JP3546505B2 - Vehicle air conditioner - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an air conditioner for a vehicle that automatically air-conditions a vehicle cabin, which is called a so-called auto air conditioner.
[0002]
[Conventional technology and its problems]
Conventionally, a vehicle air conditioner called a so-called auto air conditioner calculates an optimum blow temperature in accordance with a signal obtained from a sensor that detects a thermal environment such as a room temperature sensor and an outside air temperature sensor, and determines an optimum blow temperature based on the blow temperature. The air-conditioning air was automatically blown into the vehicle interior according to the control characteristics provided.
However, there is an individual difference in the thermal sensation, and an occupant who does not like the control characteristics has to change to a desired setting by a manual switch. In addition, since the manual switch is generally fixed at a fixed setting, it is necessary to operate the switch each time the surrounding environment changes to change the setting again. That is, the reduction in the operation amount, which is the aim of the automatic air conditioner, is not realized for such a passenger.
[0003]
For example, as disclosed in Japanese Patent Application Laid-Open No. 3-54015, an apparatus has been devised which sequentially corrects the control characteristics according to the occupant's feeling. That is, according to this conventional example, if the occupant manually changes the reference point set in the control characteristics of the auto air conditioner by manual operation of the fan or the like, the reference point is changed according to the degree of change. Are sequentially corrected.
[0004]
However, in the vehicle air conditioner such as this conventional example, since the manual operation is similarly handled and corrected regardless of the presence or absence of the occupant, it may not be said that the correction is accurately performed based on the occupant's air conditioning preference. occured.
For example, there is a case where the so-called cool-down is performed after the engine is started because the temperature in the vehicle compartment is high at the beginning of the air conditioning in the summer, and the vehicle is left outside the vehicle compartment while being left idling using the maximum capacity. Then, it is assumed that the room temperature has dropped and the vehicle has been re-ridden to return to the normal setting. In the conventional example, when such a usage pattern is frequently used, even if the occupant prefers a weak setting, the occupant learns to blow the conditioned air with the maximum capacity up to the room temperature stable region. As a result, if the vehicle is started immediately after riding after being left in the scorching sun, the maximum air volume is blown out to the stable room temperature range, and the control is too strong for an occupant who does not want a high air volume. In other words, in the case of an occupant who easily uses the so-called pre-air-conditioning in which the passenger compartment is air-conditioned before traveling, the control characteristics are not corrected as desired in the conventional example.
[0005]
Therefore, it is conceivable to determine whether or not to perform pre-air conditioning based on the presence or absence of an occupant, and to separately change the method of correcting the control characteristics when the occupant is present and when the occupant is not present. May not always be possible and could not be determined simply by the presence or absence of an occupant.
[0006]
Further, since the compressor of the air conditioner is driven by the engine, the engine speed during idling is generally increased by a certain value while the compressor clutch is on. However, since there is no possibility of running when there is no driver, there is no problem even if the engine speed is reduced, and fuel efficiency is saved. However, occupants who prioritize air-conditioning performance during pre-air-conditioning have a strong demand to increase the cooling speed by increasing the engine speed more than usual when the heat load is high. Therefore, the engine speed during idling cannot be reduced uniformly.
[0007]
SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioner for a vehicle that can be adapted to the air conditioning setting preference immediately after the engine is started, whether or not there is an occupant, to both the occupant's favorite air conditioning pattern and the improvement of fuel efficiency. Is to provide.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention is to calculate a target air-conditioning condition based on thermal environment information including a detected room temperature, an outside air temperature and a solar radiation amount input from a thermal environment information input means and a set room temperature, Has air-conditioning air automatic setting means for driving the air-conditioning air supply device so as to maintain the target air-conditioning condition and air-conditioning the vehicle interior, and outputs air-conditioning device control information including the operating state of the compressor to the engine control device. Applied to vehicle air conditioners.
And a time setting means for counting the time elapsed from the time when the engine is started; a manual setting means capable of changing settings of the set room temperature and the air blowing state by the air-conditioning air supply device by manual operation of an occupant; An occupant presence / absence determining means for determining the presence / absence of an occupant in the seat; and a pre-air-conditioning mode for judging whether or not a pre-air-conditioning mode for air-conditioning the vehicle interior before traveling based on the thermal environment information, the elapsed time, and the occupant existence information A mode setting means, a manual setting information storage means for storing thermal environment information, setting change contents, the elapsed time, occupant presence / absence information, pre-air conditioning mode information when an occupant operates the manual setting means; The difference between the setting characteristic of the manual setting information history stored in the storage means in the pre-air-conditioning mode and the setting characteristic in other cases, and the difference stored in the manual setting information storage means Pre-air-conditioning priority calculating means for calculating an air-conditioning priority at the time of pre-air-conditioning of the occupant based on the pre-air-conditioning time characteristic calculated from the history of the pre-air-conditioning mode maintenance time; An automatic air-conditioning air setting correction means for correcting the air-conditioning air automatic setting means based on setting information in a pre-air-conditioning mode stored in the manual setting information storage means when the mode is determined; When the air conditioning air automatic setting means is corrected by the correction means, the idling rotation speed correction amount of the engine is controlled by the engine control in accordance with the air conditioning priority at the time of preliminary air conditioning calculated by the preliminary air conditioning priority calculation means. Idle speed correction means for outputting to the device.
Further, the prior air conditioning priority calculating means of the vehicle air conditioner according to claim 2, wherein the difference between the setting characteristics at the time of the pre-air-conditioning mode and the setting characteristics other than at the time of the pre-air-conditioning mode stored in the manual setting information storage means. The air-conditioning priority is increased as the air-conditioning capacity is increased, and as the characteristic of the pre-air-conditioning time stored in the manual setting information storage means is longer.
The pre-air-conditioning mode determination means of the vehicle air conditioner according to claim 3, wherein the room temperature in the thermal environment information is equal to or less than a predetermined value calculated according to a room temperature history at the time of re-boarding of the occupant after the pre-air conditioning. Is to cancel the pre-air-conditioning mode regardless of the presence or absence of an occupant.
[0009]
[Action]
According to the vehicle air conditioner of the present invention, the difference between the setting when the occupant is seated and the setting when the occupant is not seated during the preliminary air conditioning immediately after the engine start is calculated from the history of the past occupant setting information. According to the magnitude of the difference, the degree (air conditioning priority) of whether or not the owner prioritizes the air conditioning performance at the time of preliminary air conditioning is calculated. Then, after the next use, the set temperature, air volume, and engine idle speed at the time of preliminary air conditioning are corrected based on the air conditioning priority. As a result, in the case of an owner who does not give priority to air conditioning at the time of preliminary air conditioning, the air conditioning capacity is set to be weak, the idle speed of the engine is reduced, and the fuel efficiency is improved. In addition, if the owner prioritizes air conditioning during pre-air conditioning, the idling speed is set high until the vehicle interior temperature reaches the target temperature, so the compressor speed increases and the cooling capacity increases, It becomes possible to quickly approach the target temperature.
In the vehicle air conditioner according to the second aspect, the air conditioning priority, which is a measure of whether the air conditioning capacity is prioritized with respect to the fuel efficiency at the time of preliminary air conditioning, is set at the time of normal running based on the past setting history of the air conditioner. Compare the difference between the pre-air-conditioning setting and the pre-air-conditioning setting. Set large. For this reason, the owner who takes a long pre-air-conditioning time without getting on the vehicle by greatly reducing the set room temperature during the pre-air-conditioning in the summer has a higher air-conditioning priority. As a result, it is possible to accurately reproduce the setting of the owner at the time of the preliminary air conditioning.
According to the vehicle air conditioner of the third aspect, the pre-conditioning end condition is determined based on the room temperature history at the time when the occupant re-boarded in the past. Become.
[0010]
【Example】
-1st Example-
In the first embodiment, roughly, as shown in FIG. 1, an air conditioner main body, thermal environment information input means, an auto switch as a main switch of the air conditioner, a control device, a manual setting means, Correction means.
The air conditioner main body 1 is configured by sequentially connecting a blower unit 2, a cooling unit 3, and a heater unit 4.
The blower unit 2 is provided with an outside air inlet 5 and an inside air inlet 6, an intake door 7 for opening and closing the two inlets 5, 6, an actuator 8 for rotating the intake door 7, and an air conditioner. A blower fan 9 for generating wind and a blower fan motor 10 for rotating the fan 9 are arranged.
An evaporator 11 is arranged in the cooling unit 3, and a low-temperature refrigerant from an expansion valve (not shown) connected and configured to a refrigeration cycle (not shown) is supplied to the evaporator 11 by a pipe 12, and after cooling the conditioned air, the refrigerant is not shown in the drawing. Return to the compressor. Further, the heater unit 4 is provided with an air mix door 13, further provided with an actuator 14 for rotating the air mix door 13, and a heater core 15. Engine cooling water is circulated from the pipe 27 to the heater core 15 to heat the conditioned air passing through the heater core 15.
A defroster duct 16, a vent duct 17, and a foot duct 18 are communicated with the downstream end of the heater unit 4, and open / close doors 19, 20, and 21 are installed at base ends of the ducts 16, 17, and 18, respectively. Further, actuators 22, 23, 24 for the respective opening / closing doors are provided. A vent grill 25 is provided at an end of the vent duct 17, and a louver fin 26 for setting a desired wind direction is installed.
[0011]
In addition, a controller 30 for controlling an air-conditioning intake mode, a flow rate, a blowing mode and a temperature is provided, and an automatic air-conditioning switch 31 for automatically controlling a room temperature, a blowing mode to be described later, an inside / outside air introduction switching mode, a flow rate setting, and a compressor ON. / OFF switch 32, room temperature sensor 33 for measuring the thermal environment of the vehicle, outside temperature sensor 34, solar radiation sensor 35, room temperature setting device 36, air volume setting device 37, inside / outside air introduction changeover switch 38, when blowing conditioned air into the vehicle compartment A vent mode switch 39 that switches between a vent blow mode that blows near the front passenger's chest, a foot blow mode that blows near the front passenger's feet, and a bi-level blow mode that blows from both of them, to remove fogging of the front window. Front defroster switch 0, the output value of the rear defroster switch 41 for removing the fogging of the rear window is input, and after the calculation, the actuator 8 is instructed to open and close as an intake mode setting, and a voltage is applied to the blower fan motor 10 as an air volume setting. The opening and closing instructions are given to the door actuators 22, 23 and 24 in the blowout mode, and the opening degree is given to the air mix door actuator 14 as the blowout temperature control. The air-conditioning display section 42 displays the target room temperature, the outlet mode, the rear defroster, the air volume, and the like.
[0012]
The room temperature sensor 33 detects the current ambient temperature in the vehicle compartment as a detected room temperature Tic, and outputs an amount of electricity corresponding to the detected room temperature Tic to the controller 30. The outside air temperature sensor 34 detects the current atmosphere temperature outside the vehicle compartment as a detected outside air temperature Tamb, and outputs an electric quantity according to the detected outside air temperature Tamb to the controller 30. The solar radiation sensor 35 outputs an electric quantity according to the received solar radiation Qsun to the controller 30.
The engine control device 43 electronically controls the engine, and receives information such as ON / OFF of a compressor and an idling speed correction value from the air conditioning controller 30.
The occupant sensors 44a to 44d detect the presence or absence of an occupant, and output binary data indicating whether or not the occupant is seated in each seat to the controller 30.
[0013]
2 to 4 and 8 are flowcharts showing the operation of the first embodiment, and FIGS. 5 to 7 are explanatory diagrams. The operation of the first embodiment will be described with reference to these drawings.
FIG. 2 shows a main flow for controlling the air conditioner.
In step 201, it is determined whether or not an ignition key as an engine start switch is turned on. When the ignition key is turned on, the process proceeds to step 202. In step 202, a timer for measuring an elapsed time from the start of the engine is reset and started. In step 203, it is determined according to the flowchart shown in FIG. This determination method will be described later. In the following step 204, if it is the pre-air conditioning mode, the process proceeds to step 205; otherwise, the process proceeds to step 208.
[0014]
In the pre-air-conditioning mode, it is determined in step 205 whether or not there is any occupant other than the driver's seat occupant. In step 206, the setting in the pre-air-conditioning mode to be used as the setting for the later air-conditioning control is read from the occupant manual setting storage memory and set. The setting in the pre-air-conditioning mode is changed and stored according to the usage pattern at the time of the previous pre-air-conditioning, and is calculated by the learning process in step 212. Specifically, the pre-air-conditioning mode set temperature average values Tptc, pre and the air volume change average values Vfan, pre are read, and set temperature correction values Tptc, cor, and air volume correction values Vfan, cor used in the subsequent air conditioning control, respectively. set. In step 207, the engine idling rotational speed correction value ΔREV at the time of pre-air conditioning determined in a learning process described later is read and output to the engine control device.
On the other hand, when there is an occupant other than the driver's seat occupant, in step 208, the normal air conditioning setting correction amount is read from the memory and set to the set temperature correction amount Tptc, cor and the air flow correction value Vfan, cor.
[0015]
In step 209, it is determined whether or not the manual setting has been changed within one cycle. If so, the process proceeds to step 210, where the change pattern, the thermal environment information of the room temperature, the outside air temperature, the amount of solar radiation, and the elapsed time t are stored. Store in the manual change storage buffer.
In step 211, it is determined whether or not the ignition key has been turned off within one cycle. If the ignition key has been turned off, the learning process of step 212 is performed, and the process returns to the start waiting loop of step 201, where the ignition key is turned off. If not, the process proceeds to step 213 to perform air conditioning control. The learning process and the air conditioning control will be described later.
[0016]
Next, the details of the preliminary air-conditioning mode determination process executed in step 203 of FIG. 2 will be described with reference to FIG.
In step 301, it is determined whether or not a pre-air-conditioning release flag, which will be described later, is turned on. If the flag is turned on, the process proceeds to step 311 to determine the normal mode, and ends the routine. If the preliminary air-conditioning release flag is turned off, the processing after step 302 is performed.
In step 302, it is determined whether or not the initial room temperature Tic0 in the first processing is larger than a predetermined value Td0. If it is larger, the processing from the next step is performed. Here, it means that it is determined whether or not the initial state is a state in which the pre-air-conditioning is to be performed, and only in the case where the pre-air-conditioning is to be performed, the pre-air-conditioning mode is determined.
In step 303, it is determined whether or not the current room temperature Tic is larger than a predetermined value Td1, and if it is larger, the process proceeds to the next step, and if smaller, the process proceeds to step 308. Here, it is determined whether the current state is a state in which the pre-air-conditioning is to be performed, and only when the current state is the state in which the pre-air-conditioning is to be performed, the pre-air-conditioning mode is determined. In step 304, the presence or absence of a driver's seat occupant is determined by the occupant sensor, and in step 305, the presence or absence of the occupant and the elapsed time t are stored in the occupant presence / absence history memory.
[0017]
In step 306, it is determined whether or not the air conditioning mode is the pre-air-conditioning mode when the step is reached. If the air-conditioning mode is the pre-air-conditioning mode, the process proceeds to step 307; In step 307, it is determined from the occupant presence / absence history memory whether or not the occupant has occupied and the occupant continuation time has exceeded a predetermined value after entering the pre-air-conditioning mode or whether or not the occupant has occupied and changed the setting. If the determination is YES, the process proceeds to step 308. If the determination is NO, the process exits the routine while determining in step 312 that the air conditioning mode has been set in advance. If you get off quickly in a short time after re-boarding, the air conditioning should be continued.In such a case, to prevent the mode from being switched, set the settings when the occupant does not get on again after getting on again. If the air conditioning is cancelled, the pre-air conditioning should be stopped. In such a case, the pre-air conditioning is set to end.
[0018]
In steps 308 and 309, processing at the time of termination of the pre-air conditioning mode is performed. First, in step 308, the time during which the pre-air-conditioning mode is continued is calculated from the occupant presence / absence history memory and the current elapsed time t, and is stored in the storage buffer as the pre-air-conditioning time tpre to be used in later learning processing. In step 309, a pre-air-conditioning release flag indicating that pre-air conditioning has been performed and ended is turned on.
In step 310, it is determined from the occupant presence / absence history memory whether or not the duration during which there is no driver's occupant is equal to or greater than a predetermined value in a case other than the pre-air conditioning mode, and if the determination is YES, the process proceeds to step 312; Proceed to step 311.
In steps 311, 312, the air conditioning mode is determined to be the normal mode or the preliminary air conditioning mode, respectively, and the process returns to the main routine.
[0019]
Next, the learning process executed in step 212 of FIG. 2 will be described with reference to FIG. In step 401, a time average value of the set room temperature and the air volume change width within the normal mode time in this use is calculated and stored in the corresponding area of the manual setting information storage memory. In step 402, it is determined whether or not the pre-air-conditioning mode has been executed in this use, based on whether or not the pre-air-conditioning release flag has been turned on. If the pre-air-conditioning release flag has been turned on, the processing of steps 403 to 405 is performed. If not, the process proceeds to step 406.
If the preliminary air-conditioning release flag is ON, the pre-air-conditioning time tpre is stored in the preliminary air-conditioning time history memory in step 403. In the following step 404, a time average value of the set room temperature and the air volume change width in the pre-air-conditioning mode is calculated and stored in the corresponding area of the manual setting information storage memory. In step 405, among the pre-air-conditioning mode data in the manual setting information storage memory, the settings stored in the area updated in step 404 this time are averaged, and the average set temperatures Tset, pre, and the average air volume change width during pre-air conditioning are averaged. Calculate and store Vfan, pre.
[0020]
In step 406, the same processing as in step 405 is performed for the normal mode, and the average set room temperature Tset0 and the average air volume change width Vfan0 are calculated and stored. In step 407, for the updated storage area, the air-conditioning priority Kpo at the time of preliminary air-conditioning is calculated based on the difference between the manually set value at the time of preliminary air-conditioning and the normal setting and the data stored in the pre-air-conditioning time history memory. First, the difference between the manually set value at the time of pre-air conditioning and the value at the time of normal operation is calculated by the following equation.
(Equation 1)
ΔTop = Tset, pre−Tset0−Kvt (Vfan, pre−Vfan0)
Here, Kvt is a positive constant for converting the air volume change set value into the set temperature change allowance.
Next, the value of the pre-air-conditioning time tpre stored in the pre-air-conditioning time history memory is statistically processed, an average value tpre, m and its standard deviation σ are calculated, and tpre, r is represented as a representative value of the pre-air-conditioning time tpre history. Is calculated by the following equation.
(Equation 2)
tpre, r = tpre, m + σ
FIG. 5 shows these relationships.
[0021]
Subsequently, the air-conditioning priority Kpo at the time of preliminary air-conditioning is calculated by fuzzy inference using the values of ΔTop and tpre, r. That is, fuzzy rules,
[Equation 3]
If ΔTop = A AND tpre, r = B then Kpo = C
In FIG. 6, the fuzzy numbers of the antecedent parts A and B and the consequent part C and the form of the membership function are set as shown in the table and the membership function shown in FIG. The air conditioning priority Kpo is determined by executing fuzzy inference using the MAX-MIN method for each fuzzy rule.
When the air-conditioning priority Kpo is determined in step 407, the idling rotation speed correction width ΔREV at the time of pre-air-conditioning in the current environment area is calculated from the relationship between Kop and the idling rotation speed correction width shown in FIG. It is stored in the corresponding area.
[0022]
Next, the air conditioning control executed in step 213 in FIG. 2 will be described with reference to FIG. In step 801, the set temperature is corrected based on the setting set in step 206 or 208 in FIG. That is, the control set temperature Tptc is calculated by adding the set temperature correction amount Tptc, cor calculated from the past setting history of the occupant to the set temperature. As a result, the set temperature is corrected in accordance with the past set preferences of the occupant, and even when the same set temperature is displayed, the set temperature to be controlled is changed, and the control is adapted to the occupant's preferences.
In step 802, the target outlet temperature Tof, which is a comprehensive index of the heat load used in the subsequent steps, is calculated from the input values of each sensor and the set temperature. Subsequently, in steps 803 to 806, the air mix door opening, the outlet mode, the inlet door opening, and the blower fan voltage are calculated based on Tof. When the blower fan voltage is calculated, the values are set in step 206 or 208. The corrected air volume correction amount Vfann, cor is corrected in addition to the air volume calculated from Tof. As a result, the relationship between Tof and the air volume set at the time of factory shipment can be changed based on the past setting history of the occupant, and the air conditioning setting adapted to the occupant's preference becomes possible. In step 807, the operation value is output to each actuator, and the process returns to the main flow.
[0023]
Thus, for example, assuming a passenger who frequently uses pre-air conditioning in the summer, if there is no occupant, pre-air conditioning is automatically performed according to the degree of past setting, and a comfortable environment is realized when re-riding. . In addition, for occupants who make more use of the pre-air-conditioning setting than the normal setting method and take a longer pre-air-conditioning time, the engine speed is increased during pre-air-conditioning until the room temperature falls below a predetermined value. For occupants who prioritize performance and tend to set lower than the normal setting method even during pre-air conditioning, it is possible to improve fuel efficiency by lowering the engine speed from the normal idling speed. Become.
[0024]
-2nd Example-
In the second embodiment, as shown in FIGS. 9 and 10, steps 908 and 1005 are added after step 307 in FIG. 3 and step 404 in FIG. 4 of the first embodiment, respectively. Are different from those of the first embodiment.
First, in step 903, the determination condition Td1 ′ calculated from the past end room temperature history is used as the determination condition of the end room temperature of the pre-air conditioning mode. The calculation of Td1 ′ is performed in step 1005 of the learning process shown in FIG.
In step 908, the room temperature Tic is stored as the pre-air-conditioning end room temperature Tic, pre used in step 1005.
Further, by adding step 908, it is known where to proceed when the determination is NO in steps 902 and 903, and the process proceeds to step 909 in step 902 and to step 908 in step 903.
In step 1005 of FIG. 10, the pre-air-conditioning end room temperature Tic, pre is stored in the history memory, and statistical processing is performed to calculate the average value Tic, pre, m (see FIG. 11). Then, the pre-air conditioning end condition Td1 'from the next control is calculated by the following equation using the pre-air conditioning end condition initial value Td1 and Tic, pre, m.
(Equation 4)
Td1 ′ = Td1 + α (Tic, pre, m−Td1) (0 <α <1)
As described above, according to the second embodiment, since the value calculated from the room temperature history at the end of the past is used as the end condition of the pre-air-conditioning, at the most frequent time point according to the usage pattern of the occupant. Since learning is performed so that the pre-air conditioning is completed, unnecessary excessive cooling at the time of the pre-air conditioning can be prevented.
[0025]
In the configuration of the above embodiment, the room temperature sensor 33, the outside air temperature sensor 34, and the solar radiation sensor 35 set the thermal environment information input means, the blower fan 9 and the blower fan motor 10 set the conditioned air supply device, and the controller 30 set the conditioned air automatically. Means, timing means, pre-air-conditioning mode determination means, manual setting information storage means, pre-air-conditioning priority calculation means, air-conditioning automatic setting correction means and idle speed correction means. The occupant sensors 44a to 44d and the controller 30 constitute occupant presence / absence determination means.
[0026]
【The invention's effect】
As described above, according to the present invention, from the history of the past occupant setting information, the difference between the setting when the occupant is seated and the setting when the occupant is not seated during pre-air conditioning immediately after the engine is started is calculated, Whether or not the occupant prioritizes air-conditioning performance at the time of preliminary air-conditioning according to the magnitude of the difference is determined by providing a measure of air-conditioning priority. Then, since the next use, the set temperature, air volume, and engine idle speed at the time of preliminary air conditioning are corrected based on this air conditioning priority, so that for an occupant who does not give priority to air conditioning at the time of preliminary air conditioning, The air conditioning capacity is set to be weaker, the engine idling speed is reduced, and this helps to improve fuel efficiency. In addition, in the case of occupants who value the air conditioning capacity during pre-air conditioning, the idling speed is increased until the cabin temperature reaches the target temperature, so the compressor speed increases and the cooling capacity increases, and the target temperature is quickly approached. It becomes possible.
In addition, the air conditioning priority, which is a measure of whether air conditioning capacity is prioritized over fuel efficiency during pre-air conditioning, is used to compare the settings for normal driving and the settings for pre-air conditioning based on the past air conditioner setting history. By comparing the differences, the air conditioning priority is set higher as the pre-air conditioning becomes larger in the direction of increasing the air conditioning capacity, and the air conditioning priority is set higher as the maintenance time of the pre-air conditioning becomes longer. For this reason, the occupants who set the room temperature significantly lower during pre-air conditioning in summer and take a longer pre-air-conditioning time without getting on the vehicle have a higher air-conditioning priority. As a result, it is possible to accurately reproduce the settings of the occupant during the pre-air conditioning.
Furthermore, since the pre-conditioning end condition is determined based on the room temperature history at the time when the occupant re-boarded in the past, the pre-air conditioning with little waste according to the occupant's usage pattern can be performed.
In other words, the present invention provides an air conditioner that automatically controls the thermal environment in a vehicle cabin, in which the air conditioning setting preference immediately after the engine is started is adapted to the occupant's favorite air conditioning pattern both with and without an occupant. Thus, it is possible to provide a control device that also takes into consideration improvement in fuel efficiency.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of an embodiment.
FIG. 2 is a flowchart showing a main program of air conditioning control.
FIG. 3 is a flowchart illustrating a preliminary air conditioning mode determination routine.
FIG. 4 is a flowchart showing a learning processing routine.
FIG. 5 is a diagram showing a relationship between pre-air-conditioning time and frequency.
FIG. 6 is a diagram illustrating fuzzy inference for calculating the air conditioning priority.
FIG. 7 is a diagram illustrating a relationship between an air conditioning priority and an idling rotation speed correction amount.
FIG. 8 is a flowchart showing an air conditioning control routine.
FIG. 9 is a flowchart illustrating a pre-air-conditioning mode determination routine according to a second embodiment.
FIG. 10 is a flowchart illustrating a learning processing routine according to a second embodiment.
FIG. 11 is a diagram illustrating a relationship between a pre-air conditioning end time and a frequency according to the second embodiment.
[Explanation of symbols]
1 Air conditioner body
2 Blower unit
3 Cooling unit
4 Heater unit
5 outside air inlet
6 shy air inlet
7 Intake door
8,14,22,23,24 Actuator
9 blower fan
10 Blower fan motor
11 Evaporator
12,27 piping
13 Air mix door
15 Heater core
16 Defroster duct
17 Vent duct
18 foot duct
19, 20, 21 Opening / closing door
25 Vent grill
26 louver fins
30 Controller
31 Auto air conditioner switch
32 Compressor ON / OFF switch
33 Room temperature sensor
34 Outside temperature sensor
35 solar radiation sensor
36 Room temperature setting device
37 Air volume setting device
38 Inside / outside air introduction switch
39 Vent mode switch
40 Front defroster switch
41 Rear defroster switch
43 Engine control device
44a-44d occupant sensor

Claims (3)

The target air-conditioning condition is calculated based on the detected room temperature, outside air temperature, thermal environment information including the amount of solar radiation, and the set room temperature input from the thermal environment information input means, and the air-conditioning air supply device is controlled so that the air-conditioning condition maintains the target air-conditioning condition. An air conditioning system for a vehicle that has an air conditioning air automatic setting unit that drives and air-conditions a vehicle interior, and outputs air conditioning device control information including an operating state of a compressor to an engine control device.
A timing means for measuring the time elapsed since the start of the engine;
Manual setting means capable of changing settings of the set room temperature and the air blowing state by the conditioned air supply device by manual operation of an occupant,
An occupant presence / absence determining means for determining the occupant presence / absence of the driver's seat and other seats,
Pre-air-conditioning mode determination means for determining whether or not a pre-air-conditioning mode for air-conditioning the vehicle interior before traveling based on the thermal environment information, the elapsed time, and the occupant presence / absence information,
When the occupant operates the manual setting means, thermal environment information, setting change details, the elapsed time, occupant presence / absence information, manual setting information storage means for storing pre-air conditioning mode information,
The difference between the setting characteristics in the pre-air-conditioning mode of the manual setting information history stored in the manual setting information storage means and the setting characteristics in other cases, and the maintenance time of the pre-air-conditioning mode stored in the manual setting information storage means Prior air-conditioning priority calculating means for calculating the air-conditioning priority at the time of preliminary air-conditioning of the occupant based on the pre-air-conditioning time characteristic calculated from the history of
When the pre-air-conditioning mode is determined by the pre-air-conditioning mode determining means, the air-conditioning air automatic setting means corrects the air-conditioning air automatic setting means based on the setting information in the pre-air-conditioning mode stored in the manual setting information storage means. Setting correction means;
When the air-conditioning air automatic setting correction means corrects the air-conditioning air automatic setting means, the idling speed correction of the engine is performed according to the air-conditioning priority at the time of pre-air-conditioning calculated by the pre-air-conditioning priority calculating means. An air conditioner for a vehicle, comprising: idle speed correction means for outputting an amount to the engine control device. The vehicle air conditioner according to claim 1,
The preliminary air-conditioning priority calculation means, the larger the difference between the setting characteristics in the pre-air-conditioning mode and the setting characteristics other than the pre-air-conditioning mode stored in the manual setting information storage means in the direction of increasing the air-conditioning capacity, An air conditioning system for a vehicle, characterized in that the longer the characteristic of the pre-air-conditioning time stored in the manual setting information storage means, the higher the air-conditioning priority. The vehicle air conditioner according to claim 1,
If the room temperature in the thermal environment information is equal to or less than a predetermined value calculated according to the room temperature history when the occupant re-boards after the pre-air conditioning, An air conditioner for a vehicle, wherein the air conditioning mode is canceled.

Images