Skip the auto shop - Our mechanics make house calls

Q: How does an adaptive transmission work

asked by on

How does an adaptive learning transmission function? How long does it take for the pcm to learn my driving habits to adjust shifting?
My car has an automatic transmission.

There is not a fixed end-point insofar as the "learning" or adaptive strategy. The initial "adaptation" occurs within miles but these systems typically rely on "fuzzy" logic so there are continual changes in the operation of the transmission just as your use of the vehicle may change if you are driving in the city versus in a mountainous region or perhaps towing a trailer. Ford’s Adaptive Transmission Control system recognizes individual styles of driving (e.g., aggressive vs. relaxed) and adapts transmission shift parameters accordingly. Two types of ATC are adaptive shift-scheduling and adaptive shift-quality control. Adaptive shift scheduling uses information to assess driving style and decides when to upshift or downshift. It also can identify uphill or downhill gradients and recognize hard cornering. This helps inhibit shifts that might be annoying to the driver or affect vehicle stability. Adaptive shift-quality control uses information about the vehicle or environment, such as changes in the transmission due to wear, to improve the quality of shifts. This system can also adjust shift smoothness to suit driving style (e.g., crisper shifts for aggressive driving or smoother shifts for normal driving). Adaptive shift scheduling uses a microprocessor to read signals from various sensors. It uses a complex algorithm and ongoing memory to decide when to shift. For example, high lateral acceleration during cornering may prevent shifting even if the accelerator is suddenly depressed or released. This helps avoid potential loss of tire grip due to load reversal. Shift points can be based on calibration curves in memory. Adaptive shift-quality control adjusts parameters that affect the speed and smoothness of the shift by interpreting data, including drive line feedback from various sensors, as well as post shift parameters. These systems rely on thousands of lines of computer code and the foregoing, which is based on Ford’s own overview is simply a quick introduction. The Factory Service Manual and other Ford documentation go into much greater detail regarding the function and capabilities of these systems. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. How does an adaptive transmission work

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Will a 95 RWD transmission be compatible with a 94 4x4, both F-150.

Hi there. The transmission in your truck is called an AODE or 4R70E. This type of transmission did not change year of design until 1998. From the year 1993 to 1997, the transmission was the same. The only difference was...

Q: Immobiliser light flashing engine system failure and engine not starting.

Check the engine management control fuse (3amp) in the fuse box next to the battery. this fuse is only 3 amp and can easily burn out giving the symptoms you have. Also check the fuses in the fuse box below...

Q: What if the reason why im on limp mode is because i have a check engine light, check vsa system, and check emmissions system

Hi there. It is quite common for these warning lights to illuminate - especially if cleaning service was completed while the battery terminals were still connected. It's best practices to always remove the power to the battery when completing any...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.