Capability / robustness testing

Test how charging systems handle unexpected messages

Control the simulated EV or EVSE, vary communication parameters and observe responses to communication errors. Alongside CCS PLC simulation, DC-China (GB/T DC) and CHAdeMO Professional Sim offer advanced CAN controls for repeatable robustness tests.

Find your test solution Explore the controls

Professional Simulation configures supported message content, timing and sequences for a selected EV or EVSE test role

ValuesConfigure nominal, boundary and non-conform behaviour

Message contentSuppress or omit supported optional behaviour

TimingApply message-specific delays and timeouts

SequencesChallenge unexpected states and transitions

Control a simulated charging partner

Configure charging behaviour. Keep the sequence in view.

Use Professional Simulation to control a simulated charging partner. Use Manipulating Gateway to vary communication while the real EV and EVSE remain connected.

Set supported parameters in an application-focused interface and observe how the charging system responds to changes in the sequence. Customers also use this workflow to understand DIN 70121 and ISO 15118-2/-3 charging processes while developing their own implementation.

Four control domains

Vary values, message availability, timing and sequence

01 / Value

Set protocol-specific parameters

For CCS PLC, use valid or invalid DIN 70121 and ISO 15118-2 message parameters within the XML schema ranges.

02 / Presence

Control message availability

For DC-China and CHAdeMO, configure CAN message loss (CAN loss), including its frequency, to test the DUT response to missing communication. CCS supports suppression or omission of supported optional behaviour.

03 / Timing

Change timing by message

For DC-China and CHAdeMO, set CAN cycle times per message type. For CCS, vary individual-message timing and test responses to defined delays and timeout conditions.

04 / Sequence

Challenge the state machine

Test state-machine robustness in CCS, DC-China and CHAdeMO. Use protocol-specific error controls and observe transitions and recovery. CCS additionally supports injecting messages into the charging sequence.

CAN communication

DC-China and CHAdeMO: Professional Sim for EV and EVSE

Advanced CAN parameters are available in EV and EVSE Professional Sim for both standards, alongside the message-loss and cycle-time controls described above.

Repeatable robustness tests

Change one condition and review the complete response

Define the baseline
Choose the EV or EVSE test role, charging standard and expected response under normal conditions.
Configure the challenge
Vary message values, timing or supported additional messages to test a defined behaviour.
Observe the DUT
Run the scenario and correlate state transitions with communication, pilot signals, voltage and current.
Repeat and compare
Save the configuration and compare the response with the baseline. Reuse the setup to check software changes.

Example: a delayed response

Change the timing. Understand the reaction.

Record the baselineRun the configured EV simulation against the EVSE and record the response under normal conditions.
Vary the timing of a supported messageSelect a message and change its response delay using the available controls. The selected protocol and release determine the options.
Evaluate the DUT responseReview the timing deviation, subsequent states and measured response with the configured analysis. Use the evidence to choose the next investigation.
Save and repeatReuse the simulation configuration after a software change and compare the response with the baseline.

See how automated analysis supports evaluation →

Development and regression tests

Use Professional Simulation in development, boundary tests and regression

Development

Controller robustness

Test validation, recovery and safe-state behaviour early in development, while changes to the implementation are easier to make.

Integration

Hard-to-reach boundary cases

Reproduce timing and sequence conditions that are difficult to create reliably, safely or with reasonable effort using real charging partners.

Release

Repeatable regression

Save an approved behaviour configuration and rerun it after changes to software, parameters or hardware.

Test configuration

Choose the licence and hardware for your robustness test

Define the DUT role, charging standard and edition, normal partner behaviour and the message or state to vary. Specify the physical signals, electrical test scope, automation target and evidence required.

Find your test solution Discuss a scenario

Frequently asked questions

Professional Simulation FAQ

Is this the same as a Conformance Test Library?

No. Professional Simulation creates configurable partner behaviour for robustness tests. A Test Library runs released standards-based test cases with defined verdict logic. The methods complement each other.

Does every test require programming?

No. Configure supported values, timing and sequences in the daily workflow. Open interfaces support advanced integration and external orchestration.

Can it test both EV and EVSE implementations?

Yes. DC-China (GB/T DC) and CHAdeMO each offer Professional Sim for EV and EVSE roles. Select the system, charging interface and software configuration for the required protocol and test direction.

Can configured behaviour be automated?

Use saved configurations in repeatable campaigns when integration with Charge Cycle Automation is released for the selected setup.

What should be supplied for configuration?

Provide the DUT role, protocol and edition, normal behaviour and intended variation. Include the physical interface, electrical test scope, evidence needed, automation target and required release status.

Controlled partner behaviour

Define the behaviour for your test

Describe the simulated role, standard, value, timing or sequence variation and the response to measure.

Find your test solution Contact application engineering