this post was submitted on 21 Aug 2023
288 points (93.1% liked)

News

23267 readers
3066 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 1 year ago
MODERATORS
 

Numerous Tesla owners have said they've been stuck inside their EVs after the cars suddenly lost power.

YouTuber Tom Exton claimed that his Tesla Model Y ordered him to pull over before it suddenly lost power and left him unable to exit.

Exton followed the instructions for the manual release to open the door, but he said this "somehow broke the driver's window."

you are viewing a single comment's thread
view the rest of the comments
[–] oatscoop@midwest.social 4 points 1 year ago* (last edited 1 year ago) (2 children)

"Brake by wire" doesn't mean there isn't a mechanical linkage, just that the "primary" means of transmitting brake pressure is electrical.

Between safety regulations, liability, the the potential for a PR disaster there isn't a single road legal car for sale (yet) that doesn't have a backup hydraulic or other mechanical system -- the brakes must work if there's a catastrophic electrical failure.

[–] Bluescluestoothpaste@sh.itjust.works 2 points 1 year ago* (last edited 1 year ago)

Goddamit my whole life i thought by wire meant like physical tensile wires, that the power was transmitted through tension in the wires. Never realized theyre talking about electronic systems where the information is transmitted electronically.

[–] JohnDClay@sh.itjust.works 1 points 1 year ago (1 children)

I can't find which, but some vehicles seem to not have mechanical backup.

EHBs can be implemented by-wire, without legacy hydraulic systems and mechanical connections. In such a case, fail-operational redundancy is implemented, allowing the vehicle to brake even if some of the brake systems fail.[1]

https://en.m.wikipedia.org/wiki/Brake-by-wire#:~:text=Ford%2C%20General%20Motors%2C%20and%20most,Motors%20Electric%20and%20hybrid%20models.

https://www.mdpi.com/2227-9717/11/4/994

https://www.sae.org/publications/technical-papers/content/981109/

[–] oatscoop@midwest.social 3 points 1 year ago

EHBs are fairly common, but they don't preclude the use of a backup master cylinder system. A pure EHB has been a "goal" for a long time since eliminating the master cylinder and linkages would simplify design and manufacturing cost. So far nobody has been able to convince regulators or their legal team they can sell a car without one, though.

Pure electrical throttles have been the standard for a while now.