Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Reexamination Certificate
1999-09-24
2001-03-27
Cuchlinski, Jr., William A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
C701S029000, C701S033000, C073S116070
Reexamination Certificate
active
06208919
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates generally to vehicle data acquisition systems, and more particularly, to vehicle data acquisition systems for acquiring information relating to vehicle operation characteristics.
BACKGROUND AND SUMMARY OF THE INVENTION
Presently, the automotive industry utilizes data acquisition and analysis in order to optimize vehicle performance. Conventional vehicle data acquisition and analysis employ stripchart recorders, such as, the Visicorder and Astromed stripchart recorders (which systems are respectively available from Honeywell® and Astromed®).
However, strip recorders typically do not have the capability to efficiently and easily produce and store data signals. Moreover, these approaches typically only include a limited number of channels (i.e., independent variables) which can be recorded. They also experience a limited ability for comparison on a graph multiple channels which have the same or different unit types and experience the inability to use computer analysis methods such as FFT (fast Fourier transform), and statistical analysis as well as being limited with respect to channel analysis. The inability to simultaneously acquire and analyze both digital and analog data having different sampling rates results in more processing steps and thus higher cost.
The present invention overcomes the aforementioned disadvantages as well as other disadvantages. In accordance with the teachings of the present invention, a component based in-vehicle data acquisition and analysis method and apparatus is provided for assisting users (such as calibrators) to examine their tuned engine parameters. The data acquisition unit provides different modes of acquisitions such as triggering data when an event happens and gathering data for a fixed buffer either one time or continuously. The present invention has a particular use for acquiring digital and analog data with different sampling rates. The acquisition of input data signals are done simultaneously by synchronizing digital and analog input data signals via a Real Time System Integration bus. The data processing unit is provided for calculating and analyzing the acquired data, and displaying the result for the users.
Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood however that the detailed description and specific examples, while indicating preferred embodiments of the invention, are intended for purposes of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
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Barkesseh Nasser M.
Perzanowski William J.
Cuchlinski Jr. William A.
DaimlerChrysler Corporation
Donnelly Arthur D.
Lorelli Marc
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