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Porsche boss faces software woes keeping VW a step behind Tesla

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Re: Porsche boss faces software woes keeping VW a step behind Tesla

#301

Post by Gravityloss »

gumby wrote: post #295
Gravityloss wrote: post #239

Earlier quoted context omitted.

The most complicated projects that humanity has built are software. The tooling and the culture in the software world is decades ahead of fields like engineering or business management. Take ideas like version control - a way to do change management. Open source. Test driven development. Continuous integration. These have existed in a nascent way in other fields, but software engineering has really taken the ideas to…

> Take ideas like version control - a way to do change management. Test driven development. Continuous integration. These have existed in a nascent way in other fields, but software engineering has really taken the ideas to the next level. TBF version control started (SCCS, RCS etc) by modeling how version control was done in mechanical engineering and architecture. Just look at the manual version control in old blue…

And that's what I wrote, they were indeed taken from other disciplines. Thanks for expanding it.

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#302

Post by lajosbacs »

dotancohen wrote: post #274
lajosbacs wrote: post #259

Earlier quoted context omitted.

Tesla does the same. Mine stopped working on the highway (it let me get off it though) and on the gas station, this was its v suggested way to reset. But as this was in the dead of night in the freezing winter, I had a lot of doubts before doing this. When a guy with a crane arrived, I finally left the car and was not able to open it again.

This is not true. The Tesla infotainment system can be restarted - even during - by holding both steering wheel buttons for 5 seconds. I've never had a problem with it (I've never had a problem with the infortainment system, I have had other problems with the vehicle) but I've tested this while driving and it does not affect the drivability of the vehicle.

That is true, it was the suggested way by the Tesla hotline after the method that you mention failed. The solution that worked ultimately was the flatbed truck...

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#303

Post by Gordonjcp »

doctor_eval wrote: post #300
Gordonjcp wrote: post #299

Earlier quoted context omitted.

My car is a second-generation Range Rover that weighs around 2.5 tonnes. Without power steering it's very hard to steer at parking speeds, and absolutely no different at all above about 20mph. No vehicle has brakes "powered by the engine". I'm not sure if you're maybe not quite explaining what you mean clearly there.

I don’t know what to tell you. Even a cursory search makes it clear that power assisted braking is a thing. When the engine stops, no vacuum. No vacuum, no assist. The brakes in most of the cars I’ve driven become substantially more difficult to use when the engine is off. https://en.m.wikipedia.org/wiki/Vacuum_servo https://auto.howstuffworks.com/auto-parts/brakes/brake-types... https://didyouknowcars.com/the-histor…

Okay, so in a car with vacuum assist, you have full braking power for several applications of the brake. Once the vacuum in the servo is exhausted, the brakes still work but will need a much harder press on the pedal. If the brakes become hard to use the second the engine is off, your brakes are fucked and you need to get the servo and master cylinder replaced.

Many really modern cars have gone back to the old WABCO-style electric pump that will pressurise the braking system as long as there's power in the battery, because that whole thing plays more nicely with hybrid drivetrains.

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#304

Post by bennysomething »

jq-r wrote: post #278
bennysomething wrote: post #195

Earlier quoted context omitted.

How on earth can someone be offended by their son in laws good salary!?

I think its very spread out at least in Europe in my experience. Hell even my own brother is envious on my salary because he got a engineering degree (vs my IT degree), so "by right" he should have a higher salary than me. Aside from the fact that he's employed by the local government to move paper from a desk to desk or rubber stamp documents. My parents also think the same as being civil engineers themselves. Parap…

Good grief! I'm in the UK, I haven't come across this sort of thinking before but "working in IT" isn't high status I guess.

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#305

Post by mixmastamyk »

panick21_ wrote: post #204
cycrutchfield wrote: post #133

Earlier quoted context omitted.

Just like that huge, untapped market for a cell phone with minimal software. Yup, people will be lining up around the block for the modern equivalent of a Motorola razr or Nokia brickphone. There’s dozens of us! Dozens!

Its always funny when Hackers think their obscure tastes are universal.

When these choices don't meaningfully exist there's not enough information to know whether it is viable or not.

The present situation exists due to increased monetization, not because people are clamoring for blue-sceens, dangerous distractions, broken bluetooth, and pervasive surveillance in cars.

"Hey wouldn't it be great if my disgruntled ex could find out where I am every minute!?"

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#306

Post by doctor_eval »

Gordonjcp wrote: post #303
doctor_eval wrote: post #300

Earlier quoted context omitted.

I don’t know what to tell you. Even a cursory search makes it clear that power assisted braking is a thing. When the engine stops, no vacuum. No vacuum, no assist. The brakes in most of the cars I’ve driven become substantially more difficult to use when the engine is off. https://en.m.wikipedia.org/wiki/Vacuum_servo https://auto.howstuffworks.com/auto-parts/brakes/brake-types... https://didyouknowcars.com/the-histor…

Okay, so in a car with vacuum assist, you have full braking power for several applications of the brake. Once the vacuum in the servo is exhausted, the brakes still work but will need a much harder press on the pedal. If the brakes become hard to use the second the engine is off, your brakes are fucked and you need to get the servo and master cylinder replaced. Many really modern cars have gone back to the old WABCO-…

Until now you said that no car has power brakes, now you’re saying well they do have power brakes but they keep working when the power’s gone. I really don’t understand why you’re arguing with me.

But it is all beside the point. It’s easy to point out problems with BEVs because they’re new, but ICEs are far more mechanically complex and are therefore also subject to many kinds of failures. Simply because they have fewer moving parts, complete loss of power in a BEV is far less likely than in an ICE. This is why I said that we shouldn’t be overly nostalgic for ICEs.

Perhaps you’re just overly focussed on my throwaway line about “blowing a belt” - ICEs can also fail from a damaged cam, valve, pushrod, crankshaft, distributor, piston, timing chain, injector, air intake, turbo, fuel pump… I’m not really sure what your point is other than to nitpick at my example of one of the literally dozens of complete power failure modes of an ICE.

Re: Porsche boss faces software woes keeping VW a step behind Tesla

#307

Post by cycrutchfield »

mixmastamyk wrote: post #305
panick21_ wrote: post #204

Earlier quoted context omitted.

Its always funny when Hackers think their obscure tastes are universal.

When these choices don't meaningfully exist there's not enough information to know whether it is viable or not. The present situation exists due to increased monetization, not because people are clamoring for blue-sceens, dangerous distractions, broken bluetooth, and pervasive surveillance in cars. "Hey wouldn't it be great if my disgruntled ex could find out where I am every minute!?"

You neo-luddites sure are strange people. You always have the most convoluted hypothetical scenarios you use to justify your weird beliefs.
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