Battery knowledge · Charging infrastructure
DIN 70121
The German specification for the digital communication between an electric vehicle and a DC charger in the Combined Charging System, the forerunner of ISO 15118. Most DC chargers in Europe still speak it, so vehicles support both.
- Also called
- DIN SPEC 70121
Example
Charging infrastructure: an example situation
A 100 kW model request does not establish real voltage, current, connector or negotiation compatibility.
Read DIN 70121 alongside Charging control unit in this context. The vehicle-side controller that manages charging: it detects the plug, talks to the charging station over the control pilot or ISO 15118 and DIN 70121, and passes the current and voltage limits the BMS allows. In some bus and truck architectures CCU also names a central or cluster control unit, so the system diagram decides.
Use in Lemonergy
Separate compatibility from requested average power.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- Electric Vehicle Charging Stations
U.S. Department of Energy, Alternative Fuels Data Center
Topic background · U.S. charging equipment levels, charging infrastructure and connector context. Regional terminology varies.