| US 7,555,377 B2 | ||
| Method for collecting data from a motor-driven vehicle | ||
| Johan Larsson, Stenungsund (Sweden); Daniel Johansson, Karna (Sweden); and Bo Hammerlid, Greensboro, N.C. (US) | ||
| Assigned to Volvo Lastvagnar AB, Gothenburg (Sweden) | ||
| Filed on Dec. 22, 2004, as Appl. No. 10/905,261. | ||
| Application 10/905261 is a continuation of application No. PCT/SE03/00945, filed on Jun. 06, 2003, abandoned. | ||
| Claims priority of application No. 0201952 (SE), filed on Jun. 24, 2002. | ||
| Prior Publication US 2005/0083599 A1, Apr. 21, 2005 | ||
| Int. Cl. G01M 17/00 (2006.01) | ||
| U.S. Cl. 701—35 [701/29; 701/33; 340/438] | 9 Claims |
| 1. A method for collecting data from a motor-driven vehicle including a microprocessor with memory having a capacity for storing
a particular quantity of data, said method comprising:
ascertaining that prescribed conditions are fulfilled for recording data of interest;
collecting data from a plurality of sensors connected to the vehicle or motor of the vehicle when the prescribed conditions
are fulfilled;
recording prescribed data sets of collected data in the memory as data files, at least one of the data files being stored
as a non-erasable reference data file and a plurality of data files recorded thereafter being stored as erasable data files;
and
analyzing one of said plurality of erasable data files by comparison to said stored, non-erasable reference data file and
thereafter recording over said analyzed erasable data file with a new data file to be compared with said reference data file
and thereby enabling the utilization of a microprocessor having memory capacity for storing a plurality of historical data
files, as well as analyze data in quantities greater than said memory capacity.
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