Patent Reveals How Tesla Cybertruck Armored Glass Works

The patent describes the complexity of the layers of this so-called bulletproof glass.

Tesla Cybertruck

Andrei Nedelea

By: Andrei Nedelea

May 28, 2021 at 2:21pm ET

Add InsideEVs as a preferred source in Google

Comment

Franz von Holzhausen throwing a steel ball at the Tesla Cybertruck’s side window and breaking it, despite the fact that it was supposed to deflect it, went viral for all the wrong reasons. However, even though the window failed the ball test, Tesla will still install laminated armored glass on its truck and thanks to newly released patents, we now know more about how this multi-layered glass works.

The patent states that it should be able to withstand a 2 Joule impact, with only a 10 percent chance of failure (that means it has an IK07 impact protection rating). This means it should be not fail when a 0.5 kg (1.1 pound) mass is dropped on it from 40 centimeters (15.8 inches) nine times out of ten.

It works thanks to the use of several different sheets of glass - the inner pane is chemically treated to improve its flexibility and strength and it is joint through an adhesive layer (that has energy absorption properties) to the outer pane, which is made from borosilicate (glass that has boric oxide in it) and this is supposed to make it better at resisting thermal shock.

What do you think?

View

Comments

According to Teslarati, the patent points out that Tesla’s reasoning for using this advanced type of glass mostly has to do with day to day use. The manufacturer won’t equip the Cybertruck with it because it wants occupants inside to pe protected from actual projectiles being fired at the vehicle. Instead, the idea is to prevent rock chips from happening and thus lengthening the lifespan of the glass. This is especially true of the windshield that is most vulnerable to chips and quite difficult and expensive to replace.

We’re pretty sure that one of the first thing YouTubers who have ordered a Cybertruck will do is shoot a gun at one of its windows. And the inevitable result will be the glass will break, because it’s not so much bulletproof glass as it is armored glass, and the two terms aren’t actually interchangeable. For reference, a single 9mm shot’s energy is in the hundreds of Joules, so unless glass is specifically engineered for it, we don’t really think Tesla’s Cybertruck glass will actually stop a bullet (although its thick stainless steel body just might).

More Cybertruck news

Op-Ed: Tesla Cybertruck Or F-150 Lightning, Which Will Prevail?

Tesla Cybertruck Reservations Exceed 1 Million

Sources: Teslarati, US Patent Office

We want your opinion!

What would you like to see on Insideevs.com?

Take our 3 minute survey.

- The InsideEVs team

Share this Story

GO TO COMMENTS

(

)

Got a tip for us? Email: tips@insideevs.com

View all comments ( )

Trending

GM's Next-Generation EV Platform Has 30% Less Wiring And 20% Less Battery

Can The BMW iX3 Take Down The Tesla Model Y L And Rivian R2?

GM's OnStar AI Assistant Debuts In The Cadillac Lyriq

Electrify America’s Largest EV Charging Station Is Missing One Big Thing