Explore the technical intricacies of Tesla's power upgrades in this 40-minute RSA Conference talk. Delve into the process of adding Ludicrous speed to a Model S, examining the security model and architecture of Tesla vehicles. Gain insights into the Battery Management System (BMS), firmware updates, and the Universal Diagnostic Services (UDS) routines involved in the upgrade process. Learn about potential security measures manufacturers can implement to safeguard against unauthorized third-party modifications. Discover the challenges and safety considerations in high-voltage vehicle modifications, and understand the implications for automotive cybersecurity.
The UDS Security Model of the Tesla CAN Bus and Battery Management System
Overview
Syllabus
RSAConference2021
Tesla Security History
Tesla Model S/X Architecture Overview
Tesla Security Gateway
BMS Overview
BMS Components
Ludicrous Announcement
Ludicrous Upgrade Window Closed
Adding Ludicrous Speed to a Dual Motor AWD Tesla
High Voltage Surgery
Safety First
Tesla firmware updates
Gateway files
Different BMS board, earlier revision
What about the bootloader?
IDA Disassembly
CAN Decoding
BMS Power Curve
ODX - Open Diagnostic eXchange
UDS Routines Enumerated
UDS Routines For Ludicrous Upgrade
UDS Recommendations
Process Changes
References
Taught by
RSA Conference
