PROTECT INFORMATION STORED IN ECU FROM UNINTENTIONAL WRITING AND OVERWRITING
First Claim
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1. A system that facilitates protecting vehicle event data from overwrite, comprising:
- 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;
wherein 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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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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Citations
24 Claims
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1. A system that facilitates protecting vehicle event data from overwrite, comprising:
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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; wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electronic control unit (ECU) that facilitates protecting vehicle event data from overwrite, comprising:
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a processor that records event data related to vehicle operation; a memory that stores the event data; and wherein the ECU, in response to an authorized data lock signal received from an electronic tool, stores the event data as locked data in a dedicated portion of the memory that cannot be overwritten to preserve the event data for subsequent review. - View Dependent Claims (9, 10, 11, 12)
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13. A electronic tool that facilitates protecting vehicle event data from overwrite, comprising:
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a processor that communicates with an electronic control unit in a vehicle, wherein the ECU stores event data related to vehicle operating conditions; a data locking module that sends a data lock signal to the ECU to lock stored event data as locked data such that the stored event data cannot be overwritten; and a data unlocking module that sends a data unlock signal to the ECU to unlock the locked event data for analysis; and an authorization module that verifies user-entered authorization information prior to sending one of the data lock signal and the data unlock signal to the ECU. - View Dependent Claims (14, 15, 16, 17)
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18. A method of protecting vehicle event data from overwrite, comprising:
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recording, in an electronic control unit, event data related to vehicle operation; receiving an authorized data lock signal from an electronic tool; and in response to the authorized data lock signal, storing the event data as locked data in a dedicated portion of a vehicle ECU memory that cannot be overwritten, in order to preserve the event data for subsequent review. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An apparatus for protecting vehicle event data from overwrite, comprising:
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recording means, in a data storage device, for recording event data related to vehicle operation; receiving means for receiving an authorized data lock signal from an electronic tool; and storing means for storing, in response to the authorized data lock signal, the event data as locked data in a dedicated portion of a the data storage device memory that cannot be overwritten, in order to preserve the event data for subsequent review.
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Specification