Abstract: A method for driving wheels of at least one axle of a vehicle may include dictating a setpoint for a torque to be provided by at least one drive unit for a given operating range, verifying a driving mode in which a better efficiency is achieved for the given operating range, and driving the wheels in the driving mode in which the better efficiency is achieved. The at least one drive unit may be selected from a first drive unit and a second drive unit. The first and second drive units may be associated with the at least one axle. The driving mode may be selected from a first driving mode and a second driving mode. The wheels in the first driving mode may be driven by the first drive unit. The wheels in the second driving mode may be driven by the first and second drive units.

Abstract: A method for operating an electric machine including a rotor and a stator is connected to a first or a second power electronics assembly (PEA), the first or the second PEA including a circuit arrangement that produces a freewheeling condition or an active short circuit condition for a winding of the rotor or the stator, to a DC voltage network having a battery, and the first or the second PEA including an inverter formed by the circuit arrangement. The method includes, in response to a primary fault signal indicating a fault the first or the second PEA, actuating the first or the second PEA to produce the freewheeling condition, and in response to a secondary fault signal indicating a nonreceptiveness of the battery for power fed by the electric machine to the DC voltage network, actuating both the first and the second PEA to produce the active short circuit condition.

Abstract: A round bending machine for round bending sheet metal comprises an upper roller and at least one lower roller. The lower roller is held in such a way that the position of the lower roller can be adjusted in two degrees of freedom.

Abstract: A method for driving wheels of at least one axle of a vehicle may include dictating a setpoint for a torque to be provided by at least one drive unit for a given operating range, verifying a driving mode in which a better efficiency is achieved for the given operating range, and driving the wheels in the driving mode in which the better efficiency is achieved. The at least one drive unit may be selected from a first drive unit and a second drive unit. The first and second drive units may be associated with the at least one axle. The driving mode may be selected from a first driving mode and a second driving mode. The wheels in the first driving mode may be driven by the first drive unit. The wheels in the second driving mode may be driven by the first and second drive units.

Abstract: Provided is an externally excited synchronous machine (ESM) with reduced torque ripple, a rotor designed for the excited synchronous machine, and a method for production of the rotor.

Abstract: A method for operating an electric machine including a rotor and a stator is connected to a first or a second power electronics assembly (PEA), the first or the second PEA including a circuit arrangement that produces a freewheeling condition or an active short circuit condition for a winding of the rotor or the stator, to a DC voltage network having a battery, and the first or the second PEA including an inverter formed by the circuit arrangement. The method includes, in response to a primary fault signal indicating a fault the first or the second PEA, actuating the first or the second PEA to produce the freewheeling condition, and in response to a secondary fault signal indicating a nonreceptiveness of the battery for power fed by the electric machine to the DC voltage network, actuating both the first and the second PEA to produce the active short circuit condition.

Abstract: A bending machine is described, which comprises an upper roller and a lower roller, as well as at least one side roller. The side roller is held in a rocker arm, wherein the first end of which is fixed to a movable supporting member, and the second end of which can be supported in a first position relative to the upper and lower rollers. The rocker arm can be moved to a second position by means of the movable supporting member and fixed there with the second end.

Abstract: A bending machine is described, which comprises an upper roller and a lower roller, as well as at least one side roller. The side roller is held in a rocker arm, wherein the first end of which is fixed to a movable supporting member, and the second end of which can be supported in a first position relative to the upper and lower rollers. The rocker arm can be moved to a second position by means of the movable supporting member and fixed there with the second end.