Abstract: A method for producing a tooth geometry includes selecting a root-side starting contour configured as an ellipse segment and a head-side partial contour of a tooth; selecting an adaptation region for at least a part of the root-side starting contour; determining for the adaptation region a correction specification determined using a correction function configured as an at least third-order polynomial having at least one adjustable function parameter comprising adjustable coefficients; modifying the root-side starting contour using the correction specification to form a root-side final contour, and producing the tooth geometry by chip-removing machining based on the head-side partial contour and the root-side final contour. Also disclosed are a computer program product for carrying out the method, a tool for manufacturing the tooth geometry based on the method, and a machine component having the tooth geometry.

Abstract: A method for producing a tooth geometry includes selecting a root-side starting contour configured as an ellipse segment and a head-side partial contour of a tooth; selecting an adaptation region for at least a part of the root-side starting contour; determining for the adaptation region a correction specification determined using a correction function configured as an at least third-order polynomial having at least one adjustable function parameter comprising adjustable coefficients; modifying the root-side starting contour using the correction specification to form a root-side final contour, and producing the tooth geometry by chip-removing machining based on the head-side partial contour and the root-side final contour. Also disclosed are a computer program product for carrying out the method, a tool for manufacturing the tooth geometry based on the method, and a machine component having the tooth geometry.

Abstract: The invention describes a method for detecting isolated operation of power generation instillations (5) which are set up to generate electrical power and can be coupled to an interconnected power supply system (1) for feed operation. The power generation installation (5) operates in isolation with respect M the interconnected power supply system when no power is exchanged between the power generation installation (5) and the interconnected power supply system (1). The method has the steps of; recording the temporal profile of the maims frequency present in the region in which the power generation installation (5) is connected to the interconnected power supply system (1) and evaluating the temporal profile of the mains frequency in order to detect isolated operation.

Abstract: A conditioning device is described for power supply networks (2) having a network voltage measurement unit (3) which can be connected to a three-phase power supply network (2), having a computation unit (1) which is connected to the network voltage measurement unit (3) and is used to determine conditioning current values (K) and having an inverter unit (4) which is connected to the power supply network (2) and is used to feed in conditioning currents (IK) as a function of the determined conditioning current values (K). The computation unit (1) is designed for modeled simulation of a synchronous machine in order to determine at least one component of the conditioning current values (K) as stator currents of the simulated synchronous machine as a function of freely variable synchronous machine parameters, using the network voltages (UN), measured in three phases, of the power supply network (2) as input variables.

Abstract: An actuating arrangement and method for opening and closing a hinged motor vehicle panel utilizes a controllable fluid drive and an uncontrolled fluid drive. The hinged motor vehicle panel is driven during opening from a starting position to a predetermined opening angle by the controlled fluid drive and, after reaching the predetermined angle of opening, is driven into its final position exclusively by the uncontrolled fluid drive.

Abstract: An actuating arrangement for opening and closing a hinged motor vehicle panel has a fluid drive, a control unit, and a sensor unit. The hinged motor vehicle panel is movable between a starting position and an end position, and the control unit evaluates start signals from the sensor unit and stopping the movement of the motor vehicle panel in an intermediate position. The start signals from the sensor unit correspond to current angles of opening of the hinged motor vehicle panel, and predetermined angles of opening of the hinged motor vehicle panel define certain criteria. It is possible to set at least the angle of opening of the intermediate position via the control unit.

Abstract: An actuating arrangement for opening and closing a hinged motor vehicle panel has a fluid drive, a control unit, and a sensor unit. The hinged motor vehicle panel is movable between a starting position and an end position, and the control unit evaluates start signals from the sensor unit and stopping the movement of the motor vehicle panel in an intermediate position. The start signals from the sensor unit correspond to current angles of opening of the hinged motor vehicle panel, and predetermined angles of opening of the hinged motor vehicle panel define certain criteria. It is possible to set at least the angle of opening of the intermediate position via the control unit.

Abstract: An actuating arrangement and method for opening and closing a hinged motor vehicle panel utilizes a controllable fluid drive and an uncontrolled fluid drive. The hinged motor vehicle panel is driven during opening from a starting position to a predetermined opening angle by the controlled fluid drive and, after reaching the predetermined angle of opening, is driven into its final position exclusively by the uncontrolled fluid drive.