JP2001199217A - Vehicular air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To abolish an inside air temperature sensor, an outside air temperature sensor and a solar radiation sensor, and solve a problem on control caused by abolishing these sensors. SOLUTION: A noncontact temperature sensor detects a surface temperature of an inside and outside air temperature corresponding part 43 changing in the surface temperature almost in response to an indoor temperature, outside air temperature corresponding parts 44a, 45 changing in the surface temperature by being influenced by an outdoor temperature and solar radiation corresponding parts 42a, 46 changing in the surface temperature by being influenced by solar radiation. Thus, the noncontact temperature sensor can output a surface temperature signal by taking in environmental information on an inside air temperature, an outside air temperature and a quantity of solar radiation, and can properly control a room temperature in response to the inside air temperature, the outside air temperature and the quantity of solar radiation. An air conditioning control state is changed in response to whether or not a variation of the surface temperature signal is not less than a preset value to enable air conditioning control suitable for it at surface temperature signal sudden change time.

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 for automatically controlling the temperature in a passenger compartment to a set temperature desired by an occupant.

[0002]

2. Description of the Related Art A conventional air conditioner for a vehicle disclosed in Japanese Patent Application Laid-Open No. 5-178064 has a temperature setting means for setting a room temperature desired by an occupant, and an apparatus for detecting an actual temperature (internal temperature) in the room. A temperature sensor, an outside air temperature sensor for detecting an outdoor temperature (outside air temperature), an insolation sensor for detecting the amount of solar radiation into the room, and a skin temperature sensor (non-contact temperature sensor) for detecting an occupant's skin temperature. A target value of the blown air temperature (target blown air temperature) and a control target voltage of the blower for blower are calculated based on signals from the setting means and the sensors. The skin temperature sensor provided for performing control that matches the sensation of the occupant only measures the occupant's head so that only the skin temperature can be accurately detected.

As described above, while there is a demand for fine control using a large number of sensors, it is also desired to reduce the number of sensors for cost reduction. For example, Japanese Patent Application Laid-Open No. 7-179119 discloses a vehicle air conditioner in which the outside air temperature sensor is abolished by using a signal from an air temperature sensor installed upstream of the evaporator in the air flow as an outside air temperature signal. An apparatus is described.

[0004]

However, any of the above-mentioned conventional devices has a problem that the cost cannot be sufficiently reduced because a large number of sensors are used.

[0005] The present invention has been made in view of the above points, and by effectively utilizing one non-contact temperature sensor, the internal temperature sensor, the external temperature sensor, and the solar radiation sensor can be eliminated to reduce the cost. The purpose is to plan. It is another object of the present invention to solve a control problem associated with the elimination of the internal temperature sensor, the external temperature sensor, and the solar radiation sensor.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a temperature setting means (35) for setting a temperature in a room desired by an occupant, and a predetermined portion in the room. A non-contact temperature sensor (31) for detecting a surface temperature of the surface temperature signal and outputting a surface temperature signal; and a temperature change amount determining means (S
300) and the non-contact temperature sensor (31)
An inside temperature corresponding portion (43) whose surface temperature changes substantially corresponding to the indoor temperature, an outside temperature corresponding portion (44a, 45) whose surface temperature changes under the influence of the outdoor temperature, and an influence of solar radiation (42) where the surface temperature changes
a, 46), and detects the surface temperature, and sets the temperature (35).
The target outlet air temperature is calculated by using the set temperature signal and the surface temperature signal according to
The air conditioning control state is changed based on the determination result of 0).

[0007] Thus, one non-contact temperature sensor,
It can output a surface temperature signal that captures the environmental information of the inside air temperature, the outside air temperature, and the amount of insolation.Based on the surface temperature signal, appropriate room temperature control according to the inside air temperature, the outside air temperature, and the amount of insolation It can be carried out. Therefore, the internal temperature sensor, the external air temperature sensor, and the solar radiation sensor can be eliminated and the cost can be reduced while reducing the controllability of the room temperature.

Further, since the air conditioning control state is changed according to whether or not the amount of change of the surface temperature signal is equal to or greater than the set value, air conditioning control suitable for the sudden change of the surface temperature signal can be performed.

The invention according to claim 2 is characterized in that the target air volume is corrected based on the determination result of the temperature change amount determining means (S300).

Thus, the temperature change amount determining means (S30)
0) can determine, for example, the presence or absence of insolation from the amount of change in the surface temperature signal. When there is insolation, the target air volume is corrected (blower step-up control) so as to increase the amount of air blown out, thereby providing a comfortable feeling for the occupant. Can be improved.

According to the third aspect of the present invention, the temperature setting means (35) for setting the temperature in the cabin desired by the occupant.
A non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal; and a disturbance determination unit (S251) for determining whether the surface temperature signal is affected by disturbance. , S300), the inside temperature corresponding portion (43) where the surface temperature changes substantially corresponding to the indoor temperature by the non-contact temperature sensor (31), and the surface temperature changes under the influence of the outdoor temperature Outside air temperature corresponding parts (44a, 4
5) detecting the surface temperature of the portion corresponding to the solar radiation (42a, 46) whose surface temperature changes under the influence of the solar radiation, and receiving the set temperature signal and the surface temperature signal by the temperature setting means (35) as the target blown air; The temperature is calculated, and the surface temperature signal is corrected based on the determination result of the disturbance determination means (S251, S300).

Thus, when the surface temperature signal is affected by the disturbance, the surface temperature signal is corrected, so that the influence of the disturbance can be eliminated and the adverse effect of the disturbance on the air conditioning can be prevented. .

When the disturbance determining means (S251, S300) determines that the influence of the disturbance exists, the air-conditioning control is performed based on the surface temperature signal before the influence of the disturbance. Can be.

According to a fifth aspect of the present invention, the disturbance determining means (S300) determines that the influence of the disturbance exists when the amount of change in the surface temperature signal is equal to or greater than a set value.

Thus, when a high-temperature substance such as tobacco or a low-temperature substance such as juice enters the temperature detection range of the non-contact temperature sensor, it can be determined from the amount of change in the surface temperature signal. The influence of the disturbance can be eliminated and the adverse effect of the disturbance on the air conditioning can be prevented. Moreover, since the determination is made based on the amount of change in the surface temperature signal, it can be performed without newly providing a detector such as a sensor.

In the invention described in claim 6, the disturbance determination means (S251) determines that the influence of the disturbance is present when the door (44) located within the temperature detection range of the non-contact temperature sensor (31) is open. It is characterized by determining.

By the way, when the door is opened, the object to be detected by the non-contact temperature sensor changes and the surface temperature also changes, which adversely affects the air conditioning control. On the other hand, according to the invention described in claim 6, when the door is opened, it is determined that there is an influence of disturbance, and the surface temperature signal is corrected. An adverse effect on air conditioning can be prevented.

In the invention according to claim 7, the disturbance determining means (S251) determines that the influence of the disturbance is present when the window (44a) located within the temperature detection range of the non-contact temperature sensor (31) is open. It is characterized by determining.

By the way, when the window is opened, the object to be detected by the non-contact temperature sensor changes and the surface temperature also changes, which adversely affects the air conditioning control. On the other hand, in the invention according to claim 7, when the window is opened, it is determined that there is an influence of disturbance,
Since the surface temperature signal is corrected, it is possible to eliminate the influence of disturbance and prevent the influence of disturbance on air conditioning.

According to the invention described in claim 8, the temperature setting means (35) for setting the temperature in the cabin desired by the occupant.
And a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal, and the non-contact temperature sensor (31) detects the surface temperature substantially corresponding to the room temperature. (43), an external temperature corresponding portion (44a, 45) whose surface temperature changes under the influence of the outdoor temperature, and a solar corresponding portion (surface temperature of which changes under the influence of solar radiation) 42a, 46), and calculates the target blown air temperature by inputting the set temperature signal and the surface temperature signal from the temperature setting means (35), and starts the air conditioning until a predetermined time has elapsed from the start of the air conditioning. The air conditioning control is performed based on the set temperature signal at the time and the surface temperature signal at the start of the air conditioning.

When the non-contact temperature sensor includes, for example, a clothing part of an occupant as a temperature detection target, the clothing part surface temperature rapidly changes due to the cold air (or hot air) at the beginning of air conditioning. The surface temperature detected by the contact temperature sensor is lower during cooling (higher during heating) than the actual room temperature (ambient temperature). As a result, in a transient state until the air conditioning is stabilized, the air volume is reduced even though the room temperature is not completely lowered (or not completely raised), and a problem of insufficient cooling feeling (or heating feeling) occurs. I do.

On the other hand, according to the invention described in claim 8, air conditioning control is performed based on the set temperature signal at the start of air conditioning and the surface temperature signal at the start of air conditioning until a predetermined time elapses from the start of air conditioning. Is performed, it is possible to eliminate the lack of cooling sensation (or heating sensation) due to the difference between the surface temperature detected by the non-contact temperature sensor and the actual room temperature.

According to the ninth aspect of the present invention, the temperature setting means (35) for setting the temperature in the cabin desired by the occupant.
A non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal, and a seating determining means (S261) for determining whether or not the driver is seated.
And a non-contact temperature sensor (31) that changes the surface temperature substantially corresponding to the indoor temperature (4).
3) A portion corresponding to the outside air temperature (44a, 45) whose surface temperature changes under the influence of the outdoor temperature, and a portion corresponding to the solar radiation (42a) including the clothing portion of the driver whose surface temperature changes under the influence of the sunshine. , 46), the target temperature of the air to be blown out is calculated using the set temperature signal and the surface temperature signal by the temperature setting means (35) as inputs, and the seating determination means (S
261) The surface temperature signal is corrected based on the determination result.

Since the temperature detection range of the non-contact temperature sensor includes the clothing of the driver, the detection target of the non-contact temperature sensor changes depending on whether the driver is getting on (seat) or getting off. And the surface temperature signal changes suddenly,
As a result, the target outlet air temperature changes, and the outlet air temperature and the outlet air amount change suddenly. Therefore, for example, when the driver gets off the vehicle temporarily, the occupant in the vehicle feels uncomfortable or uncomfortable.

On the other hand, according to the ninth aspect of the present invention, since the surface temperature signal is corrected based on the determination result of the seating determination means, the sudden change in the target air temperature due to the driver getting on and off and the blowing are performed. It is possible to prevent a sudden change in the air temperature or the like, and prevent discomfort or discomfort.

According to the fourteenth aspect of the present invention, the temperature setting means (35) for setting the room temperature desired by the occupant.
A non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal, and a seating determination unit (S271) for determining whether or not the driver is seated.
And a non-contact temperature sensor (31) that changes the surface temperature substantially corresponding to the indoor temperature (4).
3) A portion corresponding to the outside air temperature (44a, 45) whose surface temperature changes under the influence of the outdoor temperature, and a portion corresponding to the solar radiation (42a) including the clothing portion of the driver whose surface temperature changes under the influence of the sunshine. , 46) is detected, and the target blown air temperature is calculated by using the output value of the set temperature signal and the multiplication result of the first constant and the output value of the surface temperature signal and the multiplication result of the second constant. The first and second constants are changed based on the determination result of the seat determination means (S271).

Since the temperature detection range of the non-contact temperature sensor includes the clothing of the driver, the detection target of the non-contact temperature sensor changes depending on whether the driver is getting on (seat) or getting off. And the surface temperature signal changes suddenly,
As a result, the target outlet air temperature changes, and the outlet air temperature and the outlet air amount change suddenly. Therefore, for example, when the driver gets off the vehicle temporarily, the occupant in the vehicle feels uncomfortable or uncomfortable.

On the other hand, according to the fourteenth aspect of the present invention, the first and second values for calculating the target outlet air temperature are calculated.
Since the constant is changed based on the determination result of the seat determination means (S271), it is possible to prevent a sudden change in the target outlet air temperature and a sudden change in the outlet air temperature due to the driver's getting on and off, and prevent discomfort and discomfort. it can.

According to a fifteenth aspect of the present invention, when the determination result of the seating determination means (S271) is reversed, the target outlet air temperature is gradually changed.

Thus, even if the first and second constants are changed only based on the determination result of the seat determination means (S271), the target air temperature before and after the driver gets on and off does not match the target air temperature. Sudden change can be prevented.

Note that the reference numerals in parentheses of the above means indicate the correspondence with specific means described in the embodiments described later.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a schematic diagram showing a ventilation system and a control system according to a first embodiment. As shown in the figure, the vehicle air conditioner 1 of the present embodiment is provided with a so-called air conditioning unit in an air duct 5 disposed in a front part of a vehicle cabin 3 and arranged in order from the air flow upstream of the air duct 5. And a blower 9, an evaporator (heat exchanger for cooling) 11, an air mix damper 13, a heater core (heat exchanger for heating) 15, and an air outlet switching damper 17.

Here, the inside / outside air switching damper 7 is switched to a first switching position (the position indicated by a solid line in the figure) under the drive of the servo motor 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 interior 3 flows into the air duct 5 from the inside air inlet 5b.

The blower 9 blows the outside air from the outside air inlet 5a or the inside air from the inside air inlet 5b to the evaporator 11 as an air flow according to the rotation speed of the blower motor 23 driven by the drive circuit 21. 11
Cools the airflow from the blower 9 with the refrigerant circulating by the operation of the refrigeration cycle of the air conditioner. Here, the drive circuit 21 and the blower motor 23 constitute an air volume adjusting means for adjusting the amount of air blown into the vehicle interior 3.

Next, the air mix damper 13 is driven by a servo motor 25, and according to the opening degree, the cooling air flow from the evaporator 11 flows into the heater core 15, and the remaining cooling air flow is supplied to the heater core 15 by the heater core 15. The gas is bypassed to flow toward the outlet switching damper 17. Here, the air mix damper 13 and the servo motor 25 constitute a temperature adjusting means for adjusting the temperature of the air blown into the vehicle interior 3.

On the other hand, the air outlet switching damper 17 is switched to a first switching position (a position indicated by a two-dot chain line in the figure) in the face mode of the device under the driving of the servomotor 27, and the air duct 5 is opened. The air is blown out from the air outlet 5c toward the upper body of the occupant of the passenger compartment 3, and is switched to the second switching position (the position shown by the broken line in the figure) when the device is in the foot mode. The air is blown toward the feet of the occupant 3 and the third switching position (the position indicated by the solid line in the figure) when the device is in the bi-level mode.
And air is blown out from both outlets 5c and 5d.

Next, a servo motor 19, a drive circuit 21, and servo motors 25 and 27 for driving the inside / outside air switching damper 7, the blower 9, the air mix damper 13, and the outlet switching damper 17, respectively, are an electronic control unit (ECU). The above components are driven in response to a control signal from 30.

The ECU 30 includes a surface temperature sensor (non-contact temperature sensor) 31 for detecting the surface temperature Tir of a predetermined portion in the vehicle interior 3 in a non-contact manner, a water temperature sensor 32 for detecting the temperature Tw of the engine cooling water, and the evaporator 11. An evaporator outlet temperature sensor 33 for detecting the temperature (exit temperature) Te of the cool air immediately after the passage, and an air mix damper opening sensor (hereinafter referred to as A) built in the servomotor 25 and detecting the actual opening θ of the air mix damper 13. / M opening sensor) 3
4, a temperature setter (temperature setting means) 3 for the occupant to externally set a set temperature Tset in the vehicle interior as a control target.
The output signals from 5, 5, etc. are read via the A / D converter 30e.

The temperature setting device 35 may be of the type in which the occupant sets the set temperature as described above, or may be of the warmth input type of inputting whether it is hot or cold. In the case of this warm sensation input format, the ECU sets the set temperature Tset in the vehicle interior as a control target in accordance with the input of hot or cold.
30 is set.

The ECU 30 executes air-conditioning control based on the various signals described above.
A central processing unit (hereinafter referred to as a CPU) 30a for calculating the operation amounts of the respective units in response to a signal from the CPU 0e, a ROM 30b for storing a flow chart execution instruction described later,
An output unit 30c that outputs a control signal corresponding to the operation amount calculated by the CPU 30a to each of the above units, and a crystal oscillator 30d that oscillates a reference clock of several MHz and causes the CPU 30a to execute digital arithmetic processing of software. ing.

When the ignition switch IG is turned on, the ECU 30 is operable by receiving power from the battery B, and the operation switch 36 for controlling the operation and stop of the air conditioner is turned on. Start air conditioning control.

Next, the surface temperature sensor 31 will be described in detail. Surface temperature sensor 31 of the present embodiment
Is an infrared sensor that detects the surface temperature of the test object in a non-contact manner, and more specifically, generates an electromotive force proportional to the amount of infrared light in response to a change in the amount of infrared light due to a change in the temperature of the test object. This is an infrared sensor using a thermopile-type detection element that is generated.

An operation panel of an air conditioner is installed at the center of the instrument panel (not shown) in the left-right direction of the vehicle, and a surface temperature sensor 31 is installed on the operation panel together with a temperature setting device 35, an operation switch 36 and the like. Have been. The vertical position of the surface temperature sensor 31 is substantially equal to the abdomen or chest of the driver.

FIG. 2 shows the detection range of the surface temperature by the surface temperature sensor 31. In order to detect the surface temperature in the detection range A indicated by the broken line, the surface temperature sensor 31 is controlled by the driver 4.
It is tilted slightly upward while being tilted to the second side, and the temperature detection range is adjusted accordingly. In the detection range A, the upper body (clothes) 42a of the driver 42, the head 42b of the driver 42, a part of the ceiling 43, a part of a side glass (window) 44a of a front seat door 44, and a part of a rear glass 45 are provided. It is included. In FIG. 2, reference numeral 46 denotes a front seat, and 47 denotes a rear seat.

Here, in the detection range A, the ceiling (the part corresponding to the inside temperature) 43 is not irradiated with sunlight and is hardly affected by the outside temperature due to the heat insulating material, so that the surface temperature changes substantially corresponding to the inside temperature. . In addition, the surface temperature of the glass part (the part corresponding to the outside air temperature) of the side glass 44a and the rear glass 45 changes due to the influence of the outside air temperature together with the inside air temperature, and the upper body (the part corresponding to the solar radiation) 42a receives the influence of the sunshine, and the surface temperature changes. Change. Therefore, the surface temperature sensor 31 detects the inside air temperature,
It outputs a surface temperature signal that captures environmental information such as the outside air temperature and the amount of solar radiation. Since the surface temperature of the sheets 46 and 47 also changes under the influence of solar radiation, the sheets 46 and 47 may be included in the detection range A.

Next, the air conditioning control executed by the ECU 30 will be described with reference to the flowchart shown in FIG. As shown in the figure, when the air conditioning control is started, first, in step S10
At 0, an initialization process for initial setting a counter and a flag used for executing the subsequent processes is executed.

Next, the process proceeds to step S200, in which the set temperature Tset input through the temperature setter 35 is read, the surface temperature Tir detected by the surface temperature sensor 31, and the other sensors 32 to The signal of No. 34 is read.

FIG. 4 shows an example of the output of the surface temperature Tir signal.
Sampling is performed 16 times every second, and the average value is output as the surface temperature Tir every 4 seconds and used for control. In FIG. 4, the portion B changes from no solar radiation to present, the solar radiation impinges on the upper body (clothes portion) 42 a of the driver 42 and the surface temperature Tir rises, and the portions C and D are disturbances (for example, A high-temperature substance such as tobacco or a low-temperature substance such as juice) enters the temperature detection range of the surface temperature sensor 31, and the surface temperature Tir is rapidly changed.

In step S300, a change amount ΔTir of the surface temperature is obtained from the new surface temperature Tirnew sampled this time and the old surface temperature Told sampled at the immediately preceding sample time, and the change amount ΔT
It is determined from ir whether or not there is solar radiation and whether or not the surface temperature Tir is affected by disturbance. In the present embodiment, step S300 serves as a temperature change amount determining unit and a disturbance determining unit.

FIG. 5 shows a specific control process in step S300.
Calculate Tir (ΔTir = Tirnew−Told). If there is no solar radiation and the surface temperature Tir is not affected by disturbance, steps 302 to 30
5, the most general control is performed. That is, in this case, the surface temperature Tir is stable and the amount of change Δ
Since Tir is equal to or smaller than the first set increase value Tup1, step S302 is NO, and since the blower step-up control (details will be described later) when there is solar radiation is not performed, step S303 is also NO and further affected by disturbance. Therefore, step S304 is also NO, and thus the new surface temperature Tirnew is set to the surface temperature T in step S305.
ir.

Next, under the influence of disturbance, the surface temperature Tir
Is rapidly increased, the following control is performed. That is, in this case, the surface temperature Tir sharply rises and the change amount ΔTir of the surface temperature becomes a positive value as shown in the part C of FIG. 4 and the change amount ΔTir exceeds the first set increase value Tup1, so that step S302 is YES. And step S30
Proceed to 6. In addition, since the change amount ΔTir of the surface temperature exceeds the second set increase value Tup2 (however, Tup1 <Tup2), step S306 becomes YES, and here it is determined that the surface temperature Tir is affected by the disturbance, and step S307 is performed. The old surface temperature Told is changed to the surface temperature Tir
Is set as

Next, when there is a change from no solar radiation to present, the following control is performed. That is, in this case, FIG.
Since the surface temperature Tir rises and the change amount ΔTir of the surface temperature becomes a positive value, and the change amount ΔTir exceeds the first set increase value Tup1, as shown in part B of FIG.
Is YES, and the process proceeds to step S306. Since the amount of change ΔTir in the surface temperature due to the solar radiation is not so large as to exceed the second set increase value Tup2, step S306 is NO, and it is determined here that there is solar radiation. And step S
At 308, the blower step-up level (blower voltage correction amount) is calculated according to the degree of change of the surface temperature change amount ΔTir based on the characteristic diagram of FIG. The blower step-up control described later is executed.

Next, when the state of the solar radiation continues, the following control is performed. That is, step S302 is NO because the surface temperature Tir is stable, and step S30 because the blower step-up control is executed.
3 is YES, and the process proceeds to step S309. And
When the change amount ΔTir of the surface temperature is a positive value, step S
309 is NO, and since the absolute value (| ΔTir |) of the change amount ΔTir is equal to or less than the first set decrease value Tdown1 even if the change amount ΔTir is a negative value, step S3 is performed.
09 is NO, where it is determined that the state with solar radiation is continuing, and the process proceeds to step S400 to continue the blower step-up control.

On the other hand, when the state changes from the presence of the solar radiation to the absence of the solar radiation, the following control is performed. That is, in this case, the surface temperature Tir decreases and the change amount ΔTir of the surface temperature becomes a negative value, and the absolute value (| Δ
Since Tir |) exceeds the first set decrease value Tdown1, the result of the determination in step S309 is YES, and it is determined that the state has changed from the presence of solar radiation to the absence thereof, and the flow proceeds to step S310 to cancel the blower step-up control.

Next, when the influence of disturbance on the surface temperature Tir continues, the following control is performed. That is, since the surface temperature Tir is stable, step S302 is NO, and since the blower step-up control is not executed, step S303 is also NO, and step S30 is performed.
4 is YES and the process proceeds to step S311. And
When the change amount ΔTir of the surface temperature is a positive value, step S
311 becomes NO, and even if the change amount ΔTir is a negative value, the absolute value of the change amount ΔTir becomes the second set decrease value Td.
Since it is smaller than own2 (however, Tdown1 <Tdown2), the result of step S311 is NO, and it is determined that the influence of the disturbance is continuing, and the process proceeds to step S400. Therefore, if the influence of the disturbance continues, step S30
The air-conditioning control is performed based on the old surface temperature Told that has already been set in step S7.

On the other hand, when the influence of disturbance on the surface temperature Tir is eliminated, the following control is performed. That is, since it is determined at this point that the influence of the disturbance exists, step S304 is YES and the process proceeds to step S311. Then, the surface temperature Tir suddenly drops and the change amount ΔTir of the surface temperature becomes a negative value, and the absolute value of the change amount ΔTir exceeds the second set decrease value Tdown2, so that step S311 becomes YES, and the influence of the disturbance is given here. Is determined to have disappeared, the process proceeds to step S305, and the new surface temperature Tirnew is set as the surface temperature Tir.

The first set increase value Tup1 ≒ the first set decrease value Tdown1, and the second set increase value Tup2 ≒ the second set decrease value Tdown2.

Next, returning to FIG. 3, in step S400, R is set based on the set temperature Tset and the surface temperature Tir.
The target blow-out air temperature (hereinafter referred to as TAO) is calculated using the following equation 1 stored in the OM 30b in advance.

[0060]

## EQU00001 ## TAO = Kset.times.Tset-Kir.times.Tir + C where Kset, Kir and C are constants. Further, the surface temperature Tir used in Expression 1 is determined in step S30 of FIG.
5 is the new surface temperature Tirnew set in 5 or the old surface temperature Told set in step S307.

Next, in step S500, the ROM 30b
According to the characteristic diagram of FIG. 7 stored in advance, the applied voltage (blower voltage) to the blower motor 23 corresponding to the target air volume
To determine. Basically, the blower voltage is determined based on the target blowing air temperature TAO from the solid characteristic line in FIG.
Moreover, in the state where there is solar radiation, and the target outlet air temperature TAO
Is in the intermediate region, the blower voltage is corrected to be higher as shown by the dashed characteristic lines a to c in FIG. 7 according to the blower step-up level calculated in step S308.
The amount of blown air is increased. That is, blower step-up control according to the solar radiation is performed.

In the following step S600, target outlet air temperature TAO, engine cooling water temperature Tw, and outlet temperature T
Based on e, the target opening degree θo of the air mix damper 13 is calculated using the following equation 2 stored in the ROM 30b in advance.

[0063]

Equation 2 θo = {(TAO−Te) / (Tw−Te)}
× 100 (%) Next, in step S700, based on the target outlet air temperature TAO, from the characteristic diagram stored in advance in the ROM 30b, the inside air is introduced, the outside air is introduced, or the inside / outside air is used (half). Decided to be shy).

Next, in step S800, based on the target blow-off air temperature TAO, the blow-out mode is changed to the face mode (FA) from the characteristic diagram stored in the ROM 30b in advance.
CE), bi-level mode (B / L), or foot mode (FOOT).

In step S900, the drive circuit 21, the servo motor 25, and the servo motor 1 are operated in accordance with the calculation results in steps S500 to S800.
9 and a servo motor 27 to output a blower voltage control signal, an air mix damper opening control signal, an inside / outside air introduction mode control signal, and a blowout mode control signal, respectively. Then, the process proceeds to step S1000, where it is determined whether or not the cycle time t seconds has elapsed. If NO, the process waits at step S1000, and if YES, returns to step S200.

In this embodiment, the surface temperature sensor 31 changes the surface temperature of the ceiling 43 substantially corresponding to the room temperature, the side glass 44a and the rear glass 45 whose surface temperature changes under the influence of the outside air temperature. Since the surface temperature of the upper body 42a whose surface temperature changes under the influence of solar radiation is detected, the surface temperature sensor 31 outputs a surface temperature signal that captures environmental information of the internal air temperature, the external air temperature, and the amount of solar radiation. I do. Therefore, since it is possible to perform appropriate room temperature control according to the internal temperature, the external temperature, and the amount of solar radiation, the internal temperature sensor, the external temperature sensor, and the solar radiation sensor are eliminated while reducing the deterioration of the room temperature controllability. Therefore, it is possible to reduce the sensor cost and the sensor assembling cost.

The amount of change ΔTir of the surface temperature is compared with each of the set values Tup1, Tup2, Tdown1, and Tdown2 to determine the presence or absence of solar radiation. When there is solar radiation, control to increase the amount of blown air (blower step-up control)
Therefore, the comfort of the occupant can be improved.

Further, the variation ΔTir of the surface temperature is compared with the second set values Tup2 and Tdown2, and the surface temperature Ti
r, the influence of the disturbance is determined, and when there is the influence of the disturbance, the surface temperature before the influence of the disturbance (the old surface temperature Ti
calculate the target outlet air temperature TAO by using
Since the air conditioning control is performed based on the target outlet air temperature TAO, it is possible to eliminate the influence of the disturbance and prevent the adverse effect of the disturbance on the air conditioning.

(Second Embodiment) Next, a second embodiment shown in FIG. 8 will be described. In the present embodiment, when the surface temperature Tir suddenly decreases as shown in a portion D in FIG. 4, it is determined whether or not the influence is due to disturbance (for example, a low-temperature substance such as juice). Steps S321 and S322 are added to the flowchart of FIG.

First, in the case where the surface temperature Tir has suddenly dropped due to the influence of disturbance (low temperature object), step S302
In step S321, the process proceeds to step S321. Since the absolute value of the change amount ΔTir of the surface temperature exceeds the third set decrease value Tdown3 (where Tdown1 <Tdown3), step S321 becomes YES, and the surface temperature Tir is disturbed (low temperature). ), The old surface temperature Told is set as the surface temperature Tir in step S307.

Next, when the influence of the disturbance continues, step S302 and step S321 are NO because the surface temperature Tir is stable, and step S303 is also N because the blower step-up control is not executed.
It becomes O, and step S304 becomes YES and proceeds to step S311.

When the variation ΔTir of the surface temperature is a positive value, step S311 is NO, and even if the variation ΔTir is a negative value, the absolute value of the variation ΔTir is equal to the second set decrease value Tdown2. (However, Tdown1
<Tdown2) or less, so step S311 is N
It becomes O and it progresses to step S322. If the change amount ΔTir of the surface temperature is a negative value, step S322 is NO, and even if the change amount ΔTir is a positive value, the change amount ΔTir is equal to the third set increase value Tup3 (where T
Since up1 <Tup3) or less, step S322 is NO, and it is determined that the influence of the disturbance continues, and the process proceeds to step S400. Therefore, if the influence of the disturbance continues, the air conditioning control is performed based on the old surface temperature Told already set in step S307.

On the other hand, when the influence of the disturbance (low temperature object) is eliminated, the following control is performed. That is, at this point, it is determined that the influence of the disturbance is present, and therefore, Step S30
4 is YES, the surface temperature Tir rises sharply, and the change amount ΔTir of the surface temperature becomes a positive value.
1 is NO, and it proceeds to step S322. Then, since the variation ΔTir exceeds the third set increase value Tup3, step S322 becomes YES, and it is determined that the influence of the disturbance has disappeared, and the process proceeds to step S305 to set the new surface temperature Tirnew as the surface temperature Tir.

According to the present embodiment, the influence of the disturbance of both the high-temperature object and the low-temperature object is determined, and when there is the influence of the disturbance, the surface temperature before the influence of the disturbance (the old surface temperature Ti
calculate the target outlet air temperature TAO by using
Since the air conditioning control is performed based on the target outlet air temperature TAO, it is possible to eliminate the influence of the disturbance and to surely prevent the adverse effect of the disturbance on the air conditioning.

(Third Embodiment) Next, a third embodiment shown in FIG. 9 will be described. When the front seat door 44 and the side glass 44a located within the detection range A (see FIG. 2) of the surface temperature sensor 31 are opened, the detection target of the surface temperature sensor 31 changes, the surface temperature Tir also changes, and the air conditioning control is performed. Adversely affect Therefore, in the present embodiment, the surface temperature sensor 3
When the front seat door 44 and the side glass 44a located within the first detection range are opened, it is determined that there is an influence of disturbance on the surface temperature Tir.

In FIG. 9, in step S200, signals from the temperature setter 35 and the sensors 31 to 34 are read, a door switch signal which is turned on / off in accordance with opening / closing of the front seat door 44, and a side glass 44a is opened / closed. To read the signal of the power window switch.

Next, the process proceeds to step S251 (disturbance determination means). In step S251, it is determined whether or not the front door 44 or the side glass 44a is opened based on the door switch signal and the power window switch signal. If they are closed, step S251 is NO, and in step S252, the new surface temperature Tirnew is set as the surface temperature Tir.

On the other hand, the front door 44 or the side glass 4
If step 4a is opened, step S251 is YES, and it is determined that there is an influence of disturbance.
At 3, the old surface temperature Told is set as the surface temperature Tir. Therefore, the front door 44 or the side glass 4
If 4a is opened, in step S400, the target outlet air temperature TAO is calculated based on the set temperature Tset and the old surface temperature Told.

As described above, when the front seat door 44 and the side glass 44a located within the detection range of the surface temperature sensor 31 are opened, it is determined that there is an influence of disturbance, and the surface temperature (before the influence of the disturbance) is determined. The target outlet air temperature TAO is calculated using the old surface temperature Told), and the air conditioning control is performed based on the target outlet air temperature TAO. Therefore, the influence of the disturbance is eliminated, and the adverse effect of the disturbance on the air conditioning is eliminated. Can be prevented.

(Fourth Embodiment) Next, a fourth embodiment shown in FIGS. 10 and 11 will be described. By the way, in the early stage of the air conditioning, the surface temperature of the upper body (clothes part) 42a and the head 42b of the driver 42 to be detected by the surface temperature sensor 31 is rapidly increased by the cold air (or hot air) at the beginning of the air conditioning. As a result, the surface temperature Tir detected by the surface temperature sensor 31 becomes lower during cooling (higher during heating) than the actual room temperature (ambient temperature). As a result, in a transient state until the air conditioning is stabilized, the room temperature is not completely lowered (or not completely raised).
However, there is a problem in that the air volume is reduced and the feeling of cooling (or the feeling of heating) is insufficient.

In this embodiment, the air conditioning control is performed based on the set temperature signal at the start of air conditioning and the surface temperature signal at the start of air conditioning until a predetermined time has elapsed since the start of air conditioning. The problem of lack of cooling and heating sensation is solved.

In the present embodiment, in the flowchart of FIG. 3 in the first embodiment, the control processing of step 500 is partially changed, and FIG.
The specific control processing of 500 'is shown.

In FIG. 10, in step S501,
The operation switch 36 (FIG. 1) is in the air-conditioning stop request state (air-conditioning O
FF) to determine whether or not the air conditioner operation has been requested (air conditioner ON). If the air conditioner has been operated from air conditioner OFF to air conditioner ON, step S501 becomes YES and step S5 is performed.
Go to 02. If NO in step S502, the process proceeds to step S503. In this step S503, based on the heat load (Tset-Tir) at the start of air conditioning, the blower at the start of air conditioning starts to increase the air flow as the heat load increases. Determine the voltage.

Next, the process proceeds to step S504, in which the time (first set time) T1 for fixing (maintaining and maintaining) the blower voltage determined in step S503 is defined as the heat load (T
set-Tir) is determined from the characteristic line in FIG. Then, the process proceeds to step S600, and then proceeds to step S900 in FIG. 3. In step S900, a blower voltage control signal is output in accordance with the calculation results in steps S503 and S504.

Next, when the air conditioner is ON,
Step S501 becomes NO and the process proceeds to step S505. In this step S505, it is determined whether a first set time T1 has elapsed after the start of the air conditioning. Step S505 is performed until the first set time T1 elapses after the start of the air conditioning.
Is NO, and the process proceeds to step S600.

Next, when the first set time T1 has elapsed after the start of air conditioning, step S505 becomes YES and step S5
Proceed to 06. Then, after the first set time T1 elapses, until the second set time T2 elapses, step S506 is performed.
Is NO, and the process proceeds to step S507. Step S5
At 07, the blower voltage is determined so that the blower voltage gradually decreases with time.

Here, the second set time T2 may be constant, or according to the difference between the blower voltage determined at the start of air conditioning and the blower voltage based on the target blown air temperature TAO after the lapse of the first set time T1. It may be changed.

Next, when the second set time T2 has elapsed, step S506 becomes YES and the process proceeds to step S508. In step S508, as usual, the blower voltage is determined based on the target blown air temperature TAO.

Therefore, according to the present embodiment, the blower voltage determined in step S503 based on the heat load at the start of air conditioning is maintained until the first set time T1 elapses after the start of air conditioning. Thereby, even if the surface temperature of the upper body (clothes part) 42a and the head 42b of the driver 42 changes rapidly due to the cold air (or hot air) at the beginning of the air conditioning, the first set time T1 elapses after the air conditioning is started. Since the amount of the blown air does not decrease until the cooling air (or the feeling of cooling) is insufficient, it is possible to eliminate the lack of cooling feeling (or heating feeling).

After the elapse of the first set time T1, the blower voltage is gradually reduced, and then the normal blower control is performed. can do.

(Fifth Embodiment) Next, a fifth embodiment shown in FIGS. 12 to 14 will be described. In each of the above embodiments, the driver 4 is set as the temperature detection range of the surface temperature sensor 31.
12, the detection target of the surface temperature sensor 31 changes depending on whether the driver 42 is getting on (seated) or getting off, and therefore, as shown in FIG.
r changes by α, so that the target outlet air temperature TAO
Changes, and the outlet air temperature and the outlet air amount change suddenly.

[0092] Therefore, when the driver 42 gets off the vehicle temporarily, the occupant in the vehicle feels uncomfortable or uncomfortable. Also, for example, when the driver 42 gets off the vehicle temporarily during warm-up in the vehicle and gets on the vehicle after a while, the surface temperature Tir changes and the temperature of the blown air suddenly changes, so that the driver 42 feels uncomfortable or uncomfortable.

Therefore, in this embodiment, the surface temperature sensor 31
When the driver 42 to be detected is not in the vehicle, the signal of the surface temperature Tir is corrected to prevent the above problem.

In the present embodiment, as shown in FIG. 13, a seating sensor (seating detecting means) 37 is provided on the seat surface of the driver's seat in order to detect whether or not the driver 42 is on board. . Then, in the flowchart of FIG. 14, in step S261 (seating determination means), it is determined whether or not the driver 42 is riding on the basis of the signal of the seating sensor 37. The configuration of the air conditioner 1 is the same as that of the first embodiment except that a seat sensor 37 is provided.
Further, the processing of steps S261 to S263 of the flowchart of FIG. 14 is executed between steps S200 and S400 of the flowchart of FIG.

In FIG. 14, when the driver 42 is in the vehicle, step S261 is NO and step S2 is performed.
The process proceeds to 62, and in step S262, the surface temperature Tirin during riding is set as the surface temperature Tir. next,
Proceeding to step S400 (FIG. 3), the target outlet air temperature TAO is calculated based on the set temperature Tset and the surface temperature Tir.

On the other hand, if the driver 42 gets off the vehicle, step S261 becomes YES and the process proceeds to step S263. In step S263, the surface temperature Tiro at the time of getting off is obtained.
The value obtained by adding the correction amount α to ut is set as the surface temperature Tir. Next, the process proceeds to step S400, where the set temperature T
The target outlet air temperature TAO is calculated based on the set and the corrected surface temperature Tir. Here, as shown in FIG. 12, the correction amount α is a difference between the surface temperature immediately before determining that the driver gets off (that is, when the driver gets on the vehicle) and the surface temperature immediately after determining that the driver gets off.

If the driver 42 gets on the vehicle again, step S261 is NO, and in step S262, the on-boarding surface temperature Tirin is set as the surface temperature Tir.

As described above, when the driver 42 to be detected by the surface temperature sensor 31 is not on board, the signal of the surface temperature Tir is corrected so that the driver 42
Abrupt changes in the target outlet air temperature TAO and the outlet air temperature due to getting on and off of the vehicle can be prevented, and discomfort and discomfort can be prevented.

In a vehicle equipped with an infrared sensor for detecting whether or not a person is in the vehicle security system, the infrared sensor is used as the seating sensor 3.
7 may be used instead.

Further, the correction amount α may be determined as follows. First, when the driver 42 gets off, the exposed portion of the skin such as the head 42b and the hand of the driver 42 is excluded from the temperature detection target of the surface temperature sensor 31 and the value of the surface temperature Tir changes. Determined in consideration of. Also,
This point is also taken into account because there is a difference in the exposed area of the skin between summer and winter. In addition, instead of excluding the upper body (clothes part) 42a of the driver 42 from the temperature detection target, the seat 46 is subjected to the temperature detection target. However, since the temperature difference between them is small, it is not considered here.

Then, the skin temperature of the exposed portion of the driver 42 is set to 30.
Assuming that the exposed area ratio of the skin within the temperature detection range of the surface temperature sensor 31 is 15% in summer and 5% in winter, the correction amount α in summer is α = 0.15 × (30−Tir
in). On the other hand, the correction amount α in winter is α = 0.05
X (30-Tirin).

Here, the determination of summer or winter can be made based on the target outlet air temperature TAO calculated first after the engine is started or the surface temperature Tir detected first after the engine is started. In addition, when an outside air temperature sensor is used in combination for more detailed air conditioning control, it may be determined whether the outside air temperature is summer or winter.

(Sixth Embodiment) Next, a sixth embodiment will be described. The sixth embodiment is a method of determining whether or not the driver 42 is in the fifth embodiment,
This is a modification of the method of correcting the signal of the surface temperature Tir.

That is, in the present embodiment, when the vehicle speed = 0 (stop) and the driver's seat seat belt is not worn, and the driver's door switch signal is closed → open → closed, the driver 42 Is determined to have temporarily got off.

At this time, as shown in FIG. 15, when the driver's seat door is open, the surface temperature Tir fluctuates greatly. Therefore, while the driver's seat door is open, the boarding surface temperature immediately before the driver's seat door is opened. The target blow-out air temperature TAO is calculated using Tirin as the surface temperature Tir. Thereafter, when the driver's seat door is closed and it is determined that the driver gets off, the difference between the boarding surface temperature Tirin immediately before the driver's door is opened and the get-off surface temperature Tirout at the time of determining that the driver gets off is determined. α is calculated, and thereafter, the target outlet air temperature TAO is calculated by using a value obtained by adding a change amount (correction amount) α of the detected temperature to the surface temperature Tirout at the time of getting off as the surface temperature Tir.

As a result, it is possible to prevent a sudden change in the target outlet air temperature TAO and a sudden change in the outlet air temperature due to the getting on and off of the driver 42, and to prevent a sense of discomfort and discomfort.

When determining whether or not the driver 42 is riding, if the determination is based on a sensor signal for directly detecting whether or not the driver 42 is riding as in the fifth embodiment, an error occurs. Although there is no determination, when the determination is made based on the driver's door switch signal or the like as in the present embodiment, it is determined that the vehicle has been dismounted, even if, for example, only the door is opened and the vehicle is not dismounted. Therefore, even if the signal of the surface temperature Tir is corrected based on the determination that the driver gets off the vehicle, the vehicle speed> 0,
Alternatively, when the driver's seat belt is put on and the situation is determined to be a driver's entry, the correction of the signal of the surface temperature Tir is stopped. At this time, there is a possibility that the target blowing air temperature TAO may suddenly change due to the suspension of the correction. Therefore, it is desirable to gradually change the target blowing air temperature TAO.

As described above, the correction amount α according to the present embodiment can be calculated from the skin temperature of the exposed portion of the driver 42, the ratio of the exposed area of the skin within the temperature detection range of the surface temperature sensor 31, and the like. Good.

Further, instead of determining the vehicle speed = 0 (stop) based on the vehicle speed signal, the stop may be determined based on the parking brake signal or the P range position signal of the shift lever.

(Seventh Embodiment) Next, the seventh embodiment shown in FIG.
An embodiment will be described. In the fifth embodiment, when the driver 42 to be detected by the surface temperature sensor 31 is not in the vehicle, the signal of the surface temperature Tir is corrected so that the target blowing air temperature T due to the driver 42 getting on and off.
Although a sudden change in AO is prevented, in the seventh embodiment, the constants Kset, Kir, and C of the equation for calculating the target blown air temperature TAO (see Expression 1 in the first embodiment) are set at the time of driver riding. And the time of getting off, the driver 42
This prevents sudden change in the target outlet air temperature TAO due to getting on and off of the vehicle.

The configuration of the air conditioner 1 is the same as that of the fifth embodiment. Further, the processing of steps S271 to S273 of the flowchart of FIG. 16 is executed between step S200 and step S500 of the flowchart of FIG.

The present embodiment will be described with reference to the flowchart of FIG. Step S271 (seating determination means)
Then, it is determined whether or not the driver 42 is riding in the same manner as in step S261 of the fifth embodiment. If the driver 42 is riding, step S271 is NO and the process proceeds to step S272. In step S272, using the riding time constants Kset1, Kir1, and C1 tuned so that the passenger compartment is comfortable when riding. The target outlet air temperature TAO is calculated. Next, step S500
Proceeding to (FIG. 3), the applied voltage (blower voltage) to the blower motor 23 is determined based on the target blown air temperature TAO calculated in step S272.

On the other hand, if the driver 42 has got off the vehicle, step S271 results in YES, and the process proceeds to step S273. In step S273, the getting-off time constants Kset2 and Kset tuned so that the passenger compartment becomes comfortable when getting off.
Using ir2 and C2, the target outlet air temperature TAO is calculated. Next, the process proceeds to step S500 (FIG. 3), and the applied voltage (blower voltage) to the blower motor 23 is determined based on the target blow-off air temperature TAO calculated in step S273.

As described above, in the present embodiment, the multiplication result of the set temperature Tset and its constant (first constant) Kset and the multiplication result of the surface temperature Tir and its constant (second constant) Kir are used. In the calculation of the target outlet air temperature TAO, by changing those constants when the driver gets on and off the vehicle, sudden changes in the target outlet air temperature TAO and sudden changes in the outlet air temperature due to the driver 42 getting on and off the vehicle can be obtained. It can prevent discomfort and discomfort.

In the present embodiment, the driver 42
The sudden change in the target outlet air temperature TAO due to getting on and off of the vehicle is prevented.However, when trying to match the target outlet air temperature TAO before and after the driver gets on and off under all conditions including a transition such as a cool down or a warm up. , The control may be too complicated.

Therefore, as shown in part E of FIG. 17, the TAO when the driver gets on the vehicle gradually changes from the TAO when getting off (or the TAO when getting off the vehicle to TAO when getting on).
The temperature may be changed with a predetermined time constant, or a limit on the amount of temperature change per time such as 1 ° C./4 seconds may be provided.

In a vehicle equipped with an infrared sensor for detecting whether or not a person is in the vehicle security system, the driver 42 enters the vehicle in step S271 based on the signal from the infrared sensor. It may be determined whether or not there is.

Further, as in the sixth embodiment, the vehicle speed = 0
If the driver's seat door switch signal is closed → open → closed (stop) and the driver's seat belt is not worn, it may be determined that the driver 42 has temporarily got off.

(Other Embodiments) In the above embodiment, an infrared sensor using a thermopile type detecting element is exemplified as the surface temperature sensor 31. However, a bolometer type detecting element constituted by a resistor having a large temperature coefficient is used. The used infrared sensor or another type of infrared sensor may be used. Furthermore, not limited to the infrared sensor, another type of surface temperature sensor (non-contact temperature sensor) that detects the surface temperature of the test object in a non-contact manner may be used.

In the fourth embodiment, the blower voltage is determined based on the heat load (Tset-Tir) at the start of air conditioning until a predetermined time has elapsed from the start of air conditioning (early start of air conditioning). Blower voltage at the beginning of air conditioning,
All or a part of the target opening θo of the air mix damper, the inlet mode and the outlet mode may be determined based on the heat load (Tset−Tir) at the start of air conditioning.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating an overall configuration of a first embodiment of the present invention.

FIG. 2 is a perspective view of a vehicle cabin showing a detection range of a surface temperature sensor of FIG. 1;

FIG. 3 is a flowchart illustrating an air-conditioning control process executed by an ECU of FIG. 1;

FIG. 4 is a time chart illustrating an example of signal output of the surface temperature sensor of FIG. 1;

FIG. 5 is a flowchart showing a control process in step 300 of FIG.

FIG. 6 is a control characteristic diagram at a step-up level.

FIG. 7 is a control characteristic diagram of a blower.

FIG. 8 is a flowchart showing a second embodiment of the present invention.

FIG. 9 is a flowchart showing a third embodiment of the present invention.

FIG. 10 is a flowchart showing a fourth embodiment of the present invention.

FIG. 11 is a control characteristic diagram of a blower at the beginning of air conditioning.

FIG. 12 is a time chart showing an example of signal output of a surface temperature sensor for explaining the operation of the fifth embodiment of the present invention.

FIG. 13 is a schematic configuration diagram illustrating an overall configuration of a fifth embodiment of the present invention.

FIG. 14 is a flowchart illustrating a fifth embodiment of the present invention.

FIG. 15 is a time chart showing an example of signal output of a surface temperature sensor for explaining the operation of the sixth embodiment of the present invention.

FIG. 16 is a flowchart illustrating a seventh embodiment of the present invention.

FIG. 17 is a time chart showing an example of signal output of a surface temperature sensor for explaining the operation of the seventh embodiment of the present invention.

[Explanation of symbols]

5 air duct, 11 evaporator (heat exchanger for cooling), 13, 25 air mix damper and servo motor serving as temperature control means, 15 heater core (heat exchanger for heating), 31 surface temperature sensor (non-contact) Temperature sensor), 35: temperature setting device (temperature setting means), 42a: occupant clothing part (part corresponding to solar radiation), 43: ceiling (part corresponding to internal temperature), 44a, 45: glass part (part corresponding to outside temperature), 4
6: Sheet (part corresponding to solar radiation), S300: Temperature change amount determination means and disturbance determination means.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeki Harada 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Corporation (72) Inventor Hiroyuki Tomita 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Denso Corporation F-term (for reference) 3L011 AF01 AF02

Claims (15)

[Claims] A heat exchanger (11, 15) disposed in an air duct (5) for exchanging heat with air, and a temperature adjusting means for adjusting a temperature of air blown into the room from the air duct (5). (13, 25), in the vehicle air conditioner for controlling the temperature adjusting means (13, 25) such that the temperature of the air blown out from the air duct (5) becomes the target temperature of the blown air, Temperature setting means (35) for setting a room temperature; a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion of the room and outputting a surface temperature signal; and an amount of change in the surface temperature signal Temperature change determining means (S300) for determining whether or not the temperature is equal to or greater than a set value. 43),
Detecting the surface temperature of the outside air temperature corresponding portion (44a, 45) where the surface temperature changes under the influence of the outdoor temperature, and the surface temperature of the solar temperature corresponding portion (42a, 46) where the surface temperature changes under the influence of solar radiation; Calculating the target blown air temperature by inputting the set temperature signal and the surface temperature signal by the temperature setting means (35), and changing the air conditioning control state based on the determination result of the temperature change amount determining means (S300). A vehicle air conditioner characterized by the above-mentioned. 2. An air volume adjusting means (21, 23) for adjusting an amount of air blown into the room from the air duct (5), wherein the air volume is adjusted so that an air volume blown out from the air duct (5) becomes a target air volume. A vehicle air conditioner for controlling means (21, 23), wherein the target air volume is corrected based on a determination result of the temperature change amount determining means (S300).
A vehicle air conditioner according to claim 1. 3. A heat exchanger (11, 15) arranged in the air duct (5) for exchanging heat with air, and a temperature adjusting means for adjusting the temperature of air blown into the room from the air duct (5). (13, 25), in the vehicle air conditioner for controlling the temperature adjusting means (13, 25) such that the temperature of the air blown out from the air duct (5) becomes the target temperature of the blown air, Temperature setting means (35) for setting a room temperature; a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion of the room and outputting a surface temperature signal; A disturbance determining means (S251, S300) for determining whether or not the temperature is affected by the inside temperature corresponding portion where the surface temperature changes substantially corresponding to the indoor temperature by the non-contact temperature sensor (31); 43) ,
Detecting the surface temperature of the outside air temperature corresponding portion (44a, 45) where the surface temperature changes under the influence of the outdoor temperature, and the surface temperature of the solar radiation portion (42a, 46) where the surface temperature changes under the influence of the solar radiation; The target outlet air temperature is calculated by inputting the set temperature signal and the surface temperature signal by the temperature setting means (35), and the surface temperature signal is corrected based on the determination result of the disturbance determination means (S251, S300). An air conditioner for a vehicle, comprising: 4. The disturbance determination means (S251, S30)
4. The vehicle air conditioner according to claim 3, wherein when 0) is determined to have the influence of the disturbance, the air conditioning control is performed based on the surface temperature signal before the influence of the disturbance. 5. 5. The vehicle according to claim 3, wherein the disturbance determining means (S300) determines that the influence of the disturbance is present when the amount of change in the surface temperature signal is equal to or greater than a set value. Air conditioner. 6. The disturbance determining means (S251) determines that the influence of the disturbance is present when the door (44) located within the temperature detection range of the non-contact temperature sensor (31) is open. The vehicle air conditioner according to claim 3 or 4, wherein 7. The disturbance determining means (S251) determines that the influence of the disturbance is present when the window (44a) located within the temperature detection range of the non-contact temperature sensor (31) is open. The vehicle air conditioner according to claim 3 or 4, wherein 8. A heat exchanger (11, 15) arranged in the air duct (5) for exchanging heat with air, and a temperature adjusting means for adjusting the temperature of air blown into the room from the air duct (5). (13, 25), in the vehicle air conditioner for controlling the temperature adjusting means (13, 25) such that the temperature of the air blown out from the air duct (5) becomes the target temperature of the blown air, A temperature setting means (35) for setting the temperature in the room; and a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal, wherein the non-contact temperature sensor According to (31), the inside air temperature corresponding portion (43) where the surface temperature changes substantially corresponding to the indoor temperature,
Detecting the surface temperature of the outside air temperature corresponding portion (44a, 45) where the surface temperature changes under the influence of the outdoor temperature, and the surface temperature of the solar temperature corresponding portion (42a, 46) where the surface temperature changes under the influence of solar radiation; The target outlet air temperature is calculated by inputting the set temperature signal and the surface temperature signal by the temperature setting means (35), and the set temperature signal and the air conditioning at the start of the air conditioning until a predetermined time has elapsed from the start of the air conditioning. An air conditioning system for a vehicle, wherein air conditioning control is performed based on the surface temperature signal at the start. 9. A heat exchanger (11, 15) disposed in an air duct (5) for exchanging heat with air, and a temperature adjusting means for adjusting a temperature of air blown into the room from the air duct (5). (13, 25), in the vehicle air conditioner for controlling the temperature adjusting means (13, 25) such that the temperature of the air blown out from the air duct (5) becomes the target temperature of the blown air, Temperature setting means (35) for setting the temperature in the room; a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal; A seat determination unit (S <b> 261) for determining whether or not there is an indoor temperature corresponding portion (43) whose surface temperature changes substantially corresponding to the indoor temperature by the non-contact temperature sensor (31);
Outside air temperature corresponding parts (44a, 45) whose surface temperature changes under the influence of outdoor temperature, and solar light corresponding parts (42a, 46) including a clothing part of a driver whose surface temperature changes under the influence of solar radiation Detecting the surface temperature of the target, calculating the target blown air temperature by using the set temperature signal and the surface temperature signal by the temperature setting means (35) as inputs, and calculating the target surface air temperature based on the determination result of the seating determination means (S261). A vehicle air conditioner that corrects a temperature signal. 10. A predetermined correction amount (α) is added to said surface temperature signal when said seat determination means (S261) determines that said driver is not seated. A vehicle air conditioner according to claim 1. 11. The correction amount (α) is calculated based on the surface temperature signal immediately before the driver is determined not to be seated and the surface temperature signal immediately after the driver is determined not to be seated. The vehicle air conditioner according to claim 10, wherein the difference is: 12. The method according to claim 1, wherein the correction amount is calculated based on an area ratio of the driver in a temperature detection range of the non-contact temperature sensor.
0. The vehicle air conditioner according to 0. 13. The vehicle air conditioner according to claim 12, wherein the correction amount (α) is changed according to a season. 14. A heat exchanger (11, 15) disposed in an air duct (5) for exchanging heat with air, and a temperature adjusting means for adjusting a temperature of air blown into the room from the air duct (5). (13, 25), in the vehicle air conditioner for controlling the temperature adjusting means (13, 25) such that the temperature of the air blown out from the air duct (5) becomes the target temperature of the blown air, Temperature setting means (35) for setting the temperature in the room; a non-contact temperature sensor (31) for detecting a surface temperature of a predetermined portion in the room and outputting a surface temperature signal; A non-contact temperature sensor (31), and an inside air temperature corresponding portion (43) in which a surface temperature changes substantially corresponding to a room temperature by the non-contact temperature sensor (31);
Outside air temperature corresponding parts (44a, 45) whose surface temperature changes under the influence of outdoor temperature, and solar light corresponding parts (42a, 46) including a driver's clothing part whose surface temperature changes under the influence of solar radiation The target blown air temperature is calculated using the output value of the set temperature signal and the result of multiplication of the first constant, and the output value of the surface temperature signal and the result of multiplication of the second constant. An air conditioner for a vehicle, wherein the first and second constants are changed based on a determination result of the seat determination means (S271). 15. The air conditioner for a vehicle according to claim 14, wherein the target outlet air temperature is gradually changed when the determination result of the seat determination unit (S271) is reversed.