05-20-2012, 02:40 PM | #1 |
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The Automatic Transmission learns your driving style.
But how? What does it change? It must only implement its knowledge of the driver in "D" and "DS" musn't it? Can't change much in Manual mode can it!?
What could it learn? I need to learn it firstly! Applies for both Standard Auto and Sport Auto.
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05-20-2012, 04:15 PM | #2 | |
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This is my understanding after looking at many documents on 'Adaptation' to driver type. It doesn't strictly learn your style, but adapts to, and selects the most appropriate programme to suit how you drive. Change to another style and it adapts within a few seconds, if not instantly if you make agressive inputs, like rapid throttle or brake movements. Each generation obviously gets more advanced features, what the 8-speed has over the 6-speed I've yet to read, but the 6-speed adaptive features are well documented. For the 6-speed autos, the driver-type adaptation is restarted each time the vehicle pulls away from a standstill. So nothing in memory. HighlandPete |
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05-20-2012, 04:23 PM | #3 | |
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I suppose the driving mode (Eco Pro, Comfort, Sport, Sport + - the name of the button has just escaped me - Drive Performance Control? Mind blank!) will manually influence the transmission adaptation.
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05-20-2012, 05:01 PM | #4 | |
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I've got a feeling the subtle differences will mean a very sensitive driver will feel his/her car is behaving differently every time you drive, according to what you switch/configure and if you adjust your style a bit. Personally not to sure on "transmission control with foresight" if it is more advanced than the "cornering detection" that I have in my 6-speed. HighlandPete |
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05-20-2012, 06:35 PM | #5 | |
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05-20-2012, 07:38 PM | #6 | |
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As the transmission friction clutches wear the “fill time” for the shift to complete will change, but with the “self-healing” ability the transmission should shift the same. When the transmission is replaced or rebuilt the adaption values are cleared to allow the ECU to begin the correction process again and the transmission will go through the “relearn” process. Through the process of sensing and adjusting the ECU will create adaption values to allow the transmission to shift consistently during its life. Having electronic pressure control also allows the transmissions to have several personalities with the push of a button, movement of the shifter, or full throttle signal. The old days transmissions only used two inputs, Vehicle speed and Load (throttle position) which didn’t provide much adaptability. If you wanted a snappy shifting transmission you had to install a shift kit and live with that mode…..today you can just select the mode for your mood. See also: http://www.thetruthaboutcars.com/200...transmissions/ Ken Welch Instructor Automatic Transmissions Saddleback College |
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05-20-2012, 09:34 PM | #7 |
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Here is another link for more infomation:
http://www.bimmerboard.com/forums/posts/713335 |
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05-21-2012, 06:31 AM | #8 | ||
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