Comemso Migrates ISO 15118 Charging Station Test Libraries to Comframe Platform
The port includes conformance tests for AC and DC stations, validated against CharIN standards and previous implementations.
German test-equipment manufacturer comemso has ported its ISO 15118-4 and ISO 15118-5 test libraries to its proprietary software platform, comframe. This migration allows developers to configure, run, and evaluate standardized communication tests for both AC and DC charging stations directly within the comframe environment.
What Happened
The ISO 15118 series governs digital communication between electric vehicles and charging stations, with Parts 4 and 5 specifying conformance tests for the network/application protocol layers and the physical/data link layers, respectively. Comemso moved these libraries from a previous software platform to comframe, maintaining its in-house development approach. The new implementation builds on a version previously validated by the Charging Interface Initiative (CharIN), an international association focused on EV-charging station interoperability. To verify the port, comemso conducted repeated tests on two charging stations—using both the new comframe platform and the legacy system—and compared the results. One of the stations tested was the same unit used for the original CharIN validation. Additionally, every test case was checked against comframe's charging station simulation, which involved feeding in both correct and faulty communication sequences to ensure accurate PASS and FAIL detection.
Why It Matters
This update centralizes the testing workflow for charging infrastructure developers. By integrating test selection, execution, and evaluation into a single software environment, comframe simplifies the process of ensuring compliance with ISO 15118 standards. The platform controls comemso's EVCA (EV Charging Analyzer/Simulator) family, which can simulate vehicle or station roles to verify communication rules. The system utilizes Protocol Implementation Conformance Statement (PICS) and Protocol Implementation Extra Information for Testing (PIXIT) data to tailor tests to specific station capabilities. Furthermore, the ability to generate separate reports for each test case supports documentation requirements and facilitates repeat testing after software updates, which is critical for maintaining interoperability in a rapidly evolving charging standard landscape. Existing EVCA systems are eligible for upgrades to include comframe and the corresponding libraries.
The Bottom Line
Comemso has successfully migrated its ISO 15118 conformance testing tools to the comframe platform, offering a unified environment for validating AC and DC charging station communications. The company confirmed the accuracy of the port through comparative testing and simulation checks, while additional test libraries are planned for future release.
