Patent application number | Description | Published |
20120109435 | CONTROL UNIT, IN PARTICULAR FOR A HYBRID VEHICLE, HAVING AN ELECTRIC DRIVE AND AN INTERNAL COMBUSTION ENGINE, AND A METHOD FOR OPERATING A HYBRID VEHICLE - 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. | 05-03-2012 |
20120278007 | METHOD FOR CHECKING THE PLAUSIBILITY OF THE TORQUE OF AN ELECTRIC MACHINE AND MACHINE CONTROLLER FOR CONTROLLING AN ELECTRIC MACHINE AND FOR CARRYING OUT THE METHOD - 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. | 11-01-2012 |
20130100982 | Monitoring the temperature change in the charging cable - A method for determining the temperature change of a feeder cable of a charging device in that, in a first task, the electromagnetic input pulse is coupled into the feeder cable, the electromagnetic input pulse being able to be reflected in the feeder cable and the reflected portion returning to the charging device as reflected electromagnetic output pulse; in a second task, the pulse shape of the reflected electromagnetic output pulse is determined; in a third task, the pulse shape of the reflected electromagnetic output pulse is compared to a reference pulse shape of the reflected reference pulse; in a fourth task, the temperature change is determined by comparing the two pulse shapes. | 04-25-2013 |
20130221997 | METHOD AND DEVICE FOR MONITORING THE INSULATION RESISTANCE IN AN UNGROUNDED ELECTRICAL NETWORK - 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. | 08-29-2013 |
20140015463 | METHOD FOR OPERATING AN ELECTRIC MACHINE IN A SHORT-CIRCUIT MODE - A method for operating an electric machine ( | 01-16-2014 |
20140125268 | METHOD AND DEVICE FOR OPERATING AN ELECTRICAL MACHINE HAVING SEPARATE EXCITATION - 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. | 05-08-2014 |
20150224882 | CHARGING DEVICE FOR INDUCTIVE CHARGING - 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. | 08-13-2015 |
20160001674 | APPARATUS FOR PROVIDING AN ELECTRIC VOLTAGE WITH A SERIAL STACK CONVERTER AND A DRIVE ARRANGEMENT - 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. | 01-07-2016 |
20160006080 | DEVICE FOR PROVIDING AN ELECTRICAL VOLTAGE AS WELL AS DRIVE ARRANGEMENT AND METHOD - 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. | 01-07-2016 |
20160006276 | APPARATUS AND METHOD FOR STATE OF CHARGE COMPENSATION OF AN ENERGY STORAGE SYSTEM - 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. | 01-07-2016 |
20160006277 | APPARATUS AND METHOD FOR STATE OF CHARGE COMPENSATION FOR A BATTERY SYSTEM - The invention relates to an apparatus ( | 01-07-2016 |