540
submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

Tesla was so swamped with complaints about driving ranges that it created a secret team to cancel owners' service appointments, source says::To suppress the volume of complaints the automaker created a secret "Diversion Team" in Las Vegas to cancel appointments, Reuters reported.

you are viewing a single comment's thread
view the rest of the comments
[-] Aceticon@lemmy.world 2 points 1 year ago

Also the efficiency and torque curve of an electric motor is pretty much flat at all speeds, whilst ICE motors are less efficient at both lower RPM (it's not even speed, it's rotations per minute) and higher RPM and there's a sweet spot somewhere in the middle, whose precise position depends on the motor technology (higher for gas, lower for diesel, for example).

The torque also depends on RPM, which is actually why you have gearboxes and those values are in RPM not speed (as the gearbox alters the RPM to speed ratio, exactly to make up for lower torque at higher RPM).

Along with regenerative breaking as you mentioned, this flatter efficiency curve makes EVs much more efficient in stop-and-go traffic than ICEs whose ideal conditions are to be cruising steadilly at around 2500 RPM (for gas, and it also depends on engine) in the highest gear (so at about 100km/h).

this post was submitted on 27 Jul 2023
540 points (95.5% liked)

Technology

60076 readers
2300 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 2 years ago
MODERATORS