EBS DATA READING AND TRAILER TRACKING FOR HEAVY FLEET LOGISTICS

INTRO

Complete visibility over heavy-duty fleets is still a difficult task. Although tracking a vehicle is very easy, adding a trailer usually necessitates additional equipment and greater fees, which customers detest. However, what if we told you that GPS vehicle trackers may replace the requirement for extra hardware? Complete truck-trailer visibility is now achievable through CAN bus connection, providing a customized solution for the rental and logistical requirements of contemporary fleet management, thanks to the TrailerCAN feature.

CHALLENGE

Which one—the vehicle or the trailer—is carrying the load? The real items being hauled are always in the trailer, whether it's a side dump carrying gravel or a refrigerated unit bringing medications. Data supports the increasing emphasis on trailer management: according to Berg Insight (2025), 22.4 million cargo unit trackers will be in use worldwide by 2028. But as use rises, there are new obstacles to overcome, like managing more data and tracking more equipment.

A lack of visibility is frequently the first sign of trailer management issues. Drivers may unintentionally leave the hub with the incorrect unit if trailers are not consistently recognized and connected in the system. Once the truck is on the road, fixing such mistakes necessitates more communication and interferes with delivery plans. When exte al devices are required to track assets, order management also suffers since drivers could neglect to connect them.

Additionally, even though trailer connection complies with ISO requirements, the potential of human error grows with the addition of additional sensors or procedures. All combined, these gaps consume time, cause confusion, and delay operations throughout the fleet. However, the difficulties don't stop when the truck leaves the yard. Trailer condition has a direct impact on fuel economy and maintenance when traveling.

Up to 30% of fleet operating costs are related to fuel, making it one of the biggest cost drivers. Many logistics operators concentrate on route optimization, fuel station relationships, and driver conduct in an effort to lessen this. However, trailer tires are another less evident element that affects economy.

Increased rolling resistance from underinflated tires makes it harder to move the car and uses more gasoline. In actuality, a 1% increase in fuel consumption per trip can be caused by even a 5% drop in pressure. In order to remedy this, new EU laws mandate that all trailers registered after July 7, 2024, have tire pressure monitoring systems (TPMS). These systems are crucial for reducing fuel expenses and averting preventable malfunctions.

Trailers are increasingly being treated by regulations as distinct, responsible assets. Switzerland's e-toll system now charges for both trucks and trailers, while new brake regulations in the UK mandate inspections four times a year unless electronic data is submitted. Trailer data is becoming crucial for compliance as comparable regulations proliferate around the world.

SOLUTION

You only need one gadget to keep an eye on the truck and its trailer when you use a GPS vehicle tracker. This is made feasible by the fact that contemporary trucks and trailers are built to function as a single, integrated system, exchanging vital operational information via their Electronic Braking Systems (EBS).

How does it operate? The EBS modules on a trailer and truck immediately interact with one another via the common electrical connection. This data interchange occurs continually while linked because the truck must coordinate braking, check tire pressures, and control other safety systems across the entire vehicle combination.

To obtain vital trailer data, like tire data, VIN numbers, braking performance, and other crucial factors, the TrailerCAN function leverages this current connectivity. It supports three different connection methods to match any operational needs:

1. Straight from the truck: The tracker can obtain trailer data straight from the truck's CAN bus once the trailer is connected. It is advised to utilize an adaptor in order to protect the vehicle's wiring and warranty.

2. Straight from the EBS modulator: To guarantee compatibility, the device can be linked to the trailer's EBS modulator directly using its diagnostic line or to another CAN line using an OEM cable made specifically for that manufacturer.

3. Via the Trailer Socket: Tracker installation can also be accomplished by plugging into the trailer's ISO 7-pin socket.

It makes sense to connect using the EBS modulator or ISO 7638 socket if the main objective is to monitor the trailer, as in rental fleets or cargo-focused companies.

However, the most efficient configuration is to install a tracking device inside the truck to obtain complete operational visibility, including vehicle status and driver behavior. In this manner, the adaptor reads trailer data via the current EBS communication network while our tracker accesses truck data via an FMS connection.

Fleet managers can use the integrated eco-driving capabilities to monitor driving behavior and lower fuel and maintenance costs by having access to FMS data. Meanwhile, improved adherence to driving time regulations and more intelligent route planning is made possible by tachograph data. This helps businesses optimize delivery schedules and prevent fines, particularly when arranging stops with fuel partners.

Axle loads, TPMS data, the VIN number, brake system status, and other dynamic driving aids like traction and stability controls are all visible in real time on the trailer side thanks to TrailerCAN. This reduces expensive mistakes or compliance risks associated with overloading or equipment mismatch, in addition to guaranteeing the cargo is transported under the proper conditions and assisting in confirming the correct trailer is being used.

BENEFITS

• Accurate trailer identification: Fleet managers may avoid misassignments, delays, and confusion at loading docks by using Tracker's VIN reading technology, which guarantees that fleet managers always know which trailer is attached.

• Trailer health monitoring: fleet managers may collect usage data, identify possible problems early, and prevent expensive breakdowns and last-minute repairs by monitoring axle load, tire pressure, and brake condition. 

• Reduced maintenance costs: By keeping an eye on trailer problems in real time, emergency repairs can be avoided and planned maintenance can be more predictable, keeping trailers in good shape and avoiding unforeseen costs.

• Universal solution: Tracker can be placed on either the truck or the trailer to collect the same quantity of data, depending on fleet ownership.