KR20100091658A - Dual zone type air conditioner for vehicles and its control method - Google Patents

Abstract

PURPOSE: A dual zone type air conditioner for a vehicle and a control method thereof are provided to accurately and minutely control air volume and to reduce noise by controlling an air volume control door. CONSTITUTION: A dual zone type air conditioner for a vehicle comprises multiple air volume control doors(150), a sealing wall(140), an auxiliary partition(160), and a controller. The air volume control doors are installed between an evaporator(101) and a blower(10) and control the amount of air. The sealing wall is formed between the air volume control doors and divides the air volume control doors. The auxiliary partition is formed between the air volume control doors and the evaporator. The controller supplies set air to a driver seat and a passenger seat by driving the air volume control doors.

Description

Dual zone type air conditioner for vehicles and its control method

The present invention relates to an independent left and right air conditioner for a vehicle and a control method thereof. More specifically, two air volume control doors are provided on an air inlet side of an air conditioning case with a uniform cross-sectional area of an air flow passage. And installing a sealing wall therebetween, and installing an auxiliary separation wall between the air volume control door and the evaporator, and when the set air volume of the driver's seat and the passenger's seat is different, the air volume is selected as the number of stages of the blower. By controlling the control door to supply the set air volume to the driver's seat and the passenger's seat, it is possible to precisely control the left and right air volume, reduce the noise according to the position of the air volume control door, and also control the air volume control door at a uniform passage section. Is installed so that the operating position setting value of the air volume control door on the driver's seat and passenger's side can be used symmetrically. Each setting value can be used without change, which can shorten the development period of the air conditioning system, simplify the operation logic of the air volume control door, and prevent vehicle errors. And a control method thereof.

The air conditioner of the vehicle is a vehicle's interior that is installed for the purpose of securing the driver's front and rear view by removing the frost that is caught in the windshield during rainy or winter seasons. Such an air conditioner is usually equipped with a heating device and a cooling device at the same time to selectively introduce the outside air or bet and then heat or cool the air and blow it into the vehicle interior to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit and the heater core unit, the air conditioning apparatus includes a three-piece type in which the three units are independently provided, the evaporator unit and the heater core unit are built in the air conditioning case, and the blower unit is Semi-center type is provided as a separate unit, and all three units can be divided into a center mounting type that is built in the air conditioning case.

On the other hand, recently, so-called left and right independent air conditioners have been applied to allow individual air-conditioning to be made by supplying air of different temperatures to the driver's seat and the passenger seat in the vehicle interior according to the needs of the occupants.

1 is a block diagram showing a conventional left and right independent air conditioning apparatus for a vehicle.

As shown, the left and right independent air conditioner 1 for the vehicle, the air inlet 27 is formed on the inlet side and a plurality of air outlets 28 are formed on the outlet side and the air inlet 27 and the inside An air conditioner case 20 in which air passages 26a and 26b are formed so as to communicate the air discharge ports 28, and an evaporator 2 installed at regular intervals on the air passages 26a and 26b. The heater core 3, the partition wall 30 which divides the downstream air passages 26a and 26b of the evaporator 2 into the left and right air passages 26a and 26b, and the air conditioning case 20. It consists of the blower 10 installed in the air inlet 27 side.

Here, the air conditioning case 20 is divided into left and right cases with respect to the separation wall 30 and assembled with each other.

In addition, between the evaporator 2 and the heater core 3, a temperature control door 25 for temperature control is installed on the left and right air passages 26a and 26b, respectively. Each of the air outlets 28 of the furnaces 26a and 26b is provided with a plurality of mode doors 24 to adjust the opening degree of the corresponding air outlets 28 while controlling various air conditioning modes (vent mode, bi-level mode, floor mode, Mix mode, defrost mode).

In addition, the blower 10 is formed inside and outside air inlet (not shown) that is opened and closed by the internal and external air conversion door (not shown) to selectively enter the internal and external air on the upper side, the inside, A blowing fan 15 for blowing air introduced through the outside air inlet to the air conditioning case 20 is installed.

In addition, the front side of the evaporator 2 so as to independently control the air volume of the air blown from the blower 10 to the left and right air passages 26a and 26b of the air conditioning case 20. One air volume control door 40 is installed.

The conventional left and right independent air conditioning apparatus 1 having the above configuration is cooled while the internal air or the outside air introduced into the air conditioning case 20 by the blower 10 passes through the evaporator 2 ( When the air conditioner is turned on), this air is introduced into the left and right air passages 26a and 26b by the separating wall 30 and then selectively heated by the heater core 3, and then each air passage 26a. It is supplied to the driver's seat or the passenger seat side of the vehicle interior through each air discharge port 28 formed downstream of the (26b) to independently cool and heat the driver's seat or passenger seat space of the vehicle interior.

In addition, control of the temperature control door 25 installed on the left and right air passages 26a and 26b of the air conditioning case 20 and the air volume control door 40 installed at the front side of the evaporator 2, respectively. Through this, it is possible to independently control the temperature and the amount of air discharged to the driver's seat and the passenger seat.

However, the conventional left and right independent air conditioning apparatus 1, as shown in Fig. 1, the airflow control door 40 on the front side of the evaporator 2, the cross-sectional area of the air flow passage is non-uniform, the air flow is relatively uneven. By installing), precise left and right air volume control is difficult and at the same time to control the left and right air volume using a single air volume control door 40, fine air volume control is difficult and the air volume control door 40 is the minimum air volume point When it is located at, there is a problem that noise is generated due to the narrow wind passing area.

And, the air volume control door 40 is installed in a non-uniform passage cross-sectional area, when setting the operating position of the air volume control door 40, first, the driver's seat side (left side) blower stage (for example 1 stage ~ 7 stage) After setting it separately, the passenger seat side (right side) should be set again by the blower stage. In addition, since the driver's seat and the passenger's seat side need to be set again according to the number of blowers for each air conditioning mode, there is a problem that the development period is excessively required when the air conditioner is developed.

An object of the present invention for solving the above-mentioned problems is to provide two air volume control doors and sealing walls between the air inlet side of the air inlet side of the airflow case with a uniform cross-sectional area of the air flow passage. An auxiliary separation wall is installed between the air volume control door and the evaporator, and when the set air volume of the driver's seat and passenger's side is different, the air flow side is selected as the number of blowers, and then the air volume control door is controlled to control the air volume control door. By supplying the set air volume, it is possible to precisely adjust the left and right air volume, reduce the noise according to the position of the air volume control door, and also install the air volume control door at a uniform passage section so that the air volume on the driver's seat and the passenger seat side can be adjusted. The setting position of the adjustment door operating position can be used symmetrically, and the setting value for each air conditioning mode can be used without change. This can shorten the development period of the air conditioning system, and can provide the vehicle left and right independent air conditioning apparatus and control method that can simplify the operation logic of the air volume control door and prevent errors. have.

The present invention for achieving the above object is an air inlet is formed on the inlet side and a plurality of air outlets are formed on the outlet side and the air conditioning case formed in the air passage communicating the air inlet and the air outlet, and the air conditioning case An evaporator and a heater core installed at predetermined intervals on the air passage of the separator, a partition wall installed to partition the left and right air passages downstream of the evaporator, and an outlet connected to an air inlet side of the air conditioning case. In the left and right independent air conditioner for a vehicle comprising a blower for blowing air into the air conditioning case, the air volume installed in the passage between the evaporator and the blower is blown to the left and right air passages of the air conditioning case And a plurality of air volume control doors for adjusting the air volume control doors, and formed between the air volume control doors in the passage. Sealing wall for partitioning between the door, the auxiliary air separation wall formed between the air volume control door and the evaporator to partition the upstream side air passage of the evaporator to the left and right, and the set air volume of the driver's seat and passenger's side passenger In this case, after selecting the one with the higher air volume among the air volume set by each occupant as the number of the blower, it is characterized in that it further comprises a control unit for controlling to supply the set air volume to the driver's seat and the passenger seat by driving the air volume control door. .

In addition, the first step of comparing the number of stages of the driver's seat and the passenger's side blower, and the second stage of selecting the stage of the driver's side and the passenger's side as the blower stage And, if the driver side blower stage is higher than the passenger seat side blower stage, as a result of the comparison of the first stage, the third stage of selecting the driver side stage as the blower stage and the comparison result of the first step, and the passenger seat side blower stage If it is higher than the blower stage, it comprises a fourth step of selecting the passenger stage side stage as the blower stage.

According to the present invention, two air volume control doors and a sealing wall are provided on the air inlet side of the air inlet case of the airflow passage having a uniform cross-sectional area of the air flow passage, and an auxiliary space between the air flow control door and the evaporator. In addition to installing a separation wall and setting the air volume of the driver's seat and passenger's side, the air volume control door is controlled to supply the driver's seat and the passenger's side set air volume by selecting the number of blowers as the number of blowers. The left and right air volume can be adjusted and the noise according to the position of the air volume control door can be reduced.

In addition, by installing an auxiliary separation wall between the air volume control door and the evaporator to prevent mixing of the left and right air separated from the air volume control door, it is possible to implement a complete left, right air volume control system.

In addition, by installing the airflow control door at a uniform passage section, the airflow control door operating position setting value of the driver's seat and the passenger's seat can be used symmetrically, and the air conditioning mode setting value can be used without change. In addition to shortening the period, the operation logic of the airflow control door can be simplified and errors can be prevented.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In addition, repeated description of the same configuration and operation as in the prior art will be omitted.

2 is a block diagram showing the left and right independent air conditioner for a vehicle according to the present invention, Figure 3 is a perspective view showing a case in which the left and right independent air conditioner for a vehicle according to the present invention is applied to a semi-center type, Figure 4 is a view 3 is an enlarged perspective view showing a portion where the air volume control door is installed, and FIG. 5 is a cross-sectional view taken along line AA of FIG. 3, and FIG. 6 is a flow rate control door operation when 7 stages of the driver's seat side blower stage and 1 stage of the passenger side side blower stage are selected. Figure 7 is a view showing the position as an example, Figure 7 is a graph measuring the air volume when the driver's seat side blower is fixed to seven stages and the passenger seat side blower stage is variable, Figure 8 is left and right independent air conditioning for vehicles according to the present invention A block diagram showing a control method of the device.

As shown, the left and right independent air conditioner for a vehicle 100 according to the present invention, the air inlet 111 is formed on the inlet side and the defrost vent 121, the face vent 122, the floor vent on the outlet side A plurality of air discharge ports 120 formed of 123 are formed and an air passage case 110 having an air passage formed therein to communicate the air inlet 111 and the air discharge port 120 therein is provided on the air passage. Evaporator 101 and heater core 102, which are installed at regular intervals sequentially, and the separation wall 105 partitioning the downstream air passages of the evaporator 101 into left and right air passages 106a and 106b. And, the outlet 16 is installed to be connected to the air inlet 111 side of the air conditioning case 110 is configured to include a blower 10 for blowing air into the air conditioning case (110).

Here, the air conditioning case 110 is formed by assembling left and right cases (110a) and (110b) divided from each other.

In addition, a temperature control door 130 for temperature control is installed between the evaporator 101 and the heater core 102. The temperature control door 130 is the left and right air passages 106a and 106b. Respectively installed on the air passage to bypass the heater core 102 and to adjust the opening degree of the air passage passing through the heater core 102.

In addition, after passing through the evaporator 101, each of the defrost vent 121 to selectively distribute the coarse air through the heater core 102 to each duct (not shown) in communication with a specific position in the vehicle interior. The face vent 122 and the floor vent 123 are provided with a plurality of mode doors 124 to perform various air conditioning modes.

On the other hand, the blower 10 is formed inside and outside air inlet (not shown) and the outside air inlet 11 which is opened and closed by the internal and external air conversion door (not shown) so as to selectively flow into the upper side, the inside One blower fan 15 is installed to blow air introduced through the internal and external air inlets to the air conditioning case 110.

The air inlet 111 of the air conditioning case 110 has a predetermined length from the side of the air conditioning case 110 to the outlet 16 of the blower 10 so as to be connected to the outlet 16 of the blower 10. It extends to have a straight section.

That is, as shown in the drawing, the inner air passages 141 and 142 of the air inlet 111 are left and right air passages 106a and 106b partitioned by the dividing wall 105 in the air conditioning case 110. It is formed to be perpendicular to the direction. At this time, the air inlet 111 is formed in parallel with the evaporator 101.

In the present invention, a plurality of air flows to the left and right air passages 106a and 106b of the air conditioning case 110 within the passage between the evaporator 101 and the blower 10 to adjust the air volume of the air. Air volume control door 150 is installed.

Preferably, the plurality of air volume control doors 150 are installed in the air inlet 111 with a uniform cross-sectional area of the air flow passage so that the air flow is relatively uniform.

That is, the inner passages 141 and 142 of the air inlet 111 have a uniform cross-sectional area, so that the air flow is relatively uniform compared to other parts of the air conditioning case 110 and thus there is no change in the air volume. It is to install the air volume control door 150 inside.

In addition, a sealing wall 140 is formed inside the air inlet 111, and the sealing wall 140 is formed between the plurality of air volume control doors 150 to control the air volume control doors 150. To partition between them.

The sealing wall 140 is formed to partition the inside of the air inlet 111 up and down, the plurality of air volume control doors 150 is composed of a total of two and partitioned by the sealing wall 140 The upper and lower passages 141 and 142 of the air inlet 111 is installed to operate independently.

Here, the plurality of air volume control doors 150 may be installed in the up, down direction or left and right directions inside the air inlet 111, but in order to increase the cross-sectional area through which air passes, rather than the left and right directions. It is effective to install in the up and down direction.

In addition, the sealing wall 140 is formed to fit the operating range of the air volume control door 150 in the air inlet 111, wherein the sealing wall 140 is the plurality of air volume control door 150 When the upper and lower passages 141 and 142 of the air inlet 111 is independently adjusted, leakage of air is prevented between the upper and lower passages 141 and 142.

On the other hand, the plurality of air volume control doors 150 are independently operated through an actuator 155 installed on the upper and lower sides of the air inlet 111, respectively.

The air volume control door 150 is formed on the rotary shaft 151 vertically installed at the center of the upper and lower passages 141 and 142 of the air inlet 111 and the side of the rotary shaft 151, but the blower It is formed to extend toward the outlet 16 of the (10) is formed of a plate 152 for adjusting the left and right opening degree of the upper and lower passages (141, 142) of the air inlet 111.

At this time, one end of the rotary shaft 151 of the air volume control door 150 installed in the upper and lower passages 141 and 142 of the air inlet 111, respectively, penetrates the upper and lower surfaces of the air inlet 111, respectively. It is connected to the actuator 155.

In addition, an auxiliary separation wall 160 is formed between the air volume control door 150 and the evaporator 101 to divide the upstream side air passages 161 and 162 of the evaporator 101 to the left and the right.

The front end of the auxiliary separation wall 160 is adjacent to the rear side of the rotation shaft 151 of the air volume control door 150, the rear end of the auxiliary separation wall 160 is bent to the evaporator 101 side to the evaporator 101 Adjacent to the front face.

At this time, the rear end of the auxiliary separation wall 160 adjacent to the front surface of the evaporator 101 is located on the same line as the separation wall 105 installed in the air conditioning case 110.

Therefore, the left and right air volume is controlled through the air volume control door 150 to completely separate the left and right air through the auxiliary separation wall 160 formed between the air volume control door 150 and the evaporator 101. Therefore, the left and right air is prevented from being mixed until the air volume adjusting door 150 is separated and adjusted to flow into the left and right air passages 106a and 106b of the air conditioning case 110, thereby perfecting the left and right sides. It is possible to implement a rain volume control system.

In addition, two air volume control doors 150 installed to operate independently in the upper and lower passages 141 and 142 of the air inlet 111 partitioned through the sealing wall 140 are the auxiliary separation walls ( Since it controls the amount of air flowing into the left and right passages (161, 162) of 160, the left and right air volume control more fine than when adjusting the left and right air volume with one air volume control door 150 as in the prior art You can do it.

For example, one air volume control door 150 installed in the upper passage 141 of the air inlet 111 to the right passage 162 of the auxiliary separation wall 160 (the right passage corresponding to one air volume control door). ), The left and right air volume control can be controlled by one air volume control door 150 installed in the lower passage 142 of the air inlet 111 in a state of being fully closed. Of course, it is possible to control the more fine air volume by adjusting the left, right air volume at the same time with two air volume control doors 150.

In addition, in the conventional case, since one air volume control door 40 is used, when the air volume control door 40 is located at the minimum air volume point, the area where wind passes is narrow, and noise is generated. Since the air volume control door 150 is used, the one air volume control door 150 completely closes one side passage of the auxiliary separation wall 160 and the air volume can be adjusted with the other air volume control door 150, thereby providing the minimum air volume. While maintaining the same minimum air volume as in the prior art, the open angle of the air volume control door 150 can be increased by about twice as much as the wind passage area, so that the noise can be reduced.

In addition, the cross-sectional area of the air flow passage is uniform, so that the air flow is relatively uniform, thereby installing the air volume control door 150 inside the air inlet 111 that does not change the air volume can be precisely left, right air volume control .

On the other hand, in the above described only the case where the plurality of air volume control doors 150 are installed inside the air inlet 111, the plurality of air volume control doors 150 to the outlet 16 of the blower 10 It can also be installed inside the side.

The driver's side passenger and the passenger's side passenger control the left and right air volume control switches (not shown) installed in the vehicle interior, respectively, to control the driver's side blower stage and the passenger side side blower stage to set the desired air volume.

As such, the air volume control method on the driver's seat side and the passenger seat side is controlled using the blower stage and the air volume control door 150.

At this time, when the set air volume of the driver's seat and the passenger seat side is different, the air flow control door 150 is driven by selecting the one with the higher air volume from the air volume set by each passenger, and then driving the air volume control door 150 There is provided a control unit (not shown) for controlling to supply.

That is, when the set air volume of the driver's seat and the passenger seat side is different, the controller selects a high stage among blower stages selected by each occupant as the actual stage stage and supplies a voltage corresponding to the high stage stage to the blower 10. It works.

For example, when the driver's side passengers select the air volume blown to the driver's seat as 7 stages, and the passenger's side passengers select the air volume blown to the passenger's side as 1 stage, the controller selects 7 stages with a high stage and corresponds to 7 stages. The voltage is supplied to the blower 10 to operate.

At this time, the driver's seat occupant may be supplied with the desired air volume because the blower 10 operates in seven stages, but the passenger seat passenger may have discomfort because the blower 10 operates in seven stages. have. Therefore, the passenger seat side is to control the air volume control door 150 to lower the air volume to one stage.

As such, since the blower 10 is actually operated by the higher number of blower stages selected by the driver's seat and the passenger seat side, the left and right passages 161 and 162 partitioned by the auxiliary separating wall 160 through the control unit. ) To close the passage of the lower air volume (the lower number of blower stages) with the air volume control door 150 to prevent the air volume from decreasing.

FIG. 6 is a view illustrating an example of an operation position of the airflow control door 150 when the driver's seat side blower stage 7 is selected and the passenger side side blower stage 1 stage is selected. It is operated in seven stages, in which the operating position of the air volume control door 150 is + 52 ° so that the left passage (driver's seat side passage) 161 of the auxiliary separation wall 160 is completely open and the right passage (passenger seat) Side passage) 162 is closed by a certain amount. Therefore, since the blower 10 operates in seven stages, the air volume corresponding to seven stages is supplied to the driver's seat side, and the passenger seat side has only a predetermined amount (a volume corresponding to one stage) opened by the air volume control door 150. Corresponding air volume is supplied.

FIG. 7 is a graph measuring the air volume when the driver's seat blower stage is fixed to 7 stages and the passenger seat side blower stage is variable. As shown, when the number of passenger seat side blowers is varied from 1 stage to 7 stages, the air volume control door is shown. As the operating position of the 150 is varied from the first stage to the seventh stage position, the air volume for the blower stage is supplied.In this case, even if the passenger seat side air volume increases linearly with the blower stage, the driver side wind volume with the fixed blower stage is It can be seen that the air volume of the seven stages is maintained without change. Here, when the operating position of the air volume control door 150 is located in a straight line with the auxiliary separating wall 160 is the passenger seat side seven stages.

On the other hand, for example, when the driver's seat side blower stage is 7 stages and the passenger seat side blower stage is selected as 1 stage, and the driver's seat side blower stage is 7 stages and the passenger seat side blower stage is selected as 7 stages, the blower 10 applied voltage is The same, and the applied voltage according to the number of blowers is changed linearly. That is, in the former, the voltage corresponding to the seventh stage, which is the high stage, is supplied to the blower 10, and in the latter, the voltage corresponding to the seventh stage is supplied to the blower 10 because the same stage of the driver's seat and the front passenger's seat.

And, the control unit is the operating position of the air volume control door 150 when the driver's seat side set air volume (blower stage) and the passenger seat side set air volume (blower stage) is symmetrical, the left and right with respect to the auxiliary separation wall 160 It will be controlled to work symmetrically.

That is, referring to Fig. 6, when the driver's seat side blower stage is seven stages and the passenger seat side blower stage is one stage, the operating position of the air volume control door 150 is + 52 °, on the contrary, the passenger side side blower stage Is 7 stages and the driver's side blower stage is 1 stage, the operation position of the air volume control door 150 is -52 °, and thus the air volume control door ( The operating position of 150 is also symmetrical.

As such, since the air volume control door 150 is installed at a uniform passage cross-section, when setting the operating position of the air volume control door 150 according to the number of blowers in the air conditioner development stage, first, the air volume according to the number of the driver's seat side blowers Once the operating position of the air volume control door 150 is set for adjustment, the operating position setting value of the air volume control door 150 according to the number of blowers on the passenger seat side can be used as it is by symmetrically setting the driver's side.

In addition, the airflow control door 150 operating position setting value of the driver's seat and the passenger seat side can be used as it is without changing, for example, the operating position setting value of the driver's seat and the passenger's side airflow control door 150 in the vent mode is different. It can be used as a setting value of the air conditioning mode.

Therefore, the development period of the air conditioner can be shortened, as well as the operation logic of the airflow control door 150 can be linearized and simplified, and the logic is simplified, thereby preventing errors.

Hereinafter, a control method of the left and right independent air conditioning apparatus for a vehicle according to the present invention will be described.

First, when the passenger on the driver's side and the passenger's side selects the air volume (the number of blowers) by operating the air volume control switch (not shown),

The first step S10 of comparing the driver's seat and the passenger's side blower stage is performed.

As a result of the comparison of the first step (S10), if the number of blowers on the driver's side and the passenger's seat is the same, the second step (S20) of selecting the stage on the driver's side and the passenger's seat as the blower stage,

After the second step S20, the fifth step S50 of positioning the air volume control door 150 in the center of the auxiliary separation wall 160 to supply the same air volume to the driver's seat and the passenger seat side is performed. do.

For example, if the driver's seat side blower stage is 7 stages and the passenger side side blower stage is the same stage 7 stage, the actual blower stage is selected as 7 stages.

In addition, since the air volume of the driver's seat side and the passenger's seat side is the same in seven stages, the operation position of the air volume control door 150 is controlled to be located on the same straight line as the auxiliary separation wall 160, so that the auxiliary separation wall 160 The air volume corresponding to seven stages of the blower stage is supplied to the left and right passages 161 and 162, respectively.

Subsequently, when the comparison result of the first step S10 is higher than the driver's seat side blower stage, the third stage S30 of selecting the driver's seat stage as the blower stage is performed.

After the third step (S30), the right (passenger seat side) 162 of the left and right passages (161, 162) partitioned by the auxiliary separation wall 160 to reduce the passenger seat side air volume. The sixth step S60 of selecting an operating position of the air volume control door 150 to close a predetermined amount is performed.

For example, if the driver's seat side blower stage is 7 stages and the passenger seat side blower stage is 1 stage, the actual blower stage is selected as the high stage stage driver's side stage stage 7 stage.

At this time, the front passenger's side air volume should be reduced to one stage, thereby controlling the operating position of the air volume control door 150 to close the right side (passenger seat side) passage 162 of the auxiliary separation wall 160 to correspond to the first stage blower stage. Only the air flow rate is supplied to the passenger seat. Of course, although the air volume corresponding to the first stage is supplied to the passenger seat side, the air volume corresponding to the seventh stage is constantly supplied to the driver's seat side.

When the passenger seat side blower stage is higher than the driver's seat side blower stage as a result of the comparison in the first step S10, the fourth stage S40 of selecting the passenger seat side stage as the blower stage is performed.

After the fourth step (S40), the left (right driver's side) passage 161 of the left and right passages (161, 162) partitioned by the auxiliary separation wall 160 to reduce the driver's side air volume. Proceed to the seventh step (S70) of selecting the operating position of the air flow control door 150 to close a certain amount.

For example, if the driver's side blower stage is 1 stage and the passenger side side blower stage is 7 stage, the actual blower stage is selected as the high stage passenger side stage 7 stage.

At this time, the driver's seat side air volume should be reduced to one stage, thereby controlling the operation position of the air volume control door 150 to close the left side (driver's seat) passage 161 of the auxiliary separation wall 160 to correspond to the blower stage 1 stage. Only the air flow rate is supplied to the driver's seat. Of course, although the air volume corresponding to the first stage is supplied to the driver's seat side, the air volume corresponding to the seventh stage is constantly supplied to the passenger seat side.

Hereinafter, the air flow process of the left and right independent air conditioning apparatus for a vehicle according to the present invention will be described. Here, only a cooling mode (see FIG. 2) will be described as a representative mode.

First, air blown through the outlet 16 of the blower 10 by the operation of the blower 10 is introduced into the air inlet 111.

The air flowing into the air inlet 111 is separated into the upper and lower passages 141 and 142 of the air inlet 111 by the sealing plate 140, and the air is introduced into the upper and lower passages ( The air volume of the left and right air is controlled by the two air volume control doors 150 installed on the 141 and 142, and the air in which the left and right air volume is adjusted is completely left and right by the auxiliary separation wall 160. After being separated and introduced into the air conditioning case 110, it passes through the evaporator 101.

The air passing through the evaporator 101 is changed to cold air in the process of passing through the evaporator 101, the cold air heat exchanged in the evaporator 101 is in the internal partition wall 105 of the air conditioning case 110. This is distributed to the left air passage 106a and the right air passage 106b.

At this time, the air distributed to the left air passage (106a) and the right air passage (106b) is to be distributed in a state in which the left, right air volume controlled air is continuously separated through the air volume control door 150.

Subsequently, the coldly changed air passing through the evaporator 101 bypasses the heater core 102 by the temperature control door 130, and then vent 121 opened by the mode door 124. By discharging to the vehicle interior through the 122 and 123, the driver's seat and the passenger seat in the vehicle compartment are cooled.

Of course, in the process, the two air volume control doors 150 installed in the air inlet 111 to be operable separately, and the temperature control door 130 installed in the left and right of the separation wall 105 to be operated separately and When the mode door 124 is adjusted independently of each other, the driver's seat and the passenger seat can be independently controlled by the passenger's desired air volume, temperature, and air conditioning mode.

On the other hand, the above has been described only for the cooling mode, in addition to this can be carried out a variety of air conditioning modes, including the heating mode, such a air conditioning mode is known in the detailed description is omitted here.

1 is a block diagram showing a conventional left, right independent air conditioning apparatus for a vehicle,

2 is a block diagram showing an independent left and right air conditioner for a vehicle according to the present invention;

3 is a perspective view showing a case in which the left and right independent air conditioning apparatus for a vehicle according to the present invention is applied to a semi-center type;

Figure 4 is an enlarged perspective view showing a part installed air flow control door in Figure 3,

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

FIG. 6 is a view showing an example of an operation position of the air volume control door when the driver's seat blower stage 7 stage and the passenger seat side blower stage 1 stage are selected;

7 is a graph measuring the air flow rate when the driver's seat side blower stage is fixed to seven stages and the passenger seat side blower stage is varied;

8 is a block diagram illustrating a control method of a vehicle left and right independent air conditioning apparatus according to the present invention.

<Description of Signs of Major Parts of Drawings>

100: air conditioner 101: evaporator

102: heater core 105: separation wall

110: air conditioning case 111: air inlet

120: air outlet 124: mode door

130: temperature control door 140: sealing wall

150: air volume control door 151: rotation axis

152: plate 160: auxiliary separation wall

Claims (8)

An air inlet 111 is formed at the inlet side, and a plurality of air outlets 120 are formed at the outlet side, and the air inlet case 110 has an air passage therein for communicating the air inlet 111 and the air outlet 120. The left and right of the evaporator 101 and the heater core 102 and the downstream air passages 106a and 106b of the evaporator 101 are installed at predetermined intervals on the air passages of the air conditioning case 110. The blower 10 which blows air into the air-conditioning case 110 is installed so that the separation wall 105 is installed to partition to the right, and the outlet 16 is connected to the air inlet 111 side of the air-conditioning case 110. In the left and right independent air conditioning apparatus for vehicles, including) A plurality of air volume control doors installed in the passage between the evaporator 101 and the blower 10 to adjust the air volume of the air blown to the left and right air passages 106a and 106b of the air conditioning case 110 ( 150), A sealing wall 140 formed between each of the air volume control doors 150 in the passage and partitioning between the air volume control doors 150; An auxiliary separation wall 160 formed between the air volume control door 150 and the evaporator 101 to partition an upstream side air passage of the evaporator 101 to the left and the right; If the set air volume of the driver's seat and the passenger seat side is different, the air flow rate control door 150 is driven by selecting the one with the higher air volume from the air volume set by each passenger, and then setting the driver's seat and the passenger seat side. The left and right independent air conditioning apparatus for a vehicle, characterized by further comprising a control unit for controlling the amount of air flow. The method of claim 1, The control unit drives the air volume control door 150 to supply the set air volume to the driver's seat and the passenger's seat, and the left and right passages 161 and 162 partitioned by the auxiliary dividing wall 160 have the smaller air volume. The left and right independent air conditioning apparatus for a vehicle, characterized in that for controlling the amount of air by closing a predetermined amount. The method of claim 1, The controller may control the operating position of the air volume control door 150 to be symmetrically operated left and right with respect to the auxiliary dividing wall 160 when the driver's seat side air volume and the passenger seat side air volume are symmetric. Left and right independent air conditioning units for vehicles. The method of claim 1, The sealing wall 140 is formed to partition the inside of the air inlet 111 up and down, the air volume control door 150 is the upper, the air inlet 111 partitioned by the sealing wall 140, Lower left and right independent air conditioning apparatus for the vehicle, characterized in that it is installed to operate independently of each other (141) (142). A first step (S10) of comparing the driver's seat and the passenger's side blower stage; As a result of the comparison in the first step (S10), if the number of blowers on the driver's side and the passenger's seat is the same, the second step (S20) of selecting the stage on the driver's side and the passenger's seat as the blower stage, A third step (S30) of selecting the driver's seat stage as the blower stage when the driver's seat side blower stage is higher than the passenger seat side blower stage as a result of the comparison in the first step (S10); As a result of the comparison of the first step (S10), if the passenger side blower stage is higher than the driver's side blower stage, the vehicle left and right independent, characterized in that it comprises a fourth step (S40) for selecting the passenger side stage as the blower stage Control method of air conditioning unit. The method of claim 5, After the second step (S20), further comprises a fifth step (S50) for fixing the position of the air volume control door 150 in the center of the auxiliary separation wall 160 to supply the same air volume to the driver's seat side and the passenger seat side. Control method of the left, right independent air conditioning apparatus for a vehicle, characterized in that. The method of claim 5, After the third step (S30), a predetermined amount of the right (passenger side) passage 162 of the left and right passages (161, 162) partitioned by the auxiliary separation wall 160 to reduce the amount of passenger side air flow. And a sixth step (S60) of selecting an operating position of the air volume control door 150 to close. The method of claim 5, After the fourth step S40, a predetermined amount of the left (driver's seat) passage 161 of the left and right passages 161 and 162 partitioned by the auxiliary separation wall 160 to reduce the driver's seat air volume. And a seventh step (S70) of selecting an operating position of the air volume adjusting door (150) to close.

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