Abstract: A vehicle traction device having at least one energy storage component; at least one traction component; at least one acceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor; and at least one deceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor. The at least one acceleration/deceleration sensor is responsive to an operator input, and when the operator input is applied to the at least one acceleration/deceleration sensor, the energy traction device is signaled to transfer energy from the at least one energy storage component to the forward propulsion of the vehicle, or vice versa, using the at least one traction component. The vehicle traction device may be incorporated into, for example, a wheel, a motor, and/or a transmission.

Abstract: A vehicle traction device having at least one energy storage component; at least one traction component; at least one acceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor; and at least one deceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor. The at least one acceleration/deceleration sensor is responsive to an operator input, and when the operator input is applied to the at least one acceleration/deceleration sensor, the energy traction device is signaled to transfer energy from the at least one energy storage component to the forward propulsion of the vehicle, or vice versa, using the at least one traction component. The vehicle traction device may be incorporated into, for example, a wheel, a motor, and/or a transmission.

Abstract: A vehicle traction device having at least one energy storage component; at least one traction component; at least one acceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor; and at least one deceleration sensor including a pressure sensor, a motion sensor, a gyroscopic sensor, an accelerometer, and/or a piezoelectric sensor. The at least one acceleration/deceleration sensor is responsive to an operator input, and when the operator input is applied to the at least one acceleration/deceleration sensor, the energy traction device is signaled to transfer energy from the at least one energy storage component to the forward propulsion of the vehicle, or vice versa, using the at least one traction component. The vehicle traction device may be incorporated into, for example, a wheel, a motor, and/or a transmission.

Abstract: A device supplying an electrical voltage from a battery system includes a series connection composed of a first battery submodule supplying a first battery submodule voltage and at least one second battery submodule supplying a second battery submodule voltage, a first voltage conversion module receiving the first battery submodule voltage and converting the first battery submodule voltage into an AC output voltage to be supplied to an electrical component connected to the first voltage conversion module, and a coupling device electrically connecting the first voltage conversion module to the first battery submodule and to the at least one second battery submodule such that the first voltage conversion module receives a sum voltage composed of the first battery submodule voltage and the second battery submodule voltage.

Abstract: A method for operating an electric machine (24) in short-circuit operation, in particular for use in a motor vehicle, characterized by the steps of: measuring at least a first and a second phase current of the electric machine (24), comparing the measured phase currents with at least one reference value each, and outputting an error message (58) if at least one of the phase currents does not agree with the respective reference value (110, 118).

Abstract: The invention relates to an apparatus (2) for state of charge compensation having a battery system (10) for providing electrical energy comprising a series connection of a first battery sub-module (13) and a second battery sub-module (13?) having a first voltage conversion module (20?) wherein the first voltage conversion module (20?) is electrically connected to the second battery sub-module (13?), and wherein an electrical component (30) can be connected to the first voltage conversion module (20?) and can be supplied with electrical energy from the connected second battery sub-module (13?), wherein the apparatus (2) has a switching device (26) for switching an electrical connection between the first battery sub-module (13) and the first voltage conversion module (20?) and wherein the apparatus (2) has a control device (11) which is designed to control the switching device (26) such that electrical energy flows from the first battery sub-module (13) to the second battery sub-module (13?) and/or that electri

Abstract: A method for discharging a high-voltage system in a vehicle, the high-voltage system having at least one energy store and a plurality of high-voltage consumers. To discharge the high-voltage system, the electrical energy store is first separated from the rest of the vehicle electrical system, and at least one of the high-voltage consumers is switched on, so that the charge stored within the system drains via the consumers.

Abstract: A charging device for inductively charging a drive battery of an electrically-drivable vehicle includes a primary coil, which can be moved in a first direction towards a secondary coil of the vehicle by a pressurized medium. The primary coil is disposed on a holding device which is at least partially elastic. A method for positioning a primary coil for inductively charging a drive battery of an electrically-drivable vehicle is also provided.

Abstract: A method and a device for operating an electrical machine having separate excitation, especially a synchronous machine. With the aid of a sensor system, a variable characterizing a rotor temperature and/or a stator temperature are/is determined, and an excitation current and stator currents for the electrical machine are specified by a control unit as a function of the variable characterizing the rotor temperature and/or the stator temperature, at least in specifiable operating ranges.

Abstract: An apparatus for supplying an electric voltage includes a battery system supplying a battery voltage and having at least two serially-connected battery modules, with each of the battery modules supplying a battery module voltage, and at least two voltage converter modules, with each of the voltage converter modules being electrically connected to a respective one of the at least two battery modules and receiving at a battery module voltage and supplying electric power to a connected electric component.

Abstract: The invention relates to an apparatus (2) for state of charge compensation having a battery system (10) for providing electrical energy comprising a series connection of a first battery sub-module (13) and a second battery sub-module (13?) having a first voltage conversion module (20?) wherein the first voltage conversion module (20?) is electrically connected to the second battery sub-module (13?), and wherein an electrical component (30) can be connected to the first voltage conversion module (20?) and can be supplied with electrical energy from the connected second battery sub-module (13?), wherein the apparatus (2) has a switching device (26) for switching an electrical connection between the first battery sub-module (13) and the first voltage conversion module (20?) and wherein the apparatus (2) has a control device (11) which is designed to control the switching device (26) such that electrical energy flows from the first battery sub-module (13) to the second battery sub-module (13?) and/or that electri

Abstract: An apparatus for state of charge compensation includes at least two energy storage modules, each energy storage module having an energy storage module voltage, at least two voltage converter modules, with each voltage converter module being electrically connected to a respective one of the at least two energy storage modules in one-to-one correspondence and forming a corresponding submodule, an electrical machine electrically connected to the at least two submodules, and a control device configured to control a flow of electrical energy between at least one of the submodules and the electrical machine.

Abstract: A device supplying an electrical voltage from a battery system includes a series connection composed of a first battery submodule supplying a first battery submodule voltage and at least one second battery submodule supplying a second battery submodule voltage, a first voltage conversion module receiving the first battery submodule voltage and converting the first battery submodule voltage into an AC output voltage to be supplied to an electrical component connected to the first voltage conversion module, and a coupling device electrically connecting the first voltage conversion module to the first battery submodule and to the at least one second battery submodule such that the first voltage conversion module receives a sum voltage composed of the first battery submodule voltage and the second battery submodule voltage.

Abstract: A charging device for inductively charging a drive battery of an electrically-drivable vehicle includes a primary coil, which can be moved in a first direction towards a secondary coil of the vehicle by a pressurized medium. The primary coil is disposed on a holding device which is at least partially elastic. A method for positioning a primary coil for inductively charging a drive battery of an electrically-drivable vehicle is also provided.

Abstract: A method for checking the plausibility of a torque of an electric machine, calculated on the basis of a machine model, in which a first value of an electromagnetic power of the electric machine is determined from the calculated torque and a rotational speed of the electric machine. Stator current components and stator phase voltage components are calculated from the stator currents and the stator phase voltages with respect to a reference system, which is fixed in relation to the stator. A second value of the electromagnetic power of the electric machine is determined from the stator current components and the stator phase voltage components. If a deviation of the first value of the electromagnetic power of the electric machine from the second value exceeds a predefined power threshold value, the torque of the electric machine, calculated on the basis of the machine model, is classified as implausible.

Abstract: A control unit for a hybrid vehicle is described, having an electric drive, and an internal combustion engine, and a method for operating a control unit, in particular for a hybrid vehicle. The hybrid vehicle has an electric drive, an internal combustion engine, a traction battery, a power electronics system, current consumers, a control unit and an insulation fault detector. The control unit initiates an emergency operating mode when an insulation fault is detected.

Abstract: Methods and associated devices are described for discharging the high-voltage network, particularly a DC voltage intermediate circuit, in which for discharging the capacitors of the high-voltage network, switching devices are used that lie between the capacitors and at least one precharging resistor and a high-voltage battery, and the switching devices are switches having a specifiable positioning of the switching contacts or switching units or relays or contactors, which are switchable with the aid of a control device. The operation of the switching units takes place in such a way that the at least one precharging resistor is used simultaneously for charging and discharging the DC voltage intermediate circuit.

Abstract: A method and a device for operating an electrical machine having separate excitation, especially a synchronous machine. With the aid of a sensor system, a variable characterizing a rotor temperature and/or a stator temperature are/is determined, and an excitation current and stator currents for the electrical machine are specified by a control unit as a function of the variable characterizing the rotor temperature and/or the stator temperature, at least in specifiable operating ranges.

Abstract: A method for operating an electric machine (24) in short-circuit operation, in particular for use in a motor vehicle, characterized by the steps of: measuring at least a first and a second phase current of the electric machine (24), comparing the measured phase currents with at least one reference value each, and outputting an error message (58) if at least one of the phase currents does not agree with the respective reference value (110, 118).

Abstract: A method and a device for monitoring the insulation resistance in an ungrounded electrical network having a constant-voltage d.c. link and at least one inverter, connected to it, for controlling an n-phase electrical consumer in an n-phase network. A voltage to be monitored, is determined during operation of the consumer, which represents a voltage fluctuation of supply voltage potentials of the constant-voltage d.c. link with respect to a reference potential. In addition, a variable characterizing an electrical frequency of the electrical consumer is determined, particularly an electrical angular speed of the electrical consumer. A first spectral amplitude of the voltage to be monitored at the n-fold electrical frequency of the electrical consumer, is compared to a first reference value, and detects a symmetrical insulation error in the constant-voltage d.c. link or the n-phased network, if the comparison yields a deviation of the first spectral amplitude from the first reference value.