System of control devices in a motor vehicle with protected...

Details System of control devices in a motor vehicle with protected... System of control devices in a motor vehicle with protected...

2009-02-27

2010-11-23

Nguyen, Kim T (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

Reexamination Certificate

active

07840321

ABSTRACT:
A system of control devices communicate by way of one or more databuses of a motor vehicle. The system exhibits at least two diagnostics access points, by way of which the state of at least one of the control devices is diagnose˜ on the basis of a diagnostics request message; in particular, an error memory entry of a control device is requested by way of one of the diagnostics access points and is transmitted to the outside. A diagnostics request message, which is fed to the system by way of the first diagnostics access point, is recognized as such by an identification and forwarding system and is transmitted to a checking system. The checking system checks at least the authenticity of the diagnostics request messages and, optionally, forwards it to that control device, for which the diagnostics request message is intended.

REFERENCES:
patent: 6647323 (2003-11-01), Robinson et al.
patent: 7350159 (2008-03-01), Cencilla et al.
patent: 2004/0073791 (2004-04-01), Vollmer et al.
patent: WO 02/23801 (2002-03-01), None
International Search Report dated Jan. 2, 2008 w/English translation (four (4) pages).

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