A suspension control system includes: a first electric current setting unit configured to set a first electric current based on an actual damping speed; a second electric current setting unit configured to set a second electric current based on a model damping speed; a weight coefficient setting unit configured to set a weight coefficient based on the actual damping speed; and a target electric current setting unit configured to set a sum of a first value and a second value as a target electric current of the damper, the first value being obtained by multiplying the second electric current by the weight coefficient, the second value being obtained by multiplying the first electric current by a value obtained by subtracting the weight coefficient from one. The first electric current setting unit is configured to make the first electric current smaller than the second electric current in a prescribed case.

A suspension control system includes: a first electric current setting unit configured to set a first electric current based on an actual damping speed; a second electric current setting unit configured to set a second electric current based on a model damping speed; a weight coefficient setting unit configured to set a weight coefficient based on the actual damping speed; and a target electric current setting unit configured to set a sum of a first value and a second value as a target electric current of the damper, the first value being obtained by multiplying the second electric current by the weight coefficient, the second value being obtained by multiplying the first electric current by a value obtained by subtracting the weight coefficient from one. The first electric current setting unit is configured to make the first electric current smaller than the second electric current in a prescribed case.

An air suspension system is provided with air spring devices, a pressure accumulation tank, a compressor device that supplies compressed air at least to the pressure accumulation tank, and that includes an electric motor, a pump device, and a dryer, and a control device that performs a vehicle height increase control, a vehicle height decrease control, an air suction control, and a regeneration air discharge control. The control device performs a heat accumulation control, by actuating the pump device with the communication between the compressor device and the air spring devices being blocked, supplying the compressed air discharged through the dryer to the pump device to be circulated, and accumulating heat of compression of the compressed air in the dryer, to regenerate the dryer.

An air suspension system is provided with air spring devices, a pressure accumulation tank, a compressor device that supplies compressed air at least to the pressure accumulation tank, and that includes an electric motor, a pump device, and a dryer, and a control device that performs a vehicle height increase control, a vehicle height decrease control, an air suction control, and a regeneration air discharge control. The control device performs a heat accumulation control, by actuating the pump device with the communication between the compressor device and the air spring devices being blocked, supplying the compressed air discharged through the dryer to the pump device to be circulated, and accumulating heat of compression of the compressed air in the dryer, to regenerate the dryer.

A connection arrangement is for an electrical connection from an interior room of a sealed housing to an outside of the sealed housing. The connection arrangement includes a first connection line, a second connection line, and an interconnecting element. The first connection line is adapted to be electrically coupled to an electric source arranged outside the housing. The second connection line is adapted to be electrically coupled to an electric element arranged in the interior room. The first connection line is configured for being guided through an opening in a wall of the housing into the interior room. An end section of the first connection line and an end section of the second connection line are both electrically and/or mechanically connected to the interconnecting element to establish an electrical connection from the interior room to the outside of the sealed housing. The end section of the first connection line and the interconnecting element are both sealed using a sealing material with respect to the opening in the wall such that the interior room of the housing is sealed with respect to the surroundings of the housing.

Road vehicle suspension member for converting vibrations and/or mechanical stresses into electricity and a method for producing such a suspension member, the suspension member comprising at least one suspension element or at least one interface element, configured to participate in the fixing of at least one suspension element of the vehicle, and at least one continuous two-dimensional sheet, incorporated in or covering a surface of the suspension element or of the interface element, wherein the at least one two-dimensional sheet comprises at least one piezoelectric layer, comprising piezoelectric fibres collectively orientated in a common direction in such a way as to convert at least some of the vibrations and/or mechanical stresses undergone by the suspension element during operation of the vehicle into electricity, and an electrically conductive collector layer, covering the piezoelectric layer in such a way as to collect the electricity produced by the piezoelectric fibres.