Abstract: Apparatus for generating an optical pattern from image points in an image plane, including: a control unit; a micro-mirror array; an illumination unit controllable by the control unit; a focusing unit; the control unit being configured to control one or several micro-mirror groups formed of several micro-mirrors of the multitude of micro-mirrors such that the centroid beams reflected at the micro-mirrors of one of the micro-mirror groups meet in the image plane, and such that optical path lengths of the centroid beams reflected at the micro-mirrors of the respective micro-mirror group are equal from the illumination unit up to the image plane or differ by an integer multiple of a wavelength of the light beams in order to generate an image point of the image points in such a way.

Abstract: Apparatus for generating an optical pattern from image points in an image plane, including: a control unit; a micro-mirror array; an illumination unit controllable by the control unit; a focusing unit; the control unit being configured to control one or several micro-mirror groups formed of several micro-mirrors of the multitude of micro-mirrors such that the centroid beams reflected at the micro-mirrors of one of the micro-mirror groups meet in the image plane, and such that optical path lengths of the centroid beams reflected at the micro-mirrors of the respective micro-mirror group are equal from the illumination unit up to the image plane or differ by an integer multiple of a wavelength of the light beams in order to generate an image point of the image points in such a way.

Abstract: A device for balancing an energy accumulator, especially an energy accumulator in an on-board power supply system of a motor vehicle, is provided. The energy accumulator is formed by a cell assembly of a serial connection of a plurality of cell groups, respective balancing circuits being connected to voltage connections of respective cell groups and comprising a discharge resistor. The discharge resistor of a respective balancing circuit has a temperature-dependent resistance characteristic, and the discharge resistors of at least some of the balancing circuits are thermally intercoupled.

Abstract: The invention relates to a method and a device for locally defined machining on surfaces of workpieces. A laser beam (1) emitted by a laser radiation source (2) is aimed onto the reflecting surfaces of a plurality of adjacently arranged micromirrors that may be controlled individually with an electronic control and that are pivotable about at least one axis. Sub-beams (4) reflected by the reflecting surfaces of the micromirrors pivoted in a defined manner are incident and focused on the surface of a workpiece, which surface is arranged in the focal plane (6) of the focusing optics unit (5), at different adjustable positions, so that simultaneously a locally defined change in the workpiece material and/or a locally defined material removal with prespecifiable geometry is attained in a region of the workpiece near its surface.

Abstract: A suitable electrical system for a motor vehicle is provided, which system requires a voltage supply during a possible towing-away operation. A voltage-supply control device recognizes the provision of an external voltage supply, in particular by way of a towing vehicle for the motor vehicle, and controls the voltage supply in the motor vehicle in such a manner that only one or more subsystems of the entire electrical system of the motor vehicle are supplied with voltage.

Abstract: The amount of energy actually available in an energy storage module having a plurality of individual storage elements connected in series is determined. An upper and/or a lower limit voltage for the energy storage module is determined dynamically. During a charging operation of the energy storage module, in the event that a maximally permissible upper cell voltage is reached on at least one storage cell, the upper limit voltage of the energy storage module is determined by summing all cell voltages of all storage elements existing at that point-in-time. During a discharging operation, if a minimally permissible lower cell voltage is reached on at least one storage element, the lower limit voltage is determined by summing all cell voltages existing at that point-in-time. The actually available amount of energy is computed as a function of the determined limit voltage or voltages and of the determined actual storage capacity.

Abstract: A device for balancing an energy accumulator, especially an energy accumulator in an on-board power supply system of a motor vehicle, is provided. The energy accumulator is formed by a cell assembly of a serial connection of a plurality of cell groups, respective balancing circuits being connected to voltage connections of respective cell groups and comprising a discharge resistor. The discharge resistor of a respective balancing circuit has a temperature-dependent resistance characteristic, and the discharge resistors of at least some of the balancing circuits are thermally intercoupled.

Abstract: The amount of energy actually available in an energy storage module having a plurality of individual storage elements connected in series is determined. An upper and/or a lower limit voltage for the energy storage module is determined dynamically. During a charging operation of the energy storage module, in the event that a maximally permissible upper cell voltage is reached on at least one storage cell, the upper limit voltage of the energy storage module is determined by summing all cell voltages of all storage elements existing at that point-in-time. During a discharging operation, if a minimally permissible lower cell voltage is reached on at least one storage element, the lower limit voltage is determined by summing all cell voltages existing at that point-in-time. The actually available amount of energy is computed as a function of the determined limit voltage or voltages and of the determined actual storage capacity.

Abstract: A suitable electrical system for a motor vehicle is provided, which system requires a voltage supply during a possible towing-away operation. A voltage-supply control device recognizes the provision of an external voltage supply, in particular by way of a towing vehicle for the motor vehicle, and controls the voltage supply in the motor vehicle in such a manner that only one or more subsystems of the entire electrical system of the motor vehicle are supplied with voltage.