Skip to main content
comemso
Contact
Product Finder
Applications
Start with the decisionApplications
Vehicle and charging station
EV TestingVehicle, EVCC and charging-release validation.EVSE TestingCharging-station development through field operation.InteroperabilityReal EV and EVSE in one synchronized test record.
Battery, MCS and EMC
BMS TestingCells, sensors, balancing and controlled faults.BMS + EVCC + OBCValidate the interaction of battery, charging controller and on-board charger.MCS TestingCommunication, signals, cooling and megawatt power.EV Charging EMCKeep charging communication observable under EMC stress.
Production, commissioning and calibration
EVSE End-of-LineRepeatable acceptance and unit-level results.Commissioning & Field ServiceCommission, diagnose and verify installed chargers.Calibration & MetrologyTraceable energy verification at the charging point.
Products
Start with the decisionProducts & PlatformsProduct Finder
EVCA
EVCA PlatformCommunication, interoperability, high-power, MCS and EMC paths.EVCA ComOnlyFocused charging communication testing.EVCA Multi MobilePortable laboratory and field analysis.EVCA InteropAnalyse interoperability between a real EV and EVSE.EVCA FlexModular high-power testing and controlled faults.EVCA MCSMegawatt charging communication, low-level signals and system testing.
Easy Chester
Easy Chester PlatformEVSE production, commissioning, service and calibration.Easy Chester MicroAC EVSE installation testerEasy Chester UltimateAC and DC EVSE installation testerEasy Chester CalimeraAC and DC EVSE calibration systemEasy Chester EOL / EOL HPCEVSE end-of-line production tester
Battery, software and EMC
Battery Cell SimulatorBMS testing from compact bench to high-voltage HiL.comframeConfiguration, synchronized analysis and automation.EMC LinkOptical charging communication through the chamber boundary.
Software
Start with the decisionSoftware Capabilities
comframe and integration
comframeThe shared test-intelligence environment.Integration & APIsREST, Python, CI/CD and laboratory orchestration.Protocol & Domain ModulesSelect released domain depth.Capabilities HubConnect the capability model across EV, EVSE and BMS testing.EVCA Capability HubExplore the detailed EV charging capability stack.
Analyse and test
Automated Standards AnalysisMeasured behaviour, normative context and highlighted deviations.Professional SimulationConfigure nominal, boundary and non-conform behaviour.Manipulating GatewayTest a live correction hypothesis between real partners.
Reproduce and automate
Charge PlaybackReproduce the charging partner for the DUT.Charge Cycle AutomationTurn saved configurations into repeatable campaigns.Conformance Test LibrariesVersioned executable standards-based test logic.
Knowledge
Start with the decisionStandards & Knowledge
Standards and test logic
Charging, Safety & EMCCharging behaviour, field safety, editions and test boundaries.Conformance Test LibrariesReleased executable test logic, verdicts and evidence.AFIR for EV ChargingRegulation, responsibility and verifiable evidence.
Methods and terminology
Knowledge CenterTechnical explanations, methods and application guidance.GlossaryStable charging and BMS test terminology.EVSE Calibration MethodsCompare controlled real load and reference measurement.Battery Cell SimulationCells, balancing, faults, precision and BMS HiL.
Documents and tools
Resources LibraryCurrent brochures, webinars, guides and checklists.BMS testing whitepaperTemperature, environment, simulation and test wiring.EVSE Inspection GuidePractical commissioning and inspection workflow.Charger Uptime CalculatorEstimate downtime and field-service impact.Technical newsletterChoose product updates and events relevant to your tests.
Company
Start with the decisionCompany
Company
About comemsoEngineering purpose, history and operating companies.Development & manufacturingShort paths from development to system testingQuality & CertificationsManagement systems, validation and calibration evidence.Customer ProofNamed stories, endorsements and published configurations.SustainabilityEnvironmental management and measured progress.
People and network
Customer Care TeamDelivery, commissioning, training and support.Sales PartnersRegional commercial and service access.CareersWork on deep e-mobility testing.
Updates and contact
News & EventsProjects, releases, webinars and company updates.Request a technical demoDiscuss your test task with the comemso team.ContactSales, support and locations in one place.

Built for standards. Designed for people.

Test electric mobility.
Advance your development.

EV charging testers and battery cell simulation for EVs, EVSE and BMS. Advance development, validate charging behaviour and reproduce boundary conditions in controlled tests.EVCA and comframe automate standards analysis for e-mobility testing.

Find your test solution Discuss your test task
comemso measurement and test systems, including test racks, mobile testers and comframe
Since 2010BMS test technology.
Charging test technology since 2011. CharIN CCTSValidated Basic and
Extended DC EVSE test profiles. Developed in-houseMade in GermanyHardware, software
and manufacturing at comemso.
2009Start of the comemso group630 kWDedicated laboratory supply2 × 250 kWBattery emulators in our laboratory

Published customer references

FlooxChargersJOJU SolarAalborg UniversityCzech Metrology Institute

Your test objective.

Choose your next test scope, in the lab or at the charging point.

A comemso engineer at an EVCA test system with a charging station connected in the lab
Charging station under test · Simulated vehicle

EVSE tester · EVCA

Simulate the vehicle.
Test the charging station.

Use configured EV simulation to test charging sequences and supported faults. EVCA and comframe provide automated evaluation.

Explore EVSE testing EVCA product family ↗
CharIN Conformance ApprovedCharIN CCTS validatedBasic and Extended DC EVSE test profiles in the validated system configuration.View the validation scope ↗
An electric vehicle connected to an EVCA test system: an engineer investigates charging behaviour in the lab
Vehicle under test · Simulated charging station

EV tester · Vehicles and charging controllers

Simulate the charging station.
Test the vehicle.

Vary EVSE behaviour, timing and supported faults with an EVSE simulator to test charging communication and vehicle responses.

Explore EV testing
Current Easy Chester Ultimate Generation 3 in its open case, with touchscreen and charging interfaces
Easy Chester Ultimate · Generation 3
Original Ultimate interface: EV Safety and RCD selected, measurement fields n/a, progress 0 percent

Guided test selection.Original interface before the test starts.

Commissioning · AC/DC installation tester

Commission charging stations.
Test electrical safety.

Easy Chester Ultimate guides AC/DC commissioning, periodic inspection and service, documenting electrical protective measures on the grid and EV sides and charging function.

Request a 15-minute demo Discover Ultimate ↗
EVSE checklist · English ↗

Further development of the Mini-Charger-Tester.

What customers say about their tests

“Outstanding technical knowledge of comemso and customer application. High product quality and suitable for research.”

Prof. Dr. Remus TeodorescuAalborg University Denmark
Read the published customer testimonials

EVCA and comframe · Automated standards analysis

Understand the measurement.
Choose your next test.

Analysis principleDC CCS
CommunicationPLC messages and timing
Signal statesCP and PP
Electrical valuesDC voltage and current
Configured requirementsStandard edition · Message · Charging phase
Automatically flagged deviationReview the measured event alongside the expected behaviour
Concept diagram for DC CCS, not an actual measurement.
Original comframe interface with communication data and electrical measurement traces
Original comframe view

EVCA and comframe analyse charging against configured standard requirements, flag supported deviations and help you plan targeted follow-up tests.

Request a technical demo Explore the analysis

Precharge

How an EVSE team validated its precharge correction.

A specialist’s comframe analysis of an EVCA recording helped the customer adjust EVSE control parameters. Retesting confirmed the correction for that charging pair.

Follow the diagnostic steps

Use Professional Simulation to vary timing, parameters and supported faults in your next test.

Explore simulation Explore SECC TestLibs

EVCA Charge Playback · From the field to the lab

Record real charging behaviour.
Build your next lab test.

Schematic illustration. Not a product interface.
  1. 01

    Record the real charging pair

    Capture communication, timing and available measurements.

  2. 02

    Use the partner behaviour

    Determine the usable scope for EV or EVSE simulation.

  3. 03

    Test the device again

    Repeat supported behaviour in the lab.

Repeat supported charging sequences in the lab using recorded partner behaviour, without the original charging partner.

Discover Charge Playback

comframe already supports import and analysis.

comframe

Develop your software.
Keep test conditions defined.

Use approved configurations for follow-up tests, recording analysis and integration. We align extensions with your existing system.

Explore integration and extensions For supported EVCA and Calimera configurations; optional control of supported BCS systems.

Specialised test technology

More testing and
calibration solutions.

Develop MCS, test production units, service AC charging points or investigate EMC.

EVCA MCS test rack with an MCS charging cable

MCS · Megawatt Charging

EVCA MCS

Test communication, signals and interoperability during megawatt charging system development.

Explore MCS testing
Easy Chester EOL and EOL HPC for production testing of charging stations

Production · End-of-Line

Easy Chester EOL / EOL HPC

Integrate repeatable manufacturing tests and assign results to the tested units.

Explore production testing
Easy Chester Micro in its open transport case

AC installation tester NEW

Easy Chester Micro

Commission and periodically inspect AC charging stations with a compact system for electrical safety and charging function tests.

Discover Micro
EMC Link in an EMC chamber setup

EMC · Vehicle and charging station

EMC Link

Test charging communication under EMC exposure with optical transmission across the chamber boundary.

Explore EMC testing
Calimera vehicle and employee carrying out mobile calibration at an outdoor charging point

Mobile calibration · Easy Chester Calimera

Calibrate at the charging point.

Compare installed AC/DC energy meters with a traceable reference, controlled load and defined operating points.

Explore mobile calibration
PTBPTB certified · CalimeraProduct-specific evidence. The certification scope is authoritative.View the certification ↗

Match your device, interfaces and test depth to a suitable test system.

Go to the product finder
Two comemso employees developing and testing an open electronic test system

The people behind your test technology

Your test setup.
Supported from the start.

Use comemso hardware, software and application expertise, from selection and commissioning to training, support, calibration and maintenance.

CommissioningTrainingSupportCalibration & maintenance
Meet Customer Care Explore development and manufacturing ↗

Knowledge and tools

Whitepaper, checklist
and calculator.

Concept diagram: the Battery Cell Simulator provides virtual cell states for BMS testing
Whitepaper · BMS · English

Prepare your BMS tests.

Plan tests with guidance on temperature, simulation and wiring.

Get the whitepaper
Preview of the English EVSE checklist
Checklist · EVSE · English

Test charging points systematically.

Prepare commissioning and field tests with the EVSE checklist.

Get the checklist
Calculator · Operations · English

Plan with your own figures.

Estimate downtime and service costs from your own assumptions.

Open the Uptime Calculator

Plan
your next test.

Discuss your test task

Describe your device, interfaces and objectives to define a suitable test setup.

Original view