The Short Answer
X-Wire solves a specific engineering problem: communicating safety information reliably between connected or changing sections of vehicles and equipment.
In articulated tractor and trailer applications, conventional communication approaches can introduce additional data cabling and connections, wireless pairing or reconnection requirements, and additional tasks when vehicle combinations change.
X-Wire uses Vehicle Safety Powerline Communication (VSPC) to communicate appropriately encoded safety information over existing OEM power wiring. This reduces the additional cabling required, reduces installation time, simplifies fault finding and allows compatible safety equipment to communicate across changing vehicle combinations without wireless pairing or additional communication tasks for the driver.
The result is a communication architecture designed to make compatible safety technology easier to install, operate and maintain across changing vehicle combinations.
Why Can Trailer Safety Communication Create Problems?
Safety equipment mounted on a trailer may need to communicate information to equipment in the tractor unit. However, unlike components installed on a rigid vehicle, the tractor and trailer are separate vehicle sections designed to be repeatedly connected, disconnected and interchanged.
A communication pathway therefore has to work not just on one vehicle combination, but across the different vehicle combinations encountered during normal fleet operation.
Different communication approaches solve this challenge in different ways. Depending on the method used, this can introduce additional cabling and connections, wireless communication requirements or additional processes when trailers change.
X-Wire was developed to address these practical problems whilst allowing compatible safety equipment to communicate across the tractor-trailer interface.
How Does X-Wire Reduce Additional Cabling And Connections?
A dedicated data pathway requires additional cabling to carry information between the relevant safety equipment on the tractor and trailer.
That cable has to be routed and protected through the vehicle and, on an articulated application, may require an additional data suzie or other external connector across the tractor-trailer interface.
X-Wire takes a different approach. Vehicle Safety Powerline Communication uses existing OEM power wiring as the pathway over which appropriately encoded safety information is communicated.
This reduces the additional cabling and connections required specifically for the safety-system communication pathway.
How Does X-Wire Reduce Installation Time And Vehicle Downtime?
Installing additional communication cabling takes time.
Cables have to be routed through the vehicle, protected from damage, terminated correctly and connected to the relevant equipment. On an articulated vehicle, any additional communication connection across the tractor-trailer interface also has to be installed.
By using existing OEM power wiring for the communication pathway, X-Wire reduces the amount of additional cabling required.
This reduces installation time and, because the vehicle can return to service sooner, reduces the downtime associated with installing compatible safety equipment.
Across a larger fleet, those reductions can become increasingly significant as more tractors and trailers are equipped.
How Does X-Wire Simplify Trailer Changes And Reduce Driver Intervention?
Many articulated fleets operate tractors and trailers in changing combinations. A tractor may work with several trailers during a week, whilst an individual trailer may be connected to numerous tractors during its working life.
Any additional communication process required when the combination changes therefore becomes part of everyday fleet operation.
With X-Wire, the driver simply connects the tractor and trailer using the normal process. The communication pathway is established through the existing OEM power wiring, without requiring an additional data suzie for the safety-system communication pathway.
There is also no wireless pairing process or requirement for the driver to manually select the attached trailer simply because the combination has changed.
X-Wire-enabled tractors and trailers can therefore be interchanged without adding another communication task to the normal coupling process. No additional driver input is required to establish communication between the safety equipment when trailers change.
How Does X-Wire Avoid Wireless Pairing And Reconnection Problems?
Wireless communication removes the need for a physical data connection between the tractor and trailer, but introduces a different set of considerations.
Transmitters and receivers need to establish communication with one another. Depending on the system, this may involve pairing, reconnection when combinations change and ensuring that the tractor is communicating with the correct trailer.
In busy operating environments where multiple equipped vehicles may be close together, ensuring that the tractor establishes and maintains communication with the correct trailer also has to be considered.
X-Wire does not use wireless transmission to communicate safety information between the connected vehicle sections. As a result, wireless pairing, reconnection and communication with the wrong trailer are not part of the X-Wire communication process.
How Does X-Wire Simplify Fault Finding?
Every additional cable, connector or communication component introduced into a system becomes another element that may need to be inspected when diagnosing a fault.
A separate data pathway can therefore add additional cable runs and connections to the fault-finding process.
Because X-Wire uses existing OEM power wiring for the communication pathway, it reduces the additional communication cabling and connections that need to be installed and maintained.
This simplifies fault finding by reducing the number of additional elements associated specifically with communicating safety information between the connected vehicle sections.
How Does X-Wire Help Across Interchangeable Fleets?
The challenge of trailer communication becomes more significant as the number of possible tractor and trailer combinations increases.
A communication system designed around fixed or individually paired combinations may be manageable where the same tractor and trailer remain together, but can become more difficult to operate across a highly interchangeable fleet.
X-Wire was designed with changing vehicle combinations in mind.
Safety equipment on X-Wire-enabled tractors and trailers can communicate using the existing OEM power wiring, allowing the communication architecture to remain consistent even as individual vehicle combinations change.
This can make it easier for fleets to deploy compatible safety equipment across interchangeable tractor and trailer operations without managing individual communication pairings.
How Does X-Wire Avoid Being Tied To One Safety Technology?
X-Wire is the communication architecture rather than the camera, sensor or other safety equipment itself.
X-Wire-enabled cameras, proximity sensors and other compatible safety technologies can communicate across connected sections of a vehicle or equipment using the same underlying communication architecture.
This means the communication pathway does not have to be designed around one particular camera, sensor or safety function. Different compatible safety technologies can use the same communication principle, giving fleets greater flexibility in how the architecture is used.
Does X-Wire Solve Every Trailer Communication Problem?
No communication approach is automatically the right choice for every application.
Dedicated data cabling can be entirely appropriate where vehicle combinations remain fixed or where an additional physical communication pathway does not create an operational problem. Wireless communication can also be appropriate where the application is suited to wireless operation.
X-Wire is particularly relevant where fleets need compatible safety equipment to communicate across connected or changing vehicle sections whilst reducing additional cabling, avoiding wireless pairing and minimising additional communication tasks during normal operation.
The appropriate communication architecture should therefore be selected around the vehicle, safety equipment and operational requirements of the fleet.
Final Thoughts
X-Wire was developed to solve the communication problems that arise when safety information needs to move reliably between connected or changing sections of vehicles and equipment.
In articulated tractor and trailer applications, those problems can include additional communication cabling and connections, installation time and vehicle downtime, trailer interchange, wireless pairing and reconnection, driver intervention and long-term fault finding.
By using Vehicle Safety Powerline Communication to communicate appropriately encoded safety information over existing OEM power wiring, X-Wire reduces the additional cabling required, reduces installation time, simplifies fault finding and allows compatible safety equipment to communicate across changing vehicle combinations without wireless pairing or additional communication tasks for the driver.
X-Wire is SCC’s patented implementation of Vehicle Safety Powerline Communication. By separating the communication architecture from the individual safety function, it can support compatible cameras, sensors and other safety technologies across connected vehicle sections.
