PROTECT INFORMATION STORED IN ECU FROM UNINTENTIONAL WRITING AND OVERWRITING
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Feb 8, 2012
filing date -
Feb 8, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Systems and methods that facilitate protecting vehicle impact event data from overwrite include an electronic control unit (ECU) having a processor that records event data related to vehicle operation, a memory that stores the event data, and an electronic tool that communicates with the ECU and comprises a data locking module that sends a data lock signal to the ECU to lock the stored event data as locked data such that the stored event data cannot be overwritten. The ECU, in response to the data lock signal, stores the event data as locked data in a dedicated portion of the memory to preserve the event data for subsequent review.
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