Stop Start Technology

[Asteroid]

Only the Europeans are innovative.

[Tripper]

That's retarded.

It's still hot, oil is everywhere, it doesn't use a conventional starter. What exactly gets damaged by an engine quickly restarting a bunch of times?

Muz ever driven in peak hour in sydney CBD, its a fucken crawl at the best. If you park in the city and leave in peak hour its cold oil. and most of the damage to oil is caused when its not hot enough in a normal car.

[[ryan]]

I've got a new VW Passat Diesel with this feature. It's fucking annoying, I wish I could disable it permanently. The off switch is pretty much the first thing I press as soon as I start the car.

[Gussy]

The manual gearbox is a prehistoric device developed in the 20th century.
It is simplistic and cheap to produce.
It is primarily fitted nowdays as way to upsell customers to mid-higher level spec vehicles.
It is lauded as "more manly" by a few males who are threatened by their own sexuality.
It has no place in a modern vehicle used primarily for commuting duties.

The irony is that autos are driven by fags who have no interest whatsoever in a proper driving experience.

[MexicanBatman]

time to start a rumor, like starting an engine uses more fuel than leaving it running...

Just like people say about them fluro lights, nah leave them on cos they use less electricity then turning them on off bullshit...

ok go...

[drscrote]

I had this on a loaner C-class diesel. Only cuts in when oil warm, turn off on dash (but on again next start). Not intrusive at all.

Apparently no discrete starter / alternator anymore - merged into one unit that can take the stress. Merc dealer also said some kind of energy recovery system (?big spring in flywheel) that winds up when the engine stops and kicks it back over again to start.

That - if true - would make more sense, i.e. doesn't take energy out of the battery to start so no extra drain on the charging system (=more fuel) to replace.

[MexicanBatman]

yeah rubber bands

great tech really LOL

the smart car i hired in spain has a belt driven starter

man it was horrible, at everything LOL

[MWP]

Direct injection and very smart ECUs has made this happen.

They stop the engine with a piston just before TDC.
Then to start the engine, direct inject some fuel, ignite it, then turn it over very briefly with the starter motor.
It gets the engine running very quickly.

http://www.autoblog.com/2008/09/09/m...ect-injection/

[tut]

then why don't the do that with the regular enging shutoff with the ignition kind of thing?

[irsa76]

The manual for my Citroen explains in surprising detail under what conditions it works, moot point on mine since it's not activated. It's considered an extension of the neutral stop function on the automatic/automated transmission, which my car has.
Funnily enough I notice when the stop-start function is optioned on Mercedes Sprinters it includes the upgraded battery, even more amusingly on the Sprinters it can also be ordered with the locked/running option. Which is basically a button that allows the engine to keep running after you take the key out and lock the van.

[lukevl]

Haven't read all but yes it's going to be commonplace soon. It also can't be disabled in some markets and that will soon spread to the other markets. OEMs do however have an inhibiting matrix to get around some issues- temp extremes, engine temp, available voltage, low range, dynamic mode etc).

And a decent system will not bother you. You may hear the difference but a good one will be impossible to notice with the radio on or a conversation going.

[takai]

And a decent system will not bother you. You may hear the difference but a good one will be impossible to notice with the radio on or a conversation going.

Agreed, after the first couple of days i didnt notice the system in the Jetta anymore.

[260BC]

Engines don't wear more at startup than at any other normal time? Hmmmm, Lubrication 101 must be wrong

Anyway, I suppose that car makers are only responding to the superficiality of most new car buyers by making available gadgets like this. Of course drivers could lift their right foot a bit if they really want to save fuel, with an auto shift it into P at long wait traffic lights and so on.

[tut]

i could half my fuel consumption if i wanted to.

couldn't care less.

[yohoes]

It is lauded as "more manly" by a few males who are threatened by their own sexuality.
It has no place in a modern vehicle used primarily for commuting duties.

Are you just an arthritic old cunt, or have i accidently typed in performanceforumsUSA.com?