JPH10203131A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an air-conditioning feeling in promoting the air-conditioning compensation conformed to the heat value of outside air penetrating from a car clearance by compensating an air-conditioned state of blowoff air into a car room on the basis of car speed, in time of an inside air circulating mode which makes an inside air inlet into full-open, but an outside inlet into full-close by means of an inside- outside switching means. SOLUTION: In this car air conditioner 1, at the time of the inside air mode, an outside air inlet 4 is closed and an inside air inlet 3 is opened by an inside-outside air swithcing door 5, but at the time of the outside mode, the outside air inlet 4 is opened and the inside air inlet 3 is closed, respectively. In a control unit 20 controlling the air conditioner 1 like this, a fact of whether it is the inside air mode or not on the basis of an operating state of an inside-outside air changeover switch 25b is judged, and when the judged result in NO, the outside air mode, a car speed compensation term is set to zero. When the judged result is YES, the inside air mode, this car speed compensation term is arithmetically processed. Subsequently, a necessary blowoff temperature is calculated on the basis of this car speed compensation term, whereby any effect of the outside air penetrating from a car clearance is favorably negated and comfortable air-conditioning control is promoted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a vehicle, and more particularly to an air conditioner for performing air conditioning correction in accordance with a vehicle speed.

[0002]

2. Description of the Related Art Conventionally, an air conditioner for a vehicle has been disclosed in
There is one described in JP-A-148323. This publication discloses that the air-conditioning air blowing temperature is corrected based on the outside air temperature and the vehicle speed, paying attention to the fact that the heat load of the air conditioner changes according to the vehicle speed together with the outside air temperature. Here, in this publication, the fact that the heat load changes in accordance with the vehicle speed is considered to mean that when the vehicle speed increases, the outside air is blown to the outer surface of the vehicle, which affects the air conditioning state of the vehicle interior.

[0003]

Generally, an air conditioner for a vehicle can be switched between an outside air mode for air conditioning outside air and an inside air mode for air conditioning inside air. As a result of the study by the present inventors, it has been found that in the inside air mode, there is a problem that air that is not air-conditioned by the vehicle speed enters the passenger compartment, adversely affects the air-conditioning state, and has a bad air-conditioning feeling. .

That is, since a vehicle has a structural gap such as a manufacturing limit, and the inside air mode is a mode for sucking inside air, in the inside air mode, the pressure in the vehicle interior becomes lower than the pressure of the outside air, and furthermore, the inside air mode becomes lower. It has been found that when the vehicle travels at a high speed in the mode, the outside air enters the vehicle interior from the gap due to the traveling wind pressure. Therefore, an object of the present invention is to correct the air conditioning in accordance with the amount of heat of the outside air entering from a gap in a vehicle.

[0005]

The present invention employs the following technical means to achieve the above object. According to the first to tenth aspects of the present invention, the air conditioning control means (6, 17, 1)
8, 20), when the inside / outside air switching means (5) is in the inside air circulation mode in which the inside air intake port (3) is fully opened and the outside air intake port (4) is fully closed, the vehicle enters the vehicle interior based on the vehicle speed. It is characterized in that the air-conditioning state of the blown wind is corrected.

Accordingly, the air-conditioning control means corrects the air-conditioning state of the blown air on the basis of the amount of heat of the outside air entering the cabin from the gap of the vehicle which increases according to the vehicle speed.
The effect of the outside air that is not air-conditioned can be canceled to perform comfortable air-conditioning control. In particular, in the third aspect of the present invention, when the temperature outside the vehicle compartment is lower than the temperature inside the vehicle compartment, the temperature control means (17, 18, 20) determines that the higher the vehicle speed is, the more the wind blows into the vehicle compartment. The correction is performed so as to increase the temperature.

Thus, when the temperature outside the vehicle compartment is lower than the temperature inside the vehicle compartment, the outside air entering through the gap in the vehicle gives the occupant a cold discomfort, and this discomfort increases as the vehicle speed increases. The higher the speed, the higher the temperature of the air blown into the vehicle interior, so that it is possible to prevent the occupant from feeling uncomfortable and to give the occupant a good air conditioning feeling.

According to the invention, the temperature control means (17, 18, 20) increases the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment so that the temperature of the air blown into the vehicle compartment increases. It is characterized in that correction is made to increase the temperature. As a result, as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases, the occupant is discomforted to feel cold by the outside air entering the vehicle compartment, but as the difference increases, the temperature of the blowing wind is increased. Therefore, it is possible to prevent the occupant from feeling uncomfortable depending on the air conditioning environment.

Further, in the invention according to claim 5, the temperature control means (17, 18, 20) is arranged such that when the temperature outside the vehicle interior is higher than the temperature inside the vehicle interior, the temperature control means (17, 18, 20) moves into the vehicle interior as the vehicle speed increases. The correction is performed so as to lower the temperature of the blown air. Accordingly, when the temperature outside the vehicle compartment is higher than the temperature inside the vehicle compartment, the outside air entering through the gap in the vehicle gives the occupant a discomfort that it is hot, and this discomfort increases as the vehicle speed increases. Since the temperature of the air blown into the room is reduced, it is possible to prevent the occupant from feeling uncomfortable and to give the occupant a good air conditioning feeling.

[0010] In the invention according to claim 6, the temperature control means (17, 18, 20) is configured to reduce the amount of wind blown into the vehicle compartment as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases. It is characterized in that correction is made to lower the temperature. As a result, as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases, the occupant is discomforted to feel hot by the outside air entering the vehicle compartment, but as the difference increases, the temperature of the blown air is reduced. Therefore, it is possible to prevent the occupant from feeling uncomfortable depending on the air conditioning environment.

[0011] In the invention according to claim 8, the air volume control means corrects the air volume so as to increase as the vehicle speed increases. As a result, the air volume is corrected by the air volume control means so that the air volume increases as the vehicle speed increases, so that the effect of the outside air that is not air-conditioned by the increased air volume can be canceled, and comfortable air conditioning control can be performed.

[0012] In particular, in the ninth aspect of the invention, the air volume control means (6, 20) corrects such that the air volume increases as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases. It is characterized by. As a result, as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases, the occupant is more likely to feel uncomfortable due to the outside air entering through the gap in the vehicle.By increasing the difference, the air volume is increased.
The effect of the outside air that is not air-conditioned by the increased air volume can be canceled to perform comfortable air-conditioning control.

[0013] In the invention according to the tenth aspect, the required outlet temperature calculating means (500) for calculating the required outlet temperature of the outlet air to the passenger compartment based on at least the temperature inside the passenger compartment and the set temperature outside the passenger compartment. ), A target air flow rate determining means (600) for determining a target air flow rate of the air blowing means (6) based on the required air temperature calculated by the required air temperature calculating means (500), and a required air temperature calculating means ( The air outlet mode determining means (700) for determining the outlet mode of the air outlet (9) based on the required outlet temperature calculated by the air flow controller (500). The air volume is corrected by correcting the target air volume determined by the means (600) based on the vehicle speed.

Here, if the required outlet temperature is corrected in accordance with the vehicle speed, the outlet mode is set according to the required outlet temperature, so that there is a problem that the outlet mode causes hunting. However, according to the tenth aspect, since the air volume control means corrects the target air volume, it does not add any correction to the required blowing temperature itself. Therefore, according to claim 10, the above problem can be solved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Next, a first embodiment of the present invention will be described with reference to the drawings. First, the overall configuration of the present embodiment is shown in FIG.
This will be described with reference to FIG. The vehicle air conditioner 1 includes an air conditioning case 2 that forms an air passage that guides air into a vehicle interior. On the upstream side of the air-conditioning case 2, an inside air inlet 3 for sucking air inside the vehicle (hereinafter, inside air) and an outside air inlet 4 for sucking air outside the vehicle (hereinafter, outside air) are provided. Are formed, and the opening ratio of the suction ports 3 and 4 is adjusted by the inside / outside air switching door 5. The inside / outside air switching door 5 is driven by driving means (specifically, a servomotor) 19. Thereby, the vehicle air conditioner 1 can switch between the inside air mode and the outside air mode as the inside air / outside air mode. In the inside air mode, the outside air suction port 4 is closed by the inside / outside air switching door 5, the inside air suction port 3 is opened, and the air conditioning case 2 is opened.
It is a mode to take in all the shyness inside. On the other hand, the outside air mode is a mode in which the outside air suction port 4 is opened by the inside / outside air switching door 5, the inside air suction port 3 is closed, and the outside air is entirely taken into the air conditioning case 2.

In the air conditioning case 2, a blower 6, a cooling means 7, and a heating means 8 are arranged from the air upstream to the downstream, and the air passing through the heating means 8 is supplied to the downstream end of the air conditioning case 2. The air is blown out from each air outlet 9 formed in the vehicle interior to each part in the vehicle interior. The blower 6 generates an airflow in the air-conditioning case 2 and blows out the air taken in from the inside air suction port 3 or the outside air suction port 4 toward the passenger compartment.

The cooling means 7 comprises the refrigerant evaporator 7 of the refrigeration cycle 10. This refrigeration cycle 10
In addition to the refrigerant evaporator 7, the refrigerant compressor 11, the refrigerant condenser 1
2. It is a well-known device that includes a pressure reducing means 13 and is connected by a refrigerant pipe 14. The refrigerant compressor 11 is connected to the engine 15 via an electromagnetic clutch 11a.
Is transmitted to the refrigerant compressor 11.

The heating means 8 is constituted by a heater core 8 using engine cooling water (medium) as a heat source. The engine cooling water heated by the engine 15 flows into the heater core 8. The flow of the heated cooling water is controlled by a water valve 16. In the air conditioning case 2, a bypass passage 36 for allowing the cool air from the refrigerant evaporator 7 to bypass the heater core 8 is formed. In the upstream of the heater core 8, the cooler air from the refrigerant evaporator 7
An air mix door 17 is provided to adjust the ratio between the amount of air flowing through the air passage and the amount of air flowing through the bypass passage 36. In addition,
The air mix door 17 is driven by driving means (specifically, a servomotor) 18.

Each of the air outlets 9 is, specifically, a face air outlet for blowing air-conditioned air toward the upper body of an occupant, a foot air outlet for blowing air-conditioned air toward the feet of the occupant, and an air-conditioned air. From a defroster outlet for blowing air toward the vehicle window glass. These outlets are selectively opened and closed by outlet switching means (not shown).

The control device 20 for controlling the air conditioner includes an inside air sensor 21 for detecting the temperature in the vehicle interior, an outside air sensor 22 for detecting the temperature outside the vehicle interior, and an insolation for detecting the amount of solar radiation applied to the interior of the vehicle. Sensor 23 and post-evaporator sensor 2 for detecting the air temperature immediately after passing through refrigerant evaporator 7
4. A vehicle speed sensor 26 for detecting a vehicle speed and a water temperature sensor 27 for detecting a temperature of hot water circulating in the heater core 7 are connected to be input. The control device 20 includes an air conditioning operation panel 25.
Is connected for input.

The air-conditioning operation panel 25 is provided with a temperature setting device 25a for setting a desired temperature Tset in the vehicle compartment, and an inside / outside air changeover switch 25b for manually switching the inside / outside air mode. The control device 20 is a well-known device including an A / D converter (not shown), a microcomputer, and the like. Signals from the sensors 21 to 24 are A / D converted by the A / D converter. After that, the data is input to the microcomputer. .

The microcomputer is a C (not shown).
Well-known with PU, ROM, RAM, I / O, etc.
Power is supplied from the battery 28 when the ignition switch 27 of the engine is turned on. Next, the operation of the present embodiment will be described based on the flowchart of FIG. First, when the automatic control processing of the air conditioner is started in step 100, first, in step 200, initialization processing of data, flags, and the like used for the subsequent processing is performed.

In step 300, the signals (Tr, Tam, and Tam) obtained by A / D converting the signals from the sensors 21 to 24, 26 and 27 and the signal from the air conditioning operation panel 25 are used.
Ts, Te, Sp, Tw, and Tset) are read. In addition,
Tr is a signal from the inside air sensor 21, Tam is a signal from the outside air sensor 22, Ts is a signal from the solar radiation sensor 23, T
e is a signal from the post-evaporator sensor 24, Vc is a signal from the vehicle speed sensor 26, Tset is a signal from the temperature setter 25a, and Tw is a signal from the water temperature sensor 27.

Next, in step S400, vehicle speed correction in the inside air mode, which is a main part of the present invention, is performed, but a detailed description will be given later. Subsequently, in step 500, the RA
The required blowing temperature (TAO) of the air blown into the vehicle compartment is calculated based on the various data stored in M and the following equation 1 stored in the ROM.

[0025]

## EQU1 ## TAO = Kset × Tset−Kr × Tr−Kam ×
Tam−Ks × Ts + Trv + C where Kset, Kr, Kam, Ks and C are correction constants,
Trv is a vehicle speed correction term set in step S400. Next, in step 600, the blower voltage BLW applied to the blower 6 is determined. And this blower voltage B
The LW is determined from the TAO and the characteristics shown in FIG. 3 stored in the ROM.

Next, at step 700, the above TAO and R
The outlet mode is determined from the characteristics shown in FIG. 4 stored in the OM. Here, the FACE mode is a mode in which cold air is mainly blown out from the face outlet toward the upper body of the occupant, and the foot mode (FOOT) is directed mainly toward the feet of the occupant from the foot outlet. The bi-level (B / L) mode is a mode in which mainly cool air is blown out from the face outlet and the hot air is mainly blown out from the foot outlet.

Next, at step 800, it is determined whether the electromagnetic clutch 11a is to be turned on or off from the detected value Te of the post-evaporator sensor 24 and the characteristics shown in FIG. 5 stored in the ROM. Then, in step 900, the target opening θ0 of the air mix door 17 is calculated based on the various data stored in the RAM and the following equation 2 stored in the ROM.

[0028]

Θ0 = {(TAO−Te) / (Tw−Te)} × 100 (%) Next, at step 1000, the control values determined at steps 700 to 900 are obtained.
A control signal is output to each actuator. Then, in step 1100, it is determined whether or not a predetermined cycle time τ has elapsed since the processing in step 1200 was performed, and the next processing is not performed until the result of this determination is determined to be YES.

Next, step 400 which is a main part of the present invention is described.
Will be described in detail. FIG. 6 is a flowchart showing the control contents of step 400. First, step 40
1, the inside / outside air mode is set to the TAO and R shown in FIG.
Determined by the characteristics stored in the OM. Then step 4
In 02, it is determined whether or not the inside / outside air mode determined in step 401 is the inside air mode. Here, since the inside / outside air mode can be manually set by the inside / outside air changeover switch 25b, it is determined in step S401 whether or not the inside / outside air mode is included, including the operation state of the inside / outside air changeover switch 25b. I have.

If the result of the determination in step S402 is NO and the mode is the outside air mode, the flow proceeds to step 404. In step S403, the vehicle speed correction term Trv is set to 0.
On the other hand, if the result of the determination in step S402 is YES and the mode is the inside air mode, the process proceeds to step 403, and
At 03, the vehicle speed correction term Trv is processed. here,
The vehicle speed correction term Trv is calculated by the following equation (3).

[0031]

## EQU00003 ## Vehicle speed correction term Trv = Kvc.times.Frv Further, Kvc in the equation (3) is determined from the vehicle speed Vc and the characteristic diagram stored in the ROM as shown in FIG. Frv is determined from the characteristic diagram stored in the ROM based on the difference between the inside temperature Tr and the outside temperature Tam as shown in FIG.

More specifically, as shown in FIG.
Is 0 when the vehicle speed Vc is 0, and the vehicle speed Vc is 0 to 1
At 00 km / h, it increases as the vehicle speed Vc increases, and becomes 1 when the vehicle speed Vc is 100 km / h. When the vehicle speed Vc is higher than 100 km / h, Kvc becomes constant. Frv becomes 0 when the difference between the inside temperature Tr and the outside temperature Tam is 0 ° C. as shown in FIG. The difference between the inside temperature Tr and the outside temperature Tam is 0 ° C.
When the temperature is lower, that is, when the temperature of the outside air is higher than that of the inside air, the temperature becomes negative, and the difference is set to be gradually smaller in the range of 0 to −10 ° C.

Further, Frv represents the internal temperature Tr and the external temperature T.
When the difference from am is higher than 0 ° C., that is, when the temperature of the inside air is higher than that of the outside air, the temperature becomes positive. For example, when the vehicle interior is cooled in summer, the outside air temperature Tam is higher than the inside air temperature Tr.
The larger the difference from am, the larger the calculated value. When the vehicle travels in such a state, Kvc also becomes equal to the vehicle speed V.
The higher the value of c, the larger the calculation.

For example, if the difference is −10 ° C., Frv is −5 ° C., and if the vehicle speed Vc is 100 km / h, Krv is K.
vc becomes 1. Therefore, in this case, the vehicle speed correction term Trv
Is calculated as 5 × 1 and −5. Then, the vehicle speed correction term Trv is calculated by the above equation (1) in step 500. Therefore, the required blowing temperature TAO is calculated so as to be 5 ° C. lower than when the vehicle speed Vc is 0 and the difference is 0. Is done. As a result, the air mix door 17 is controlled so that the temperature of the conditioned air is lowered.

In other words, in the inside air mode, as the vehicle speed Vc increases, the amount of outside air that is not air-conditioned enters the vehicle interior from the manufacturing gap of the vehicle. In some cases, the outside air entering the vehicle interior may give a passenger an unpleasant sensation. The discomfort varies depending on the internal temperature Tr at that time, and increases as the difference between the internal temperature Tr and the external temperature Tam increases.

Therefore, in the present embodiment, the required blowing temperature TAO is set such that the higher the vehicle speed Vc and the higher the internal temperature Tr,
Is calculated so as to decrease as the difference between the vehicle temperature and the outside temperature Tam increases, so that the influence of the outside air entering from the gap between the vehicles can be effectively canceled, comfortable air-conditioning control can be performed, and air conditioning of the occupant can be performed. Feeling can be improved.

On the other hand, for example, in winter, when the vehicle interior is heated, the internal temperature Tr is higher than the external temperature Tam, so that Frv is calculated to be larger as the difference between the internal temperature Tr and the external temperature Tam increases. When the vehicle travels in such a state, Kvc is also calculated to increase as the vehicle speed Vc increases. For example, if the difference is 10 ° C., Frv becomes 5
When the vehicle temperature and the vehicle speed Vc are 100 km / h, Kvc becomes 1. Therefore, in this case, the vehicle speed correction term Trv is 5 × 1
Is calculated as 5.

The vehicle speed correction term Trv is calculated by the above equation (1) in step 500. Therefore, the required blowing temperature TAO is 5 ° C. compared to the case where the vehicle speed Vc is 0 and the difference is 0. It is calculated to be higher. As a result, the temperature of the conditioned air is controlled by the air mix door 17 to increase. In other words, of course, even in winter,
As the vehicle speed Vc increases, the amount of outside air that is not air-conditioned enters the vehicle interior through a gap in the manufacture of the vehicle. As a result, the occupant is discomforted by the outside air entering the passenger compartment, and the discomfort is increased as the difference between the inside temperature Tr and the outside temperature Tam increases.

Therefore, in the present embodiment, the required blow-out temperature TAO increases as the vehicle speed Vc increases and the internal air temperature Tr increases.
Is calculated so as to increase as the difference between the vehicle temperature and the outside air temperature Tam increases, so that the influence of the outside air entering through the gap in the vehicle can be canceled well, and the comfortable air conditioning control can be performed. The air conditioning feeling can be improved.

In this embodiment, Equation 3 and FIG.
As is clear from the above, regardless of the season, it is possible to satisfactorily cancel the outside air in accordance with the difference between the inside air temperature Tr and the outside air temperature Tam and perform good air conditioning control, thereby improving the air conditioning feeling of the occupants. Can be. If it is determined in step 402 that the vehicle is in the outside air mode and the process proceeds to step S404, the vehicle speed correction term Trv is set to 0 because there is no problem in the outside air mode that outside air that is not air-conditioned enters the vehicle interior from a gap in the vehicle. There is.

(Second Embodiment) In this embodiment, the first
The contents of steps 400 to 600 are different from those of the embodiment. In the first embodiment, the required blowing temperature TA is determined by the vehicle speed Vc, the internal temperature Tr, and the external temperature Tam.
Although O is corrected, the present embodiment is different from this, and the blower voltage is corrected in the present embodiment.

First, FIG. 10 is a flowchart showing the control contents in step 400. Step 401
And step 402 are the same as those in the first embodiment, and a description thereof will be omitted. If it is determined in step 402 that the mode is the outside air mode, a blower correction term FrvL = 0 described later is set in step S406. Step 402
If it is determined in step S405 that the mode is the inside air mode, the process proceeds to step S405.
Performs the processing of the blower correction term FrvL. The calculation processing in step 405 will be described later.

Next, in step S500, the required blowing temperature T
AO is calculated by the following equation (4).

[0044]

## EQU4 ## TAO = Kset × Tset−Kr × Tr−Kam
× Tam−Ks × Ts + C where Kset, Kr, Kam, Ks, and C are correction constants,
Then, in step 600, the blower voltage BLW ', which is the final target air flow rate in the arithmetic processing, is calculated by the following equation (5).

[0045]

## EQU00005 ## Blower voltage BLW '= BLW + Kvc.times.
FrvL Here, BLW is the blower voltage determined from the characteristics of FIG. 3, and Kvc is the correction coefficient determined from the characteristics diagram of FIG. The blower correction FrvL is determined from the characteristic diagram stored in the ROM shown in FIG. That is,
When the outside air mode is determined in step 402 as described above, FrvL is set to 0 in step 406, and the blower voltage BLW 'is directly determined from FIG.

On the other hand, if it is determined in step 402 that the air mode is the inside air mode as described above, then in step 405, the characteristic is determined from the characteristics shown in FIG. Specifically, the larger the absolute value of the difference between the inside temperature Tr and the outside temperature Tam, the larger the value. Therefore, the above Kvc × FrvL
Is set to increase as the absolute value increases and the vehicle speed Vc increases. As a result, as the absolute value increases and the vehicle speed Vc increases, the final blower voltage BLW 'is set higher.

As described above, in the present embodiment, the vehicle speed Vc
And the absolute value of the difference between the inside air temperature Tr and the outside air temperature Tam, so that only the blower voltage is corrected. As the vehicle speed Vc increases and the absolute value increases, the blower voltage increases. In this way, it is possible to favorably cancel out the influence of the outside air entering from a gap in the vehicle, and it is possible to perform comfortable air conditioning control. As a result, the occupant's feeling of air conditioning can be improved.

The present embodiment has the following operation and effects. In the first embodiment, when the required outlet temperature TAO fluctuates due to the fluctuation of the vehicle speed Vc, the air outlet mode is frequently switched, for example, as shown in FIG. As a result, hunting occurs in the air mix door 17, the outlet mode, and the like. However, in this embodiment, since the blower voltage is corrected, such hunting in the outlet mode can be prevented beforehand.

(Other Embodiments) In the first embodiment,
Although Frv is determined by the difference between the inside temperature Tr and the outside temperature Tam as shown in FIG. 9, Frv may be set higher as the outside temperature becomes higher as shown in FIG.
In the second embodiment, as shown in FIG.
L is determined by the absolute value of the difference between the inside temperature Tr and the outside temperature Tam, but FrvL may be determined according to the outside temperature Tam as shown in FIG.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a vehicle air conditioner according to first and second embodiments of the present invention.

FIG. 2 is a flowchart showing control contents of the vehicle air conditioner in the embodiment.

FIG. 3 is a diagram illustrating a relationship between a required blowing temperature TAO and a blower voltage BLW in the embodiment.

FIG. 4 is a diagram illustrating a relationship between a required outlet temperature TAO and an outlet mode in the embodiment.

FIG. 5 is an operation characteristic diagram of the compressor in the embodiment.

FIG. 6 is a flowchart showing control contents of the vehicle air conditioner in the embodiment.

FIG. 7 is a diagram illustrating a relationship between a required blowing temperature TAO and an inside / outside air mode in the embodiment.

FIG. 8 shows the vehicle speed Vc and the correction coefficient Kvc in the embodiment.
FIG.

FIG. 9 shows an inside temperature Tr and an outside temperature Tam in the embodiment.
FIG. 7 is a diagram showing a relationship between the difference between the Fvc and Fvc.

FIG. 10 is a flowchart showing control contents of the vehicle air conditioner according to the second embodiment.

FIG. 11 is a diagram illustrating a relationship between an absolute value of a difference between an inside temperature Tr and an outside temperature Tam and Frvl in the second embodiment.

FIG. 12 is a diagram illustrating a relationship between an outside air temperature Tam and Frv in another embodiment of the present invention.

FIG. 13 is a diagram illustrating a relationship between an outside air temperature Tam and Frvl in another embodiment of the present invention.

[Explanation of symbols]

2 ... air conditioning case, 6 ... blower, 17 ... air mix door, 20 ... control device 26 ... vehicle speed sensor.

Claims (10)

[Claims] An air passage (2) having an inside air inlet (3) and an outside air inlet (4) formed at one end and an air outlet (9) formed at the other end to blow air into a vehicle cabin. A blowing means (6) for sucking air from the inside air suction port (3) or the outside air suction port (4) and blowing it out from the air outlet (9) toward the vehicle compartment; 3) and inside / outside air switching means (5) for opening and closing the outside air intake port (4); and air conditioning control means for air-conditioning the air blown into the vehicle compartment based on at least the temperature in the vehicle compartment and the set temperature in the vehicle compartment. (6, 1
7, 18, 20), wherein the air conditioning control means (6, 17, 18, 20) fully opens the inside air suction port (3) with the inside / outside air switching means (5). An air conditioner for a vehicle, wherein an air conditioning state of air blown into the vehicle compartment is corrected based on a vehicle speed in an inside air circulation mode in which the outside air intake port (4) is fully closed. 2. The air conditioning control means (6, 17, 18, 2)
The temperature control means (17, 18, 20) for correcting the temperature of the air blown into the vehicle interior based on the vehicle speed in the inside air circulation mode. An air conditioner for a vehicle as described in the above. 3. The temperature control means (17, 18, 20).
3. The method according to claim 2, wherein when the temperature outside the vehicle compartment is lower than the temperature inside the vehicle compartment, the correction is made such that the higher the vehicle speed, the higher the temperature of the air blown into the vehicle compartment. Vehicle air conditioners. 4. The temperature control means (17, 18, 20)
4. The air conditioning system for a vehicle according to claim 3, wherein the temperature of the air blown into the vehicle interior is corrected to increase as the difference between the temperature outside the vehicle interior and the temperature inside the vehicle interior increases. apparatus. 5. The temperature control means (17, 18, 20)
The correction according to claim 2, wherein when the temperature outside the vehicle compartment is higher than the temperature inside the vehicle compartment, as the vehicle speed increases, the temperature of the air blown into the vehicle compartment decreases. Vehicle air conditioners. 6. The temperature control means (17, 18, 20)
6. The vehicle air conditioner according to claim 5, wherein the correction is performed such that as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases, the temperature of the air blown into the vehicle compartment decreases. apparatus. 7. The air conditioning control means (6, 17, 18, 2)
The air flow control means (6, 20) according to claim 1, wherein 0) is an air flow control means (6, 20) for correcting a flow rate of air blown into the vehicle interior based on the vehicle speed in the inside air circulation mode. Vehicle air conditioners. 8. The air conditioner for a vehicle according to claim 7, wherein the air volume control unit corrects the air volume so as to increase as the vehicle speed increases. 9. The air volume control means (6, 20) performs correction so that the air volume increases as the difference between the temperature outside the vehicle compartment and the temperature inside the vehicle compartment increases. An air conditioner for a vehicle as described in the above. 10. A required outlet temperature calculating means (500) for calculating a required outlet temperature of air blown into the vehicle interior based on at least a temperature inside the vehicle interior and a set temperature outside the vehicle interior.
A target air volume determining means (600) for determining a target air volume of the air blowing means (6) based on the required air temperature calculated by the required air temperature calculating means (500); and a required air temperature calculating means. An air outlet mode determining means for determining an air outlet mode of the air outlet based on the required air outlet temperature calculated by the air flow amount controlling means; 8. The air conditioner for a vehicle according to claim 7, wherein the air volume is corrected by correcting a target air volume determined by a target air volume determining means based on the vehicle speed.