Enhanced vehicle onboard diagnostic system and method
First Claim
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1. A method for providing vehicle system diagnostic data to a vehicle user, the method comprising:
- monitoring a characteristic of a plurality of onboard mechanical vehicle systems defining a plurality of diagnostic data, the plurality of onboard mechanical vehicle systems characteristics including at least one of an air/fuel sensor operation, an oxygen sensor operation, variable valve time operation, an evaporative system operation, and an exhaust gas recirculation system operation, each onboard mechanical vehicle system having a useful life subject to deterioration before replacement or maintenance;
recording time having a starting time and an ending time defining a time period;
assigning at least a portion of the time period to at least one of the diagnostic data defining a time performance data;
selectively displaying diagnostic data to a user through a user visual display;
selectively displaying time performance data on the user visual display including;
determining, by a processor receiving the diagnostic data, a system performance of one of the onboard mechanical vehicle systems by calculating a present useful remaining life of each one of the onboard mechanical vehicle systems by comparing diagnostic data for the monitored characteristic from a present time in the time period versus diagnostic data for the monitored characteristic from a time in the time period prior to the present time and determining an amount of deterioration in the monitored characteristic; and
displaying a visual graphic depicting a listing of the calculated present remaining useful life of each one of the plurality of onboard mechanical vehicle systems including displaying a range of useful life having a first point and a second point on a linear graph, the present useful life positioned between the first and the second points visualizing both the amount of deterioration and the remaining useful life of each one of the onboard mechanical vehicle systems.
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Abstract
The invention includes methods and devices for an improved onboard vehicle diagnostic system. The methods and devices provide for more detailed information and presentation of diagnostic and vehicle performance data for a user. In one example, real time diagnostic and trip system performance data is gathered and displayed relative to time for improved understanding of vehicle performance and operation by a user.
45 Citations
6 Claims
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1. A method for providing vehicle system diagnostic data to a vehicle user, the method comprising:
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monitoring a characteristic of a plurality of onboard mechanical vehicle systems defining a plurality of diagnostic data, the plurality of onboard mechanical vehicle systems characteristics including at least one of an air/fuel sensor operation, an oxygen sensor operation, variable valve time operation, an evaporative system operation, and an exhaust gas recirculation system operation, each onboard mechanical vehicle system having a useful life subject to deterioration before replacement or maintenance; recording time having a starting time and an ending time defining a time period; assigning at least a portion of the time period to at least one of the diagnostic data defining a time performance data; selectively displaying diagnostic data to a user through a user visual display; selectively displaying time performance data on the user visual display including; determining, by a processor receiving the diagnostic data, a system performance of one of the onboard mechanical vehicle systems by calculating a present useful remaining life of each one of the onboard mechanical vehicle systems by comparing diagnostic data for the monitored characteristic from a present time in the time period versus diagnostic data for the monitored characteristic from a time in the time period prior to the present time and determining an amount of deterioration in the monitored characteristic; and displaying a visual graphic depicting a listing of the calculated present remaining useful life of each one of the plurality of onboard mechanical vehicle systems including displaying a range of useful life having a first point and a second point on a linear graph, the present useful life positioned between the first and the second points visualizing both the amount of deterioration and the remaining useful life of each one of the onboard mechanical vehicle systems. - View Dependent Claims (2)
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3. A method for providing vehicle system diagnostic data to a vehicle user, the method comprising:
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monitoring a characteristic of a plurality of onboard mechanical vehicle systems defining a plurality of diagnostic data, the plurality of onboard mechanical vehicle systems characteristics including at least one of an air/fuel sensor operation, an oxygen sensor operation, variable valve time operation, an evaporative system operation, and an exhaust gas recirculation system operation, each onboard mechanical vehicle system having a useful life subject to deterioration before replacement or maintenance; recording time having a starting time and an ending time defining a time period; assigning at least a portion of the time period to at least one of the diagnostic data defining a time performance data; selectively displaying time performance data on a user visual display by; determining, by a processor receiving the diagnostic data, a trip system performance of each of the plurality of onboard vehicle systems by calculating the diagnostic data for a vehicle system for a predetermined portion of the time period; and displaying a visual graphic, including a linear graph, to the user visual display depicting the calculated diagnostic data for each of the plurality of onboard mechanical vehicle systems. - View Dependent Claims (4, 5, 6)
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Specification