A device for controlling the various functions in a motor vehicle, comprising a control member is fixed with respect to the steering wheel.

摘要

The control device generates signal functions (1,2) with individual voltage signals using an ASIC generator (14,15). The signals are passed to a microprocessor (13). A processing stage (GP) takes the signals and applies a protocol, so that they can be passed across a two wire interface (10,11) to the command unit (7). The command voltages are generated by resistance variations.