Stop Start Technology

[KDog]

My Datsun 180B used to do this.

Once I gapped the points correctly it ceased to be a problem.

[Captiva Fan]

Drove a Fiat Punto with stop/start in Germany. I wanted to hit it with a hammer, fuck it was annoying. Car was a heap of shit too.

I didn't think it was that terrible, for an econocar; mine was a Lancia Ypsilon, pretty sure it's the same thing.
I didn't even know it had stop-start though, picked the car up on a Sunday & it was summer-holidays time so there wasn't enough traffic that stopped at lights on the Monday afternoon; wondered how I'd stalled the bastard so just turned it off & on again ... took a day or two more before it happened again, and "oh - it's got stop-start". Didn't bother me after that, it was never off when I wanted to go.
Hard to believe, given how infrequently it stopped, that it makes much difference to fuel economy.

[BENN0]

The stop start works well when combined with transmissions designed for it. The latest trans designs keep the trans fluid under high pressure when the engine stops at lights so when it fires back up there is no wait for the trans to build pressure and be able to drive away. Saves a little more fuel.
Improvements in economy these days are looked at in 0.1 L/100km gains.

[smellytofu]

The thing that you *DO* notice is the AC, since when the combustion engine isn't running, the AC compressor isn't either.

And this is the downside to the IMA system. I don't know why they couldn't change the A/C system to electric like the Toyota HSD system.

Btw, start stop in a non hybrid is fucking annoying. It's the first time I turn off.

[wiggah]

Have this on my BMW M135i and gives me the shits.
There is a button to turn it off but it only applies until you restart the car.

Dealers can turn it off on request by setting the default status to 'last user selection'. Shits me that I have to go to a dealer to do it.

[MexicanBatman]

My mum's Honda Insight does this, and while that is a hybrid it uses the combustion engine to primarily move around. Driving it, apart from the sound of it starting and stopping (which isn't really that noticeable since it's a relatively quiet car), you don't notice it. The thing that you *DO* notice is the AC, since when the combustion engine isn't running, the AC compressor isn't either. Fine when you aren't stop for long, but we found that if we had to stop for any longer than a couple of minutes, we'd get the engine running again (just lift off the brake pedal slightly) just to get the AC to come back on.

the honda hybrid system is shit

no a/c and you cant drive on leccy alone etc... oh unledd your doing 15km/h on a downward slope i believe it is

the HSD toyota has is much better, in my camry you can drive just on electricity, so when your coming to a stop the engine is already off, whilst your stopped you can creep or even take off without ice coming on, and the whole time your heater/aircon still works

you dont even notice any of it after a while unless your looking for it

another car i drove had stop start (non hybrid toyota) and it gave me the shits so i turned the useless feature off

[exwrxex]

I had it in a diesel C class loaner a few months ago. It can be switched off but defaults back to it every time you start the car.

Nopics called me in a panic the first time she drove it telling me the thing kept stalling. TBH after a couple of days I was fine with it.

It was very quick to restart and pretty seamless.

[tut]

I beat you by like 20 seconds bro!

and i beat you by 2 hours bro

[sssgtr]

We have it in the nopics Madza CX5 (istop) seems ok freaks her out though. It has a button to turn it off, press go pedal or move the steering wheel and it starts.

Or don't press the brake pedal so far.

[takai]

I didn't think it was that terrible, for an econocar; mine was a Lancia Ypsilon, pretty sure it's the same thing.
I didn't even know it had stop-start though, picked the car up on a Sunday & it was summer-holidays time so there wasn't enough traffic that stopped at lights on the Monday afternoon; wondered how I'd stalled the bastard so just turned it off & on again ... took a day or two more before it happened again, and "oh - it's got stop-start". Didn't bother me after that, it was never off when I wanted to go.
Hard to believe, given how infrequently it stopped, that it makes much difference to fuel economy.

Yeah, the VW Jetta we had in the UK had this. Only i was jetlagged when we picked it up. Took ages to figure out WTF was happening.

That one didnt do it when the Aircon was on, or if you just left your foot on the clutch. Was good for the terrible stop start stuff leaving the British GP though, just sat there without the engine running until the lights changed around 10min later.

[260BC]

All these sorts of gadgets are designed to sell new cars or whatever, the makers don't give a shit about their long term effects. Starting and stopping an engine is not conducive to it's durability.

[BigMuz]

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?

[Captain_Slow]

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.

PF this week - trannies, Tupperware and now this. Jesus wept.

[caged]

Some of the are designed to stop at a certain crank shaft degrees to aid in restarting. I drove a manual Jeep and it restarted so quick I wondered if the starter was engaging at all.

[thebluerx7]

toyota does the stop start by far the best.has been doing it for fuckin 10 years,i love how these other shitheaps claim it as "brand new".

the cx5 has 3,947,261 parameters it must meet just to "istop" and then when it does it hurrendously fails and doesnt work anyway(every cx5 we have sold has had istop issues)
the reason prius works well is that prius has no starter motor,it has mg1 and mg2 electric motors inside its "trans" which get and supply power to/from the hv battery.when it "stops" it shuts off, then as you take off with enough throttle to request petrol engine power it applies hv battery to the mg1(from memory) and uses it like a generator and spins the inputshaft/crank from the back end. due to not being a normal starter motor its reliability its inpeccable and its capable of spinning the engine upto around 2000rpm+,meaning it can turn the engine on and make it rev up fast enough to pick up where you are moving already.

these other euro/jap/himalayan versions are shitful.

that said,the start stop feature in general should account for significant impovements in economy on most cars.

we can log a car for 10 or 15 mins and in the trip show anywhere from 1-3 mins of idle time in normal 50k zone driving. meaning for those 3 minutes you could use zero fuel. you cant beat zero fuel.