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CT scans of BYD car parts

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Re: CT scans of BYD car parts

#341

Post by weberer »

mbeavitt wrote: post #213
veza wrote: post #200

Oh, I love the 2 sides of HN... Here everybody's ready to buy a BYD and even move to China, due to the sheer quality of the product (for the money) and the integrity of the people, totally forgetting about the 'social credit system' and the data that these cars might be sending or being exposed to having the car remotely disabled. Not to mention the repairability... Just a few days ago there was a popular post taking…

I really don’t understand why this social credit concept has become so widespread. It does sort of exist but not in the big government breathing down your neck kind of way. Here’s an example - you can rent e-bikes and power banks at low cost, they are everywhere. If you don’t return an e-bike or power bank after using it, not only will that company charge you, but you’ll likely get blacklisted from renting more, even…

That sounds awful. What if you have a dispute and they're the ones in the wrong? You can no longer just take your business elsewhere.

Re: CT scans of BYD car parts

#342

Post by keybored »

binary132 wrote: post #340
keybored wrote: post #193

Earlier quoted context omitted.

It’s a culture of learned helplessness, which you demonstrate.

Excuse me? Describing people’s motives and reasoning has no bearing on my own. I’ve repaired multiple components on my own vehicle. Your mentality on the other hand is entirely typical of the reason I avoided this cesspool of a website for many years.

Weird. Reading your comment, I had similar adjectives about HN posting.

Learned helplessness (according to Wikipedia) is about being convinced by your environment that you are incompetent. Part of the feedback loop of the culture is not just the helpless and their helplessnes but the factors that teach them that they are.

Re: CT scans of BYD car parts

#343

Post by weberer »

tiagod wrote: post #209
veza wrote: post #200

Oh, I love the 2 sides of HN... Here everybody's ready to buy a BYD and even move to China, due to the sheer quality of the product (for the money) and the integrity of the people, totally forgetting about the 'social credit system' and the data that these cars might be sending or being exposed to having the car remotely disabled. Not to mention the repairability... Just a few days ago there was a popular post taking…

Isn't the social credit system mostly a credit score, similar to the one implemented in the United States? As someone living in a European country without such a thing, I also find that one pretty dystopian. About the data sending, wasn't there a quite recent incident where an American car manufacturer was leaking the real-time position of all their clients' vehicles? Aren't US telecoms selling position data of their…

What country do you live in? They probably have credit records. Here in Finland you definitely do. They don't break it down into a single score, but lenders can see how many debts you've defaulted on in the past.

https://www.oikeuspalveluvirasto.fi/en/financial-and-debt-co...

Re: CT scans of BYD car parts

#344

Post by lowbloodsugar »

numpad0 wrote: post #42
lowbloodsugar wrote: post #12

Earlier quoted context omitted.

Most of those stories are 1/ crashes and 2/ hybrids. Again, with rare exception, manufacturers are just making gas cars with EV power trains. Tesla and BYD are making next gen transport. Are you old enough to remember when TVs broke so often that TV Repairman was a job? One day we will look back on car mechanics the same way. I do remember the visceral joy of trying to keep a supercharged Camaro on the track, but tho…

> manufacturers are just making gas cars with EV power trains. Tesla and BYD are making next gen transport. From what I see online, Teslas, especially MS/MX, are actually quite like an EV-swapped Toyota than anything futuristic. A lot about their cars(exception being CT and Semi) are ICE-mass-market-car coded. They're car equivalents of ARM PCs in ATX form factor like NVIDIA's DGX Station, opposite to the likes of tr…

In what way?

Re: CT scans of BYD car parts

#345

Post by cyberax »

joe_mamba wrote: post #178
cyberax wrote: post #85

Earlier quoted context omitted.

There is nothing terribly complicated there. It's just an AC motor ("brushless DC") with a classic 3-phase inverter and a resolver. There are plenty of companies that make controllers for this kind of setup. Granted, they are typically not powerful enough for SOTA drivetrains, but it's a question of time. Power electronics will need to fit into the footprint of the e-axle. Or maybe you'll need to manufacture a new ho…

>Both are easily doable for small companies. As cheap as the mass produced ones with the economies of scale? I seriously doubt it. You're talking about a car ECU. Go see how much ECUs cost that don't deal with power electronics. >Again, an independent manufacturer can easily make them. Yeah but again, for how much? You can make anything if money is no option. But if cost is too high people will just scrap the car and…

> As cheap as the mass produced ones with the economies of scale?

Of course not. This has _never_ been the case. You get spare parts from manufacturers initially, usually at a higher price (buying new bikes and parting them has been a thing for decades). When manufacturers stop producing spare parts, you can cannibalize existing cars that are taken off the road for other reasons (crashes, severe cosmetic damage, etc.).

This is enough to last you at least 2 decades. And after that time, maintaining a car makes sense only for sentimental reasons. If there's demand, there'll be supply. There are companies that are _still_ making new parts for Trabants!

> You're talking about a car ECU. Go see how much ECUs cost that don't deal with power electronics.

You don't have any idea what you're talking about, do you? ECUs on EVs do NOT deal with high voltage directly. They are just regular computers that run off 12V and output control signals over CAN lines, just like on regular gas cars.

The drivetrain on EVs is now integrated, with the power inverter sitting next to the motor to minimize transmission losses. It usually exposes a simple CAN-based control interface with a bunch of diagnostic data and YUGE high-voltage power leads.

As a result, you can buy EV conversion kits that reuse Tesla motors and power electronics. E.g.: https://kaizenmotoring.com/complete-tesla-swap-guide/

If anything, EVs will make it easier to repair stuff once the technology slows down a bit.

Re: CT scans of BYD car parts

#346

Post by joe_mamba »

km3r wrote: post #333
selcuka wrote: post #250

Earlier quoted context omitted.

> And not just American but any outside company. Would you call that "hostility to the West"? Sounds like an attempt to protect their own interests.

It's benefiting from the globalized market without freely competing in it. It gives them a massive edge in many industries and the world couldn't say no because of cheap manufacturing. And certainly hostile when you add currency manipulation onto it as well.

>It's benefiting from the globalized market without freely competing in it.

Ha, very rich criticism considering the US economy and stock market has been benefiting 1000x more from said "globalized market without freely competing in it", by printing money and exporting its inflation across the world with dampened consequences domestically, then using said printed money like liquid gold to buy valuable assets around the world (like real estate and innovative companies) thanks to its status as a reserve currency (something Charles De Gaulle complained about since the 1950s), a unique US cheat code enforced thought force via its massive military.

>And certainly hostile when you add currency manipulation onto it as well.

Again, very rich criticism considering the US's abusing its status as the reserve currency for its own benefit, see above.

Re: CT scans of BYD car parts

#347

Post by joe_mamba »

km3r wrote: post #334
chadgpt3 wrote: post #308

Earlier quoted context omitted.

Lots of countries are like that though. America has an unusually free system where anyone can do anything for better or worse, but Walmart failed in Germany by ignoring all the local processes like employee protections. (But I hear Aldi is taking over the UK!)

Employee protections aren't hostile, blocking Facebook while exporting Tiktok is a hostile trade imbalance.

>blocking Facebook while exporting Tiktok is a hostile trade imbalance

The US also threatened to block tiktok unless China sold it to a local US oligarch(the Oracle guy). The US is no saint here. And good luck getting people to shed a tear for China blocking Facebook. Good riddance to both of them.

Re: CT scans of BYD car parts

#348

Post by joe_mamba »

km3r wrote: post #335
joe_mamba wrote: post #319

Earlier quoted context omitted.

>Are western companies able to freely compete in China? Last I checked, no, they need local partners at best, Tesla operates Giga Shanghai fully independently and competes freely. >And not just American but any outside company. So did Italy, Germany, Japan and Korea to build up domestic auto industries otherwise Detroit would have steemroled them.

Giga Shanghai is the exception the proves the rule. It's one of the few, if only, foreign businesses that operate without a joint venture with a local company.

Again, nobody forces you to open your business or manufacture your stuff in China. Plenty of companies do not, like Google.

Companies abided to ruthless Chinese rules because they were greedy and wanted to exploit the Chinese slave labor and also get access to Chinese market, but the CCP didn't put a gun to their head and forced them to come to China, they decided that themselves for the sake of the holy shareholder growth. And now, 2 decades after you've made your money, you're complaining over a consensual arrangement?

And trade is always gonna be asymmetric, with rules in foreign countries that don't exist in the US. That's why the EU fines US companies regularly. China isn't much different. You want to operate in China, then you gotta follow the CCP rules. You don't? Then just leave. Easy.

Re: CT scans of BYD car parts

#349

Post by WorldMaker »

StilesCrisis wrote: post #133
krelian wrote: post #122

Earlier quoted context omitted.

There is a joke just about that in Back to the Future (1985)!

In BttF2, it is taken to the logical extreme and Marty's boss is Mister Fujitsu-san: https://youtu.be/UlEFqR4SaVA

It also recurs in BTTF3 with Marty and 1950's Doc needing to replace a single Japanese-made IC with a large vacuum tube assembly.

Re: CT scans of BYD car parts

#350

Post by ExoticPearTree »

torginus wrote: post #287
Toutouxc wrote: post #275

Earlier quoted context omitted.

The point is that you can't tell anymore just by looking underneath and counting the wtfs. I have a friend who's a big Honda fan, amateur racer, a true "petrolhead" but with an intact brain. Runs his own shop. Naturally there was a barrage of jokes when I rolled up in my new Chinese EV, but then we put it up on a lift and there wasn't really much to joke about. The platform looks boring and mature. Things are where y…

From what I've seen of youtube teardowns by mechanics, Chinese cars often have the air of modernity and future tech about them, but under the hood, they like to use technical solutions that were abandoned by European manufacturers a decade ago or more, leading to the cars not being competitive in driving dynamics to what you would get from an euro manufacturer for perhaps slightly more money.

> ... for perhaps slightly more money.

European cars are incredibly expensive these days and have been for a while compared to imports.

About 7 years ago I was looking for a new car and had only owned and drove VW cars. Naturally, I looked at VW, the Golf in particular. With all the bells and whistles, it came to about 35k EUR. A Civic was about 11K cheaper. Guess what I bought?

There was nothing in the Golf that could justify the extra cost. Nowadays is the same.

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