JP2006327307A - Vehicle interior temperature control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the air conditioning comfortability felt by an occupant without any complicated operation. <P>SOLUTION: This vehicle interior temperature control device is furnished with temperature detection means 31, 35 to detect temperatures Ta, Ts of a plurality of different elements exerting harmful influences upon the air conditioning comfortability felt by the occupant , a temperature adjustment means 1A to respectively adjust the temperatures Ta, Ts of the different detected elements, a deterioration rate setting means 20 to respectively set degrees of deviation (deterioration margin of sensed temperature)ΔTSa, ΔTSs from optimum values Ta*, Ts* of a warm temperature sensing level corresponding to each of the temperatures detected by the temperature detection means 31, 35 and a temperature control means 20 to control the temperature adjusting means 1A in accordance with the deterioration margin ΔTSa, ΔTSs of the sensed temperature set by the deterioration margin setting means 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a passenger compartment temperature control device that controls the temperature of each part in a passenger compartment in accordance with the temperature level of a passenger.

  2. Description of the Related Art Conventionally, there has been known an apparatus that controls air conditioning in a passenger compartment so that the sensation felt by an occupant becomes a manually set sensation level (see, for example, Patent Document 1). According to the device described in Patent Document 1, when the air conditioning is started, the occupant operates the temperature level setting switch to set the temperature level, and the operation of the air conditioning unit so as to reach the set temperature level. To control.

JP-A-6-234318

  However, in the apparatus described in Patent Document 1, since the warmth level is manually set, it takes time and trouble to obtain the optimal warmth for the passenger.

  A vehicle interior temperature control apparatus according to the present invention includes a temperature detection unit that detects temperatures of a plurality of different elements that adversely affect the air conditioning comfort of a passenger, a temperature adjustment unit that adjusts the temperatures of the detected different elements, The degree of deviation from the optimum value of the temperature level corresponding to each temperature detected by the temperature detecting means based on the characteristics of the temperature level sensed by the occupant when a plurality of defined temperatures are used as variables (temperature sensitivity) A deterioration allowance setting means for setting the temperature deterioration means, and a temperature control means for controlling the temperature adjusting means so as to reduce the deterioration allowance for the thermal sensation set by the deterioration allowance setting means.

  According to the present invention, based on the characteristic of the occupant's thermal sensation level determined in advance, each of the temperature of the different elements is set for the deterioration sensation of the thermal sensation, Since the temperature of the element is controlled, it is not necessary to manually set the temperature sense level, and an optimum temperature sense for the passenger can be easily obtained.

-First embodiment-
A first embodiment of a vehicle interior temperature control apparatus according to the present invention will be described with reference to FIGS.
In the first embodiment, one temperature control device (air conditioning unit 1A) controls two elements (vehicle interior temperature and seat surface temperature) that affect passenger comfort at the same time. That is, the air conditioning unit 1A is used as a room temperature control device and a seat temperature control device. In addition, the element as a control target may be a surface temperature (referred to as a radiation temperature) of a member such as an instrument panel or a door trim.

  FIG. 1 is a diagram showing a schematic configuration of a vehicle interior temperature control apparatus according to the first embodiment. When the blower fan 3 rotates by driving the blower motor 2A, the inside air or the outside air is sucked into the air conditioning unit 1A via the inside / outside air switching door 4, and the sucked air passes through the evaporator 5 and is cooled. The air that has passed through the evaporator passes through the heater core 7 at a rate corresponding to the opening of the air mix door 6 and is heated, or bypasses the heater core 7 while still being cooled air.

  Air that has passed or bypassed the heater core 7 is mixed in an air mix chamber downstream of the heater core 7 to generate conditioned air. The conditioned air is blown from a vent outlet, a defrost outlet, and a foot outlet (not shown) through the vent door 8, the defrost door 9, and the foot door 10 that open and close according to the outlet mode. That is, in the vent mode, the vent door 8 is opened, and the conditioned air is blown from the vent outlet toward the occupant's upper body. In the defrost mode, the defrost door 9 is opened, and the conditioned air is blown from the defrost outlet toward the surface of the window. In the foot mode, the foot door 10 is opened, and the conditioned air is blown from the foot outlet toward the foot of the passenger.

  The conditioned air from the air conditioning unit 1A is not only blown from each outlet, but also from the seat surface. That is, the air passage 16 is formed inside the seat 15, and the air passage 16 is connected to the air mix chamber of the air conditioning unit 1 </ b> A via the duct 17. As a result, the conditioned air from the air conditioning unit 1A is guided into the air passage 16 through the opening / closing door 11 and blown out of the seat.

  FIG. 2 is a block diagram showing a control configuration of the temperature control apparatus according to the first embodiment. The controller 20 is connected to an air conditioning control sensor group 30 and an operation panel 40 through which an occupant inputs an air conditioning command. The sensor group 30 includes an inside air temperature sensor 31 that detects the temperature Ta in the vehicle interior, an outside air temperature sensor 32 that detects the outside air temperature, a solar radiation sensor 33 that detects the amount of solar radiation, and a suction temperature sensor 34 that detects the air temperature after passing through the evaporator. , Various sensors such as a sheet temperature sensor 35 for detecting the temperature Ts of the sheet surface. The operation panel 40 includes an auto switch 41 for instructing an automatic air conditioner operation, a mode setting switch 42 for manually setting the air outlet mode, a fan switch 43 for manually setting the fan air volume, a temperature adjustment switch 44 for inputting a target temperature in the vehicle compartment, and the like. including.

  The controller 20 executes predetermined processing based on the input signals from these, and the blower motor 2A, the air mix door driving actuator 21A for driving the air mix door 6, and the outlet door (the vent door 8, the defrost door 9, Control signals are respectively output to the outlet door driving actuator 22A for driving the foot door 10 and the opening / closing door 11).

  FIG. 3 is a flowchart showing an example of processing executed by the controller 20. This flowchart starts when, for example, an auto air conditioner operation is commanded by operating the auto switch 41, and ends when a command other than the auto air conditioner command is commanded. By this automatic air conditioning operation, the vehicle interior temperature Ta and the seat surface temperature Ts are controlled as follows.

  First, in step S1, signals from the sensor group 30 and the operation unit 40 are read, and in step S2, a target air mix door opening is calculated. The target air mix door opening can be obtained by a well-known arithmetic expression based on signals from the inside air temperature sensor 31, the outside air temperature sensor 32, the solar radiation sensor 33, the suction temperature sensor 34, and the temperature adjustment switch 44.

  In step S3, it is determined whether the cooling operation or the heating operation is performed based on the target air mix door opening. Note that the presence or absence of the cooling operation and the heating operation may be determined according to the outside air temperature. If it is determined that the cooling operation is to be performed, the process proceeds to step S4, in which it is determined whether or not both the deterioration degree ΔTSa of the thermal sensation regarding the cabin temperature Tin and the deterioration margin ΔTSs of the thermal sensation regarding the seat surface temperature Ts can be made zero. judge.

  Here, “the deterioration margin of thermal sensation” ΔTS will be described. In the present embodiment, the room temperature Ta and the seat temperature Ts that are temperature-controlled by the air blowing from the air conditioning unit 1A, and the temperature of the member in the vehicle compartment that is cooled or heated by the air blowing from the air conditioning unit 1A (radiation temperature Tr). The subject was exposed to a space where various combinations were made, and an experiment was conducted to report the thermal sensation of the whole body (body sensation).

As shown in FIG. 5, in this experiment, the reported value is 0 when the subject feels comfortable, the reported value is positive when the subject feels hot, and the reported value is negative when the subject feels cold. The larger the value is, the larger the declared value is on the plus side or minus side. Using this experimental data, a multiple regression analysis was performed using room temperature Ta, seat temperature Ts, and radiation temperature Tr as explanatory variables (independent variables) and whole body thermal sensation as an objective variable (dependent variable). ) Can be created.
Whole body thermal sensation = αTa + βTs + γTr + δ (I)

The same experiment for reporting thermal sensation can be performed not only for the whole body but also for each part of the body (for example, the back and chest), so that not only the whole body but also each part is the same as the above formula (I) A thermal sensation prediction formula can be created. Then, by solving the above equation (I) and the thermal sensation prediction formula of the two parts as simultaneous equations, in addition to the whole body thermal sensation, the temperature at which each part feels neutral, that is, the whole body is equal. Thus, the comfortable temperatures Ta *, Ts *, and Tr * (these are called comfortable temperatures) can be obtained. Using this value, the above equation (I) can be transformed into the following equation (II).
Whole body thermal sensation = α (Ta−Ta *) + β (Ts−Ts *) + γ (Tr−Tr *) (II)

Each term of the above formula (II) is defined by the following formulas (III) to (V) as “deterioration of thermal sensation” for each element of the room temperature Ta, the sheet temperature Ts, and the radiation temperature Tr.
ΔTSa = α (Ta-Ta *) (III)
ΔTSs = β (Ts−Ts *) (IV)
ΔTSr = γ (Tr-Tr *) (V)
Here, when the sum ΣΔTS (= ΔTSa + ΔTSs + ΔTSr) of the exacerbation of thermal sensation of each element is 0, the whole body thermal sensation is neutral (comfortable), and the thermal sensation of each element deteriorates. When the charges ΔTSa, ΔTSs, and ΔTSr are all 0, it means that the whole body is uniformly comfortable.

  FIG. 4 shows an example of a graph “comfort plane” of a function with ΣΔTS = 0, and FIG. 5 shows a result of a passenger comfort evaluation experiment performed in advance. In this embodiment, a case where two elements (room temperature Ta and sheet temperature Ts) are controlled by detecting room temperature Ta and sheet temperature Ts will be described. In addition to this, the radiation temperature Tr of the member is detected. Thus, the three elements (room temperature Ts, seat temperature Ts, and radiation temperature Tr) can be controlled so as to ride on the “comfort plane” of FIG.

  The α, β, Ta *, and Ts * obtained in this way are stored in advance in the memory as set values for obtaining the thermal sensation deterioration margins ΔTSa and ΔTSs. In step S4, the thermal sensation deterioration margins ΔTSa and ΔTSs for the two elements Ta and Ts are calculated from the above formulas (III) and (IV) using the set values and the temperature detection values Ta and Ts. Then, it is predicted whether or not the deterioration margins ΔTSa and ΔTSs of the thermal sensation can both be set to 0 by the conditioned air from the air conditioning unit 1A. That is, when the thermal load for each element is large, even if the air conditioning unit 1A is operated at the maximum output, the deterioration margin of the thermal sensation of one or both of the elements may not be zero. In step S4, it is determined whether or not all the deterioration margins ΔTSa and ΔTSs can be made zero.

Here, when the air conditioner is operated at the maximum output, the amount of deterioration of each element that can be improved per unit time is defined as Ea and Es. Ea is obtained by measuring room temperature Ta0 under a certain deterioration allowance ΔTSa, further measuring room temperature Ta1 one minute after the start of measurement, and substituting the measured values Ta0 and Ta1 into the following formula (VI). Can do. Further, Es measures the sheet temperature Ts0 under a certain deterioration allowance ΔTSs, further measures the sheet temperature Ts1 one minute after the start of measurement, and substitutes the measured values Ts0 and Ts1 into the following formula (VII). Can be obtained.
Ea = α (Ta1-Ta0) (VI)
Es = α (Ts1-Ts0) (VII)

  The characteristics of Ea and Es obtained in this way are stored in advance in the memory for each element Ta and Ts. An example of the characteristic Ea is shown in FIG. FIG. 6 shows characteristics obtained by measuring Ta0 and Ta1 under various load levels, and the controller 20 determines whether or not the deterioration margin ΔTSa can be made zero based on the characteristics shown in FIG.

  If it is determined in step S4 that all of the deterioration margins ΔTSa and ΔTSs can be reduced to 0, the process proceeds to step S5, and whether one of ΔTSa and ΔTSs is 0 or less, that is, either the room temperature Ta or the seat temperature Ts is comfortable. It is determined whether the temperature is lower than Ta * and Ts *. When the room temperature Ta is higher than Ta * and the sheet temperature Ts is higher than Ts *, Step S5 is denied and the process proceeds to Step S6. In step S6, the air conditioning operation is executed in the following selective cooling operation mode.

-Selective cooling operation mode-
An example of processing in the selective cooling operation mode is shown in FIG. In the selective cooling operation mode, first, in step S6A, the air conditioning unit 1A is cooled at the maximum output for the purpose of lowering the room temperature Ta (maximum output operation for Ta), and is cooled at the maximum output for the purpose of reducing the seat temperature Ts. In the case of driving (maximum output operation with respect to Ts), it is determined whether which can improve the deterioration of the whole body thermal sensation ΣΔTS (= ΔTSa + ΔTSs) more efficiently (in a short time). This determination is made based on a predetermined characteristic of Ea (FIG. 6) and characteristic of Es.

  If it is determined that the maximum output operation for Ta is more efficient, the process proceeds to step S6B, and the maximum output operation is performed for Ta. In this state, energy from the air conditioning unit 1A is output in order to improve the deterioration margin ΔTSa for the element Ta. For example, the fan 3 is rotated at the maximum rotation number, the air mix door 6 is rotated to the full cool position, the defrost door 9, the foot door 10, and the open / close door 11 are closed, and the vent door 8 is opened. As a result, the maximum amount of cooling air is blown into the vehicle interior from the vent outlet, and the vehicle interior is rapidly cooled.

  On the other hand, if it is determined in step S6A that the maximum output operation for Ts is more efficient, the process proceeds to step S6C, and the maximum output operation is performed for Ts. In this state, energy from the air conditioning unit 1A is output in order to improve the deterioration margin ΔTSs for the element Ts. For example, the fan 3 is rotated at the maximum rotation number, the air mix door 6 is rotated to the full cool position, the vent door 8, the defrost door 9 and the foot door 10 are closed, and the open / close door 11 is opened. As a result, the maximum amount of cooling air is blown from the sheet surface, and the sheet surface is rapidly cooled.

  If it is determined in step S5 of FIG. 3 that either Ta or Ts has become the comfortable temperature Ta * or Ts * or less, that is, any of the deterioration margins ΔTSa or ΔTSs has become 0 or less, the process proceeds to step S7. In step S7, the air conditioning operation is executed in the following distributed adjustment cooling operation mode. In the distributed adjustment cooling operation mode, the energy from the air conditioning unit 1A is distributed and outputted to each element in order to simultaneously improve the deterioration margins ΔTSa and ΔTSs for the two elements Ta and Ts.

-Distribution adjustment cooling operation mode-
An example of processing in the distribution adjustment cooling operation mode is shown in FIG. In the distribution adjustment cooling operation mode, first, in step S7A, it is determined whether or not the deterioration allowance ΔTSs for the element Ts is equal to or less than 0. If the determination is negative, the process proceeds to step S7C. In this case, only the deterioration margin ΔTSa for the element Ta is 0 or less, and in step S7C, a part of the energy from the air conditioning unit 1A is regarded as the minimum necessary energy that maintains ΔTSa = 0. Output is performed for Ta, and the remainder is output for element Ts to lower the sheet temperature Ts.

  Specifically, the fan 3 is rotated at the maximum number of rotations, and the air mix door 6 is rotated to the full cool position, and the rotation of the doors 8 to 11 is controlled to distribute air from the air outlet and the seat surface. Adjust the ratio. That is, by controlling the rotation of the doors 8 to 10, the output of the element Ta (the amount of air blown from the outlet) is adjusted, and by controlling the rotation of the door 11, the output of the element Ts (from the seat surface). Adjust the air flow. As a result, only the necessary minimum air volume that maintains ΔTSa = 0 is blown into the passenger compartment, and the rest is blown from the seat surface. Note that the air distribution ratio may be adjusted in a state where the rotational speed of the fan 3 is set lower than the maximum rotational speed and the air mix door 6 is set at a position other than the full cool position.

  Here, the output necessary for maintaining ΔTSa = 0 (the output necessary for setting Ea = 0) is as shown in FIG. 7, for example, and varies depending on the load level. This characteristic is stored in advance for each element, and based on this characteristic, the controller 20 determines how much output is necessary to maintain ΔTSa = 0 (how to control the air distribution ratio). presume.

  If ΔTSs is determined to be 0 or less in step S7A, the process proceeds to step S7B, and it is determined whether ΔTSa is 0 or less. If step S7B is negative, the process proceeds to step S7D. In this case, only the deterioration allowance ΔTSs for the element Ts is 0 or less, and in step S7D, a part of the energy from the air conditioning unit 1A is regarded as the minimum necessary energy that maintains ΔTSs = 0. Output for Ts and the rest for element Ts to lower room temperature Ta.

  For example, the fan 3 is rotated at the maximum number of rotations, and the air mix door 6 is rotated to the full cool position, and the rotation of the doors 8 to 11 is controlled to adjust the air distribution ratio from the air outlet and the seat surface. To do. As a result, only the minimum necessary amount of air that maintains ΔTSs = 0 from the seat surface is blown, and the remaining air is blown from the outlet into the passenger compartment. In addition, you may adjust the air distribution ratio in the state which made the rotation speed of the fan 3 lower than the maximum rotation speed, and made the air mix door 6 other than a full cool position.

  If step S7B is positive, the process proceeds to step S7E. In this case, both the deterioration margins ΔTSa and ΔTSs of the thermal sensation are 0, and in step S7E, the minimum necessary energy that maintains ΔTSa for the element Ta is output, and ΔTSs is maintained for the element Ts. Outputs the minimum necessary energy. For example, the fan air volume (fan rotation speed), the air conditioning air temperature (the opening degree of the air mix door 6), and the air distribution ratio from the air outlet and the seat surface (the rotation of the doors 8 to 11) so that the energy consumption is minimized. And control each. Thereby, each element can be controlled to the comfortable temperature Ta *, Ts *, and not only the occupant's whole body thermal sensation and the thermal sensation of each part become comfortable, but also the fuel consumption is improved. In addition, after controlling a fan air volume (fan rotation speed), air-conditioning wind temperature (opening of the air mix door 6), and blower outlet mode (rotation of the doors 8-10) according to target air mix door opening, The air distribution ratio (rotation of the doors 8 to 11) may be adjusted so that both ΔTSa and ΔTSs are zero.

  If it is determined in step S4 in FIG. 3 that one or both of the deterioration allowances ΔTSa and ΔTSs cannot be set to 0, the process proceeds to step S8. In step S8, the air conditioning operation is executed in the following modified cooling operation mode.

-Modified cooling operation mode-
An example of processing in the modified cooling operation mode is shown in FIG. In the modified cooling operation mode, first, in step S8A, it is determined whether or not the deterioration allowance ΔTSs for the seat temperature Ts can be made zero. If step S8A is affirmed, that is, if it is determined that only the deterioration allowance ΔTSa for room temperature Ta cannot be set to 0, the process proceeds to step S8B. In step S8B, it is determined whether or not ΔTSs has become 0. If the determination is negative, the process proceeds to step S8C, and the maximum output operation is performed per Ts as in the process of step S6C described above. As a result, the deterioration margin ΔTSs for the element Ts approaches zero. On the other hand, when step S8B is affirmed, the process proceeds to step S8D, and the output (air distribution ratio, etc.) of the air conditioning unit 1A is adjusted so that the sum ΣΔTS (= ΔTSa + ΔTSs) of the deterioration allowance of each element becomes zero. In this case, since ΔTSa is larger than 0, ΔTSs is made negative and ΣΔTS is made 0. This makes the occupant's whole body thermal feeling comfortable.

  On the other hand, if step S8A is negative, the process proceeds to step S8E to determine whether or not the deterioration allowance ΔTSa for the element Ta can be made zero. If step S8E is affirmed, that is, if it is determined that it is impossible to set only the deterioration allowance ΔTSs for the sheet temperature Ts to 0, the process proceeds to step S8F. In step S8F, it is determined whether or not ΔTSa has become 0. If the determination is negative, the process proceeds to step S8G, and the maximum output operation is performed per Ta as in the above-described process (step S6B). As a result, the deterioration margin ΔTSa for the element Ta approaches zero. On the other hand, if step S8F is affirmed, the process proceeds to step S8H, and the output of the air conditioning unit 1A is adjusted so that the sum ΣΔTS of the deterioration allowance of each element becomes zero. In this case, since ΔTSs is larger than 0, ΔTSa is set to minus and ΣΔTS is set to 0. This makes the occupant's whole body thermal feeling comfortable.

  If step S8E is negative, that is, if it is determined that both the thermal sensation deterioration allowances ΔTSs and ΔTSa cannot be zero, the process proceeds to step S8I. In step S81, the operation is performed by adjusting the output of the air conditioning unit 1A so that the sum ΣΔTS of the deterioration margin of each element is minimized. As a result, the occupant's whole body thermal sensation is improved to the maximum.

  The processing when the air-conditioning operation is determined to be cooling in step S3 has been described above. On the other hand, if the air-conditioning operation is determined to be heating, the cost of worsening the thermal feeling becomes negative (feels cold). Therefore, in step S10 in FIG. 3, it is determined whether or not ΔTSa and ΔTSs are 0 or more, and in steps S9 to S13, processing corresponding to steps S4 to S8 is performed. In this case, the air mix door 6 is turned to the hot side and the air outlet door mode is changed to a mode suitable for heating (for example, a foot mode). Since the control is the same as described above, the description of steps S9 to S13 is omitted here.

A characteristic operation of the temperature control apparatus according to the first embodiment will be described.
FIG. 11 is a time chart showing an example of changes in the room temperature Ta and the sheet temperature Ts. In the figure, the solid line is the characteristic when the temperature control is performed for the two elements Ta and Ts by the air conditioning unit 1A, and the dotted line is the characteristic when the temperature control is performed only for one element Ta. The room temperature Ta and the sheet temperature Ts at the start of control (time point t0) are Ta0 and Ts0, respectively. In this case, in the initial state, the temperatures Ta and Ts are both higher than the comfortable temperatures Ta * and Ts *, the deterioration margins ΔTSa and ΔTSs of each element are each greater than 0, and the occupant feels heat throughout the body. For this reason, the air conditioning unit 1A is operated in the selective cooling operation mode (step S6).

  In the selective cooling operation mode, the cooling operation is performed at the maximum output with respect to either Ta or Ts so that the sum ΣΔTS of the deterioration margin can be efficiently improved. In the example of FIG. 11, maximum output operation is performed for Ta (step S6B). Thus, all the cooling air from the air conditioning unit 1A is blown into the vehicle interior from the vent outlet. For this reason, as shown in the drawing, the room temperature Ta rapidly decreases, and the air conditioning comfort of the passenger can be improved in a short time. At this time, the sheet temperature Ts also decreases as the room temperature Ta decreases.

  When the deterioration allowance ΔTSa for the room temperature TSa becomes 0 or less at the time t1, the process proceeds to the distribution adjustment cooling operation mode (step S7). As a result, only the conditioned air that maintains ΔTSa = 0 is blown from the blower outlet, and the remainder is blown from the sheet surface (step S7C). As a result, the seat temperature Ts decreases as shown by the solid line, and the seat temperature Ts approaches the comfortable temperature Ts *. Further, the room temperature Ta is maintained at the comfortable temperature Ta *.

  When ΔTSs = 0 at time t2, the air conditioning unit 1A is operated with the minimum necessary outputs that maintain the room temperature Ta and the seat temperature Ts at the comfortable temperatures Ta * and Ts *, respectively (step S7E). As a result, the whole body thermal sensation and the thermal sensation of each part for the occupant are all comfortable and a good air-conditioned space can be obtained. On the other hand, when the air conditioning operation is performed only on the element Ta to improve the deterioration of the whole body thermal sensation (when ΣΔTS is set to 0), the seat temperature Ts is higher than the comfortable temperature Ts * as shown by the dotted line. The room temperature Ta becomes lower than the comfortable temperature Ta *. Therefore, even if the occupant's whole body thermal sensation is satisfied, the thermal sensation for each part is not satisfied, and sufficient air conditioning comfort cannot be obtained.

  On the other hand, if either or both of ΔTSa and ΔTSs cannot be set to 0 even if the air conditioning unit 1A is operated due to a high heat load such as a high outside air temperature, the modified cooling operation mode is performed (step S8). . For example, when only the deterioration allowance ΔTSa of the room temperature Ta can be reduced to 0, the maximum output operation is performed for Ta to set ΔTSa to 0, and then the output is adjusted so that the sum of deterioration allowance ΣΔTS becomes 0 (step S8D). ). Thereby, a comfortable whole body thermal sensation can be obtained early. If neither ΔTSa nor ΔTSs can be reduced to 0, the air conditioning unit 1A is operated with the output adjusted so that the sum ΣΔTS of the deterioration margin is minimized (step S8I). As a result, the passenger's air conditioning comfort can be improved to the maximum.

According to 1st Embodiment, there can exist the following effects.
(1) Since the air conditioning unit 1A is controlled based on the deterioration margin ΔTSa, ΔTSs of the thermal sensation of the two elements Ta, Ts, two elements Ta, Ts having different degrees of comfort on the passenger are evaluated by the same index. Thus, the air conditioning can be controlled, and an optimum air conditioning environment can be obtained.
(2) Constants α, β, Ta *, Ts * necessary for obtaining the deterioration margins ΔTSa, ΔTSs of each element are set in advance, and the deterioration margins are calculated using the detected values Ta, Ts of the room temperature and the sheet temperature. Therefore, it is not necessary for the occupant to manually set the sensation level, and air conditioning comfort can be easily increased.
(3) Since the temperature satisfying the thermal sensation prediction formula (I) and the thermal sensation prediction formula of each part (back, chest, etc.) is set as the comfortable temperature Ta *, Ts *, the air conditioning comfort is uniform throughout the body. Sex is obtained. In other words, if only the whole body thermal sensation is made comfortable, even though the whole body is comfortable on average, there may be local discomfort in each part, but in this embodiment, not only the whole body but also each part Uniformly comfortable.

(4) Since the conditioned air from the air conditioning unit 1A is blown from the outlet and the seat surface, the air conditioning control for the room temperature Ta and the air conditioning control for the seat temperature Ts are performed using a single air conditioner. Can reduce the cost.
(5) Since air conditioning control is performed so that the deterioration margins ΔTSa and ΔTSs of the thermal sensation of a plurality of elements are all 0, the temperatures Ta and Ts of each element can be controlled to the comfortable temperatures Ta * and Ts *, Uniform comfort can be obtained throughout the body, including the thermal sensation of each part. In this regard, for example, when air-conditioning control is performed so that only one element Ta is set to the comfortable temperature Ta *, the seat temperature Ts is not necessarily the comfortable temperature Ts * even if the Ta is controlled to the comfortable temperature Ta *, and the whole body is uniform It is difficult to obtain comfortable comfort.
(6) After the deterioration margins ΔTSa and ΔTSs all become 0, the air conditioning unit 1A is controlled with the minimum output necessary to maintain the state of each element, so that the fuel consumption is also improved.
(7) When it is not possible to set all of the thermal deterioration sensations ΔTSa and ΔTSs of each element to 0, air conditioning control is performed so that the sum ΣΔTS of the degradation erasures becomes 0, thereby improving the deterioration of the whole body thermal sensation. can do.
(8) When the deterioration allowances ΔTSa, ΔTSs of each element are larger than 0 (less than 0 in heating operation), the maximum output operation is performed for elements that can efficiently improve the deterioration allowance. Discomfort can be resolved efficiently in a short time.

-Second Embodiment-
A second embodiment of the vehicle interior temperature control apparatus according to the present invention will be described with reference to FIGS.
In the second embodiment, two temperature control devices (for example, the air conditioning units 1B and 1C) independently control two elements (for example, the cabin temperature and the seat temperature) that affect the passenger comfort. It is. That is, the air conditioning unit 1B is used as a room temperature control device, and the air conditioning unit 1C is used as a seat temperature control device.

  FIG. 12 is a diagram showing a schematic configuration of a vehicle interior temperature control apparatus according to the second embodiment. In the figure, (a) is an air-conditioning unit 1B that blows conditioned air into the passenger compartment, and the same reference numerals are given to portions common to the above-described air-conditioning unit 1A. Unlike the air conditioning unit 1A, the air conditioning unit 1B is configured to blow conditioned air only from the air outlet. For this reason, the opening / closing door 11 is omitted from the air conditioning unit 1B.

  In the figure, (b) is a seat 15 provided with an air conditioning unit 1C. A fan 51 and a cold / hot air generator 52 that heats or cools the air blown from the fan 51 are disposed below the seat cushion 15a. The cool / warm air generating device 52 includes a Peltier element 52a, and changes the direction of the current flowing through the Peltier element 52a to heat or cool the air from the fan 51 to generate warm air or cool air. The air that has passed through the cold / hot air generating device 52 is blown out from the sheet surface via the air passage 53 in the sheet.

  FIG. 13 is a block diagram showing a control configuration of the temperature control apparatus according to the second embodiment. In the figure, the same parts as those in FIG. The sensor group 30 and the operation panel 40 are connected to the controller 50 as in FIG. The controller 50 executes predetermined processing based on the input signals from these, and outputs control signals to the blower motor 2B, the air mix door driving actuator 21B, and the outlet door driving actuator 22B of the air conditioning unit 1B, respectively, and air conditioning. A control signal is output to the Peltier element 52a of the unit 1C. The memory stores in advance the characteristics of Ea and Es (for example, characteristics as shown in FIG. 6) when the air conditioning units 1B and 1C are respectively operated at the maximum output.

  FIG. 14 is a flowchart illustrating an example of processing executed by the controller 50. Also in the second embodiment, the deterioration margins ΔTSa and ΔTSs of each element are calculated as in the first embodiment, and air conditioning control is performed based on the deterioration margins. In addition, the same code | symbol is attached | subjected to the location same as FIG. 3, and the difference is mainly demonstrated below.

  When it is determined in step S3 that the cooling operation is performed, and in step S4, it is determined that there is an element that cannot reduce the thermal deterioration deterioration margins ΔTSa and ΔTSs to 0, the process proceeds to step S51. In step S51, it is determined whether or not the sum ΣΔTS of the deterioration margin is not more than a predetermined value (for example, not more than 1). This is a determination of whether or not the discomfort given to the whole body is below a certain level, that is, whether or not the large discomfort has been removed. If step S51 is negative, the process proceeds to step S52. In this case, since the occupant's discomfort is large, the air conditioning operation is executed in the maximum cooling operation mode as described below in step S52.

-Maximum cooling operation mode-
An example of processing in the maximum cooling operation mode is shown in FIG. In the maximum cooling operation mode, first, in step S52A, it is determined whether or not ΔTSa is smaller than 0, that is, whether or not the room temperature Ta is lower than the comfortable temperature Ta *. If step S52A is negative, the process proceeds to step S52B, and the air conditioning unit 1B is cooled with the maximum output. For example, the fan 3 is rotated at the maximum rotation number, the air mix door 6 is rotated to the full cool position, the defrost door 9 and the foot door 10 are closed, and the vent door 8 is opened. Thereby, cooling air is blown into the vehicle interior from the vent outlet, and the vehicle interior is rapidly cooled. On the other hand, if step S52A is affirmed, the process proceeds to step S52C, and the cooling operation of the air conditioning unit 1B is stopped.

  In step S52D, it is determined whether or not ΔTSs is smaller than 0, that is, whether or not the seat temperature Ts is lower than the comfortable temperature Ts *. When step S52D is denied, it progresses to step S52E, and air-conditioning unit 1C is air-cooled by the maximum output. For example, the fan 51 is rotated at the maximum rotation speed, and the cooling effect by the Peltier element 52a is maximized. Thereby, cooling air is blown from the sheet surface, and the sheet surface is rapidly cooled. On the other hand, if step S52D is affirmed, the process proceeds to step S52F, and the cooling operation of the air conditioning unit 1C is stopped.

  The above is the processing in the maximum cooling operation mode. On the other hand, if it is determined in step S51 of FIG. 14 that the sum of the deterioration margins is 1 or less, the process proceeds to step S53. In this case, since the great discomfort of the occupant is eliminated, the air conditioning operation is performed in the energy saving cooling operation mode in consideration of energy saving as follows.

-Energy-saving cooling operation mode-
An example of processing in the energy-saving cooling operation mode is shown in FIG. In the energy saving cooling operation mode, first, in step S53A, it is determined whether the deterioration allowance ΔTSa for the element Ta is smaller than 0, and in step S53B, it is determined whether the deterioration allowance ΔTSs for the element Ts is smaller than 0. If both step S53A and step S53B are negative, the process proceeds to step S53C, which is more efficient in the case where the air conditioning unit 1B is cooled at the maximum output and the case where the air conditioning unit 1C is cooled at the maximum output. Whether or not the deterioration allowance ΔTS can be reduced to 0 (in a short time) is determined using predetermined characteristics of Ea and Es.

  It is more efficient to operate the air conditioning unit 1C at the maximum output, that is, it takes less time to operate the air conditioning unit 1C at the maximum output and set ΔTSs to 0 than to set the air conditioning unit 1B to the maximum output operation and set ΔTSa to 0. If it is determined, the process proceeds to step S53D. In step S53D, it is determined whether or not the deterioration margins ΔTSa and ΔTSs of all elements have become 0. If the determination is negative, the process proceeds to step S53E. In step S53E, the air conditioning unit 1B is cooled at the maximum output to bring ΔTSa close to 0, and the output of the air conditioning unit 1C (drive the fan 51 and energize the Peltier element 52a) so that ΔTSa and ΔTSs become 0 simultaneously. Adjust.

  If it is determined in step S53D that both ΔTSa and ΔTSs have become 0, the process proceeds to step 53F. In step S53F, the output of the air conditioning unit 1B (the rotation speed of the fan 3, the opening degree of the air mix door 6, the opening and closing of the doors 8 to 10) and the air conditioning unit 1C are maintained so that the deterioration margins ΔTSa and ΔTSs are maintained at 0. Adjust each output.

  On the other hand, if it is determined in step S53C that it is more efficient to perform the maximum output operation of the air conditioning unit 1B, the process proceeds to step S53G. In step S53G, it is determined whether or not the deterioration margins ΔTSa and ΔTSs of all elements have become 0. If the determination is negative, the process proceeds to step S53H. In step S53H, the air conditioning unit 1C is cooled at the maximum output to bring ΔTSs closer to 0, and the output of the air conditioning unit 1B is adjusted so that ΔTSa and ΔTSs become 0 simultaneously. If it is determined in step S53G that both ΔTSa and ΔTSs have become 0, the process proceeds to step 53I, and the output of the air conditioning unit 1B and the output of the air conditioning unit 1C are adjusted so that ΔTSa and ΔTSs are maintained at 0.

  On the other hand, if it is determined in step S53A that the deterioration allowance ΔTSa for the element Ta is smaller than 0, the process proceeds to step S53J. In step S53J, it is determined whether or not the sum of deterioration margins ΣΔTS is zero. If step S53J is denied, the process proceeds to step S53K to stop the cooling operation of the air conditioning unit 1B and to cool the air conditioning unit 1C with the maximum output. As a result, ΣΔTS approaches zero. If it is determined in step S53J that ΣΔTS = 0, the process proceeds to step 53L, and the output of the air conditioning unit 1C is adjusted so as to maintain ΣΔTS = 0.

  If it is determined in step S53B that the deterioration allowance ΔTSs for the element Ts is smaller than 0, the process proceeds to step S53M. In step S53M, it is determined whether or not the sum of deterioration margins ΣΔTS is zero. If step S53M is negative, the process proceeds to step S53N, where the cooling operation of the air conditioning unit 1C is stopped and the air conditioning unit 1B is cooled at the maximum output. If it is determined in step S53M that ΣΔTS = 0, the process proceeds to step 53P, and the output of the air conditioning unit 1B is adjusted so as to maintain ΣΔTS = 0.

  The above is the processing in the energy saving cooling operation mode. On the other hand, if it is determined in step S4 in FIG. 14 that the deterioration margins ΔTSa and ΔTSs of all elements cannot be reduced to 0, the process proceeds to step S54. In this case, the air conditioning operation is performed in the modified cooling operation mode as follows.

-Modified cooling operation mode-
An example of processing in the modified cooling operation mode is shown in FIG. In the modified cooling operation mode, first, in step S54A, it is determined whether or not the deterioration allowance ΔTSa for the element Ta can be zero, and if not, the process proceeds to step S54B, and it is determined whether or not the deterioration allowance sum ΣΔTS is zero. To do. Before ΣΔTS becomes 0, step S54B is denied and the process proceeds to step S54C, where both the air conditioning units 1B and 1C are cooled with the maximum output. As a result, the room temperature Ta and the sheet temperature Ts are lowered early. When ΣΔTS becomes 0, step S54B is affirmed and the process proceeds to step S54D. In step S54D, the output of the air conditioning unit 1C is adjusted so that ΣΔTS becomes 0 while the air conditioning unit 1B is operated at the maximum output.

  On the other hand, if step S54A is affirmed, the process proceeds to step S54E. In step S54E, it is determined whether or not the deterioration allowance ΔTSs for the element Ts can be set to 0. If the determination is negative, the process proceeds to step S54F, and it is determined whether or not the deterioration allowance sum ΣΔTS is 0. Before ΣΔTS becomes 0, step S54F is denied and the process proceeds to step S54G, where both the air conditioning units 1B and 1C are cooled with the maximum output. When ΣΔTS becomes 0, step S54F is affirmed and the process proceeds to step S54H. In step S54H, the output of the air conditioning unit 1B is adjusted so that ΣΔTS becomes 0 while the air conditioning unit 1C is operated at the maximum output.

  The processing when the air-conditioning operation is determined to be cooling in step S3 has been described above. On the other hand, if the air-conditioning operation is determined to be heating, the cost of worsening the thermal feeling becomes negative (feels cold). Therefore, in step S55 of FIG. 14, it is determined whether or not ΣΔTS is −1 or more, and in steps S56 to S58, processing corresponding to steps S52 to S54 is performed. In this case, the air mix door 6 is turned to the hot side, the air outlet mode is changed to a mode suitable for heating (for example, the foot mode), and a current opposite to that during cooling is applied to the Peltier element 52a. Although the point in which the Peltier element 52a functions as a heating source is different from the control during the cooling operation, the other basic controls are the same as those described above, and thus the description of steps S55 to S58 is omitted here. .

A characteristic operation of the temperature control apparatus according to the second embodiment will be described.
When the room temperature Ta and the seat temperature Ts are both higher than the comfortable temperatures Ta * and Ts * and the sum of the deterioration margin ΣΔTS is larger than 1, the controller 50 operates the air conditioning units 1B and 1C in the maximum cooling operation mode ( Step S52). That is, the air conditioning units 1B and 1C are each cooled with a maximum output. As a result, low-temperature air is blown at the maximum air volume from the vent outlet and the seat surface, and the air conditioning comfort of the occupant can be improved early.

  When the comfort is improved to some extent by the maximum cooling operation mode (ΣΔTS ≦ 1), the mode shifts to the energy saving cooling operation mode (step S53). In the energy-saving cooling operation mode, it is determined which of ΔTSa and ΔTSs can be set to 0 earlier. If ΔTSa can be set to 0 earlier, the air conditioning unit 1B operates while the air conditioning unit 1C is operated at the maximum output. An operation with a reduced output is performed (step S53H). In this way, in the state where the discomfort is below a certain level, the air conditioning unit 1C corresponding to the element Ts that takes longer to improve the deterioration margin is operated at the maximum output and the output of the other air conditioning unit 1B is suppressed. The deterioration margins ΔTSa and ΔTSs of each element can be reduced to 0 as soon as possible, energy saving can be achieved, and fuel consumption can be improved.

  When the deterioration margins ΔTSa and ΔTSs of each element are all zero, the maximum output operation of the air conditioning unit 1C is stopped, and the air conditioning units 1B, 1B, 1B, 1B, The output of 1C is adjusted (step S53I). Thus, the occupant feels comfortable not only in the average thermal sensation of the whole body but also in the thermal sensation of each part, and can obtain a favorable air conditioning environment. Further, since the state of ΔTS = 0 is maintained with the minimum necessary output, the fuel consumption is also improved.

According to 2nd Embodiment, there can exist the following effects.
(1) Since the air conditioning units 1B and 1C are controlled on the basis of the deterioration of the thermal sensation ΔTSa and ΔTSs of the two elements Ta and Ts, the two elements Ta and Ts having different degrees of comfort on the occupant are the same index. It is possible to evaluate and control the air conditioning, and an optimal air conditioning environment can be obtained.
(2) Constants α, β, Ta *, Ts * necessary for obtaining the deterioration margins ΔTSa, ΔTSs of each element are set in advance, and the deterioration margins are calculated using the detected values Ta, Ts of the room temperature and the sheet temperature. Therefore, it is not necessary for the occupant to manually set the sensation level, and air conditioning comfort can be easily increased.

(3) The air conditioner unit 1B improves the deterioration rate ΔTSa of the element Ta, and the air conditioning unit 1C improves the deterioration amount ΔTSs of the element Ts. In other words, the deterioration rates ΔTSa and ΔTSs of each element are each independently provided. As a result of improvement, a comfortable air-conditioning environment with no deterioration margin is easily obtained.
(4) Since the temperature of the air blown from the air conditioning units 1B and 1C can be controlled to different values, the elements Ta and Ts can be easily set to optimum values even in a situation where the room temperature is very hot but the seat is slightly hot. Can be controlled.
(5) Since the air conditioning control is performed so that the deterioration margins ΔTSa and ΔTSs of the thermal sensation of each element are all zero, uniform comfort throughout the body including the thermal sensation of each part can be obtained.
(6) After the deterioration margins ΔTSa and ΔTSs all become 0, the air conditioning units 1B and 1C are controlled with the minimum output necessary to maintain the state of each element, so that the fuel consumption is also improved.
(7) When the deterioration margins ΔTSa and ΔTSs of the thermal sensation of each element cannot be all zero, the air conditioning control is performed so that the sum ΣΔTS of the deterioration margins becomes zero (FIG. 17). Can improve the deterioration.

(8) The air conditioning units 1B and 1C are each operated at the maximum output until the discomfort is removed to some extent at the start of the air conditioning (maximum output operation mode), and then the deterioration margins ΔTSa and ΔTSs of all elements are set to 0 at the same time. Therefore, one air conditioning unit 1B is operated at the maximum output, and the other air conditioning unit 1C is operated with the output reduced (energy saving cooling operation mode), so that the time required to reach the comfortable temperatures Ta * and Ts * is minimized. In addition, fuel efficiency can be improved.
(9) When the deterioration margin ΔTSa is smaller than 0 in the maximum output operation mode, the cooling operation of the air conditioning unit 1B corresponding to the element Ta is stopped, and the air conditioning unit 1C corresponding to the other element Ts is operated at the maximum output. Therefore, discomfort caused by excessive cooling of the elements Ta and Ts can be eliminated.

-Third embodiment-
A third embodiment of the vehicle interior temperature control apparatus according to the present invention will be described with reference to FIGS.
In the third embodiment, one temperature control device (air conditioning unit 1A) controls two elements (vehicle interior temperature and seat temperature) that affect passenger comfort, and one of the elements (vehicle Another temperature control device (air conditioning unit 1B) controls the room temperature. That is, in the third embodiment, a pair of air conditioning units 1A and 1B are installed in parallel, the air conditioning unit 1A is used as a room temperature control device and a seat temperature control device, and the air conditioning unit 1B is used as a room temperature control device. In addition, the structure of air-conditioning unit 1A, 1B is the same as that of what was mentioned above, and abbreviate | omits description.

  FIG. 18 is a block diagram showing a control configuration of the temperature control apparatus according to the third embodiment. In the figure, the same parts as those in FIGS. Similar to FIGS. 2 and 13, the sensor group 30 and the operation panel 40 are connected to the controller 60. The controller 60 executes predetermined processing based on the input signals from these, and outputs control signals to the blower motor 2A, the air mix door driving actuator 21A, and the outlet door driving actuator 22A of the air conditioning unit 1A, and the air conditioning unit. Control signals are output to the 1B blower motor 2B, the air mix door driving actuator 21B, and the outlet door driving actuator 22B, respectively.

  Processing performed by the controller 60 will be described. Note that the processing in the controller 60 according to the third embodiment differs from the processing in the controller 50 according to the second embodiment in the processing in each operation mode (step S52 to step S54, step S56 to step S58). This point will be described below.

-Maximum cooling operation mode-
An example of processing in the maximum cooling operation mode is shown in FIG. In the maximum cooling operation mode, first, in step S520A, it is determined whether ΔTSa is smaller than 0, that is, whether Ta is lower than the comfortable temperature Ta *. If step S520A is negative, the process proceeds to step S520B, and it is determined whether ΔTSs is smaller than 0, that is, whether Ts is lower than the comfortable temperature Ts *. If step S520B is denied, the process proceeds to step S520C, and when the air conditioning unit A is operated at maximum output with respect to the element Ta and the air conditioning unit 1B is operated at maximum output (case 1), the air conditioning unit 1A is maximized with respect to the element Ts. In the case where the output operation is performed and the air conditioning unit 1B is operated at the maximum output (Case 2), it is determined which of the two can more efficiently improve the sum ΣΔTS of the deterioration margin. This determination can be made based on predetermined characteristics (for example, characteristics as shown in FIG. 6) of Ea and Es of the air conditioning unit 1A and characteristics of Ea of the air conditioning unit 1B.

  If it is determined that the case 1 is more efficient, the process proceeds to step S520D, and it is determined whether or not the deterioration margin ΔTSa for the room temperature Ta has become zero. If step S520D is denied, the process proceeds to step S520E, and the air conditioning unit A is cooled with the maximum output to the element Ta so as to efficiently improve ΣΔTS, and the air conditioning unit 1B is cooled with the maximum output. When ΔTSa becomes 0 by the maximum output operation of the air conditioning units 1A and 1B, the process proceeds to step S520F. In step S520F, the minimum energy that maintains ΔTSa = 0 is output from the air conditioning units 1A and 1B to the element Ta, and the remaining energy of the air conditioning unit 1A is output to the element Ts. , Adjust the output of 1B cooling operation. In this case, when ΔTSa = 0 can be maintained only by the output from the air conditioning unit 1B, the energy from the air conditioning unit 1A is not output to the element Ta but is output only to the element Ts. This improves ΔTSs while keeping ΔTSa at 0.

  On the other hand, if it is determined in step S520C that the case 2 is more efficient, the process proceeds to step S520G, and it is determined whether or not the deterioration margin ΔTSa for the element Ta has become zero. If step S520G is negative, the process proceeds to step S520H, and the air conditioning unit 1B is cooled at the maximum output so as to efficiently improve ΣΔTS. When ΔTSa is determined to be 0 in step S520G, the process proceeds to step S520I, and the output of the cooling operation of the air conditioning unit 1B is adjusted so as to maintain ΔTSa = 0.

  In step S520J, it is determined whether or not the deterioration margin ΔTSs for the element Ts has become zero. If step S520J is negative, the process proceeds to step S520K, and the air conditioning unit 1A is cooled with the maximum output for the element Ts so as to efficiently improve ΣΔTS. When ΔTSs is determined to be 0 in step S520J, the process proceeds to step S520L, and the minimum energy is output to the element Ts so as to maintain ΔTSs = 0, and the remaining energy is output to the element Ta. The output of the cooling operation of the air conditioning unit 1A is adjusted.

  If ΔTSa <0 is determined in step S520A, the process proceeds to step S520M. In step S520M, in order to prevent a decrease in the room temperature Ta, the air conditioning unit 1A is operated at the maximum output with respect to the element Ts, and the cooling operation of the air conditioning unit 1B is stopped. If it is determined in step S520B that ΔTSs <0, the process proceeds to step S520N. In step S520N, in order to prevent a decrease in the seat temperature Ts, the air conditioning unit 1A is operated for maximum output with respect to the element Ta, and the air conditioning unit 1B is operated for maximum output.

-Energy-saving cooling operation mode-
Next, an example of processing in the energy-saving cooling operation mode is shown in FIG. In the energy saving cooling operation mode, first, in step S530A, it is determined whether or not ΔTSa is smaller than zero. If step S530A is negative, the process proceeds to step S530B to determine whether ΔTSs is smaller than zero. If step S530B is denied, the process proceeds to step S530C, and when ΔTSa is set to 0 and ΔTSs is set to 0 when the air conditioning unit 1A is operated at the maximum output for the element Ts and the air conditioning unit 1B is operated at the maximum output for the element Ta. It is determined which is more efficient (it takes less time).

  If it is determined that it takes less time to set ΔTSa to 0, the process proceeds to step S530D to determine whether ΔTSa and ΔTSs are 0 or not. If step S530D is negative, the process proceeds to step S530E, where the air conditioning unit 1A is operated at maximum output with respect to the element Ts, and the output of the air conditioning unit 1B with respect to the element Ta is adjusted so that ΔTSs and ΔTSa become 0 simultaneously. If it is determined in step S530D that ΔTSa and ΔTSs have become 0, the process proceeds to step S530F, and the cooling operation outputs of the air conditioning units 1A and 1B are set so as to maintain the state of ΔTSa = 0 and ΔTSs = 0 with the minimum output. Adjust.

  On the other hand, if it is determined in step S530C that it takes less time to set ΔTSs to 0, the process proceeds to step S530G to determine whether ΔTSa and ΔTSs are 0. If step S530G is negative, the process proceeds to step S530H, where the air conditioning unit 1B is operated for maximum output with respect to the element Ta, and the outputs of the air conditioning unit 1A with respect to the element Ta and the element Ts are adjusted so that ΔTSs and ΔTSa become 0 simultaneously. In this case, ΔTSa and ΔTSs can be quickly reduced to 0 by outputting a part of the energy to the element Ta in the state where the air conditioning unit 1A is operated at the maximum output. If it is determined in step S530G that ΔTSa and ΔTSs have become 0, the process proceeds to step S530I, and the cooling operation outputs of the air conditioning units 1A and 1B are set so as to maintain the state of ΔTSa = 0 and ΔTSs = 0 with the minimum output. Adjust.

  If it is determined in step S530A that ΔTSa is smaller than 0, the process proceeds to step S530J. In step S530J, it is determined whether or not the deterioration margin sum ΣΔTS is 0. If negative, the process proceeds to step S530K. In step S530K, the air conditioning unit 1A is maximally output with respect to the element Ts so that ΣΔTS becomes 0, and the cooling operation output of the air conditioning unit 1B is stopped. If ΣΔTS is determined to be 0 in step S530J, the process proceeds to step S530L, and the output of the air conditioning unit 1A with respect to the element Ts is adjusted so that ΣΔTS = 0 is maintained with the minimum output while the output of the air conditioning unit 1B is stopped. .

  If it is determined in step S530B that ΔTSs is smaller than 0, the process proceeds to step S530M. In step S530M, it is determined whether the sum ΣΔTS of the deterioration margin is 0. If the result is negative, the process proceeds to step S530N. In step S530N, the air conditioning unit 1A is operated for maximum output with respect to the element Ta so that ΣΔTS becomes 0, and the air conditioning unit 1B is operated for maximum output. If ΣΔTS is determined to be 0 in step S530M, the process proceeds to step S530P, and the output to the element Ta of the air conditioning units 1A, 1B is adjusted so as to maintain ΣΔTS = 0 with the minimum output.

-Modified cooling operation mode-
Next, FIG. 21 shows an example of processing in the modified cooling operation mode. In the modified cooling operation mode, first, in step S540A, it is determined whether or not ΔTSa can be set to 0 when the air conditioning units 1A and 1B are operated at the maximum output with respect to the element Ta. move on. In step S540B, it is determined whether or not ΔTSs can be set to 0 when the air conditioning unit 1A is operated at the maximum output with respect to the element Ts.

  If step S540B is negative, the process proceeds to step S540C, and it is determined whether the deterioration margin sum ΣΔTS is zero. If step S540C is negative, the process proceeds to step S540D, and the air conditioning unit 1A is operated at maximum output with respect to the element Ts so that ΣΔTS becomes 0, and the air conditioning unit 1B is operated at maximum output with respect to the element Ta. If ΣΔTS is determined to be 0 in step S540C, the process proceeds to step S540E, and the air conditioner unit 1A outputs the output to the element Ta of the air conditioner unit 1B so as to maintain the state of ΣΔTS = 0 while the maximum output operation is performed with respect to the element Ts. Adjust.

  On the other hand, if it is determined in step S540A that ΔTSa cannot be set to 0 when the air conditioning units A and B are operated at the maximum output with respect to the element Ta, the process proceeds to step S540F. In step S540F, it is determined whether or not the sum of deterioration margins ΣΔTS is zero. If step S540F is denied, the process proceeds to step S540G, and the air conditioning unit 1A is operated at maximum output with respect to the element Ts so that ΣΔTS becomes 0, and the air conditioning unit 1B is operated at maximum output with respect to the element Ta. If ΣΔTS is determined to be 0 in step S540F, the process proceeds to step S540H, and the output for the element Ts of the air conditioning unit 1A is adjusted so as to maintain the state of ΣΔTS = 0 while the air conditioning unit 1B is operated at the maximum output.

A characteristic operation of the temperature control apparatus according to the third embodiment will be described.
When the room temperature Ta and the seat temperature Ts are both higher than the comfortable temperatures Ta * and Ts * and the sum of the deterioration margin ΣΔTS is larger than 1, the controller 50 operates the air conditioning units 1B and 1C in the maximum cooling operation mode ( Step S52). At this time, when ΣΔTS is efficiently improved by operating the air conditioning units 1A, 1B with respect to the element Ta, the air conditioning units 1A, 1B are operated until the deterioration margin ΔTSa for the element Ta becomes zero. Maximum output operation is performed for Ta. After ΔTSa = 0, the outputs of the air conditioning units 1A and 1B to the element Ta are adjusted so as to maintain the state, and surplus energy of the air conditioning unit 1A is output to the element Ts (step). S520D to step S520F). As a result, the deterioration allowance ΔTSa for the element Ta can be improved early, and the deterioration allowance ΔTSs for the element Ts can also be improved.

  On the other hand, when ΣΔTS is efficiently improved by operating the air conditioning unit 1A at the maximum output for the element Ts and operating the air conditioning unit 1B at the maximum output for the element Ta, the deterioration margin ΔTSa for the element Ta. The air conditioning unit 1B is operated at the maximum output until becomes 0, and the air conditioning unit 1A is operated at the maximum output until the deterioration margin ΔTSs for the element Ts becomes 0 (steps S520G to S520L). Thus, when ΣΔTS> 1, by selecting the operation of the air conditioning units 1A, 1B that efficiently improves ΣΔTS, it is possible to reduce passenger discomfort in a short time.

  When the comfort is improved to some extent by the maximum cooling operation mode (ΣΔTS ≦ 1), the mode shifts to the energy saving cooling operation mode (step S53). In the energy-saving cooling operation mode, it is determined which of ΔTSa and ΔTSs can be set to 0 earlier. If ΔTSa can be set to 0 earlier, the air conditioning unit 1A is operated at maximum output with respect to the element Ts, and ΔTSa And ΔTSs are simultaneously operated to reduce the output so that ΔTSs becomes 0 (steps S530D to S530F). As a result, not only the deterioration margins ΔTSa and ΔTSs of each element are set to 0, but also energy saving is achieved, and an improvement in fuel consumption can be realized.

  In the energy-saving cooling operation mode, when ΔTSs can be set to 0 earlier, the air conditioning unit 1B is operated at the maximum output, and a part of the energy of the air conditioning unit 1A with respect to the element Ts so that ΔTSa and ΔTSs become 0 simultaneously. And the rest is output to the element Ta. As a result, the outputs from the air conditioning units 1A and 1B are efficiently utilized to the maximum, and the deterioration margins ΔTSa and ΔTSs of each element can be reduced to 0 in a short time.

According to 3rd Embodiment, there can exist the following effects.
(1) Since the air conditioning units 1A and 1B are controlled on the basis of the deterioration of the thermal sensation ΔTSa and ΔTSs of the two elements Ta and Ts, the two elements Ta and Ts having different degrees of comfort on the occupant are the same index. It is possible to evaluate and control the air conditioning, and an optimal air conditioning environment can be obtained.
(2) Constants α, β, Ta *, Ts * necessary for obtaining the deterioration margins ΔTSa, ΔTSs of each element are set in advance, and the deterioration margins are calculated using the detected values Ta, Ts of the room temperature and the sheet temperature. Therefore, it is not necessary for the occupant to manually set the sensation level, and air conditioning comfort can be easily increased.

(3) The deterioration rates ΔTSa and ΔTSs of the elements Ta and Ts are improved by the air conditioning unit 1A, and the deterioration margin ΔTSa of the element Ta is improved by the air conditioning unit 1B, so the output from the air conditioning unit 1A is changed to the elements Ta and Ts. Can be efficiently distributed and the deterioration of the thermal sensation can be improved efficiently.
(4) Since the air conditioning is controlled so that the deterioration margins ΔTSa and ΔTSs of the thermal sensation of each element are all 0, uniform comfort throughout the body including the thermal sensation of each part can be obtained.
(5) In the energy saving operation mode, after the deterioration margins ΔTSa and ΔTSs all become 0, the air conditioning units 1A and 1B are controlled with the minimum output necessary to maintain the state of each element, so that the fuel consumption is also improved. improves.
(6) When the deterioration margins ΔTSa and ΔTSs of the thermal sensation of each element cannot be all zero, the air conditioning is controlled so that the sum ΣΔTS of the deterioration margins becomes zero (FIG. 21). Can improve the deterioration.
(7) When the air conditioning units 1A and 1B are each operated at maximum output with respect to the element Ta, and when the air conditioning unit 1A is operated at maximum output with respect to the element Ta and the air conditioning unit 1B is operated at maximum output with respect to the element Ts. Since it is determined which one can efficiently improve the deterioration margin ΣΔTS and more efficient operation is performed (FIG. 19), the deterioration margin ΣΔTS can be improved in a short time.

  In the above embodiment, the room temperature Ta or the seat temperature Ts is controlled by the air conditioning units 1A to 1C, but the temperature element controlled by the temperature control device is not limited to this. For example, the radiation temperature Tr may be controlled instead of the room temperature Ta or the sheet temperature Ts, and the radiation temperature Tr may be controlled in addition to the room temperature Ta and the sheet temperature Ts. Therefore, temperature detecting means other than the inside air temperature sensor 31 and the seat temperature sensor 35 may be used.

  Although the temperatures Ta and Ts are adjusted by the air conditioning units 1A to 1C, the temperature adjusting means is not limited to this. For example, other examples of controlling the seat temperature Ta include ventilating the inside of the seat with a fan, sucking air from the surface of the seat with a fan, circulating temperature-controlled water in the seat, circulating refrigerant in the seat, Various types of heaters such as a built-in heater can be considered. In addition, as an example of controlling the radiation temperature Tr of a member, the air blown from the air conditioning unit is applied to the member to cool / heat the member, the inside of the member is ventilated with a fan, the member is blown with a fan, Various methods are possible, such as circulating temperature-controlled water, circulating refrigerant in the member, heating the member with a heater, exchanging heat with a Peltier element, and exchanging heat with a heat pipe.

  The characteristic of warmth level (Figs. 4 and 5) is determined by a pre-declared experiment, and based on this characteristic, the degree of deviation from the optimum values Ta * and Ts * for each element Ta and Ts is deteriorated. Although set as the charges ΔTSa and ΔTSs, the deterioration allowance setting means is not limited to this. If the air conditioning units 1A to 1C are controlled so as to reduce the deterioration of the thermal sensation, the processing in the controllers 20, 50, 60 as temperature control means is not limited to that described above.

  That is, as long as the features and functions of the present invention can be realized, the present invention is not limited to the vehicle interior temperature control apparatus according to the embodiment. The above description is merely an example, and when interpreting the invention, there is no limitation or restriction on the correspondence between the items described in the embodiment and the items described in the claims.

The figure which shows schematic structure of the vehicle interior temperature control apparatus which concerns on the 1st Embodiment of this invention. The block diagram which shows the control structure of the temperature control apparatus which concerns on 1st Embodiment. The flowchart which shows an example of the process performed with the controller of FIG. The graph which shows a comfortable plane. The figure which shows the result of the passenger | crew's comfort evaluation experiment performed beforehand. The figure which shows the quantity of the deterioration allowance which can be improved per unit time at the time of a maximum output driving | operation. The figure which shows the output required in order to maintain a neutral state. The figure which shows an example of the process of the selective cooling operation mode of FIG. The figure which shows an example of a process of the distribution adjustment cooling operation mode of FIG. The figure which shows an example of a process of the correction | amendment cooling operation mode of FIG. The figure which shows an example of operation | movement of the temperature control apparatus which concerns on 1st Embodiment. The figure which shows schematic structure of the vehicle interior temperature control apparatus which concerns on the 2nd Embodiment of this invention. The block diagram which shows the control structure of the temperature control apparatus which concerns on 2nd Embodiment. The flowchart which shows an example of the process performed with the controller of FIG. The figure which shows an example of the process of the largest cooling operation mode which concerns on 2nd Embodiment. The figure which shows an example of the process of the energy saving cooling operation mode which concerns on 2nd Embodiment. The figure which shows an example of the process of the correction | amendment cooling operation mode which concerns on 2nd Embodiment. The block diagram which shows the control structure of the temperature control apparatus which concerns on 3rd Embodiment. The figure which shows an example of the process of the largest cooling operation mode which concerns on 3rd Embodiment. The figure which shows an example of the process of the energy saving air_conditionaing | cooling operation mode which concerns on 3rd Embodiment. The figure which shows an example of the process of the correction | amendment cooling operation mode which concerns on 3rd Embodiment.

Explanation of symbols

1A to 1C Air-conditioning unit 20, 50, 60 Controller 31 Inside air temperature sensor 35 Seat temperature sensor Ta Room temperature Ts Seat temperature Tr Radiation temperature ΔTSa, ΔTSs, ΔTSr Heating sensation deterioration ΣΔTS Deterioration sum (whole body sensation)

Claims (8)

Temperature detecting means for detecting the temperature of a plurality of different elements that adversely affect the passenger's air conditioning comfort;
Temperature adjusting means for adjusting the temperatures of the detected different elements, respectively.
The degree of deviation from the optimum value of the temperature level corresponding to each temperature detected by the temperature detection means based on the characteristic of the temperature level sensed by the occupant when the plurality of predetermined temperatures are variables ( Hereinafter, the deterioration allowance setting means for setting the deterioration feeling of thermal sensation) respectively,
A vehicle interior temperature control device comprising: temperature control means for controlling the temperature adjustment means so that the deterioration margin of the thermal sensation set by the deterioration allowance setting means is reduced. Temperature detecting means for detecting the temperature of a plurality of different elements that adversely affect the passenger's air conditioning comfort;
Temperature adjusting means for adjusting the temperatures of the detected different elements, respectively.
The degree of deviation from the optimum value of the temperature level corresponding to each temperature detected by the temperature detection means based on the characteristic of the temperature level sensed by the occupant when the plurality of predetermined temperatures are variables ( Hereinafter, the deterioration allowance setting means for setting the deterioration feeling of thermal sensation) respectively,
A vehicle interior temperature control apparatus, comprising: a temperature control means for controlling the temperature adjusting means based on the deterioration feeling of the thermal sensation set by the deterioration allowance setting means. In the vehicle interior temperature control device according to claim 2,
The vehicle is characterized in that the temperature adjusting means is a single temperature adjusting device that adjusts at least two of the air temperature in the passenger compartment, the surface temperature of the seat, and the surface temperature of the member facing the passenger compartment. Indoor temperature control device. In the vehicle interior temperature control device according to claim 2,
The temperature adjusting means is a plurality of temperature adjusting devices that independently adjust at least two of the air temperature in the vehicle interior, the surface temperature of the seat, and the surface temperature of the member facing the vehicle interior. Car interior temperature control device. In the vehicle interior temperature control device according to claim 2,
The temperature adjusting means includes a first temperature adjusting device capable of adjusting at least two of the air temperature in the vehicle interior, the surface temperature of the seat, and the surface temperature of the member facing the vehicle interior, and the adjustable temperature. A vehicle interior temperature control device, characterized in that it is a second temperature adjustment device for adjusting one of the two. In the vehicle interior temperature control apparatus according to any one of claims 2 to 5,
The vehicle interior temperature control device is characterized in that the optimum value is set to a temperature at which the whole body and a plurality of parts of the body are optimized simultaneously. In the vehicle interior temperature control device according to any one of claims 2 to 6,
The exacerbation of the thermal sensation is set to 0 on the comfortable state, larger on the plus side as it gets hotter than the comfortable state, and larger on the minus side as it gets colder than the comfortable state,
The vehicle interior temperature control device, wherein the temperature control means controls the temperature adjusting means so that the deterioration of the thermal sensation set for each element becomes zero. In the vehicle interior temperature control device according to any one of claims 2 to 6,
The exacerbation of the thermal sensation is set to 0 on the comfortable state, larger on the plus side as it gets hotter than the comfortable state, and larger on the minus side as it gets colder than the comfortable state,
The temperature control means determines whether or not the deterioration margin of the thermal sensation set for each element can be all zero, and if it is determined that all can be reduced to zero, the deterioration margin of the thermal sensation for each element is determined. The temperature adjusting means is controlled so that each becomes zero, and when it is determined that all cannot be reduced to 0, the temperature adjusting means is adjusted so that the total value of the deterioration of thermal sensation for each element becomes zero. A vehicle interior temperature control device characterized by controlling.

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