Contents: Work programs ↓ Selector lock ↓
Work programs
The automatic transmission control system provides for various transmission operation programs. Depending on the driver's actions or the vehicle's driving conditions, either an economical program, i.e. one aimed at saving fuel, or an active program, which can be very conditionally called "sporty", is selected.
The selection of the gearbox operating program is carried out automatically depending on the nature of the driver's work with the accelerator pedal.
In case of slow or normal accelerator pedal operation, early engagement of higher gears and late shifting to lower gears enables fuel economy.
The so-called "sport" program of the gearbox operation is selected when the accelerator pedal is controlled quite sharply. In this case, the accelerator pedal should not be pressed so vigorously, so as not to unnecessarily exceed the pressure threshold on the accelerator pedal, beyond which the forced anticipatory engagement of a lower gear, provided for in the gearbox control system, occurs. When selecting the "sport" mode, the engine power reserves are fully utilized due to a slight delay in switching to a higher gear.
Depending on the driving resistance, for example when towing a trailer or driving uphill, a program is automatically selected to provide increased traction on the drive wheels by shifting down and thus avoiding constant gear shifting.
Selector lock
The selector is locked in the "P" and "N" positions when the ignition is on. To move the selector out of these positions, you need to press the brake pedal and press the button in the selector handle. Thanks to this, there is no situation where one of the gears can be inadvertently engaged and the car will move off completely uncontrollably.
The design of the automatic transmission includes a delay device so that when changing from one position to another via the "N" position (for example, from "R" to "D"), the selector is not blocked. Thanks to this, it is possible to rock a stuck car. Only when the selector is in the "N" position for more than one second without pressing the brake pedal, the selector is blocked.
At speeds above 5 km/h, the selector lock in position "N" is automatically disengaged.
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