Guidelines for use

Before going into details about the use of the system, it should first be mentioned that by pressing buttons located on the tunnel drivers can select the mode of operation he feels the most appropriate in order to obtain optimum car performance. There are four models of operation and they can be described briefly as follows:

"normal": the system changes gear at the driver's request. This mode is advisable for a fast safe driving style, and can be used on wet road surfaces too;

"sport": the system makes the gear changes, opting for rapidity of gear engagement as opposed to comfort. This mode of operation is indicated for really fast driving on a dry road surface. The sports selection means that the suspension is automatically adapted to extreme usage;

"auto": the system changes gear automatically. This mode makes for relaxed driving in either urban or extra-urban traffic conditions. The driver can change from the automatic mode in of two ways: by requesting a manual gear change or by pressing the button marked "automatic" once again;

"low grip": with this mode of operation it is possible to use the car even on icy or snow-covered road surfaces, so ensuring optimum traction conditions.

Changing up into a higher gear (manual)

This is carried out by operating the right-hand level (UP). The system enables this only if the engine is turning at sufficiently high revs following the gear changes, so that the car will be able to proceed smoothly in the higher gear requested. The gear change can be operated with the accelerator in any position, even with the throttle valves fully open. Close to the rev limited, the system changes up to the higher gear automatically at which point the driver must take over.

When in the "sport" mode, gear changes are performed more rapidly and, above 7,000 rpm with the accelerator hard down, the system carries out gear changes at the speed of a professional driver driving to the limit of his ability. In the "sport" mode automatic change to a higher gear is inhibited.

Changing down into a lower gear (manual)

This is carried out by operating the left-hander lever (DOWN). The system only enables this operation if the engine is at a level of revs below that of the limited after the gear change or, in first, at a threshold that does not make the braking effect of the engine too pronounced, with a consequent risk of damage. The gear changes can be performed with the accelerator in any position, even with the throttle valves fully open. Nearing minimum revs the system automatically changes down into a lower gear. In "sport" mode, when gear changes are performed with the accelerator down, the clutch is closed more rapidly. The system protects the clutch plate from overheating ­ a warning buzzer sounds when the critical temperature threshold is exceeded. This advises the driver that the system is being used in an unsuitable manner with possible critical consequences for the clutch. The system also monitors the functions of the gearbox, informing the driver a warning lighting the event of faults.

Origins of the design

Application: form Formula 1 to the F 355

Technology applied to road use

Performance