JP3094541B2 - Vehicle air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner and, more particularly, to a vehicle air conditioner for controlling the temperature of air blown into a vehicle cabin so as to set the temperature in the vehicle cabin to a predetermined temperature.

[0002]

2. Description of the Related Art Conventionally, in this type of apparatus, for example, the following equation (1)
Is used to calculate the target outlet temperature TAO, TAO = Kset / Tset-Kr / Tr-Kam / Tam-Ks / Ts + C (1) where Tr: temperature in the passenger compartment (inside air temperature), Tset: set temperature , Tam: temperature outside the vehicle compartment (outside air temperature), Ts: solar radiation amount, Kset, Kr, Kam, Ks: coefficient, C: correction constant 駆 動 Based on the calculation result, drive control of blow-out temperature adjusting means such as an air mix damper. Thus, the temperature in the vehicle compartment is controlled to the set temperature.

[0003]

However, in the conventional vehicle air conditioner that determines the target outlet temperature TAO as described above,
The target outlet temperature TAO is equal to the inside air temperature Tr and the set temperature Tset.
It is determined by the quantitative values of the input variables such as, etc., and the target outlet temperature TAO reflects the interrelationship of each environmental factor, particularly the change in the comfort experienced by the vehicle occupant due to the outside air temperature Tam and the amount of solar radiation Ts. could not.

[0004] Therefore, for example, when solar radiation invades in the middle of winter, the vehicle occupant receives hot sunlight and blows out high-temperature air due to low outside air temperature, or conversely, in the midwinter, despite being hot due to the solar radiation. If the effect of the outside air temperature on the target air outlet temperature TAO is suppressed (that is, if the value of the coefficient Kam in the equation (1) is reduced) in order to ensure the performance, when the amount of solar radiation is small in the middle of summer, the outside air temperature becomes high and the vehicle occupant increases. Even though it is hot, the phenomenon that the blowing temperature does not drop occurs,
In some cases, the occupants would feel uncomfortable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an air conditioner for a vehicle that can constantly control the blowout temperature optimally in accordance with the comfort of the vehicle occupant.

[0006]

That is, the present invention, which has been made to achieve the above object, has a blowout temperature adjusting means for adjusting the blowout temperature of air into a vehicle cabin, as shown in FIG.
Using an arithmetic expression having at least the inside air temperature inside the vehicle compartment, a preset set temperature, and a correction constant as parameters,
A vehicle comprising: a calculating means for calculating a target blowing temperature for controlling the inside air temperature to a set temperature; and a driving means for driving the blowing temperature adjusting means in accordance with the target blowing temperature calculated by the calculating means. In the air conditioner for use, an outside air temperature detecting means for detecting an outside air temperature outside the vehicle compartment, an insolation amount detecting means for detecting an insolation amount entering the cabin, a correction constant for the insolation amount, the outside air temperature, and the arithmetic expression Storage means for storing in advance a fuzzy rule representing the relationship between the outside air temperature and the amount of solar radiation detected by the outside air temperature detecting means and the amount of solar radiation, respectively, as input information. The gist of the present invention is an air conditioner for a vehicle, comprising: a fuzzy inference for the correction constant using rules, and a correction constant setting means for setting a correction constant of the arithmetic expression. .

[0007]

In the vehicle air conditioner of the present invention constructed as described above, the calculating means uses at least the inside air temperature inside the vehicle compartment, a preset set temperature, and a correction constant as parameters. Arithmetic expression ｛For example, (1)
The target blowing temperature for controlling the inside air temperature to the set temperature is calculated by using the formula｝, and the driving means drives the blowing temperature adjusting means according to the calculation result, thereby blowing air into the vehicle interior. The temperature is controlled to the target outlet temperature. Further, in the vehicle air conditioner of the present invention, the relationship between the amount of insolation detected by the amount of insolation detecting means, the outside air temperature detected by the outside air temperature detecting means, and the correction constant of the arithmetic expression for calculating the target outlet temperature is calculated. Storage means for storing in advance the fuzzy rules to be represented,
The correction constant setting means sets the correction constant based on the detection result of the outside air temperature and the amount of solar radiation using the fuzzy rules stored in the storage means.

Therefore, according to the vehicle air conditioner of the present invention, the fuzzy rules stored in the storage means are set in advance in accordance with the comfort level received by the vehicle occupant based on the outdoor temperature and the amount of solar radiation. It is possible to always control the blowing temperature to an optimum value for the vehicle occupant. That is,
As in the conventional device that determines the target outlet temperature with the correction constant C in the equation (1) being a constant value, the target outlet temperature can be reduced only by individual factors such as an increase in the amount of solar radiation or an increase in the outside air temperature. Instead, it is possible to optimally correct the target outlet temperature in accordance with the correlation between the amount of solar radiation and the outdoor temperature.

According to a second aspect of the present invention, in the storage means, under a condition of a high solar radiation amount, in which the target blowing temperature is reduced as the solar radiation amount increases and the solar radiation amount becomes equal to or more than a predetermined value, the outside air temperature is reduced. If the fuzzy rule for setting the correction constant is set so that the reduction amount of the target blowing temperature is larger in winter when the outside air temperature is lower than in summer when the temperature is high, even in winter, When the vehicle occupant becomes hot due to an increase in the amount of solar radiation, it is possible to reduce the blowing temperature.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 2 is a schematic configuration diagram illustrating a configuration of an entire vehicle air conditioner according to an embodiment to which the present invention is applied.

As shown in the figure, the air conditioner for a vehicle according to the present embodiment includes an inside / outside air switching damper 7, a blower 9, an evaporator 11, an air duct 5 in an air duct 5 arranged in front of a passenger compartment in order from the upstream side. Mix damper 13, heater core 1
5 and an air conditioning unit provided with an outlet switching damper 17.

Here, the inside / outside air switching damper 7 is switched to a first switching position (the position shown by a solid line in the figure) under the drive of the servomotor 19, and the outside air is introduced into the air duct 5 from the outside air inlet 5a. On the other hand, it is switched to the second switching position (the position shown by the broken line in the figure), and the air (inside air) in the vehicle compartment flows into the air duct 5 from the inside air inlet 5b.

The blower 9 has a blower controller 23.
The air is blown to the evaporator 11 as an airflow by the outside air from the outside air inlet 5a or the inside air from the inside air inlet 5b according to the rotation speed.
The airflow from the blower 9 is cooled by a refrigerant circulating by the operation of a refrigeration cycle (not shown) of the air conditioner.

Next, the air mix damper 13 corresponds to the above-mentioned blowing temperature adjusting means, is driven by a servomotor 25 as a driving means, and sends a cooling air flow from the evaporator 11 to the heater core 15 in accordance with the opening degree. At the same time, the remaining cooling air flow is caused to flow toward the outlet switching damper 17.

An outlet switching damper 17 is a FOOT outlet that blows out the conditioned air that has passed through the air mix damper 13 under the drive of the servo motor 27.
Switch to one or both of the (foot) outlet 5c and the FACE (face) outlet 5d.

Next, a servo motor 19 for driving the inside / outside air switching damper 7, the blower 9, the air mix damper 13, and the outlet switching damper 17, a blower controller 23,
Servo motors 25 and 27 are electronic control units (ECUs)
The above components are driven in response to a control signal from 30.

The ECU 30 determines the temperature in the passenger compartment (inside air temperature).
An inside air temperature sensor 34 for detecting Tr, an outside air temperature sensor 36 for detecting an outside air temperature (outside air temperature) Tam, a water temperature sensor 38 for detecting an engine cooling water temperature Tw, and a solar radiation entering the vehicle interior. Solar radiation sensor 40 as a solar radiation amount detecting means for detecting the amount Ts, and the evaporator 1
A detection signal from the outlet temperature sensor 42 or the like for detecting the temperature Te of the cool air from the unit 1 is read via an A / D converter or the like (not shown), and the user's The CPU 30a, the ROM 30b, and the RAM 30c execute the air conditioning control according to the request.
And the like.

The operation panel 50 is provided on an inner panel in front of the driver's seat in the vehicle interior, and together with a well-known air conditioner switch, inside / outside air changeover switch, etc., a temperature for setting a target temperature in the vehicle interior by external operation. Setting switch 5
2. A display 54 for displaying the set temperature Tset by the temperature setting switch 52 is provided.

Next, an air-conditioning control process which is repeatedly executed by the ECU 30 to drive and control the above components will be described with reference to a flowchart shown in FIG. As shown in the figure, when this processing is started, first, in step 110,
The detection signals from the above sensors are read. In the following step 120, the outside air temperature T read in step 110
In accordance with the membership function and the fuzzy rule stored in the ROM 30b as the storage means, using the detection signals representing the am and the solar radiation Ts, the arithmetic expression for calculating the target blowout temperature TAO {in this embodiment, the above-mentioned (1) ) A fuzzy inference is made for the correction constant C included in the equation｝, and the correction constant C
Is performed as a correction constant setting means for determining the value.
The membership functions, fuzzy rules and fuzzy inference procedures stored in the ROM 30b will be described later in detail.

In the following step 130, step 1
Based on the correction constant C set at 20, the detection signals representing the inside air temperature Tr, the outside air temperature Tam and the amount of solar radiation Ts read at step 110, and the set temperature Tset set via the temperature setting switch 52. Then, the target outlet temperature TAO is calculated by using the above-mentioned equation (1).

After the target outlet temperature TAO has been calculated in this manner, the process proceeds to step 140, and based on the calculated target outlet temperature TAO, the airflow amount is stored in advance in the ROM 30b as shown in FIG. The air volume generated by the blower 9 is calculated using the map.

In the following step 150, based on the target blow-off temperature TAO, a blow-out representing a blow-out opening for blowing out conditioned air into the vehicle compartment using a blow-off mode setting map as shown in FIG. 5 previously stored in the ROM 30b. Mode
Set to one of the FOOT mode, FACE mode, and B / L mode. Of these three blowing modes, FO
The OT mode is a mode in which conditioned air is blown out only from the FOOT outlet 5c.
The mode in which only the CE outlet 5d is blown out, and the B / L mode indicates the mode in which conditioned air is blown out from both the outlets 5c and 5d.

In the following step 160, the following equation (2) stored in the ROM 30b in advance based on the target outlet temperature TAO and the temperature Te of the cool air from the evaporator 11 and the cooling water temperature Tw read in step 110. Is used to calculate the opening degree [%] of the air mix damper 13 for controlling the temperature of the conditioned air blown out from the blowout ports 5c and 5d to the target blowout temperature TAO.

Θ = {(TAO−Te) / (Tw−Te)} · 100 (2) As described above, in steps 140 to 160, the air volume, the blowing mode, and the air mix damper opening θ are calculated. Then, in step 170, a control signal for generating an airflow having the calculated air volume from the blower 9 is output to the blower controller 23. In step 180, the blowout mode is controlled to the calculated blowout mode. Is output to the servomotor 27, and at step 190, a control signal for controlling the air mix damper 13 to the calculated opening degree θ is output to the servomotor 25, and the process returns to step 110.

By the processing of steps 170 to 190, the air volume, the blowing mode, and the opening degree of the air mix damper are controlled to the calculation results of steps 140 to 160, and are blown into the vehicle compartment from the outlets 5c and 5d. The conditioned air is controlled to the target outlet temperature TAO calculated in step 130.

As described above, in the vehicle air conditioner of this embodiment, the temperature of the conditioned air blown into the passenger compartment (blowout temperature) is controlled to the target blowout temperature TAO obtained by using the above equation (1), and the air flow rate is controlled. And the blow mode is set to the target blow temperature TA
The control is performed according to O. For this reason, the target outlet temperature TAO is the most important parameter in executing the air-conditioning control. In order to always keep the comfort of the vehicle occupants good, it is necessary to make this value correspond to the surrounding environment that changes variously.

Therefore, in the present embodiment, in the processing of step 120, the correction constant C of the above-mentioned equation (1) used for calculating the target blow-off temperature TAO is changed to the outside air temperature T.
The target outlet temperature TAO is made to correspond to various environmental conditions by determining the am and the solar radiation amount Ts by fuzzy inference using the input information.

Hereinafter, a procedure of fuzzy inference executed in determining the correction constant C, and a membership function and a fuzzy rule used in executing the fuzzy inference will be described in detail. First, FIG.
(A) to (c) represent membership functions used in fuzzy inference of the present embodiment. Note that the horizontal axis of each membership function corresponds to each input / output value, and the vertical axis represents the degree of certainty (CF
Value).

FIG. 6A is a characteristic diagram showing a membership function relating to the outside air temperature Tam. The fuzzy set of the outside air temperature Tam is a set temperature Tam1 (for example, -2
0 ° C), Tam2 (for example, -5 ° C), Tam3 (for example, 10
° C), Tam4 (eg, 25 ° C), Tam5 (eg, 40 ° C)
° C), corresponding to midwinter (SW: Super winter) and winter (W
I: Winter), Spring Autumn (AU: AUTUMN), Summer (SM: SUMM)
ER) and midsummer (SS: Super Summer) are divided into five stages of fuzzy sets, and each membership function forms a membership function related to the outside air temperature Tam. The fuzzy variables belonging to each fuzzy set are set by the fuzzy set range and the CF value in the range as shown in FIG. 6A by the membership function of each fuzzy set.

FIG. 6B is a characteristic diagram showing a membership function relating to the amount of solar radiation Ts. This solar radiation Ts
The fuzzy set related to the set insolation Ts1, Ts2,
Ts3 (Ts1 <Ts2 <Ts3), corresponding to weak (WK: Weak), medium (MD: Medium) and strong (S
G: Strong) and is divided by a three-stage fuzzy set, and each membership function forms a membership function related to the amount of solar radiation Ts. The fuzzy variables belonging to each fuzzy set are set by the membership function of each fuzzy set by the range of the fuzzy set as shown in FIG. 6B and the CF value in the range.

FIG. 6C is a characteristic diagram showing a membership function relating to the correction constant C. In the present embodiment, the above equation (1) is designed in advance to use a negative value for the correction constant C, and the fuzzy set relating to the correction constant C is set values C1, C2, C3 (C1 <C2
<C3), a three-stage fuzzy set of negative low (LO), negative medium (ME), negative high (HI), and a correction constant C Form a membership function. The fuzzy variables belonging to each fuzzy set are set by the membership function of each fuzzy set by the range of the fuzzy set as shown in FIG. 6C and the CF value in the range.

Next, the fuzzy rule is based on the outside air temperature Tam and the insolation Ts set as described above.

Based on the membership function relating to the correction constant C, the values are set as shown in Table 1.

[0034]

[Table 1]

Here, (a1) to (a15) in Table 1 represent the numbers of the fuzzy rules. The general description of each of these fuzzy rules is as follows. (a1) IF (Tam = SW & Ts = WK) THEN (C = HI) (a2) IF (Tam = SW & Ts = MD) THEN (C = HI) (a3) IF (Tam = SW & Ts = SG) ) THEN (C = ME) (a4) IF (Tam = WI & Ts = WK) THEN (C = HI) (a5) IF (Tam = WI & Ts = MD) THEN (C = ME) (a6) IF ( Tam = WI & Ts = SG) THEN (C = LO) (a7) IF (Tam = AU & Ts = WK) THEN (C = ME) (a8) IF (Tam = AU & Ts = MD) THEN (C = ME) (a9) IF (Tam = AU & Ts = SG) THEN (C = LO) (a10) IF (Tam = SU & Ts = WK) THEN (C = HI) (a11) IF (Tam = SU & Ts) = MD) THEN (C = ME) (a12) IF (Tam = SU & Ts = SG) THEN (C = ME) ( a13) IF (Tam = SS & Ts = WK) THEN (C = ME) (a14) IF (Tam = SS & Ts = MD) THEN (C = ME) (a15) IF (Tam = SS & Ts = SG) THEN (C = ME) The fuzzy rule reflects the following technical idea.

That is, first, the outside air temperature Tam is set to the set temperature Tam5.
In the case of midsummer (SS), the vehicle occupant receives the solar radiation Ts
Irrespective of the temperature, even if the correction constant C is fixed and the target outlet temperature TAO is set in the same manner as before, the target outlet temperature T
Since AO can be set sufficiently low to give a comfortable feeling to the vehicle occupant, the correction constant C is (M
Set E).

On the other hand, the outside air temperature Tam becomes lower than midsummer.
Summer (SU), Spring Autumn (AU), Winter (WI), Midwinter (SW)
In the case of, the vehicle occupant feels hot as the amount of solar radiation Ts increases, so the correction constant C may be reduced as the amount of solar irradiance increases. In this case, the vehicle occupant feels hot as the amount of solar radiation Ts increases. Discomfort varies from season to season. Therefore, in the present embodiment, a comfortable pattern for the vehicle occupant is ensured by setting a change pattern of the correction constant C with respect to the change in the amount of solar radiation Ts for each of these seasons.

That is, in the summer (SU) when the outside air temperature Tam becomes the set temperature Tam4, the vehicle occupant feels hot only by the infiltration of solar radiation, so that the correction constant C is set to (HI) only when the solar radiation amount Ts is (WK). ) And the solar radiation Ts is (MD), (S
In the case of G), the correction constant C is set to (ME) as in the case of midsummer.
And Also, in the case of midwinter (SW) where the outside air temperature Tam becomes the set temperature Tam1, the vehicle occupant does not feel hot just by a little insolation, so the correction constant C is set only when the solar radiation amount Ts is (SG). Is (ME), and when the solar radiation amount Ts is (WK), (MD), the correction constant C is set to (HI).
And

On the other hand, in winter (WI) when the outside air temperature Tam becomes the set temperature Tam2, the target blowing temperature TAO needs to be raised if the solar radiation amount Ts is small, but it becomes hotter as the solar radiation enters. Therefore, the amount of solar radiation Ts is (W
K), the correction constant C is (HI), and when the solar radiation Ts is (MD), the correction constant C is (ME), the solar radiation Ts
Is (SG), the correction constant C is set to (LO). Spring and Autumn (AU) when the outside air temperature Tam reaches the set temperature Tam3)
In the case of, the target outlet temperature TAO becomes an appropriate temperature that hardly requires heating and cooling. If the amount of solar radiation Ts is large, it feels hot, but if the amount of solar radiation Ts is not so large, there is no discomfort. SG), the correction constant C is set to (LO), and the insolation Ts is set to (WK), (M
In the case of D), the correction constant C is (ME).

Next, the fuzzy inference of the correction constant C using such membership functions and fuzzy rules is executed according to the following procedures 1 to 5. Step 1: Each input variable (ie, outside temperature Tam, solar radiation Ts)
Is obtained from the membership functions shown in FIGS. 6A and 6B.

Step 2: Based on the result of step 1, which rule in the rule table in Table 1 is selected, the CF value of the outside air temperature Tam and the amount of solar radiation Ts are selected for each matched fuzzy rule.
And the smaller CF value is set as the minimum value CFMIN. Step 3: A weighting process with the minimum value CFMIN is performed on the membership function relating to the correction constant C shown in FIG.

Step 4: A membership function for a new correction constant C based on the union is created by superimposing all the membership functions for the weighted correction constant C. Step 5: The center of gravity G of the new membership function created in step 4 is calculated, and the center of gravity G is used as a correction constant C.

Hereinafter, a specific example of the fuzzy inference executed according to the above procedures 1 to 5 will be described with reference to FIG. FIG. 7
Means that the outside air temperature Tam is Tamx (however, Tam3 <Tamx <Tam
4), the solar radiation Ts is Tsx (where Ts2 <Tsx <Ts
An example of inference of the correction constant C when 3) is shown.

When the outside air temperature Tam is Tamx, the fuzzy sets of the outside air temperature correspond to two sets (AU) and (SU). On the other hand, when the solar radiation amount Ts is Tsx, the fuzzy set of Ts applies to two sets of (MD) and (SG). Therefore, in procedure 1, as is clear from FIG. 7, 0.7 and 0.2 are obtained as the CF values for the outside air temperature Tam for each fuzzy set AU and SU, and the CF values for the solar radiation amount Ts are obtained as follows. 0.8 and 0.2 are obtained for each fuzzy set MD and SG.

Next, in procedure 2, each fuzzy set A
U, SU, MD, SG

As fuzzy rules, fuzzy rules (a8), (a9), (a11), and (a12) are selected from Table 1, and each of the selected fuzzy rules (a8), (a9), (a11), (a11) a12) For each
The smaller CF value of the CF value of the outside air temperature Tam and the CF value of the solar radiation amount Ts is selected as the minimum value CFMIN.

That is, for example, in the fuzzy rule (a8), the CF value of the fuzzy set AU for the outside air temperature Tam is 0.7, and the CF value of the fuzzy set MD for the solar radiation amount Ts is 0.8. Smaller CF
The value, 0.7, is set as the minimum value CFMIN.
Similarly, in the fuzzy rules (a9), (a11), and (a12), 0.2 is set as the minimum value CFMIN.

Next, in step 3, for each of the fuzzy rules (a8), (a9), (a11), and (a12), a membership function (ie, ME, HI, ME, M
E) has the minimum value CFMIN (that is, 0.7,
0.2, 0.2, 0.2)
Weighting is performed (shown in bold lines in FIG. 7).

Then, in step 4, for each of the fuzzy rules (a8), (a9), (a11), and (a12), a membership function for the weighted correction constant C (ie,
ME, HI, ME, ME)
A membership function based on the union is created. Thereafter, in step 5, the center of gravity value is calculated from the membership function of the newly created correction constant C, and an inference result of the correction constant C is obtained.

As described above, in the vehicle air conditioner of this embodiment, the correction constant C of the above-mentioned equation (1) used for calculating the target air outlet temperature TAO, which is the basis of the air conditioning control, is determined by the outside air temperature. Since the determination is made by fuzzy inference using Tam and solar radiation Ts as input information, the target outlet temperature TAO can be made to correspond to various environmental conditions. That is, in the present embodiment, the fuzzy rules used in fuzzy inference of the correction constant C are determined by the summer, spring and autumn, when the vehicle occupant feels hot as the solar radiation Ts increases.
In winter and mid-winter, the target outlet temperature T
The correction constant C is set so that AO is reduced, and the amount of the reduction is increased in winter (WI) (to reduce C) in response to the discomfort felt by the vehicle occupant as the amount of solar radiation increases.
Is set so that the comfort of the vehicle occupant can always be ensured.

In this embodiment, since the correction constant C in the equation (1) for calculating the target outlet temperature TAO is determined by fuzzy inference, the fuzzy inference is performed in comparison with the case where the target outlet temperature TAO itself is determined by fuzzy inference. Membership functions and fuzzy rules required to perform the operations can be reduced, and the capacity of the ROM 30b for storing the functions can be reduced.

In the above embodiment, the target blowing temperature TAO is
Although the calculation using equation (1) has been described, for example, in order to adapt the air conditioner to various vehicles, the following equation (3) is used, in which an overcorrection constant ΔT that can be changed later is added. The present invention can be applied to a device that calculates the target outlet temperature TAO. In this case, even if the overcorrection constant ΔT is determined by fuzzy inference instead of the correction constant C, the same effect as in the above embodiment can be obtained.

TAO = Kset · (Tset + ΔT) −Kr · Tr−Kam · Tam−Ks · Ts + C (3)

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating the configuration of the present invention.

FIG. 2 is a schematic configuration diagram illustrating a configuration of the entire vehicle air conditioner of the embodiment.

FIG. 3 is a flowchart illustrating an air conditioning control process executed by an ECU 30.

FIG. 4 is a graph showing an air volume calculation map used at the time of executing the air conditioning control process.

FIG. 5 is a graph showing a blowing mode setting map used when executing the air conditioning control process.

FIG. 6 is a graph showing various membership functions used for performing fuzzy inference of the correction constant C;

FIG. 7 is an explanatory diagram illustrating a specific example of a fuzzy inference procedure of a correction constant C.

[Explanation of symbols]

5 air duct 7 inside / outside air switching damper 9 blower 11 evaporator 13 air mix damper
15: Heater core 17: Air outlet switching damper 19, 25, 27: Servo motor 23: Blower controller 30: ECU 30b
… ROM 34… Inner temperature sensor 36… Outer air temperature sensor 38…
Water temperature sensor 40: Solar radiation sensor 52: Temperature setting switch

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuji Honda 1-1-1, Showa-cho, Kariya-shi, Aichi Japan Inside Denso Co., Ltd. (72) Inventor Tetsumi Ikeda 1-1-1, Showa-cho, Kariya-shi, Aichi Japan Japan Denso Stock In-company (56) References JP-A-3-28015 (JP, A) JP-A-64-001617 (JP, A) JP-A-62-244708 (JP, A) JP-A-2-208117 (JP, A) JP-A-56-90718 (JP, A) JP-A-63-169307 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60H 1/00 101

Claims (2)

(57) [Claims] 1. An air outlet temperature adjusting means for adjusting an air outlet temperature of air into a vehicle interior, and an arithmetic expression using at least an internal air temperature inside the vehicle interior, a preset set temperature, and a correction constant as parameters.
A vehicle comprising: a calculating means for calculating a target blowing temperature for controlling the inside air temperature to a set temperature; and a driving means for driving the blowing temperature adjusting means in accordance with the target blowing temperature calculated by the calculating means. In the air conditioner for use, an outside air temperature detecting means for detecting an outside air temperature outside the vehicle compartment, an insolation amount detecting means for detecting an amount of insolation entering into the cabin, a correction constant of the insolation amount, the outside air temperature, and the arithmetic expression Storage means for storing in advance a fuzzy rule representing the relationship between the outside air temperature and the amount of solar radiation detected by the outside air temperature detection means and the amount of solar radiation detection means, respectively. And a correction constant setting means for performing fuzzy inference on the correction constant using a rule and setting a correction constant of the arithmetic expression. 2. The vehicle air conditioner according to claim 1, wherein said storage means includes means for reducing said target blow-out temperature with an increase in said amount of solar radiation, and in which said amount of solar radiation is higher than a predetermined value. Under the condition of the amount, a fuzzy rule for setting the correction constant is stored such that the amount of reduction of the target outlet temperature is larger in winter when the outside air temperature is low than in summer when the outside air temperature is high. An air conditioner for a vehicle.