Who's doing the redesign for this board for the new charging unit? Josh Rong
The charger interface board is used to communicate with our battery charger and with the Electric Vehicle Supply Equipment (EVSE) charger using the SAE J1772 standard (https://en.wikipedia.org/wiki/SAE_J1772). The EVSE requires signals on the control pilot and proximity detection (circuits completed through the protective earth signal) pins to enable its AC output. The Elcon charger requires communication over its CAN bus to enable the output and set the output voltage and current. A CAN message is required every 1s.
EVSE Details
https://en.wikipedia.org/wiki/SAE_J1772
Charger Details
Charger we are using is elcon 3.3kw (HK-J-H198-23 provides 50-198VDC output)
https://www.elconchargers.com/catalog/item/9034090/10295140.htm
Documentation we have received from Elcon is found below: