XC90_Executive skrev:
Heter inte lådan i XC70 "AWTF-80"? Det heter den i XC90 D5 iallafall.
Sorry

missade början, så XC70 nyare modeller har TF80...
Jo, TF80 verkar ha använts i XC90 för vissa motoralternativ redan 2005.
Motsvarande (?) hittat klipp ur VADIS för TF80SC:
"In normal conditions the gearshifts take place at relatively low speeds in order to reduce fuel consumption. With rapid accelerator pedal movements the Transmission Control Module (TCM) automatically changes over to sport mode.
Regulating the lock-up function
Regulating the lock-up function takes place by means of the Transmission Control Module (TCM) activating the lock-up solenoid. The engagement takes place by means of the Transmission Control Module (TCM) controlling the lock-up solenoid linearly and adapting the hydraulic pressure. The basic parameters for engagement are the engine speed, accelerator pedal position and the rotation speed of the transmission input and output shafts. The pressurizing of the lock-up function can be adapted by means of reading off the changes in the rotation speed of the transmission input shaft during the gearshift processes and comparing them with the calculated values in the Transmission Control Module (TCM).
Two different lock-up functions are integrated: locked lock-up and slipping lock-up.
Locked lock-up
In normal conditions lock-up takes place at relatively low speeds in order to reduce fuel consumption.
Slipping lock-up
Is a function which provides gentler engagement with dampened vibration and lower noise when using the lock-up gear. When this function is activated, lock-up is active but not fully applied.
The requirements for the function to be activated include the following:
-gear selector lever in D or MAN
-gear 2, 3, 4, 5 or 6
-transmission input speed is 1000 rpm
-transmission oil temperature is 20 - 120 °C.
Due to the slipping of the torque converter, between 50-200 rpm, the friction properties of the transmission oil are very important. The transmission oil's properties therefore differ from conventional ATF oil properties. Always use transmission oil specified for this transmission, otherwise the function of the transmission can be impaired.
Gearshift program
Normal program
When driving with normal accelerator pedal application the Transmission Control Module (TCM) uses a preset gearshift program, optimized to shift for economical driving. This gearshift program is designed for "normal" driving which combined provides early upshifting and lock-up. The gearshift program automatically adapts to different driving cases such as driving uphill with a trailer or driving at high altitude. In addition, transmission oil pressure is adapted to provide gentle engagement of the gears.
Winter program (Winter mode)
Winter program is selected with the ( W) button on the top panel of the gear selector assembly. The winter program enables starting in a high gear in order to avoid the wheels spinning on a slippery surface. The program is also suitable for other difficult situations where the driver wishes to control gear selection. When the gear position is D the vehicle starts in 3rd gear. Automatic shifting takes place between 3rd, 4th, 5th and 6th gear.
When the winter program is selected a W is lit in the combined instrument panel.
If kickdown is activated in winter mode then the transmission uses all gears for optimum performance.
Other programs
Adaptation
The Transmission Control Module (TCM) monitors each gearshift to achieve consistent and gentle gearshifting in all driving conditions. This is achieved by means of the control module either lowering or raising the hydraulic system pressure which is used during the gearshift itself. The changes in pressure level are stored in the control module memory when the vehicle is shut down, and are retrieved when starting. This provides improved gearshift comfort and improved service life for the transmission.
Complete adaptation applies when the following conditions have been fulfilled:
-the position of the accelerator pedal is constant
-oil temperature between 65 °C and 110 °C.
Driving uphill
The Transmission Control Module (TCM) can change the gearshift pattern slightly when driving uphill. This is to avoid close gearshifts.
Gearshifting with Geartronic
When the gear selector lever is moved to the Geartronic position (MAN) the automatic transmission is still hydraulically in position D. By moving the gear selector lever up (+) the Gear Selector Module (GSM) sends a signal to the Transmission Control Module (TCM) to shift up. If the gear selector lever is moved down (-) a signal is sent to the Transmission Control Module (TCM) to shift down. When the gear selector lever is in the MAN position, the Driver Information Module (DIM) will change the symbol in the combined instrument panel from D to current gear, for example 3. A signal is also sent to the Gear Selector Module (GSM) to light the LED for MAN and to extinguish other LEDs. The Transmission Control Module (TCM) determines whether the gearshift can be performed and the Driver Information Module (DIM) indicates current gear. If shifting is permitted then the different solenoids are activated in accordance with the specific pattern for each gear.
In certain situations however the Transmission Control Module (TCM) takes over the gearshift decisions. Amongst other things, the following applies:
-When stationary, only gears 1, 2 and 3 can be selected. Gear 4 can be selected at speeds above 40 km/h and gear 5 at speeds above 55 km/h, and gear 6 at speeds above 70 km/h.
-Automatic downshifting takes place on all gears when below a certain speed. Example: Gear 2 is selected. Automatic downshifting then takes place from gear 2 to gear 1 at 2 km/h if the speed before this exceeded 25 km/h. Otherwise gear 2 remains engaged. However, situations can arise where gear 3 remains engaged despite the vehicle stopping.
-Manual upshifting is required after automatic downshifting. Kickdown is not available in Geartronic position (MAN).
-Permitted speeds for the manual downshifts equate to those for kickdown upshifts, i.e. an engine speed of approx. 6000 rpm.
-If transmission temperature becomes too high then the Transmission Control Module (TCM) takes over the gearshift decisions. The purpose of this is to engage a gear where lock-up is possible at the current speed.
-Lock-up is possible for gears 2, 3, 4, 5 and 6."