SensoDrive

SensoDrive is a type of mechanical gearbox with electro-hydraulic control, also known as a robotized gearbox or semi-automatic transmission. It allows the driver to switch between fully automatic mode and sequential manual shifting. The mode selection is made either by a button on the dashboard or directly via the gearshift controls.

principle of operation of SensoDrive gearbox

Two manual control options are available: a classic gear lever located on the floor or paddles behind the steering wheel. Vehicles equipped with the SensoDrive transmission do not have a clutch pedal – the clutch and the gear changes themselves are controlled electronically using servomotors. The gear lever is not mechanically linked to the transmission; the entire process is managed by the control unit.

This unit evaluates several parameters with each gear change – such as vehicle speed, gear lever position, engine temperature, or information from ABS and ESP. Based on this data, it then automatically controls the clutch and the selection of the gear.

Advantages:

• lower fuel consumption than a classic automatic transmission
• lower production and maintenance costs (mechanically simpler than a full automatic)
• comfortable driving without a clutch, suitable for city traffic

Disadvantages:

• shifting can be slower and less smooth, especially in older versions
• the transmission’s response may be delayed during dynamic driving
• requires getting used to the specific behavior when starting and shifting gears