Testing

The TI2 has been thoroughly tested and pushed to the breaking point. In every case, it ends in a safe state. The TI2 can safely operate in a temperature range of (-40) - 80°C indefinitely. The components on the PCB are rated to at least 125°C but the connectors are only rated to 80°C. The TI2 consistently fails to operate at sustained temperatures above 160°C due to the power supplies shutting down. Temperatures below -40°C may cause the peripherals may fail. Testing was completed with dry ice, cold spray, heat gun, and soldering iron.

ESD testing has been done with a readily available 30KV generator module. Activating the module near the TI2 will cause the MCUs to reset which causes power steering failure.

Memory fault injection tests in RAM cause the EPS to detect a failure and flash memory fault injection tests cause the targeted MCU to reset.

Every line of code has been forced to execute by adding conditional statements triggered by CAN Bus commands to simulate conditions in situ.

Forcing the sensors to offset differently from each other is detected by EPS before it has any effect on the steering wheel. When offsetting only one sensor, the EPS will ignore that differential pair until reset. When offsetting 2 sensors the EPS is disabled until reset.