System for mixing cabin air and outside air of air-conditioner for vehicle and method of controlling the same

Abstract

A system and a method for mixing cabin and outside air of a vehicle air-conditioner may include a housing having cabin and outside air inlets for ventilating the cabin and outside air, a first door part to selectively cover at least a portion of the cabin air inlet and / or a portion of the outside air inlet to adjust an open value of each of the inlets, a second door part to selectively cover the remaining portion of the outside air inlet to adjust the open value of the outside air inlet, a cam part rotatable in the housing and formed with first and second slots to which the first and second door parts are slidably coupled such that rotation angle of the first or the second door part is varied according to rotation of the cam part, and a controlling unit controlling the rotation of the cam part.

Description

technical field [0001] The present invention relates to a system for mixing cabin air and outdoor air of an air conditioner for a vehicle capable of supplying comfortable air to the interior of a vehicle in consideration of carbon dioxide and humidity in the vehicle, and a control method thereof. Background technique [0002] Generally, a vehicle is equipped with an air conditioner and a heating and cooling system to supply cool or warm air to the interior of the vehicle. The air conditioner described above may selectively control whether to perform an outdoor air mode in which air discharged into a room introduces outdoor air, or a cab air mode in which air in a cab is circulated. [0003] For this, the air conditioner is installed with a cab air and outdoor air door capable of selectively opening or closing the cab air inlet and the outdoor air inlet. [0004] In the related art air conditioner, the cab air inlet and the outdoor air inlet are formed to selectively close t...

AI Technical Summary

Problems solved by technology

In the case of the above-mentioned environment-friendly vehicles, the energy is significantly consumed by the air conditioner using the power, especially by the loss of ventilation

However, since the technology of controlling air conditioners used in existing eco-friendly vehicles only partially introduces cabin air under certain conditions such as low vehicle speed, high air volume, etc., there is a limit in preventing loss of ventilation

[0008] In addition, even when the cabin air and the outdoor air are introduced at the same time, as the running speed of the vehicle increases, the outdoor air is not introduced to the blower side, and flows back into the interior of the vehicle due to the pressure difference, causing the passenger seat occupant may feel cold in his / her knees and the heating and cooling performance of the vehicle interior may be reduced

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