Multi-application data display
First Claim
1. A device for acquiring and displaying motor vehicle data, comprising:
- a scan interface component permitting communication between said device and a motor vehicle onboard diagnostic (OBD) computer;
a first external test instrument interface component permitting communication between said device and an external test instrument, which is linked to a subsystem of a motor vehicle;
a display in communication with said scan interface and said first external test instrument interface component, said display simultaneously or individually displaying data from said scan interface and from said external test instrument; and
a subsystem of said device able to alter graphical display representation of data collected from said vehicle OBD computer in response to data properties of event time of occurrence, external test instrument data item acquisition rate, and amplitude, for the purpose of permitting comparison between said data despite disparities in properties.
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Accused Products
Abstract
A data display firmware improvement for a scan tool adds the capability to view in a single presentation data uploaded from a motor vehicle'"'"'s onboard diagnostic (OBD) computer synchronized with data from external test apparatus. The data display algorithms permit viewing of OBD data, including certain real-time oscilloscope-like waveforms, and allow viewing test results from compatible instruments, such as exhaust gas analyzers, including capturing realtime OBD signals, holding them until delayed events such as gas analyzer test results become available, then displaying the events on a common display as though available simultaneously in real time. The firmware upgrade is downloadable to existing products.
30 Citations
19 Claims
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1. A device for acquiring and displaying motor vehicle data, comprising:
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a scan interface component permitting communication between said device and a motor vehicle onboard diagnostic (OBD) computer;
a first external test instrument interface component permitting communication between said device and an external test instrument, which is linked to a subsystem of a motor vehicle;
a display in communication with said scan interface and said first external test instrument interface component, said display simultaneously or individually displaying data from said scan interface and from said external test instrument; and
a subsystem of said device able to alter graphical display representation of data collected from said vehicle OBD computer in response to data properties of event time of occurrence, external test instrument data item acquisition rate, and amplitude, for the purpose of permitting comparison between said data despite disparities in properties. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device for acquiring and displaying motor vehicle data, comprising:
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a scan interface component permitting communication between said device and a motor vehicle onboard diagnostic (OBD) computer;
a first external test instrument interface component permitting communication between said device and an external test instrument, which is linked to a subsystem of a motor vehicle;
a display in communication with said scan interface and said first external test instrument interface component, said display simultaneously or individually displaying data from said scan interface and from said external test instrument; and
a subsystem of said device able to alter graphical display representation of data collected from said external test instrument in response to disparate data properties of event time of occurrence, external test instrument data item acquisition rate, and amplitude, for the purpose of permitting direct data comparison despite disparities in event rate.
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18. A device for acquiring and displaying motor vehicle data, comprising:
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a scan interface component permitting communication between said device and a motor vehicle onboard diagnostic (OBD) computer;
a first external test instrument interface component permitting communication between said device and an external test instrument, which is linked to a subsystem of a motor vehicle;
a display in communication with said scan interface and said first external test instrument interface component, said display simultaneously or individually displaying data from said scan interface and from said external test instrument;
a subsystem of said device able to alter graphical display representation of data collected from said external test instrument in response to disparate data properties of event time of occurrence, external test instrument data item acquisition rate, and amplitude, for the purpose of permitting direct data comparison despite disparities in time of occurrence.
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19. A device for acquiring and displaying motor vehicle data, comprising:
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a scan interface component permitting communication between said device and a motor vehicle onboard diagnostic (OBD) computer;
a first external test instrument interface component permitting communication between said device and an external test instrument, which is linked to a subsystem of a motor vehicle;
a display in communication with said scan interface and said first external test instrument interface component, said display simultaneously or individually displaying data from said scan interface and from said external test instrument, a subsystem of said device able to alter graphical display representation of data for the purpose of permitting the horizontal (time) axis of a time-synchronized set of data traces to display in part at a first rate and in part at a second rate.
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Specification