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CT scans of BYD car parts

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Re: CT scans of BYD car parts

#141

Post by a96 »

xethos wrote: post #83
Cyph0n wrote: post #59

Earlier quoted context omitted.

So BYD for cars and Samsung for phones and consumer electronics more generally (from fab upwards). In fact, I believe Samsung is the only company on the planet that can design & build a state of the art smartphone from scratch - silicon/fabrication, SoC, battery, baseband, camera sensor, memory, and display. What other high tech vertically integrated producers exist in this group?

While I could have sworn RIM put out their own modems (which Qualcomm used to make life difficult for them, especially as the world transitioned from 3G to 4G), and did their own hardware and software, I can't currently find a source

Qualcomm makes life difficult for anyone who has to deal with them.

Re: CT scans of BYD car parts

#142

Post by a96 »

HerbManic wrote: post #115
Cyph0n wrote: post #81

Earlier quoted context omitted.

IBM no longer has fabs (spun off as Globalfoundries and later sold), and no longer manufactures PCs (sold to Lenovo?), but it does make mainframes I guess?

I am still amazed that IBM is pushing their POWER processors forwards for things like their System Z Mainframes. From what I have heard they are still really fast with I/O and general shifting of data but I'm not sure how much better than is than the alternatives. Wouldn't be surprised if that finally gets sunset in the next few years.

POWER still exists? That's kind of neat. I had a POWER 1 rs6k way back. Almost wish I'd had room to keep it just as a sort of museum piece. The processor was several chips on one or two large PCBs IIRC.

https://en.wikipedia.org/wiki/POWER1 IRC.

Re: CT scans of BYD car parts

#143

Post by hvb2 »

Toutouxc wrote: post #118
King-Aaron wrote: post #90

I've got a friend whos a master tech/trainer with our state automotive body, and is HV certified etc for dealing with these cars. He's currently got a BYD Shark strewn across his workshop for an autopsy. I have to say I'm super impressed with how heavy duty everything is. The control arms, subframes, etc all look good and don't fit the 'chinese car bad' narrative you always hear. The powertrain components all look to…

I have a Chinese EV too, an MG4 built by SAIC. It’s a really cheap car, significantly cheaper than its non-Chinese counterparts like the VW ID.3 or (roughly) a Hyundai Kona. The factory rust protection was maybe a bit on the lighter side, but everything else on it looks completely normal. The drivetrain is simple (no heat exchange mechanism between battery coolant and motor coolant, a slightly whiny motor), but also…

Cars only show if they're well made after like a decade? These are not washing machines or something.

Sadly that's also why it's hard to buy a new car, you only know what's a quality car years down the line.

First impression matters though.

Re: CT scans of BYD car parts

#144

Post by qalmakka »

hakfoo wrote: post #124
Cyph0n wrote: post #81

Earlier quoted context omitted.

IBM no longer has fabs (spun off as Globalfoundries and later sold), and no longer manufactures PCs (sold to Lenovo?), but it does make mainframes I guess?

I thought GlobalFoundries was AMD's fab division spun off.

Precisely. IBM paid them to take their fabs away (yes, they paid them, not the opposite, they were so obsolete that it was basically a waste disposal operation)

Re: CT scans of BYD car parts

#145

Post by smugma »

gofastercloud wrote: post #107
King-Aaron wrote: post #90

I've got a friend whos a master tech/trainer with our state automotive body, and is HV certified etc for dealing with these cars. He's currently got a BYD Shark strewn across his workshop for an autopsy. I have to say I'm super impressed with how heavy duty everything is. The control arms, subframes, etc all look good and don't fit the 'chinese car bad' narrative you always hear. The powertrain components all look to…

In the last few years Chinese manufacturing has reached a very high-level. The reason most people still believe that Chinese-made stuff is poor quality is because they will do what they are told and they are usually told “make this as cheap as possible” by whoever is paying the bills. While I reckon some other countries still have specialist manufacturing in key areas that surpasses China, most “common” parts can be…

Apple in China is a great book and shows how good China is on focusing on quality when that is the given objective.

Re: CT scans of BYD car parts

#146

Post by a96 »

markvdb wrote: post #56
joe_mamba wrote: post #28

Earlier quoted context omitted.

>There's a reason everyone calls them mobile phones with wheels. Which is why I'm so baffled how and why the EU has spent so much time and effort regulating batteries and charging ports for phones, but still ignores this massive issue of ease of repairability and right to repair of personal vehicles that has been plaguing car owners since the ICE days and is now only getting worse with EVs, that's costing us a lot mo…

Any electric gear with the battery as its main wear part. Ebikes. Sit-on mowers. Cars. This is about so much more than cost. Agency, autonomy, environment, efficiency, geopolitics even. I refuse to buy drm'ed gear. The exception is second hand where I can reliably avoid the drm with little effort. At its simplest, that means never using specific drm'ed functionality. At its most complicated, that means mitm'ing an en…

Absolute BS. Wear parts are the parts that move and EV batteries are notoriously long lived unless they're Broken As Designed (Nissan Leaf).

Re: CT scans of BYD car parts

#147

Post by mk_stjames »

imp0cat wrote: post #135
mk_stjames wrote: post #120

Earlier quoted context omitted.

This sounds like copy written by someone who hasn't actually spent a lot of time with the automotive world and in trying to sound like they have. Electrical connectors on automotive harnesses are far, far more reliable now on modern cars than they ever have been in the past, even with the increase in number of such connectors. Companies like Delphi and Amphenol put immense engineering effort into the way modern conne…

I think the point is that all those "dumb" switches, terminals or cables that get worn out can be replaced relatively easily (ie you need a multimeter and some patience to find the bad one). But if something in the integrated module fails, well good luck repairing that . These things are probably designed to be replaced as a whole, which is fine if you can get a new one. But as the cars get older, this is going to be…

Yes but specifically, in this article, the passage is written about a harness connector on a door window switch module as follows:

  >Fourteen pins in two parallel rows carry every signal this panel produces to the rest of the vehicle. Automotive connectors are among the most common failure points in modern cars: corrosion, fretting, and thermal cycling work on these joints over years of use. One connector failure on a module this integrated takes out mirrors, windows, locks, and child safety all at once.
This just reads weird to me.

Corrosion on an interior module connector is not as much of a concern these days unless the car is in a flood or the door card sealing is broken due to something like a poor repair job.

Fretting? What would cause fretting on pins of a connector that never gets touched by a human after it leaves the factory. It is a static connection, it doesn't get plugged and unplugged.

Thermal cycling? It is inside a door panel... not near a hot exhaust or inside an engine. It sees normal interior temperature cycles.

An actual Closures Engineer would more likely call out vibration shock during door slam in a closures FMEA as a potential electrical window switch fault hazard resulting from the connector loosening if the chosen connector lacks sufficient mechanical fastening moreso than anything..

Saying that connectors themselves are "among the most common failure points in modern cars".... just sets of flags to me as overly flatulent, generated puff writing. "Oh I need to list three things about connectors (thinking).... Corrosion -Fretting- Thermal Cycling-!! and this makes connectors among the most common failures in modern cars (no sources cited)".

(I'm a former automotive engineer.)

Re: CT scans of BYD car parts

#148

Post by p_l »

acdha wrote: post #108
gofastercloud wrote: post #107

Earlier quoted context omitted.

In the last few years Chinese manufacturing has reached a very high-level. The reason most people still believe that Chinese-made stuff is poor quality is because they will do what they are told and they are usually told “make this as cheap as possible” by whoever is paying the bills. While I reckon some other countries still have specialist manufacturing in key areas that surpasses China, most “common” parts can be…

> The reason most people still believe that Chinese-made stuff is poor quality is because they will do what they are told and they are usually told “make this as cheap as possible” by whoever is paying the bills. I’m reminded of all the dismissals people made about the skill levels of Indian software developers when the explanation was that the more skilled ones knew they could do better than the MBAs were offering t…

Unfortunately, the manager pushing the outsourcing pockets the money, outsourcing company pockets the money, and the local and indian teams get to be abused and latter gets extra blame for things outside their control.

I would say the problem is heavily structural and linked to few companies that very much pursue lowest possible effort, harming both employee and customer. We had a company that infamously pursued a somewhat similar (just with not as much leverage over employees) strategy in Poland - a common refrain was how other companies would get people jumping jobs from them who gave variants of "I needed some spending money while finishing my degree, escaped as soon as I could" story.

Unfortunately it seems a bit harder to do when some places apparently hire with only category appearing to be "according to census they speak english", then put them on project with minimal training and zero time or space to acquire more training.

Re: CT scans of BYD car parts

#149

Post by Danox »

a96 wrote: post #141
xethos wrote: post #83

Earlier quoted context omitted.

While I could have sworn RIM put out their own modems (which Qualcomm used to make life difficult for them, especially as the world transitioned from 3G to 4G), and did their own hardware and software, I can't currently find a source

Qualcomm makes life difficult for anyone who has to deal with them.

And now it appears Microsoft and Nvidia are gonna make life difficult for them in the computer market.

Re: CT scans of BYD car parts

#150

Post by spockz »

aidenn0 wrote: post #66
pimlottc wrote: post #29

Earlier quoted context omitted.

Having a mechanical key hidden in the electronic key fob is nothing new, it’s common on many cars.

And yet my Hyundai key fob, despite being the largest fob I've ever seen doesn't do this :/

Yes sadly the Hyundai and Kia key fobs of EVs (at least EV9) don’t have the mechanical backup key in the fob anymore. So you need to carry it on your keychain. Don’t leave it in your trunk. If the 12V battery does out you won’t be able to get into the car.
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