The electrical motor is one of the main elements of the steering system; its task is to assist the driver in steering by providing the appropriate torque. To achieve this torque, and due to the small space in the motor- or passenger compartment, the motors should be of compact enclosures and should achieve the highest possible power density. The motors used and developed in power-assisted steering systems are permanent magnet synchronous servo motors (using rare-earth magnets) for reasons of high performance requirement and maintenance-free operation.

Since the motor is in direct mechanical contact with the steering wheel, its properties – such as cogging torque and torque ripple – directly affect the steering feel and the comfort as well. Our aim is to provide smooth, continuous steering- and comfort feel by minimization of these parameters.

The development work is done with the help of modern tools, finite element computer programs, keeping in mind the increase of operational reliability, and in close cooperation of the designer – developer teams and the suppliers for the functionally connected parts of the steering system.

With the appearance of the first prototypes begins the testing of motors on precision test equipments, based upon the specifications and testing requirements, which process is closed by the validation- and life cycle tests.

The primary task of the sensor development team is to define the functional (measuring range, resolution, linearity, etc.) and electronic interface parameters of the sensors in the system based upon the requirements list specified by the system engineers, and in cooperation with the suppliers shall monitor the development of component parts. In this context, their task is to define, perform and evaluate the various functional, environmental and electrical measurements. In addition, their task is the development and implementation of the calibration process of sensors, and the support of prototype- and mass production in related issues.