The test platform for EVSE, EV and BMS teams that need test results before release – instead of a lab full of single instruments.
Simulate vehicles, chargers or battery cells and evaluate the results automatically.
Trusted by EVSE manufacturers, OEMs, charge point operators and test laboratories
“The charging specialists at umlaut use the comemso EV Charging Analyzer in our EFECT lab at the Braunschweig site.”
Built for standards. Designed for people.
comemso is owner-led and investor-free. We develop, build and support every system in Ostfildern, Germany, and work in the standards groups whose rules we test against. That is why every system ships with the people who built it: our engineers answer your support calls.
ISO 15118-20, IEC 61851-23:2023, MCS, NACS and AFIR now land in the same product cycles, and every vehicle meets more chargers and firmware versions than any lab has tested. Teams that test against those profiles before release ship on schedule. Teams that find out in the field pay for it in recalls and firmware rollbacks. Here is how each team keeps up.
EVSE manufacturers
Firmware spans standard editions and vehicle fleets, and interoperability has to work in everyday charging.
Systems: EVCA ComOnly, EVCA Flex, test libraries, comframe, Easy Chester EOL
“…we have achieved excellent results in our validation and certification process.”
OEM and Tier 1
Vehicle and charger variants multiply, and BMS tests need controlled faults without putting real cells at risk.
“comemso offers the ability to test and measure your system on a cell level with high precision.”
Test labs and certification
Devices and standards change between projects, and every report needs traceable, reproducible results.
“…umlaut has once again upgraded the EFECT with comemso hardware.”
Charge point operators and service
Public charging adds operational requirements, and inspections and energy measurements need traceable results.
“…we can guarantee our customers quick service calls and feedback on the reliable functioning of their charging points.”
Each platform is configured for your device, interfaces and test depth.
EV tester and EVSE tester in one: simulates the charging station (EVSE simulator) or the vehicle (EV simulator) for communication, interoperability, high-power, MCS and EMC tests.
Tests charging stations in production, commissioning, service and calibration, with guided test sequences and documented results.
Sets controlled cell voltages and sensor states for BMS tests, from a 24-channel bench to high-voltage HiL.
Repeatable end-of-line tests with results assigned to each unit.
Easy Chester EOL in detail
Compact AC installation tester for commissioning and periodic inspection.
Easy Chester Micro in detail
PTB-certified mobile AC/DC calibration at the charging point.
Calimera in detail
Charging communication across the EMC chamber boundary.
EMC Link in detailcomframe software
EVCA and comframe record charging communication and electrical values on one timeline and check them against configured standard requirements.
EVSE development
A comframe analysis of an EVCA recording helped the customer adjust control parameters. A retest confirmed the correction.
BMS testing
A BESS project expanded its BMS testing capacity as its requirements grew.
Calibration
The Czech Metrology Institute calibrates charging stations at the charging point.
System of the Month
A truck and bus manufacturer integrates a two-rack BMS test bench with 204 simulated cells into its existing CANoe environment.
System of the Month
An AC end-of-line system combines EVCA, a bidirectional load and energy measurement with automated test sequences and reports.
System of the Month
A customer in the USA uses Professional EVSE Simulation to vary messages and timing, then analyses how the vehicle responds.
From selection and commissioning to training, support, calibration and maintenance. Your support contacts work directly with the people who designed your system.
Whitepaper, BMS, English
Plan tests with guidance on temperature, simulation and wiring.
Checklist, EVSE, English
Prepare commissioning and field tests with the EVSE checklist.
Calculator, operations, English
Estimate downtime and service costs from your own assumptions.
Describe your device, interfaces and objectives, and we will define a suitable test setup with you.
Test coverage depends on the system configuration, software version, released standard edition and licence; the product pages describe the details. Automated standards analysis does not replace formal conformance testing. Certification and validation scopes are listed under Quality and certifications.
