Motor vehicle and a braking control method for the motor vehicle

A motor vehicle (1) comprising:

• a first wheel (FR) and a second wheel (RL, RR);
• a first control member (7), which can be operated so as to cause a braking action exerted upon said first wheel (FR) and second wheel (RR;
• RL);
• a first braking device (11) and a second braking device (13, 12), which can be operated by means of said first control member (7) so as to exert a first braking torque upon said first wheel (FR) and a second braking torque upon said second wheel (RR, RL), respectively;
• said first braking device (11) comprising:
• a first body (20);
• a first disc (21) angularly integral to the relative first wheel (FR) and housed inside said first body (20);
• at least one first pad (22) housed inside said first body (20) and movable between a neutral position, in which it is spaced apart from said first disc (21), and an operating position, in which it comes into contact with said first disc (21) so as to exert said first braking torque;
• a first chamber (23) delimited by said first body (21) and housing, on the inside, said at least one first pad (22);
• said second braking device (13, 12) comprising:
• a second body (20);
• a second disc (21) angularly integral to the relative second wheel (RR, RL) and housed inside said second body (20);
• at least one second pad (22) housed inside said second body (20) and movable between a second neutral position, in which it is spaced apart from said second disc (21), and an operating position, in which it comes into contact with said second disc so as to exert said second braking torque;
• a second chamber (26, 24) delimited by said second body (20) and housing, on the inside, said at least one second pad (22);
• said motor vehicle (1) comprising a braking control system (10, 10′) operatively connected to said first control member (7);
• said braking control system (10, 10′) comprising, in turn:
• a first fluidic line (50) fluidically connected to said first control member (7) and to said first chamber (23) and designed to house said operating liquid;
• a second fluidic line (61, 60) fluidically connected, at least in an indirect manner, to said first control member (7) and to said second chamber (26, 24) and designed to house said operating liquid;
• said first control member (7) being capable of being operated so as to raise the pressure of said operating liquid inside said first and second fluidic line (50, 51;
• 61, 60) and to move said first pad (22) from said first neutral position to said first operating position and said second pad (22) from said second neutral position to said second operating position;
• characterized in that it comprises:
• a third fluidic line (150, 150′) fluidically connected to said first chamber (23);
• and
• a first control valve (151, 151′) selectively movable between:
• a first position, in which it fluidically connects said third fluidic line (150, 150′) to said second fluidic line (61, 60) and fluidically isolates said second fluidic line (61, 60) from said second chamber (26, 24);
• a second position, in which it fluidically isolates said third fluidic line (150, 150′) from said second fluidic line (61, 60) and fluidically connects said second fluidic line (61, 60) to the relative second chamber (26, 24);
• and
• a control unit (45, 45′) programmed to acquire an active or deactivated operating state of said first control member (7) and a plurality of operating parameters of said motor vehicle (1);
• said control unit (45, 45′) being further programmed to move said first control valve (151, 151′) from said second position to said first position for a limited amount of time, when said first control member (7) is in the deactivated operating state and when said parameters exceed respective predetermined threshold values.