I expect you know that the Tesla Cybertruck has a mostly 48 volt electrical system. Going from 12 volts to 48 volts can cut wire diameters (and weight) by 75% but there is a lot more going on.
The Limiting Factor offers an excellent video that will help you understand what is going on, why it is a major innovation and why other vehicle manufacturers have not made a similar change and, well, really can’t.
Bosch introduced CANbus back in 1986 as a “network” for vehicles. By network I mean both the hardware and the software protocols to make it all work. This became standardized in 1993 and there have been some updates over the years. Starting with the Cybertruck, Tesla has introduced an “etherloop” network to replace the CANbus. In the video you will learn about all the advantages of this new protocol.
You will also learn that most vehicle vendors purchase controllers from external suppliers. Tesla, on the other hand, has continued to increase its own controller development. By having control over both the hardware and software, Tesla can move to a new network architecture. The change is not just for sake of change — going to Etherloop has lots of advantages.
