Chipmakers to carmakers: Time to get out of the semiconductor Stone Age

Started by Morris Minor, September 18, 2021, 06:05:57 AM

Morris Minor

This company, 3IS, tears down & analyzes automotive electrical systems. They looked at the ID4, Model Y, & Mach E.
Talking on Munro's channel:

https://youtu.be/ZRkm6-bBk4U
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r0tor

Quote from: Laconian on September 18, 2021, 09:31:52 PM
What's T in this case? What's the size of the sampling window?

dT is the sampling window... Usually configurable by the controls engineer.

In that equation Ti and Td would be the integral and proportional scalars
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GoCougs

Quote from: r0tor on September 19, 2021, 08:04:15 AM
dT is the sampling window... Usually configurable by the controls engineer.

In that equation Ti and Td would be the integral and proportional scalars

What about the proportional term (i.e., w/out dt)?

r0tor

Quote from: GoCougs on September 19, 2021, 11:08:58 AM
What about the proportional term (i.e., w/out dt)?

I thought that was pretty self explanatory from the equation...
2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

GoCougs


Morris Minor

The automakers' reluctance to move on to up-to-date designs & is highly emblematic of underlying weakness. They want to stick with old technology, continuity, the things they know, the path of least resistance.
Some of these corporations are coming to the end of their natural life cycles.
The railroads were at their most advanced, impressive and glorious in the 1930s. Nobody knew it, but they had already begun to die.
⏤  '10 G37 | '21 CX-5 GT Reserve  ⏤
''Simplicity is Complexity Resolved'' - Constantin Brâncuși

r0tor

Seems like Tesla took a different direction with the model 3 and have most of all the body control stuff coming out of only 3 modules

https://jalopnik.com/how-tesla-made-the-model-3-better-than-the-model-s-1828052113
2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

AutobahnSHO

Quote from: r0tor on September 21, 2021, 09:53:14 AM
Seems like Tesla took a different direction with the model 3 and have most of all the body control stuff coming out of only 3 modules

https://jalopnik.com/how-tesla-made-the-model-3-better-than-the-model-s-1828052113

Yup, trading hardware headaches for software headaches. And as stuff gets tied into the interwebz, look for more hackz
Will

MrH

Quote from: Morris Minor on September 21, 2021, 09:37:07 AM
The automakers' reluctance to move on to up-to-date designs & is highly emblematic of underlying weakness. They want to stick with old technology, continuity, the things they know, the path of least resistance.
Some of these corporations are coming to the end of their natural life cycles.
The railroads were at their most advanced, impressive and glorious in the 1930s. Nobody knew it, but they had already begun to die.

:confused:

There's a validation cost and time associated with changing architectures like this.  Besides more capacity flexibility at the supplier, I'm not sure what benefit you're really missing out on.

You seem to think less is better, and by not going to the latest tech, they're dinosaurs.  But as an end customer, who cares what the underlying architecture for your seat controls?  Does the seat work reliably for a long time?  Ok, perfect.

I agree, some of what Tesla does pushes the industry in certain ways, but it's not always a good thing.  Tesla's lack of validation protocols gets you more simple chip architecture.  It also gets you snapping control arms, fires, melting infotainment screens, etc.  As always: Tesla's competitive advantage isn't technology itself, it's risk tolerance.
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r0tor

Quote from: MrH on September 22, 2021, 07:03:17 AM
:confused:

There's a validation cost and time associated with changing architectures like this.  Besides more capacity flexibility at the supplier, I'm not sure what benefit you're really missing out on.

You seem to think less is better, and by not going to the latest tech, they're dinosaurs.  But as an end customer, who cares what the underlying architecture for your seat controls?  Does the seat work reliably for a long time?  Ok, perfect.

I agree, some of what Tesla does pushes the industry in certain ways, but it's not always a good thing.  Tesla's lack of validation protocols gets you more simple chip architecture.  It also gets you snapping control arms, fires, melting infotainment screens, etc.  As always: Tesla's competitive advantage isn't technology itself, it's risk tolerance.

The problem is currently you have tons of production on hold for what in many cases is a simple module who's function could easily be handled by the BCM.... and then future support for all these modules (most of which are VIN locked) to keep cars on the road.
2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

MrH

You act as if they would be immune to chip shortages right now if they were on a newer architecture.  That isn't true.  The service comment is a non-issue.  They aren't wear parts and don't need replacing because they went through proper validation :thumbsup:
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r0tor

Quote from: MrH on September 22, 2021, 08:39:56 AM
You act as if they would be immune to chip shortages right now if they were on a newer architecture.  That isn't true.  The service comment is a non-issue.  They aren't wear parts and don't need replacing because they went through proper validation :thumbsup:

Modules don't fail?  Really?
2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

MrH

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r0tor

2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

Morris Minor

Margins on cars you can build quickly, cheaply, and deliver to customers in exchange for cash... are higher than those on complex assemblies that sit incomplete and unsold on back lots. Having to stop production is a competitive disadvantage.
⏤  '10 G37 | '21 CX-5 GT Reserve  ⏤
''Simplicity is Complexity Resolved'' - Constantin Brâncuși

MrH

Quote from: Morris Minor on September 22, 2021, 10:37:22 AM
Margins on cars you can build quickly, cheaply, and deliver to customers in exchange for cash... are higher than those on complex assemblies that sit incomplete and unsold on back lots. Having to stop production is a competitive disadvantage.

Are you telling me your gut instincts in cost reduction is more accurate than the OEMs with hundreds of cost engineers evaluating the same thing?
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SJ_GTI

Quote from: MrH on September 22, 2021, 12:08:17 PM
Are you telling me your gut instincts in cost reduction is more accurate than the OEMs with hundreds of cost engineers evaluating the same thing?

CarSPIN: Yes!

Morris Minor

Quote from: MrH on September 22, 2021, 12:08:17 PM
Are you telling me your gut instincts in cost reduction is more accurate than the OEMs with hundreds of cost engineers evaluating the same thing?
The OEMs have cost-engineered themselves into production halts. They don't think.
⏤  '10 G37 | '21 CX-5 GT Reserve  ⏤
''Simplicity is Complexity Resolved'' - Constantin Brâncuși

Soup DeVille

Quote from: Morris Minor on September 22, 2021, 03:12:07 PM
The OEMs have cost-engineered themselves into production halts. They don't think.

Production halts right now are effecting multiple industries. You can't get fucking Lunchables or lemonade half the time. Is it any wonder that a complicated item like an automobile has trouble?
Maybe we need to start off small. I mean, they don't let you fuck the glumpers at Glumpees without a level 4 FuckPass, do they?

1975 Honda CB750, 1986 Rebel Rascal (sailing dinghy), 2015 Mini Cooper, 2020 Winnebago 31H (E450), 2021 Toyota 4Runner, 2022 Lincoln Aviator

MX793

Quote from: Morris Minor on September 22, 2021, 03:12:07 PM
The OEMs have cost-engineered themselves into production halts. They don't think.

The circumstances of today are highly abnormal.  Under what we formerly understood as "normal", how the automotive industry operated was the most cost effective way to do things.  No one would have foreseen global shortages of this nature.
Needs more Jiggawatts

2016 Ford Mustang GTPP / 2011 Toyota Rav4 Base AWD / 2014 Kawasaki Ninja 1000 ABS
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MrH

Quote from: Morris Minor on September 22, 2021, 03:12:07 PM
The OEMs have cost-engineered themselves into production halts. They don't think.

It takes 4000+ parts to make a car.  It's amazing they get any car made ever.

Quote from: Soup DeVille on September 22, 2021, 03:24:55 PM
Production halts right now are effecting multiple industries. You can't get fucking Lunchables or lemonade half the time. Is it any wonder that a complicated item like an automobile has trouble?

:lol:

It's probably the most complicated assembly out there.  Auto supply chain demolishes most industries in terms of cost efficiency and effectiveness.
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shp4man

Be nice if we hadn't offshored everything to make a damned addition 10 cents in profits. Ahh, well. Trump tried I guess.

CaminoRacer

I buy truckloads of plastic bottles, among other things. Plastic industry is all around the gulf and I get an email every 6 weeks with some excuse for raising prices due to the Texas winter storm, hurricane, blahblahblah. Domestic industry has plenty of their own problems and delays. The plastic industry needs to move away from the damn gulf
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MrH

Quote from: CaminoRacer on September 22, 2021, 08:41:00 PM
I buy truckloads of plastic bottles, among other things. Plastic industry is all around the gulf and I get an email every 6 weeks with some excuse for raising prices due to the Texas winter storm, hurricane, blahblahblah. Domestic industry has plenty of their own problems and delays. The plastic industry needs to move away from the damn gulf

That's where the oil is.  All petroleum based things are struggling.  Been a big shortage in polyurethane foams too.

We've been having a lot of pharma material shortages too.  Capacity and validation of secondary suppliers is insanely expensive and timely.  It's so hard to capacity plan raw materials.  Part of it is because they all suck at supply chain :lol:
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MrH

It's a shame Biden got confused you shutdown the wrong pipeline.
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