Luke42

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Question for those who know production schedule better than I do: at what point with a new vehicle design do they start crash testing? Initial prototypes are the most expensive to build and my hunch is crash testing would be during a phase where this is some sense of scale production, not one-offs
Crash testing starts before the car is built, using finite element analysis (FEA) models:

The actual crash tests are really just done to:
a) Validate the computational modeling.
b) Comply with regulatory requirements.

Of course, if they find any surprises during the real life crash testing, then they have to make another version of the car and fix any problems they found. Any modern car design process is going to do this with a very small number of iterations.

They have a really good idea of what the crash test results should look like before the first prototype is built.

This approach is saves lives, money, and time -- which is why it's been the standard approach for the last 25 years or so.

My guess is that Tesla's internal crash lab is more about not having to share the schedule with other car makers at the existing crash labs than it is about anything else. It probably makes confidentiality easier, too.

Source: I used to be a sysadmin for the kind of people who used LS-Dyna, ANSYS, and Comsol to do their jobs.

 
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jhogan2424

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Man you are really digging up some old ones. Must be one of those days you just can’t read enough and find yourself on a journey through the archives.
 


FutureBoy

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Maybe we should just be pulling up stuff from right after the initial reveal. Back when we were all in emotional chaos, full of excitement, and roarin' to go. Might make the current doldrums easier to handle.

Just think how naïve we all were back then.
 

Jhodgesatmb

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Maybe we should just be pulling up stuff from right after the initial reveal. Back when we were all in emotional chaos, full of excitement, and roarin' to go. Might make the current doldrums easier to handle.

Just think how naïve we all were back then.
Given how much information has been shared by Tesla, I kind of still feel naive (at least in the amount of knowledge sense).
 

Double Dare Fan

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If I knew this was an old thread, I would not have contributed. I do not always look at the dates.
The reply box should have a sign above it like "This thread is over [qty.] [unit of time] old" or similar on all threads over, say, 120 days old.
 

Jhodgesatmb

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If I knew this was an old thread, I would not have contributed. I do not always look at the dates.
The reply box should have a sign above it like "This thread is over [qty.] [unit of time] old" or similar on all threads over, say, 120 days old.
Sadly I do that all the time. You are not alone.

 

 
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