The invention relates to a construction machine, road milling machine, stabiliser, recycler, surface miner, and a to method for controlling a construction machine. The construction machine has a machine frame 2 supported by a chassis 1 and a plurality of hydraulic systems 15, 16, each of which has at least one hydraulic component 18, 22, at least one hydraulic pump 17, 21 for conveying hydraulic fluid for the at least one hydraulic component and at least one hydraulic line 28, 31 for transporting the hydraulic fluid from the at least one hydraulic pump to the at least one hydraulic component. The drive device of the construction machine comprises at least one internal combustion engine 24. A power transmission device 44 is provided for transmitting at least part of the drive power from the internal combustion engine 24 to the hydraulic pumps 17, 21. The construction machine according to the invention is characterised by a hydraulic control device 26, which is assigned to two hydraulic systems 15, 16 of the plurality of hydraulic systems. The hydraulic control device 16 is designed such that, in a special operating mode, at least part of the hydraulic fluid delivered by the hydraulic pump 17 of the one hydraulic system 15 is supplied to the other hydraulic system 16.

An adjustable vibration damper includes at least one adjustable damping valve, with a piston at a piston rod that divides a cylinder into a work chamber on the piston rod side and a work chamber on the side remote of the piston rod. The cylinder is at least partially enclosed by an intermediate tube that forms a fluid connection between one of the work chambers and the adjustable damping valve. A hydraulic apparatus is connected to the fluid connection of the one work chamber via a first line and to the other work chamber via a second line.

The present invention concerns an axle unit comprising a stub axle and an axle tube, wherein the stub axle has a longitudinal channel which extends inside the stub axle substantially along a stub axis, wherein the stub axle has a transverse channel which extends inside the stub axle substantially transversely to the stub axis and opens to the environment at the outer face of the stub axle, wherein the longitudinal channel and the transverse channel are connected together, wherein the stub axle has a stub joining region to which the hollow-bodied axle tube can be secured.

A double wishbone suspension system for an in-wheel electric motor comprises an upper arm having a first end pivotally coupled to an upper portion of a motor mounting plate and two spaced apart second ends, the upper arm second ends are respectively coupled to first and second suspension mounting points; a lower arm having a first end pivotally coupled to a lower portion of the mounting plate and two spaced apart second ends, the lower arm second ends are respectively coupled to third and fourth suspension mounting points; a first coupling member having a first end pivotally coupled between the lower arm first second ends and a first coupling member second end is pivotally coupled to a second coupling element first end, wherein a second coupling member second end is pivotally coupled to the mounting plate between the first ends of the upper and lower arms.

A compressed air supply device for an air suspension system of a motor vehicle comprising a motor-driven compressor, a dryer, a discharge path from the dryer to the outside, and an adjustment device for changing a flow cross section of the discharge path is provided in the discharge path.

Aspects of the present invention relate to a system for a vehicle comprising: a hydraulic suspension actuator comprising a piston, a first upper fluidic chamber and a second lower fluidic chamber, the first and second fluidic chambers separated by the piston; at least one actuator system module mounted to a subframe and laterally separated from the hydraulic suspension actuator, the at least one actuator system module comprising one or more actuator system components; a longitudinal beam located laterally between the hydraulic suspension actuator and the at least one actuator system module; and at least one conduit fluidly connecting the hydraulic suspension actuator and the at least one actuator system module, wherein the at least one conduit passes over the longitudinal beam.

Aspects of the present invention relate to an actuator system for a vehicle suspension system comprising: a first actuator comprising a piston, a first upper fluidic chamber and a second lower fluidic chamber, the first and second fluidic chambers separated by the piston; a second actuator comprising a piston, a first upper fluidic chamber and a second lower fluidic chamber, the first and second fluidic chambers separated by the piston; a first hydraulic gallery fluidly connecting the first upper fluidic chamber of the first actuator and one of the first and second fluidic chambers of the second actuator; a second hydraulic gallery fluidly connecting the second lower fluidic chamber of the first actuator and the other of the first and second fluidic chambers of the second actuator; and at least one pump configured to pump fluid between the first and second hydraulic galleries.

A hydraulic ride height actuator system for providing variation of a ride height at a front end of a vehicle is provided includes a strut and an actuator including a piston and a housing axially movable with respect to the piston. The housing is fastened to an upper end of the strut. The piston and the housing define a hydraulic chamber. An increase in a volume of the hydraulic chamber forces the housing upward to vary the ride height.

A hydraulic ride height actuator system for providing variation of a ride height at a front end of a vehicle is provided includes a strut and an actuator including a piston and a housing axially movable with respect to the piston. The housing is fastened to an upper end of the strut. The piston and the housing define a hydraulic chamber. An increase in a volume of the hydraulic chamber forces the housing upward to vary the ride height.

An electric vehicle includes a chassis, a rigid axle housing, and a suspension system control arm coupling the rigid axle housing to the chassis. The electric vehicle also includes first and second electric motors, each having a rotator and a stator. The stator of the first and second electric motors are rigidly fixed to the rigid axle housing. The electric vehicle also includes a coolant supply system coupled to a radiator and the rigid axle housing to supply coolant from the radiator to a coolant inlet of the rigid axle housing and to supply used coolant from a coolant outlet of the rigid axle housing to the radiator. A first mounting bracket is fixed to the chassis and the coolant supply system. A second mounting bracket is fixed to the rigid axle housing and the coolant supply system, and a third mounting bracket is fixed to the control arm and the coolant supply system.