Braking power

[Cybertruck2024]

Has anyone here driven a Lightning and a AWD CT? Lightning is a bit more powerful but comparable, the weight is also similar. I'd love to hear how braking compares between the two vehicles. FWIW, my least favorite thing moving between my M3P and my Lightning is the difference of the brakes. The Lightning just feels much better, especially the regen.

There are also real stopping tests that someone should be able to do to quickly take away the subjective nature of all of this talk.

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[CyberJet]

Cybertruck did worse than Hummer ev in car wow brake test despite weighing lesser than Hummer ev. Might be due to cybertruck tires.

 

[swinefeaster]

i finally got a chance to test it out. Unfortunately the roads were a bit wet. I locked up the brakes a few times on an empty road and it stopped pretty damn well. Abs kicked in too and it didnt slide at all. No complaints here.

 

[Carmino]

I definitely noticed some break fade during a road trip after driving through some mountains. More so than my Model S.

 

[HaulingAss]

I definitely noticed some break fade during a road trip after driving through some mountains. More so than my Model S.

Huh? Didn't regen braking provide all the braking you needed in the mountains? How could the brakes fade? What was your total weight?

 

[Carmino]

Huh? Didn't regen braking provide all the braking you needed in the mountains? How could the brakes fade? What was your total weight?

Not down the mountains, but afterwards. Probably a 5 hour drive total. About 400lbs in the back.

 

[SentinelOne]

From the sounds of it the brakes are a bit underspec'd or otherwise have some challenges, loaded or no and that re-gen has some bugs / limitations vs. traditional teslas...hopefully im wrong, but as a pending beast owner and trailer tower hope they get it sorted! !

 

[HaulingAss]

Not down the mountains, but afterwards. Probably a 5 hour drive total. About 400lbs in the back.

Heat related brake fade makes zero sense, unless you were driving like you were on a track, with a lot of heavy accelerations followed immediately by friction braking. Most Cybertruck drivers report there is no need to even use a significant amount of friction braking in almost all use cases. Electromagnetic braking is really mind-blowingly good in so many ways, especially by letting the friction brakes cool down between uses.

Even if you do one or two emergency stops in a row, the brakes will dissipate that heat relatively quickly and be ready for more emergency braking within minutes.

 

[Carmino]

Heat related brake fade makes zero sense, unless you were driving like you were on a track, with a lot of heavy accelerations followed immediately by friction braking. Most Cybertruck drivers report there is no need to even use a significant amount of friction braking in almost all use cases. Electromagnetic braking is really mind-blowingly good in so many ways, especially by letting the friction brakes cool down between uses.

Even if you do one or two emergency stops in a row, the brakes will dissipate that heat relatively quickly and be ready for more emergency braking within minutes.

I posted my experience here since I'm not the only one who experienced something similar. I know what happened on my drive. Respectfully, you don't need to come jump to defend Tesla any time someone posts a real experience that may not be a 100% glowing review of Tesla.

 

[HaulingAss]

I posted my experience here since I'm not the only one who experienced something similar. I know what happened on my drive. Respectfully, you don't need to come jump to defend Tesla any time someone posts a real experience that may not be a 100% glowing review of Tesla.

I'm not "jumping to defend Tesla", don't be ridiculous, I'm saying it doesn't make sense that one would need to use the friction brakes enough for them to get heat related brake fade in normal driving with only 400 lbs. in the bed. It's non-sensical that brakes of that size would be overheating except under extreme driving. I've seen a number of Cybertruck owners report they don't even need to touch the brakes in normal driving.

 

[Carmino]

I'm not "jumping to defend Tesla", don't be ridiculous, I'm saying it doesn't make sense that one would need to use the friction brakes enough for them to get heat related brake fade in normal driving with only 400 lbs. in the bed. It's non-sensical that brakes of that size would be overheating except under extreme driving. I've seen a number of Cybertruck owners report they don't even need to touch the brakes in normal driving.

Again, I know what happened in my truck. Not once did I solely attribute it to heat, but it happened. Not here to argue back and forth about what I experienced and you weren’t there for. Take care.

 

[HaulingAss]

I definitely noticed some break fade during a road trip after driving through some mountains. More so than my Model S.

By definition the term "brake fade" is heat related. There is no other way brakes can experience "brake fade". So either you are using the term "brake fade" improperly, or you were talking about heat related brake fade.

Which is it? How were your brakes fading if not from excessive heat buildup? In other words, what the hell are you talking about?

 

[Crissa]

By definition the term "brake fade" is heat related. There is no other way brakes can experience "brake fade". So either you are using the term "brake fade" improperly, or you were talking about heat related brake fade.

Which is it? How were your brakes fading if not from excessive heat buildup? In other words, what the hell are you talking about?

You can have brake fade from regen fading.
You can have brake fade from pump failure.
You can have brake fade from hydraulic failure.

Brake fade is where breaking power is compromised somehow.

-Crissa

 

[CyberGus]

There are many potential causes of a reduction in braking effectiveness, but the expression "brake fade" is very specific term when discussing vehicle performance.

"Brake fade is caused by a buildup of heat in the braking surfaces and the subsequent changes and reactions in the brake system components and can be experienced with both drum brakes and disc brakes."

https://en.wikipedia.org/wiki/Brake_fade

 

[Crissa]

There are many potential causes of a reduction in braking effectiveness, but the expression "brake fade" is very specific term...

...Overly specific narrow definitions do not match how people use language.

Anyone not an expert experiencing 'brake fade' will only really know braking power was reduced, and wouldn't know the cause. In fact, assuming one cause for a narrow definition results in bad diagnostics, if there was another cause confounding performance.

-Crissa

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