KR101127465B1 - The control method for controlling air-blowing direction in the vehicle - Google Patents

Abstract

An object of the present invention is to provide a vehicle blowing direction control method for controlling the air conditioning wind blowing toward the occupant by detecting the occupant of the occupant with the infrared sensor, when the maximum cooling mode is turned on (on), In order to achieve the present invention, the present invention provides a sensing unit for detecting a temperature distribution in a vehicle interior, a driving unit for changing a blowing direction of a blowout port formed in the vehicle interior, and a control unit for outputting a control signal to change the blowing direction. The control unit may determine whether to ride the occupant from the temperature distribution detected by the sensing unit in the maximum cooling mode, and if the occupant is present, to control the driving unit to blow cold air toward the occupant. Provided is a vehicle blowing direction control method.

Description

The control method for controlling air-blowing direction in the vehicle}

1 is a block diagram showing the transmission of the electrical signal of the vehicle blowing direction control apparatus for implementing a vehicle blowing direction control method according to an embodiment of the present invention,

FIG. 2 is a schematic partial perspective view showing the inside of a vehicle provided with the vehicle air blowing direction control device of FIG. 1, which schematically shows that the detector receives infrared rays generated by the passengers,

3 is a flowchart illustrating a control step of a vehicle blowing direction control method according to an embodiment of the present invention;

4 is a front view of the first and second center vent blowout parts provided with louvers,

5 is a cross-sectional view taken along the line A-A of FIG.

Explanation of symbols on the main parts of the drawings

100: vehicle blowing direction control device 110: detection unit

120: control unit 130: drive unit

141, 142: Vent outlet of 1st and 2nd center

143, 144: 1st, 2nd side vent outlet

171: step motor                 

181, 182: louver at the 1st and 2nd center vent outlet

183, 184: Louver at the 1st and 2nd side vent outlet

The present invention relates to a vehicle blowing direction control method, and more particularly, when the maximum cooling mode is turned on (on), the vehicle blowing direction for controlling the air conditioning wind blowing toward the occupant by detecting whether the occupant of the ride with an infrared sensor It relates to a control method.

Typically, a vehicle is provided with an air conditioner for providing a comfortable ride to the occupants by maintaining the indoor temperature in an appropriate state by heating or cooling the inside and outside air to enter or circulate into the interior of the vehicle. Such a vehicle air conditioner includes a cooling device for cooling the interior of a vehicle and a heating device for heating the interior of the vehicle. The cooling device is configured to cool the interior of a vehicle by heat exchange between an evaporator and an indoor / outdoor period in which a heat exchange medium discharged by driving a compressor is circulated back to the compressor through a condenser, a receiver dryer, an expansion valve, and an evaporator. In contrast, the heating device is configured to heat the interior of the vehicle by introducing cooling water into the heater and exchanging heat with the outdoor air.

However, in a hot summer, when the driver rides the car, the air conditioner is set to the maximum cooling mode in order to lower the temperature of the interior of the car in a short time. At this time, the occupant must manually adjust the blowing direction of the outlets formed in the interior of the vehicle. In particular, since the air-conditioning air blown from the air conditioner is not directed to the face portion where the occupant feels the most heat, it is inconvenient for the occupant to manually adjust the rotation angles of the louvers before or during the driving. There is this.

The present invention to solve the above problems, when the maximum cooling mode is turned on (on), by detecting the occupant of the occupant with an infrared sensor, to provide a vehicle air blowing direction control method for controlling the air conditioning air blowing toward the occupant It aims to do it.

In order to achieve the above and other objects, the present invention provides a sensing unit for detecting the temperature distribution of the vehicle interior, a drive unit for changing the blowing direction of the blowout formed in the vehicle interior, and the drive unit changes the blowing direction And a control unit for outputting a control signal so that the control unit, in the maximum cooling mode, determines whether the occupant is riding from the temperature distribution detected by the sensing unit, and if there is a passenger, cool air toward the occupant. It provides a blowing direction control method for a vehicle, characterized in that for controlling the driving unit to blow.

In the present invention, the control unit stores the blowing direction before the maximum cooling mode is turned on, and when the maximum cooling mode is turned off, the maximum cooling mode is turned on when the maximum cooling mode is turned off. It is preferable to control the drive section to return to the direction before turning on.

In addition, in the present invention, the sensing unit is preferably an infrared sensor.

In the present invention, the control unit, after determining the face position of the occupant from the temperature distribution input from the detection unit, it is preferable to control the drive unit to blow cold air to the face position.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a block diagram showing the transmission of the electrical signal of the vehicle blowing direction control apparatus for implementing a vehicle blowing direction control method according to an embodiment of the present invention. The vehicle blowing direction control apparatus 100 includes a detector 110 that detects a temperature distribution of a vehicle interior, a driver 130 that changes a blowing direction of a blowout port formed in the vehicle interior, and a detector in a maximum cooling mode. The controller 120 may be configured to determine whether the occupant is riding from the detected temperature distribution, and if the occupant is present, to blow cold air toward the occupant.

In addition, FIG. 2 is a schematic perspective view of a vehicle interior, which schematically illustrates that the detector 110 receives infrared rays generated from the passengers 151 and 152.

As shown, the detector 110 is disposed above the dash panel 165 in the vehicle interior and is a two-element type infrared sensor. Each element may detect a thermal image of 15 × 10 and independently detect the driver's seat occupant 151 and the passenger seat occupant 152. Accordingly, the detector 110 independently receives infrared rays emitted from the driver's seat occupant 151 and the passenger seat occupant 152 and transmits the temperature distribution of the vehicle interior to the controller 120. However, the arrangement position and specification of the infrared sensor are not limited to the above.

The controller 120 analyzes the temperature distribution of the vehicle interior received from the detector 110. From this, the driver's and passenger's seats are first analyzed. In addition, if it is determined that there is a passenger, it performs a function to determine the position of the face portion of the body portion of the occupant. In addition, the control unit 120 outputs an electrical signal corresponding to the driving unit 130 so that the direction of the blowing air toward the face position of the occupant.

In the vehicle blowing direction control apparatus 100, various types of driving units may be used. In the present embodiment, as an example of the driving unit, the step motors 171 are used. The step motors 171 rotate the louvers 181, 182, 183, and 184 installed in the vent outlets 141, 142, 143, and 144 formed in the vehicle interior according to the output signal of the controller. Change the angle Generally, the vent outlet includes first and second center vent outlets 141 and 142 and first and second side vent outlets 143 and 144. Referring to FIG. 2, the first and second center vent outlets 141 and 142 are formed at the center portion of the dash panel of the vehicle interior, and the first and second side vent outlets 143 and 144 are the vehicle. It is formed adjacent to the side windows of the driver's seat and the auxiliary seat.                     

4 is a front view of the first and second center vent outlets 141 and 142 provided with louvers, and FIG. 5 is a cross-sectional view taken along the line A-A of FIG.

Although only the louver 181 installed in the first center vent outlet 141 and the step motor 171 driving the same are illustrated in FIG. 5, the second center vent outlet and the first and second side vent outlets are illustrated. Even in the case of the arranged louvers 182, 183, and 184, they have the same drive mechanism.

4 and 5, the louver 181 is formed at an end portion of the first center vent blowout part 141. The louver 181 is disposed at a horizontal portion 161 in which a plurality of plates 161a are horizontally spaced apart from each other, and disposed at a rear end of the horizontal portion 161, and a plurality of plates (not shown) are spaced apart from each other vertically. It has a vertical portion 162 disposed. The direction of the air conditioning wind is changed up and down by the rotation of the horizontal portion 161 in the up and down direction, and the direction of the air conditioning wind is changed left and right by the rotation in the left and right directions of the vertical portion 162.

One ends of the plates 161a provided in the horizontal part 161 are connected to the connection part 191, and rotate in an up and down direction integrally with the forward and backward movements of the connection part 191. The connection part 191 is connected to the step motor 171, and the connection part 191 rotates the horizontal part 161 of the louver 181 while the connection part 191 moves forward and backward by the rotation of the step motor 171. . In the case of the vertical portion 162 provided in the louver 181, similar to the horizontal portion 161, the rotation angle of the vertical portion 162 may be controlled by using a stepper motor and a connection portion.

Hereinafter will be described a vehicle blowing direction control method according to an embodiment of the present invention.

When the occupant turns on the maximum refrigeration mode (Max A / C mode) in the air conditioner control panel (step S10), the blowing direction control device 100 starts to operate. The blowing direction control apparatus 100 stores the rotation angles of the louvers 181 and 183 installed at the first center vent outlet 141 and the first side vent outlet 143 for air conditioning ventilation of the driver's seat. (Step S21), and the rotation angles of the louvers 182 and 184 installed in the second center vent outlet 142 and the second side vent outlet 144 for air-conditioning air blowing of the passenger seat memory. (Not shown) (S22 step).

Thereafter, the infrared sensors 110 independently detect the temperature distribution of the driver's seat and the passenger seat. The controller 120 analyzes the temperature distribution received from the infrared sensor 110 to determine the presence or absence of occupants of the driver's seat and the passenger seat (step S31) (step S32). If it is determined that there is no occupant in the driver's seat, the rotation angles of the louvers of the first side vent outlet and the louvers of the first center vent outlet are not changed. However, if it is determined that the occupant is in the driver's seat, the position of the occupant's face is analyzed, and an electrical signal corresponding thereto is output to the driver (step S41). The driver 130 changes the rotation angles of the louver 183 of the first side vent outlet and the louver 181 of the first center vent outlet according to the electrical signal output from the control unit 120, so that the air conditioning wind is the occupant of the cockpit. It is to be blown to the face of (S51 step).

Similarly, the control unit 120 does not change the rotation angles of the louver 184 of the second side vent outlet and the louver 182 of the second center vent outlet when determining that there is no occupant in the passenger seat. However, if it is determined that the occupant is in the passenger seat, the position of the occupant's face is grasped and the corresponding electric signal is output to the driver (step S42). The driver 130 changes the angles of rotation of the louver 184 of the second side vent outlet and the louver 182 of the second center vent outlet according to the electrical signal output from the controller 120, so that the air conditioning wind is performed by the passenger of the passenger seat. It is to be blown to the face (step S52).

In addition, even when the occupant's face position is changed, the air conditioning wind is always blown to the occupant's face by changing the rotation angles of the louvers of the ejection openings according to the driving mechanism described above.

However, when the occupant turns off the maximum cooling mode (step S60), the controller 120 outputs an electrical signal corresponding to the past rotational position stored in the memory, and the driver 130 outputs the received electrical signal. Accordingly, the rotation angles of the louvers 181, 182, 183, and 184 of the first and second center vent outlets and the first and second side vent outlets are changed to the rotation angle stored in the memory (S71). (Step S72). That is, in the state before the maximum cooling mode is on, the blowing direction of the air conditioning wind is returned so that the air conditioning wind is blown.

Like reference numerals in the drawings shown above indicate the same members.

The vehicle blowing direction control apparatus according to the present invention has the following effects.

First, when the maximum cooling mode is turned on, the air conditioning wind is automatically blown to the face of the occupant, thereby increasing the comfort of the occupant. In addition, since the passenger does not need to manually operate the louver, the passenger's convenience is improved.                     

Second, since the air-conditioning wind is independently blown to the face of the driver and passengers, the system can be efficiently operated.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (4)

A sensing unit for sensing a temperature distribution in a vehicle interior, a driving unit for changing a blowing direction of a blowout port formed in the vehicle interior, a control unit for outputting a control signal to change the blowing direction, and The control unit, In the maximum cooling mode, it is determined whether or not the occupant of the occupant from the temperature distribution sensed by the detection unit, and if there is a occupant, controlling the drive unit to blow cold air toward the occupant, The control unit, Remembers the blowing direction before the maximum cooling mode is on, And when the maximum cooling mode is off, controlling the driving unit to return the blowing direction of air conditioning wind to a direction before the maximum cooling mode is turned on. delete The method of claim 1, Blowing direction control method for a vehicle, characterized in that the sensor is an infrared sensor. The method of claim 1, wherein the control unit, And determining the face position of the occupant from the temperature distribution input from the sensing unit, and controlling the driving unit to blow cold air to the face position.

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