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What, like the Q7 this thread is about?
Automatics
- Thread starter mlbtheshow
- Start date
What, like the Q7 this thread is about?
I didn't say I had any desire to do that, I'm simply making a point. Ubersonics assertion that you have complete control over the slush box is completely ludicrous. You can generally persuade it to do what you want in most situations, but in no way do you have the same level of control as with a manual.
If you have paddles, you have that level of control in modern boxes.
I still prefer a manual, but the control is there should you want it.
You don't need to consider what the gearbox will do. If you know that it will take 1 second from stamping your foot to getting a push on, factor that into the timing of your manoeuvre. quite simple to understand.. however, if you cannot make it into that gap in the time it takes then maybe the gap was too small anyway....
Why not? Loads of torque converter based automatics have paddles. I just bought one and it has shift times of 0.2 seconds.
http://www.youtube.com/watch?v=e2ktnu6Z1Q0
That's a video of a slushbox. Try changing that fast and that smooth with a manual!
I'm talking about a conventional auto box. Does your transmission use epicyclic gearboxes controlled purely by a hydraulic "computer"? i.e. no electronics?
A conventional auto box is not defined as one controlled exclusively without electronics. Mine has electronic controls.
Err yes?
Most of the autos I have driven over the last year have had paddles.
Yesterdays 330i was a case in point - torque convertor automatic with manual over-ride with paddles. In sport mode it wont shift up unless you hit the rev limiter and it wont shift down unless you dip under 1000rpm.
All the paddles do is replicate the tiptronic function that has been a feature of pretty much every BMW gearbox since about 1997!
That is not a conventional slush box. It is completely electronically controlled.
Err yes it is, as conventionally they didn't have any electronics, just a hydraulic computer. The term "slushbox" comes from the relatively slow changes they made, effectively slurring the gears together.
You are defining terms that nobody else uses. A 'conventional slushbox' is not accepted to be an automatic transmission with no electronic controls so your point is invalid.
Soldato
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as for overtaking, in my merc you can actually force a downshift by prodding the accel pedal and then easing off just enough and it'll drop a gear, raise the revs, but maintain the speed. Then you just press the accel and you get instant torques for overtaking. The amount of control you get just by the way you interact with the pedal is quite amazing.
I think you need to check the definition of 'conventional' as it does not mean old. Slushbox comes from the torque converter between the engine and wheels, not slow gear changes.
The term "Slushbox" was around before I was born, let alone you little nippers 
It has nothing to do with a torque converter, though pretty much all slush boxes will be coupled to one. The terms derives from the rather slow actuation of the brake bands inside the transmission causing a prolonged change from one gear to the next. In no possible way can the term be applied to a modern electronically controlled box that changes in a fraction of a second. It would be a complete oxymoron.
It has nothing to do with a torque converter, though pretty much all slush boxes will be coupled to one. The terms derives from the rather slow actuation of the brake bands inside the transmission causing a prolonged change from one gear to the next. In no possible way can the term be applied to a modern electronically controlled box that changes in a fraction of a second. It would be a complete oxymoron.
Completely wrong I'm afraid, utterly and totally. The torque converter does not cause slow changes. Drive a old classic with an auto gearbox and you'll be only too aware how the term originated.
Soldato
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Automatic throttles typically have a kickdown switch close to max throttle to provide the Transmission Control Module a direct input of driver demand and hence drop it a cog or two immediately.
I didnt really like the autobox in the X3 with 2.0d but in the XFR is nothing short of comical how fast that car is, would take some getting used to keeping up with the engine and thats with the 6 speed box! There is a momentumtary delay, its almost like the car clears its throats before consuming the road ahead at an alarming pace - with the X3 it was just crap for making progress, the converter just like the the converting part without giving you noticable increase in torque for what felt like seconds.
I didnt really like the autobox in the X3 with 2.0d but in the XFR is nothing short of comical how fast that car is, would take some getting used to keeping up with the engine and thats with the 6 speed box! There is a momentumtary delay, its almost like the car clears its throats before consuming the road ahead at an alarming pace - with the X3 it was just crap for making progress, the converter just like the the converting part without giving you noticable increase in torque for what felt like seconds.