WADE MODE will let Cybertruck drive through water by raising ride height and pressurizing battery 🤿 💦

[JBee]

No, it doesn't take multiple minutes. This is why the 'stuck to the table' cold glass trick works at all.

-Crissa

That hasn't got anything to do with thermal mass.

Do the math.

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[Crissa]

That hasn't got anything to do with thermal mass.

Do the math.

That literally is about thermal mass. That's how the trick works.

-Crissa

 

[tmeyer3]

All y'all so argumentative over stuff no one but Tesla engineers are aware of yet

 

[JBee]

That literally is about thermal mass. That's how the trick works.

-Crissa

I'm not talking about your "trick".
I'm talking about the thermal mass of the battery.

You can't create enough temperature difference in a short amount of time to make the battery "suck in air, and with it water". This is stupid.

Let me rephrase the question then:
1) how cold is the water
2) how warm is the pack
3) how warm is the ambient air
4) what is the air volume of the pack
5) what is the thermal mass of the pack
6) is the pack being used, and generating heat
7) is the pack connected or insulated to the outside, if so what R value
8) what is the exposed surface area of the pack to the water

With that we can work out what the air displacement would be and how long it would take.
Go forth and math.

 

[JBee]

All y'all so argumentative over stuff no one but Tesla engineers are aware of yet

Not aware of yet because it only exists in fantasy land, where no engineers roam.

 

[tmeyer3]

Not aware of yet because it only exists in fantasy land, where no engineers roam.

Who knows! It does say something about the pack doing something in "Wade mode". And now we have folks fighting over less than a sentence

 

[JBee]

Who knows! It does say something about the pack doing something in "Wade mode". And now we have folks fighting over less than a sentence

We've known this for a while, the pack is being pressurized to stop water ingress. That's it.
It has nothing to do with "cold air sucking water in", as this can be dealt with by the existing breather hose on the pack. It's just in case the seals let water in, which in turn could create corrosion etc in the pack. An actively pumped volume uses positive pressure to push air out of a leak, which means no water can come in. Our expedition vehicles did the same to keep the dust out of the cabin. It's quite common in dusty environments. I'd do the same.

Even some ICE etc have breathers on diffs and gearboxes, but they are cooled down much faster, because of the small thermal mass, and large surface area. The battery pack is a huge volume in comparison with only a small exposed area. But it has a large seal, which is why they keep it pressurized just in case.

 

[tmeyer3]

We've known this for a while, the pack is being pressurized to stop water ingress. That's it.
It has nothing to do with "cold air sucking water in", as this can be dealt with by the existing breather hose on the pack. It's just in case the seals let water in, which in turn could create corrosion etc in the pack. An actively pumped volume uses positive pressure to push air out of a leak, which means no water can come in. Our expedition vehicles did the same to keep the dust out of the cabin. It's quite common in dusty environments. I'd do the same.

Even some ICE etc have breathers on diffs and gearboxes, but they are cooled down much faster, because of the small thermal mass, and large surface area. The battery pack is a huge volume in comparison with only a small exposed area. But it has a large seal, which is why they keep it pressurized just in case.

Cool

 

[jayrhacker]

Even some ICE etc have breathers on diffs and gearboxes, but they are cooled down much faster, because of the small thermal mass, and large surface area. The battery pack is a huge volume in comparison with only a small exposed area. But it has a large seal, which is why they keep it pressurized just in case.

One of the things you have to do to setup a 4X4 for deep wading is extending the breathers for the diffs, transfer case, and transmission up above your target depth; that and a snorkel to move the air intake up.

For the Cybertruck, since the compressor is already running to keep the air suspension at max height, running an airline into the battery pack is a straightforward way to achieve this feature for the cost of a length of air-hose, two air ports, and a few assembly steps. If you wanted to get fancy you could add a valve, but I don't see any harm in pressurizing the pack when the suspension is adjusting up.

 

[jayrhacker]

If pontoons also are added and pressurized, boat mode achieved

Three Words: Paddle Wheel Covers

 

[HTownQ]

What's the propulsion mechanism gonna be like?

Wheel Cover optioned out with small flaps.

 

[PATEL]

From SawyerMerritt:

"So this is cool. The Cybertruck's Wade Mode apparently uses its air suspension tank to seal its battery during river crossings.

In the Cybertruck parts catalog, there is an entry called "Scuba Pack Airline," which goes from the air tank to the battery pack. In addition, a "scuba valve block assembly" lets compressed air in the line to increase outward pressure and prevent water from entering the battery pack during river crossings and the like."

 

[dodgy-truck]

Anyone know if "boat mode" is just for wading through water or also to be used when there are heavy rains and the vehicle is kicking up water into the underside.

Is the battery compartment water proof enough for that? Curious where the line is drawn between regular usage in rain and snow versus needing boat mode.

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