CCS Proximity Pilot vs GB/T Charging Confirmation

[sstanleyau]

I'm trying to find information about the Charging Confirmation signal on GB/T connections, and how it differs from Proximity Pilot used in CCS and CCS2. I'm not having much luck, other than references to a 30v signal. Any clues, or suggestions on where to look?

[uhi22]

You could try whether the indian fast charge standard also includes this. It is referenced here:
https://github.com/uhi22/pyPLC?tab=read ... references as number xi. Seems to contain Chademo (Annex A, System A), an other "System B" in annex B, and CCS as "System C" in Annex C. Maybe the "System B" is what you are searching for.

Edit: Seems to match. The annex B mentions " configuration BB as specified in IEC 62196-3." and on wikipedia https://en.wikipedia.org/wiki/IEC_62196#BB the "GB/T 20234.3" is mentioned.

[sstanleyau]

Thanks. It appears the GB/T DC interface uses two CC lines, one for the car and one for the charger.

[elsamuse]

Thanks. It appears the GB/T DC interface uses two CC lines, one for the car and one for the charger.

1. In GB/T 27930 (DC), the CC signal is used:
6V indicates the plug is disconnected.
4V indicates the plug is connected.

2. In GB/T 18487 (AC), the PP or CP signal is used:
PP is for detecting plug presence.
CP is for detecting plug status.
For the CP signal:
12V indicates the plug is disconnected.
9V indicates the plug is connected.
6V indicates charging is in progress.