Patent ID: 7500151
Filing Date: 2009-03-03
Classification: G07C,H04L

Abstract:
1. A method of reading messages which are sent over a data bus in a motor vehicle between electronic units, comprising: providing at least one communications network based on at least one data bus to which several electronic units are connected by a bus interface, connecting the communications network with an external data processing unit by at least one data interface, storing of messages which were sent in the communications network in at least one cyclically overwritable, volatile storing means, examining the messages stored in the volatile storing means for selected, parameterizable attributes with at least one monitoring unit having an executable program, upon the occurrence of at least one definable trigger event, whose occurrence is monitored by the executable program, stopping the cyclical overwriting of the volatile storing means for at least as long until the data content of the volatile storing means is transferred to a second, non-volatile storing means.