On April 24, 2026, the European Committee for Standardization (CEN) published the draft revision EN 15194:2026 for electrically power-assisted cycles (EPACs), introducing new mandatory requirements for battery thermal runaway remote alerting, CAN FD communication compatibility, and BMS data traceability. This update directly affects over 80% of Chinese suppliers of e-bike motor controllers, intelligent control systems, and battery modules exporting to the EU — making it critical for manufacturers, exporters, and certification service providers in the e-mobility supply chain.

Event Overview

The CEN released the EN 15194:2026 draft standard on April 24, 2026. The draft specifies three new technical requirements: (1) remote thermal runaway warning capability for batteries; (2) mandatory CAN FD protocol compatibility for vehicle-level communication; and (3) full bidirectional traceability of BMS-generated data across the product lifecycle. The draft is currently open for public comment and is scheduled for formal adoption in Q3 2026.

Industries Affected by Segment

Direct Exporters of E-Bike Control Systems & Battery Modules

These companies supply motor controllers, smart controllers, and assembled battery packs to EU-based OEMs or distributors. They are affected because compliance with the new battery safety and communication mandates will be required for CE marking under the Machinery Regulation and future EN 15194 conformity assessments. Non-compliant products risk market access denial post-implementation.

Manufacturers of BMS ICs and CAN FD Interface Components

Suppliers of battery management system integrated circuits, CAN FD transceivers, and firmware stacks face design-level impact. The requirement for BMS data traceability and CAN FD interoperability means existing hardware/firmware architectures may require revision — especially for legacy 125 kbps CAN or proprietary communication layers.

Third-Party Certification & Testing Service Providers

Laboratories and notified bodies supporting Chinese exporters must align their test protocols with the draft’s new clauses. As no harmonized testing methodology has yet been published for remote thermal alert validation or CAN FD conformance, these providers will need to prepare updated test plans ahead of final standard publication.

What Relevant Enterprises Should Monitor and Do Now

Track official CEN comments and national committee feedback

The draft remains under public consultation until mid-July 2026. National standards bodies (e.g., SAC in China, DIN in Germany) are submitting technical comments. Companies should monitor published feedback — particularly on implementation timelines, transitional arrangements, and interpretation of ‘remote alert’ scope — as these may influence final requirements.

Assess CAN FD readiness in current controller and BMS designs

Manufacturers should audit whether their latest-generation motor controllers and battery modules already implement CAN FD physical layer and protocol stack (ISO 11898-1:2015, Amendment 1). If not, engineering teams should prioritize feasibility studies for hardware pinout compatibility and firmware migration paths — noting that backward compatibility with classic CAN is not sufficient per the draft.

Document BMS data lineage and remote alert architecture now

Even before final standard release, companies should begin mapping how BMS-generated parameters (e.g., cell voltage, temperature gradients, fault codes) are logged, timestamped, and transmitted externally. The draft requires demonstrable end-to-end traceability — meaning raw sensor data, processing logic, and transmission logs must be auditable. Preparing this documentation streamlines future conformity assessment.

Engage early with EU-based notified bodies on gap analysis

As no official guidance exists yet on validating remote thermal alert functionality (e.g., trigger thresholds, latency limits, network resilience), initiating informal technical dialogues with notified bodies can clarify expectations. Early engagement helps avoid rework during formal certification cycles later in 2026.

Editorial Observation / Industry Perspective

From industry perspective, EN 15194:2026 is best understood as a regulatory signal — not yet an operational mandate. Its draft status means technical details, test methods, and transition periods remain subject to change. Analysis来看, the inclusion of CAN FD and BMS traceability reflects a broader EU trend toward interoperability and digital accountability in light electric vehicles, extending principles seen in automotive standards (e.g., UNECE R155) to two-wheelers. Current more relevant than immediate compliance is strategic alignment: identifying which product lines fall under scope, evaluating supplier dependencies (e.g., CAN FD chip availability), and building internal capacity for data governance around battery telemetry.

Conclusion

This draft revision marks a structural shift — from component-level safety to system-level connectivity and data integrity in EPAC certification. It does not introduce new product categories or ban existing technologies, but raises the bar for functional safety integration and communication robustness. For Chinese suppliers, it is better interpreted as a phased technical upgrade path rather than a sudden compliance deadline — one requiring coordinated action across R&D, quality assurance, and regulatory affairs functions.

Information Sources

Main source: CEN Draft EN 15194:2026, published April 24, 2026. Status: Public consultation phase. Final adoption expected Q3 2026. No official test specifications or implementation guidelines have been issued as of publication date; these remain pending and warrant continued observation.