Engine state detection device
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United States of America Patent
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Feb 6, 2018
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app pub date -
Aug 14, 2015
filing date -
Aug 15, 2014
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Abstract
A device for collecting vehicle on-board diagnostics (OBO) data is disclosed, together with an associated method of collecting OBD data in such devices. In embodiments, the OBO data collection device includes a connector for connecting the device to a vehicle OBO port to receive OBO data and power and a processor for controlling collection of the OBO data. The processor is arranged to determine a vehicle engine state by monitoring a voltage at the connector, taken in combination with OBO data relating to vehicle speed and/or engine revolutions. Such devices are able to reliably detect both engine ‘on’ and ‘off’ states in modern vehicles that use “smart charging” technology.
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