Abstract: A device for introducing an auxiliary torque into a steering shaft of an electromechanical power-assisted steering system may include an electric motor that comprises a motor shaft that is coupled fixedly in terms of torque by means of a coupling element to a gearwheel. The gearwheel may mesh with a toothed wheel disposed rotationally conjointly on the steering shaft. To provide an improved coupling between electric motor and gearwheel with relatively low outlay in terms of production and costs, the coupling element may comprise a torsional elastic bar that is torsionally more flexible than the motor shaft and the gearwheel.

Abstract: Systems and methods are provided for enabling communication between a composite system providing additional functionality not contained in existing legacy systems and other existing systems using different commands, variables, protocols, methods, or instructions, when data may be located on more than one system. In an embodiment, multiple software layers are used to independently manage different aspects of an application. A business logic layer may be used in an embodiment to facilitate reading/writing operations on data that may be stored locally and/or on external systems using different commands, variables, protocols, methods, or instructions. A backend abstraction layer may be used in an embodiment in conjunction with the business logic layer to facilitate communication with the external systems. A user interface layer may be used in an embodiment to manage a user interface, a portal layer to manage a user context, and a process logic layer to manage a workflow.