CAN FD performance analysis for ECU re-programming using the CANoe

This paper presents performance analysis of Controller Area Network with Flexible Data-Rate (CAN FD), a new automotive communication protocol that was officially proposed by Robert Bosch GmbH in March 2012, with consideration of the size of data field of the CAN FD message. Using the CANoe simulation tool by Vector GmbH, we measured the performance of CAN FD for ECU (Electronic Control Unit) re-programming, and compare it to that of CAN. The experimental result showed that when flashing large amounts of data to ECUs, CAN FD has significantly better performance than CAN. In addition, for identical amounts of data, the longer the size of the data field, the shorter the software download time.