JP2011246030A - Air-conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioner for a vehicle, lowering the temperature of a space inside a cabin to a comfortable temperature by pre-air conditioning without greatly consuming power stored in a battery.SOLUTION: When user-approaching information including a content that a user approaches a vehicle is transmitted from a portable terminal device to the vehicle based on an operation input of the portable terminal device carried by the user and the user-approaching information is received from the portable terminal device in the vehicle, whether it is necessary or not to perform pre-air conditioning for air-conditioning the inside of the cabin beforehand is determined, pre-air conditioning is performed by activating a ventilator arranged in the vehicle based on the result of the determination, and when it is determined that the user has an intention to board on the vehicle, cold air stored in a cold storage device is spouted to cool the inside of the cabin.

Description

  The present invention relates to a vehicle air conditioner, and more particularly, to a vehicle air conditioner provided with a pre-air conditioning function that air-conditions a passenger compartment in advance before a passenger gets on the vehicle.

  In recent years, in a vehicle air conditioner, a method for reducing discomfort during boarding by performing air conditioning (pre-air conditioning) in advance in front of a user's boarding in an environment where the temperature in the vehicle interior becomes extremely high such as in summer. ing. In addition, there is a technology in which a vehicular air conditioner is provided with livestock cooling material to cool the air from the vehicular air conditioning device, and when the vehicle stops, the cool air cooled by the livestock cooling material is allowed to cool and the vehicle interior is cooled. Proposed.

  For example, in a vehicle air conditioner that performs pre-air conditioning using latent heat that has been cooled in an animal cooler while traveling and then cooled in the animal cooler, the cooling load is reduced in a predetermined time zone that requires pre-air conditioning. When the temperature is above a predetermined value, control is performed so that the animal cooler cools, and when the predetermined time zone or cooling load is smaller than the predetermined value, normal air conditioning control is performed without considering the animal cooling to the animal cooler. A device has been devised (see Patent Document 1).

  Also, a compressor of a refrigeration cycle driven by one selected from a vehicle running engine and an electric motor, and indoor heat in which refrigerant is circulated by the drive of the compressor and exchanges heat with the air blown into the vehicle interior The vehicle is provided with an exchanger and a boarding prediction means for predicting whether or not the passenger gets on within a predetermined time when the passenger gets off and the engine is stopped, and the boarding prediction means predicts the boarding within the predetermined time. In such a case, a vehicle air conditioner that performs pre-drive control in which a compressor (compressor) is driven by an electric motor has been devised (see Patent Document 2).

  In addition, when pre-air conditioning of the passenger compartment is carried out before the occupant gets on the vehicle, the cool air can be quickly blown out after the occupant gets on the vehicle by cooling the cold storage and cooling the passenger compartment. In addition, a vehicle air conditioner has been devised that can reduce power consumption and save power even when the heat load such as under the sun is high (see Patent Document 3).

JP 2007-038912 A JP 2004-230936 A Japanese Patent Laid-Open No. 2007-076546

  When the vehicle interior is ventilated as pre-air conditioning, the temperature in the vehicle interior can be lowered to a temperature close to the outside air temperature simply by driving the ventilation fan. However, since the temperature cannot be lowered to a temperature lower than the outside temperature, it is not possible to remove the discomfort at the time of boarding in an environment where the outside temperature is high such as summer.

  In addition, as in Patent Document 1, when the cooling of the animal cooler is used as pre-air conditioning, the cooling effect is higher than in the case of only ventilation, but the amount that can be stored in the animal cooler is limited, so the amount that can be allowed to cool Will also be limited.

  Further, as in Patent Document 2, when performing cooling operation with compressor driving by an electric motor as pre-air conditioning, a large amount of electric power is consumed to drive the compressor, and thus it cannot be driven for a long time.

  Further, as in Patent Document 3, whether or not an occupant is going to get into the vehicle is determined by whether the door is locked or opened. When the occupant gets into the vehicle, the passenger compartment is sufficiently cooled. There is a problem that it is not in a state.

  Against the background of the above problems, an object of the present invention is to provide a vehicle air conditioner that can reduce the space in the vehicle interior to a comfortable temperature by pre-air conditioning without consuming a large amount of power stored in the battery. It is in.

Means for Solving the Problems and Effects of the Invention

The vehicle air conditioner for solving the above problems is
A terminal-side communication unit that is carried by a user and communicates with a vehicle-side communication unit provided in the vehicle, and an operation input unit for a user to perform an operation input. A mobile terminal device that transmits user approach information including content indicating that the user approaches the vehicle from the terminal-side communication unit to the vehicle;
It is necessary to perform pre-air conditioning that is provided in the vehicle and pre-air-conditions the vehicle interior based on the ventilation device that ventilates the vehicle interior of the vehicle and the user approach information received from the mobile terminal device via the vehicle-side communication unit A pre-air conditioning determination unit that determines whether or not, and an air-conditioning control unit that performs pre-air conditioning by operating a ventilator based on the determination result of the pre-air conditioning determination unit.

  With the above configuration, only ventilation is performed when the user gets close to the vehicle to some extent, and the cooling operation by the refrigeration cycle is not performed, so that the power consumption of the battery can be suppressed and the user's discomfort when getting on is reduced. Can do.

  Moreover, the vehicle in the vehicle air conditioner of the present invention includes a power window operation control unit that performs an opening operation of a power window provided in the vehicle when performing pre-air conditioning.

  With the above configuration, when pre-air conditioning is performed, ventilation efficiency can be enhanced by opening a vehicle window (power window) and discharging warm air inside the vehicle to the outside.

  In addition, the vehicle in the vehicle air conditioner of the present invention is cooled by the boarding intention determination unit that determines whether the user intends to board the vehicle, the regenerator that includes the regenerator, and the cool storage material. The air-conditioning control unit, when it is determined that the user intends to get on the vehicle, cools the cool storage material and blows out the air cooled by the cooling to the vehicle interior. The fan is driven and controlled.

  With the above configuration, only ventilation is performed when the user gets close to the vehicle to some extent, and the amount of heat stored in the cold storage material immediately before the user's boarding is allowed to cool at a stretch, so that the cold storage material can be effectively utilized, and the temperature of the entire vehicle interior can be reduced. It can be lowered. Moreover, since the vehicle interior is ventilated before being allowed to cool, the cooling effect is enhanced as compared with the configuration of the prior art. Furthermore, since the cooling operation by a refrigerating cycle is not performed, power consumption can be suppressed.

  Further, the boarding intention determination unit in the vehicle air conditioner of the present invention has an unlocking operation information acquisition unit that acquires unlocking operation information including the content that the unlocking operation of the vehicle door lock has been performed, When the unlocking operation information is acquired, it is determined that the user has a boarding intention.

  In recent years, a keyless entry system that unlocks / locks a door in response to an operation of a portable wireless portable key, or performs authentication between a wireless portable key and a vehicle, and based on the authentication result, Smart keyless entry systems that switch and control the state of a door lock mechanism between unlocking and locking are widely used. Unlocking the door may be regarded as a user's intention to get on the vehicle. With the above configuration, it is possible to determine whether or not the user has a boarding intention without adding a new device.

  Moreover, the air-conditioning control part in the vehicle air conditioner of the present invention controls the blower so that the cooled air is blown out only around the driver's seat in the vehicle interior.

  The discomfort at the time of boarding mainly accompanies a temperature change immediately after boarding. Even if the overall temperature in the passenger compartment cannot be cooled uniformly by the above configuration, if the temperature around the driver's seat, which is considered to have the highest probability of getting in at the beginning, can be cooled to a temperature lower than the outside temperature even temporarily. , Can reduce discomfort when riding.

  Further, the vehicle in the vehicle air conditioner of the present invention includes a compressor that compresses the refrigerant that circulates in the refrigeration cycle by the electric power supplied from the charged battery, an evaporator that vaporizes the compressed refrigerant, and an evaporator. An air conditioning unit that air-conditions the interior of the vehicle, and the air-conditioning control unit determines that the user intends to get on and cools the regenerator material. In addition, the operations of the blower and the compressor are controlled so that the vehicle interior is cooled by the air conditioning unit.

  With the above configuration, in hybrid vehicles, plug-in hybrid vehicles, electric vehicles, and the like, when sufficient electric power is obtained to drive the electric compressor, by performing cooling operation with compressor driving in addition to cooling, While being able to make a vehicle interior comfortable in a short time, the discomfort at the time of a user's boarding can be reduced more. In this case, since the user is about to get on (that is, when the user intends to get on), wasteful consumption of battery power can be suppressed.

The block diagram which shows the structure of a vehicle air conditioner. The block diagram which shows the detailed structure relevant to the air-conditioning unit of a vehicle air conditioner. The flowchart explaining pre air-conditioning control processing. The flowchart explaining a ventilation stop control process. The flowchart explaining a natural cooling stop control process.

  Hereinafter, an embodiment of a vehicle air conditioner of the present invention will be described with reference to the drawings. In FIG. 1, the structure of the vehicle air conditioner 1 is shown. FIG. 2 shows a detailed configuration of the air conditioning unit U and sensors and actuators (air conditioning related parts) related to air conditioning in the vehicle air conditioner 1.

  The vehicle air conditioner 1 is configured to include an air conditioning unit U, sensors, actuators, and a control device 50 to which the air conditioning unit U is included in an air conditioning related section related to air conditioning. Further, the control device 50 is network-connected to the keyless ECU 100, the smart ECU 110, and the power window ECU 120 via a vehicle LAN (Local Area Network) 130 so that data communication is possible.

  The keyless ECU 100 receives a radio wave from the portable key 101 possessed by the user, also referred to as a wireless key, and controls as a keyless entry system that switches and controls the door lock mechanism of the vehicle between unlocking / locking based on the received content. I do.

  When the user approaches the vehicle and opens the door (that is, when the user presses the door knob SW111, which is a switch attached to or near the door knob), the smart ECU 110 is in contact with the smart key 112 possessed by the user. Then, authentication (so-called smart authentication) is performed, and control as a smart keyless entry system is performed which switches and controls the state of the door lock mechanism of the vehicle between unlocking / locking based on the authentication result.

  The power window ECU 120 performs opening / closing drive control of a vehicle window (power window, for example, 122) by an actuator including a motor 121 by a user's switch (not shown) operation.

  In addition, the vehicle air conditioner 1 is included in the control device 50 and is possessed by the user via the base station 91 installed outside the vehicle by the vehicle-side communication unit 507 configured as a known wireless communication device, for example. It can communicate with a mobile terminal device (hereinafter abbreviated as “mobile terminal”) 90 such as a mobile phone. The vehicle-side communication unit 507 and the portable terminal 90 may be directly communicable without going through the base station 91.

  The control device 50 includes a LAN I / F 506, a memory 509, and a control circuit 508 to which these are connected in addition to the vehicle-side communication unit 507 described above. The control device 50 corresponds to the pre-air-conditioning determination unit, the air-conditioning control unit, the boarding intention determination unit, and the power window operation control unit of the present invention.

  The LAN I / F 506 is an interface circuit for exchanging data with other in-vehicle devices and sensors such as the keyless ECU 100, the smart ECU 110, and the power window ECU 120 via the in-vehicle LAN 130. The LAN I / F 506 corresponds to the unlocking operation information acquisition unit of the present invention.

  The control circuit 508 is configured as a normal computer, and includes a well-known CPU 508a, ROM 508b, RAM 508c, A / D conversion unit 508d, I / O 508e which is an input / output circuit, and a bus line 508f which connects these configurations. ing. The CPU 508a implements a function as the vehicle air conditioner 1 by executing an air conditioning control program (not shown) stored in the ROM 508b.

  The A / D conversion unit 508d includes a known A / D converter, and converts, for example, a detection signal (analog value) from each sensor (see FIG. 2) into a digital value that can be calculated by the CPU 508a. .

  The memory 509 is configured by a non-volatile storage medium such as a flash memory, and stores information necessary for the operation of the vehicle air conditioner 1.

  The portable terminal 90 includes a terminal side communication unit 90a and an operation input unit 90b such as a key switch. When the user operates the operation input unit 90b, communication with the vehicle air conditioner 1 becomes possible, and predetermined data can be transmitted. For example, information indicating that the user is approaching can be transmitted. Further, a display unit such as an LCD may be provided.

  As shown in FIG. 2, the air conditioning unit U is a so-called HVAC (Heating, Ventilating and Air-Conditioning) unit. For example, the air conditioning state in the passenger compartment can be adjusted independently on the driver side and the passenger side. Has been.

  One end of the air conditioning duct 10 is provided with inside air intake ports 22 and 22 ′ for taking in air inside the vehicle and outside air inlet ports 24 and 24 ′ for taking in air outside the vehicle. It can be switched by driving the dampers 14 and 15 whether the inside air is taken in from the inside air inlets 22 and 22 'to be in the inside air circulation mode or whether the outside air is taken in from the outside air inlets 24 and 24' to be in the outside air introduction mode. It has become. The dampers 14 and 15 are driven by a suction port switching actuator 62 that operates according to an instruction from the control device 50.

  On the other hand, at the other end of the air-conditioning duct 10, a defroster outlet 27 for preventing windshield fogging is provided as an outlet at the upper rear of the instrument panel (instrument panel) corresponding to the lower inner edge of the windshield. The exit 25 is at the right front corner and the right corner of the instrument panel, the driver's seat foot outlet 26 is at the driver's seat foot at the bottom right of the instrument panel, and the passenger's side face outlet 25 'is at the front center left and the left corner of the instrument panel. Passenger-seat-side foot outlets 26 ′ are opened at the passenger-seat-side feet at the bottom left of the bottom of the instrument panel, and by driving dampers 18, 16, 17, 16 ′, 17 ′ corresponding to the respective outlets, The open / close state is switched. These dampers are driven by an outlet switching actuator 60 that operates according to an instruction from the control device 50.

  Below the air intake ports 22, 22 ′, 24, 24 ′, air taken in from these air intake ports is supplied to the face air outlets 25, 25 ′, the foot air outlets 26, 26 ′, and the defroster air outlet 27. A blower fan 40 that blows air is provided. The blower fan 40 is rotationally driven by a motor 41.

  The rotational speed of the blower fan 40 is controlled by the fan speed control device 42 according to a command from the control device 50. The fan speed control device 42 can be configured to include, for example, a power transistor. In this case, the fan speed can be changed by changing the duty ratio of the voltage applied to the base of the power transistor. The blower fan 40, the motor 41, and the fan speed control device 42 correspond to the blower of the present invention.

  An evaporator 34 that is a heat exchanger for cooling is disposed on the downstream side of the blower fan 40. The evaporator 34, the compressor 43 as a compressor, the condenser 46 as a condenser, and the expansion valve 47 as a decompressor constitute a refrigeration cycle by a refrigerant circulation path. The low-temperature refrigerant circulating in the refrigeration cycle is evaporated by the evaporator 34, and the air passing through the evaporator 34 is cooled by the latent heat of evaporation.

  A regenerator 36 is disposed on the downstream side of the evaporator 34. The regenerator 36 is filled with a regenerator material, which is cooled by the air cooled by the evaporator 34 and solidifies from a liquid to a solid, and a large amount of heat is stored by the latent heat at this time.

  As the cold storage material, for example, decanol, tetradecane, or the like can be used. Since these regenerator materials have a melting point (freezing point) of 7 ° C or 6 ° C, if the temperature of the air after passing through the evaporator 34 is lowered to, for example, 3 ° C, the air is cooled as it is, and the regenerator material is solidified below the melting point. In addition, the evaporator 34 is not frosted. In addition, since it is the same as that of patent document 3 about the structure and its operation | movement of a regenerator, detailed description here is omitted.

  The evaporator 34 may include the regenerator 36 (see, for example, JP-A-2006-282109).

  Cold storage may be performed by attaching a known Peltier element 38 to the regenerator 36. Since the configuration and operation of the Peltier element are the same as those in Patent Document 3, detailed description thereof is omitted here. Since the low temperature side fin of the Peltier element 38 is in contact with a part of the regenerator material in the regenerator 36, the regenerator material can be cooled by applying a DC voltage to the Peltier element 38.

  The compressor 43 is an electric compressor and is driven by a motor 44. Electric power for driving the compressor 43 is supplied from a vehicle battery 49. The rotation speed of the compressor 43 is controlled by the motor speed control device 45 according to a command from the control device 50. The motor speed control device 45 includes, for example, a power transistor. In this case, the rotation speed of the compressor 43 can be changed by changing the duty ratio of the voltage applied to the base of the power transistor.

  The vehicle air conditioner 1 also includes an outside air temperature sensor 52, a solar radiation sensor 54, a vehicle interior temperature sensor 56, a post-evaporator temperature sensor 58, a cool storage material temperature sensor 59, and an air conditioning operation unit 61, which are controlled. It is connected to the device 50.

  The outside air temperature sensor 52 is composed of, for example, a thermistor, senses the outside air temperature as a resistance change, and outputs an outside air temperature signal corresponding to the outside air temperature to the control device 50. The outside air temperature sensor 52 is installed, for example, under the front bumper reinforcement of the vehicle.

  The solar radiation sensor 54 is configured by light detection means such as a photodiode, and outputs a solar radiation amount signal corresponding to the solar radiation amount to the control device 50. The solar radiation sensor 54 is installed, for example, near the defroster outlet at the top of the instrument panel of the vehicle.

  The vehicle interior temperature sensor 56 is composed of, for example, a thermistor, senses the temperature in the vehicle interior as a resistance change, and outputs a vehicle interior temperature signal corresponding to the vehicle interior temperature to the control device 50. The vehicle interior temperature sensor 56 is installed at a predetermined position, for example, in an instrument panel of the vehicle.

  The post-evaporator temperature sensor 58 is installed on the downstream side of the evaporator 34. The post-evaporator temperature sensor 58 includes, for example, a thermistor, and senses the temperature of the air after passing through the evaporator 34 (post-evaporator air temperature) as a resistance change, and outputs a post-evaporator temperature signal corresponding to the temperature to the control device 50. To do.

  The regenerator temperature sensor 59 is provided in the regenerator 36, for example, detects the temperature of the filled regenerator material, and outputs a regenerator temperature signal corresponding to the temperature to the control device 50.

  The air-conditioning operation unit 61 is provided in an air-conditioner panel provided in the center of the front of the instrument panel that can be operated by a driver and a passenger on the front passenger seat, and is provided with an ON / OFF switch, an air volume switch, a temperature setting switch, and an outlet. It includes switches such as a changeover switch (MODE switch), an inside / outside air changeover switch, a defroster switch, an A / C switch, and an independent / collective control changeover switch (DUAL switch). Each of these switches is configured as a well-known pressing operation unit or dial operation unit.

  With the configuration as described above, the vehicle air conditioner 1 controls the blowout temperature control by driving and controlling each actuator described above based on the operation state of the air conditioning operation unit 61 and the detection results of the various sensors described above. Well-known air conditioning control such as air volume control, inside air / outside air switching control, and outlet switching control is executed.

  Such a vehicle air conditioner can be applied to a so-called hybrid vehicle using an engine and an electric motor as drive sources. However, if an electric compressor is used, only the engine or only the electric motor is used as a drive source. It can also be applied to vehicles.

  Further, the air conditioning unit U is provided with a ventilation duct 97 so as to branch from the outside air intake port 24 (or 24 ′) and bypass the air conditioning duct 10. The other end (ventilation outlet) of the ventilation duct 97 is connected to, for example, the driver side face outlet 25 and the passenger side face outlet 25 '. A damper for introducing / blocking air from the ventilation duct 97 to the air outlet may be provided at a connection portion between the air duct 97 and the air outlets 25 and 25 ′. The ventilation outlet may be connected to the foot outlets 26, 26 ′ and the defroster outlet 27. At the time of ventilation, each outlet is closed (for example, air in the air conditioning duct 10 does not flow into the vehicle interior), and only air from the ventilation duct 97 flows into the vehicle interior. The dampers 16, 16 ', 17, 17', and 18 are controlled to drive. In addition to these air outlets, an independent ventilation air outlet may be provided in the passenger compartment. Of course, the outside air intake of the ventilation duct 97 may be provided separately from the outside air intake 24.

  A ventilation fan unit 96 including a motor and a ventilation fan is provided in the ventilation duct 97. The number of rotations of the ventilation fan is controlled by the ventilation fan speed control device 95 according to a command from the control device 50. The ventilation fan speed control device 95, the ventilation fan unit 96, and the ventilation duct 97 constitute a ventilation device.

  The pre-air conditioning control process in the vehicle air conditioner 1 will be described with reference to FIG. This process is included in the air conditioning control program stored in the ROM 508b by the CPU 508a and is repeatedly executed together with other processes included in the program.

  First, when the vehicle-side communication unit 507 included in the control device 50 can communicate with the portable terminal 90, data from the portable terminal 90 is received (S11). Then, it is determined whether or not the received data includes information indicating that the user is approaching the vehicle (that is, user approach information).

  When user approach information is included (S12: Yes), ventilation is started (S13). That is, in FIG. 2, the suction port switching actuator 62 is actuated by an instruction from the control device 50, and the dampers 14 and 15 are driven to enter the outside air introduction mode. Further, the damper 16 is operated by operating the air outlet switching actuator 60 in accordance with an instruction from the control device 50 so that the outside air introduced from the ventilation duct 97 is blown out from the driver side face air outlet 25 and the passenger side face air outlet 25 '. , 16 ', 17, 17', 18 (that is, each damper is in a closed state). Further, in accordance with an instruction from the control device 50, the ventilation fan unit 96 is rotationally driven so as to have a predetermined air volume. At this time, the ventilation flag on the RAM 508c is set.

  In addition to the face outlets 25 and 25 ′, the ventilation duct 97 may be configured so that the foot outlets 26 and 26 ′ and the defroster outlet 27 are used as ventilation outlets, or a plurality of outlets are combined. May also be used. Further, the air volume of the ventilation fan unit 96 may be calculated based on the detection results of the various sensors described above.

  When performing ventilation, a command may be sent to the power window ECU 120 to open one or a plurality of windows (122) at a predetermined opening degree.

  In order to efficiently ventilate the passenger compartment, a slit-like opening may be provided in a member on the wall that partitions the rear seat and the trunk room.

  Returning to FIG. 3, boarding intention information for determining whether or not the user has a boarding intention is acquired (S14). And the presence or absence of a user's boarding intention is determined based on the acquired boarding intention information. The determination method uses at least one of the following.

  The keyless ECU 100 outputs door locking information indicating the door locking state to the in-vehicle LAN 130 at a predetermined cycle. The control apparatus 50 acquires door locking information as boarding intention information via the in-vehicle LAN 130. When the user operates the portable key 101, a door unlock signal is transmitted from the portable key 101 to the keyless ECU 100, the door is unlocked, and the door lock state is changed from "locked" to "unlocked" in the door lock information. When the unlocking operation information indicating that the user has performed is included, it is determined that the user has a boarding intention.

  The smart ECU 110 outputs door locking information indicating the door locking state to the in-vehicle LAN 130 at a predetermined cycle. The control apparatus 50 acquires door locking information as boarding intention information via the in-vehicle LAN 130. When the user approaches the vehicle and presses the door knob SW111, the door is unlocked as a result of authentication between the smart ECU 110 and the smart key 112, and the door locking state is displayed as “locked” in the door locking information. When unlocking operation information indicating that the state has been changed to “unlocking” is included, it is determined that the user has an intention to board.

  When it is determined that the user has an intention to board (S15: Yes), the ventilation fan unit 96 is stopped by an instruction from the control device 50, and the ventilation flag on the RAM 508c is cleared (S16). When the window (122) is open, a command is sent to the power window ECU 120 to close all windows.

  Subsequently, the air cooled by the cold storage material is blown out from the face outlets 25 and 25 ', and the vehicle interior is pre-cooled by cooling (S17). That is, in response to an instruction from the control device 50, the suction port switching actuator 62 is operated to drive the dampers 14 and 15 so as to enter the inside air circulation mode. Moreover, the blower outlet switching actuator 60 is driven so that the air cooled by the regenerator 36 is blown out from the driver seat side face blower outlet 25 and the passenger seat side face blower outlet 25 ′ according to an instruction from the control device 50. In the case of the configuration including the Peltier element 38, the power source of the Peltier element 38 is turned off and the Peltier element cooling passage 12 is closed. Further, the blower fan 40 is driven to rotate. At this time, the cooling flag on the RAM 508c is set.

  The air volume of the blower fan 40 may be calculated based on the detection results of the various sensors described above. In addition, pre-cooling may be performed only around the driver's seat. At this time, the blower outlet switching actuator 60 is driven by the instruction from the control device 50 so that the air cooled by the regenerator 36 is blown out only from the driver's seat-side face outlet 25 and the driver's seat-side foot outlet 26.

  The ventilation operation described above may be continued during pre-cooling. The window (122) may be closed after a predetermined time has elapsed since the start of pre-cooling.

  Further, during pre-cooling, in addition to allowing the regenerator 36 to cool, the compressor 43 may be driven and controlled to perform the cooling operation by the above-described refrigeration cycle.

  In addition, the cool storage method with respect to the cool storage device 36 is the same as that of S200-S218, S224 (FIG. 6) of FIG. Further, cold storage may be performed similarly to the second embodiment of Patent Document 3 without using a Peltier element.

  The ventilation stop control process will be described with reference to FIG. This process is included in the air conditioning control program stored in the ROM 508b by the CPU 508a and is repeatedly executed together with other processes included in the program. First, it is determined whether ventilation is performed. When step S13 of FIG. 3 is executed, the ventilation flag on the RAM 508c is set. Therefore, when the ventilation flag is set, it is determined that ventilation is in progress.

When ventilation is in progress (S31: Yes), it is determined whether or not a ventilation stop condition is satisfied. The determination method uses at least one of the following.
-When it is not determined that the user is willing to board even after a predetermined time has elapsed after the start of ventilation.
When the charge amount of the battery 49 falls below a predetermined threshold value (the charge amount detection method is based on Patent Document 3).
When information indicating that the vehicle is not approached is sent to the control device 50 by the user's operation of the portable terminal 90.
・ When pre-cooling starts.

  When the ventilation stop condition is satisfied (S32: Yes), the drive of the ventilation fan unit 96 is stopped by an instruction from the control device 50 to the ventilation fan speed control device 95 (S33). At this time, the ventilation flag on the RAM 508c is cleared.

  The cooling stop control process will be described with reference to FIG. This process is included in the air conditioning control program stored in the ROM 508b by the CPU 508a and is repeatedly executed together with other processes included in the program. First, it is determined whether or not the pre-air conditioning is allowed to cool. When step S17 of FIG. 3 is executed, the cooling-in-progress flag on the RAM 508c is set. Therefore, when the cooling-in-progress flag is set, it is determined that the cooling is in progress.

When it is standing to cool (S51: Yes), it is determined whether a ventilation stop condition is satisfied. The determination method uses at least one of the following.
・ When a predetermined time has elapsed since the start of cooling.
-When the user gets on and the door is locked. That is, when the door locking information includes locking operation information indicating that the door has been changed from “unlocked” to “locked”.
When the charge amount of the battery 49 falls below a predetermined threshold value (the charge amount detection method is based on Patent Document 3).
・ When the temperature in the passenger compartment reaches a predetermined temperature.
・ When the vehicle engine is started.

  When the cooling stop condition is satisfied (S52: Yes), the driving of the blower fan 40 is stopped by an instruction from the control device 50 (S53). At this time, the cool-down flag on the RAM 508c is cleared.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 34 Evaporator 36 Regenerator 40 Blower fan (blower)
41 Motor (blower)
42 Fan speed control device (blower)
43 Compressor 49 Battery 50 Control device (pre-air conditioning judgment unit, air conditioning control unit, boarding intention judgment unit, power window operation control unit)
506 LAN I / F (unlocking operation information acquisition unit)
508 Control circuit 507 Vehicle side communication unit 90 Mobile terminal 90a Terminal side communication unit 90b Operation input unit 95 Ventilation fan speed control device 96 Ventilation fan unit 97 Ventilation duct 100 Keyless ECU
110 Smart ECU
120 power window ECU
130 Car LAN
U Air conditioning unit (ventilator)

Claims (6)

A terminal-side communication unit that is carried by a user and communicates with a vehicle-side communication unit provided in the vehicle; and an operation input unit for the user to perform an operation input. A mobile terminal device that transmits user approach information including content indicating that the user approaches the vehicle from the terminal-side communication unit to the vehicle;
Provided in the vehicle,
A ventilator for ventilating the interior of the vehicle;
Based on the user approach information received from the mobile terminal device via the vehicle-side communication unit, a pre-air conditioning determination unit that determines whether it is necessary to perform pre-air conditioning for pre-air conditioning the vehicle interior;
Based on the determination result of the pre-air conditioning determination unit, an air conditioning control unit that performs pre-air conditioning by operating the ventilator;
A vehicle air conditioner comprising:   The vehicle air conditioner according to claim 1, wherein the vehicle includes a power window operation control unit that performs an opening operation of a power window provided in the vehicle when performing the pre-air conditioning. The vehicle has a boarding intention determination unit that determines whether or not the user has a boarding intention during the operation of the ventilation device;
A regenerator including a regenerator,
A blower for sending air cooled by allowing the cold storage material to cool to the vehicle interior,
The air-conditioning control unit drives and controls the blower so that the cool storage material is allowed to cool when it is determined that the user has a boarding intention and the air cooled by the cool is blown out into the vehicle interior. Or the vehicle air conditioner of Claim 2. The boarding intention determination unit has an unlocking operation information acquisition unit that acquires unlocking operation information including the content that the unlocking operation of the door lock of the vehicle has been performed,
The vehicle air conditioner according to claim 3, wherein when the unlocking operation information is acquired, it is determined that the user has an intention to get on.   5. The vehicle air conditioner according to claim 3, wherein the air conditioning control unit controls the blower so that the cooled air is blown out only around a driver's seat in the passenger compartment. The vehicle is
The electric power supplied from the charged battery compresses the refrigerant circulating in the refrigeration cycle, the evaporator vaporizes the compressed refrigerant, and blows the air cooled by the evaporator into the vehicle interior of the vehicle. An air conditioning unit for air conditioning the vehicle interior,
The air conditioning control unit controls operations of the blower and the compressor so as to cool the passenger compartment when it is determined that the user intends to get on and the cool storage material is allowed to cool. Item 6. The vehicle air conditioner according to any one of Items 5.

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