Method to control a road vehicle for the execution of a multiple downshift in a drivetrain provided with a servo-assisted transmission

A method to control a road vehicle (1) for the execution of a multiple downshift in a drivetrain provided with a servo-assisted transmission (7);

• the control method comprises the steps of:
• detecting a condition of slowing down of the road vehicle (1) and, simultaneously, detecting a driver's request for a multiple downshift;
• carrying out, in succession, a plurality of downshifts while the road vehicle (1) is slowing down and in an autonomous manner regardless of further interventions of the driver;
• determining a duration of a single shift time interval (Δt) common to all the plurality of downshifts;
• and
• carrying out each downshift following a first downshift when said shift time interval (Δt) has elapsed exactly since the previous downshift.