5 ms·

If it's so intensive, why is auto-stop/start such a common feature on many vehicles? Especially since it seems to improve city-cycle mpg ratings...

ekleraki 3y ago
[flagged]
- housemusicfan 3y ago
  This is false.
  - ekleraki 3y ago
    Can you find a link that shows that ICE / non hybrid and non ev make up the majority of cars with automatic start and stop?
- flangola7 3y ago
  There's many 100% ICE vehicles that shutdown at stops.
  - ekleraki 3y ago
    Mostly means the majority and by construction allows for exceptions.
- MisterTea 3y ago
  My 2022 CRV ICE has this by default. You can turn it off but on by default every time you start the car (US law or something.)
  - ekleraki 3y ago
    Again, mostly means majority and allows for exceptions.
- lostapathy 3y ago
  This is demonstrably false. Even new Jeep Wranglers and Gladiators come with auto start/stop, and those are about as far removed from hybrids as it gets.
  - ekleraki 3y ago
    “Mostly” includes exceptions.
    - lostapathy 3y ago
      My point was that most vehicles include this feature, even those you’d least expect it on.
- shiftpgdn 3y ago
  The motor stops at TDC under compression and then fires the spark plugs to restart, reducing wear on the starter.
  - mynameisash 3y ago
    For others that -- like me -- have no clue what TDC is, I did a quick search[0]: > Top dead center, sometimes referred to as TDC, is the point in which the piston in the number one cylinder position of your engine is at its highest point on the compression stroke. [0] https://www.wikihow.com/Find-Your-Engine%27s-Top-Dead-Center-(TDC) https://www.wikihow.com/Find-Your-Engine%27s-Top-Dead-Center...
Kon-Peki 3y ago
Auto stop/start requires some (mostly minor) modifications to the engine, as well as updated software so that it is used only in “ideal” conditions. And the engine shutdown is done in a way that makes it quick and easy to restart. I’m not sure, is it even possible to use these systems on diesel motors?
- gambiting 3y ago
  Of course - I've had a diesel Nissan Qashqai with a start stop system all the way back in 2013. Never had any issues with it.
taeric 3y ago
This is an amusing place where most of the advancement was probably in the starter. The same thing that lets you have a small charger for your laptop has helped get a smaller starter that won't drain after a few starts. There is a lot of work that goes into starting an engine.

ekleraki 3y ago

[flagged]

housemusicfan 3y ago
This is false.
- ekleraki 3y ago
  Can you find a link that shows that ICE / non hybrid and non ev make up the majority of cars with automatic start and stop?
flangola7 3y ago
There's many 100% ICE vehicles that shutdown at stops.
- ekleraki 3y ago
  Mostly means the majority and by construction allows for exceptions.
MisterTea 3y ago
My 2022 CRV ICE has this by default. You can turn it off but on by default every time you start the car (US law or something.)
- ekleraki 3y ago
  Again, mostly means majority and allows for exceptions.
lostapathy 3y ago
This is demonstrably false. Even new Jeep Wranglers and Gladiators come with auto start/stop, and those are about as far removed from hybrids as it gets.
- ekleraki 3y ago
  “Mostly” includes exceptions.
  - lostapathy 3y ago
    My point was that most vehicles include this feature, even those you’d least expect it on.
shiftpgdn 3y ago
The motor stops at TDC under compression and then fires the spark plugs to restart, reducing wear on the starter.
- mynameisash 3y ago
  For others that -- like me -- have no clue what TDC is, I did a quick search[0]: > Top dead center, sometimes referred to as TDC, is the point in which the piston in the number one cylinder position of your engine is at its highest point on the compression stroke. [0] https://www.wikihow.com/Find-Your-Engine%27s-Top-Dead-Center-(TDC) https://www.wikihow.com/Find-Your-Engine%27s-Top-Dead-Center...

Kon-Peki 3y ago

Auto stop/start requires some (mostly minor) modifications to the engine, as well as updated software so that it is used only in “ideal” conditions. And the engine shutdown is done in a way that makes it quick and easy to restart. I’m not sure, is it even possible to use these systems on diesel motors?

gambiting 3y ago
Of course - I've had a diesel Nissan Qashqai with a start stop system all the way back in 2013. Never had any issues with it.

taeric 3y ago

This is an amusing place where most of the advancement was probably in the starter. The same thing that lets you have a small charger for your laptop has helped get a smaller starter that won't drain after a few starts. There is a lot of work that goes into starting an engine.