Electrical Steering Column Adjustment : Service Function 'Normalization'

Electrical Steering Column Adjustment: Service Function 'Normalization'

Brief description
The steering column has two adjusting motors for independent adjustment of the two axes. The normalization of the system is necessary so that absolute values of the steering column position can be output. The position is in the slot by the sensors fitted in the motors. As this does not record an absolute position, learning a reference position, the so-called "normalization" is necessary.

In principle, the steering column adjustment is also operative without normalization.

The complete normalization measures the entire system and saves the data in the position memories. Subsequently, only the zero point can shift, not the entire length or inclination. For these reasons, normalization has been split into full normalization and partial normalization. It is adequate to run the complete normalization once. Usually, the length and inclination of the adjusting path no longer change. However, the zero point can still shift. To balance this out, partial normalization is used.

Complete normalization
In the complete normalization, the steering column is moved to all limit positions. This measures and stores the entire range of movement.

The complete normalization of the system can be called up using the service function 'Normalization'.

Partial normalization
As only the zero point of the system can shift due to the way the system is designed, partial normalization is run at regular intervals. This moves the range back to the correct operating range. If the absolute zero point is not known, on the next movement to the entry position each axis is moved to the mechanical limit position of each reference point at the front and/or top.

The partial normalization of the system can be called up using the service function 'Partial normalization'