Abstract: A method of operating an inverter, and inverter, and a drive unit. The inverter is adapted for outputting phase currents to an electric motor and includes several power switches controlled by a control device of the inverter. The power switches of the inverter are controlled according to a standard inverter control strategy based on a torque request signal such that an output power of the inverter being determined by output signals of the inverter generally corresponds to the torque request signal. The unfiltered torque request signal is compared with a filtered torque request signal for determining a thermal stress factor of the inverter. The filtered torque request signal includes trailing edges having a reduced slew rate compared to trailing edges of the unfiltered torque request signal. It is changed to an adapted inverter control strategy if the thermal stress factor exceeds a first predetermined threshold.

Abstract: A method for controlling a power converter having at least one switching cell and a control unit configured to control the at least one switching cell at a switching frequency such that to deliver an output signal. The method includes regularly adjusting the switching frequency through the control unit such that the switching frequency varies within a period of the output signal. The switching frequency is selected among a set of at least two switching frequencies.

Abstract: A network communication system for a vehicle includes a communication bus, a first communication device, and a plurality of second communication devices which are connected to one another via the communication bus.

Abstract: A geared motor includes a gearbox with an input shaft, an electric motor with a rotor, wherein the rotor is coupled to or mounted on the input shaft of the gearbox at a first side of the input shaft. A position indicator is designed to indicate an angular position of the rotor. In detail, the position indicator is mounted on the input shaft of the gearbox at a second side vis-à-vis of its first side. Moreover, a geared vehicle may include such a geared motor.

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1), wherein the sensor arrangement (2) has a central unit (3) and a plurality of sensor units (S1, S2, S3), the central unit (3) and the sensor units (S1, S2, S3) are connected to a bus cable (4) and via the bus cable (4) a communication takes place between the central unit (3) and the sensor units (S1, S2, S3) with the following steps: alternately carrying out a power supply phase (E) and a communication phase (K), supplying the sensor units (S1, S2, S3) with energy in the power supply phase (E), repeatedly carrying out a communication cycle in the communication phase (K), having the following steps: sending a command (F1, F2, F3) from the central unit (3) to at least one sensor unit (S1, S2, S3), receiving a response (A1, A2, A3) of a sensor unit (S1, S2, S3) in the central unit (3), receiving a respective energy status information item (ES1, ES2, ES3) from all sensor units (S1, S2, S3) in the central unit (3) an

Abstract: A stator for an electrical machine, with at least one laminated stator core, and with at least one end cap following the laminated stator core in the axial direction of the stator, at least one line element, which is formed separately from the end cap and separately from the laminated stator core and has at least one first cooling channel, through which a cooling medium for cooling the stator may flow, being provided, having a first length region, extending in the laminated stator core, and a second length region, which extends in the end cap, which has at least one second cooling channel, through which the cooling medium may flow and which is fluidically connected to the first cooling channel.

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1) based on a DSI protocol, wherein the sensor arrangement (2) has a central processing unit (3) as a master and a plurality of sensor units (S1, S2, S3) as slaves controlled by the master, the central processing unit (3) and the sensor units (S1, S2, S3) are connected to a bus line (4) and communication between the central processing unit (3) and the sensor units (S1, S2, S3) takes place via the bus line (4), characterized by the following method steps: sending a first message from the central processing unit (3) to a first sensor (S1) and subsequently sending a second message from the central processing unit (3) to a second sensor (S2) without the central processing unit (3) waiting to receive a response message from the first sensor (S1).

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1) on the basis of a DSI protocol in a Power Function Class mode, wherein the sensor arrangement (2) has a central unit (3) and a multiplicity of sensor units (S1, S2, . . . , SN), the central unit and the sensor units are connected to one another in series by means of a bus cable (4), the sensor units each have a test resistor (RS1, RS2, . . . , RN) connected in series with the bus cable, an electrical test load (L1, L2, . . . , LN) that can be connected to the bus cable, and an address counter (A1, A2, . . .

Abstract: The DSI protocol (distributed system interface) that relates to the bus communication in sensor arrangements is known from the prior art. Methods are proposed for operating a sensor arrangement (12) on the basis of the DSI protocol in order to consequently be able to operate, in particular in an advantageous manner, active sensor units (20A-20F) having a transmitter (21) and a receiver (22). In particular, the use of three part phases is proposed for the communication between the processing unit (14) and the active sensor unit (20A-20F), namely a CRM phase (40) for the bidirectional communication between the processing unit (14) and the active sensor unit (20A-20F), a power phase (43) for the transmission of energy from the processing unit (14) to the active sensor units (20A-20F) and a PDCM phase for the unidirectional transmission of data from the active sensor unit (20A-20F) to the processing unit (14).

Abstract: A method for operating a sensor arrangement in a motor vehicle on the basis of a DSI protocol is disclosed. The sensor arrangement has a central unit as a master and a plurality of sensor units, each having a receiver as slaves controlled by the master. The central unit and the sensor units are connected to a bus line and via the bus cable a communication takes place between the central unit and the sensor units. The method includes selecting a first group of sensor units by the central unit for a first measurement, assigning a first time slot or first time slots within a first cycle respectively to one of the sensor units from the first group by means of the central unit, and broadcasting corresponding first time slot information from the central unit to the sensor units.

Abstract: The invention relates to a network communication system (50), in particular for a vehicle, having a communication bus (56), a first communication device (52) and a plurality of second communication devices (54) which are connected to one another via the communication bus (56), wherein the first communication device (52) comprises a bias voltage source (64) for generating a constant bias voltage on the communication bus (56), the first communication device (52) comprises a current measurement apparatus (66) for capturing the current on the communication bus (56), the network communication system (50) has a terminating resistor (60) which is arranged in parallel with the plurality of second communication devices (54), the first communication device (52) comprises a first modulation apparatus (72) for modulating a current set by the bias voltage and the terminating resistor (60) on the communication bus (56), each second communication device (54) comprises a second modulation apparatus (78) for modulating the cu

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1), wherein the sensor arrangement (2) has a central unit (3) and a plurality of sensor units (S1, S2, S3), the central unit (3) and the sensor units (S1, S2, S3) are connected to a bus cable (4) and via the bus cable (4) a communication takes place between the central unit (3) and the sensor units (S1, S2, S3) with the following steps: alternately carrying out a power supply phase (E) and a communication phase (K), supplying the sensor units (S1, S2, S3) with energy in the power supply phase (E), repeatedly carrying out a communication cycle in the communication phase (K), having the following steps: sending a command (F1, F2, F3) from the central unit (3) to at least one sensor unit (S1, S2, S3), receiving a response (A1, A2, A3) of a sensor unit (S1, S2, S3) in the central unit (3), receiving a respective energy status information item (ES1, ES2, ES3) from all sensor units (S1, S2, S3) in the central unit (3) an

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1) based on a DSI protocol, wherein the sensor arrangement (2) has a central processing unit (3) as a master and a plurality of sensor units (S1, S2, S3) as slaves controlled by the master, the central processing unit (3) and the sensor units (S1, S2, S3) are connected to a bus line (4) and communication between the central processing unit (3) and the sensor units (S1, S2, S3) takes place via the bus line (4), characterized by the following method steps: sending a first message from the central processing unit (3) to a first sensor (S1) and subsequently sending a second message from the central processing unit (3) to a second sensor (S2) without the central processing unit (3) waiting to receive a response message from the first sensor (S1).

Abstract: The invention relates to a method for operating a sensor arrangement in a motor vehicle (1) on the basis of a DSI protocol, wherein the sensor arrangement (2) has a central unit (3) as a master and a plurality of sensor units (S1, S2, S3, S4, S5, S6) each having a receiver (6) as slaves controlled by the master, and the central unit (3) and the sensor units (S1, S2, S3, S4, S5, S6) are connected to a bus cable (4). In the method, communication takes place via the bus cable (4) between the central unit (3) and the sensor units (S1, S2, S3, S4, S5, S6) in such a way that the master selects whichever slaves are assigned time slots (ZS1, ZS2, ZS3, ZS4, ZS5, ZS6) for sending data. The time slots (ZS1, ZS2, ZS3, ZS4, ZS5, ZS6) are therefore not statically assigned but dynamically assigned. Specifically, it is thus the case that for a particular measurement not all slaves receive an assigned time slot for sending data.

Abstract: The DSI protocol (distributed system interface) that relates to the bus communication in sensor arrangements is known from the prior art. Methods are proposed for operating a sensor arrangement (12) on the basis of the DSI protocol in order to consequently be able to operate, in particular in an advantageous manner, active sensor units (20A-20F) having a transmitter (21) and a receiver (22). In particular, the use of three part phases is proposed for the communication between the processing unit (14) and the active sensor unit (20A-20F), namely a CRM phase (40) for the bidirectional communication between the processing unit (14) and the active sensor unit (20A-20F), a power phase (43) for the transmission of energy from the processing unit (14) to the active sensor units (20A-20F) and a PDCM phase for the unidirectional transmission of data from the active sensor unit (20A-20F) to the processing unit (14).

Abstract: A stator for an electrical machine, with at least one laminated stator core, and with at least one end cap following the laminated stator core in the axial direction of the stator, at least one line element, which is formed separately from the end cap and separately from the laminated stator core and has at least one first cooling channel, through which a cooling medium for cooling the stator may flow, being provided, having a first length region, extending in the laminated stator core, and a second length region, which extends in the end cap, which has at least one second cooling channel, through which the cooling medium may flow and which is fluidically connected to the first cooling channel.

Abstract: The invention relates to a method for operating a sensor arrangement (2) in a motor vehicle (1) on the basis of a DSI protocol in a Power Function Class mode, wherein the sensor arrangement (2) has a central unit (3) and a multiplicity of sensor units (S1, S2, . . . , SN), the central unit and the sensor units are connected to one another in series by means of a bus cable (4), the sensor units each have a test resistor (RS1, RS2, . . . , RN) connected in series with the bus cable, an electrical test load (L1, L2, . . . , LN) that can be connected to the bus cable, and an address counter (A1, A2, . . .

Abstract: The invention relates to the use of a novel silica-supported trimetallic (La/Zr/Zn) catalyst in the production of 1,3-butadiene from ethanol. The presence of lanthanum in the catalyst further comprising zirconium and zinc increases the catalyst's yield and selectivity to 1,3-butadiene.

Abstract: The invention relates to the use of a novel silica-supported trimetallic (La/Zr/Zn) catalyst in the production of 1,3-butadiene from ethanol. The presence of lanthanum in the catalyst further comprising zirconium and zinc increases the catalyst's yield and selectivity to 1,3-butadiene.

Abstract: A cooling system for a geared motor, and a geared motor having electric motors and a gear unit as well as an adapter which is disposed between the electric motors and the gear unit, the electric motors having ducts for a coolant, in particular, a coolant, especially a cooling liquid, being able to flow through each of the motors which, in particular, are liquid-cooled, the streams of coolant emerging from the ducts being brought together and being fed at least proportionally by a first distributor to the gear unit in order to lubricate and cool the toothing parts of the gear unit.