Three independent digital sensor signals transmitting method for electromechanical steering system of motorvehicle, involves transferring two sensor signals in signal line during failure of another signal line to execute emergency operation

摘要

The method involves digitizing and/or processing sensor signals (Sa-Sc) of three independent sensors (A-C) by a controller (2). Three digital sensor signals are divided into two data channels (DK1, DK2) in two signal lines (3, 4) by the controller. One of the digital sensor signals is transferred in one of the signal lines (3) and the other two digital sensor signals are transferred in the other signal line (4) in a normal condition. The latter two digital sensor signals are transferred in one of the signal lines during failure of the other signal line to execute an emergency operation. An independent claim is also included for a device for transmitting three independent digital sensor signals via two signal lines for executing a function.