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Products / EVCA Platform / Multi Mobile

EVCA Multi Mobile: Portable EV and EVSE Test System

Take a charging measurement from the laboratory to the vehicle or field installation. Use Multi Mobile to observe a real charging pair or configure a simulated partner with the necessary external power equipment.

Configure EVCA Multi Mobile See the three test roles
Front view of the EVCA Multi Mobile portable EV and EVSE test system
EVCA Multi MobilePortable charging test platform
One portable architectureMove between laboratory, vehicle, test event and field.
Three test rolesSimulate the EV, simulate the EVSE or analyse the real pair.
Multiple charging familiesConfigure AC, CCS and NACS, CHAdeMO or GB/T DC.
One evidence chainKeep signals, protocol, timing and electrical behaviour aligned.

One device from a field finding to laboratory EV simulation.

An EVSE (electric vehicle supply equipment, or charging station) manufacturer purchased Multi Mobile with a 3 kW laboratory source/load after a precharge investigation. About three minutes of human analysis followed the recording; setup, software work and retest took additional time.

Read the customer account

Portable engineering system

The critical charging behaviour is not always waiting in the laboratory.

Vehicles, prototypes, charging stations and interoperability partners are often available only at a site, workshop, proving ground or test event. Moving every DUT (device under test) into a fixed laboratory delays diagnosis and can remove the exact condition that triggered the failure.

EVCA Multi Mobile carries the physical charging interface and the shared EVCA test intelligence to the point of interaction. The same platform can simulate one charging partner, observe both real partners and return to the laboratory for controlled reproduction and regression.

Product boundary

Multi Mobile is a portable development, analysis and validation platform. It is not positioned as a generic service checker and it does not replace EVCA Flex where integrated high-power, switching and deep electrical fault injection dominate the test objective.

EVCA Multi Mobile connected between a real electric vehicle and a public DC charging station
Portable physical-interface testing at the real charging location. The final cables, modules, power hardware and software scope follow the configured system.

One system. Three boundaries.

Simulate either charging partner or analyse the real pair between them.

The DUT defines the role. Multi Mobile places the portable EVCA hardware and comframe software at the charging boundary that must be controlled, observed or challenged.

EVCA Multi Mobile positioned for EV simulation, EVSE simulation and gateway analysis

EV simulation

Test the charging station.

Multi Mobile behaves as the electric vehicle and provides controlled vehicle, battery-request and communication behaviour to a real EVSE.

  • Configure normal, boundary and non-conform EV behaviour.
  • Measure Control Pilot (CP), HLC, timing and configured voltage/current values.
  • Connect project-specific load or bidirectional power hardware where energy transfer is required.
  • Execute reusable simulations, automation and supported EVSE Test Libraries.
Open the EVSE Testing application

EVSE simulation

Test the electric vehicle.

Multi Mobile behaves as the charging station and challenges the real charging inlet, EVCC (vehicle-side charging communication controller), onboard charger and vehicle charging logic.

  • Provide configurable SECC, signal and protocol behaviour.
  • Vary messages, timing, limits, authorisation and termination.
  • Connect project-specific source hardware when the vehicle must receive power.
  • Correlate vehicle-side CAN data and EVCC, OBC and BMS reactions where integrated.
Open the EV Testing application

Passive or manipulating gateway

Analyse the real EV and EVSE.

Place the system between both charging partners and correlate what each side transmits, measures and does on one synchronised timeline.

  • Observe the real pair without replacing either implementation.
  • Decode supported CCS communication, including applicable gateway access for TLS/PnC.
  • Modify, delay, suppress or replace selected live information where configured.
  • Record field behaviour for root-cause verification and later reproduction.
Open Interoperability & Charging Analysis

Charging-specific analysis

Showing decoded data is not the same as analysing the charging process.

A charging interruption rarely explains itself in one trace. Multi Mobile keeps the physical interface, low-level signals, protocol content, timing and available electrical measurements in one technical context.

EVCA Multi Mobile evidence chain across interface, signals, protocol, electrical values and time

Physical interface

Regional connector, inlet, CP, Proximity Pilot (PP), PLC (power line communication) or CAN path and auxiliary signals remain part of the measurement.

Protocol behaviour

Retain sender, message content, order, state and configured TLS or certificate context.

Timing

Place message delays and state transitions beside the physical reaction instead of reviewing separate clocks.

Electrical response

Correlate configured voltage, current and external measurement channels with the communication sequence.

Standards-aware evaluation

Let comframe compare behaviour with expected limits, highlight relevant deviations and preserve the result as evidence.

Field-to-laboratory continuity

Turn one difficult charging event into a controlled, repeatable test.

Capture the real interaction where it happens. Isolate the first meaningful deviation. Validate the hypothesis. Reproduce supported charging-partner behaviour at the physical interface. Keep the case for regression.

Engineer using EVCA Multi Mobile and a laptop during a real charging analysis
Capture and analyse the real EV-to-EVSE interaction at the site.
EVCA Multi Mobile portable test setup beside an electric vehicle and charging station
Use the same EVCA test intelligence in changing environments.

From a real charging event to reusable test evidence

  1. Connect and capture

    Record protocol, signals, timing and electrical values at the real charging interface.

  2. Isolate the cause

    Align every layer and let standards-aware analysis highlight the deviation.

  3. Change one variable

    Modify message content or timing with the Manipulating Gateway or simulation.

  4. Reproduce physically

    Use Charge Playback to recreate recorded behaviour at the charging interface.

  5. Automate regression

    Save the case, vary it and run it repeatedly through Charge Cycle Automation or REST API.

Field evidence becomes a controlled, repeatable lab test

Shared EVCA test intelligence

Configure the test. Do not develop the test environment from scratch.

Multi Mobile combines a portable EVCA system with comframe-based analysis, simulation and automation capabilities. Explore each capability for its method and released scope.

Automated Standards Analysis

Relate measurements, state transitions, timing and messages to normative expectations and highlight deviations.

Professional Simulation

Configure supported message values, timing, optional sequences and deliberately non-conform behaviour.

Manipulating Gateway

Observe and change selected live communication while both real charging partners remain connected.

Charge Playback

Physically reproduce recorded protocol-level EV or EVSE behaviour so the DUT interacts with a repeatable partner.

Charge Cycle Automation

Sequence configurations and variants for repeatable campaigns, endurance work and regression.

Conformance Test Libraries

Execute released standards-based test cases with automated steps, supported verdicts and reports.

REST API and integration

Connect Multi Mobile to project automation, external measurement, HIL (hardware-in-the-loop) and CI workflows.

Configuration rule. Not every capability is available for every charging interface, protocol release or test role. The quotation must identify hardware, connectors, software licences, Test Libraries and current release scope explicitly.

Charging technologies and standards

Take one portable EVCA architecture across the charging families your programme must support.

The exact connector set, protocol version, measurement range and Test Library release remain configuration-dependent. Multi Mobile is selected around the project portfolio rather than a single fixed protocol.

PLC-based charging

Configure Type 1, Type 2, Combo or NACS interfaces for EV, EVSE and gateway roles.

CAN-based DC charging

Use configured CHAdeMO connector, CAN communication and low-level state access in EV, EVSE or measurement roles.

Chinese DC charging

Address EV and EVSE communication for supported GB/T generations without changing to a separate analysis architecture.

Charging communication under stress

An optional EMC-compatible housing supports configured EV or EVSE test roles while the DUT is exposed to conducted or radiated stress.

Separate communication support, security functions and conformance scope.

For example, ISO 15118-20 communication, Plug and Charge or TLS gateway access, certificate handling and a specific conformance Test Library are distinct configuration and release decisions. Product-family availability does not mean that every Multi Mobile system includes every function.

Configuration logic

Specify the system around the DUT, interface and engineering decision.

The product name alone is not a test specification. Define the role, charging technology, communication depth, power context, evidence and upgrade path before hardware and licences are fixed.

  1. 01
    DUT and role

    EV, EVSE, both real partners, charging controller or coordinated subsystem.

  2. 02
    Charging interfaces

    AC, CCS1, CCS2, NACS, CHAdeMO or GB/T DC, including connector arrangement.

  3. 03
    Communication depth

    Low-level signals, PLC or CAN, HLC (high-level communication), timing, TLS, certificates and external CAN data.

  4. 04
    Power context

    Measurement only, customer load, source, bidirectional supply or planned EVCA Flex link.

  5. 05
    Capabilities and evidence

    Gateway, Professional Simulation, Charge Playback, Test Libraries, automation, REST API and reports.

  6. 06
    Environment and growth

    Laboratory, vehicle, field, test event, EMC chamber, Interop workflow or later Flex expansion.

Start the EVCA configuration Compare the EVCA platform
Right-side product view of EVCA Multi Mobile showing portable enclosure and charging interfaces
PortableLab, vehicle, field
ConfigurableRole, interface, power
ScalableInterop and Flex paths

Frequently asked questions

EVCA Multi Mobile product questions

What is EVCA Multi Mobile?

EVCA Multi Mobile is the portable system path within the comemso EV Charging Analyzer/Simulator platform. It combines configured physical charging interfaces, EV and EVSE simulation, passive or manipulating gateway analysis and comframe test intelligence for laboratory, vehicle and field work.

Can one system test both electric vehicles and charging stations?

Yes. In EV simulation, Multi Mobile acts as the vehicle side to test a real EVSE. In EVSE simulation, it acts as the charging-station side to test a real EV. Exact interfaces, power integration and protocol releases depend on the configured system.

Can EVCA Multi Mobile analyse a real EV and a real EVSE at the same time?

Yes. In passive or manipulating gateway configurations, Multi Mobile is placed between both charging partners and correlates supported signals, protocol messages, timing and electrical measurements on one timeline. Applicable TLS access requires the corresponding gateway, certificate and release configuration.

Which charging technologies can be configured?

Published Multi Mobile configurations cover AC and DC CCS Type 1 and Type 2, NACS, CHAdeMO and GB/T DC. The quotation must state the actual connectors, protocol generations, measurement scope and Test Libraries.

Does EVCA Multi Mobile support ISO 15118-20?

ISO 15118-20 communication is available in applicable released EVCA configurations. Basic communication support, simulation depth, security functions and conformance Test Library availability are separate scopes and must be confirmed independently.

Does the system include a high-power source or load?

Not by default. Multi Mobile is optimised for portable physical-interface access, simulation and synchronised analysis. Project-specific resistive loads, sources or bidirectional power systems can be integrated. EVCA Flex is the dedicated path when scalable high-power and deep electrical fault testing are primary.

EVCA system planning

Match the EVCA path to the real test boundary.

Specify the DUT, simulated role, charging family, physical depth and software scope.

Configure your test systemContact application engineering

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EVCA system selection and growth

Choose Multi Mobile when the DUT or charging problem moves.

Select the system by the dominant test boundary. EVCA shares software and engineering principles across the platform, but each product path owns a different physical depth.

Controller and communication bench

EVCA ComOnly

EVCC and SECC (station-side charging communication controller) communication development without the broader portable charging-interface and power context.

Grow toward Multi Mobile or Flex
Portable physical-interface testing

EVCA Multi Mobile

EV simulation, EVSE simulation and gateway analysis around real vehicles, charging stations and changing locations.

Current product path
Focused real-pair root cause

EVCA Interop

Dedicated real EV-to-real EVSE workflow for capture, synchronised analysis, validation and field-to-lab transfer.

Use when the real pair is primary
Scalable laboratory and power depth

EVCA Flex

External or integrated source/load architecture, switching, high voltage and deep electrical fault testing.

Upgrade when power risk dominates

Product boundary at a glance

Exact implementation still depends on connector, module, software and external power configuration.

On smaller screens, scroll the table horizontally to see every column.

Selection criterionComOnlyMulti MobileInteropFlex
Primary purposeController communicationPortable lab, vehicle and field testingStructured real-pair investigationModular high-power validation
Physical charging interfaceController or integration interfacePortable regional connectorsDefined by the real-pair setupConfigurable laboratory interfaces
EV and EVSE simulationYes, communication-focusedYes, with portable physical contextCase-dependentYes, scalable
Real EV + EVSE analysisInterface-dependentStrong mobile rolePrimary product roleConfigurable
Power and fault depthCommunication onlyMeasurement and external project hardwareMeasurement and partner interactionLow to high power and deep faults