G17/025the mechanical spring being a torsion spring B60G17/027Mechanical springs regulated by fluid means B60G17/0272the mechanical spring being a coil spring B60G17/0275the mechanical spring being a leaf spring B60G17/0277the mechanical spring being a torsion spring B60G17/033characterised by regulating means acting on more than one spring B60G17/04fluid spring characteristics B60G17/0408details B60G17/0416regulated by varying the resiliency of hydropneumatic suspensions B60G17/0424by varying the air pressure of the accumulator B60G17/0432by varying the number of accumulators connected to the hydraulic cylinder B60G17/044Self-pumping fluid springs B60G17/048with the regulating means inside the fluid springs B60G17/0485the springs being pneumatic springs with a flexible wall B60G17/052Pneumatic spring characteristics B60G17/0521the spring having a flexible wall B60G17/0523Regulating distributors or valves for pneumatic springs B60G17/0525Height adjusting or levelling valves B60G17/0526Distributor units B60G17/0528Pressure regulating or air filling valves B60G17/056Regulating distributors or valves for hydropneumatic systems B60G17/0565Height adjusting valves B60G17/06Characteristics of dampers B60G17/08Characteristics of fluid dampers