A system for filling a tank of a suspension system with hydraulic fluid includes: a module configured to turn on an external pump and pump hydraulic fluid into the suspension system, where the external pump is separate from the suspension system and is configured to pump hydraulic fluid into the suspension system via a port fluidly connected to a hydraulic line of the suspension system; and a fill module configured to, after operating the external pump, operate a pump of the suspension system and pump hydraulic fluid from the hydraulic line into the tank of the suspension system thereby filling the tank.

The invention relates to a method for monitoring a state of wear of a damping device within a system. The system includes a vehicle seat having a first portion which is movably mounted in at least one direction with respect to a second portion, a damping device for damping oscillations is arranged between the first portion and the second portion, and a first sensor that determines an instantaneous relative position of the first portion with respect to the second portion. A displacement function in relation to the relative position of the first portion with respect to the second portion is defined as a function of time, and a current value of the displacement function is determined at selected intervals and summed. The sum is compared with a predetermined first limit.

A system for filling a tank of a suspension system with hydraulic fluid includes: a module configured to turn on an external pump and pump hydraulic fluid into the suspension system, where the external pump is separate from the suspension system and is configured to pump hydraulic fluid into the suspension system via a port fluidly connected to a hydraulic line of the suspension system; and a fill module configured to, after operating the external pump, operate a pump of the suspension system and pump hydraulic fluid from the hydraulic line into the tank of the suspension system thereby filling the tank.

A ground movement system for a land transport vehicle (2) capable of levitating, the vehicle having a plurality of wheels including at least one actuated wheel (3), a drive device (6) for driving the actuated wheel and/or a brake (8) for braking the actuated wheel (3), a vertical positioning actuator (9) arranged to move the actuated wheel (3) vertically relative to a fuselage of the vehicle (2), and control means arranged to act, during an acceleration stage and/or during a braking stage of the vehicle, to control the vertical positioning actuator (9) as to adjust the vertical position of the actuated wheel in order to increase the load carried by the actuated wheel and thus increase the maximum force that can be transmitted to the ground by the actuated wheel so as to increase the maximum drive and/or braking torque that can be produced by the drive device (6) and/or by the brake (8) without the actuated wheel (3) skidding or slipping.

A communication and power transmission module includes a communication connection portion adapted for communicative coupling with an associated controller. A wireless power and communication portion is adapted for communicative coupling with an associated sensing device operatively associated with an associated suspension component and/or an associated wheel. The wireless power and communication portion is operable to communicate wireless data and/or signals to and/or from the associated sensing device and operable to wirelessly transmit power to the associated sensing device. Gas spring assemblies and vehicles including one or more of such communication and power transmission modules are also included.

An approach is provided for location-aware wheel camber settings. The approach involves, for example, collecting tire temperature data, wheel camber data, and location data from one or more sensors of a plurality of vehicles. The approach also involves processing the tire temperature data, wheel camber data, and location data to determine a target wheel camber for a road segment indicated by the location data. The target wheel camber is determined from one or more observed wheel cambers indicated in the wheel camber data. The target wheel camber is also associated with a target tire temperature indicated in the tire temperature data. The approach further involves storing the target wheel camber as an attribute of map data associated with the road segment.

The invention relates to a method for monitoring a state of wear of a damping device within a system. The system includes a vehicle seat having a first portion which is movably mounted in at least one direction with respect to a second portion, a damping device for damping oscillations is arranged between the first portion and the second portion, and a first sensor that determines an instantaneous relative position of the first portion with respect to the second portion. A displacement function in relation to the relative position of the first portion with respect to the second portion is defined as a function of time, and a current value of the displacement function is determined at selected intervals and summed. The sum is compared with a predetermined first limit.

Methods and systems are provided for conducting an evaporative emissions test on a fuel system in a vehicle. In one example, in response to a determination, based on the prevailing vehicle and ambient thermal conditions, that altering vehicle height may increase pressure or vacuum build during a pressure or vacuum build phase of an engine off natural vacuum test, employing the vehicle's active suspension to make said height adjustments. In this way the accuracy of engine off natural vacuum testing can be improved, and the conditions under which such testing can be efficaciously conducted increased.

An approach is provided for location-aware wheel camber settings. The approach involves, for example, collecting tire temperature data, wheel camber data, and location data from one or more sensors of a plurality of vehicles. The approach also involves processing the tire temperature data, wheel camber data, and location data to determine a target wheel camber for a road segment indicated by the location data. The target wheel camber is determined from one or more observed wheel cambers indicated in the wheel camber data. The target wheel camber is also associated with a target tire temperature indicated in the tire temperature data. The approach further involves storing the target wheel camber as an attribute of map data associated with the road segment.

Methods and systems are provided for conducting an evaporative emissions test on a fuel system in a vehicle. In one example, in response to a determination, based on the prevailing vehicle and ambient thermal conditions, that altering vehicle height may increase pressure or vacuum build during a pressure or vacuum build phase of an engine off natural vacuum test, employing the vehicle's active suspension to make said height adjustments. In this way the accuracy of engine off natural vacuum testing can be improved, and the conditions under which such testing can be efficaciously conducted increased.