Engine emissions analyzer
First Claim
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1. An automotive vehicle emissions indicating method in which a predetermined model defines a relationship between a predetermined set of engine events and levels of a predetermined set of engine emissions elements, comprising the steps of:
- periodically determining an occurrence of any of the predetermined set of engine events;
accumulating the determined occurrences over a predetermined test period;
estimating levels of each of the predetermined set of engine emissions elements by applying the accumulated determined occurrences to the predetermined model; and
indicating the estimated levels.
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Abstract
Internal combustion engine emissions information is generated by monitoring engine events that significantly impact engine emissions and by applying the monitored events to a model of the emissions impact of such events. The monitored events and the emissions impact derived from the model are made visible to the engine operator in a real-time format, and further may be made available to a third party for analysis.
45 Citations
18 Claims
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1. An automotive vehicle emissions indicating method in which a predetermined model defines a relationship between a predetermined set of engine events and levels of a predetermined set of engine emissions elements, comprising the steps of:
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periodically determining an occurrence of any of the predetermined set of engine events; accumulating the determined occurrences over a predetermined test period; estimating levels of each of the predetermined set of engine emissions elements by applying the accumulated determined occurrences to the predetermined model; and indicating the estimated levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of indicating emissions levels of an automotive vehicle internal combustion engine, comprising the steps of:
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defining a set of engine events the occurrence of which significantly impact engine emission levels; providing a predetermined set of functions, each of which maps occurrences of a corresponding one of the defined set to engine emissions levels; periodically detecting occurrence of any of the defined set of engine events over a test period; generating engine emission levels by applying the detected occurrences to the provided predetermined set of functions; and indicating the generated engine emissions levels. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification