Abstract: The invention concerns rotary control device for remote control of a moving vehicle, particularly a civil engineering works vehicle, an agricultural implement or a goods handling vehicle comprising two parts rotatably mobile relative to one another about an axis (A) and formed of a body (2) intended to be fixed to the handle of the remote control and an actuating part (6), the device also comprising first elastic means (13) including a winding (14) and two mobile branches (15, 16), the first actuating part being immobilized, in a position of equilibrium (P), with respect to a first member (2, 6). The device further comprises second elastic means (22) supported, on a mobile branch (15, 16) of the first elastic means (13) and, designed, in the position of equilibrium, to bear against a support portion (24) of the second member (2, 6).

Abstract: The invention relates to a drive with an energy recovery and retarder function. The drive (1) comprises a hydrostatic piston engine (12) which is connected to an accumulator (16) for storing pressure energy and to a pressure limiting valve (19) for generating a braking action. Arranged downstream of the pressure limiting valve (19) is a cooler (45). The drive (1) also comprises a hydraulic motor (35) for driving a cooler fan (33), wherein the hydraulic motor (35) is acted on with a pressure medium which is delivered by the hydrostatic piston engine (12).

Abstract: Disclosed is a lifting gear valve arrangement for controlling a double-action lifting gear or an add-on unit with a continuously adjustable directional control valve and with an individual pressure compensator via which a pressure medium volume flow to and from a lifting cylinder of the lifting gear can be controlled. A proportionally adjustable pressure limiting valve is provided in the pressure medium flow path between an outlet connection of the directional control valve and a working connection of the lifting gear valve arrangement, via which the pressure inside this area can be limited to a maximum value. The adjustment of the pressure limiting valve is preferably performed as a function of the operating states of the lifting gear or of the type of add-on unit.

Abstract: Pressure regulator device comprising a body (1), a minimum of a pressure reducer and a damper mounted in control and damping cavities, respectively, in the body (1), and a control member (4) pivoting on an upper face (10) of the body (1). The device is noteworthy in that the control and damping cavities have open ends in a peripheral face (12) of the body (1) and the control member (4) has parts (47) that are opposite the peripheral face (12) in order to face the open ends of the respective control and damping cavities, from which control (21) and damping pushrods, respectively, project. The present invention has an application us the hydraulic remote controls of civil engineering machines.

Abstract: A hydraulic control device according to the invention is of load-sensing design and serves to actuate a first hydraulic load and a second hydraulic load. Also provided are a first control valve for actuating the first hydraulic load and a second control valve for actuating the second hydraulic load. A first load signal can be measured on the basis of a load pressure with which the first hydraulic load is acted on, and a second load signal can be measured on the basis of a load pressure with which the second hydraulic load is acted on. Pressure medium from a pressure medium source can be supplied in parallel to the first control valve and to the second control valve. A load signal path can, in order to actuate an adjusting element which is assigned to the pressure medium source, be acted on with a highest presently measured load signal. A limiting device allows the second load signal to be limited to a predefined signal limit value.

Abstract: A web offset printing press that prints and processes at least one material web and has printing units and/or printing unit assemblies, at least one folder, and transport elements operates by transporting the at least one material web by the transport elements through a web of the printing press into the at least one folder, electrically driving the at least one folder, the printing units and/or printing unit assemblies and the transport elements at least partially mechanically independently of each other, and synchronizing during printing operation via specified setpoints values of at least one master axis with an electronically generated synchronization clock, and starting from a initial state of the at least one folder in which the master axis and/or condition of motion of the folder are independent of each other, adapting by the at least one folder its initial state to or synchronizing by the at least one folder its initial state with setpoint value assignments of the master axis, by performing compensati

Abstract: A web offset printing press that prints and processes at least one material web and has printing units and/or printing unit assemblies, at least one folder, and transport elements operates by transporting the at least one material web by the transport elements through a web of the printing press into the at least one folder, electrically driving the at least one folder, the printing units and/or printing unit assemblies and the transport elements at least partially mechanically independently of each other, and synchronizing during printing operation via specified setpoints values of at least one master axis with an electronically generated synchronization clock, and starting from a initial state of the at least one folder in which the master axis and/or condition of motion of the folder are independent of each other, adapting by the at least one folder its initial state to or synchronizing by the at least one folder its initial state with setpoint value assignments of the master axis, by performing compensati

Abstract: A contactless energy supply for electrical consumers mounted on the mobile part of a linear motor is provided, the energy supply being provided without additional voltage sources. A higher frequency energy supply field is superposed over the propulsion field, the energy supply field being inductively decoupled using the energy transmitting interface of the secondary part, and supplying consumers mounted on the secondary part with energy.

Abstract: The invention relates to a hydraulic control system for providing at least one hydraulic consumer with a pressure medium. Said system comprises an LS pump system and a metering port for adjusting the pressure medium volume flow rate towards the consumer. The LS line is connected to a pressure medium sink via a current regulator. The invention is characterized in that the current regulator can be adjusted depending on the pump rate in order to modify the pressure drop at the metering port.

Abstract: What is disclosed is a brake system for a mobile machine, e.g., for a wheel loader, comprising two hydraulic circuits to each of which at least one respective wheel brake cylinder is associated. Control of the wheel brake cylinders is effected through a brake valve arrangement which, in accordance with the invention, is formed by two brake valves each realized with a hydraulic pilot control, wherein the braking pressure at the one brake valve is reported via a control line into a pilot control chamber of the other brake valve.

Abstract: The invention relates to a hydrostatic drive. The hydrostatic drive (1) includes a hydraulic pump (3) and a hydraulic motor (7). The hydraulic pump (3) may be connected by way of a first working line (5) to a first working line connection (8) of the hydraulic motor (7) and by way of a second working line (6) to a second working line connection (9) of the hydraulic motor (7). Furthermore, the hydrostatic drive (1) includes a first storage means (40) for storing pressure energy and a second storage means (41). For recovery of the pressure energy stored in the first storage means, the latter may be connected, at least for one direction of conveying, to a first or second working line (5, 6) which is on the suction side in relation to the hydraulic pump (3) in this direction of conveying.

Abstract: The invention relates to a method for exchanging data between stations or nodes (111, 121, 122, 123, 131, 132, 133, 141, 142, 143) from different realtime capable networks (120, 130, 140) and from non-realtime capable networks (110). To this end, data is generated in a realtime capable network (120, 130, 140), a time stamp is added, and at least two of the realtime capable networks (120, 130, 140) are synchronized with one another. The invention also relates to a method for exchanging data between stations or nodes (111, 121, 122, 123, 131, 132, 133, 141, 142, 143) from realtime capable networks (120, 130, 140) and from non-realtime capable networks (110), during which trigger signals of different stations (111, 121, 122, 123, 131, 132, 133, 141, 142, 143), particularly from different networks (110, 120, 130, 140) are combined or linked.

Abstract: Remote control for a mobile machine, in particular a heavy construction machine, agricultural or handling machine comprising a remote control body, a lever fixedly attached to a handle designed to be held by a user, means for connecting the lever to the body allowing a movement of the lever relative to the body on at least one axis, and means for detecting the relative movement of the lever relative to the body of the remote control, the signals originating from the detection means being designed for the control of a member of the mobile machine. The detection means are of the contactless type, and the remote control body comprises a sealed wall separating on the one hand the detection means that are situated on a first side of the sealed wall, and on the other hand, the lever and the means for connecting the lever to the body that are situated on a second side of the sealed wall.

Abstract: A bus module for connecting electrically triggerable fluidic valves to a data bus. The bus module has an electrical circuit configuration, which evaluates address data and user data from data telegrams transmitted on the data bus and which triggers a fluidic valve determined by the address data in accordance with the user data of the data telegram. In order to keep the current load on the bus module low particularly when triggering hydraulic valves, the electronic circuit configuration, following the reception of user data in the form of a switch-on command for one of the fluidic valves connected to the bus module, first constantly supplies a supply voltage to the fluidic valve determined by the address data during a gate-controlled rise time of specifiable duration. Following the expiration of the gate-controlled rise time, the electronic circuit configuration supplies the fluidic valve with the supply voltage in a pulse width modulated form having a specifiable pulse control factor.

Abstract: The invention relates to a hydrostatic drive (1) and to a method of braking a hydrostatic drive (1). In the hydrostatic drive (1), in a closed circuit a hydraulic pump (3) is connected by a first and a second working line (11, 12) to a hydraulic motor (4). The hydrostatic drive (1) comprises a brake actuation device (37) as well as at least one pressure relief valve (26, 30), which is connected to the working line disposed downstream of the hydraulic motor (4). The hydraulic pump (3) upon detection of an actuation of the brake actuation device (37) is adjustable to a braking delivery rate. The hydraulic motor (4) is adjusted in dependence upon the actuating intensity of the brake actuation device (37) in the direction of a larger absorption volume if the actuating intensity of the brake actuation device (37) increases.

Abstract: A method of controlling a hydrostatic drive is provided. The hydrostatic drive has a hydraulic pump and a hydraulic engine. The hydrostatic drive further has a first and a second hydraulic reservoir for storing and recuperating energy. Pressure energy is stored in the first reservoir. For the purpose of recuperating the pressure energy stored in the first reservoir, the first reservoir is connected to a suction side of the hydraulic pump. A downstream working line of the hydraulic engine is connected to the second reservoir. In addition, the downstream working-line connection of the hydraulic engine is disconnected from the suction side of the hydraulic pump.

Abstract: The invention relates to a hydraulic control device for a priority, first hydraulic consumer and a subordinate, second hydraulic consumer, pressure medium being deliverable to the first or the second consumer via a first or a second metering diaphragm. A pressure scale which allows a constant pressure difference to be adjusted above the first metering diaphragm is mounted upstream from the first metering diaphragm. For this purpose, said pressure scale is provided with a valve piston encompassing a first control edge, by means of which a first flow area between a feeding duct and the first metering diaphragm can be controlled. A second control edge which allows a second flow area to be controlled between the feeding duct and a load signaling line is provided on the valve piston of the first pressure scale.

Abstract: The invention discloses a hydraulic control arrangement for controlling a number of consumers, particularly of a mobile working machine. In addition to the consumers of the control arrangement, an additional consumer should be able to be connected to a power beyond port. All consumers and power beyond consumers are supplied with hydraulic fluid by a pump. An input pressure scale is provided downstream of the pump, and the greater of the load pressures of the consumers or of the at least one power beyond consumer is applied to the control port of said input pressure scale.

Abstract: A hybrid electro-hydraulic drive system is provided for a vehicle and comprises a hydraulic transmission including a first hydraulic machine and at least one second hydraulic machine drivingly connected to drive wheels of the motor vehicle for driving thereof, an electric motor/generator operatively connected to the first hydraulic machine, and at least one energy storage device operable to store and release a hydraulic fluid energy or an electrical energy. The second hydraulic machine is a reversible hydraulic pump/motor unit capable to function both as a hydraulic pump and a hydraulic motor. The energy storage device is operatively connected to either the hydraulic transmission or the electric motor/generator. In a retarding mode the hydraulic transmission and/or the electric motor/generator retard the vehicle, while in a driving mode they supply a supplementary power to the drive wheels to assist propulsion of the vehicle.

Abstract: With a method for synchronization in a redundant communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, at least two telegrams containing synchronization information being transmitted by the central participant to the at least one further participant, if there is a transmission error involving a telegram containing synchronization information, it is still possible to carry out synchronization due to the fact that, based on the synchronization information contained in the at least two telegrams, resultant synchronization information is obtained and is used to synchronize the further participants with the central participant.