Breaking Down the Cybertruck’s 48-Volt System: What’s Powered and Why

Munro & 3IS have partnered to deliver the most comprehensive Tesla Cybertruck Electronics Architecture Reports available in the industry. These reports are now available and come in two options: a complete Electronics Architecture Report, which covers every device with a wire or connector attached, and subsystem-specific reports for those interested in particular systems or devices.

Our in-depth analysis explores the integration of 48V systems in the Cybertruck, including their applications, benefits, and design challenges. Beyond the 48V system, we also examine the other power level networks, such as 12V, 16V, and 800V. Our reports detail how these voltage levels are converted and distributed across various system peripherals.

In addition, we offer a comprehensive breakdown of Tesla’s "Etherloop" network, providing insight into what the protocol controls—and, perhaps more importantly, what it doesn’t.

Munro Live is a YouTube channel that features Sandy Munro and other engineers from Munro & Associates. Munro is an engineering consulting firm and a world leader in reverse engineering, costing, and teardown benchmarking.

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#tesla #cybertruck #48v

[a.noumen]

lol, to write “hi sandy” on circuit board is just nuts :)

[djand]

More of this type of content please! Excellent discussion.

[carthick]

When was the last time an OEM gave a nod to a benchmarking company. Tesla and Munro guys rock!! Thanks Dale. We engineers watching these videos found one more interesting guest!!

[galactictomato]

This is my favorite type of Munro Live content. Thanks guys.

[stevenestrada]

I really enjoyed Dale, dude has the perfect personality for the explanation when doing the deep dive on the nitty-gritty of the technicals. Would like to see more of Dale in the future good job, Dale.

[TechScottBrown]

FYI, the Air Pump is a powered by a 48v brushed motor. Love this content, I just took delivery of a beast and I’m learning all about it!

[kellynkarr]

This was great. As a technician, I am excited for the future. It is really great to have companies working on transparency for us!

[MbT]

Excellent presentation. Thank you Tom and Dale. Agree more Tom and Dale.

[budgetaudiophilelife-long]

🤗THANKS TOM, DALE AND MUNRO FOR THE UPDATES🧐🔋🔋🔋

[jamesbruce]

In a video with the tesla engineers, they said that the AC and other HV accessories had to be built to work on 400V AND 800V because the battery can be connected 400V 0r 800V depending on the capabilities of the DC fast charger it is connected to. Can't stop the HVAC just because it's an 800V system but while charging on a Tesla 400VDC charger, the charge port only sees 400V.

[mikeselectricstuff]

I suspect a significant reason high voltages weren't used in the past is that it's difficult to make filament lamps at higher voltages that resist the vibration in a car environment

[MooseOnEarth]

Finally someone a little more knowledgable in electronics, that partnership with 3is and Intrepid already pays off. But some of those 48V mild-hybrids have quite a higher number of 48V actuators: for stabilization control at the stabilizer actuators (Audi Q7, Porsche Panamera), small oil pumps and water pumps (Mercedes), or the actuator on a compressor shaft (Audi SQ7, a non hybrid, yet with a 48V sub-net). In general, Audi Q7 4M was the car that introduced a number of 48V components already in 2015 and on.

The list of 48V components in Cybertruck is:
2x radiator fans (BLDC),
1x HVAC blower (BLDC),
power steering actuators (front 2x, rear: 1x),
oil pumps at the drive units (1 oil pump per traction motor),
4x window regulator motors (BLDC) (Brose),
1x wiper motor,
1x accessory power feed to the frunk (400W),
1x accessory power feed to the roof (400W),
3x domain controller ECUs (Left Front Controller, Right Front Controller, Rear Body Controller),
1x power conversion system (PCS 2),
1x 48-volt lithium-ion battery.

I am not sure about the headlights and tail lights, whether they are supplied 48V or 12V/16V.

To mention a few components that draw notable power but that Tesla kept at 12/16V (could have been converted to 48V, but were not):
air compressor for suspension, (that is still 12/16V for sure, CareSoft already analyzed that)
Autopilot ECU,
MCU,
Hydraulic Control Unit,
Trailer Control Module.

[bohenriksson]

When two old geezers pour out some wiring and boards you know it’s going to be good 😊!

[AlexBenfica]

This is very valuable content. A 20m video talking about the window drive motor would be great.

[nadgerz]

I want that hour of talking about the window lift motor, Dale!

[rickrutledge]

I really like the info given in this video. More please!

[WarrenLacefield]

This was a great video. And so is the 48v system. But, ha, there was/is so much more they could have talked about. Many videos worth, I guess! The reason, I've understood, for separating the controllers is to avoid a single fault failure and wiring cries-crossing the body frame. (Guess I'd have to buy the report to be sure. 🙂). Thank you, Munro Associates. We need a Part 2 & 3 & more.

[roadmound]

Excellent work by Sandi Munro's team.
Tesla is sweeping all the legacy automakers on everything... On everything... Batteries, Manufacturing of the body, Power & Control of vehicle's hardware-components, Communication Network... All for the sake of making the vehicle more efficient and saving cost... BUT in an INTELLIGENT WAY.

[Doctorbasss]

Look like the BABY BLUE color is a standard for 48V not only for Tesla but also for Anderson connector like the SB serie for instance.

[alandalgety]

Great episode please make a follow up episode. Deeper dive great interest in all this rocket science truck.