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alfadriver
alfadriver MegaDork
1/26/25 2:15 p.m.

In reply to GameboyRMH :

If they were technically and financially feasible, they would be in the cars now.  All it would take is one company being brave enough to try it, and show the benefit as well as being reliable enough.... 

GameboyRMH
GameboyRMH MegaDork
1/26/25 2:57 p.m.

In reply to alfadriver :

Hopefully it won't be too long now:

https://www.skeletontech.com/news/skeleton-technologies-supercapacitors-power-new-indycar-hybrid-system

In a world where new cars are becoming luxury items for the wealthy, the financial feasibility bar should be low enough.

einy (Forum Supporter)
einy (Forum Supporter) Dork
1/27/25 12:29 p.m.
alfadriver said:

As for the starter- we are not in the 60's anymore.  While starters to break, they don't very often. 

From experience owning 6 Honda/Acura products so far beginning in 2001, starters seems to be ~ 120k mile pieces of equipment on that brand of vehicles.  With the exception of my latest, none of those have had start/stop on them.  I wish I knew how many starts that equates to, but our driving is a reasonable mix of 5-30 mile trips, with a few long vacation type trips thrown in each year.  Given this, I disable the start/stop on the current one that I drive every time I start it up to prolong starter life. 

GameboyRMH
GameboyRMH MegaDork
1/27/25 12:38 p.m.

Keep in mind that start/stop engines are made with beefier starters to stand up to the increased duty, they also have main bearings with a soft red coating to survive the higher number of start/stop cycles.

alfadriver
alfadriver MegaDork
1/27/25 1:47 p.m.

In reply to einy (Forum Supporter) :

That seems to be an issue with Honda, not start/stop.

Besides, since start/stop is an emissions device (this is what we are discussing), they are required to be robust to 150k miles, as that is the certified mileage limit.  While the OEM coverage is less than that, if enough cars fail before 150k miles (and the limit is really low) then OEM's are forced to recall all of the cars and replace the starter on their bill.

So OEM's all have a vested interest in making sure these make it well past 150k miles before issues.

Will
Will UberDork
1/27/25 4:37 p.m.

Agree with the idea that it depends on implementation. I'm fine with it on my Caddy ATS except that as others have said, I do wish it didn't turn the engine back on when shifting from drive to park.

I drove some sort of rental Chrysler minivan and I hated the implementation on that one. Just another couple tenths delay between releasing the brake and the engine coming back on feels like an eternity.

AxeHealey
AxeHealey SuperDork
1/27/25 4:49 p.m.

In reply to mfennell :

TIL, thanks! Wish the GR had it.

 

EDIT: After reading more posts it seems super common to have start/stop with a manual trans, very cool. Just so happens I've somehow never come across it. 

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