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CT scans of BYD car parts

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Re: CT scans of BYD car parts

#181

Post by joe_mamba »

Toutouxc wrote: post #105
joe_mamba wrote: post #20

Earlier quoted context omitted.

>Most of those stories are 1/ crashes and 2/ hybrids. No, they're faulty coolant seals of the electric motor, wrecking the power unit. >but those memories are overwhelmed by the terror of “what is that noise”. I just turned up the music till the noise went away. Problem solved. >Now I drive a Tesla that accelerates faster than that Camaro, handles better, and hasn’t been to the shop once. Good for you, but do you kno…

> turned up the music till the noise went away I viscerally hate people who do or seriously suggest this. First, ignoring any strange noise in a car almost always leads to more expensive and stressful repairs down the road. Second, how the hell do people hear a noise and are simply okay with not knowing the source? Not understanding the situation and not being able to make any kind of informed decision?

>I viscerally hate people who do or seriously suggest this.

It was a joke mate, chill.

Re: CT scans of BYD car parts

#182

Post by torginus »

quijoteuniv wrote: post #162
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…

Vertical integration matters. If BYD controls much of the chain from the mine to the ship, they’re not paying everyone else’s margin along the way. That can translate into more car for the money. I own a BYD Tang, so I’m biased, but the value for money has been hard to beat. Scale probably helps too. When you sell millions of cars using many of the same parts, availability is better and parts are more likely to stay…

Vertical integration is a double edged sword. When your car is a decade old or more, and stuff starts breaking, the only vendor that makes parts for it is BYD - and its up to them if they bother selling to you, at what price, provided they still make these parts at that time.

Time will tell how cheap and easy will they be to maintain, which affects residual value at the end of the lease, which affects payments.

Nobody pays sticker price for new cars as a lump sum. If BYDs (or whatever car) are impossible to maintain, that means nobody will want them used, and residual value will be low, which means BYDs will cost more to the end user to own than a more expensive car by a different manufacturer.

Which seems to be the case for now in places like Germany, but we will have to wait and see how the situation develops and the second hand market builds up.

Re: CT scans of BYD car parts

#183

Post by joe_mamba »

binary132 wrote: post #15
joe_mamba wrote: post #8

Earlier quoted context omitted.

>This simplifies vehicles considerably. On the contrary, this much integration makes repairs nearly impossible, meaning you might have to swap the whole unit(for a lot of $$$) when something small inside it inevitably breaks. Check out the articles published by EVclinic that cover such cases. Aftermarket EV repairs are already big business due to how difficult and expensive the OEMs make it.

I’m very confused as to why this is downvoted but I tossed you an upvote since I do my best to work against the constant brigading I always see on this forum.

>I’m very confused as to why this is downvoted

HN doesn't like like opinions that don't paint EVs in the best light possible. It's like a religious cult in some regards.

Re: CT scans of BYD car parts

#184

Post by avhception »

hermanzegerman wrote: post #168
vladvasiliu wrote: post #166

Earlier quoted context omitted.

> Vertical integration matters. If BYD controls much of the chain from the mine to the ship, they’re not paying everyone else’s margin along the way. That can translate into more car for the money. This is interesting. Wasn't the idea in Europe (and maybe elsewhere, too, no idea) that outsourcing components would lead to economies of scale? After all, a Mercedes or BMW or VW seat is still roughly a seat? It's interes…

VW, Mercedes and BMW also squeeze their suppliers very hard, and they operate with razor thin margins. So I agree and wouldn't say that doing everything in house is always going to be the cheaper way

My family operated a business on exactly these razor thin margins. You always live on the razors edge. You're unable to invest into the future, unable to improve your processes, and god forbid there is even a minor disruption. I don't think it's sustainable. We've since faltered, as have our many of our competitors and suppliers.

Re: CT scans of BYD car parts

#185

Post by ErroneousBosh »

serf wrote: post #25
ErroneousBosh wrote: post #23

Earlier quoted context omitted.

> BYD builds a unit with an integrated motor, differential, axle, and wheel hubs So wait, the whole axle is solid then? Like a 1960s pickup truck but with all the weight of the motor and gearbox hanging off it too? That must give it ridiculous unsprung weight.

it's not really like a 'live axle' from an older truck, it's more like a de-Dion style suspension (or dead axle ). https://en.wikipedia.org/wiki/De_Dion_suspension you still see these in velocipede-style vehicles commonly. and to your point : a dead axle is an effort to reduce unsprung weight compared to a live axle; it also lets you actually use alignment as a remediation for asymmetry issues rather than just pre-de…

Ah, like on my old Volvo 340 ;-) They were fun, all that weight at the back (the diff and gearbox were bolted together under the rear floor) gave it excellent balance. Bit of a shame all that 50/50 weight distribution was only pushed along by a 1.4 Renault engine then, I guess.

Have you ever seen the Jaguar IRS setup? It's more like a twin-wishbone suspension *but the driveshaft is the upper link!* It's in compression and stops the hub tilting out, and the rear brakes are inboard to reduce weight even further.

Re: CT scans of BYD car parts

#187

Post by arcade79 »

My take: China is now producing cars of such good quality that companies are putting CT-scans of their cars online ..

Been driving Tesla the last 9 years .. entirely possible that my next car will be a BYD.

Re: CT scans of BYD car parts

#189

Post by Cthulhu_ »

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…

> While I reckon some other countries still have specialist manufacturing in key areas that surpasses China

I don't think this is true. Maybe super specialist things like chip manufacturing products, but it's guaranteed China is spending heavily on R&D to develop their own. When it comes to cars / car parts they will be on par with if not surpassing most countries.

Also keep in mind China's sudden onset had a big impact on European and US car manufacturing, with VW / VAG closing major factories in Germany. Mind you, that's also because VAG was the biggest car manufacturer in China, until suddenly BYD and co opened up their factories and dominated the market in a short amount of time.

Re: CT scans of BYD car parts

#190

Post by uejfiweun »

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…

I wish China didn't have such a hostile government to the West. Because I'd love to buy a BYD car and see this for myself, or try the Xiaomi car that MKBHD was so keen on. But because of the hostility I kind of get why there are bans.
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