JP3991690B2 - Vehicle air conditioner and program thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle air conditioner that automatically controls an air conditioning state in a passenger compartment based on control characteristics, and that learns passenger preference by correcting control characteristics based on air conditioning operation information set by the passenger.
[0002]
[Prior art]
Conventionally, in this type of vehicle air conditioner, one control characteristic is determined in advance, and the operation of the air conditioning control device is automatically controlled based on the control characteristic, and the blowing temperature, the air flow rate, the suction mode, the blowing In addition to automatically controlling the mode and the like, so-called learning control is performed in which control characteristics are corrected based on information on the air conditioning operation performed by the passenger.
[0003]
Japanese Laid-Open Patent Publication No. 9-210195 discloses a shift control device for an automatic transmission for a vehicle that best suits the driver's preference based on driving operation information of the driver among a plurality of shift maps stored in advance. It is described that a shift map is selected, and thereafter, shift control is performed based on the selected shift map.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional air conditioner, if the control characteristics that are the basis of learning control are far from the passenger's preference, many operations are required until the control characteristic matches the passenger's preference, There was a problem that it became slow to approach the control characteristics suitable for the passenger's preference.
[0005]
On the other hand, in the shift control device described in the above publication, the occupant's preference is almost realized with a small number of operations, but the shift map is stored in advance, and thus the occupant's preference is not completely realized. . Therefore, even if the technical idea described in the above publication is applied to an air conditioner, the passenger's preference cannot be realized completely.
[0006]
The present invention has been made in view of the above points. In a vehicle air conditioner that automatically controls an air-conditioning state based on control characteristics and corrects control characteristics based on air-conditioning operation information to learn passenger preference. The purpose is to perform air-conditioning control that matches the passenger's preference with a small number of operations.
[0019]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the control means for automatically controlling the air flow rate based on the air flow rate control characteristic for determining the air flow rate based on the target blow temperature of the air blown into the vehicle interior. and (31), the occupant of the operation and a blowing rate selector switch for setting the air volume of the desired (37), control means (31) operating the air volume selector switch set by the air volume switch (37) a moving vehicle air-conditioning system for correcting the air volume control characteristic based on the information, the control means (31), air blowing amount based on the operation information of the air volume selector switch in the period the number of operations of the air amount changeover switch is a predetermined number of times when correcting the control characteristics, air volume control operation number of air volume change-over switch is for a wide range of target air temperature in the air volume control characteristics than after expiration of the time is a predetermined number of times And correcting the sex.
[0020]
According to this, the operation amount of the air flow rate changeover switch immediately after purchasing the vehicle is reflected in learning under a wide range of conditions (that is, a wide range of the target blow temperature in the air flow rate control characteristics), and thereafter the operation amount is limited under a narrow condition. Because it is reflected in the learning, it is possible to make the air flow control characteristics that roughly match the passenger's preference very early, and it is possible to complete the passenger's preference quickly with fewer operations by learning partly thereafter. The air flow rate control characteristics that match
[0023]
In the second aspect of the invention, the air volume is automatically controlled based on the air volume control characteristic for determining the air volume based on the target air temperature of the air blown into the passenger compartment, and the air volume set by the occupant Operation of the air flow rate changeover switch during a period in which the airflow rate changeover switch is operated a predetermined number of times in the computer of the vehicle air conditioner that corrects the airflow rate control characteristics based on the operation information of the changeover switch and learns the passenger's preference when correcting the air volume control characteristic based on the information, the number of operations air volume changeover switch to correct the air volume control characteristic for a wide range of target air temperature in the air volume control characteristics than after expiration of the time is a predetermined number of times A procedure is executed.
[0024]
The second aspect corresponds to the first aspect , and can control the operation of the vehicle air conditioner having the function and effect of the first aspect .
[0025]
In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
FIG. 1 shows an overall system configuration of a vehicle air conditioner according to a first embodiment of the present invention. This vehicle air conditioner automatically controls the operation of an air conditioning control device based on stored control characteristics. The air temperature, the air flow rate, the suction mode, the air blowing mode, and the like are automatically controlled, and the stored control characteristics are corrected, that is, learned based on the occupant's air conditioning operation.
[0027]
An inside / outside air switching box 11 as a suction mode switching means is arranged on the most upstream side of the air flow of the air conditioning unit 10 constituting the indoor unit of the vehicle air conditioner. The inside / outside air switching box 11 is connected to the outside air inlet 11a and the inside air. While having the introduction port 11b, the inside / outside air switching door 12 is rotatably installed in the inside / outside air switching box 11.
[0028]
The inside / outside air switching door 12 is arranged at a branch point between the outside air introduction port 11a and the inside air introduction port 11b and is driven by the actuator 12a to switch the air introduced into the air conditioning unit 10 between the inside air and the outside air, or between the inside air and the outside air. Adjust the mixing ratio of outside air.
[0029]
A blower 13 as a blowing means is disposed downstream of the inside / outside air switching box 11. The blower 13 sucks air into the inside / outside air switching box 11 and blows it to the downstream side of the air conditioning unit 10. And a centrifugal blower fan 15 connected to the rotating shaft. An evaporator 16 and a heater core 17 are provided downstream of the blower fan 15.
[0030]
The evaporator 16 is a heat exchanger for cooling, and is combined with a compressor or the like driven by a vehicle engine (not shown) to constitute a refrigeration cycle. The low-pressure refrigerant in the interior absorbs heat from the air and evaporates to cool the air. To do. The heater core 17 is a heat exchanger for heating, and cooling water (hot water) of a vehicle engine (not shown) circulates inside, and heats the air using the engine cooling water as a heat source.
[0031]
On the upstream side of the heater core 17, an air mix door 18 as a blown air temperature adjusting means is rotatably provided, and the opening degree of the air mix door 18 is adjusted by being driven by an actuator 18a. Thereby, the ratio of the air passing through the heater core 17 and the air bypassing the heater core 17 is adjusted, and the temperature of the air blown out into the passenger compartment is adjusted.
[0032]
At the most downstream of the air conditioning unit 10, a defroster door 20 that opens and closes a defroster (DEF) outlet 19, a face door 22 that opens and closes a face (FACE) outlet 21, and a foot door 24 that opens and closes a foot (FOOT) outlet 23. Is provided.
[0033]
Each of these doors 20, 22, and 24 constitutes a blow mode switching means, and is driven by an actuator 25 to open and close the blow outlets 19, 21, and 23. Level mode, foot mode, foot differential mode, defroster mode, etc. are set. Then, the temperature-adjusted air is blown out into the passenger compartment from the blow-out opening that opens in accordance with each blowing mode.
[0034]
The air-conditioning control device 30 has a microcomputer 31 as control means, and the amount of blown air is adjusted by adjusting the applied voltage (blower voltage) of the blower motor 14 via the drive circuit 32 based on the output signal from the microcomputer 31. It is controlled by adjusting the rotation speed. The other actuators 12a, 18a, and 25 are also controlled via the drive circuit 32 based on the output signal from the microcomputer 31.
[0035]
The microcomputer 31 has a central processing unit (CPU), a ROM, a RAM, a standby RAM, an I / O port, an A / D conversion unit, and the like (not shown) and is well known per se.
[0036]
The standby RAM is a RAM for storing (backing up) a learned value of passengers even when an ignition switch (hereinafter referred to as IG) for intermittently driving the vehicle engine is off, and IG is off. Also, power is supplied directly from the on-board battery without going through the IG. Further, a backup power source (not shown) is provided for supplying power to the microcomputer 31 for a short time even when the electrical connection between the microcomputer 31 and the battery is interrupted.
[0037]
An operation signal is input to the microcomputer 31 from an air conditioning operation unit 33 installed in the vehicle interior instrument panel. The air conditioning operation unit 33 includes an AUTO switch 34 for setting an automatic control state of the air conditioner, an inside / outside air changeover switch 35 for manually setting the inside / outside air suction mode, and a blowout for manually setting the blowout mode. A mode changeover switch 36, an airflow changeover switch 37 for manually setting the airflow of the blower 13, a temperature setting switch 38 for setting a passenger's favorite temperature, and the like are provided.
[0038]
The inside / outside air changeover switch 35, the blowout mode changeover switch 36, the air flow rate changeover switch 37, and the temperature setting switch 38 all correspond to operation means for setting a desired air conditioning state by the occupant's operation. And the microcomputer 31 performs what is called learning control which correct | amends a control characteristic based on the air-conditioning operation information which the passenger | crew set with those switches 35-38.
[0039]
The air volume switching switch 37 is specifically composed of an air volume up switch 37a and an air volume down switch 37b. Each time the air volume up switch 37a is pressed, the blower voltage (applied voltage to the drive motor 14) is set. A signal that increases one level (0.25 volt) is output, and the air volume down switch 37b outputs a signal that decreases the blower voltage by one level (0.25 volt) each time it is pressed.
[0040]
In addition, the microcomputer 31 receives signals from various sensors that detect environmental conditions (air conditioning heat load) that affect the air conditioning state in the passenger compartment. Specifically, an inside air temperature sensor 39 that detects an air temperature (inside air temperature) TR in the vehicle interior, an outside air temperature sensor 40 that detects an air temperature outside the vehicle interior (outside air temperature) TAM, and an amount of solar radiation TS that enters the vehicle interior. A solar radiation sensor 41 for detecting, an evaporator temperature sensor 42 for detecting an evaporator temperature (specifically, an evaporator blown air temperature) TE, a water temperature sensor 43 for detecting an engine water temperature TW circulating in the heater core 17, and a rear seat. Each signal from a seat sensor 44 or the like as a rear seat occupant detection means for detecting the presence or absence of a rear seat occupant is input to the microcomputer 31 via the respective level conversion circuits 45, and these signals are output from the microcomputer 31 to the A / D-converted and read. The signal from the temperature setting switch 38 is also level-converted by the level conversion circuit 45 and input to the microcomputer 31.
[0041]
In addition, a car navigation device 50 is connected to the microcomputer 31. The car navigation device 50 includes a monitor screen (not shown) that displays the current position of the host vehicle, and is configured to give a learning start instruction to be described later on the monitor screen. The learning start instruction information is output to the microcomputer 31. It has come to be.
[0042]
FIG. 2 is an overall flowchart of the present invention executed by the microcomputer 31, and the control of FIG. First, initial values such as various conversions and flags are set in step S1. In the next step S2, operation signals of various switches 34 to 38 of the air conditioning operation unit 33, sensor detection signals from various sensors 39 to 44, and signals from the car navigation device 50 are read.
[0043]
In the next step S3, the target blowing temperature TAO of the air blown into the vehicle interior is calculated by the following formula 1 based on the set temperature TSET read in step S2, the sensor detection signal, and the like. Here, TAO is the blown air temperature necessary for maintaining the passenger compartment at the set temperature TSET regardless of changes in environmental conditions.
[0044]
[Expression 1]
TAO = KSET × TSET−KR × TR−KAM × TAM−KS × TS + C where KSET, KR, KAM, and KS are coefficients, C is a constant, and TSET, TR, TAM, and TS are the set temperature and internal air, respectively. Temperature, ambient temperature, solar radiation.
[0045]
Next, it progresses to step S4 and the blower voltage which determines ventilation volume is determined based on said TAO. Here, since there are individual differences in the air volume desired by the occupant, it is difficult to uniformly determine the air volume. Therefore, in the present embodiment, by correcting the blower voltage calculation map as the air flow control characteristic based on the passenger's manual operation related to the air flow, the blower voltage calculation map learning the passenger's preference is obtained. Yes.
[0046]
In addition, a plurality of blower voltage calculation maps are provided in advance as learning bases, and occupant preferences are estimated from information on manual operation related to air flow during a predetermined period, and one of the blower voltage calculation maps is selected. Then, learning is performed based on the selected blower voltage calculation map. These will be described in detail later.
[0047]
Next, it progresses to step S5 and the opening degree SW of the air mix door 18 is calculated based on TAO, TE, and TW. Next, it progresses to step S6 and calculates the introduction ratio of inside air and outside air by the inside / outside air switching door 12 based on TAO. Next, in step S7, the blowing mode by the blowing mode doors 20, 22, 24 is calculated based on TAO. Next, in step S8, the control of the compressor is determined so that the evaporator temperature TE is maintained at the target evaporator temperature.
[0048]
Next, the process proceeds to step S9, and the various control signals determined in the above steps S4 to S8 are added to the blower motor 24, the actuators 12a, 18a, 25 and the compressor via the drive circuit 32, and the rotational speed of the blower motor 24. It controls the operation of each actuator 12a, 18a, 25 and compressor. After the process of step S9, the process returns to step S2 to repeat the above process.
[0049]
3 and 4 exemplify specific processing for determining the blower voltage in step S4 of FIG. 2, and will be described in detail below.
[0050]
First, one of the blower voltage calculation maps of patterns (1) to (6) shown in step S160 is selected based on manual operation information relating to the air flow rate during a predetermined period by the processing of FIG. Further, the blower voltage calculation maps of patterns (1) to (6) are prepared for each blowing mode. These blower voltage calculation maps correspond to the base air flow rate control characteristics that are the basis of learning, and are prepared in advance before the occupant first operates the air flow rate changeover switch 37.
[0051]
Incidentally, pattern (1) is a standard air flow rate characteristic, and pattern (2) is a relatively high air flow rate characteristic in which the air flow rate in the intermediate temperature range of TAO is larger than pattern (1). Pattern (3) is the air flow characteristic of the highest air volume in which the air volume in the temperature range of 10 to 39 ° C. is higher than that in pattern (2), and pattern (4) is the air flow rate in the middle temperature range of TAO. The air flow rate is a relatively low air flow rate characteristic where the air volume is smaller than that of the pattern (1), and the pattern (5) is the air flow rate of the lowest air volume where the air flow rate in the whole temperature range of the TAO is less than that of the pattern (1) The pattern {circle around (6)} is a characteristic of the air flow rate with a slightly lower air volume when the air flow rate in the low temperature range of the TAO is smaller than that of the pattern (1).
[0052]
In FIG. 3, in step S110, it is determined whether or not the monitor screen of the car navigation device 50 is an air conditioning initial setting screen. If it is the air conditioning initial setting screen, step S110 becomes YES and proceeds to step S120.
[0053]
In step S120, it is determined whether or not an instruction to start learning is given. If the occupant gives an instruction to start learning, step S120 becomes YES and the process proceeds to step S130.
[0054]
In step S130, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S130 becomes YES and the process proceeds to step S140.
[0055]
In step S140, information on the operation point instructed to change by the air flow rate changeover switch 37, that is, air conditioning operation information related to the air flow rate is stored. Specifically, the blower voltage set by the blower amount changeover switch 37 and the TAO at that time are stored.
[0056]
Next, it progresses to step S150, and after step S150 is started, step S150 becomes NO until the change operation of ventilation volume is performed 10 times, and the process of step S130 and step S140 is repeated. Then, when the operation for changing the blowing amount is performed 10 times, step S150 becomes YES, and the process proceeds to step S160.
[0057]
In step S160, a blower having a pattern that is estimated to be closest to the passenger's preference from the blower voltage calculation maps of patterns (1) to (6) based on the 10 operating point information stored in step S140. Select the voltage calculation map.
[0058]
This selection is performed as follows. The circles shown in step S160 are the 10 operation points stored in step S140. For example, the operation point X is closest to the patterns (2) and (3), and next to the patterns (1) and (6). Since the points are close, 10 points are allocated to patterns (2) and (3), and 5 points are allocated to patterns (1) and (6). Select a high pattern blower voltage calculation map. Then, the subsequent partial learning is performed based on the selected blower voltage calculation map.
[0059]
On the other hand, when step S110 and step S120 are NO, that is, when the air conditioning initial setting screen is not displayed, or when there is no learning start instruction, normal partial learning is performed in step S125.
[0060]
FIG. 4 shows the process of partial learning and blower voltage calculation. With the process of FIG. 4, the blower voltage calculation map is corrected based on the manual operation of the occupant, and the blower voltage is determined based on TAO.
[0061]
In FIG. 4, in step S210, it is determined whether or not the current blowing mode is the face (FACE) mode. If the blowing mode is the face mode, step S210 is YES and the process proceeds to step S211. In step S211, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S211 becomes YES and the process proceeds to step S212.
[0062]
In step S212, the blower voltage calculation map in the face mode shown in FIG. 5A is corrected, that is, learned, based on the operation of the air flow rate changeover switch 37. This blower voltage calculation map is a blower voltage calculation map in the face mode selected in step S160 of FIG. Next, the process proceeds from step S212 to step S213, and the blower voltage is calculated based on the TAO from the blower voltage calculation map in the face mode. If step S211 is NO, the process immediately proceeds to step S213, and the blower voltage is calculated.
[0063]
If step S210 is NO, the process proceeds to step S220. In step S220, it is determined whether the current blowing mode is the bi-level (B / L) mode. If the blowing mode is the bi-level mode, step S220 is performed. It becomes YES and progresses to step S221. In step S221, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S221 becomes YES and the process proceeds to step S222.
[0064]
In step S222, the blower voltage calculation map in the bi-level mode shown in FIG. 5B is corrected, that is, learned, based on the operation of the air flow rate switch 37. This blower voltage calculation map is a blower voltage calculation map in the bi-level mode selected in step S160 in FIG. Next, the process proceeds from step S222 to step S223, and the blower voltage is calculated based on the TAO from the blower voltage calculation map in the bi-level mode. If step S221 is NO, the process immediately proceeds to step S223, and the blower voltage is calculated.
[0065]
If step S220 is NO, the process proceeds to step S230. In step S230, it is determined whether or not the current blowing mode is the foot (FOOT) mode. If the blowing mode is the foot mode, step S230 is YES and step S231 is performed. Proceed to In step S231, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S231 becomes YES and the process proceeds to step S232.
[0066]
In step S232, the blower voltage calculation map in the foot mode shown in FIG. 5C is corrected, that is, learned based on the operation of the air flow rate changeover switch 37. This blower voltage calculation map is a blower voltage calculation map in the foot mode selected in step S160 of FIG. Next, the process proceeds from step S232 to step S233, and the blower voltage is calculated based on TAO from the blower voltage calculation map in the foot mode. If step S231 is NO, the process immediately proceeds to step S233, and the blower voltage is calculated.
[0067]
If NO in step S230, the process proceeds to step S240. In step S240, it is determined whether the current blowing mode is the foot differential (F / D) mode. If the blowing mode is the foot differential mode, step S240 is YES. And the process proceeds to step S241. In step S241, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S241 becomes YES and the process proceeds to step S242.
[0068]
In step S242, the blower voltage calculation map in the foot differential mode shown in FIG. 5D is corrected, that is, learned, based on the operation of the air flow rate switch 37. This blower voltage calculation map is a blower voltage calculation map in the foot differential mode selected in step S160 of FIG. Next, the process proceeds from step S242 to step S243, and the blower voltage is calculated based on TAO from the blower voltage calculation map in the foot differential mode. If step S241 is NO, the process immediately proceeds to step S243, and the blower voltage is calculated.
[0069]
If step S240 is NO, the process proceeds to step S251. Incidentally, when the process proceeds to step S251 from the mode determination results in steps S210 to S240, the current blowing mode is the defroster (DEF) mode. In step S251, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S251 becomes YES and the process proceeds to step S252. .
[0070]
In step S252, the blower voltage calculation map in the defroster mode shown in FIG. 5E is corrected, that is, learned, based on the operation of the air flow rate changeover switch 37. This blower voltage calculation map is a blower voltage calculation map in the defroster mode selected in step S160 of FIG. Next, the process proceeds from step S252 to step S253, and the blower voltage is calculated based on TAO from the blower voltage calculation map in the defroster mode. If step S251 is NO, the process immediately proceeds to step S253, and the blower voltage is calculated.
[0071]
As described above, by correcting the blower voltage calculation map corresponding to each blowing mode in steps S212, S222, S232, S242, and S252 based on the operation of the blowing amount changeover switch 37, the blast amount of the occupant is adjusted. Preference is learned.
[0072]
Here, an example of a specific learning method of the blower voltage calculation map in step S212 and the like will be described with reference to FIG. A characteristic A in FIG. 6A is a blower voltage calculation map selected in step S160 in FIG. 3. When the occupant operation has not been learned about the air flow rate, the blower is determined according to the characteristic in FIG. 6A. A voltage is calculated.
[0073]
When the first operation of the air flow rate changeover switch 37 is performed by the occupant, the operation of the occupant is performed when the blower voltage is at a level (maximum air flow Hi) in the characteristic A of FIG. When the blower voltage is lowered to the level of the operating point 1, the occupant operation is learned, and the sloped portion of the characteristic A is moved to the left side (low temperature side of TAO) in FIG. Translate. A solid line B in FIG. 6A shows the control characteristics after learning the first passenger operation.
[0074]
Next, FIG. 6B shows learning by the second occupant operation. In the control characteristic B after the first learning, when the blower voltage is at the b level (small air volume close to the minimum air volume Lo), When the blower voltage is raised to the level of the operating point 2 by the occupant's operation, the inclination θ of the inclined portion of the control characteristic is changed so as to pass through both the operating point 1 and the operating point 2 this time. A solid line C in FIG. 6B shows the control characteristics after learning the second passenger operation.
[0075]
Next, FIG. 6C shows learning by the third occupant operation. In the control characteristic C after the second learning, the blower voltage is c level (the air flow rate at the operation point 2 and the minimum air flow rate Lo). When the blower voltage is lowered to the Lo level of the minimum airflow at the operating point 3 by the occupant's operation, the inclination θ of the inclined portion in the control characteristic C after the second learning is now obtained. Then, the operating point 1, the operating point 2 and the operating point 3 are changed to a slope that approximates the least square. Therefore, the control characteristic after learning the third passenger operation is as shown by a solid line D in FIG. For occupant operations four or more times, each operation point is changed to a slope that approximates the least square.
[0076]
In the present embodiment, air conditioning operation information for a predetermined period is controlled in an air conditioner that automatically controls the air flow rate based on the blower voltage calculation map and corrects the blower voltage calculation map based on the air conditioning operation information to learn the passenger's preference. Therefore, the base blower voltage calculation map is selected from a plurality of blower voltage calculation maps, so that the blower voltage calculation map almost matches the passenger preference when a predetermined period has elapsed. In addition, since the learning is continued after the elapse of a predetermined period, a blower voltage calculation map that perfectly matches the passenger's preference can be obtained.
[0077]
In addition, since the learning is performed based on the base blower voltage calculation map that reflects the passenger's preference, the occupant can be operated faster with fewer operations than when learning based on the blower voltage calculation map determined in advance as in the past. Blower voltage calculation map that perfectly matches the user's preference.
[0078]
(Second Embodiment)
In the present embodiment, the operation amount of the air conditioning operation for a predetermined period is reflected in learning under a wide condition, and thereafter, the operation amount is reflected in learning under a narrow condition. In the present embodiment, the processing shown in FIG. 3 of the first embodiment is changed as shown in FIG. 7 in order to perform the above control. Other points are the same as in the first embodiment.
[0079]
In FIG. 7, in step S310, it is determined whether or not the monitor screen of the car navigation device 50 is an air conditioning initial setting screen. If it is the air conditioning initial setting screen, step S310 becomes YES and proceeds to step S320.
[0080]
In step S320, it is determined whether or not an instruction to start learning is given. If the occupant gives an instruction to start learning, step S320 is YES and the process proceeds to step S330. In the following steps, learning is performed based on a pre-stored standard blower voltage calculation map (corresponding to pattern (1) in FIG. 3).
[0081]
In step S330, the number of times of operating the air flow rate changeover switch 37 after the instruction to start learning is determined. If the number of operations is 1 to 10, step S330 becomes YES and the process proceeds to step S340. In step S340, the blower voltage calculation map is corrected, that is, learned for the TAO range of the outside air temperature TAM ± 40 ° C. when the air flow rate changeover switch 37 is operated.
[0082]
When step S330 is NO, it progresses to step S350, and if the frequency | count of operation after a learning start instruction | indication is 11-20 times, step S350 will become YES and will progress to step S360. In step S360, the blower voltage calculation map is corrected for the TAO range of the outside air temperature TAM ± 20 ° C. when the air flow rate changeover switch 37 is operated.
[0083]
If step S350 is NO, the process proceeds to step S370, and if the number of operations after the learning start instruction is 21 to 30, step S370 becomes YES and the process proceeds to step S380. In step S380, the blower voltage calculation map is corrected for the TAO range of the outside air temperature TAM ± 10 ° C. when the air flow rate changeover switch 37 is operated.
[0084]
If step S370 is NO, that is, if the number of operations after the learning start instruction is 31 times or more, the process proceeds to step S390. In step S390, the blower voltage calculation map is corrected for the TAO range of the outside air temperature TAM ± 5 ° C. when the air flow rate changeover switch 37 is operated.
[0085]
On the other hand, when step S310 and step S320 are NO, that is, when the air conditioning initial setting screen is not displayed, or when there is no learning start instruction, normal partial learning is performed in step S325.
[0086]
In the present embodiment, the air conditioning operation for a predetermined period immediately after the purchase of the vehicle reflects the amount of operation in the learning under a wide range of conditions, and thereafter the amount of operation is reflected in the learning under a narrow condition. Thus, a blower voltage calculation map that roughly matches the occupant's preference can be obtained quickly by a small number of operations.
[0087]
(Third embodiment)
In this embodiment, when there is a great change in the preference of the blower voltage calculation map, the blower voltage calculation map that has been selected so far is cleared by an occupant instruction. In this embodiment, the process shown in FIG. 8 is added to the process of the first embodiment in order to perform the above-described control, and a clear switch (clearing means) that issues an instruction to clear the selected blower voltage calculation map ( (Not shown). Other points are the same as in the first embodiment.
[0088]
In FIG. 8, in step S410, it is determined whether or not the occupant has operated the clear switch to clear the selected blower voltage calculation map. Incidentally, the clear switch is operated when there is a great change in taste, for example, by changing the hairstyle or changing from glasses to contact lenses. If the clear switch is operated, step S410 is YES, and the process proceeds to step S420.
[0089]
In step S420, the blower voltage calculation map that has been selected so far is cleared, and a blower voltage calculation map (see FIG. 3) of pattern (1), which is a standard air flow rate characteristic, is selected. Then, the subsequent blower voltage is determined based on the blower voltage calculation map of pattern (1), and when the blower amount changeover switch 37 is operated, learning is performed based on the blower voltage calculation map of pattern (1). .
[0090]
According to the present embodiment, when there is a significant change in the preference of the blower voltage calculation map, the selected base blower voltage calculation map is cleared, and learning is performed again based on the newly selected base blower voltage calculation map. As a result, it is possible to quickly obtain control characteristics that suit the passenger's preference.
[0091]
(Fourth embodiment)
In this embodiment, until the base blower voltage calculation map is determined, learning is performed based on the standard blower voltage calculation map, and when the base blower voltage calculation map is determined, the fact is notified to the passenger. Is. In the present embodiment, the processing shown in FIG. 3 of the first embodiment is changed as shown in FIG. 9 in order to perform the above control. Other points are the same as in the first embodiment.
[0092]
In FIG. 9, in step S510, it is determined whether or not the monitor screen of the car navigation device 50 is an air conditioning initial setting screen. If it is the air conditioning initial setting screen, step S510 becomes YES and proceeds to step S520.
[0093]
In step S520, it is determined whether or not an instruction to start learning is given. If the occupant gives an instruction to start learning, step S520 becomes YES and the process proceeds to step S530.
[0094]
In step S530, it is determined whether or not the occupant has manually changed the airflow rate by operating the airflow rate changeover switch 37. If the airflow rate has been manually changed, step S530 becomes YES and the process proceeds to step S540.
[0095]
In step S540, information on the operation point instructed to change by the air flow rate changeover switch 37, that is, air conditioning operation information related to the air flow rate is stored. Specifically, the blower voltage set by the blower amount changeover switch 37 and the TAO at that time are stored. Next, the process proceeds to step S550, where normal partial learning is performed on the blower voltage calculation map (see FIG. 3) of the pattern (1) which is a standard air flow rate characteristic.
[0096]
Next, it progresses to step S560, step S560 is set to NO until the change operation of ventilation volume is performed 10 times after learning is started, and the process of step S530-step S550 is repeated.
[0097]
In this way, during a predetermined period at the beginning of learning, learning is tentatively obtained by learning based on the blower voltage calculation map of the pattern (1) corresponding to the standard blower voltage calculation map.
[0098]
Next, if the operation for changing the blowing rate is performed 10 times, step S560 becomes YES and the process proceeds to step S570. In step S570, the blower voltage calculation map in which the normal partial learning is performed in step S550 is cleared.
[0099]
Next, in step S580, based on the 10 operating point information stored in step S540, the blower voltage calculation map of patterns (1) to (6) is estimated to be closest to the passenger's preference. Select the blower voltage calculation map for the pattern. Incidentally, this selection method is the same as that in step S160 of the first embodiment. In the case of this example, the blower voltage calculation map of the pattern (2), which is the air flow characteristic of a relatively high air volume, is selected. Then, the subsequent partial learning is performed based on the selected blower voltage calculation map.
[0100]
Next, in step S590, using the car navigation device 50 corresponding to the notification unit, the fact that the relatively high air flow rate characteristic has been selected as the blower voltage calculation map serving as a base for subsequent partial learning is used. The occupant is notified by screen display and voice.
[0101]
By the way, if the blower voltage calculation map that becomes the base of the subsequent partial learning is selected, the control may be slightly different from the control so far, but the passenger may feel uncomfortable. Can be prevented.
[0102]
On the other hand, when step S510 and step S520 are NO, that is, when the air conditioning initial setting screen is not displayed, or when there is no learning start instruction, normal partial learning is performed in step S525.
[0103]
(Other embodiments)
In the above-described embodiment, a blower voltage calculation map is selected from a plurality of patterns of blower voltage calculation maps prepared in advance on the basis of information on manual operation related to the air flow rate during a predetermined period, and based on the selected blower voltage calculation map. Although learning was performed, based on the blower voltage calculation map of the standard pattern, the blower voltage calculation map that seems to be optimal for that occupant was calculated based on the information of manual operation related to the air flow during the predetermined period However, learning may be performed based on the calculated blower voltage calculation map.
[0104]
Moreover, although the example which determines the blower voltage calculation map as an air flow control characteristic based on the manual operation information of a predetermined period was shown in the said embodiment, the inside / outside air suction mode control characteristic, the blowing mode control characteristic, and the blowing As for the temperature control characteristics, a plurality of patterns of control characteristics may be prepared in advance, and a control characteristic that seems to be optimal for the occupant may be selected based on manual operation information for a predetermined period.
[0105]
The present invention can also be applied to a vehicle air conditioner that independently controls the air conditioning of a plurality of air conditioning zones in a vehicle interior, and each of a plurality of air conditioning zones is determined from a plurality of blower voltage calculation maps prepared in advance. In addition, the blower voltage calculation map may be selected based on manual operation information for a predetermined period.
[Brief description of the drawings]
FIG. 1 is an overall system diagram of a first embodiment of the present invention.
FIG. 2 is a flowchart showing the entire air conditioning control of the first embodiment.
FIG. 3 is a flowchart showing control of a main part of the first embodiment.
FIG. 4 is a flowchart showing control of a main part of the first embodiment.
FIG. 5 is a control characteristic diagram of a blower voltage according to the first embodiment.
FIG. 6 is an explanatory diagram of a method for correcting a blower voltage control characteristic according to the first embodiment.
FIG. 7 is a flowchart showing control of main parts of the second embodiment.
FIG. 8 is a flowchart showing control of a main part of the third embodiment.
FIG. 9 is a flowchart showing control of main parts of the fourth embodiment.
[Explanation of symbols]
31 ... Microcomputer (control means),
35 to 38 ... switch (operation means),
50: Car navigation device (input means).

Claims (2)

Control means (31) for automatically controlling the air flow based on the air flow control characteristic for determining the air flow based on the target air temperature of the air blown into the passenger compartment, and setting the desired air flow by the occupant's operation An air flow rate changeover switch (37), and the control means (31) corrects the air flow rate control characteristic based on operation information of the air flow rate changeover switch set by the air flow rate changeover switch (37) . In the air conditioner,
Wherein said control means (31), when the number of operation times of the air volume change-over switch to correct the air volume control characteristic based on the operation information of the air volume selector switch in the period is a predetermined number of times, the air volume change-over switch An air conditioner for a vehicle, wherein the air flow control characteristic is corrected for a wider range of the target blowing temperature in the air flow control characteristic than after a period in which the number of operations is a predetermined number . The air volume is automatically controlled based on the air volume control characteristic for determining the air volume based on the target air temperature of the air blown into the passenger compartment, and the air volume switching switch set by the occupant is operated based on the operation information. In the computer of the vehicle air conditioner that corrects the air flow control characteristic and learns the passenger's preference,
A period in which the number of operations of the air flow amount switch is a predetermined number of times when the air flow control characteristic is corrected based on the operation information of the air flow amount switch in a period in which the air flow amount switch is operated in a predetermined number of times The program which performs the procedure which correct | amends the said air flow control characteristic about the wide range of the said target blowing temperature in the said air flow control characteristic rather than after progress of this.

Images