Yaris stop-start.

AdrianHi

Inactive wrote: »

It may well save a drop of fuel, however there is more weight to cart around, and more to go wrong.

I like to know that I have control over a car, not the other way round.

Surely better planning of journeys is the answer to fuel saving, together with a relaxed driving style.

It's not more weight, not by any significant amount, you don't loose any control over the vehicle and there is only so much you can acheive with better planning of journeys. If I have to arrive somewhere at a certain time and I'm stuck in traffic as a result Start-Stop saves a bit of fuel and doesn't interfere in my use of the car.
Start-Stop is another tool in the fuel saving toolbox, relaxed driving style etc. all good too.

Inactive

AdrianHi wrote: »

It's not more weight, not by any significant amount, you don't loose any control over the vehicle and there is only so much you can acheive with better planning of journeys. If I have to arrive somewhere at a certain time and I'm stuck in traffic as a result Start-Stop saves a bit of fuel and doesn't interfere in my use of the car.
Start-Stop is another tool in the fuel saving toolbox, relaxed driving style etc. all good too.

So are you suggesting that the car will move away instantly when I press the gas pedal ?

SomeOne_2

Inactive wrote: »

So are you suggesting that the car will move away instantly when I press the gas pedal ?

The engine will start the moment you press the clutch.

AdrianHi

Inactive wrote: »

So are you suggesting that the car will move away instantly when I press the gas pedal ?

.. and raise the clutch of course - I'm not suggesting it, I explicitly saying that's exactly what happens.
Lets say your approaching some traffice lights, you come to stop depresseing the clutch, you shift the gear into neutral, you raise the clutch, the engine cuts out. Lights start to change, you depress the clutch, the stater motor fires up the engine in the time it takes you to select a gear so that by the time you depress the acclerator to increase revs and raise the clutch your pulling away as if the engine had never been stopped. As I said a few posts ago, it's seemless.
There are a few other conditions in which the engine would start, low battery charge, higher electrical loads (such as headlights on, wipers going in the rain)

This is how it works on a Mini anyway.

I don't think anyone has the start-stop feature on an automatic gearbox car.

Inactive

AdrianHi wrote: »

..

I don't think anyone has the start-stop feature on an automatic gearbox car.

It was on an Auto that I was thinking, sorry I should have mentioned that.

So on a manual car, if the driver stays in gear, the engine keeps running?

Sorry I am trying to get my head round this to see how it works in reality.

AdrianHi

Inactive wrote: »

So on a manual car, if the driver stays in gear, the engine keeps running?

Yes, if you stay in gear with the clutch down, probably because your only intending to stop very brielfy, the engine keeps running.
You have to take the car out of gear and take your foot off the clutch pedal for it to stop.

I guess this feature is not available for automatics because there are no appropriate control inputs the system could use to trigger the stop and start of the engine. I wonder about putting it in "park" mode, but automatic drivers tend to only do that if they are stopping to get out the car. I cannot think how to make start-stop work right on an automatic.

harveybobbles

jeannieblue wrote: »

Re heated windscreen in a Yaris - no, still patented to Fords only at the moment, tho some Mini's do have them - not sure how...

We had an 06 plate Passat in at work a few weeks ago that had a heated front screen. I was quite surprised! Also has a Lexus IS220d that had a few heating elements at the bottom of the screen to heat the wipers up.

mikey72

sebdangerfield wrote: »

I believe with the yaris you get two batteries, one for the starter and one for auxilery things when the engines not running.

I read somewhere last week that EU regs state that all cars will feature stop start soon.

My first V8 SD1 automatic must have had this feature back in the eighties. When it was cold, you approached an island, lifted off the throttle with the choke in, it stopped as well.
(You could pull the choke out, it used to lock the front wheels braking but still power the back ones at about thirty mile an hour - cruise control on the cheap)

sebdangerfield

V8 SD1

Ah, a real mans car! Saw an old one not long ago that the Police had kept in full livery. It looked ace!

goldspanners

if there was ever a good reason to keep a good distance behind the guy in front of you at the lights then this is it.
when he selects neutral and lifts the clutch pedal his engine will stop, when he presses the clutch pedal the engine should restart. what if it doesnt? you need to be able to get round him easily.
it will happen,possibly quite often with all that extra starting it will be doing. abattery could be knackered and the driver just finds out at the lights when it wont restart.