KR20130141114A - Air conditioning system for automotive vehicles - Google Patents

Abstract

The present invention relates to a vehicle air conditioner, and more particularly, it relates to a vehicle air conditioner which can effectively improve the air quality of a vehicle interior by organically interlocking the air purifier and the electric air conditioning apparatus and can prevent the air conditioner from being deteriorated even when the air cleaner is forcibly turned off. So that the air in the passenger compartment can be comfortably maintained at all times.
In order to attain the above object, the present invention provides an air purifier comprising: an air purifier capable of purifying air in a passenger compartment; a control unit for controlling the air purifier according to the concentration of the toxic gas contained in the passenger compartment air; An air conditioner for an automotive air conditioner, comprising: an air conditioner; an air conditioner for an electric vehicle including an intake door for controlling an amount of opening of inner and outer air intakes; and a blower for sucking in and outside air to blow air into the passenger compartment, When the concentration of the noxious gas contained in the air in the interior of the vehicle is equal to or higher than a preset reference concentration, the air purifier is operated while entering the purification mode, and the intake door of the air conditioning apparatus is controlled to increase the outdoor air introduction rate . When the air purifier is forcibly turned off, the control unit increases the opening amount of the intake door relative to the outdoor air inlet to a level higher than that when the air purifier is in the purification mode while entering the compensation purifying mode, Is increased more than in the purge mode.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioning system for an automobile,

The present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner for an air conditioner and an air conditioner for an air conditioner, The air in the passenger compartment can be kept comfortable at all times.

BACKGROUND ART [0002] A recent air conditioner for a vehicle has various convenience devices for enhancing the comfort of a car interior. As an example thereof, there is an air purifier for enhancing the air quality in a passenger compartment.

1, the air purifier includes an air purifier 10 installed at a rear portion of a vehicle cabin and a controller 20 for controlling the air purifier 10.

2, the air cleaner 10 includes an air inlet 12 communicating with the interior of the vehicle, a blower 14 for drawing air in the interior of the vehicle through the air inlet 12, An air filter 16 for filtering air, and an air outlet 18 for discharging the filtered air to the passenger compartment.

Controller 20, the noxious gas contained in the car interior air, for example, carbon monoxide (CO), carbon dioxide (CO _2), the total volatile organic compounds (TVOC), nitrogen oxides Various be detected and the like (NO _X) Gas sensors 22 and a control unit 24 for controlling the air cleaner 10 in accordance with data input from these gas sensors 22. [

Particularly, the control unit 24 is equipped with a microprocessor. When the concentration of various harmful gases inputted from the gas sensors 22 is equal to or higher than the "reference concentration" . The control unit 24, which has been switched to the "purge mode ", activates the air purifier 10. Therefore, the air purification operation in the car interior is started.

The air purifying device having such a structure increases the air quality of the interior of the vehicle when the air in the interior of the vehicle is determined to be contaminated by operating the air cleaner 10 to purify air in the interior of the vehicle. This improves comfort in the vehicle interior.

However, in such a conventional air conditioner, when the occupant in the passenger compartment forcibly turns off the air cleaner 10, the operation of the air cleaner 10 is stopped and the air purifying action in the passenger compartment is drastically reduced There are disadvantages.

As a result, the concentration of harmful gas in the interior of the vehicle gradually increases and the air quality of the interior of the interior of the vehicle is remarkably deteriorated due to such disadvantages.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air purifier that compensates air purifying efficiency of a car interior by controlling the outdoor air introduction rate to the interior of the car when the air purifier is turned off And to provide an air conditioner for a vehicle.

It is another object of the present invention to provide an air purifier which is capable of compensating an air purifying efficiency of a vehicle interior by controlling the outdoor air introduction rate to the vehicle interior when the air purifier is turned off, And to provide an air conditioner for a vehicle that can always keep the indoor air quality pleasantly.

In order to achieve this object, a vehicle air conditioning system of the present invention comprises an air purifier capable of purifying air in a car interior, a control unit for controlling the air purifier according to the concentration of noxious gas contained in the car interior air, The air conditioning apparatus includes an intake door for controlling the amount of opening of the inner and outer air intakes, and a blower for sucking the inside air and the outside air to blow air into the vehicle interior. In the apparatus, when the concentration of the noxious gas contained in the air in the passenger compartment is equal to or higher than a preset reference concentration, the control unit activates the air cleaner while entering the purification mode, and controls the intake door of the electric air- Thereby increasing the outdoor air introduction rate to the interior of the vehicle.

Preferably, the control unit controls the intake door such that the outdoor air introduction rate to the vehicle interior is proportional to the concentration of the noxious gas in the interior of the vehicle in the purge mode.

The control unit controls the blower of the electric air-conditioning unit to increase the air flow rate to the passenger compartment during the purge mode.

The control unit controls the blower so that the air flow rate relative to the passenger compartment is proportional to the concentration of the harmful gas in the passenger compartment in the purifying mode.

And an air cleaner forced off sensing means for sensing the forced OFF of the air cleaner; Wherein the control unit further increases the opening amount of the intake door relative to the outdoor air inlet when the forced OFF signal is input from the air cleaner forced off sensing unit, And the outdoor air introduction rate to the interior of the vehicle is further increased than in the case of the purification mode.

The control unit increases the rotational speed of the blower more than the rotational speed of the blower in the compensation mode, and increases the air flow rate to the inside of the vehicle more than when the mode is the purge mode.

According to the vehicle air conditioner of the present invention, when the air in the vehicle interior is contaminated, the air purifier and the air conditioning apparatus are simultaneously and organically controlled to purify air in the vehicle interior, There is an effect that can be improved.

In addition, when the air cleaner is forcibly turned off, the air conditioning apparatus is compensated and controlled to increase the outside air introduction rate and air volume introduced into the interior of the vehicle. Therefore, even though the air cleaner is forced off, The efficiency is not lowered.

In addition, the air purifying efficiency of the interior of the vehicle is not lowered even though the air cleaner is forcibly turned off. Therefore, regardless of whether the air cleaner is on or off, the air quality in the interior of the vehicle can always be maintained in a comfortable state.

1 is a view showing a conventional air conditioner for a vehicle,
2 is a detailed view of an air purifier constituting a conventional automotive air conditioner,
3 is a view showing a vehicle air conditioner according to the present invention,
4 is a detailed view of a feature of a vehicle air conditioner according to the present invention,
5 is a graph showing changes in the outdoor air introduction rate and the air flow rate when the vehicle air conditioner according to the present invention is controlled in the purge mode and the compensation purge mode,
6 is a flow chart showing an operation example of the air conditioner for a vehicle according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail with reference to the accompanying drawings (the same components as those in the prior art are denoted by the same reference numerals).

3 and 4, an air purifier of a vehicle will be briefly described before a feature of a vehicle air conditioner according to the present invention will be described.

The air purifier includes an air purifier (10) and a controller (20) for controlling the air purifier (10).

4, the air cleaner 10 includes an air inlet 12, a blower 14 for sucking air in the car through the air inlet 12, an air filter 14 for filtering the sucked air, (16), and an air outlet (18) for discharging the filtered air to the passenger compartment.

The controller 20 includes various gas sensors 22 for detecting noxious gases contained in the air in the car interior and a controller for controlling the air cleaner 10 according to data input from the gas sensors 22 24).

In particular, when the various harmful gases inputted from the gas sensors 22 are equal to or higher than the "reference concentration ", the control unit 24 determines that the air in the vehicle interior is contaminated and switches to the" purge mode 24a ". The control unit 24, which has been switched to the "purge mode 24a ", turns on the air purifier 10. Therefore, the air purification operation in the car interior is started.

Next, the characteristics of the air conditioner for a vehicle according to the present invention will be described in detail with reference to FIG. 3 to FIG.

3 and 4, the air conditioner of the present invention is provided with a controller 20 of an air purifying apparatus, and the controller 20 controls the air conditioner 20 such that various kinds of noxious gas inputted from the gas sensors 22 When the temperature is equal to or more than the "reference concentration ", that is, when the mode is switched to the" purge mode 24a "

Particularly, the intake door 32 of the all-round air conditioner 30 is moved to the outside air mode X side to increase the opening amount of the outside air inlet 32a. Therefore, the outdoor air introduction rate to the car interior is increased. This allows fresh outside air to be introduced into the interior of the car. As a result, the air in the passenger compartment is cleaned quickly and quickly together with the air cleaner 10. As a result, the air quality in the passenger compartment is quickly and quickly improved.

Here, the controller 20 controls the intake door 32 of the electric control unit 30 to increase the outside air introduction rate at the time of the "purge mode 24a", and as shown in FIG. 5, And the introduction rate is proportional to the concentration of the harmful gas (A).

That is, as the concentration of noxious gas in the car interior increases, the amount of opening of the intake door 32 to the outside air inlet 32a gradually increases. Therefore, as the concentration of the noxious gas in the car interior increases, the outdoor air introduction rate is increased differentially. Thus, as the concentration of the noxious gas in the interior of the car increases, the air quality of the interior of the passenger compartment is improved while actively coping with it.

To this end, the controller 20 stores in advance "outside air introduction rate" for each "noxious gas concentration". Based on the "outside air introduction rate" for each "noxious gas concentration", the opening amount of the intake door 32 In accordance with the "noxious gas concentration"

Referring again to Fig. 4, the controller 20 also controls the blower 34 of the air conditioning apparatus 30 in the "purge mode 24a".

In particular, the rotational speed of the blower 34 is increased to increase the air volume of the outside air introduced into the passenger compartment. Therefore, a large amount of fresh air can be introduced into the car interior. As a result, the air quality in the passenger compartment is rapidly improved.

Here, the controller 20 controls the blower 34 of the electric control unit 30 to increase the air volume at the time of the "purge mode 24a, " (B).

Accordingly, as the concentration of noxious gas in the car interior increases, the air volume gradually increases. Thus, as the concentration of the noxious gas in the interior of the vehicle increases, it becomes possible to actively cope with it.

To this end, the controller 20 stores in advance "air volume" for each "noxious gas concentration". Based on the "air volume" for each "noxious gas concentration", the rotation speed of the blower 34 is set to " The harmful gas concentration ".

Referring again to FIGS. 3 and 4, the air conditioner of the present invention further includes an air cleaner forced off sensing means 40 for sensing the forced OFF of the air cleaner 10.

The air purifier forced off detection means 40 is constituted by a main power source switch (not shown) for applying and interrupting the main power source of the air cleaner 10.

The main power switch is capable of forcibly turning off the main power source of the air cleaner 10 by the user and detects that the user forcibly turns off the air cleaner 10 and outputs the detected & S) "to the control unit 24 of the controller 20. [

On the other hand, the controller 24 of the controller 20 keeps the concentrations of the various noxious gases inputted from the gas sensors 22 even if the "forced off signal S" is input from the air purifier forced off sensing means 40 .

At this time, when the concentrations of the various harmful gases inputted from the gas sensors 22 are equal to or higher than the "reference concentration ", the control unit 24 compulsorily turns off the air purifier 10, It is judged that the air purification operation is stopped.

In accordance with this judgment, the mode is switched to the "compensated purge mode 24b" in order to compensate the OFF state of the air cleaner 10. The control section 24 which has been switched to the "compensation purifying mode 24b" further moves the intake door 32 of the electric vehicle air conditioning apparatus 30 to the outside air mode X side to increase the opening amount of the outside air inlet 32a .

Particularly, the amount of opening of the outer air inlet 32a is further increased by further moving to the outside air mode (X) side than in the "purge mode 24a ". Therefore, the outdoor air introduction rate introduced into the passenger compartment is further increased than in the "purification mode 24a ".

As a result, more ambient air can be introduced into the passenger compartment. As a result, it is possible to compensate for the stop phenomenon of the air purifying operation in accordance with the OFF state of the air cleaner 10. Accordingly, even though the air cleaner 10 is forcibly turned off, the air quality in the passenger compartment can be kept clean.

On the other hand, the control section 24 stores in advance the "outside air introduction rate" for each "noxious gas concentration" corresponding to the "compensated purification mode 24b ". As shown in FIG. 5, the "outside air introduction rate" for each "noxious gas concentration" at the time of the "compensation purge mode 24b" Quot; rate "

Therefore, the control unit 24 can introduce a larger amount of outside air into the passenger compartment than in the " purge mode 24a "at the time of the" compensated purifying mode 24b. &Quot; As a result, despite the forced OFF state of the air cleaner 10, the stopping phenomenon of the air purifying action can be sufficiently compensated.

4, the controller 24 of the controller 20 performs compensation control of the blower 34 of the electric vehicle air conditioning apparatus 30 when entering the "compensation compensation mode 24b" .

In particular, the rotational speed of the blower 34 is further increased than in the case of the "purge mode 24a ", thereby further increasing the air volume of the outside air introduced into the car interior. Therefore, the air volume introduced into the car interior is further increased than in the case of the "purge mode 24a ".

This allows more air volume to be introduced into the passenger compartment. As a result, it is possible to compensate the stop phenomenon of the air purifying operation according to the forced OFF state of the air cleaner 10. Accordingly, even though the air cleaner 10 is forcibly turned off, the air quality in the passenger compartment can be kept clean.

On the other hand, the control unit 24 stores in advance "air volume" for each "noxious gas concentration" corresponding to the "compensation compensation mode 24b". As shown in Fig. 5, the "air quantity of the noxious gas concentration" at the time of the " compensation mode 24b " Respectively.

Therefore, the control unit 24 can introduce air of a larger amount of air into the passenger compartment than in the case of the " purge mode 24a "in the" compensated purge mode 24b. &Quot; This makes it possible to sufficiently compensate the forced off state of the air cleaner 10.

Next, an operation example of the present invention having such a configuration will be described with reference to Figs. 4 to 6. Fig.

Referring to FIGS. 6 and 4, the control unit 24 determines whether main power of the air cleaner 10 is applied (S101). The determination at this time is based on the main power switch signal of the air cleaner 10.

As a result of the determination, if the main power source is applied, it is again determined whether the concentration of the noxious gas contained in the air in the car interior is equal to or greater than a preset reference concentration (S103). The determination at this time is based on the data input from the gas sensors 22.

As a result of the determination, if the air-fuel ratio is equal to or greater than the "reference concentration ", the control unit 24 determines that the air in the passenger compartment is contaminated and is switched to the purge mode 24a (S105) The control unit 24 turns on the air purifier 10 and controls the intake door 32 and the blower 34 of the electric air conditioning equipment 30 in step S107.

Accordingly, the air in the passenger compartment is purified, and the outdoor air introduction rate and air volume are increased (S109). As a result, the air condition of the passenger compartment can be improved and a comfortable condition can be maintained.

On the other hand, the control unit 24 again determines whether the air cleaner 10 is forcibly turned off (S111) in the state of being switched to the "purge mode 24a ". The determination at this time is based on the main power switch signal of the air cleaner 10.

If it is determined that the air purifier 10 is forcibly turned off, the control unit 24 determines that the air purifier 10 is forcibly turned off, In accordance with this determination, the mode is switched to the "compensation correction mode 24b" (S113).

The control unit 24 that has been switched to the "compensation correction mode 24b " additionally further controls the intake door 32 and the blower 34 of the electric air-conditioning unit 30 (S115). In particular, the intake door 32 is further moved toward the outside air mode X side, and the rotational speed of the blower 34 is further increased.

Therefore, the outdoor air introduction rate and the air volume introduced into the passenger compartment are further increased (S117) than that in the "purge mode 24a ". As a result, a larger amount of outside air is introduced into the passenger compartment. As a result, the off state of the air cleaner 10 is compensated. Accordingly, even though the air cleaner 10 is forcibly turned off, the air quality in the passenger compartment can be kept clean.

On the other hand, the main power source of the air cleaner 10 is applied by the user (S119) while being controlled to the " compensated purge mode 24b ", and the "forced off signal S" Quot; is cleared, the control unit 24 is returned to the " purge mode 24a "again from the" compensated purge mode 24b "

The control unit 24 returned to the "purge mode 24a" turns on the air purifier 10 and controls the intake door 32 and the blower 34 of the electric vehicle air conditioning apparatus 30 to the original control (S107).

If the main power source of the air cleaner 10 is not applied (S101-1) in the first step (S101), the control unit 24 determines whether or not the concentration of the noxious gas contained in the air in the car interior is & "(S121).

As a result of the determination, if the reference concentration is equal to or greater than the "reference concentration ", the control unit 24 determines that the main air supply source of the air cleaner 10 is blocked, Is directly switched to the "compensated purge mode 24b" (S113).

The control unit 24 which has been switched to the "compensation correction mode 24b" compensates and controls the intake door 32 and the blower 34 of the electric air-conditioning unit 30 (S115). Particularly, the intake door 32 is further moved toward the outside air mode X side than the "purge mode 24a" when the air cleaner 10 is operated, and the rotational speed of the blower 34 is further increased.

Therefore, the outdoor air introduction rate and the air volume introduced into the passenger compartment are increased more than when the air cleaner 10 is operated (S117). This sufficiently compensates for the air quality degradation phenomenon caused by the off state of the air cleaner 10. As a result, even though the air cleaner 10 is off, the air quality in the passenger compartment can be kept clean.

According to the present invention having such a structure, when the air in the passenger compartment is contaminated, the air in the passenger compartment is purified while simultaneously controlling the air purifier 10 and the electric vehicle air conditioner 30 in an interlocked manner. It is possible to more effectively improve the air quality of the air.

Further, when the air purifier 10 is forcibly turned off, the air purifier 10 is forcibly turned off because the air purifier 10 is forcibly turned off to compensate and control the air conditioning apparatus 30 to increase the outdoor air introduction rate and the air volume introduced into the vehicle interior The air cleaning efficiency of the interior of the vehicle is not lowered.

In addition, the air purifying efficiency of the interior of the vehicle is not lowered even though the air purifier 10 is forcibly turned off. Thus, regardless of whether the air purifier 10 is on or off, the air quality in the interior of the vehicle can always be maintained in a comfortable state have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: air cleaner 20: controller
22: gas sensor 24:
24a: purge mode 24b: compensation purge mode
30: air conditioning unit 32: intake door (Intake Door)
32a: Outer air inlet 32b: Outer air inlet
34: Blower 40: Air cleaner forced off detection means

Claims (7)

A controller (24) for controlling the air cleaner (10) in accordance with the concentration of noxious gas contained in the air in the car interior, a controller (24) for controlling the air cleaner (10) The air conditioning apparatus 30 includes an intake door 32 for controlling the amount of opening of the inner and outer air intakes 32a and an intake door 32 for sucking the inside air and the outside air, In a vehicle air conditioner having a blower (34)
The control unit 24 operates the air purifier 10 while entering the purification mode 24a when the concentration of the harmful gas contained in the air inside the vehicle is equal to or higher than a predetermined reference concentration. 30. The air conditioning apparatus for a vehicle, characterized in that to increase the outside air intake rate to the interior of the vehicle by controlling the intake door (32). The method of claim 1,
The control unit (24)
Controls the intake door (32) so that the outdoor air introduction rate with respect to the passenger compartment is proportional to the concentration of the harmful gas in the passenger compartment at the time of the purifying mode (24a). The method of claim 1,
The control unit (24)
And controls the blower (34) of the electric air conditioning apparatus (30) to increase the air flow rate in the vehicle interior during the purge mode (24a). The method of claim 3, wherein
The control unit (24)
And controls the blower (34) so that the air flow rate to the car interior is proportional to the concentration of the noxious gas in the car interior in the purifying mode (24a). The method according to any one of claims 1 to 4,
Further comprising an air cleaner forced off sensing means (40) for sensing the forced OFF of the air cleaner (10);
The control unit (24)
When the forced OFF signal is inputted from the air cleaner forced off sensing means 40, the amount of opening of the intake door 32 to the outside air inlet 32a is corrected while entering the compensated purifying mode 24b, Mode 24a, and further increases the outside air introduction rate for the interior of the vehicle to a value higher than that in the purifying mode 24a. 6. The method of claim 5,
The control unit (24)
The rotational speed of the blower 34 is increased more than the rotational speed of the purge mode 24a at the time of the compensation mode 24b so that the air flow rate to the car interior is increased more than when the purge mode 24a And the air conditioner. The method according to claim 6,
The control unit (24)
When the forced OFF signal is erased from the air cleaner forced off sensing means 40, the air purifier 10 is determined to be turned on and the mode is switched from the compensated purifying mode 24b to the purifying mode 24a, (32) and the blower (34) to their original state.

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