What is Dual CAN Bus Interface?
For the development of new automotive technology and projects, data is becoming ever more essential. Managing data
flow is a big part of your development challenge, and the CAN bus has become the standard for data flow between
the complex devices and systems you find in modern vehicles.
With two connections, the Dual CAN interface can connect to two networks at once, doubling bandwidth for essential
safety, monitoring and control solutions.
What Do We Use the Dual CAN Interface for?
As vehicles become more complex, with a range of highly sophisticated systems needing to share data, the volume of
those communications continues to increase, powering safety systems, intelligent driver aids and more. By leveraging
two distinct CAN networks, data volume is increased, allowing for the rapid collection of vehicle data from multiple
systems at once, helping you with both the driving experience itself as well as diagnostic and monitoring solutions.
Dual CAN Interface Use in the Real World
What all that means for you as a driver can be seen in this real-world example. A telematics service provider is
looking to bring new solutions for fleet managers that
help manage multiple vehicles with detailed data access.
Integrating an AutoPi device , with its Dual CAN
Interface, into each vehicle means that the telematics service can
then access multiple vehicle systems at once in real-time, while it is being driven. It can show comprehensive data
about vehicle health , such as various engine
parameters, fuel consumption and so on, and also continually collect data on location, speed and other driver behavior data at the same time.
This powers fleet management solutions that let
you make informed choices about predictive
maintenance , helping you to optimize fuel usage and facilitate driver training to maintain operational
safety, all from one single device.
You can find out more about the AutoPi TMU CM4 's
technical specifications here .
How Fast is the Dual CAN Bus?
If you are using the classic CAN network, then it operates at 1 Mbps. However, if you have vehicles equipped with
the the more modern CAN FD (Flexible-Data-Rate) networks ,
speeds of 5 Mbps and even higher are possible allowing for much faster data transmission .
A Dual CAN interface supports both, and can maintain these speeds across both networks it is connected to, providing
exceptionally fast, reliable data communications.
The Advantages of the Dual CAN Interface
While speed is important, and the Dual CAN interface delivers it, that is not the only benefit you can get from
using the dual design. This is especially true in the automotive environment, and if you are developing for
telematics systems , the Dual CAN interface
can offer you a significant edge.
Without the Dual CAN Bus Interface, our vehicles would look very different, and vehicle telematics would not
function as we know it today.
Enhanced Connectivity — With access to two CAN networks, you can access more data and develop
deeper integration with more systems, giving greater scope for new innovations in control and monitoring.
Increased data Throughput — While each network is limited to its approved transmission rates, a
device with a Dual CAN interface can access two separate networks at once, doubling the throughout it can
use.
System Isolation — You can divide your critical and non-critical systems onto separate networks
for safety, and still access data from them both at the same time.
Versatility — Being able to interface with two different networks means that development of
more complex telematics applications is possible, ready to support the changing needs of drivers and owners.
Simplified Wiring — Condensing access to a single device simplifies the wiring harness, which
reduces the space needed, but also reduces the number of potential failure points too for more reliable
operations.
Conclusion
For anyone developing projects within the field of telematics, the Dual CAN interface is an extremely powerful tool
that opens up endless new possibilities thanks to its higher bandwidth, greater reach with vehicle systems and
faster responses to achieve the tasks you are looking to complete.
With vehicles becoming ever more complex, interconnected and data driven, the Dual CAN interface is supporting
advances in automotive technology like V2X and
becoming integral to the future of transport as a result.
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