EBS-Safe Braked | Enforces Driver Coupling | ISO 7638

EBS-Safe Braked: Enhanced Safety with Brake Interlock Technology

The EBS-Safe Braked system builds on the proven safety principles of the standard EBS-Safe system, adding an extra layer of protection through its innovative Maple SafeConnect Valve. This advanced technology introduces a trailer brake interlock feature to ensure maximum safety when a valid ISO 7638 ABS/EBS connection is not detected.

What is the ISO 7638 coupling and why is it important?

The Risks of Operating Without an ISO 7638 Connection

Why Choose EBS-Safe Braked?

In addition to providing the visual and optional audible warnings of the standard EBS-Safe system, the EBS-Safe Braked system goes further by actively engaging the trailer’s brakes. This ensures the trailer cannot move unless a valid ISO 7638 connection is established, preventing accidents before they can occur.

Key Features of EBS-Safe Braked

Trailer Brake Interlock: Keeps the trailer brakes engaged until the ISO 7638 connection is properly established, ensuring absolute safety during coupling and uncoupling.
Warning Light: A bright indicator on the trailer’s front bulkhead, positioned for visibility in the driver’s mirror.
Optional Siren: A 90 dB siren can be added to provide an audible alert when the ISO 7638 connection is invalid or missing.
Powered by Existing Electrics: No need for independent batteries, simplifying installation and maintenance.
Retrofit Compatible: Easily installed on both new builds and existing trailers.

How Does EBS-Safe Braked Work?

The system functions by monitoring the ISO 7638 connection status when power is detected from the 24N or 24S couplings. If a valid connection is not detected, a warning light (and optional siren) activates and the Maple SafeConnect Valve does not allow the trailer brakes to release . This prevents the trailer from being moved until the issue is resolved.

Once the ISO 7638 connection is re-established, the system automatically releases the brake interlock, allowing the trailer to operate safely.

What Makes EBS-Safe Braked Essential?

The EBS-Safe Braked system provides a critical safeguard for trailers by ensuring a valid ISO 7638 connection is present before the trailer can be moved. This connection powers the Electronic Control Unit (ECU), which is responsible for managing numerous safety features. Without it, these systems fail to operate, increasing the risk of accidents.

Peace of Mind for Fleet Operators

The EBS-Safe Braked system reinforces Don-Bur’s commitment to safety by addressing both passive and active risks associated with trailer coupling and movement. By adding brake interlock functionality, it ensures that trailers remain stationary until they are fully compliant with ISO 7638 requirements.

With EBS-Safe Braked , operators gain the confidence that their fleet is not only meeting safety standards but exceeding them, providing the highest level of protection for drivers, vehicles, and cargo.

Upgrade to EBS-Safe Braked

For fleets looking to enhance their safety protocols, the EBS-Safe Braked system offers a robust and reliable solution. Whether you’re upgrading an existing fleet or specifying a new build, Don-Bur’s advanced safety systems deliver peace of mind and superior protection.

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What is the ISO 7638 coupling and why is it important?

The ISO 7638 coupling, commonly known as the EBS or ABS coupling, powers the trailer ECU (or brain) when the ignition is on.

The trailer ECU powers and controls the following critical safety features:

Roll Stability System (RSS): Prevents roll-over during sharp turns or sudden manoeuvres.
Anti-Lock Braking System (ABS): Prevents wheels from locking during braking, improving control and reducing skidding.
Load Sensing Valve (LSV): Adjusts braking pressure based on the trailer’s load weight for optimal performance.
Braking Response Time: Provides faster reaction times between pedal activation and brake engagement, reducing stopping distances.
Suspension Control: Ensures the trailer’s suspension adjusts to the correct ride height, critical for maintaining proper trailer clearance, especially for high double-deck trailers.

The Risks of Operating Without an ISO 7638 Connection

A missing or non-functional ISO 7638 connection can result in:

Bridge Strikes: High double-deck trailers relying on suspension control to maintain correct ride height may exceed bridge clearances, leading to dangerous and costly collisions followed by potential investigations.
PG9 Prohibition and Possible Driver Endorsements / Fines: The ISO 7638 coupling is a legal requirement and is enforced by the DVSA.
Rollovers and Jack-Knifing: Increased likelihood during sudden manoeuvers or uneven loads.
Reduced Braking Performance: Longer stopping distances and less control.
Aquaplaning: Greater risk of losing traction in wet conditions.