| US 7,500,151 B2 | ||
| Data logging in a motor vehicle | ||
| Sascha Englert, Ascheberg (Germany); Ottmar Gehring, Kernen (Germany); Carsten Hämmerling, Ehningen (Germany); Harro Heilman, Ostfildern (Germany); Andreas Schwarzhaupt, Landau (Germany); Gernot Spiegelberg, Heimsheim (Germany); and Armin Sulzman, Oftersheim (Germany) | ||
| Assigned to Daimler AG, Stuttgart (Germany) | ||
| Appl. No. 10/583,603 PCT Filed Nov. 19, 2004, PCT No. PCT/EP2004/013151 § 371(c)(1), (2), (4) Date Nov. 28, 2006, PCT Pub. No. WO2005/064546, PCT Pub. Date Jul. 14, 2005. |
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| Claims priority of application No. 103 60 125 (DE), filed on Dec. 20, 2003. | ||
| Prior Publication US 2007/0174684 A1, Jul. 26, 2007 | ||
| Int. Cl. G06F 11/00 (2006.01) | ||
| U.S. Cl. 714—45 [701/35] | 11 Claims |
| 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.
|