Vehicle air conditioning system

Abstract

To provide a vehicle air conditioning system which considers clothes of an occupant when getting in a vehicle to change temperature in a cabin.SOLUTION: A vehicle air conditioning system 1 comprises: a temperature sensor 7 which detects current atmospheric temperature T; a detection device 10 which detects an occupant 21; a memory which conserves characteristic data 25, 26 in which clothing level data CLr with respect to atmospheric temperature data Tr and setting temperature Pt of an air-conditioner unit 6 are generated for each occupant 21; and a control unit 2 which compares a clothing level CL with the clothing level data CLr corresponding to the atmospheric temperature data Tr of the characteristic data 25, 26, refers to the setting temperature Pt of the clothing level data CLr in which the clothing level CL is included from the characteristic data 25, 26, and drives and controls the air-conditioner unit 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle air conditioning system that controls an air conditioner for a vehicle. [Background technology]

[0002] 2. Description of the Related Art Vehicles such as automobiles are provided with vehicle air conditioning systems that control an air conditioner for the vehicle so that the temperature inside the vehicle compartment is set to a preset temperature set by an occupant such as a driver.

[0003] Recently, vehicles have been introduced that are equipped with a function of identifying occupants using an occupant authentication device such as a driver monitoring system. Vehicles have also been introduced that are equipped with a so-called personalization function that authenticates an occupant when the occupant gets in the vehicle and reads various parameters that were previously set.

[0004] Such vehicle personalization functions include, for example, an in-vehicle environment setting system that learns the temperature and airflow settings in the vehicle cabin based on the outside temperature, humidity, and weather, as disclosed in Patent Document 1. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-182096 A Summary of the Invention [Problem to be solved by the invention]

[0006] Conventional vehicle interior environment setting systems learn the user's preferences for setting the vehicle interior environment from the surrounding environment such as air temperature, and set the temperature and air volume inside the vehicle. However, conventional vehicle interior environment setting systems have a problem in that they cannot change the temperature inside the vehicle interior taking into account the differences in the clothes worn by the occupants at that time.

[0007] SUMMARY OF THE PRESENT DISCLOSURE In view of the above problems, an object of the present invention is to provide a vehicle air conditioning system that changes the temperature inside the vehicle cabin while taking into consideration the clothing of the occupants when they get in the vehicle. [Means for solving the problem]

[0008] One embodiment of the present invention provides a vehicle air conditioning system comprising an air conditioning unit, a temperature sensor for detecting a current outside air temperature, a detection device for detecting an occupant, a memory unit for storing clothing level data corresponding to outside air temperature data and characteristic data generated for each occupant which includes the set temperature of the air conditioning unit, and a control means for calculating the clothing level of the occupant detected by the detection device, comparing the calculated clothing level with the clothing level data corresponding to the outside air temperature data which includes the outside air temperature input from the temperature sensor by referring to the characteristic data, and controlling the drive of the air conditioning unit by referring to the set temperature of the clothing level data which includes the clothing level from the characteristic data.

[0009] Another aspect of the present invention provides a vehicle air conditioning system comprising an air conditioning unit, a temperature sensor for detecting a current outside air temperature, a detection device for detecting an occupant, a memory for storing characteristic data generated for each occupant which includes clothing level data corresponding to outside air temperature data and a set temperature of the air conditioning unit, and a control unit for calculating the clothing level of the occupant detected by the detection device, comparing the calculated clothing level with the clothing level data corresponding to the outside air temperature data input from the temperature sensor which includes the outside air temperature by referring to the characteristic data, and controlling the drive of the air conditioning unit by referring to the set temperature of the clothing level data which includes the clothing level by referring to the characteristic data. Effect of the Invention

[0010] According to the present invention, it is possible to provide a vehicle air conditioning system that changes the temperature inside the vehicle compartment taking into consideration the clothing of the occupant when getting in. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a block diagram showing a configuration of a vehicle air conditioning system according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a side view showing a state in which a driver, a passenger user, is seated in a driver's seat. [Diagram 3] FIG. 2 is a front view showing a state in which a driver, a passenger user, wearing thin clothing such as a T-shirt is seated in the driver's seat. [Figure 4] FIG. 2 is a front view showing a state in which a driver, a passenger user, wearing long-sleeved clothing such as a shirt is seated in the driver's seat. [Diagram 5] FIG. 2 is a front view showing a state in which a driver, a passenger user, wearing thick clothing such as sweatshirts is seated in the driver's seat. [Figure 6] FIG. 2 is a front view showing a state in which a driver wearing outer clothing such as a jacket is seated in a driver's seat. [Figure 7] FIG. 2 is a front view showing a state in which a driver wearing cold weather clothing such as a down jacket is seated in the driver's seat. [Figure 8] The figure shows the initial characteristic map. [Figure 9] A figure showing the personalized characteristic map. [Figure 10] A flowchart showing air conditioning control executed by the vehicle air conditioning system. [Figure 11] A flowchart showing personal air conditioning control executed by the vehicle air conditioning system. [Figure 12] 11B is a flowchart showing the personal air conditioning control. [Figure 13] 11C is a flowchart showing the personal air conditioning control. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. A vehicle such as an automobile is equipped with a vehicle air conditioning system 1 according to the present embodiment, as shown in FIG.

[0013] 1 has electrical components such as a main ECU (electronic control unit) 2, a high-precision road map database (road map DB) 3, a locator unit 4, an air conditioning control unit 5, an air conditioning unit (auto air conditioner unit) 6, an outside air temperature sensor 7, a room temperature sensor 8, a solar radiation sensor 9, a driver information acquisition unit 10, a biometric information acquisition device 11, a playback user determination unit 14, a registration information storage unit 13, a driver verification unit 12, an electric seat belt tensioner 15, and a manual temperature setting unit 16. These electrical components are interconnected by an in-vehicle communication line 20 such as a CAN (Controller Area Network).

[0014] The main ECU 2, which is a control unit, transmits and receives drive signals, detection signals, request signals, instruction signals, and the like to and from the various components described above via an in-vehicle communication line 20. The main ECU 2 constitutes an electronic control unit having, for example, an information processing means such as a CPU, storage means such as a RAM and a ROM, an input / output interface, and the like.

[0015] The main ECU 2 transmits and receives various signals to and from a locator unit 4 that is connected to a road map DB 3. A GNSS sensor (not shown) is built into the locator unit 4. The locator unit 4 senses information from the road map DB 3 and the GNSS sensor to calculate the position of the vehicle.

[0016] The GNSS sensor receives positioning signals transmitted from a plurality of positioning satellites. The main ECU 2 senses vehicle position information (latitude, longitude, altitude, etc.) from the positioning signals received by the GNSS sensor.

[0017] The road map DB 3 is a large-capacity storage medium such as a HDD. High-precision road map information (dynamic map) is stored in the road map DB 3. The road map DB 3 also holds road map information for each country, information on the altitude of each location, and the like.

[0018] For example, based on a request signal from the main ECU 2, the road map DB 3 outputs various pieces of information measured by the GNSS sensor of the locator unit 4 to the locator unit 4. Then, the locator unit 4 outputs various pieces of information, such as vehicle position information, road map information, altitude, date and time, to the main ECU 2.

[0019] The main ECU 2 exchanges signals with an air conditioning control unit 5. This air conditioning control unit 5 comprehensively controls an air conditioning unit 6. The air conditioning control unit 5 is configured to include, for example, an information processing means such as a CPU, storage means such as a RAM and a ROM, an input / output interface, and a bus connecting these.

[0020] The air conditioning control unit 5 performs mode control, target temperature setting, blower control, etc. The air conditioning control unit 5 determines the operation of the compressor, blower air volume (none of which are shown) and the like in accordance with the detection values ​​of an outside air temperature sensor 7, a room temperature sensor 8, and a solar radiation sensor 9 (described later) based on the set temperature set by a passenger such as a driver 21.

[0021] In addition, the air conditioning control unit 5 normally controls the air conditioning unit 6 so that the actual temperature inside the vehicle compartment quickly converges to the set temperature.

[0022] Since the air conditioning unit 6 has a well-known configuration, its components will be briefly described below. The air conditioning unit 6 has a target setting section and an HVAC unit (neither of which are shown).

[0023] The HVAC unit adjusts the air temperature, air volume, and air outlet to maintain a set temperature inside the vehicle.

[0024] The target temperature setting unit sets a target temperature at which the air blown into the vehicle cabin by the HVAC unit has an appropriate temperature at the air outlet, and also calculates the amount of heat absorbed by an evaporator (not shown).

[0025] From the result of this calculation, the target temperature setting unit estimates the temperature of the air flow downstream of the evaporator. The target temperature setting unit performs a predetermined correction on this estimated temperature. Then, the target temperature setting unit sets a target temperature for the air conditioning unit 6.

[0026] The air conditioner unit 6 has a blower control unit (not shown). The blower control unit changes the blowing flow rate and flow speed of the airflow from the HVAC unit continuously or stepwise. That is, the blower control unit adjusts the output of a blower (not shown).

[0027] The main ECU 2 receives detection signals from an outside air temperature sensor 7, a room temperature sensor 8, and a solar radiation sensor 9.

[0028] The outside air temperature sensor 7 is a temperature sensor that detects the current air temperature outside the vehicle (outside air temperature T). Based on a request signal from the main ECU 2, the outside air temperature sensor 7 outputs a detected value of the outside air temperature outside the vehicle.

[0029] The room temperature sensor 8 is a temperature sensor that detects the air temperature inside the cabin (the temperature inside the vehicle cabin). The room temperature sensor 8 outputs a detected value of the temperature inside the cabin based on a request signal from the main ECU 2.

[0030] The solar radiation sensor 9 detects the amount of solar radiation entering the cabin. That is, the solar radiation sensor 9 has a photodiode that converts the intensity of sunlight into a change in current. In this way, the solar radiation sensor 9 detects the intensity of sunlight shining onto the vehicle. The solar radiation sensor 9 outputs a detection value of the intensity of sunlight shining onto the vehicle based on a request signal from the main ECU 2.

[0031] The air conditioning control unit 5 reads the detected values ​​of the outside temperature outside the vehicle, the inside temperature in the cabin, and the intensity of sunlight, and controls the drive of the air conditioning unit 6 so that the temperature inside the cabin becomes the set temperature.

[0032] The main ECU 2 also transmits and receives signals to a driver information acquisition unit 10, a biometric information acquisition device 11, a driver verification unit 12, a registration information storage unit 13, and a playback user determination unit .

[0033] The driver information acquisition unit 10 is a detection device equipped with a driver monitoring camera (not shown) that captures an image of a driver 21, who is an occupant of the vehicle. The driver monitoring camera is provided in front of the driver's seat (for example, on a dashboard, an instrument panel, a rearview mirror, etc.). The driver information acquisition unit 10 constitutes a so-called driver monitoring system (DMS), which is a driver state monitoring device.

[0034] The driver information acquisition unit 10 detects, for each acquired image, whether the driver 21 is not paying attention to the front due to looking aside, falling asleep, etc., based on the facial image of the driver 21. That is, the driver information acquisition unit 10 monitors the driver 21's eye open state, the driver's line of sight direction, posture, etc., from the acquired facial image of the driver 21.

[0035] At the same time, the driver information acquisition unit 10 detects the amount of clothing worn by the driver 21. The driver information acquisition unit 10 senses the amount of clothing worn by the driver 21 at that time from the image. Then, the driver information acquisition unit 10 processes the image of the driver 21 captured by the driver monitoring camera, and outputs it as image data.

[0036] The biometric information acquisition device 11 is a device that detects various types of biometric information of the driver 21, such as body temperature, pulse, heart rate, and sweat. The biometric information acquisition device 11 is provided, for example, in a driver's seat (driver's seat) 23 (see FIG. 2). That is, the biometric information acquisition device 11 acquires biometric information of the driver 21 seated in the driver's seat 23. Then, the biometric information acquisition device 11 outputs the acquired various types of biometric information of the driver 21.

[0037] The biometric information acquisition device 11 may be an electronic device such as a smart watch worn by the driver 21 or a smartphone carried by the driver 21. In the case where the biometric information acquisition device 11 is an electronic device such as a smart watch or a smartphone, the biometric information acquisition device 11 transmits the acquired various biometric information of the driver by wireless communication such as Bluetooth (registered trademark).

[0038] The driver matching unit 12 reads image data of the driver 21 acquired by the driver information acquisition unit 10. The driver matching unit 12 also reads user registration information registered in the registration information storage unit 13. The driver matching unit 12 then matches the image data of the driver 21 with the registered user registration information by face authentication or the like, and outputs the matching result.

[0039] The registration information storage unit 13 has a storage means, which is a memory (storage unit) such as a RAM or a ROM, for storing various pieces of information for each driver 21 acquired by the driver information acquisition unit 10. In this registration information storage unit 13, individual user registration information for each driver 21 is stored.

[0040] Various information is stored in the registration information storage unit 13 each time the driver 21 gets in the vehicle. This various information includes, for example, the date and time when the driver 21 gets in the vehicle, the location, the set temperature of the air conditioning unit 6, the outside air temperature of the outside air temperature sensor 7, the inside temperature of the vehicle measured by the room temperature sensor 8, the intensity of sunlight measured by the solar radiation sensor 9, the user ID of the occupant, which will be described later, a characteristic map, and the like.

[0041] The playback user determination unit 14 outputs a playback instruction signal to control the driving of the air conditioning unit 6 by the air conditioning control unit 5 based on various information stored in the registration information storage unit 13 of the driver 21 matched by the driver matching unit 12.

[0042] The electric seatbelt tensioner 15 is a device that winds up a seatbelt 24 (see FIGS. 3 to 7) that restrains a driver 21 seated in a driver's seat 23 by means of an internal motor (not shown) or the like.

[0043] The manual temperature setting unit 16 is provided on a control panel (not shown). The control panel is provided on an instrument panel or the like inside the vehicle cabin. The manual temperature setting unit 16 is an operation unit through which a passenger, such as a driver 21, performs various operations related to the air conditioning unit 6.

[0044] In addition to the manual temperature setting unit 16, the control panel also has a main switch, an auto mode switch, a blower speed switch, a blowing mode switch, an inside / outside air selector switch, and the like (none of which are shown).

[0045] Meanwhile, the main ECU 2 senses the amount of clothing worn by the driver 21 from the image acquired by the driver information acquisition unit 10, for example, thin clothing 31 such as a T-shirt as shown in FIG. 3, long-sleeved clothing 32 such as a shirt as shown in FIG. 4, thick clothing 33 such as a sweater or sweatshirt as shown in FIG. 5, outer clothing 34 such as a jacket as shown in FIG. 6, and cold weather clothing 35 such as a down jacket as shown in FIG. 7, to calculate the clothing level of the driver 21 and digitize it as, for example, 1 to 5.

[0046] Here, a configuration has been shown in which five levels of clothing (1 to 5) are quantified to detect the clothing levels of thin clothing 31, long-sleeved clothing 32, thick clothing 33, outerwear 34, and cold weather clothing 35, but the configuration is not limited to this and may be such that the clothing levels are quantified and detected in multiple levels, such as three levels (1 to 3) or ten levels (1 to 10).

[0047] In addition, the seat belt 24 may be marked with multiple lines, a one-dimensional barcode, a two-dimensional code, or the like, and the amount of clothing worn by the driver 21 may be detected by capturing images of these markings using a driver monitoring camera in the driver information acquisition unit 10. The amount of clothing worn by the driver 21 may be detected based on the amount of the seat belt 24 pulled out by the electric seat belt tensioner 15. In this case, the electric seat belt tensioner 15 serves as a detection device for detecting the amount of clothing worn by the occupant.

[0048] The registration information storage unit 13 stores air conditioner setting information for each driver 21. As shown in Fig. 8 and Fig. 9, the air conditioner setting information stores a base characteristic map 25 and a personalized characteristic map 26, which are characteristic data for controlling the air conditioner unit 6 to a set temperature Pt in response to outside air temperature data Tr and clothing level data CLr.

[0049] 8 is an example of the initial base characteristic map 25. When the driver 21 is not registered in the user registration information, that is, when the driver 21 has no riding history, this base characteristic map 25 is read into the main ECU 2. Then, the vehicle air conditioning system 1 controls the driving of the air conditioning unit 6 based on the set temperature Pt of the outside air temperature data Tr that includes the detected current outside air temperature T in the initial base characteristic map 25.

[0050] Furthermore, when the driver 21 has a riding history and, for example, the user ID of the driver 21 is registered in the user registration information, the personalized characteristic map 26 of the user ID of the driver 21 shown in Fig. 9 is read into the main ECU 2. Note that the personalized characteristic map 26 in Fig. 9 is also an example. In other words, the base characteristic map 25 of Figure 8 and the personalized characteristic map 26 of Figure 9 are not limited in range and classification of the outside temperature data Tr and clothing level data CLr, and the setting temperature Pt of the air conditioning unit 6 for the outside temperature data Tr and clothing level data CLr.

[0051] The vehicle air conditioning system 1 controls the driving of the air conditioning unit 6 based on the set temperature Pt corresponding to the clothing level CL and the outside air temperature data Tr in the personalized characteristic map 26 for the user ID corresponding to the driver 21. The personalized characteristic map 26 is assigned a different user ID for each different detected driver 21, and is stored in the registration information storage unit 13 as air conditioning setting information of the user registration information.

[0052] The vehicle air conditioning system 1 configured as above executes a control routine that sequentially performs steps S shown in the flowcharts of FIGS. 10 and 11 when the driver 21 gets into the vehicle and the ignition is turned on or the engine is started.

[0053] First, the vehicle air conditioning system 1 detects the driver 21 who is an occupant (S1). The main ECU 2 detects (recognizes) the occupant from image data of the driver 21 captured by the driver information acquisition unit 10, and proceeds to step S2.

[0054] The vehicle air conditioning system 1 detects the outside air temperature T (S2). The main ECU 2 detects the current air temperature outside the vehicle (outside air temperature T) input from the outside air temperature sensor 7, and proceeds to step S3.

[0055] The vehicle air conditioning system 1 detects environmental information (S3). The main ECU 2 detects current environmental information such as date and time, vehicle position, altitude, etc. from the locator unit 4, etc., and proceeds to step S4. The main ECU 2 stores these various types of environmental information in the registration information storage unit 13.

[0056] The vehicle air conditioning system 1 calculates the clothing level CL of the driver 21 (S4). The main ECU 2 senses the amount of clothing of the driver 21 from the image data of the driver information acquisition unit 10, calculates the numerically converted clothing level CL, and proceeds to step S5.

[0057] The vehicle air conditioning system 1 determines whether or not there is user registration information for the driver 21 (passenger) (S5). The main ECU 2 determines whether or not the driver 21 is registered in the user registration information based on the result of the matching of the driver 21 by the driver matching unit 12.

[0058] In step S5, if the driver 21 is registered in the user registration information in the registration information storage unit 13 (step S5: YES), the vehicle air conditioning system 1 proceeds to step S6 and executes personalized air conditioning control (S6) as shown in Fig. 11. This personalized air conditioning control will be described later. That is, it is determined that the driver 21 has a history of riding in a vehicle.

[0059] On the other hand, in step S5, if the driver 21 is not registered in the user registration information in the registration information storage unit 13 (step S5: NO), the vehicle air conditioning system 1 proceeds to step S7 and registers a new user ID of the driver 21 (S7). That is, the main ECU 2 determines that the driver 21 has never ridden a vehicle, and registers (stores) the user registration information (user ID, etc.) required for face authentication by the driver matching unit 12 from the image data of the driver 21 in the registration information storage unit 13, and proceeds to step S8.

[0060] The vehicle air conditioning system 1 reads (S8) the initial base characteristic map 25. The main ECU 2 reads the initial base characteristic map 25 stored in the registration information storage unit 13, and proceeds to step S9.

[0061] The vehicle air conditioning system 1 refers to the set temperature Pt of the outside air temperature data Tr including the detected outside air temperature T (S9). The main ECU 2 refers to the set temperature Pt of the initial outside air temperature data Tr including the outside air temperature T detected in step S2 from the base characteristic map 25, and proceeds to step S10.

[0062] The vehicle air conditioning system 1 executes air conditioning control at the set temperature Pt (S10). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the temperature becomes the set temperature Pt referenced from the base characteristic map 25, and proceeds to step S11. That is, the main ECU 2 causes the regeneration user determination unit 14 to output a regeneration instruction signal to the air conditioning control unit 5 to drive and control the air conditioning unit 6 to the set temperature Pt. As a result, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle interior (cabin) becomes the set temperature Pt.

[0063] The vehicle air conditioning system 1 generates a new personalized characteristic map 26 (S11). The main ECU 2 changes the initial base characteristic map 25 to the personalized characteristic map 26 for the driver 21, and proceeds to step S12. The newly generated personalized characteristic map 26 for the driver 21 is stored in the registration information storage unit 13 as air conditioner setting information of the user registration information.

[0064] Specifically, the initial base characteristic map 25 of Fig. 7 is rewritten, and a personalized characteristic map 26 for the driver 21 of Fig. 8 is generated and stored in the registration information storage unit 13. That is, this personalized characteristic map 26 is included in the user registration information of the newly registered driver 21, and is stored in the registration information storage unit 13 as air conditioner setting information corresponding to the driver 21.

[0065] The vehicle air conditioning system 1 determines whether the set temperature Pt has been changed (S12). The main ECU 2 determines whether the driver 21 has changed the set temperature Pt of the air conditioning unit 6 using the manual temperature setting portion 16.

[0066] In step S12, if the set temperature Pt has been changed (step S12: YES), the vehicle air conditioning system 1 executes air conditioning control at the changed set temperature Ct (S13). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the set temperature becomes the set temperature Ct, and proceeds to step S14. That is, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle compartment becomes the set temperature Ct.

[0067] In step S14, the vehicle air conditioning system 1 learns the outside air temperature T, the clothing level CL, and the changed setting change temperature Ct, rewrites the personalized characteristic map 26 (S14), returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0068] Here, the setting temperature Pt of the outside air temperature data Tr of the air conditioning unit 6, which includes the current outside air temperature T, and the clothing level data CLr, which includes the clothing level CL, is rewritten to the setting change temperature Ct in the personalized characteristic map 26. In this way, the personalized characteristic map 26 for the driver 21 is changed and stored (registered) in the registration information storage unit 13.

[0069] In addition, in step S12, if the set temperature Pt has not been changed (step S12: NO), the vehicle air conditioning system 1 returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0070] Next, a control routine shown in FIG. 11 will be described which sequentially performs each step S of the personalized air conditioning control in step S6.

[0071] First, the vehicle air conditioning system 1 reads the personalized characteristic map 26 of the driver 21 (S21). The main ECU 2 reads the personalized characteristic map 26 of the driver 21 detected in step S1 from the registration information storage unit 13, and proceeds to step S22.

[0072] The vehicle air conditioning system 1 refers to the clothing level data CLr of the outside air temperature data Tr including the outside air temperature T (S22). The main ECU 2 refers to the clothing level data CLr of the outside air temperature data Tr including the outside air temperature T detected in step S2 from the personalized characteristic map 26, and proceeds to step S23.

[0073] The vehicle air conditioning system 1 compares the clothing level CL of the occupant with the clothing level data CLr (S23). The main ECU 2 compares the clothing level CL of the driver 21, who is the occupant, calculated in step S4 with the clothing level data CLr referenced from the personalized characteristic map 26 in step S23, and proceeds to step S24.

[0074] The vehicle air conditioning system 1 determines whether the clothing level CL of the occupant is the clothing level data CLr (S24). The main ECU 2 determines whether the clothing level CL of the driver 21, who is the occupant, calculated in step S4 is included in the clothing level data CLr referenced from the personalized characteristic map 26.

[0075] In step S24, if the clothing level CL is within the clothing level data CLr (step S24: YES), the vehicle air conditioning system 1 refers to the set temperature Pt of the clothing level data CLr (S25). The main ECU 2 refers to the outside air temperature data Tr including the outside air temperature T detected in step S2 and the set temperature Pt of the clothing level data CLr for that outside air temperature data Tr from the personalized characteristic map 26, and proceeds to step S26.

[0076] The vehicle air conditioning system 1 executes air conditioning control at the referenced set temperature Pt (S26). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the temperature becomes the set temperature Pt referenced from the personalized characteristic map 26, and proceeds to step S27. That is, the main ECU 2 causes the regeneration user determination unit 14 to output a regeneration instruction signal to the air conditioning control unit 5 to drive and control the air conditioning unit 6 to the set temperature Pt. As a result, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle cabin becomes the set temperature Pt.

[0077] The vehicle air conditioning system 1 determines whether the set temperature Pt has been changed (S27). The main ECU 2 determines whether the driver 21 has changed the set temperature Pt of the air conditioning unit 6 using the manual temperature setting portion 16.

[0078] In step S27, if the set temperature Pt has been changed (step S27: YES), the vehicle air conditioning system 1 executes air conditioning control for the changed set temperature Ct, similar to step S13 (S28). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the set temperature becomes the set temperature Ct, and proceeds to step S29. That is, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle compartment becomes the set temperature Ct.

[0079] As in step S14, the vehicle air conditioning system 1 learns the outside air temperature T, the clothing level CL, and the set change temperature Ct changed by the driver 21, rewrites the personalized characteristic map 26 (S29), returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0080] Here again, the setting temperature Pt of the outside air temperature data Tr of the air conditioning unit 6, which includes the current outside air temperature T, and the clothing level data CLr, which includes the clothing level CL, is rewritten to the setting change temperature Ct in the personalized characteristic map 26. In this way, the personalized characteristic map 26 for the driver 21 is changed and stored (registered) in the registration information storage unit 13.

[0081] In addition, in step S27, if the set temperature Pt has not been changed (step S27: NO), the vehicle air conditioning system 1 returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0082] In step S24, if the clothing level CL is not the clothing level data CLr (step S24: YES), the vehicle air conditioning system 1 detects the biological information of the occupant (S30). The main ECU 2 detects the biological information of the occupant, the driver 21, such as the body temperature, pulse rate, heart rate, and sweating, acquired by the biological information acquisition device 11, and proceeds to step S31.

[0083] The vehicle air conditioning system 1 determines whether the clothing level CL is high (S31). The main ECU 2 determines whether the clothing level CL of the driver 21, who is an occupant, is higher than the clothing level data CLr of the outside air temperature data Tr including the outside air temperature T in the personalized characteristic map 26. That is, the main ECU 2 determines whether the clothing level CL of the driver 21 calculated in step S4 is higher than the clothing level data CLr of the outside air temperature data Tr including the detected outside air temperature T.

[0084] In step S31, if the clothing level CL is greater than the clothing level data CLr (step S31: YES), the vehicle air conditioning system 1 determines whether the body temperature of the occupant is high (S32). The main ECU 2 determines whether the body temperature, among the biological information of the driver 21 detected in step S30, is higher than, for example, 37.0° C. Note that the body temperature for this determination may be determined to be higher than the usual body temperature (normal temperature) of each driver 21.

[0085] In step S32, if the body temperature of the occupant is high (step S32: YES), the vehicle air conditioning system 1 executes air conditioning control at the set temperature Pt+α (S33). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the set temperature becomes Pt+α (for example, about Pt+3 to 5° C.), and the process proceeds to step S38 in FIG.

[0086] That is, the main ECU 2 causes the regeneration user determination unit 14 to output a regeneration instruction signal to the air conditioning control unit 5 to drive and control the air conditioning unit 6 to the set temperature Pt+α. As a result, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle cabin becomes the set temperature Pt+α.

[0087] Here, the driver 21 is wearing more clothes than usual and has a higher body temperature than usual, so it is suspected that he is in poor health and has a fever due to a cold or the like. Therefore, the vehicle air conditioning system 1 changes the temperature setting of the air conditioning unit 6 to a predetermined temperature α (for example, about +3 to 5°C) higher than the set temperature Pt to prevent the temperature inside the vehicle compartment from dropping too low. In addition, the vehicle air conditioning system 1 may control the drive of the air conditioning unit 6 so that the temperature inside the vehicle compartment does not fall below a predetermined temperature, for example, 23 to 25°C.

[0088] On the other hand, if the body temperature of the occupant is not high in step S32 (step S32: NO), the vehicle air conditioning system 1 executes air conditioning control at the set temperature Pt+β (S34). The main ECU 2 causes the air conditioning control unit 5 to control the air conditioning unit 6 to be at the set temperature Pt+β (for example, about Pt+2 to 3° C.), and returns to the determination routine of step S29 to repeat the subsequent processes.

[0089] That is, the main ECU 2 causes the regeneration user determination unit 14 to output a regeneration instruction signal for controlling the air conditioning unit 6 to the set temperature Pt+β to the air conditioning control unit 5. As a result, the air conditioning control unit 5 controls the air conditioning unit 6 to drive so that the temperature inside the vehicle cabin becomes the set temperature Pt+β.

[0090] Here, the driver 21 is dressed thicker than when he last rode in the vehicle given the outside air temperature T, but is not suspected to be in poor health and is not judged to have a fever due to a cold or the like. In other words, it is assumed that the driver 21 feels a little chilly inside the vehicle. Therefore, the vehicle air conditioning system 1 changes the temperature setting of the air conditioning unit 6 to a predetermined temperature β (for example, about +2 to 3°C) higher than the set temperature Pt.

[0091] In step S31, if the clothing level CL is not greater than the clothing level data CLr (step S31: NO), the vehicle air conditioning system 1 determines whether the occupant's body temperature, pulse rate, heart rate, sweating, etc. are high (a lot) (S35). The main ECU 2 determines whether the body temperature, pulse rate, heart rate, sweating, etc., of the biological information of the occupant, the driver 21, detected in step S30, are higher (a lot) than usual.

[0092] In step S35, if the body temperature, pulse rate, heart rate, amount of sweat, etc. are higher (more) than usual (step S35: YES), the vehicle air conditioning system 1 executes air conditioning control at the set temperature Pt-γ (S36). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the temperature becomes the set temperature Pt-γ (for example, about Pt-5° C.), and proceeds to step S38 in FIG.

[0093] That is, the main ECU 2 outputs a regeneration instruction signal from the regeneration user determination unit 14 to the air conditioning control unit 5 to drive and control the air conditioning unit 6 to the set temperature Pt-γ. As a result, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle cabin becomes the set temperature Pt-γ.

[0094] Here, it is assumed that the driver 21 is wearing less clothing than when he or she last rode in the vehicle, given the outside air temperature T, and that his or her body temperature, pulse rate, heart rate, amount of sweat, etc. are high (large), and that he or she has therefore rode in the vehicle after exercising. Therefore, the vehicle air conditioning system 1 changes the temperature setting of the air conditioning unit 6 to a predetermined temperature γ (for example, about -5°C) lower than the set temperature Pt.

[0095] On the other hand, if the body temperature, pulse rate, heart rate, sweat rate, etc. are not high (high) in step S35 (step S35: NO), the vehicle air conditioning system 1 executes air conditioning control at the set temperature Pt-ε (S37). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the temperature in the passenger compartment becomes the set temperature Pt-ε (for example, about Pt-2 to 3° C.), and proceeds to step S40 in FIG. 13. That is, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the passenger compartment becomes the set temperature Pt-ε.

[0096] That is, the main ECU 2 outputs a regeneration instruction signal from the regeneration user determination unit 14 to the air conditioning control unit 5 to drive and control the air conditioning unit 6 to the set temperature Pt-ε. As a result, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle cabin becomes the set temperature Pt-ε.

[0097] Here, it is assumed that the driver 21 feels a little hot because, given the outside air temperature T, he is wearing less clothing than when he last rode in the vehicle and his body temperature, pulse rate, heart rate, amount of sweat, etc. are the same as usual. Therefore, the vehicle air conditioning system 1 changes the temperature setting of the air conditioning unit 6 to a predetermined temperature ε (approximately -2 to 3°C) lower than the set temperature Pt.

[0098] In step S38, the vehicle air conditioning system 1 determines whether the set temperature Pt+α in step S33 or the set temperature Pt-γ in step S36 has been changed (S38). The main ECU 2 determines whether the driver 21 has changed the set temperature Pt+α or the set temperature Pt-γ of the air conditioning unit 6 using the manual temperature setting unit 16.

[0099] In step S38, if the set temperature Pt+α or the set temperature Pt-γ has been changed (step S38: YES), the vehicle air conditioning system 1 executes air conditioning control for the changed set temperature Ct, similar to steps S13 and S28 (S39). The main ECU 2 causes the air conditioning control unit 5 to drive and control the air conditioning unit 6 so that the set temperature becomes the set temperature Ct, and returns to detecting the outside air temperature T in step S2. That is, the air conditioning control unit 5 drives and controls the air conditioning unit 6 so that the temperature inside the vehicle cabin becomes the set temperature Ct.

[0100] In addition, in step S38, if the set temperature Pt+α or the set temperature Pt-γ has not been changed (step S38: NO), the vehicle air conditioning system 1 returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0101] In step S40, similar to steps S14 and S29, the vehicle air conditioning system 1 learns the outside air temperature T, the clothing level CL, and the set temperature Pt+β or set temperature Pt-ε changed by the driver 21, rewrites the personalized characteristic map 26 (S40), returns to the detection of the outside air temperature T in step S2, and repeats the subsequent processes.

[0102] Here again, the set temperature Pt in the outside air temperature data Tr of the air conditioning unit 6, which includes the current outside air temperature T, and the clothing level data CLr, which includes the clothing level CL, is rewritten to the set temperature Pt+β or the set temperature Pt-ε in the personalized characteristic map 26. In this way, the personalized characteristic map 26 for the driver 21 is changed and stored (registered) in the registration information storage unit 13.

[0103] As described above, in the case of a driver 21 who has previously ridden in a vehicle, the vehicle air conditioning system 1 of this embodiment controls the drive of the air conditioning unit 6 to the set temperature Pt corresponding to the outside air temperature data Tr and the clothing level data CLr of the personalized characteristic map 26, based on the outside air temperature T and the clothing level CL from the amount of clothing of the driver 21. In other words, if the amount of clothing does not change with respect to the outside air temperature T when the driver 21 previously ridden in the vehicle, the vehicle air conditioning system 1 reproduces the set temperature Pt at that time and controls the drive of the air conditioning unit 6.

[0104] In addition, for a driver 21 who has never driven a vehicle before, the vehicle air conditioning system 1 controls the driving of the air conditioning unit 6 at a set temperature Pt corresponding to the outside air temperature data Tr of the base characteristic map 25 based on the outside air temperature T. Then, the vehicle air conditioning system 1 generates the base characteristic map 25 as a personalized characteristic map 26 for the driver 21 and saves (stores) it.

[0105] Furthermore, when the driver 21 is suspected to be in poor physical condition or after exercise, the vehicle air conditioning system 1 changes the set temperature Pt to a predetermined temperature (Pt+α or Pt−γ) and controls the air conditioning unit 6.

[0106] Furthermore, when the clothing level CL of the driver 21 changes or the set temperature Pt is changed to a changed setting temperature Ct with respect to the clothing level data CLr of the outside temperature data Tr of the personalized characteristic map 26 containing the outside temperature T at that time, which is different from the previous time of riding, the vehicle air conditioning system 1 saves the personalized characteristic map 26 in which the clothing level data CLr including the changed clothing level CL and the set temperature Pt are rewritten to the changed setting temperature Ct. As a result, the vehicle air conditioning system 1 reproduces the set temperature Pt based on the rewritten personalized characteristic map 26 and drives and controls the air conditioning unit 6 the next time the driver 21 rides in the vehicle.

[0107] When the outside air temperature T during a past ride is equal to or lower than a certain value in the outside air temperature data Tr and the clothing level data CLr corresponding to this outside air temperature data Tr includes the clothing level CL of the driver 21, the vehicle air conditioning system 1 drives and controls the air conditioning unit 6 at the same set temperature Pt as during the past ride. In other words, when there is no change in the amount of clothing worn by the driver 21 relative to the outside air temperature T, the vehicle air conditioning system 1 drives and controls the air conditioning unit 6 at the set temperature Pt based on the same situation (scene) as during the past ride.

[0108] In addition, when the outside air temperature T is equal to or lower than a certain value in the outside air temperature data Tr for the past rides, but the clothing level CL of the driver 21 is large and the driver 21 is wearing thick clothes, the vehicle air conditioning system 1 determines that the driver feels a little chilly. Therefore, the vehicle air conditioning system 1 controls the drive of the air conditioning unit 6 to slightly weaken the cooling operation and slightly strengthen the heating operation by raising the set temperature Pt for the same situation (scene) as the past rides by a predetermined temperature β.

[0109] When the outside air temperature T is equal to or lower than a certain value in the outside air temperature data Tr compared to the past rides, but the clothing level CL of the driver 21 is small and the driver is wearing thin clothing, the vehicle air conditioning system 1 determines that the driver feels a little hot. Therefore, the vehicle air conditioning system 1 controls the drive of the air conditioning unit 6 to slightly increase the cooling power and slightly decrease the heating power by lowering the set temperature Pt for the same situation (scene) as the past rides by a predetermined temperature ε.

[0110] In this way, when the amount of clothing worn by the driver 21 relative to the outside air temperature T is different from when the driver 21 was previously in the vehicle, the vehicle air conditioning system 1 changes the set temperature of the air conditioning unit 6 to control the strength of heating and cooling. Depending on the situation of the outside air temperature T and the amount of clothing worn by the driver 21, the vehicle air conditioning system 1 may stop the air conditioning unit 6 and turn off the heating and cooling.

[0111] In addition, each time the driver 21 gets in the vehicle, the vehicle air conditioning system 1 learns the clothing level data CLr, which includes the clothing level CL that quantifies the amount of clothing worn by the driver 21 relative to the outside air temperature data Tr, which includes the outside air temperature T, and the set temperature Pt of the air conditioning unit 6, and rewrites (updates) and stores the personalized characteristic map 26 of the driver 21.

[0112] 10 to calculate the clothing level CL even if the driver 21 takes off thin clothes or puts on thick clothes while in the vehicle. Therefore, the vehicle air conditioning system 1 varies the set temperature Pt of the air conditioning unit 6 in response to the change in the amount of clothing of the driver 21.

[0113] Furthermore, when it is assumed from the body temperature in the driver's 21 biometric information that the driver 21 is in poor health or has a fever due to a cold or the like, the vehicle air conditioning system 1 controls the drive of the air conditioning unit 6 to raise the temperature by a predetermined temperature α above the set temperature Pt, and to reduce the temperature in the case of cooling or increase the temperature in the case of heating.

[0114] That is, the vehicle air conditioning system 1 prevents the temperature inside the vehicle compartment from being lowered too much. The vehicle air conditioning system 1 may change the direction of the air from the air conditioning unit 6 so that the driver 21 is not blown directly with air.

[0115] In addition, when the vehicle air conditioning system 1 assumes that the driver 21 has just exercised based on the driver's 21 biometric information such as body temperature, pulse, heart rate, and amount of sweat, it controls the operation of the air conditioning unit 6 to lower the temperature by a predetermined temperature γ below the set temperature Pt, and to increase the cooling power or decrease the heating power.

[0116] In this way, the vehicle air conditioning system 1 references the personalized characteristics map 26 stored for each driver 21 to determine the set temperature Pt of the air conditioning unit 6 based on the amount of clothing worn by the driver 21 in response to the outside air temperature T when the driver 21 previously got in the vehicle, and controls the driving of the air conditioning unit 6 to the set temperature Pt. In addition, the vehicle air conditioning system 1 learns the amount of clothing worn by the driver 21 in response to the outside air temperature T (clothing level CL) and the set temperature Pt of the air conditioning unit 6 each time the driver 21 gets in the vehicle, and rewrites (updates) the personalized characteristics map 26. In other words, the vehicle air conditioning system 1 sets the temperature inside the vehicle cabin to suit the preferences of the driver 21 in response to differences in clothing worn in response to the outside air temperature T.

[0117] As described above, the vehicle air conditioning system 1 is configured to change the temperature inside the vehicle compartment in consideration of the difference in clothing worn by the driver 21, the passenger, relative to the outside air temperature T when the passenger gets into the vehicle.

[0118] Furthermore, the main ECU 2 and the air conditioning control unit 5 each have a processor including a central processing unit (CPU), and storage devices such as a ROM and a RAM. Furthermore, all or part of the configuration of the multiple circuits of the processor may be implemented by software. For example, the CPU may read and execute various programs corresponding to the respective functions stored in the ROM. Furthermore, all or part of the functions of the processor may be implemented by logic circuits or analog circuits, and the processing of the various programs may be realized by electronic circuits such as an FPGA.

[0119] The invention described in the above embodiments is not limited to those embodiments, and various modifications can be made in the implementation stage without departing from the gist of the invention. Furthermore, each of the above embodiments includes inventions at various stages, and various inventions can be extracted by appropriate combinations of the disclosed constituent elements.

[0120] For example, if some of the constituent elements shown in each form are deleted, and the stated problem can be solved and the stated effect can be obtained, the configuration from which these constituent elements are deleted can be extracted as an invention. [Explanation of symbols]

[0121] 1. Vehicle air conditioning system 2...Main ECU (electronic control unit) 3…High-precision road map database (road map DB) 4…Locator unit 5…Air conditioning control unit 6...Air conditioning unit (automatic air conditioning unit) 7...Outside air temperature sensor 8…Room temperature sensor 9...Solar radiation sensor 10…Driver information acquisition section 11...Biometric information acquisition device 12...Driver verification section 13. Registration Information Storage Department 14...Playback user judgment unit 15...Electric seat belt tensioner 16…Manual temperature setting section 20…In-vehicle communication line 21...Driver (passenger / driver) 23…Driver's seat 24...Seat belt 25…Base characteristic map 26…Personalized trait map CL: clothing level CLr: Clothing level data Ct: Setting change temperature Pt...Set temperature T: Outside temperature Tr...Outside temperature data α, β, γ, ε...predetermined temperature

Claims

1. Air conditioning units, A temperature sensor for detecting the current outside temperature; A detection device for detecting an occupant; a storage unit for storing characteristic data generated for each occupant, the characteristic data being the clothing level data corresponding to the outside air temperature data and the set temperature of the air conditioning unit; a control means for calculating a clothing level of the occupant detected by the detection device, comparing the calculated clothing level with clothing level data corresponding to the outside air temperature data input from the temperature sensor, and controlling the air conditioning unit by referring to the characteristic data and the set temperature of the clothing level data including the clothing level; A vehicle air conditioning system comprising:

2. 2. The vehicle air conditioning system according to claim 1, wherein the control means learns, for each occupant, the clothing level data including the clothing level and the set temperature for the outside air temperature data of the characteristic data including the outside air temperature, and rewrites the characteristic data.

3. 3. The vehicle air conditioning system according to claim 1, wherein when the set temperature of the air conditioning unit is changed by the occupant, the control means learns the changed temperature as the set temperature and rewrites the characteristic data.

4. a biometric information acquisition device that acquires biometric information of the occupant and outputs the biometric information to the control means; The vehicle air conditioning system according to claim 1 or 2, characterized in that, when the inputted biometric information indicates that the occupant has a high body temperature, the control means changes the temperature setting to a first temperature that is a predetermined first temperature higher than the set temperature of the air conditioning unit, and when the occupant's body temperature, pulse rate, heart rate, etc. are high and he / she sweats a lot, the control means changes the temperature setting to a second temperature that is a predetermined second temperature lower than the set temperature of the air conditioning unit.

5. Air conditioning units, A temperature sensor for detecting the current outside temperature; A detection device for detecting an occupant; a memory for storing characteristic data generated for each passenger, the characteristic data being the clothing level data corresponding to the outside air temperature data and the set temperature of the air conditioning unit; a control unit which calculates a clothing level of the occupant detected by the detection device, compares the calculated clothing level with clothing level data corresponding to the outside air temperature data input from the temperature sensor, and controls the air conditioning unit by referring to the characteristic data and the set temperature of the clothing level data, the set temperature being included in the clothing level; A vehicle air conditioning system comprising:

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