Transmission LEARNING how I drive?

[kevintomb]

UH, Ive heard this comment many times on this board, about how the transmission or the throttle LEARNS how a driver drives, and "adjusts" to it.....uh just WHERE are you guys getting this from? Ive found nothing stating our camrys 02-07 have any such device that "learns and must get USED to a driver"........

Besides, uh how can a car LEARN how someone drives, and KNOW who is driving at all......LOL.....what if you have 5 drivers of the car...does the car take a week off to learn each driver...??

What if the primary driver decides to drive relaxed most days and then one day wants to drive for fun....does the car NOT RESPOND....haha....see my point...??
I think the whole "car adapts to or learns driving style" thing is totally bogus, there may be some grade logic and controls to adapt to speed, gear, and throttle position, but the car has no way of knowing HOW someone is driving.....THINK ABOUT IT...

[JetspeedCamry]

I think your taking it out of proportion.

After an ECU reset, the engine fueling, igniton mappings, transmission shift points/pressure etc are brought back to a basic pre programmed level.

When we say the "ECU learns", it means that these basic maps are fine tuned automatically by the computer, since it will be running in open loop mode (getting data from sensors).
For example, after an ECU reset, the duty cycle of the injectors may be ... 60%. After a little bit of driving, in a certain style, this value may increase to 62% (slighty richer), or if you drive sedate, 59%.

There only minor adjustments being made by ECU.

Same goes with the transmission. Electronic soldenoid triggering times, pressure sensors, pattern selection can be fine adjusted by the ECU itself to correct for different conditions. If it didn't do this, the car may be harsh in certain circumstances.

THINK ABOUT IT

[shots76]

you are so right. When programming starts getting complicated, we start to think that the computer is smarter than us, ie it starts to learn. We are more likely to adapt to the machine than the other way round. Also, Camry won't be any cheaper if it can learn. (It's just a car, not a fighter jet)
Oh and damn, there will be so many transmission related issues because there are so many variations of transmission usage. And Toyota will start blaming us for not training the car right instead of their mistakes. LOL

[csaxon]

Adaptive automatic transmissions can "learn" and adapt to the driver's style, altering shift points and other transmission functions to produce the most efficient operation.

Drive more aggressively and it will delay the shift points for more spirited performance. Leisurely cruise around town and it will shift sooner for smooth, fuel-efficient performance.

This is not new. Computer controlled transmissions are over 20 years old. Mercedes and BMW implemented this technology years ago.

Every car review and the sales brochures mention the adaptive computer controlled automatic transmission.

Stop looking at the pretty pictures and read the articles.

[laphan]

My car lurched and confused (and rpm up 50-100 rpm during shifting) when shifting if I was light on throttle because I drive pretty hard right after the break in period (around 4K miles of hard driving). I decided to disconnect the battery to see if transmission really adjust to your driving habit yesterday and it turned out to be true. It shifts smoothly (but rpm still jump 50-100 rpm when shifting ocassionally to smooth out the shifts feel) and no lurching or hesitation moment during the shifts. After awhile, I couldn't stand driving like a grandma anymore and began to drive it like how I used to, it is back to hesitates and lurch during light throttle shifts

[DAMON]

yeah if you think it doesnt adapt, unhook your neg battery cable for a while and then go for a spin... the shift points will be reset and you will notice (if youre paying attention) a HUGE difference in performance and the shift times/rpms

[shots76]

Computers do not learn. Computers draw on resources of stored information and then calculate the most appropriate response to a user's move. That's COMPUTING. You reset it, it calculates and stores the information again.

[JetspeedCamry]

Originally Posted by shots76

Computers do not learn. Computers draw on resources of stored information and then calculate the most appropriate response to a user's move. That's COMPUTING. You reset it, it calculates and stores the information again.

As i said buddy, your looking to much into it. The term "LEARN" is used throughout the computer/technology world to describe just that, computations based on a number of fixed, given inputs. Toyota, or other electronics ECU/computer designers do not mean that the technology is Self Aware (2029 haha) and it's going to do everything by itself.


Just ONE example of the millions of hits in GOOGLE search.......... http://www.tmo.com/theory/myth/ecureset.htm

[Pineapple]

I drive so bad, there is not much different with ECT on or off. Used to be big different.

[rusty9]

last i heard, it was called ect-i and vvt-i look it up.