Won't the MPGe values be higher for these vehicles because they are being driven exclusively during summer months so far, when batteries are less efficient in the winter months?
Tesla Model Y efficiency exceeds early-production Model 3
11–14 of 14 posts
Re: Tesla Model Y efficiency exceeds early-production Model 3
#12If the efficiency gains vary by production year, that implies it's hardware improvements, as opposed to software tweaks (which would be rolled out fleet-wide regardless of year). I wonder what goes into that experience curve effect?
Tesla doesn’t change hardware by build year. They make hardware changes every day/week/month.
How are they sourcing parts and integrating them into the manufacturing process "every day"? This seems like an SV understanding of manufacturing; Tesla may be more agile than the average auto OEM, but there is still a complex procurement prcoess that requires lead time, as well as spare parts for fleet repair and maintenance.
Do you have an example of a piece of hardware they are swapping every day, week or month? Maybe this is why they have a hard time servicing their cars.
Re: Tesla Model Y efficiency exceeds early-production Model 3
#13Earlier quoted context omitted.
Tesla doesn’t change hardware by build year. They make hardware changes every day/week/month.
> They make hardware changes every day/week/month. How are they sourcing parts and integrating them into the manufacturing process "every day"? This seems like an SV understanding of manufacturing; Tesla may be more agile than the average auto OEM, but there is still a complex procurement prcoess that requires lead time, as well as spare parts for fleet repair and maintenance. Do you have an example of a piece of har…
They know by VIN exactly what parts go in what car.
That said, the coding equivalent is that they make interfaces - and swap out interfaces. You can make a LOT of changes at the implementation level, that do not change an interface.
> Do you have an example of a piece of hardware they are swapping every day, week or month?
Sure, they are swapping the entire body caste machine from ~20 parts down to 1..
https://www.foundrymag.com/molds-cores/media-gallery/2193204...
went live this week I believe, while they are actively cranking out thousands of model Ys per day.
Another example - the octovalve - a very special decide that lets heat and cold get shared 8 ways as needed between motors / battery / and cabin is a huge part of the model Y. According to a teardown
https://www.thestreet.com/tesla/news/munro-tesla-model-y-oct...
the valve has had 13 changes in the 6 months the car has been in production. 13! In a single part that is the size of a small backpack.
> Maybe this is why they have a hard time servicing their cars.
This has not been my experience at all. I think QC is a little low on brand new cars during rush season, but service has been top notch. Make sure you aren't relying on stories from 2016.
Re: Tesla Model Y efficiency exceeds early-production Model 3
#14Earlier quoted context omitted.
Tesla doesn’t change hardware by build year. They make hardware changes every day/week/month.
Really? How do they support all those hardware configurations? Is there a policy framework they use to manage software development do it works well with all those configurations?
Same way you can easily refactor code.
For an example see https://www.thestreet.com/tesla/news/munro-tesla-model-y-oct...