System and method for controlling air ventilation volume of vehicle seat

A method for controlling an air ventilation volume of a vehicle seat, the method comprising:

• measuring, by a plurality of body pressure sensors mounted in a seat back and a seat cushion of the vehicle seat, a body pressure distribution of a passenger to portions of the seat back and the seat cushion contacting passenger's body parts;
• measuring, by a plurality of temperature sensors mounted in the seat back and the seat cushion of the vehicle seat, seat surface temperatures of the portions of the seat back and the seat cushion contacting the passenger's body parts;
• detecting, by a controller, an actual sweat generation rate or relative humidity difference between the passenger's body parts corresponding to the actual body pressure distribution to the portions of the seat back and the seat cushion contacting the passenger's body parts, measured by the body pressure sensors, and the actual seat surface temperatures of the portions of the seat back and the seat cushion contacting the passenger's body parts, measured by the temperature sensors, using a human model unit configured to construct reference data about a sweat generation rate or relative humidity difference between passenger's body parts, which is changed for a predetermined time based on a passenger body pressure distribution and seat surface temperatures, through experiments;
• executing, by the controller, a concentrated distribution mode executed so as to concentrate the air ventilation volume on a passenger's body part having a high sweat generation rate and a high relative humidity when the detected actual sweat generation rate or relative humidity difference between the passenger's body parts is greater than a reference value;
• and
• executing, by the controller, a uniform distribution mode executed so as to uniformly distribute the air ventilation volume to the passenger's body parts when the detected actual sweat generation rate or relative humidity difference between the passenger's body parts is not greater than the reference value.