JP2019123364A - Vehicle air-conditioning control device, vehicle air-conditioning control method and program - Google Patents

Abstract

To provide a vehicle air-conditioning control device capable of properly controlling an air conditioner in response to a plurality of requests including a request for a temperature and the like.SOLUTION: A vehicle air-conditioning control device comprises a selection part and a control part. The selection part selects a control operation pattern for controlling an air conditioner on the basis of an amenity index related to an internal temperature of a vehicle and indicating amenity, and an energy-saving index related to power consumption of the air conditioner provided in the vehicle. The control part outputs a control command value into the air conditioner by creating it on the basis of the control operation pattern.SELECTED DRAWING: Figure 2

Description

  The embodiment relates to a vehicle air-conditioning control device, a vehicle air-conditioning control method, and a program.

  There is known a control device for controlling an air conditioner of a vehicle such as a train. Such a control device controls an air conditioner, for example, based on a preset temperature.

Patent No. 3842688 gazette JP, 2014-205405, A Patent No. 6151090 gazette Unexamined-Japanese-Patent No. 1-214201 gazette Patent No. 5840309 Patent No. 5721775 gazette

  However, even if the control device described above can properly control the air conditioner in response to a single request such as temperature, the control device can not appropriately control the air conditioner in response to a plurality of requests including temperature and the like. There is.

  In order to solve the subject mentioned above, a vehicle air-conditioning control device of an embodiment is provided with a selection part and a control part. The selection unit is for controlling the air conditioner on the basis of a comfort index related to the temperature inside the vehicle and indicating comfort, and an energy saving index related to the power consumption of the air conditioner provided in the vehicle. Select a control operation pattern. The control unit creates a control command value based on the control operation pattern and outputs the control command value to the air conditioner.

FIG. 1 is an overall view showing the configuration of a vehicle equipped with the vehicle air conditioning control device of the first embodiment. FIG. 2 is a block diagram for explaining the vehicle air conditioning control system of the first embodiment. FIG. 3 is a graph illustrating the relationship between the operation pattern and the temperature selected by the selection unit. FIG. 4 is a graph plotting the relationship between the comfort index and the energy saving index in the driving pattern. FIG. 5 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the first embodiment performed by the processing unit. FIG. 6 is a flowchart of an indicator area setting process performed by the determination unit. FIG. 7 is a flowchart of a control process of controlling an air conditioner based on a control operation pattern in the air conditioning control process of the first embodiment performed by the processing unit. FIG. 8 is a graph illustrating an operation pattern corrected by the control unit. FIG. 9 is a flowchart of control processing of the second embodiment. FIG. 10 is a graph illustrating an operation pattern selected by the selection unit. FIG. 11 is a graph illustrating the operation pattern selected by the selection unit. FIG. 12 is a graph illustrating an operation pattern selected by the selection unit. FIG. 13 is a graph illustrating an operation pattern selected by the selection unit. FIG. 14 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the third embodiment executed by the processing unit. FIG. 15 is a graph illustrating an operation pattern selected by the selection unit. FIG. 16 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the fourth embodiment performed by the processing unit. FIG. 17 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the fourth embodiment performed by the processing unit. FIG. 18 is a flowchart of the mode determination process performed by the processing unit.

  The following exemplary embodiments and modifications include similar components. Therefore, in the following, similar components are denoted by the same reference numerals, and overlapping descriptions are partially omitted. The parts included in the embodiment and the modification can be replaced with the corresponding parts of the other embodiments and the modification. Further, the configurations, positions, and the like of the parts included in the embodiment and the modifications are the same as those of the other embodiments and the modifications unless otherwise stated.

First Embodiment
FIG. 1 is an overall view showing a configuration of a vehicle 10 equipped with a vehicle air conditioning control device 26 of the first embodiment. The vehicle 10 is, for example, a train having a motor driven by electricity, and a railcar traveling on a preset rail including a train having a diesel engine, a passenger car, and the like. As shown in FIG. 1, the vehicle 10 includes a vehicle body 12, a plurality of wheels 14, and a vehicle air conditioning control system 18.

  The vehicle body 12 has a hollow rectangular parallelepiped shape, and a cabin such as a cabin is formed inside. The vehicle body 12 accommodates passengers and the like in the vehicle compartment.

  The plurality of wheels 14 are provided at the lower part of the vehicle body 12. The wheels 14 support the vehicle body 12 and rotate by the driving force transmitted from a drive source such as a motor or the pulling of the other vehicle 10 to move the vehicle body 12 along the rails.

  The vehicle air conditioning control system 18 adjusts the temperature inside the vehicle 10 and the like. The vehicle air conditioning control system 18 includes an air conditioner 20, a vehicle information control device 21, a temperature detection unit 22, a humidity detection unit 23, a variable load detection unit 24, and a vehicle air conditioning control device 26.

  The air conditioner 20 is provided in the vehicle 16 and is, for example, an air conditioner (so-called air conditioner) such as an outdoor unit and an indoor unit including a heat exchanger, a blower fan, a compressor and a refrigerant. The air conditioner 20 may be a heating device such as a heater. The air conditioner 20 is connected to the vehicle air conditioning controller 26 so as to transmit and receive information. The air conditioner 20 controls a blower fan, a compressor, or the like so that the air conditioning capacity level indicated by the control command value output by the vehicle air conditioning control device 26 is obtained. The air conditioning capacity level is a level that indicates the strength of the air conditioning of the air conditioner 20, and is indicated by, for example, five levels. Thus, the air conditioner 20 supplies warm air or cold air into the vehicle compartment to adjust the in-vehicle temperature, which is the temperature inside the vehicle 10. The air conditioner 20 outputs, to the vehicle air-conditioning control device 26, setting information including information on settings of the air conditioner 20, such as a set temperature and an operating state indicating on or off.

  The vehicle information control device 21 is a so-called Train Control & Monitoring System. The vehicle information control device 21 has a function serving as an interface for monitoring the driving condition of each device mounted on the vehicle 10, and acquiring a control command of each device from a crew member including an operator. The vehicle information control device 21 acquires the target temperature set by the crew or the like for the air conditioner 20 and the input information regarding the setting mode which is the mode set for the air conditioner 20, and outputs the input information to the vehicle information control device 21. You may In addition, the vehicle information control device 21 acquires, from crews and the like, operation information such as traveling time between each station based on daily operation schedule and stopping time at each station, and power consumption of the air conditioner 20 performance. , And may be output to the vehicle information control device 21.

  The temperature detection unit 22 is, for example, a temperature sensor that detects a temperature. The temperature detection unit 22 is provided in the vehicle compartment. The temperature detection unit 22 may be provided in the air conditioner 20. The temperature detection unit 22 detects an in-vehicle temperature, which is the temperature inside the vehicle 10, and outputs temperature information indicating the in-vehicle temperature to the vehicle air conditioning control device 26.

  The humidity detection unit 23 is, for example, a humidity sensor that detects humidity. The humidity detection unit 23 is provided in the vehicle compartment. The humidity detection unit 23 may be provided in the air conditioner 20. The humidity detection unit 23 detects an in-vehicle humidity which is the humidity inside the vehicle 10, and outputs humidity information indicating the in-vehicle humidity to the vehicle air conditioning control device 26.

  The adaptive load detection unit 24 is, for example, a load sensor that detects a load. The variable load detection unit 24 is provided at the lower part of the vehicle body 12. The variable load detection unit 24 detects a cabin weight which is a weight of a cabin including an occupant inside the vehicle body 12, and outputs weight information indicating the cabin weight to the vehicle air conditioning control device 26.

  The vehicle air-conditioning control device 26 can transmit and receive, for example, the air conditioner 20, the vehicle information control device 21, the temperature detection unit 22, the humidity detection unit 23, the load detection unit 24, and electric signals and information by wired or wireless communication. Connected computers. The vehicle air conditioning control device 26 controls the air conditioner 20 based on the in-vehicle comfort, the power consumption of the air conditioner 20, and the like.

  FIG. 2 is a block diagram for explaining the vehicle air conditioning control system 18 of the first embodiment. The vehicle air conditioning control device 26 creates a temperature and humidity prediction model 46 that calculates and predicts the future vehicle interior temperature and the interior humidity according to the set temperature of the air conditioner 20, the interior temperature, the interior humidity, and the cabin weight. Do. The vehicle air conditioning control device 26 controls the air conditioner 20 based on the comfort and the power consumption of the air conditioner 20 calculated from the in-vehicle temperature and the in-vehicle humidity predicted based on the prediction model 46 of the temperature and humidity. A control command value is created to control the air conditioner 20. As shown in FIG. 2, the vehicle air conditioning control device 26 has a processing unit 30 and a storage unit 32.

  The processing unit 30 is a hardware processor such as a central processing unit (CPU). The processing unit 30 executes various arithmetic processing by reading a program. The processing unit 30 includes an acquisition unit 34, a creation unit 36, a determination unit 37, a selection unit 38, and a control unit 40. The processing unit 30 obtains the functions of the acquisition unit 34, the creation unit 36, the determination unit 37, the selection unit 38, and the control unit 40, for example, by reading the air conditioning control program 42 stored in the storage unit 32. The acquisition unit 34, the creation unit 36, the determination unit 37, the selection unit 38, and the control unit 40 are configured by hardware including a circuit such as an application specific integrated circuit (ASIC) or a field-programmable gate array (FPGA). It is also good.

  The acquisition unit 34 acquires information for controlling the air conditioner 20. The acquisition unit 34 may acquire the information in the same cycle as a cycle (hereinafter referred to as a control command cycle) of creating a control command value for controlling the air conditioner 20. For example, the acquisition unit 34 acquires setting information on the preset temperature and the like that has already been set, from the air conditioner 20 or the vehicle information control device 21. The acquisition unit 34 acquires, from the vehicle information control device 21, operation information including an operation diagram input by a crew member, and input information and the like regarding the setting mode of the air conditioner 20 and the like. The acquisition unit 34 acquires temperature information on the in-vehicle temperature from the temperature detection unit 22. The acquisition unit 34 acquires humidity information on the in-vehicle humidity from the humidity detection unit 23. The acquisition unit 34 acquires weight information on the cabin weight from the variable load detection unit 24. The acquisition unit 34 acquires temperature information, humidity information, and weight information multiple times at different times as acquisition data 44 for each control command cycle, and stores the information and the acquisition time in the storage unit 32. The acquisition unit 34 acquires setting information, operation information, and input information as acquisition data 44 multiple times at different times for each predetermined update cycle of the vehicle information control device 21, and stores the acquired information along with the acquisition time. Save to

The creation unit 36 calculates the temperature in the following equation (1), which is a model for calculating and predicting the in-vehicle temperature at time t + 1 earlier than the current time t based on the plurality of acquired data 44 at different times. Create a prediction model 46 of For example, the creation unit 36 may create the temperature prediction model 46 at each predetermined creation timing. “A”, “b”, “c” and “d” shown in equation (1) are model coefficients that define the temperature prediction model 46. T (t) represents the in-vehicle temperature [° C.] at time t. Time t is the current time or the latest time when acquired data 44 is acquired. The in-vehicle temperatures T (t), T (t-1),... Include the temperatures detected by the temperature detection unit 22 in the past. u (t) represents the set temperature [° C.] of the air conditioner 20 at time t. w (t) indicates the weight of the compartment [kg] at time t. Note that w (t) may be the weight of the passenger in the vehicle body 12 converted from the boarding ratio and the like stored in advance in association with the cabin weight. Therefore, the prediction model 46 of the temperature represented by the equation (1) can be said to be an equation for calculating the in-vehicle temperature in consideration of the in-vehicle temperature, the set temperature of the air conditioner 20, and the heat generation of the occupant.
T (t + 1) = aT (t) + bu (t) + cw (t) + d (1)

For example, the creation unit 36 substitutes the acquired data 44 of the temperatures for the past four or five times at different times into Equations (2), (3), (4), and (5) shown below. The creation unit 36 calculates the model coefficients a, b, c, d by solving the substituted equation (2) to equation (5), and creates the prediction model 46 of the temperature shown in equation (1) .
T (t) = aT (t-1) + bu (t-1) + cw (t-1) + d (2)
T (t-1) = aT (t-2) + bu (t-2) + cw (t-2) + d (3)
T (t-2) = aT (t-3) + bu (t-3) + cw (t-3) + d (4)
T (t-3) = aT (t-4) + bu (t-4) + cw (t-4) + d (5)

The creation unit 36 creates a humidity prediction model 46 shown in equation (6), which is a model for calculating and predicting the in-vehicle humidity at time t + 1 earlier than the current time t. “E”, “f”, “g” and “h” shown in equation (6) are model coefficients that define the humidity prediction model 46. H (t) indicates the in-vehicle humidity [%] at time t.
H (t + 1) = eH (t) + fu (t) + gw (t) + h (6)

The creation unit 36 may create the humidity prediction model 46 by, for example, the same method as the temperature prediction model 46. Specifically, the creating unit 36 obtains the acquired data 44 of the humidity for the past 4 or 5 times having different times in the following formulas (7), (8), (9), and (10). substitute. The creating unit 36 calculates the model coefficients e, f, g, h by solving the equation (7) substituted from the equation (7) to create the prediction model 46 of the humidity shown by the equation (6) .
H (t) = eH (t-1) + fu (t-1) + gw (t-1) + h (7)
H (t-1) = eH (t-2) + fu (t-2) + gw (t-2) + h (8)
H (t-2) = eH (t-3) + fu (t-3) + gw (t-3) + h (9)
H (t-3) = eH (t-4) + fu (t-4) + gw (t-4) + h (10)

  The creation unit 36 stores the created prediction model 46 of temperature and humidity in the storage unit 32.

  The determination unit 37 sends the air conditioner 20 to the air conditioner 20 from any of the default mode which is the initial setting, the comfort priority mode in which the comfort in the vehicle 10 is prioritized, and the energy saving priority mode in which reduction of power consumption of the air conditioner 20 is prioritized. Determine the setting mode to be set. In the following description, energy saving is described as energy saving. For example, the determination unit 37 may determine the setting mode based on input information for setting a mode by a crew member or the like acquired by the vehicle information control device 21. The determination unit 37 outputs the determined setting mode to the selection unit 38.

  The determination unit 37 sets an index area according to the determined setting mode. The index area is, for example, an area for determining whether or not the operation pattern satisfies the mode condition in order to select the control operation pattern for controlling the air conditioner 20 from the plurality of operation patterns. Is an area defined by a threshold associated with each setting mode. The determination unit 37 outputs the set index area to the selection unit 38.

  The selection unit 38 selects a control operation pattern for controlling the air conditioner 20 based on the comfort index and the energy saving index. The selection unit 38 may select, for example, a control operation pattern for each selection range described later. The comfort index indicates the comfort inside the vehicle 10, and is an index related to the in-vehicle temperature and the in-vehicle humidity detected by the temperature detection unit 22 and the humidity detection unit 23. The energy saving index is an index related to the power consumption of the air conditioner 20.

The selection unit 38 may calculate, for example, an average value of the discomfort index within the selection range as the comfort index. The discomfort index is a bodily sensation index for simply evaluating the degree of discomfort created by the United States Meteorological Agency. When the discomfort index exceeds 75, 10% of people feel uncomfortable, and when the discomfort index exceeds 80, everyone feels uncomfortable. The selection unit 38 may calculate the discomfort index DI (t) at time t based on the following equation (11) including the in-vehicle temperature T (t) and the in-vehicle humidity H (t) at time t.
DI (t) = 0.81 · T (t) + 0.01 · H (t) · (0.99 · T (t) −14.3) +46.3 (11)

The selection unit 38 may calculate the time average of the discomfort index as the comfort index based on the following equation (12) using the discomfort index. SR_T is an example of the first time, which is the time from the start to the end of the selection range.

The selection unit 38 may calculate the total power consumption of the air conditioner 20 within the selection range as the energy saving index, for example, based on the following equation (13). Eg (t) is a function of time and is the power consumption of the compressor of the air conditioner 20 and the blower fan. Specifically, the selection unit 38 uses the total power consumption of the air conditioner 20 when the air conditioner 20 is controlled based on the control operation pattern so as to be the temperature and the humidity predicted by the prediction model 46 as the energy saving indicator. You may calculate it. The selection unit 38 may calculate the energy saving index based on the power consumption acquired from the vehicle information control device 21. The setting of the air conditioner 20 set by the prediction model 46 or the like may be energy saving index based on the control operation pattern or the like. May be calculated.

  The selection unit 38 calculates the comfort index and the energy saving index for each of the plurality of operation patterns of the air conditioner 20. The selection unit 38 stores in the storage unit 32 a driving pattern result group 48 in which the calculated comfort index and the energy saving index are associated with the driving pattern. The selection unit 38 may select a control operation pattern for controlling the air conditioner 20 from a plurality of operation patterns based on the comfort index and the energy saving index, and may output the control operation pattern to the control unit 40. For example, the selection unit 38 may select, as a control operation pattern, a driving pattern that satisfies the mode in which the comfort index and the energy saving index are set in association with the setting mode determined by the determination unit 37.

  The control unit 40 creates a control command value indicating the air conditioning capacity level based on the control operation pattern selected by the selection unit 38, and outputs the control command value to the air conditioner 20 to control the air conditioner 20. The control unit 40 may create and output a control command value that changes every control command cycle (for example, every few seconds) shorter than the selection range based on the control operation pattern. The control command cycle is an example of a second time.

  The storage unit 32 includes storage devices such as a read only memory (ROM), a random access memory (RAM), a solid state drive (SSD), and a hard disk drive (HDD). The storage unit 32 may be a storage device provided externally via a network. The storage unit 32 stores a program executed by the processing unit 30, data necessary for the execution of the program, data generated by the execution of the program, and the like. For example, the storage unit 32 stores an air conditioning control program 42 that the processing unit 30 executes. The air conditioning control program 42 may be provided by a computer readable storage medium such as a CD-ROM and a DVD-ROM. The storage unit 32 stores acquired data 44 generated by the execution of the air conditioning control program 42, the prediction model 46, and the operation pattern result group 48.

  FIG. 3 is a graph for explaining the relationship between the operation pattern selected by the selection unit 38 and the temperature. FIG. 3 shows an operation pattern when the air conditioner 20 is used for cooling. In addition, since the driving | running pattern at the time of using the air conditioning machine 20 as heating can be approximated with the driving | running | working pattern axisymmetrically with respect to the object axis parallel to a horizontal axis, description is abbreviate | omitted about the case of heating.

  The selection unit 38 selects one of the operation patterns OP1, ..., OPN as the control operation pattern at each of the selection timings ST1, ST2, .... If it is not necessary to distinguish the selection timings ST1, ST2,. If it is not necessary to distinguish the operation patterns OP1, ..., OPN, the operation pattern OP is described. For example, the selection unit 38 may set the selection timing ST during the open time OT in which the vehicle 10 stops at the station and the door is open based on the operation information input to the vehicle information control device 21 by the crew. In this case, the selection unit 38 may select a control operation pattern within the selection range SR from the time when the currently open door is closed to the time when the open door is closed after stopping at the next station. The selection timing ST may be the same as the creation timing for creating the prediction model 46.

  The solid lines indicated by the operation patterns OP1, ..., OPN indicate the temperatures inside the vehicle predicted by the prediction model 46 from the currently acquired data 44 when the air conditioner 20 is operated with the operation patterns OP1, ..., OPN. It shows time series change. For example, the solid line indicated by the operation pattern OP1 is a temperature change when the air conditioning capacity levels of all the air conditioners 20 are operated at the maximum "4" during the selection range SR. The solid line indicated by the operation pattern OPN is a temperature change when the air conditioning capacity levels of all the air conditioners 20 are operated at the lowest level "0" during the selection range SR.

The selection unit 38 selects an operation pattern OP indicating the air conditioning capacity level of each air conditioner 20 for each of the control command timings CT1, CT2,... Which is the start time of the cell CL obtained by dividing the selection range SR. Note that when there is no need to distinguish between the control command timings CT1, CT2,. Each cell CL between adjacent control command timings CT may be shorter than the selection range SR, for example, it may be longer than the time (for example, time required) for starting and stopping the compressor of the air conditioner 20. The control command timing CT is a timing at which the control unit 40 transmits a control command value to the air conditioner 20. For example, the number N of operation patterns OP is determined by the number of stages of the air conditioning capability level and the number of control command timings CT within the selection range SR. In this case, the number of air-conditioning capacity level "5", if the number "4" of the control command timing CT within selected range SR, the number N of the operation pattern OP is a 5 ^four. When acquiring the control operation pattern, the control unit 40 generates a control command value for setting the air conditioner 20 to the air conditioning capability level indicated by the control operation pattern for each control command timing CT, and transmits the control command value to the air conditioner 20.

  FIG. 4 is a graph plotting the relationship between the comfort index and the energy saving index in the driving pattern. The vertical axis shows the comfort index, the upper side is more uncomfortable and the lower side is more comfortable. The horizontal axis shows an energy saving index, the right side shows an increase in power consumption, and the left side shows a reduction in power consumption, that is, energy saving.

  The selection unit 38 calculates the comfort index and the energy saving index in each driving pattern OP. The comfort index may be an average value of the discomfort index DI in the selection range SR calculated from the above-mentioned equation (12). The energy saving index may be the total power consumption of the air conditioner 20 within the selection range SR calculated from the above equation (13). Each dot shown by a white circle in FIG. 4 indicates the comfort index and the energy saving index in each operation pattern OP calculated by the selection unit 38. The selecting unit 38 associates the comfort index and the energy saving index with the driving pattern OP, and registers the result in the driving pattern result group 48 of the storage unit 32.

  The determination unit 37 sets an index area according to the setting mode, and the selection unit 38 selects an operation pattern OP satisfying the mode condition as a control operation pattern based on the index area. For example, when the determination unit 37 determines that the comfort priority mode is set, the determination unit 37 sets less than the comfort threshold Tha as the comfort index area. The selection unit 38 selects the driving pattern OP of the dot DTa having the lowest energy saving index in the comfort index area as a control driving pattern that satisfies the mode of the comfort priority mode. When it is determined that the energy saving priority mode is set, the determination unit 37 sets less than the energy saving threshold Thb as the energy saving indicator area. The selection unit 38 selects the driving pattern OP of the dot DTb with the lowest comfort index in the energy saving index area as a control driving pattern that satisfies the mode of the energy saving priority mode. When determining that the mode is the default mode, the determination unit 37 sets less than the default threshold Thc as the default mode index area. The selection unit 38 selects the operation pattern OP of the dot DTc having the lowest energy saving index in the default mode index area as a control operation pattern that satisfies the mode of the default mode. Each threshold value Tha, Thb, Thc may be determined in advance and stored in the storage unit 32. For example, the default threshold Thc may be "75". The default threshold Thc may be set based on the set temperature inputted to the vehicle information control device 21 by the crew. The comfort threshold Tha is smaller than the default threshold Thc.

  The control unit 40 generates a control command value corresponding to the control operation pattern set by the selection unit 38 and transmits the control command value to the air conditioner 20. Upon acquiring the control command value from the control unit 40 of the vehicle air conditioning control device 26, the air conditioner 20 supplies warm air or cold air to a compartment inside the vehicle body 12 based on the control command value to adjust the in-vehicle temperature.

  FIG. 5 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the first embodiment that the processing unit 30 executes. The processing unit 30 reads the air conditioning control program 42 and executes the selection process of the air conditioning control process. The air conditioning control process is an example of an air conditioning control method of the air conditioner 20 of the vehicle 10.

  As shown in FIG. 5, in the selection process of the air conditioning control process, the acquisition unit 34 sets information from the air conditioner 20, the vehicle information control device 21, the temperature detection unit 22, the humidity detection unit 23, and the load detection unit 24. Information and weight information are acquired as acquired data 44, and are stored in the storage unit 32 (S102). Note that the acquisition unit 34 may execute step S102 for each control command cycle in which a control command value is generated.

  The creation unit 36 determines whether to create a temperature prediction model 46 (S104). For example, the creation unit 36 may determine to create the temperature prediction model 46 when the selection timing (or creation timing) within the open time OT while the station is stopped is reached. If the creating unit 36 determines that the temperature prediction model 46 is not created (S104: No), it executes step S110.

  When the creating unit 36 determines to create the temperature prediction model 46 (S104: Yes), the creating unit 36 refers to the acquisition time and obtains the acquired data 44 of the past multiple times (for example, the past four times or five times) from the storage unit 32. Call (S106). The creation unit 36 may call out the acquired data 44 by thinning out part of the acquired data 44 instead of the continuous acquired data 44. The creation unit 36 creates the prediction model 46 and stores it in the storage unit 32 (S108). Specifically, the creating unit 36 solves the equation (2) from the equation (2) into which the acquired acquisition data 44 has been called, solves the equation (5), and calculates model coefficients a, b, c, d. Create The creating unit 36 creates a prediction model 46 of humidity by solving the equations (7) into which the acquired acquisition data 44 has been called out and solving the equation (10) to calculate model coefficients e, f, g, h. The creation unit 36 may create a plurality of prediction models 46 having different times after time t + 2 and store the prediction models 46 in the storage unit 32. Specifically, the creation unit 36 may repeat step S108 to create a new temperature and humidity prediction model 46 based on the in-vehicle temperature and the in-vehicle humidity predicted by the created prediction model 46. By repeating this, the creation unit 36 may create a plurality of prediction models 46.

  The determination unit 37 determines the setting mode from any one of the default mode, the comfort priority mode, and the energy saving priority mode, based on input information input by a crew member or the like via the vehicle information control device 21 (S110). The determination unit 37 executes an indicator area setting process of setting an indicator area based on the setting mode (S111).

  FIG. 6 is a flowchart of the index area setting process performed by the determination unit 37.

  As shown in FIG. 6, in the designated area determination process, the determination unit 37 sets an index area in the default mode (S124). For example, the determination unit 37 sets the comfort index less than the default threshold Thc as the default mode index area (see FIG. 4).

  Determination unit 37 determines whether or not there is a setting of the energy saving priority mode (S126). When the energy saving priority mode is set in step S110, it is determined that the energy saving priority mode is set (S126: Yes), and the index region of the energy saving priority mode is set (S125). For example, the determination unit 37 sets the energy saving index less than the energy saving threshold Thb as the index region of the energy saving priority mode (see FIG. 4). When the energy saving priority mode is not set in step S110, it is determined that the energy saving priority mode is not set (S126: No), and step S125 is not executed.

  The determination unit 37 determines whether or not there is a setting of the comfort priority mode (S128). When the comfort priority mode is set in step S110, it is determined that the comfort priority mode is set (S128: Yes), and the index region of the comfort priority mode is set (S129). For example, the determination unit 37 sets the comfort index less than the comfort threshold Tha as the index area of the comfort priority mode (see FIG. 4). When the comfort priority mode is not set in step S110, it is determined that the comfort priority mode is not set (S128: No), and step S129 is not executed.

  Returning to FIG. 5, the selection unit 38 extracts one of the operation patterns OP of the air conditioner 20 as a temporary operation pattern (S 114). The selection unit 38 calculates the comfort index in the temporary driving pattern from Expression (12) based on the in-vehicle temperature and the in-vehicle humidity calculated based on the prediction model 46 (S116). The selection unit 38 calculates the energy saving index in the temporary operation pattern from Expression (13) (S118). The selecting unit 38 associates the calculated comfort index and the energy saving index with the temporary driving pattern, and stores it as a part of the driving pattern result group 48 of the storage unit 32 (S120). The selection unit 38 executes steps S114 to S120 for all driving patterns (S112).

  The selection unit 38 uses the index area set in step S111 among the comfort index and the energy saving index of the plurality of operation patterns OP indicated by the operation pattern result group 48, and sets the air conditioner 20 to the operation pattern OP satisfying the mode. Select as a control operation pattern to control. For example, in the case of the default mode, the selection unit 38 selects the operation pattern OP having the smallest energy saving index in the index region of the default mode as a control operation pattern that satisfies the mode of the default mode. In the case of the energy saving priority mode, the selecting unit 38 selects the driving pattern OP having the smallest comfort index among the index regions of the energy saving priority mode as a control driving pattern which satisfies the mode of the energy saving priority mode. In the case of the comfort priority mode, the selection unit 38 selects the driving pattern OP having the smallest energy saving index in the index area of the comfort priority mode as a control driving pattern that satisfies the mode of the comfort priority mode. The selection unit 38 outputs the selected control operation pattern to the control unit 40 (S122). Thereafter, the processing unit 30 repeats step S102 and subsequent steps. When the processing unit 30 receives an instruction to end control of the air conditioner 20 or the like, the processing unit 30 may end the air conditioning control processing selection process.

  FIG. 7 is a flowchart of a control process of controlling the air conditioner 20 based on the control operation pattern in the air conditioning control process of the first embodiment which the processing unit 30 executes. The processing unit 30 reads the air conditioning control program 42 and executes control processing of the air conditioning control process. The air conditioning control process is an example of a control method of the air conditioner 20 of the vehicle 10. The processing unit 30 may execute control processing in accordance with the control command timing CT of the air conditioner 20.

  As shown in FIG. 7, in the control process of the air conditioning control process, the control unit 40 determines whether the control operation pattern acquired from the selection unit 38 is acquired (S130). The control part 40 will be in a standby state until it acquires a control driving | operation pattern (S130: No). When acquiring the control operation pattern (S130: Yes), the control unit 40 determines whether or not it is the control command timing CT (S132). The control unit 40 is in a standby state until the control command timing CT comes (S132: No). When the control command timing CT comes (S132: Yes), the control section 40 creates a control command value instructing the air conditioning capability level of the control timing indicated by the control operation pattern acquired from the selection section 38 (S134). The control unit 40 transmits the generated control command value to the air conditioner 20, and controls the air conditioner 20 in accordance with the control operation pattern (S136). Upon acquiring the control command value, the air conditioner 20 air-conditions the interior of the vehicle by controlling the compressor, the blower fan, and the like so that the air conditioning capacity level indicated by the control command value is obtained. The control unit 40 determines whether it is the next selection timing SI (S138). If the control part 40 determines that it is not selection timing ST (S138: No), step S132 or subsequent ones will be repeated. In other words, the control unit 40 creates and transmits a control command value for each control command timing CT until the selection timing ST is reached. When the selection timing ST is reached (S138: Yes), the control unit 40 returns to step S130, acquires a new control operation pattern, and executes step S132 and subsequent steps based on the new control operation pattern.

  After this, the processing unit 30 repeats step S130 and subsequent steps. When the processing unit 30 receives an instruction to end control of the air conditioner 20 or the like, the processing unit 30 may end the control processing of the air conditioning control processing.

  As described above, since the vehicle air conditioning control device 26 according to the first embodiment selects the control operation pattern based on the comfort index and the energy saving index, energy saving can be realized while improving the energy saving while improving the comfort. It is possible to select a control operation pattern that achieves comfort while causing Thus, the vehicle air conditioning control device 26 can appropriately control the air conditioner 20 with respect to two requirements of comfort and energy saving.

  The vehicle air-conditioning control device 26 creates control command values for each control command cycle shorter than the selection range SR, so that finer control of the air conditioner 20 can be realized. Further, the vehicle air conditioning control device 26 can reduce the processing load required for selecting the control operation pattern by selecting the control operation pattern of the selection range SR longer than the control command cycle at one time.

  The vehicle air conditioning control device 26 selects the control driving pattern based on the comfort index and the energy saving index calculated for each of the plurality of driving patterns, so that the control driving pattern according to the comfort and the energy saving can be selected.

  Since the vehicle air conditioning control device 26 selects a control operation pattern in which the comfort index and the energy saving index satisfy the mode of the setting mode among the plurality of operation patterns, it is possible to select a control operation pattern according to the setting mode.

Second Embodiment
Next, a second embodiment in which the control unit 40 corrects the control command value based on the in-vehicle temperature predicted from the control driving pattern and the in-vehicle temperature measured by the temperature detection unit 22 will be described.

  FIG. 8 is a graph illustrating the operation pattern OP corrected by the control unit 40. FIG. 8 is a graph corresponding to FIG.

  For example, it is assumed that the selection unit 38 selects the operation pattern OP2 as the control operation pattern. The control unit 40 controls the air conditioner 20 by generating a control command value along an operation pattern OP2 that is a control operation pattern. In this case, the in-vehicle temperature predicted from the control driving pattern using the prediction model 46 changes as shown in the driving pattern OP2 of FIG. However, the measured value MVa of the in-vehicle temperature detected by the temperature detection unit 22 is higher than the predicted in-vehicle temperature. In this case, the control unit 40 corrects the control command value so as to strengthen the air conditioning capability level indicated by the operation pattern OP2. For example, at measurement time MT, control unit 40 has an air conditioning capacity level of operation pattern OP at control command timing CT3 next to measurement time MT being “2”, which is higher than the in-vehicle temperature of actual value MVa. If the control command value is created, the air conditioning capacity level is increased to "3" to create a control command value.

  FIG. 9 is a flowchart of control processing of the second embodiment. Among the steps of the control process of the second embodiment, the description will be simplified regarding the same steps as the control process of the first embodiment.

  As shown in FIG. 9, in the control process of the second embodiment, after steps S130 and S132, the control unit 40 creates a control command value based on the control operation pattern acquired from the selection unit 38 (S134). When air conditioner 20 is controlled according to the control operation pattern, control unit 40 determines whether the in-vehicle temperature predicted by prediction model 46 is apart from the actually measured in-vehicle temperature (S232). . For example, if the magnitude of the difference between the predicted in-vehicle temperature and the actually measured in-vehicle temperature is equal to or greater than a predetermined threshold temperature, the control unit 40 determines that the two in-vehicle temperatures are diverging. Good. If the control unit 40 determines that the temperatures inside the vehicle are different (S232: Yes), it determines whether the air conditioning capacity of the air conditioner 20 can be changed (S234). For example, the control unit 40 may determine that the air conditioning capacity can be changed if the control command timing CT, which is the time required to start the compressor of the air conditioner 20, has passed since the previous control command value was sent. . When determining that the air conditioning capacity can be changed (S234: Yes), the control unit 40 corrects the control command value (S236). Thereafter, the control unit 40 transmits the corrected control command value to the air conditioner 20 (S136).

  On the other hand, when the control unit 40 determines that the temperatures in both vehicles are not different (S232: No), or when it is determined that the air conditioning capacity of the air conditioner 20 can not be changed (S234: No), the control command value is The control command value is transmitted without correction (S136). Thereafter, when the control unit 40 determines that it is not the selection timing ST (S138: No), it repeats step S132 and subsequent steps. When the selection timing ST is reached (S138: Yes), the control unit 40 returns to step S130, acquires a new control operation pattern, and executes step S132 and subsequent steps based on the new control operation pattern.

  As described above, the vehicle air-conditioning control device 26 according to the second embodiment corrects based on the in-vehicle temperature predicted from the control driving pattern and the in-vehicle temperature measured by the temperature detection unit 22. As a result, the vehicle air conditioning control device 26 can control the air conditioner 20 while realizing comfort and energy saving even when the vehicle interior temperature is low because the prediction accuracy is low.

Third Embodiment
Based on the greedy method, the selection unit 38 gradually decreases the air conditioning capacity level from the initial operation pattern OP of the initial level of the air conditioning capacity level to make the average temperature of the operation pattern OP closer to the target value, A third embodiment for selecting a pattern will be described.

  FIG. 10, FIG. 11, FIG. 12, and FIG. 13 are graphs for explaining the operation pattern OP selected by the selection unit 38. In FIG. 10 to FIG. 13, the white circles of the air conditioning capacity level indicate the levels selected in the operation pattern OP. 10 to 13 are graphs corresponding to FIG.

  The selection unit 38 sets a target temperature TT. The target temperature TT may be an in-vehicle temperature calculated based on Equation (12) from a target comfort index set in advance. In this case, the in-vehicle humidity to be substituted into the equation (12) may be calculated from the prediction model 46, or may be a preset in-vehicle humidity. In addition, although the target comfort index may be set for each mode, in this case, the target temperature TT becomes a different value for each mode, but one target temperature TT is selected for selection of the operation pattern OP below. It explains based on.

  The selection unit 38 divides the selection range SR into a plurality of cells CL. The cell CL may be, for example, a time longer than the startup time of the compressor. The start time of each cell CL is a control command timing CT.

  As shown in FIG. 10, the selection unit 38 calculates the average temperature ATa in the selection range SR when operating with the operation pattern OP1 as the operation pattern OP of the initial reference solution. The operation pattern OP1 is a pattern of the strongest level for operating the air conditioner 20 at the strongest air conditioning capacity level "4" in the entire selection range SR. The selection unit 38 integrates the in-vehicle temperature calculated from the prediction model 46 in the in-vehicle temperature when driving with the driving pattern OP1 in the selection range SR, and calculates the arithmetic mean value divided by the integrated number as the average temperature ATa You may

  Next, the selection unit 38 gradually weakens the air conditioning capacity level of any of the cells CL so as to increase the energy saving index, and brings it close to the target value calculated from the comfort index to select the control operation pattern. Specifically, the selection unit 38 calculates the average temperature within the selection range SR when operating with each of the gradually reduced operation patterns OP. For example, in the example illustrated in FIG. 11, the selection unit 38 calculates the average temperature ATb in the selection range SR when operating with the operation pattern OPa2 in which the air conditioning capacity level of the first cell CL is changed to "3".

  Next, the selection unit 38 calculates the average temperature within the selection range SR when the air conditioning capacity level of the cell CL different from the cell CL whose air conditioning capacity level is changed in the operation pattern OPa2 is weakened. For example, in the example illustrated in FIG. 12, the selection unit 38 is in the selection range SR when operating with the operation pattern OPa3 in which the air conditioning capability level of the third cell CL is changed to “3” with respect to the operation pattern OP1. An average temperature ATc is calculated.

  The selection unit 38 repeats the above process to change the air conditioning capacity level of any of the cells CL to "3" and set the air conditioning capacity level of the remaining cells CL to "4". The average temperature of the operation pattern OP is calculated. Here, since the number of cells CL is four, the selection unit 38 calculates an average temperature of four. The selection unit 38 sets an operation pattern OP of the lowest average temperature among the calculated four average temperatures as an operation pattern of a new reference solution. In other words, the selection unit 38 selects an operation pattern OP having the highest energy efficiency and capable of improving energy saving as a new reference solution among the operation patterns OP having the same total sum of air conditioning capacity levels in the selection range SR. For example, when the average temperature ATc of the operation pattern OPa3 illustrated in FIG. 12 is the lowest, the selection unit 38 sets the operation pattern OPa3 as a new reference solution.

  The selection unit 38 weakens the air conditioning capacity level of each cell CL of the operation pattern OPa3 and repeats the same process as described above to make the average temperature approach the target temperature TT, which is an example of the target value. For example, as shown in FIG. 13, the selection unit 38 calculates the average temperature ATd of the operation pattern OPb1 in which the air conditioning capacity level of the first cell CL is “3”. When the average temperature ATd falls within the target temperature range, the selection unit 38 selects the operation pattern OPb1 as a control operation pattern. The target temperature range is, for example, between the target temperature TT and the temperature TT−ΔT obtained by subtracting the difference temperature ΔT from the target temperature TT. The difference temperature ΔT may be stored in a predetermined storage unit 32.

  FIG. 14 is a flowchart of a selection process of selecting a control operation pattern in the air conditioning control process of the third embodiment that the processing unit 30 executes. Among the steps of the selection process of the third embodiment, the description of the same steps as those of the selection process of the first embodiment will be simplified or omitted.

  As shown in FIG. 14, the processing unit 30 according to the third embodiment executes steps S102 to S110.

  The selection unit 38 sets a target temperature range based on the comfort index (S351). The selection unit 38 divides the selection range SR into a plurality of cells CL (S352). The selection unit 38 sets an operation pattern OP in which the air conditioning capacity level of each cell CL is the strongest (for example, "4") as an initial reference solution (S354).

  For example, as shown in FIG. 11, the selection unit 38 sets an operation pattern OP obtained by weakening the air conditioning capability level of any cell CL (for example, the first cell CL) of the operation pattern OP of the reference solution S360). The selection unit 38 calculates the average temperature of the set operation pattern OP and stores the calculated average temperature in the storage unit 32 (S 362). The selection unit 38 determines whether the average temperature exceeds the target temperature range (S364). If it is determined that the average temperature exceeds the target temperature range (S364: Yes), the selection unit 38 repeats step S356 and subsequent steps. If it is determined that the average temperature does not exceed the target temperature range (S364: No), the selection unit 38 determines whether the operation pattern OP is the maximum efficiency based on the average temperature (S366). For example, when the average temperature of the current operation pattern OP is lower than the average temperature of the operation pattern OP already stored in the storage unit 32 as the maximum efficiency, the selection unit 38 has the maximum efficiency of the current operation pattern OP. It may be determined that

  If it is determined that the operation pattern OP is the maximum efficiency (S366: Yes), the selection unit 38 overwrites and updates the operation pattern OP of the maximum efficiency stored in the storage unit 32 with the operation pattern OP (S368) . If it is determined that the operation pattern OP is not the maximum efficiency (S366: No), the selection unit 38 does not update the operation pattern of the maximum efficiency stored in the storage unit 32. Thereafter, the selection unit 38 repeats steps S360 to S368 until the air conditioning capacity levels of all the cells CL are reduced by one level (S358). The selection unit 38 updates the operation pattern OP of the maximum efficiency after reducing the air conditioning capacity levels of all the cells CL by one stage as a new reference solution (S370).

  The selection unit 38 executes steps S358 to S370 with respect to the driving pattern OP of the new reference solution. That is, the selection unit 38 executes, for each cell CL, one-step weakening of the air conditioning capability level of any of the cells CL of the operation pattern OP of the new reference solution to select the operation pattern OP of maximum efficiency. The selecting unit 38 updates the reference solution with the new driving pattern OP when the driving pattern OP having the highest efficiency is newly selected. The selection unit 38 repeats steps S358 to S370 until the average temperature of the maximum efficiency operation pattern OP falls within the target temperature range (S356). When the average temperature of the operation pattern OP having the maximum efficiency falls within the target temperature range, the selection unit 38 selects the operation pattern OP as a control operation pattern and transmits it to the air conditioner 20 (S122).

  As described above, the vehicle air conditioning control device 26 of the third embodiment gradually weakens the air conditioning capability level from the driving pattern OP1 of the strongest level, which is the initial reference solution, to the target temperature calculated from the comfort index. The average temperature is close. Thus, the vehicle air conditioning control device 26 can improve comfort by bringing the average temperature of the driving pattern OP closer to the target temperature while reducing the air conditioning capability level to improve energy saving.

  The vehicle air conditioning control device 26 gradually reduces the air conditioning capacity level from the operation pattern OP1 of the strongest level, which is the initial reference solution, and selects the control operation pattern, so that the air conditioner 20 with a short control command cycle is comfortable. It is possible to select in a short time the control operation pattern that can realize the flexibility and energy saving.

  The vehicle air conditioning control device 26 updates the operation pattern OP having a low average temperature, ie, high energy efficiency, as a reference solution among the operation patterns OP having the same total sum of air conditioning capability levels in the selection range SR as the reference solution. The control operation pattern within the target temperature range is selected. Thus, the vehicle air conditioning control device 26 can select a control operation pattern that can achieve high energy efficiency and energy saving while improving comfort.

Fourth Embodiment
Among a plurality of operation patterns in which the selection unit 38 sets the air conditioning capacity level to the same level based on the divide-and-conquer method, a provisional operation pattern having an average temperature closest to the target temperature is an initial reference solution and the initial reference solution. A fourth embodiment for selecting a control operation pattern based on a reference floor will be described.

  FIG. 15 is a graph illustrating the operation pattern OP selected by the selection unit 38. FIG. 15 is a graph corresponding to FIG.

  The selection unit 38 generates a plurality of provisional operation patterns OP1, OPb1, OPb2, OPb3 and OPN shown by dotted lines in FIG. For example, the selection unit 38 generates an operation pattern OP in which all the air conditioning capacity levels in the selection range SR are set to the same level. Therefore, all the air conditioning capacity levels in the selection range SR of the operation pattern OP1 are set to "4". Similarly, all the air conditioning capacity levels of the operation pattern OPb1 are set to "3", all the air conditioning capacity levels of the operation pattern OPb2 are set to "2", and all the air conditioning capacity levels of the operation pattern OPb3 are "1" And all the air conditioning capability levels of the operation pattern OPN are set to “0”. The selection unit 38 selects, from among the plurality of operation patterns OP1, OPb1, OPb2, OPb3, and OPN, a provisional operation pattern OP in which the average temperature in the selection range SR is closest to the target temperature. The selection unit 38 selects a control operation pattern based on a provisional operation pattern as an initial reference solution. For example, the selection unit 38 divides the selection range SR to generate the cell CL, and strengthens or weakens the air conditioning capacity level of any of the cells CL in the operation pattern OP as the reference solution, and becomes the target temperature range. A pattern OP, for example, an operation pattern OPb indicated by a solid line in FIG. 15 is selected as a control operation pattern.

  FIG.16 and FIG.17 is a flowchart of the selection process which selects a control driving | operation pattern among the air-conditioning control processes of 4th Embodiment which the process part 30 performs. Among the steps of the selection process of the third embodiment, the description of the same steps as those of the selection process of the above-described embodiment will be simplified or omitted.

  As shown in FIG. 16, the processing unit 30 of the fourth embodiment executes steps S102 to S110.

  The selection unit 38 sets a provisional operation pattern OP (S482). The selection unit 38 calculates an average temperature within the selection range SR of the temporary operation pattern OP, and stores the average temperature in the storage unit 32 (S484). The selection unit 38 sets a target temperature range based on the comfort index (S351). The selection unit 38 sets a provisional operation pattern OP of an average temperature closest to the target temperature range among the calculated average temperatures as an initial reference solution (S486).

  The selection unit 38 divides the selection range SR into cells CL (S352). The selection unit 38 weakens the air conditioning capacity level of any of the cells CL in the operation pattern OP of the initial reference solution (S488). The selection unit 38 determines whether the average temperature of the operation pattern OP whose air conditioning capacity level is weakened approaches the target temperature range (S490).

  If the selection unit 38 determines that the average temperature has approached the target temperature range (S 490: Yes), the control operation pattern is selected by executing steps S 356 to S 122 and on as in the third embodiment, It transmits (S122).

  On the other hand, when it is determined that the average temperature is far from the target temperature range (S490: No), the selection unit 38 executes step S556 and subsequent steps shown in FIG. The processes after step S556 are substantially the same as the processes after step S356 except that the air conditioning capacity level is increased.

  The selection unit 38 sets, for example, an operation pattern OP in which the air conditioning capability level of any cell CL (for example, the first cell CL) of the operation pattern OP of the reference solution is increased by one step (S560). The selection unit 38 calculates the average temperature of the set operation pattern OP and stores the calculated average temperature in the storage unit 32 (S562). If it is determined that the average temperature is lower than the target temperature range (S564: Yes), the selection unit 38 repeats step S556 and subsequent steps. If it is determined that the average temperature is not smaller than the target temperature range (S564: No), the selection unit 38 determines whether the operation pattern OP is the maximum efficiency based on the average temperature (S566). If it is determined that the operation pattern OP is the maximum efficiency (S566: Yes), the selection unit 38 overwrites and updates the operation pattern OP of the maximum efficiency stored in the storage unit 32 with the operation pattern OP (S568) . If it is determined that the operation pattern OP is not the maximum efficiency (S566: No), the selection unit 38 does not update the operation pattern of the maximum efficiency stored in the storage unit 32. Thereafter, the selection unit 38 repeats steps S560 to S568 until the air conditioning capacity level of all the cells CL is increased by one level (S558). The selection unit 38 updates the operation pattern OP of maximum efficiency after increasing the air conditioning capacity levels of all the cells CL by one stage as a new reference solution (S570).

  The selection unit 38 executes steps S558 to S570 with respect to the driving pattern OP of the new reference solution. That is, the selecting unit 38 increases the air conditioning capacity level of each cell CL of the operation pattern OP of the new reference solution by one step to select the operation pattern OP of the maximum efficiency. The selecting unit 38 updates the reference solution with the new driving pattern OP when the driving pattern OP having the highest efficiency is newly selected. The selection unit 38 repeats steps S558 to S570 until the average temperature of the maximum efficiency operation pattern OP falls within the target temperature range (S556). When the average temperature of the operation pattern OP having the maximum efficiency falls within the target temperature range, the selection unit 38 selects the operation pattern OP as a control operation pattern and transmits it to the air conditioner 20 (S122).

  As described above, the vehicle air conditioning control device 26 of the fourth embodiment selects the operation pattern OP closest to the target temperature as the initial reference solution among the operation patterns OP in which the air conditioning capacity level is unified, and The control operation pattern is selected by gradually changing the air conditioning capacity level from the operation pattern OP. As a result, the vehicle air conditioning control device 26 starts selecting the control operation pattern from the initial reference solution which is the operation pattern OP in which the air conditioning capacity level is unified, so that the control instruction cycle is short and the control instruction timing CT in the selection range SR. Even in the case where a large amount of H is included, the control operation pattern can be selected in a short time.

Fifth Embodiment
The fifth embodiment determines the setting mode in which either the energy saving priority mode or the comfort priority mode is set to the air conditioner 20 based on the power consumption or the internal condition of the vehicle 10 (hereinafter, vehicle condition). The form will be described.

  When the power consumption of the air conditioner 20 of the acquired data 44 acquired by the acquiring unit 34 satisfies the predetermined energy saving condition, the determining unit 37 may determine to set the energy saving priority mode. The energy saving condition is equal to or higher than a predetermined threshold power. Therefore, the determination unit 37 may set the energy saving priority mode if it is equal to or higher than the threshold power.

  The determination unit 37 may determine that the comfort priority mode is set when the vehicle condition of the acquired data 44 acquired by the acquisition unit 34 satisfies the predetermined comfort condition. The vehicle condition may be at least one of the in-vehicle temperature and the in-vehicle humidity detected by the temperature detection unit 22, the humidity detection unit 23, and the variable load detection unit 24, and the load of the vehicle body 12 of the vehicle 10 including the occupant. . For example, the determination unit 37 takes the sum of values obtained by multiplying each of the in-vehicle temperature, the in-vehicle humidity, and the load by weight as the value of the vehicle condition, and compares the value of the vehicle condition with a predetermined threshold condition value. It may be determined whether the vehicle condition satisfies the comfort condition.

  When the energy saving condition and the comfort condition are not satisfied, the determination unit 37 may set the default mode.

  FIG. 18 is a flowchart of the mode determination process performed by the processing unit 30. The mode determination process may be performed instead of step S110 of the selection process, or may be performed after step S110 when there is no mode setting by an occupant or the like.

  In the mode determination process, the determination unit 37 sets the setting mode to the default mode (S692). The determination unit 37 determines whether the power consumption satisfies the energy saving condition (S694). When determining that the power consumption satisfies the energy saving condition (S694: Yes), the determining unit 37 sets the setting mode to the energy saving priority mode (S695).

  If the determination unit 37 determines that the power consumption does not satisfy the energy saving condition (S694: No), the default mode is maintained to determine whether the vehicle condition satisfies the comfort condition (S696). When determining that the vehicle condition satisfies the comfort condition (S696: Yes), the determination unit 37 sets the setting mode to the comfort priority mode (S697).

  When determining that the vehicle condition does not satisfy the comfort condition (S696: No), determination unit 37 maintains the setting mode in the set default mode or the energy saving priority mode, and ends the mode determination process. After this, step S112 and subsequent steps of the selection process are executed.

  Note that the determination unit 37 may end the mode determination process without executing step S696 and subsequent steps after setting the energy saving priority mode (S695), as indicated by the dotted arrow.

  As described above, the vehicle air-conditioning control device 26 according to the fifth embodiment determines either the energy saving priority mode or the comfort priority mode as the setting mode based on the power consumption or the vehicle status, so an appropriate setting mode It can be set. Furthermore, since the vehicle air-conditioning control device 26 sets the index area according to the appropriately installed setting mode, the control operation pattern can be more appropriately selected.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  Although the above embodiment gives an example in which the comfort index is a discomfort index related to in-vehicle temperature and humidity, the comfort index is not limited to the comfort index. If it is possible to sense the necessary data and create prediction models such as heat load, metabolic rate, air flow and radiant heat of the human body like in-vehicle temperature and in-vehicle humidity, the index of comfort is PMV (Predicted Mean Vote) And SET (Standard new Effective Temperature). The comfort index may be a function of the interior temperature not including the interior humidity.

  In the above embodiment, the energy saving index is an example of the total power consumption of the air conditioner 20, but the energy saving index is not limited to the total power consumption of the air conditioner 20. For example, the energy saving index may be the peak power amount of the air conditioner 20 when the air conditioner 20 is controlled to be the in-vehicle temperature and the in-vehicle humidity predicted by the prediction model.

  In the above embodiment, the selection timing ST is set within the open time OT in which the door of the vehicle 10 is open, but the selection timing ST is not limited to this. For example, the selection timing ST may be every predetermined constant cycle.

  In the above embodiment, although the control command timing CT is the time required to start the compressor of the air conditioner 20, the control command timing CT is not limited to this. The control command timing CT is equal to or longer than the time required to start the compressor, and may be irregular.

  In the above embodiment, the number N of operation patterns OP is determined by the number of air conditioning capacity levels and the number of control command timings CT in the selection range SR, but the number N of operation patterns OP is It is not limited. For example, in the case where the operation pattern OP is made different for each air conditioner 20 or for each compressor of the air conditioner 20, the number N of operation patterns OP is the number of air conditioning capacity levels and the number of control command timings CT within the selection range SR; It is determined by the number of the air conditioner 20 or the number of compressors of the air conditioner 20.

  In the embodiment described above, the target temperature range is not limited to the target temperature range, for example, between the target temperature TT and the temperature TT−ΔT obtained by subtracting the difference temperature ΔT from the target temperature TT. For example, the target temperature range may be between the target temperature TT and ± ΔT, that is, between the temperature TT−ΔT and the temperature TT + ΔT.

  In the above embodiment, the selection unit 38 predicts the in-vehicle temperature by the prediction model 46 created based on the in-vehicle temperature newly detected by the creation unit 36, but the method of predicting the in-vehicle temperature is not limited thereto. . For example, the selection unit 38 may predict the temperature based on a preset prediction model.

  In the third embodiment described above, the selection unit 38 gradually weakens the air conditioning capability level of each cell CL from the operation pattern OP1 of the strongest level, and selects the control operation pattern close to the target value calculated from the comfort index. Although an example was given, the method of selecting the control operation pattern is not limited to this. For example, the selection unit 38 gradually increases the air conditioning capacity level of each cell CL from the operation pattern OPN of the weakest level where all the air conditioning capacity levels in the selection range SR are "0", and the target calculated from the comfort index The control operation pattern may be selected close to the value.

  In the above-described third and fourth embodiments, the in-vehicle temperature calculated from the comfort index is set as the target value, but the target value is not limited to the in-vehicle temperature. For example, the target value may be the in-vehicle humidity calculated from the comfort index. In this case, the in-vehicle temperature may adopt a value predicted from the prediction model 46.

  10: vehicle, 18: vehicle air conditioning control system, 20: air conditioner, 26: vehicle air conditioning control device, 37: determination unit, 38: selection unit, 40: control unit, 42: air conditioning control program, 44: acquisition data, 46 : Prediction model, 48: Operation pattern result group, CL: Cell, OP: Operation pattern, SR: Selection range, T: Vehicle temperature, TT: Target temperature.

Claims (10)

A control operation pattern for controlling the air conditioner on the basis of a comfort index related to the temperature inside the vehicle and indicating comfort, and an energy saving index related to the power consumption of the air conditioner provided in the vehicle A selection unit to select
A control unit that generates a control command value based on the control operation pattern and outputs the control command value to the air conditioner;
A vehicle air conditioning control device comprising: Either the energy saving priority mode in which reduction of the power consumption of the air conditioner is prioritized or the comfort priority mode in which the comfort index is prioritized based on the power consumption or a vehicle condition which is an internal condition of the vehicle The vehicle air-conditioning control device according to claim 1, further comprising a determination unit that determines a setting mode to be set to an air conditioner. The selection unit selects the control operation pattern every first time,
The vehicle air-conditioning control device according to claim 1 or 2, wherein the control unit creates and outputs the control command value every second time which is shorter than the first time. The said selection part selects the said control driving pattern from these driving patterns based on the said comfort index and the said energy-saving parameter | index which were calculated with respect to each of several driving patterns. The vehicle air-conditioning control device according to any one of the preceding claims. The selection unit controls the operation pattern satisfying the mode set in correspondence with the mode in which the comfort index and the energy saving index calculated for each of a plurality of operation patterns are set in the air conditioner. The vehicle air-conditioning control device according to claim 4 selected as a driving pattern. The selection unit selects the control operation pattern by gradually weakening the air conditioning capacity level of the air conditioner from the strongest level and approaching the target value set from the comfort index, or the air conditioning capacity level is the weakest The vehicle air-conditioning control device according to any one of claims 1 to 5, wherein the control operation pattern is selected by gradually intensifying from a level and approaching the target value set from the comfort index. The selection unit performs the control based on the provisional operation pattern closest to the target value set from the comfort index among the operation patterns in which the air conditioning capacity levels of the plurality of air conditioners are all set to the same level. The vehicle air-conditioning control device according to any one of claims 1 to 6, wherein an operation pattern is selected. The vehicle air-conditioning control device according to any one of claims 1 to 7, wherein the control unit corrects the control driving pattern based on a temperature predicted from the control driving pattern and a measured temperature. The control operation pattern of the air conditioner is selected based on the comfort index indicating the comfort related to the internal temperature of the vehicle and the energy saving index related to the power consumption of the air conditioner provided in the vehicle,
A control command value is created based on the control operation pattern and is output to the air conditioner.
Vehicle air conditioning control method. A selection unit that selects a control operation pattern of the air conditioner based on a comfort index indicating comfort in relation to the temperature inside the vehicle and an energy saving index related to the power consumption of the air conditioner provided in the vehicle When,
A control unit that generates a control command value based on the control operation pattern and outputs the control command value to the air conditioner;
Programs that make your computer work.

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