Lin Control Pilot Parser

• Colden Rother, Electrical Engineering, University of Delaware

• Rodney McGee, Electrical and Computer Engineering, University of Delaware
• Garret Ejzak, College of Earth Ocean and Enviroment, University of Delaware

Although Electric Vehicles(EVs) are a growing industry, there still isn’t a unanimous consensus on the communication protocol to be used between the charger(SE) and the Electric Vehicle(EV). The Society of Automotive Engineers(SAE) has recently institutionalized a new standardized way for automakers to transmit and receive communications between the charger(SE) and electric vehicle(EV) via Local Interconnected Network protocol(LIN). This is defined in the SAE J3068 series. However, even though this solves the problem of a communication protocol, this still doesn’t allow an academic/technician to observe in real time the data being transmitted between the EV and SE. The data being transmitted is critical to interpret what the sensors of the SE and EV are reading during the charging process, as well as confirming test results for EV and SE experiments. Here we show that it is possible to read the communications between the EV and SE by hooking up to the Control Pilot line within the charger(SE) with a Printed Circuit Board(PCB) that can read that data into your serial port(USB). This can then be interpreted by a coded parser to interpret the data in real time. We developed a PCB that accomplishes this by allowing binary communication to be read directly from the Control Pilot line into a computer’s USB serial port. The binary data is then read into a Python coded parser, which allows academics/technicians to see critical alerts, and communication protocols between the EV and SE defined in the SAE J3068 documents. This suggests that the developed tools can not only tell the user signs of critical error, and ability to see an EV and SE charger data in real time, but also be able to save this data via a .txt file to be sent to another academic across the world to be interpreted on their end.