Monitor system for detecting defeat devices in engine control units
AssigneeNXP B.V.
InventorJan-Peter Schat
Life of this patent
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Abstract
A method for detecting defeat devices in an engine control unit (ECU) includes storing with a key-data collection unit, a first key-data determined during an environmental test of a vehicle. The key-data collection unit stores a second key-data determined before the environmental test. Wherein, one of the first key-data is determined by the ECU modified by a characteristic only present before the environmental test and the second key-data is determined by the ECU modified by a characteristic only present during the environmental test. An environmental testing device compares the first key-data with the second key-data to detect an anomaly, wherein the anomaly indicates the presence of the defeat device in the ECU.
Claims20
A method for detecting defeat devices in an engine control unit (ECU) comprising:
- storing, with a key-data collection unit, a key-data determined during an environmental test of a first vehicle;
- storing, with the key-data collection unit, an ECU data determined during the environmental test by the ECU modified by a characteristic, the characteristic only present before a previous environmental test of a second vehicle, wherein the first vehicle and the second vehicle are a same type of vehicle;
- and
- comparing, with an environmental testing device, the key-data with the ECU data to detect an anomaly, wherein the anomaly indicates the presence of the defeat device in the ECU.
A method for detecting defeat devices in an engine control unit (ECU) comprising:
- storing with a key-data collection unit, a second key-data determined before an environmental test of a vehicle;
- storing with the key-data collection unit, a emulated first key-data determined before the environmental test by the ECU modified by a characteristic only present during the environmental test;
- and
- comparing, with an environmental testing device, the emulated first key-data to the second key data to detect an anomaly, wherein the anomaly indicates the presence of the defeat device in the ECU.
A method for detecting defeat devices in an engine control unit (ECU) comprising:
- storing with a key-data collection unit, a first key-data determined during an environmental test of a vehicle;
- storing with the key-data collection unit, a second key-data determined before the environmental test;
- wherein one of the first key-data is determined by the ECU modified by a characteristic only present before the environmental test and the second key-data is determined by the ECU modified by a characteristic only present during the environmental test;
- and
- comparing, with an environmental testing device, the first key-data with the second key-data to detect an anomaly, wherein the anomaly indicates the presence of the defeat device in the ECU.
Dependencies are inferred from the claim text.