EVCA test intelligence

Who performs the analysis—the software or the engineer?

Automated Standards Analysis relates recorded charging communication and timing to the configured DIN 70121 and ISO 15118 requirements. The software highlights deviations; the engineer reviews the evidence and decides what the result means for the test.

Engineer reviewing a software-highlighted deviation against measured charging behaviour and normative context
Measured behaviourProtocol, signals, timing and power
Standard requirementsExpected charging phase, allowed values and timing limits
Focused deviationsFirst inconsistency highlighted
Review the highlighted eventMeasured event, expected limit and deviation together
Test scenario: a response arrives after the expected window

Illustrative timing example, not a quoted standard limit: a test expects a response within 100 ms, but the recording shows 120 ms. The useful result connects the measured event, the 100 ms expectation and the 20 ms deviation. In a real test, the selected standard, message and charging phase define the applicable expectation.

Illustrative values; the real limit comes from the selected standard and message.
EventExpectedMeasuredDeviation
Partner responseWithin 100 ms120 ms20 ms after the example limit
Decoded data is only the start

Compare recorded behaviour with the expected charging sequence

A protocol decoder can tell the engineer which message was sent. It does not automatically explain whether the message arrived in the correct phase, whether the timing matched the applicable expectation or whether a required state was missing.

Automated Standards Analysis productises charging-standard expertise inside the test workflow. It correlates the measurement with normative expectations and highlights the point where the session diverges. The engineer moves from searching across traces to reviewing an evaluated technical event. This turns charging protocol analysis into a repeatable workflow instead of a project-specific manual task.

Measured value. Normative expectation. Software-highlighted deviation.
Measured charging data and normative expectations pass through automated analysis to become evaluated technical evidence
From measurement to technical decision

Automate the repeatable comparison work

The capability keeps the source data visible while adding the standard context required to understand it. This does not hide engineering depth. It places that depth where it belongs: inside a repeatable charging workflow.

Measure, align, evaluate, explain and document: standard knowledge stays inside the evidence workflow
Protocol timing with the applicable standard requirements

DIN 70121 and ISO 15118 timing analysis that shows the expectation, not only the timestamp

DIN 70121 and ISO 15118 timing analysis relates measured messages and state transitions to the applicable timing window. A late, early or missing event becomes visible immediately, while the original trace remains available for detailed engineering review.

ISO 15118 timing analysis with measured events, normative timing windows and evaluation
Illustrative ISO 15118 timing example. DIN 70121 analysis uses the timing requirements of the selected DIN edition; the applicable protocol and analysis scope must be configured.

DIN 70121

Review supported message timing and charging-sequence behaviour in the context of the configured implementation.

ISO 15118-2 and -3

Connect high-level communication with PLC (power line communication) and low-level timing where the selected EVCA configuration provides the required channels.

ISO 15118-20

Apply release-approved analysis functions to supported message sequences and timing. Exact coverage must match the current software release.

Release qualification: standards, editions, message sets and timing checks are configuration-dependent. The selected product release and approved quotation define the exact scope.

The complete DC charging sequence

See DC charging states in the context of the real session

The Cross-Layer State Monitoring combines the expected charging sequence with the measured event. PLC message type, Control Pilot (CP) state, Proximity Pilot (PP) state, DC voltage and DC current can be viewed in the context of the active charging phase.

Cross-layer state monitoring combining Annex CC phase, PLC message, CP, PP, voltage, current and evaluation
Illustration of synchronised layers; channel coverage depends on hardware and software configuration. This is not a conformance verdict.

Expected, missing or excessive

Expected behaviour is presented clearly. Missing states, missing values or behaviour that appears where it should not can be marked for review. The user sees where the charge diverged instead of searching through separate communication and oscilloscope traces.

IEC 61851-23 Annex CC with measured evidence

The sequence view provides a common reference for engineers who need to discuss a charging event across software, power electronics and system teams. Exact panel content and standard edition require release approval.

One method. Technology-specific charging states for DC CCS, CHAdeMO and GB/T DC.

Cross-Layer State Monitoring checks whether protocol messages, low-level signals, state transitions and electrical values form an allowed and technically consistent combination at a given point in the charging process. The technology determines the communication and signal layers. The measurement and evaluation method remains consistent.

DC CCS

PLC, CP/PP and electrical state

  • DIN 70121 and ISO 15118 communication
  • CP and PP state context
  • IEC 61851-23 charging phases and Annex CC context
  • DC voltage, current and expected transition
CHAdeMO

CAN communication and CHAdeMO state context

  • CHAdeMO CAN messages and timing
  • Technology-specific control and connector states
  • Charging sequence and permitted combinations
  • DC voltage, current and reaction of both partners
DC China / GB/T DC

GB/T CAN communication and low-level state

  • GB/T 27930 communication and timing
  • GB/T 18487.1 interface and state context
  • Technology-specific charging phases
  • DC voltage, current and highlighted deviation

Exact protocol versions, state models, measured channels and evaluation functions depend on the selected EVCA system, hardware modules and released comframe configuration. Cross-Layer State Monitoring complements, but does not replace, a formal Conformance Test Library.

Communication and power on one timeline

Find the first meaningful deviation across every configured layer

Protocol messages explain only part of a charging failure. Correlating them with CP, PP, voltage and current helps determine whether communication, low-level control or power behaviour initiated the event.

Measurement and normative expectation are validated together and packaged as reusable technical evidence
Capability boundaries

Analysis, simulation and conformance are different jobs

Choose data capture to inspect what happened, continuous analysis to investigate supported rules, and a configured test case when the task requires a controlled stimulus and an explicit evaluation.

Comparison of a trace viewer, Automated Standards Analysis and a Conformance Test Library
Illustrative interface and example values; not a real measurement or conformance record. Viewing data, continuous analysis and executing a test case are distinct tasks.
Related capability

Professional Simulation

Configures the behaviour to be tested, including supported message content, timing and non-conform variants.

Related capability

Conformance Test Libraries

Execute defined test cases and verdict logic for a supported implementation profile.

Application

Interoperability & Charging Analysis

Uses synchronised evidence to understand a real EV and EVSE (electric vehicle supply equipment, or charging station) interaction and reproduce the issue.

Reuse the evaluation when you repeat the test

Analysis that scales

Automated Standards Analysis supports individual development sessions, real-pair recordings and repeatable test campaigns. The same charging protocol analysis principles remain reusable across these contexts. The selected EVCA system determines which standards, measurement layers and evaluation panels are available.

Controller and vehicle integration

Review timing, states and charging behaviour before the complete power environment is available or during integrated vehicle validation.

Charging-station analysis

See how the simulated or real vehicle reacts to SECC (station-side charging communication controller) behaviour, charging states and measured power transitions.

Real EV ↔ real EVSE sessions

Apply evaluated context to synchronised recordings so the first deviation can be discussed across both implementation teams.

Neutral technical evidence

Preserve the measured behaviour and normative expectation together for repeatable laboratory decisions and customer communication.

Automated charging campaigns

Reuse the released evaluation logic across variants instead of rebuilding the analysis for every configuration.

One evidence base

Share the evaluated event with software, controller, power-electronics and system partners without reducing the issue to a raw trace attachment.

Choose the device, standard and measurements for the test

From test role to released analysis scope

A useful configuration defines more than a protocol name. It states which measured layers, normative references, panels, outputs and EVCA system path are required.

Configure the analysis around the standard, the DUT and the evidence
  1. DUT and test role

    EV, EVSE, controller or real charging pair

  2. Charging standard

    Protocol family, version and implementation profile

  3. Measured layers

    Messages, timing, CP, PP, voltage and current

  4. Evaluation scope

    Timing, states, values, phases and normative limits

  5. Evidence output

    Monitoring view, traces, reports and exported data

  6. System path

    ComOnly, Multi Mobile, Interop, Flex or MCS configuration

Selected EVCA system + released analysis coverage + approved normative references

1. DUT and test role EV, EVSE, EVCC, SECC, subsystem or real charging pair.
2. Standard scope DIN 70121, ISO 15118 or IEC 61851 functions and approved editions.
3. Measured layers Messages, timing, CP, PP, voltage, current and additional configured channels.
4. Evaluation depth Phases, states, timings, values and normative limits.
5. Evidence Monitoring views, traces, reports, exports and campaign results.
6. System path Hardware, software licences, Test Libraries and integration requirements.
Frequently asked questions

Automated Standards Analysis FAQ

Automated Standards Analysis connects measured charging behaviour with applicable timing, states, phases and normative expectations. Instead of showing only decoded protocol data, it highlights where the observed session matches the expected behaviour and where a technical review is required.

A trace viewer exposes messages and timestamps. The engineer still has to compare them manually with the relevant standards. This capability adds the applicable standard requirements, correlates configured measurement layers and makes deviations visible inside the charging workflow.

No. It removes repetitive comparison work and presents the measurement, expectation and deviation together. The engineer remains responsible for technical interpretation, root-cause confirmation, product decisions and the approved test conclusion.

The capability scope can include DIN 70121 and ISO 15118 timing analysis as well as IEC 61851-23 Cross-Layer State Monitoring for DC CCS, CHAdeMO and DC China / GB/T DC. Exact standard editions, protocol versions, measured layers and evaluation functions depend on the released software and EVCA configuration.

DIN 70121 and ISO 15118 timing analysis relates a measured message or state transition to the applicable timing expectation. The result shows both the real timestamp and the configured normative window so that late, early or missing behaviour can be reviewed immediately.

The Cross-Layer State Monitoring places the measured charging session in the context of the expected DC charging sequence. Depending on configuration it combines PLC message type, CP and PP state, DC voltage, DC current and the active charging phase.

Standards-aware review

Show the deviation; keep judgement with the engineer.

Define the measured layers, applicable expectations and evidence required for engineering review.