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GERMANY: Audi combines twin clutch with start stop
Audi has claimed a first in the premium segment by combining twin clutch automatic transmission with start stop. First models are the 1.4 TFSI and 1.6 TDI.
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19 Oct 2009
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RE: GERMANY: Audi combines twin clutch with start stop
Engine Start in 200ms !! Show me some data please.
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19 Oct 2009
by 12VSS
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RE: GERMANY: Audi combines twin clutch with start stop
I was taught that when you stop (as opposed to give way), you put the handbrake on and put the car in neutral. Certainly this is my practice at a red traffic signal. Not only should there be no need to keep the foot brake depressed, taking one's foot off the brake pedal removes the annoying bright red glare from the view of the person behind, especially now that all vehicles have centre high mounted stop lights.
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20 Oct 2009
by
kala
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RE: GERMANY: Audi combines twin clutch with start stop
Way back in the day I was taught the same thing - "handbrake, neutral". However, more recently I have had a few advanced driving assessments where I was told that it can be better to stay in gear and with your foot on the brake until at least 3 cars have stopped behind you - thus you remain in a ready state to pull away should you see a car approaching that may not stop, but also by having that "annoying bright red glare", there's more chance that approaching cars, and cars behind them, will see that you are stopped and react accordingly.
With a manual car with "stop/start", the old school approach (handbrake, neutral) is necessary to benefit from the stop-start efficiencies, but with an auto it seems the latter approach (foot-on-brake) is required. I am all for efficiency measures but am not happy to concede safe and practical driving techniques to fit around their modus operandi.
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20 Oct 2009
by figbat
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RE: GERMANY: Audi combines twin clutch with start stop
Quote:RE: GERMANY: Audi combines twin clutch with start stop
I was taught that when you stop (as opposed to give way), you put the handbrake on and put the car in neutral. Certainly this is my practice at a red traffic signal. Not only should there be no need to keep the foot brake depressed, taking one's foot off the brake pedal removes the annoying bright red glare from the view of the person behind, especially now that all vehicles have centre high mounted stop lights./QUOTE]
I couldn't agree more. Being stuck in traffic behind a modern car with it's 'glaring' LED brake lights, particularly on a dark wet winter nights, gives me headaches. I'm sure I'm not alone. Thanks to Audi it seems this problem is just about to get worse 
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20 Oct 2009
by
ford-man
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RE: GERMANY: Audi combines twin clutch with start stop
Here in the states, with 90% of the vehicles auto trans equipped, we expect to see brake lights on. When I do drive a manual, I always shift to neutral at traffic lights but only use the handbrake if I need to hill-hold. You might find it interesting to know that Ford will install automatic hill-holding (using the e-brake) as standard equipment when it begins selling cars with dual-clutch transmissions in the states next year.
And, as figbat says, that annoying glare IS there to tell the approaching traffic that the next car in line is slowing or stopped. I would rather know what the driver ahead is doing and live with the glare for a moment. I want the driver behind me to get the same message.
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20 Oct 2009
by billyjoejimbob
Forum moderator
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RE: GERMANY: Audi combines twin clutch with start stop
Yes that's right of course, but at night LED brake lights are just too bright, conversely in sunlight they're not bright enough! Maybe it's time they were variable based on the ambient lighting levels ?
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21 Oct 2009
by
ford-man
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