Calibration data under control – in your infrastructure.
VersaCal is the web-based platform for ECU calibration: versioning, reviews, plausibility checks, A2L/HEX diff and AI assistance. Run on-premise or in your own cloud – your calibration data never leaves your house.
Version comparison with physical values and delta
Made for the people doing the calibration
VersaCal is tailored to the daily work of powertrain calibration teams – not a generic file store.
Calibration engineers
Understand, change, compare and release parameters – with context, history and traceability.
OBD departments
Consistency and plausibility checks, limit rules and traceable approvals for the diagnostics-relevant state.
ECU / powertrain
A2L/HEX, curves and maps, XCP live measurement – the tools your ECU work actually needs.
Everything for the calibration workflow – in one platform
From the change through the review to release and porting onto the next software level.
Versioning
Every state traceable: versions, drafts, series levels, author and timestamp – like Git, but for calibration data.
AI assistance
Change summaries, risk scoring, natural-language rules and edits, a review bot and a knowledge assistant – optionally via your own AI endpoint.
Four-eyes reviews
Change request, per-parameter comments, approval by a second role. Commit only after sign-off – with a certificate.
Plausibility checks
A2L and value consistency, limits, monotonicity, gradients, address overlaps, anomalies in curves and maps.
Live measurement (XCP)
Read measurements straight from the ECU and apply calibration values online – simulator included for trials.
A2L/HEX diff
Compare two states parameter by parameter – physical values, delta, jump straight back to source and HEX address.
Export into your forms
Delta DCM, CDFX, HEX/S-Record and PDF reports – results flow into your existing forms and release records.
Porting
Move a calibration onto a new A2L/software level – renamed parameters are detected by AI and their value carried over.
Roles & corporate identity
RBAC (viewer / calibrator / approver), SSO via Microsoft Entra ID, SAML and OIDC, user provisioning via SCIM.
A version comparison that explains every value
Compare two versions – or the open draft against its predecessor – parameter by parameter with physical old/new values and delta. From any row you jump straight into the A2L source or onto the HEX address. Export as CSV, PDF or delta DCM.
- Physical values incl. unit and delta
- Jump back to source and HEX
- Export as CSV / PDF / delta DCM
| Parameter | Alt | Neu | Δ | Risiko |
|---|---|---|---|---|
| Idle_Temp | 60.0 | 55.0 | −5.0 | hoch |
| Curve_Fuel[2] | 3.0 | 3.3 | +0.3 | mittel |
| Map_Spark[1,3] | 18.0 | 18.5 | +0.5 | niedrig |
| KNK_THRS_HI | 2.40 | 2.55 | +0.15 | mittel |
Plausibility and health – before release
A health report checks A2L consistency and values against their limits, finds address overlaps, undecodable objects and rule violations. The anomaly scanner detects non-monotonic axes, jumps and outliers in curves and maps – and the AI explains and triages the findings.
- Limits, monotonicity, gradients, saddle points
- Your own calibration rules in plain language
- AI explanation & triage: critical / review / intended
AI assistance – an assistant, not an autopilot
Summaries for the review, risk scoring of changed parameters, calibration edits and rules from natural language, a review bot and a dataset knowledge assistant. Every write suggestion goes through a preview and the four-eyes gate – nothing is applied unchecked.
- Optionally via your own AI endpoint (GDPR)
- Always preview, never direct write access
- Switchable off – the platform runs without AI too
Why VersaCal instead of classic tools?
Many calibration teams still work with heavyweight desktop tools and file shares. VersaCal is built for 2026 from the ground up.
| Classic desktop tools | VersaCal | |
|---|---|---|
| Access | Local install per workstation | Web-based – a browser is enough, nothing to install |
| Collaboration | File exchange, manual merges | Central versioning, reviews, comments, audit |
| Operation | Tied to the workstation | On-premise or in your cloud – your choice |
| AI support | None | Built in – possible via your own AI endpoint |
| Approval process | Informal, hard to prove | Four-eyes sign-off with certificate and audit trail |
| Identity | Local accounts | Microsoft Entra ID / SAML / OIDC, SCIM provisioning |
| Evolution | Vendor release cycles | Tailored to your needs |
Your data stays with you
VersaCal integrates flexibly into your environment. Calibration data is valuable know-how – it should not leave your house. That is exactly what the platform is built for.
On-premise
Entirely in your data centre. No outbound connection required.
Your private cloud
Operated in your cloud tenant (e.g. Azure), under your control and policies.
Your own AI endpoint
AI features can run against an in-house/EU endpoint – no calibration data to third parties.
GDPR-compliant operation
Storage and processing in your infrastructure, no telemetry, full control.
Note: “GDPR-compliant operation” refers to the operating model (data kept in your infrastructure), not to an external certification.
Ready for corporate IT
Single sign-on
Microsoft Entra ID, SAML 2.0 and OpenID Connect – log in via your identity provider.
User provisioning
SCIM: create and revoke accounts and roles automatically from your directory.
Roles & permissions
Fine-grained RBAC: read, calibrate, approve – separated and traceable.
Audit trail
Who changed, commented and approved what and when – fully logged.
Multi-tenancy
Separate areas for teams, projects or model series – as an enterprise stage.
Custom development
As a partner we build exactly the features your process needs.
A tool that grows with your process
Instead of rigid release cycles we evolve VersaCal together with you – close to your calibration workflow, your formats and your release rules. As a design partner you help shape the roadmap.
Experience VersaCal in your environment
Book a demo. We show the platform on your workflow – and discuss integration into your infrastructure.