Abstract: A vector control method for a synchronous machine, in particular a permanent magnet synchronous machine is provided. Q-axis and D-axis target currents are determined by respective allocations which link a target torque and a target flow rate to the Q-axis target current and the D-axis target current, respectively, without taking into consideration a voltage variation of a voltage to be applied to stator windings of the synchronous machine. The voltage variation is adjusted or compensated for beforehand by adapting the target flow rate. A control unit which is designed and programmed to carry out the vector control method is also provided.

Abstract: A method is provided for producing a steel component assembly, wherein a steel component having a predetermined breaking point is provided and the predetermined breaking point of the steel component is punched through by way of a press-fit element in order to form an opening. Subsequently, the press-fit element is pressed into the opening of the steel component, and, at least in overlap with the press-fit element, a component is adhesively bonded to the steel component by an adhesive applied over an area. A friction-drilling hole is melted through the press-fit element, the steel component and the component by way of a friction-drilling element.

Abstract: A method is provided for producing a steel component assembly, wherein a steel component having a predetermined breaking point is provided and the predetermined breaking point of the steel component is punched through by way of a press-fit element in order to form an opening. Subsequently, the press-fit element is pressed into the opening of the steel component, and, at least in overlap with the press-fit element, a component is adhesively bonded to the steel component by an adhesive applied over an area. A friction-drilling hole is melted through the press-fit element, the steel component and the component by way of a friction-drilling element.