Abstract: A power supply connector has a first part and a second part that are connected to each other such that they can turn relative each other within a predefined and/or restricted turning angle. The first part includes a first set of plurality of conductors and the second part includes a corresponding second set of plurality of conductors, wherein the pairs of conductors are electrically connected by electrical connections including a connection tip on one of the first and the second part and a contact surface on the other one, wherein the electrical connections are provided in at least one circular shape around a turn axis of the power supply connector The turning angle between the first part and the second part is limited to the shortest angular extension of the contact surfaces and the contact surfaces are distributed such that the pair of conductors are permanently electrically connected.

Abstract: A hydraulic system for a working machine includes a first electric machine connected to a first hydraulic machine; a second electric machine connected to a second hydraulic machine, an output side of the second hydraulic machine being connected to an input side of the first hydraulic machine; at least one hydraulic consumer hydraulically coupled to an output side of the first hydraulic machine via a supply line and configured to be powered by the first hydraulic machine; and a valve arrangement arranged between the hydraulic consumer and the first and second hydraulic machines, wherein the valve arrangement is configured to control a return flow of hydraulic fluid from the hydraulic consumer to either the input side of the first hydraulic machine or an input side of the second hydraulic machine based on a requested output pressure from the first hydraulic machine.

Abstract: When a first control valve and a second control valve are in non-neutral positions, respectively, a fifth fluid passage and a second fluid passage are closed, thereby generating a first pressure within a fifth portion of the fifth fluid passage and a second pressure within a second portion of the second fluid passage, so that the first pressure is applied to a first valve through a fourth fluid passage to move the first valve to close the third fluid passage and a second pressure is applied to the confluence valve through a first fluid passage to move the confluence valve to a confluence position. When the confluence valve is in the confluence position, the confluence valve directs working fluid from a first working fluid supply to the second control valve.

Abstract: A hydraulic machine. A boom actuator includes a large chamber and a small chamber. A recovery unit receives fluid discharged from the large chamber and then recovers energy. A recovery line connects the large chamber and the recovery unit. An accumulator is connected to a first point on the recovery line. A discharge valve is disposed on the recovery line between the first point and the recovery unit. A first sensor measures a pressure in the accumulator. A controller controls opening and closing of the discharge valve. The controller performs anti-bouncing control of: determining a target pressure in the accumulator corresponding to a load pressure applied to fluid in the large chamber by a load according to a predetermined correspondence; and controlling the opening and closing of the discharge valve such that the pressure in the accumulator measured by the first sensor reaches the target pressure.

Abstract: A quick coupler circuit includes a cylinder to attach and/or detach an attachment to and/or from a construction machine by expansion and/or contraction, a flow pump to supply fluid to the cylinder, a valve through which fluid for operating the cylinder passes, a spool valve which includes a spool, to move along an axial direction, and to form a pressure at a node of the flow pump according to movement of the spool, an electronic proportional pressure reducing valve to control the spool valve, a switch to perform an ON/OFF operation, and a controller to output a control current to the electronic proportional pressure reducing valve in response to the operation of the switch. The controller is maintains control current which it outputs during the switch's ON operation for a predetermined period of time after the switch's OFF operation.

Abstract: An articulated working machine vehicle, such as an articulated hauler, including a front section and a rear section pivotally connected via a connection arrangement configured to control a pivot angle between the front and rear sections for steering of the vehicle, the connection arrangement further being configured to allow the front and rear sections to rotate in relation to each other about a longitudinal axis of the vehicle. The connection arrangement comprises a rotation damper device arranged to transfer dampened relative rotation between the front section and the rear section of the vehicle.

Abstract: A dynamic vibration absorber for reducing steering wheel vibration. The vibration absorber includes a resilient member that includes a resilient member inner surface that defines a center cavity that is configured to receive a steering column of a vehicle that generates vibration that is transferred to a steering wheel via the steering column, the center cavity being substantially coaxial with the steering column when attached thereto. The resilient member includes at least one resilient member outer surface that defines a resilient member outer diameter. The vibration absorber includes a rigid body that engages and is supported by the resilient member and that includes six degrees of freedom of movement relative to the steering column, the rigid body including a rigid body inner surface that defines a rigid body center cavity.

Abstract: A load carrying vehicle including: a chassis; a load carrying container connected to the chassis; a plurality of wheels; a suspension arrangement coupling the wheels to the chassis; wherein the suspension arrangement is configured to controllably lower the container such that the container makes contact with at least two wheels.

Abstract: An asphalt density estimation system includes a measurement device configured to output a measurement signal; a time synchronization unit configured to sample the measurement signal to obtain a sampled measurement signal and identify periodic sampling points of the sampled measurement signal across a plurality of periods. The system also includes a time synchronous averaging unit configured to construct a modified measurement signal in the time domain by: for at least one sampling point within the period, averaging a plurality of the periodic sampling points across periods to obtain an average periodic data point for the at least one sampling point, and constructing the modified measurement signal using the average periodic data point for the at least one sampling point. The system further includes a density calculation unit configured to determine asphalt density values based on the modified measurement signal; and a display unit configured to display the determined asphalt density values.

Abstract: An electrically powered hydraulic system for a working machine includes: an electric motor to power a working hydraulic pump. A flow of hydraulic fluid generated by the hydraulic pump is controlled by the operation rotational speed of the electric motor. An electronic control unit is configured to: when an operator input device is in a first operating range, maintain the electric motor at a constant rotational speed, and control a variation in flow of hydraulic fluid to the hydraulic function with an electronically controlled control valve, and when the operator input device is in a second operating range, control a variation in flow of hydraulic fluid by varying the electric motor rotational speed and by controlling the control valve, according to displacement of the operator input device.

Abstract: A transmission arrangement comprises a first planetary gear set, a second planetary gear set, a third planetary gear set, an input shaft connectable to a prime mover, the input shaft being operatively connected to a sun gear of the second planetary gear set and to a sun gear of the third planetary gear set, an output shaft operatively connected to a ring gear of the first planetary gear set and to a planet carrier of the second planetary gear set. The transmission arrangement further includes a gear selection arrangement including a first locking mechanism connected to a planet carrier of the first planetary gear set, a second locking mechanism connected to a sun gear of the first planetary gear set, a ring gear of the second planetary gear set and to a planet carrier of the third planetary gear set, and a third locking mechanism.

Abstract: A wheel hub drive system includes a drive motor with a drive shaft, an input planetary gear set (PGS), an output PGS and an intermediate PGS. Each PGS includes a sun gear, a planet carrier and planet gears provided upon the planet carrier. The drive shaft is rotationally fixed with the sun gear of the input PGS. The planet carrier of the input PGS is rotationally fixed with the sun gear of the intermediate PGS, and the planet carrier of the intermediate PGS is rotationally fixed with the sun gear of the output PGS. The planet carrier of the output PGS is adapted to be rotationally fixed with a rim of a wheel. The output PGS is provided axially in-between the input PGS and the intermediate PGS.

Abstract: An apparatus for retaining an upper pivoting body of a construction machine having a lower traveling body includes a protrusion on a lower surface of the upper pivoting body, a socket portion on an upper side of the lower traveling body that couples with the protrusion, an elastic member on a lower side of the socket portion that elastically supports the socket portion, a first tapered member on a lower side of the elastic member to support the elastic member, a lower surface of the first tapered member having a sloping surface, and a second tapered member on a lower side of the first tapered member. The upper surface of the second tapered member has a sloping surface that makes sliding contact with the first tapered member. The second tapered member lifts the socket portion, through a horizontal movement, to be coupled with the protrusion or lowers the socket portion to be separated from the protrusion.

Abstract: A hydraulic machine is provided. A boom actuator includes a large chamber and a small chamber. A recovery unit receives fluid discharged from the large chamber and then recovers energy. A recovery line connects the large chamber and the recovery unit. An accumulator is connected to the recovery line. A jack-up assist line connects the accumulator and the small chamber. A jack-up assist valve is disposed on the jack-up assist line to block flow of fluid from the accumulator to the small chamber in a first position and allow the flow of fluid from the accumulator to the small chamber in a second position. A controller controls movement of the jack-up assist valve. The controller may determine whether or not the hydraulic machine is in a jack-up condition, and when the hydraulic machine is determined to be in the jack-up condition, moves the jack-up assist valve to the second position.

Abstract: A working machine includes a first section with a first frame and at least one oscillation axle holding a first pair of ground engaging members; a second section with a second frame and a second pair of ground engaging members; a joint arrangement pivotly connecting the first frame to the second frame; a motor configured for driving one ground engaging member of the first pair of ground engaging members in order to create propulsion forces; a propulsion force transfer arrangement adapted to transfer propulsion forces from the ground engaging member of the first pair of ground engaging members to the second pair of ground engaging members, via the joint arrangement. The propulsion force transfer arrangement includes a connecting element extending centrally in a longitudinal direction of the working machine.

Abstract: A hydraulic system includes a first electric machine connected to a first hydraulic machine and a second electric machine connected to a second hydraulic machine. An output side of the second hydraulic machine is connected to an input side of the first hydraulic machine. A hydraulic consumer is hydraulically coupled to an output side of the first hydraulic machine via a supply line and is powered by the first hydraulic machine. A return line hydraulically couples the hydraulic consumer to an input side of the first hydraulic machine. The second hydraulic machine provides a flow of hydraulic fluid to the input side of the first hydraulic machine if a requested flow from the first hydraulic machine exceeds a flow of the return line and recuperates energy if the requested flow from the first hydraulic machine is lower than the flow of the return line.

Abstract: The invention relates to a method that consists to give a second life to used electric vehicle battery packs by reusing them as a power source for an autonomous battery charger, preferably for a mobile battery charger. The method includes successive steps consisting in: a) selecting, among battery packs that have been removed from electric vehicles, at least two battery packs; b) balancing the voltage between the selected battery packs, in order that the selected battery packs have the same State Of Charge (SOC); and c) integrating the selected battery packs (11, 12) into the battery charger.

Abstract: The invention relates to a paver (1), comprising a conveyor unit (200) having a first edge (202), a hopper unit (100) having a front end (102) and a rear end (104) with respect to the paving direction (P) and an inward paving material storage (106), the hopper unit (100) being movable between a lowered position and a raised position for directing paving material towards the conveyor unit (200), and wherein the hopper unit (100) includes a first hopper (120) with a first base portion (122) and a first wall (124), the first in hopper (120) having a first hopper pivot axis (126) being adjacent to the first edge (202) of the conveyor unit (200) and the first base portion (122) being pivotally arranged in respect to the first hopper pivot axis (126), and a front part (110) which is arranged inwardly adjacent to the first hopper (120) between the front end (102) and the conveyor unit (200).

Abstract: A road building machine for laying asphalt with a control switch (40) which is interconnected in an emergency stop circuitry (100), wherein said control switch is arranged at the paver outside from a detachable second control panel (120), wherein said control switch (40) is connected in a functional parallel electrical arrangement with a second electric emergency stop switch (20) if the detachable second control panel (120) is electrically connected to an electronic control circuit, wherein said control switch (40) is actuated by a switch function activated by said electrical coupling of said detachable second control panel (120) to said electronic control circuit such that if said detachable second control panel (120) is electrically connected to said electronic control circuit, said control switch (40) is actuated to be open, such that the emergency stop circuitry (100) is closed or open via said first or said second electric emergency stop switch (10, 20).

Abstract: A method for determining object position information indicative of the position includes at least the horizontal position of an object that is intended to be removed using an object removal machine. The method uses a working machine that includes an implement, and that is different from the object removal machine. The method includes arranging the implement such that at a position of at least a portion thereof has a determinable relation to the position of the object; determining the position of the implement, and determining the object position information using the position of the implement.