Mini2nut

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It’s still amazing to me that most full size pickups still use leaf springs that were originally used in carts and carriages.
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CyberMoose

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They are pretty strong and reliable, especially for semi trucks. When I was in highschool I did a coop at an industrial auto shop and we were constantly replacing leaf springs. Another huge factor for them is that they are much cheaper than something like an automatic air suspension and quite easy to replace for maintenance. Air suspension is nice, automatic/adaptive air suspension is beautiful, but they each come with added costs.
 

ldjessee

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They are pretty strong and reliable, especially for semi trucks. When I was in highschool I did a coop at an industrial auto shop and we were constantly replacing leaf springs. Another huge factor for them is that they are much cheaper than something like an automatic air suspension and quite easy to replace for maintenance. Air suspension is nice, automatic/adaptive air suspension is beautiful, but they each come with added costs.
Drum brakes are cheaper than disk brakes. They are still on some motorcycles, where smaller, lighter weight components are very much what is designed for, but a brand new motorcycle can still have a rear drum brake... never mind that it over heats and loses stopping power, never mind that it is heavier than a disk brake, and never minde a disk brake can easily have ABS added... which higher end motorcycles are coming standard with now.

Sometimes a manufacturer thinks that safety is not the first concern, that cost is the first concern.

I am glad Tesla seems to put safety higher on their priority list.
 

CyberMoose

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Drum brakes are cheaper than disk brakes. They are still on some motorcycles, where smaller, lighter weight components are very much what is designed for, but a brand new motorcycle can still have a rear drum brake... never mind that it over heats and loses stopping power, never mind that it is heavier than a disk brake, and never minde a disk brake can easily have ABS added... which higher end motorcycles are coming standard with now.

Sometimes a manufacturer thinks that safety is not the first concern, that cost is the first concern.

I am glad Tesla seems to put safety higher on their priority list.
Yes safety is definitely the highest priority for most companies I would say. If something can meet regulations to be considered safe, I think most companies would strive for that. While yes more safety is better, a company still needs to be profitable.

Drum brakes and leaf springs aren't unsafe, especially when you are driving properly. Just like a racecar style seatbelt would offer more protection but would also be more expensive in cars.
 

Crissa

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The only place a drum brake is allowed is the rear wheel of a motorcycle... Where you don't use extra braking and you actually want less stopping power in an emergency.

Overheating isn't an issue in a motorcycle rear brake.

Most no longer do because the drum brake would be a special part now,

-Crissa
 


Ryan95738

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The only place a drum brake is allowed is the rear wheel of a motorcycle... Where you don't use extra braking and you actually want less stopping power in an emergency.

Overheating isn't an issue in a motorcycle rear brake.

Most no longer do because the drum brake would be a special part now,

-Crissa
I really liked the drum brakes in my Toyota, and I wasn't even that old
 

Crissa

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I really liked the drum brakes in my Toyota, and I wasn't even that old
I had drum brakes on my last new car's rear, and they sucked 'cause they would fuse together and needed to be replaced as a unit. Glad they're gone.

-Crissa
 
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ldjessee

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The only thing good about drum brakes for me is that I know I could make a drum brake from scratch. I am sure I could not do that for a diskbrake.
 


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Great video, thanks for the thoughtful insight.

I tend to go very simple here: Put a suspension under the CT that actively checks dozens of parameters, millions of times per second and makes incremental changes to constantly better the performance of the box on top of it, and that would be beyond game changing for any truck owner. peace
 

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I’ve been pretty heads-up on here for sake of a Cybertruck to rule them all. I am sold on the design with a deposit on a tri-motor. Its not a unicorn. Air suspension isn’t new nor independent suspension - dynamic dampening neither.

Three things about independent air suspension:

Military air suspension experienced increased “ rollovers” early in its program. Hopefully Tesla has that contained by dynamic software.

Range Rover air bags leak. Bits of crud, rock and debris puncture bags. Cost $1500per to R&R- too expensive. Tesla engineering need step-up the state of the art to add durability.

Independent suspension is “frigin’ amazing”. My 1967 BMW 1600ti introduced it and my 2002tii maxed it. Cybertruck dynamic software control could take it to the next level. Suburu independent AWD shames traditional 4x4’s in mud, sand, climbs and water cross already. Tesla, you allude, are expanding to fringe use-cases of rock crawling, Baja desert and towing. Like the saying goes “ pick two”!

Leave Jeep to the rocks and tackle the Raptor/F-150 series. Subaru is quietly watching its owners take-on the “ big boy” naysayers and their toys. Alot of boys leave swearing. I owned two Subaru’s. Shift on the fly 4 wheel drive in 1976 was the bomb. Were it not for the motor needing a rebuild every 72k, I’d still be driving one.

Desert conditions are systemically challenging. Moving air at high frequency cycles both asynchronous and harmonically at all four corners will be a feat of engineering. Temperatures change volume so mapping changes incrementally. I’ve blown more tires in the desert on hot asphalt. Hoping Cybertruck can exchange air to keep tires safe.

Towing situations are well known and Tesla engineers have already cracked them on independent 4 axels. So I am thrilled to take this plunge with Elon et. al. at Tesla. It’s that sofware defines the cyber in Cybertruck, but welcome any surprise Elon has in store.

Let‘s get this show on the road!
 

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I’ve been pretty heads-up on here for sake of a Cybertruck to rule them all. I am sold on the design with a deposit on a tri-motor. Its not a unicorn. Air suspension isn’t new nor independent suspension - dynamic dampening neither.

Three things about independent air suspension:

Military air suspension experienced increased “ rollovers” early in its program. Hopefully Tesla has that contained by dynamic software.

Range Rover air bags leak. Bits of crud, rock and debris puncture bags. Cost $1500per to R&R- too expensive. Tesla engineering need step-up the state of the art to add durability.

Independent suspension is “frigin’ amazing”. My 1967 BMW 1600ti introduced it and my 2002tii maxed it. Cybertruck dynamic software control could take it to the next level. Suburu independent AWD shames traditional 4x4’s in mud, sand, climbs and water cross already. Tesla, you allude, are expanding to fringe use-cases of rock crawling, Baja desert and towing. Like the saying goes “ pick two”!

Leave Jeep to the rocks and tackle the Raptor/F-150 series. Subaru is quietly watching its owners take-on the “ big boy” naysayers and their toys. Alot of boys leave swearing. I owned two Subaru’s. Shift on the fly 4 wheel drive in 1976 was the bomb. Were it not for the motor needing a rebuild every 72k, I’d still be driving one.

Desert conditions are systemically challenging. Moving air at high frequency cycles both asynchronous and harmonically at all four corners will be a feat of engineering. Temperatures change volume so mapping changes incrementally. I’ve blown more tires in the desert on hot asphalt. Hoping Cybertruck can exchange air to keep tires safe.

Towing situations are well known and Tesla engineers have already cracked them on independent 4 axels. So I am thrilled to take this plunge with Elon et. al. at Tesla. It’s that sofware defines the cyber in Cybertruck, but welcome any surprise Elon has in store.

Let‘s get this show on the road!
I don't think this is air bag suspension. Somewhere i saw a picture of it looked like a shock absorber with hoses coming out of it.
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