Patent ID: 6449545
Filing Date: 2002-09-10
Classification: B60R

Abstract:
A method of data transmission in a restraint system network over a bus line for occupants of a vehicle, comprising the steps of:coupling a central control unit and a plurality of data processing units to the bus line; providing, at various locations in the vehicle, the central control unit and the plurality of data processing units to control restraint devices; sending, from the central control unit, at least one of query signals and control signals to at least one of particular data processing units and all data processing units; sending, from the data processing units, response signals to the central control unit in response to at least one of particular query signals and particular control signals, the response signals and the at least one of the query signals and the control signals being data telegrams, the data telegrams having the same frame structure including a first region with n control bits, a second region with m information bits and third region with p check bits; entering, by the central control unit, a deployment command into the second region with the m information bits of the data telegram in which each of the data processing units is allocated at least one bit location; and activating the restraint devices assigned to a particular data processing unit only when the at least one allocated bit location for the particular data processing unit has been set.