KR100231565B1 - Air conditioning apparatus and control method therefor of an automobile - Google Patents

Abstract

According to the present invention, since the air discharged to the interior of the conventional vehicle air conditioning system is temporarily discharged to the ventilation grill of the driver's seat and the passenger seat, the driver and the passenger of the passenger seat may not realize this when they want different temperatures. For the purpose, between the cooling water temperature sensor 210 for detecting the cooling water temperature, the outdoor air temperature sensor 220 for detecting the temperature of the outside air, the operation unit 230 for setting the desired temperature of the driver's seat and the passenger seat, and between the driver's seat and the passenger seat. A heat exchanger 100 installed to exchange heat between the air at the driver's seat and the passenger seat side, a heat exchanger controller 270 controlling the heat exchanger 100, the coolant temperature sensor 210, and the outside air temperature sensor ( And a control unit 200 for receiving a signal from the control unit 230 and outputting an appropriate control signal to the heat exchanger control unit 270. Device and its control method.

Description

Automotive air conditioning and control method

The present invention relates to a vehicle heating and cooling apparatus and a control method thereof, and more particularly to a vehicle heating and cooling apparatus capable of independently controlling the temperature of the driver's seat and the passenger seat.

In general, a car has a heating and cooling system to secure a driver's watch for safe and comfortable driving by ensuring that a person who rides in a car has a pleasant environment under all weather and driving conditions, and also prevents windshields and frosts. Is installed.

In order to achieve this purpose, the automotive air conditioner must maintain an appropriate temperature, humidity and air flow, and must also be able to maintain clean air.

In addition, the glass in front, rear, left and right should be prevented from becoming blurred or frosted.

Referring to FIG. 1, a conventional automotive air conditioning apparatus is as follows.

Automotive air conditioning system is equipped with various control switches (blower control, wind direction control, temperature control, etc.) installed in the instrument panel 10 of the driver's seat, the heater unit 20 for heating, the cooling unit 30 for cooling and the wind It is composed of a blower unit 40 and the like to blow.

In detail, an air duct 42, which is a passage through which air flows, is installed inside the instrument panel 10 in the vehicle interior, and the heater unit 20 is mounted on the air duct 42, and the cooling unit 30 is also provided. ) And a blower unit 40 are assembled with the heater unit 20.

Ventilation grills 52 and 54 for discharging the air flowing through the air duct 42 to the vehicle compartment are usually installed on the front surface of the instrument panel 10.

The ventilation grilles 52 and 54 are divided into a side grille 52 on the driver's side and a passenger's side and a center grill 54 between the driver's seat and the passenger's seat, and a defroster outlet for removing frost of the windshield grass. 56, and the like.

Referring to Figure 1 illustrates the operation of a conventional automotive air conditioning unit as follows.

When the air conditioning unit is operated, air is blown into the duct 42 by the blower unit 40, and the air is brought into a proper state in the heater unit 20 and the cooling unit 30, and the ventilation grills 52 and 54 are removed. It is supplied to the cabin through.

That is, in the above-described conventional automotive air conditioning apparatus, the air discharged into the room is temporarily discharged to the ventilation grille of the driver's seat and the passenger seat, so that air of the same temperature is discharged to the driver's seat or the passenger seat.

Therefore, when the driver and the passenger of the passenger seat wants a different temperature, there is a problem that this can not be realized in a conventional automotive air conditioning system.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a heating and cooling device for a vehicle that can control the driver's seat and the passenger seat at different temperatures and a control method thereof.

1 is a perspective view showing a conventional automotive air conditioning unit,

Figure 2 is a perspective view showing the attachment position of the heat exchanger of the vehicle air conditioner according to the present invention,

3 is a schematic view showing a heat exchanger which is a main part of the present invention;

Figure 4 is a block diagram showing the configuration of a vehicle heating and cooling device according to the present invention,

5 is a flowchart illustrating a control method of a vehicle heating and cooling device according to the present invention.

* Explanation of symbols on main parts of the drawings

100: heat exchanger 101: body

102: refrigerant pipe 104: coolant pipe

106: partition 108: sliding plate

110: blower 112: driver's side vent

114: passenger seat side vent 200: control unit

210: cooling water temperature sensor 220: outside temperature sensor

230: operation unit 240: sliding plate driving unit

250: blower drive unit 260: air conditioner drive unit

270 heat exchanger control unit

Referring to the configuration of the present invention for achieving the above object is as follows.

It is a feature of the present invention to provide a heat exchanger between the driver's seat and the passenger seat to control the left and right temperatures differently.

That is, the vehicle air conditioner according to the present invention is installed between the cooling water temperature sensor for detecting the cooling water temperature, the outdoor air temperature sensor for detecting the temperature of the outside air, the operation unit for setting the desired temperature of the driver's seat and the passenger seat, and between the driver's seat and the passenger seat. A heat exchanger for exchanging heat between the air of the driver's seat and the passenger seat, a heat exchanger control unit controlling the heat exchanger, a coolant temperature sensor, the outside air temperature sensor, and a control unit, and receiving appropriate signals to the heat exchanger control unit. It comprises a control unit for outputting.

Here, the heat exchanger separates the ducts formed on both sides of the driver's seat vent and the passenger seat vent, the refrigerant pipe passing through the interior of the duct, the cooling water pipe passing through the interior of the duct, and the refrigerant pipe and the cooling water pipe. And a sliding plate installed at a right angle to the partition and movable up and down, and a bidirectional blower installed at a side of the sliding plate.

And the control method of the automotive air conditioning system according to the present invention comprises the steps of starting the program stored in the control unit when the vehicle is started, determining whether the coolant temperature is above a certain temperature, and if the coolant temperature is above a certain temperature, Determining a desired temperature of the passenger seat; determining whether the outside air temperature received from the outside air temperature sensor is lower than an average of the set temperatures of the driver's seat and the passenger seat; and wherein the outside temperature is greater than the average of the set temperatures of the driver's seat and the passenger seat. Moving the sliding plate toward the refrigerant pipe if it is low, moving the sliding plate toward the air conditioner pipe if the outside temperature is higher than the average of the set temperatures of the driver's seat and the passenger seat, and the set temperature of the driver's seat is greater than the set temperature of the passenger seat. Determine if it is low and turn the blower Determining the direction and speed of rotation and comprises a step of controlling the fan accordingly.

Therefore, according to the present invention, if the temperature of the driver's seat is to be kept lower than the passenger seat, the passenger's side can be cooled and blown to the driver's seat to achieve this.

In addition, if you want to maintain the temperature of the driver's seat higher than the passenger seat, it is possible to achieve this by heating the air on the passenger seat side and blowing it to the driver's seat side.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

Figure 4 is a block diagram showing an embodiment to which the present invention is applied to describe the air-conditioning device for a vehicle according to the present invention with reference to the following.

The coolant temperature sensor 210, the outside temperature sensor 220, and the operation unit 230 are electrically connected to an input side of the control unit 200, and the heat exchanger control unit 270 and the air conditioner driving unit 260 are electrically connected to the output side. .

The sliding plate driver 240 and the blower driver 250 are connected to the output side of the heat exchanger controller 270.

Of course, it is also possible to control the sliding plate driver 240 and the blower driver 250 directly connected to the control unit 200.

The heat exchanger will be described with reference to FIGS. 2 and 3 as follows.

The heat exchanger 100 is installed at the lower part between the driver's seat and the passenger seat, that is, at the rear of the audio unit and the ash tray.

In detail, both side surfaces of the body 101 of the heat exchanger 100 are formed with a driver's side vent 112 and a passenger seat side vent 114, respectively, inside the body 101 a refrigerant pipe 102 and Cooling water pipe 104 passes.

A partition 106 is installed between the refrigerant pipe 102 and the coolant pipe 104, and a sliding plate 108 that is movable up and down at approximately right angles is installed at the side of the partition 106.

In addition, the side of the sliding plate 108 is provided with a blower 110 that can be rotated in both directions.

Referring to Figures 3, 4 and 5 the operation of the embodiment according to the present invention described above is as follows.

When the vehicle is started, the vehicle air conditioner according to the present invention is activated (S0).

And if the cooling water temperature is less than a certain temperature (X) it can not have the effect of heating is operated only when the cooling water temperature is above a certain temperature (X) (S10).

Next, desired temperatures TL and TR of the driver's seat and the passenger seat are set (S20), and the outside air temperature T0 is input from the outside air temperature sensor 220 (S30).

Then, it is determined whether the average value (TL + TR) / 2 of the temperature set value is higher or lower than the outside temperature T0 (S35).

If the outside air temperature (T0) is lower than the average value of the temperature set value ((TL + TR) / 2), the heating is required to move the sliding plate 108 upward so that the air passes through the coolant pipe 104 (S40) ), If the outside temperature (T0) is higher than the average value ((TL + TR) / 2) of the temperature set value, the air must be cooled so that the air is driven by moving the sliding plate 108 downward and operating the air conditioner driver 260 To pass through the pipe 102 (S50).

Then, by comparing the driver's seat set temperature TL and the passenger seat set temperature TR (S60), the rotation speed and the rotation direction of the blower 110 are determined to control the blower 110 (S70).

That is, in the case of cooling, when the driver's seat side setting temperature (TL) is lower than the passenger seat side setting temperature (TR), the rotation direction of the blower 110 is determined so that air flows from the passenger seat side to the driver's seat side, and the driver's seat setting temperature (TL) is If the passenger seat side higher than the set temperature (TR), the rotation direction of the blower 110 is reversed.

That is, if the driver's seat temperature TL is lower than the passenger seat side temperature (TR), the air on the passenger seat side heats up when passing through the refrigerant pipe 102, the temperature decreases and is supplied to the driver's seat to maintain the driver's temperature lower than the passenger seat. Done.

At this time, the rotational speed of the blower 110 is proportional to the difference between the driver's seat set temperature (TL) and the passenger seat set temperature (TL).

On the other hand, in the heating mode, the direction of the blower 110 is controlled as opposed to the case of cooling.

Referring to the effects of the embodiment according to the present invention described above are as follows.

According to the present invention described above, since it is possible to independently control the temperature on the driver's seat side and the passenger's seat side, there is an advantage that the convenience of the occupant increases and the merchandise of the vehicle increases.

The present invention has been described above only one embodiment, but as can be seen in the appended claims, those skilled in the art to which the present invention pertains may be modified without departing from the spirit of the present invention. It will be understood that it belongs to the scope of the invention.

Claims (3)

Cooling water temperature sensor for detecting the cooling water temperature; An outside air temperature sensor for sensing a temperature of outside air; An operation unit for setting desired temperatures of the driver's seat and the passenger seat; A heat exchanger installed between the driver's seat and the passenger seat so that air at the driver's seat and the passenger seat side exchanges heat with each other; A heat exchanger control unit controlling the heat exchanger; A control unit that receives signals from the cooling water temperature sensor, the outside air temperature sensor, and the operation unit and outputs an appropriate control signal to the heat exchanger controller; Automotive air conditioning unit including. The method of claim 1, wherein the heat exchanger A duct formed on both sides of the driver's seat vent and the passenger seat vent; A refrigerant pipe passing through the inside of the duct; A cooling water pipe passing through the inside of the duct; A partition separating the refrigerant pipe and the cooling water pipe; A sliding plate installed on the partition at substantially right angles and movable up and down; Automotive cooling apparatus comprising a two-way blower installed on the side of the sliding plate. Starting a program stored in the control unit when the vehicle is started; Determining whether the cooling water temperature is above a predetermined temperature; If the cooling water temperature is above a predetermined temperature, setting a desired temperature of the driver's seat and the passenger seat; Determining whether the outside air temperature received from the outside air temperature sensor is lower than an average value of the set temperatures of the driver's seat and the passenger seat; Moving the sliding plate toward the refrigerant pipe when the outside temperature is lower than an average of the set temperatures of the driver's seat and the passenger seat; Moving the sliding plate toward an air conditioner pipe when the outside temperature is higher than an average value of the set temperatures of the driver's seat and the passenger seat; Determining whether the setting temperature of the driver's seat is lower than the setting temperature of the passenger seat, determining the rotation direction and the rotation speed of the blower, and controlling the blower accordingly. Control method of a vehicle heating and cooling device comprising.