Abstract: A textile fabric with a woven support layer including at least polyethylene and/or polyester fibres. A surface coating is applied onto at least one surface of the support layer, and the surface coating includes at least one polymer blend. The polymer blend has at least one mixture of polyethylene and polyethylene-vinyl acetate, and the polymer blend has more than 40 wt. % of polyethylene-vinyl acetate, based on the total weight of the polymer blend.

Abstract: A signal-controlled crew warning system for warning people of approaching rail vehicles on an operational track located in a warning sector of a work track. The warning system includes a track-building machine for working on the work track, a positioning system for determining the position of the track-building machine, a computer-aided monitoring system for generating warning information, warning measures for generating acoustic or optical or haptic warning signals, and a radio system for wireless data transfer. The computer-aided monitoring system is configured to set boundaries of the warning sector on a basis of the current position of the track-building machine and to automatically generate warning information for the warning sector. The track-building machine has a central control unit for processing the warning information, which control unit is coupled to the computer-aided monitoring system via the radio system. The warning sector thus moves along with the track-building machine as it travels.

Abstract: The invention relates to a method for determining a position of a rail vehicle, moving on a track, by means of an optical measuring system comprising a stereo camera system and an evaluation device, wherein by means of the stereo camera system an image pair is recorded from a reference point in a lateral environment of the track and wherein by means of photogrammetry the position of the rail vehicle is determined in relation to the reference point. The position of the rail vehicle is additionally detected by means of a radio-based measuring system for real-time locating by means of anchor modules attached to the rail vehicle and by means of transponders attached to several reference points, wherein position data of the two measuring systems are compared by means of a central system unit. In this way, two independent measuring systems are used to generate position data.

Abstract: A cooling apparatus for power electronic devices having at least one cooling body comprised of a cooling plate in contact with at least one power electronic component, and having a coolant line which leads through the cooling plate, wherein a device is provided for determining the flow quantity. The coolant line has a cross-sectional tapering in the cooling plate, with at least two measurement ports for connecting a differential pressure gauge for measuring a pressure difference at the two ports, wherein one is downstream of the cross-sectional tapering at the cooling plate. The flow determination device comprises an evaluation device for determining the flow quantity from the measured pressure difference. The cross-sectional tapering is configured as a venturi element, wherein the constriction is tapped after the tapering and the wide point is tapped before the tapering with a measurement port to determine the pressure difference adopted over the venturi nozzle.

Abstract: A drive system may have at least one electric motor which can be fed via power electronics which can be connected via a DC circuit to a voltage source and an energy storage apparatus for buffering energy fed back from the electric motor. An energy storage apparatus for such a drive system may include at least one electrical storage block, a bidirectional DC/DC converter for connecting the named DC voltage circuit to the internal voltage circuit of the storage block and a control unit for controlling the DC/DC converter. The control unit may include output and feed control means for controlling the DC/DC converter. The DC/DC converter, the storage block and the control unit may be combined into an energy storage unit having a common housing in which the named components are received and at whose outer side two connections are provided for connecting to the DC voltage circuit.

Abstract: The present invention relates to an electrical energy storage apparatus having a plurality of electrical storage cells connected in series and to an inductive balun for balancing the storage cell voltages, wherein the balun has a balancer transformer having separate single coils for the storage cells and has a respective electric switch for each storage cell. Provision is made in accordance with the invention that the coils of the balancer transformer are connected to a pole of the respective storage cell via a respective at least one inductance and a switch connected to the named inductance, with the switch associated with one respective storage cell being connected via a diode to a pole of a storage cell respective arranged upstream or downstream.

Abstract: A drive system may have at least one electric motor which can be fed via power electronics which can be connected via a DC circuit to a voltage source and an energy storage apparatus for buffering energy fed back from the electric motor. An energy storage apparatus for such a drive system may include at least one electrical storage block, a bidirectional DC/DC converter for connecting the named DC voltage circuit to the internal voltage circuit of the storage block and a control unit for controlling the DC/DC converter. The control unit may include output and feed control means for controlling the DC/DC converter. The DC/DC converter, the storage block and the control unit may be combined into an energy storage unit having a common housing in which the named components are received and at whose outer side two connections are provided for connecting to the DC voltage circuit.

Abstract: A drive system may have at least one electric motor which can be fed via power electronics which can be connected via a DC circuit to a voltage source and an energy storage apparatus for buffering energy fed back from the electric motor. An energy storage apparatus for such a drive system may include at least one electrical storage block, a bidirectional DC/DC converter for connecting the named DC voltage circuit to the internal voltage circuit of the storage block and a control unit for controlling the DC/DC converter. The control unit may include output and feed control means for controlling the DC/DC converter. The DC/DC converter, the storage block and the control unit may be combined into an energy storage unit having a common housing in which the named components are received and at whose outer side two connections are provided for connecting to the DC voltage circuit.

Abstract: A motor vehicle (1) has a body (4) and a sill (3) arranged between the wheel houses (5) on a longitudinal side of the vehicle. The sill (3) has a sill element (6) that is adjustable in the lateral direction between a first end position and a second end position. At least one protruding air guiding element (7,8) is arranged on the sill element (6).

Abstract: The present invention relates to an electrical energy storage apparatus having a plurality of electrical storage cells connected in series and to an inductive balun for balancing the storage cell voltages, wherein the balun has a balancer transformer having separate single coils for the storage cells and has a respective electric switch for each storage cell. Provision is made in accordance with the invention that the coils of the balancer transformer are connected to a pole of the respective storage cell via a respective at least one inductance and a switch connected to the named inductance, with the switch associated with one respective storage cell being connected via a diode to a pole of a storage cell respective arranged upstream or downstream.

Abstract: A cooling apparatus for power electronic devices having at least one cooling body comprised of a cooling plate in contact with at least one power electronic component, and having a coolant line which leads through the cooling plate, wherein a device is provided for determining the flow quantity. The coolant line has a cross-sectional tapering in the cooling plate, with at least two measurement ports for connecting a differential pressure gauge for measuring a pressure difference at the two ports, wherein one is downstream of the cross-sectional tapering at the cooling plate. The flow determination device comprises an evaluation device for determining the flow quantity from the measured pressure difference. The cross-sectional tapering is configured as a venturi element, wherein the constriction is tapped after the tapering and the wide point is tapped before the tapering with a measurement port to determine the pressure difference adopted over the venturi nozzle.

Abstract: A drive system may have at least one electric motor which can be fed via power electronics which can be connected via a DC circuit to a voltage source and having an energy storage apparatus for buffering energy fed back from the electric motor. An energy storage apparatus for such a drive system may include at least one electrical storage block, a bidirectional DC/DC converter for connecting the named DC voltage circuit to the internal voltage circuit of the storage block and a control unit for controlling the DC/DC converter. The control unit may include output and feed control means for controlling the DC/DC converter The DC/DC converter, the storage block and the control unit may be combined into an energy storage unit having a common housing in which the named components are received and at whose outer side two connections are provided for connecting to the DC voltage circuit.

Abstract: A motor vehicle (1) has a body (4) and a sill (3) arranged between the wheel houses (5) on a longitudinal side of the vehicle. The sill (3) has a sill element (6) that is adjustable in the lateral direction between a first end position and a second end position. At least one protruding air guiding element (7,8) is arranged on the sill element (6).

Abstract: Method for operating a steering system for a motor vehicle with at least one steerable wheel, a servo drive and a superimposed gear mechanism, the steering movement, initiated by the driver of the vehicle, and the movement for producing the steering movement of the steerable wheel, initiated by the servo drive for realizing useful functions (VSR, LAFN) being superimposed by the superimposed gear mechanism into a pinion angle, the servo drive for initiating the movement being triggered by a control signal (?Md) of a control device. The servo drive is turned back in a controlled manner when a substitute mode of at least one useful function (VSR, LAFN) of the steering system is switched off or on.

Abstract: A method of varying the temperature of a tube bundle reactor for catalytic gas phase reactions upon start-up and shut-down, the tube bundle reactor comprising a major reactor portion which includes a bundle of vertically disposed reactor tubes, upper and lower tubesheets tightly connected to the upper and lower ends, respectively, of the reactor tubes, and a reactor shell enclosing the tube bundle, a heat transfer medium having a melting temperature in the range of from 100° C. to 450° C. flowing around the outer surfaces of the reactor tubes during normal operation and being circulated in at least one circuit through the major reactor portion, comprising the steps: (a) varying the heat transfer medium temperature during circulation of the heat transfer medium; and (b) passing a temperature gas through the reactor tubes at least when the heat transfer medium is not yet or no longer circulated.

Abstract: In one embodiment, the present invention includes a method for secure data exchange between an external network and an internal network (1 and 2) via a transaction interface (3), in which an external user can undertake predetermined data transactions within the internal network (2). An interface server (7) and interface memory (11) may be coupled between an external network and an internal network. The present invention discloses security techniquest that may be used, including encryption, request processing, and checking. In one embodiment, a first firewall is coupled between the external network and the interface server and a second firewall is coupled between the interface server and the internal network.

Abstract: A method of varying the temperature of a tube bundle reactor for catalytic gas phase reactions upon start-up and shut-down, the tube bundle reactor comprising a major reactor portion which includes a bundle of vertically disposed reactor tubes, upper and lower tubesheets tightly connected to the upper and lower ends, respectively, of the reactor tubes, and a reactor shell enclosing the tube bundle, a heat transfer medium having a melting temperature in the range of from 100° C. to 450° C. flowing around the outer surfaces of the reactor tubes during normal operation and being circulated in at least one circuit through the major reactor portion, comprising the steps: (a) varying the heat transfer medium temperature during circulation of the heat transfer medium; and (b) passing a temperature gas through the reactor tubes at least when the heat transfer medium is not yet or no longer circulated.

Abstract: In one embodiment, the present invention includes a method for secure data exchange between an external network and an internal network (1 and 2) via a transaction interface (3), in which an external user can undertake predetermined data transactions within the internal network (2). An interface server (7) and interface memory (11) may be coupled between an external network and an internal network. The present invention discloses security techniquest that may be used, including encryption, request processing, and checking. In one embodiment, a first firewall is coupled between the external network and the interface server and a second firewall is coupled between the interface server and the internal network.

Abstract: With a method for operating a tube bundle reactor for exothermic gas phase reactions having a tube bundle with catalyst-filled reaction tubes (2), wherein the one ends of the reaction tubes are spanned by a gas inlet hood and the other ends are spanned by a gas outlet hood and wherein around the outside of the reaction tubes a heat transfer medium flows to carry off reaction heat. An explosive gas mixture (G) is introduced into the reaction tubes (2) via the gas inlet hood and after reaction the gas mixture (G), that may still be explosive, it is led off from the reaction tubes via the gas outlet hood.

Abstract: The invention relates to a power-assisted steering system of a motor vehicle with a steering handing device for specifying a steering wheel angle as a measure of a desired steering angle for at least one steerable wheel of the motor vehicle, a steering gear with a pinion, which converts a pinion angle, which depends on the steering wheel angle, into the steering angle of the at least one steerable wheel of the motor vehicle, superimposing means for producing an additional angle and for producing the pinion angle from superimposing the additional angle on the steering wheel angle and a servo drive with an electronically controllable hydraulic pump for realizing a variable moment support, the amount, flowing through the electronically controllable hydraulic pump being determined as a function of a rotational speed of the pinion angle ({dot over (?)}G) and controlled by a control signal (id) of a control device of the steering system.