-
公开(公告)号：US20210178996A1
公开(公告)日：2021-06-17
申请号：US17117535
申请日：2020-12-10
申请人： UT-Battelle, LLC
IPC分类号： B60R16/023 , G06N20/00 , G07C5/08 , G07C5/00 , G07C5/10
摘要： A system and method for decoding an unknown automotive controller area network (“CAN”) message definitions. CAN data vehicle signal mappings are typically held in secret and varied by automotive model and year. Without knowledge of the mappings, the wealth of real-time vehicle data hidden in the automotive CAN packets is uninterpretable—impeding research, after-market tuning, efficiency and performance monitoring, fault diagnosis, and privacy-related technologies. This technology can ascertain the CAN signals' boundaries (start bit and length), endianness (byte ordering), signedness (binary-to-integer encoding) from raw CAN data. This allows conversion of CAN data to time series. Interpreting the translated CAN data's physical meaning and finding a linear mapping to standard units (e.g., knowing the signal is speed and scaling values to represent units of miles per hour) can be achieved for many signals by leveraging diagnostic standards to obtain real-time measurements of in-vehicle systems. The system and method can be integrated into lightweight hardware enabling an OBD-II plugin for real-time in-vehicle CAN decoding or run on standard computers. The system can output a standard DBC file with the signal definition information.
-
公开(公告)号：US20240025359A1
公开(公告)日：2024-01-25
申请号：US18372966
申请日：2023-09-26
申请人： UT-Battelle, LLC
IPC分类号： B60R16/023 , G06N20/00 , G07C5/10 , G07C5/00 , G07C5/08
CPC分类号： B60R16/0232 , G06N20/00 , G07C5/10 , G07C5/008 , G07C5/0808
摘要： A system for decoding an unknown automotive controller area network (“CAN”) message definitions. CAN data vehicle signal mappings are typically held in secret and varied by automotive model and year. Without knowledge of the mappings, the wealth of real-time vehicle data hidden in the automotive CAN packets is uninterpretable—impeding research, after-market tuning, efficiency and performance monitoring, fault diagnosis, and privacy-related technologies. This system can ascertain the CAN signals' boundaries (start bit and length), endianness (byte ordering), signedness (binary-to-integer encoding) from raw CAN data. This allows conversion of CAN data to time series. Interpreting the translated CAN data's physical meaning and finding a linear mapping to standard units (e.g., knowing the signal is speed and scaling values to represent units of miles per hour) can be achieved for many signals by leveraging diagnostic standards to obtain real-time measurements of in-vehicle systems. The system can be integrated into lightweight hardware enabling an OBD-II plugin for real-time in-vehicle CAN decoding or run on standard computers. The system can output a standard DBC file with the signal definition information.
-
公开(公告)号：US12065088B2
公开(公告)日：2024-08-20
申请号：US18372966
申请日：2023-09-26
申请人： UT-Battelle, LLC
IPC分类号： B60R16/023 , G06N20/00 , G07C5/00 , G07C5/08 , G07C5/10
CPC分类号： B60R16/0232 , G06N20/00 , G07C5/008 , G07C5/0808 , G07C5/10
摘要： A system for decoding an unknown automotive controller area network (“CAN”) message definitions. CAN data vehicle signal mappings are typically held in secret and varied by automotive model and year. Without knowledge of the mappings, the wealth of real-time vehicle data hidden in the automotive CAN packets is uninterpretable—impeding research, after-market tuning, efficiency and performance monitoring, fault diagnosis, and privacy-related technologies. This system can ascertain the CAN signals' boundaries (start bit and length), endianness (byte ordering), signedness (binary-to-integer encoding) from raw CAN data. This allows conversion of CAN data to time series. Interpreting the translated CAN data's physical meaning and finding a linear mapping to standard units (e.g., knowing the signal is speed and scaling values to represent units of miles per hour) can be achieved for many signals by leveraging diagnostic standards to obtain real-time measurements of in-vehicle systems. The system can be integrated into lightweight hardware enabling an OBD-II plugin for real-time in-vehicle CAN decoding or run on standard computers. The system can output a standard DBC file with the signal definition information.
-
4.发明申请公开(公告)号：US20220374515A1
公开(公告)日：2022-11-24
申请号：US17725774
申请日：2022-04-21
申请人： UT-Battelle, LLC
发明人： Robert A. Bridges , Kiren E. Verma , Michael Iannacone , Samuel C. Hollifield , Pablo Moriano , Jordan Sosnowski
摘要： A system and method for intrusion detection on automotive controller area networks. The system and method can detect various CAN attacks, such as attacks that cause unintended acceleration, deactivation of vehicle's brakes, or steering the vehicle. The system and method detects changes in nuanced correlations of CAN timeseries signals and how they cluster together. The system reverse engineers CAN signals and detect masquerade attacks by analyzing timeseries extracted from raw CAN frames. Specifically, anomalies in the CAN data can be detected by computing timeseries clustering similarity using hierarchical clustering on the vehicle's CAN signals and comparing the clustering similarity across CAN captures with and without attacks.
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)
