We claim:

1. A system (100) for regulating an air flow into a cabin (200) of a vehicle from a heating
ventilation and air conditioning system (HVAC) unit (500), the system (100) comprising:
5 a cam (114) operatively coupled to a primary actuator (113), wherein the cam
(114) rotates corresponding to operation of the primary actuator (113);
a plurality of links (10a, 10b, 10c) each defined with a first end (12) and a second
end (14), wherein the first end (12) of the plurality of links (10a, 10b, 10c) is coupled to
the cam (114) and the second end (14) of the plurality of links (10a, 10b, 10c) is provided
10 with flaps (15a, 15b, 15c), wherein the flaps (15a, 15b, 15c) are positioned within air
passages of respective defrost vent (115), chest vent (116), and leg vent (117) of the HVAC
unit (500);
a sensing device (101) disposed in the cabin (200) and configured to measure
temperatures at a plurality of zones of the cabin (200); and
15 a control unit (106) communicatively coupled to the primary actuator (113) and
the sensing device (101), the control unit (106) configured to:
determine, activation of a cabin comfort mode;
receive, from the sensing device (101) an input signal corresponding to
temperatures at the plurality of zones inside the cabin (200);
20 analyze, a discomfort index number for each of the plurality of zones based
on received input signal and determination of activation of the cabin comfort
mode;
determine, a target discharge number to each of the plurality of zones based
on the analyzed discomfort index number; and
25 actuate, the primary actuator (113) to rotate the cam (114), based on the
determined target discharge number, to vary position of the flaps (15a, 15b, 15c)
within air passages to regulate air flow in the respective defrost vent (115), chest
vent (116), and leg vent (117) of the HVAC unit (500).
30 2. The system (100) as claimed in claim 1, wherein the plurality of zones inside the cabin is
defined as a top