Patent ID: 8594910
Filing Date: 2013-11-26
Classification: B60H

Abstract:
1. An apparatus for preventing an inflow of exhaust gas of a vehicle, the apparatus comprising: a mode door provided in an air conditioner of the vehicle to close an air inlet, being in an air-close mode, so that inside air is circulated, or to open the air inlet, being in an air-open mode, so that outer air is introduced into an inside of the vehicle; and a controller designed to control the mode door, wherein the controller tilts and opens the mode door to an angle towards the air-open mode to adjust an inside pressure of the vehicle, when the mode door is in the air-close mode and a vehicle speed is a predetermined vehicle speed or higher, thereby maintaining a substantially constant inside pressure and preventing reverse introduction of exhaust gas due to a drop in the inside pressure of the vehicle and minimizing a decrease in air-conditioning performance.