JP2008184103A - Vehicular air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain a battery from running out while maintaining air conditioning control for improving the comfort even when an internal combustion engine such as an engine is stopped for improving theft prevention when boarding of an occupant is detected. <P>SOLUTION: When opening of a door is detected during the pre-air-conditioning, boarding of an occupant is determined, the engine is stopped (200), a timer is set (202), and blower air is reduced by a predetermined amount to continue air blasting only (204). When an ignition is turned on, the air conditioner shifts to the normal air conditioning control (208). When the ignition is not turned on and times out, the air blasting is stopped (210, 212). <P>COPYRIGHT: (C)2008,JPO&INPIT

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, vehicle air conditioners have various types of so-called pre-air-conditioning that pre-air-conditions a passenger compartment before a passenger gets in by a preset driving method by an instruction using a remote controller or a timer setting from a passenger. Technology has been proposed.

  When the vehicle air conditioner provided with the above-described pre-air conditioning is mounted on a vehicle that travels using an internal combustion engine such as an engine as power, when heating is performed, the engine cooling water is heated as a heat source, and When performing cooling, it is necessary to drive a compressor or the like rotated by the engine. Therefore, when performing pre-air conditioning, it is necessary to start the engine, and the engine is started and air-conditioned during pre-air conditioning.

As a vehicle air conditioner having such a pre-air-conditioning function, for example, a technique described in Patent Document 1 is proposed. In the technique described in Patent Document 1, a pre-start circuit is started from a pre-start circuit of a pre-start device. When the operation signal is generated, the air flow control means of the air-conditioning air blowing means is changed from the normal characteristic to the characteristic at the time of pre-starting, and the air flow is increased to quickly bring the passenger compartment temperature close to the set temperature. I am doing so. Further, in the technique described in Patent Document 1, during pre-air conditioning, the air-conditioning wind intake port is taken from the passenger compartment to circulate, and the blower port is set to a face mode that blows out in the face direction of the occupant to increase the air flow rate. I am doing so. As a result, the passenger compartment can be quickly brought to the set temperature before the passenger gets on.
JP-A-7-266842

  However, in the vehicle air conditioner equipped with pre-air conditioning as in the technique described in Patent Document 1, the engine is started and the air conditioning is operated. Therefore, in order to prevent theft, the engine is stopped when the door opening is detected. It is conceivable to provide a function to perform normal air-conditioning control when the engine is stopped. Further, it is conceivable to stop the engine and maintain air conditioning using a power source such as a battery. However, if normal air conditioning is performed, the battery will rise.

  The present invention has been made in consideration of the above facts, and even when an occupant is detected, the air conditioning control is maintained and comfort is maintained even when the internal combustion engine such as an engine is stopped to improve theft prevention. The purpose is to suppress the battery running out while improving the above.

  In order to achieve the above object, the invention according to claim 1 is the case where the pre-air-conditioning for starting the internal combustion engine and pre-air-conditioning the vehicle interior when the predetermined condition is satisfied before the passenger gets on and the ignition switch is on. When the occupant's boarding is detected during the pre-air-conditioning by the air-conditioning means capable of normal air-conditioning for air-conditioning the vehicle interior based on the air-conditioning request set in advance and the detection means for detecting the passenger's boarding And control means for controlling the air-conditioning means so as to maintain the air-conditioning with the air-conditioning capability lower than that of the normal air-conditioning using battery power while stopping the internal combustion engine.

  According to the first aspect of the present invention, in the air conditioning means, when the predetermined condition is satisfied before the occupant gets on the vehicle, the internal combustion engine is started and the vehicle interior is pre-air-conditioned, and the ignition switch is on. It is possible to perform normal air conditioning that air-conditions the vehicle interior based on preset air conditioning requirements. For example, pre-air conditioning is performed when a predetermined condition is satisfied, such as when the start of an internal combustion engine is requested by a remote start or when pre-air conditioning is requested by a remote start, and if the ignition switch is on, Based on the detection result of a sensor (outside air temperature sensor, inside air temperature sensor, solar radiation sensor, etc.), normal air conditioning is performed to calculate the target blowing temperature and control the air conditioning so that the target blowing temperature is reached.

  Then, the control means stops the internal combustion engine when the detection means detects the occupant's boarding during the pre-air conditioning, and uses the battery power to maintain the air conditioning with a lower air conditioning capability than the normal air conditioning. Means are controlled. As a result, when an occupant's boarding is detected, the internal combustion engine is immediately stopped, so that vehicle theft can be prevented. In addition, air conditioning is not stopped immediately when the internal combustion engine is stopped, but the air conditioning capacity is reduced and air conditioning is maintained. Therefore, the passenger can feel that the air conditioning is being performed, and comfort can be improved. Moreover, since air-conditioning capability is reduced when air-conditioning is maintained, battery power can be suppressed.

  Therefore, even when an occupant is detected and the internal combustion engine such as an engine is stopped to prevent theft, it is possible to maintain the air-conditioning control and improve the comfort while suppressing the battery from rising.

  When the air-conditioning means has a blower delay function for delaying the blower operation during heating until the cooling water of the internal combustion engine becomes equal to or higher than a predetermined temperature, as in the invention according to claim 2, the control means Even when the cooling water of the internal combustion engine is lower than a predetermined temperature at the time of air conditioning before the article, the air conditioning means may be further controlled so as to perform the air blowing operation while prohibiting the air blowing delay function. In other words, the slow air blowing function is a function that gives priority to the occupant's feeling so that air that is not warmed up is not blown out. Therefore, it is possible to perform heating in a short time by performing air conditioning with priority given to air conditioning in the vehicle interior by prohibiting the air blowing delay function and blowing air.

  The control means, as in the third aspect of the invention, further controls the air-conditioning means so as to stop the air-conditioning after a predetermined time has elapsed since the detection board detected the condition boarding during the pre-air-conditioning. It may be. As a result, it is possible to prevent the battery from running up when the internal combustion engine is not started for a long time after the passenger is boarded.

  Further, as in the invention described in claim 4, the air conditioning unit may perform air conditioning by selecting an air intake and an air outlet that prioritize air conditioning in the vehicle interior when performing prior air conditioning. For example, it is possible to heat the interior of the vehicle more quickly by air circulation than by introducing outside air during heating, and from the air outlet that blows out toward the face of the occupant rather than blowing from the foot outlet Since the vehicle interior can be air-conditioned faster when the air is blown, it is possible to air-condition the vehicle interior in a short time by selecting the air intake and air outlet that prioritizes air conditioning in the vehicle interior. Become.

  As described above, according to the present invention, when an occupant is detected during pre-air-conditioning, the internal combustion engine is stopped, and the air-conditioning is maintained with a lower air-conditioning capability than the normal air-conditioning using battery power. Even if an internal combustion engine such as an engine is stopped and theft prevention is improved by detecting the occupant's boarding, the air conditioning control is maintained to improve the comfort and suppress the battery rising. There is an effect that can be.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a detailed configuration of a vehicle air conditioner according to an embodiment of the present invention. The vehicle air conditioner 10 according to the embodiment of the present invention is applied to a vehicle air conditioner mounted on a vehicle that travels by the power of an internal combustion engine such as an engine, a hybrid vehicle that includes an engine and a motor, or the like. be able to.

  In the vehicle air conditioner 10, a refrigerant cycle including a compressor 14, a condenser 16, an expansion valve 18, and an evaporator 20 constitutes a refrigeration cycle.

  The evaporator 20 cools the air passing through the evaporator 20 (hereinafter referred to as air after the evaporator) by vaporizing the compressed and liquefied refrigerant. At this time, the evaporator 20 cools the passing air so as to condense moisture in the air, thereby dehumidifying the air after the evaporator 20.

  The expansion valve 18 provided on the upstream side of the evaporator 20 supplies the liquefied refrigerant in a mist form to the evaporator by abruptly reducing the pressure, whereby the refrigerant in the evaporator 20 is supplied. Vaporization efficiency is improved.

  In the present embodiment, the compressor 14 of the vehicle air conditioner 10 circulates the refrigerant by a compressor that is mechanically driven using the power of the vehicle. Note that an electric compressor capable of circulating the refrigerant without operating a power source (for example, an engine or a motor) of the vehicle may be applied.

  The evaporator 20 of the vehicle air conditioner 10 is provided inside the air conditioning duct 38. The air conditioning duct 38 is open at both ends, and air intake ports 40 and 42 are formed at one opening end. Further, a plurality of air outlets 44 (44A, 44B, and 44C are shown as an example in the present embodiment) that are opened toward the vehicle interior are formed at the other opening end.

  The air inlet 42 communicates with the outside of the vehicle and can introduce outside air into the air conditioning duct 38. Further, the air intake port 40 communicates with the passenger compartment so that air (inside air) in the passenger compartment can be introduced into the air conditioning duct 38. The air outlet 44 is, for example, a defroster outlet 44A that blows out air toward the windshield glass, a side and center register outlet 44B, and a foot outlet 44C.

  A blower fan 46 is provided in the air conditioning duct 38 between the evaporator 20 and the air intake ports 40 and 42. A mode switching damper 48 is provided in the vicinity of the air intake ports 40 and 42. The mode switching damper 48 opens and closes the air intake ports 40 and 42 by the operation of an actuator such as the mode switching damper motor 24.

  The blower fan 46 is rotated by driving the blower motor 22, sucked into the air conditioning duct 38 from the air intake port 40 to the air intake port 42, and further sends this air toward the evaporator 20. At this time, outside air or inside air is introduced into the air conditioning duct 38 in accordance with the open / close state of the air intake ports 40 and 42 by the mode switching damper 48. That is, the mode switching damper 48 switches between the inside air circulation mode and the outside air introduction mode.

  An air mix damper 50 and a heater core 52 are provided downstream of the evaporator 20. The air mix damper 50 is rotated by driving the air mix damper motor 36 to adjust the amount of air after the evaporator 20 that passes through the heater core 52 and the amount that bypasses the heater core 52. The heater core 52 heats the air guided by the air mix damper 50.

  The air after the evaporator 20 is guided to the heater core 52 according to the opening degree of the air mix damper 50 and heated, and further mixed with the air not heated by the heater core 52 and then sent to the air outlet 44. Is done. In the vehicle air conditioner 10, the air mix damper 50 is controlled to adjust the amount of air heated by the heater core 52, thereby adjusting the temperature of the air blown out from the air blowing port 44 toward the vehicle interior.

  In the vicinity of each air outlet 44, an outlet switching damper 54 is provided correspondingly. In the vehicle air conditioner 10, the air outlets 44 </ b> A, 44 </ b> B, and 44 </ b> C are opened and closed by the outlet switching damper 54, so that the temperature-adjusted air can be blown from a desired position into the vehicle interior.

  The vehicle air conditioner 10 also includes an air conditioner ECU (Electronic Control Unit) 11 for performing various controls of the vehicle air conditioner 10. The air conditioner ECU 11 includes a blower motor 22, a mode switching damper motor 24, an air mix damper motor 36, an outlet motor 13, an outlet switching damper motor 34, a compressor 14, an outside air temperature sensor 32, and an inside air temperature sensor 30. And the solar radiation sensor 28 are connected, and an operation unit 15 for setting the temperature of the air conditioner 10 for the vehicle, selection of the outlet, etc. is connected, and an outside air temperature sensor 32, an inside air temperature sensor 30, and The detection value of the solar radiation sensor 28 is input to the air conditioner ECU 11, and various controls are performed according to the setting of the operation unit 15 based on the detection result of each sensor.

  Further, an engine ECU (Electronic Control Unit) 12, a door switch 26, and a remote control receiver 17 are connected to the air conditioner ECU 11, and the remote control receiver 17 receives an instruction such as an engine start request from the remote control transmitter 19. In some cases, it is possible to make an engine start request to the engine ECU 12, and the temperature of the engine coolant serving as a heat source during heating is input from the engine ECU 12.

  As the various controls performed by the air conditioner ECU 11, when the ignition switch is turned on, the target air temperature is controlled so that the target air temperature is controlled by calculating the target air temperature based on the detection result of each sensor and the setting content of the operation unit 15. Control of air-conditioning and so-called pre-air-conditioning control that air-conditions the passenger compartment before occupant boarding are performed. When the air conditioner ECU 11 performs normal air conditioning control, the compressor 14 is turned on / off, the air mix damper motor 36 is driven, the air outlet 44 is switched, the air intake 40 is controlled in accordance with the target outlet temperature and the like. , 42 (such as mode switching control in the inside air circulation mode and outside air introduction mode).

  The switching control of the air intake ports 40 and 42 may be performed manually by the occupant operating the operation unit 15. In addition, as a condition for starting the pre-air conditioning control, for example, when an air conditioning request from the remote control transmitter 19 carried by the passenger is received by the remote control receiver 17 or when a time set in advance by the operation unit 15 has elapsed. When the time preset by the operation unit 15 is reached, the pre-air conditioning is started.

  In addition, when the air conditioner ECU 11 performs heating, if the engine coolant temperature input from the engine ECU 12 is lower than a predetermined temperature, sufficient air conditioning capability cannot be obtained, so that the passenger's sense is given priority. In addition, when the blower slowing control is performed to delay the drive of the blower motor 22 until the cooling water temperature becomes a predetermined temperature or more, and when the air is controlled to be blown from the foot outlet 44C by the air conditioning control during heating, In order to prevent fogging of the window, fog prevention control is performed to control the mode switching damper motor 24 so as to enter the outside air introduction mode.

  Here, the details of the pre-air conditioning performed by the air conditioner ECU 11 of the vehicle air conditioner 10 according to the embodiment of the present invention will be described.

  When performing pre-air conditioning, the air conditioner ECU 11 requests the engine ECU 12 to start the engine to start power for running the vehicle such as an engine and a motor, and drives the compressor 14 and various motors before the passenger rides. The vehicle interior is pre-air-conditioned. Further, in the present embodiment, at the start of pre-air conditioning, unlike the control of normal air conditioning, the air conditioner ECU 11 performs selection of a suction port, selection of a blower port, etc. with priority given to air conditioning of the vehicle interior, and the above-mentioned. The blower delay control is stopped and the blower motor 22 is driven to air-condition the vehicle interior in a short time.

  In addition, the air conditioner ECU 11 determines that the passenger is in the occupant when the door switch 26 detects the opening / closing of the door during the pre-air-conditioning control, and stops the engine by making an engine stop request to the engine ECU 12. The pre-air conditioning is maintained by reducing the capacity, and the pre-air conditioning is stopped after a predetermined time has elapsed. Then, when a signal indicating that the ignition-on instruction has been issued is input from the engine ECU 12, the control proceeds to normal air conditioning control. In addition, when maintaining air conditioning after an engine stop, the vehicle interior is air-conditioned using the electric power of the battery mounted in the vehicle. Specifically, in the present embodiment, only the blower motor 22 is driven using battery power to maintain air conditioning.

  Next, the flow of processing when performing pre-air conditioning performed by the air conditioner ECU 11 of the vehicle air conditioner 10 according to the embodiment of the present invention configured as described above will be described. FIG. 2 is a flowchart showing an example of the flow of processing when performing pre-air conditioning performed by the air conditioner ECU 11 of the vehicle air conditioner 10 according to the embodiment of the present invention. In addition, below, the process at the time of heating is shown as an example.

  First, at step 100, a remote start instruction is detected, and the routine proceeds to step 102. In other words, the remote control receiver 17 detects a pre-air-conditioning start instruction or a signal indicating engine start transmitted from the remote control transmitter 19.

  In step 102, it is determined whether remote start is on. In this determination, the air conditioner ECU 11 determines whether or not the remote control receiver 17 has received a pre-air-conditioning start instruction or an engine start instruction transmitted from the remote control transmitter 19. Returning, the above-described processing is repeated, and when the determination is affirmed, the routine proceeds to step 104.

  In step 104, the engine is started and the routine proceeds to step 106. That is, the air conditioner ECU 11 makes an engine start request to the engine ECU 12 to start the engine.

  In step 106, the air conditioning is activated with the vehicle interior temperature set at 25 degrees, and the routine proceeds to step 108. That is, the air conditioner ECU 11 calculates the target blow temperature (TAO) with the set temperature as 25 degrees, drives the air mix damper motor 36 so as to obtain the calculated target blow temperature, and opens the air mix damper 50. And the air volume of the blower fan 46 is adjusted by controlling the drive of the blower motor 22. Further, when the selection of the air outlet 44 is automatically set at this time, air conditioning is performed by selecting a preset air outlet 44 corresponding to the target outlet temperature for each of heating and cooling. When the selection of 44 is manual setting, the occupant operates the operation unit 15 to select a preset air outlet 44 to perform air conditioning. The target blowing temperature is calculated using a general formula of TAO = K1 * Tset-K2 * Tr-K3 * To-K4 * ST + C. Here, Tset is the set temperature, Tr is the passenger compartment temperature, To is the outside air temperature, ST is the amount of solar radiation, and K1, K2, K3, K4, and C are constants.

  In step 108, it is determined by the air conditioner ECU 11 whether or not the air outlet 44 is the foot outlet (FOOT mode). If the determination is negative (for example, the DEF mode for blowing from the defroster outlet 44A, the side and center register outlets) If the FACE mode blows out from the port 44B, or the B / L (bi-level) mode blows out from the side and center register outlet 44B and the foot outlet 44C), the process proceeds to step 110. If the determination is affirmative, the process proceeds to step 112. Transition.

  In step 110, normal air conditioning control is performed and the routine proceeds to step 114. That is, as described in step 106, the air conditioning control is performed so that the target blowing temperature is calculated by calculating the target blowing temperature at the set temperature of 25 degrees.

  In step 112, air conditioning control is performed with the blower delay control prohibited during the FACE mode, the inside air circulation, and the low water temperature, and the routine proceeds to step 114. In other words, when the air is blown out from the foot air outlet 44C, the air volume is lower than the other air outlets 44 due to the route of the air-conditioned air and so on. The air conditioner ECU 11 drives the air outlet switching damper motor 34 so that the air outlet 44 becomes the side and center air outlets 44B, thereby setting the FACE mode, and setting the mode switching damper motor 24 so as to enter the inside air circulation mode. The inside air circulation mode is set by driving. Then, the blower motor 22 is driven regardless of the engine coolant temperature input from the engine ECU 12 to the air conditioner ECU 11. Accordingly, it is not necessary to give priority to the occupant's sensation, so that the air outlet that gives priority to heating in the passenger compartment (FACE mode) is set, the inside air circulation mode that gives priority to heating in the passenger compartment is set, and blower delay control is performed. Since it is prohibited, the passenger compartment can be air-conditioned faster than the normal air-conditioning control that gives priority to the occupant's feeling.

  In step 114, it is determined whether or not the door is opened. The determination is made by determining whether the passenger has boarded by determining whether the door opening is detected by the door switch 26, and determining that the passenger has boarded when the door has been opened. When the result is affirmative and the process proceeds to step 116, and when the result is negative, the process returns to step 108 and the above-described processing is repeated.

  In step 116, the passenger boarding process (details will be described later) is performed, and the series of processes ends.

  Here, the post-passenger boarding process will be described. FIG. 3 is a flowchart showing an example of a detailed flow of occupant post-processing performed by the air conditioner ECU of the vehicle air conditioner according to the embodiment of the present invention.

  In step 200, the engine is stopped and the routine proceeds to step 202. That is, the engine is stopped by outputting an engine stop request from the air conditioner ECU 11 to the engine ECU 12.

  In step 202, the timer is set and the routine proceeds to step 206. The timer may be set as appropriate so that the battery serving as a power source for maintaining the air conditioning after the engine is stopped may be set appropriately, or the set time may be changed as appropriate according to the remaining battery level. Also good.

  In step 204, the air conditioner ECU 11 reduces the blower air volume by a predetermined amount and continues only the air blowing. That is, if the air-conditioning control is stopped when the occupant gets on, the feeling at the moment when the occupant gets on is not so good, so the air conditioner ECU 11 drives only the blower motor 22 using the battery voltage mounted on the vehicle. The blower fan 46 is rotated by reducing the rotation of the blower fan 46 by a predetermined amount, and only the air blown from the air outlet 44 is maintained. As a result, the engine cooling water that is a heat source for heating does not circulate in the heater core when the engine is stopped, and thus the air conditioning capability is reduced. However, air conditioning can be performed by the heat stored in the heater core, the cooling water piping, or the like. Therefore, it is possible to improve the feeling when the occupant rides. Further, by performing air conditioning by reducing the blower air volume by a predetermined amount, that is, by reducing the air conditioning capacity, it is possible to suppress battery consumption when the engine is stopped while suppressing heat release from the heat source.

  Subsequently, at step 206, the air conditioner ECU 11 determines whether or not the ignition switch is turned on. This determination is made by determining whether or not a signal indicating that the ignition switch is turned on is input from the engine ECU 12 to the air conditioner ECU 11, and if the determination is affirmative, the process proceeds to step 208, and if the determination is negative Proceeds to step 210.

  In step 208, since the engine is started by turning on the ignition switch, the routine proceeds to control of normal air conditioning by the air conditioner ECU 11, and a series of processes is terminated. That is, the air conditioner ECU 11 performs air-conditioning control so as to obtain the target air temperature calculated by calculating the target air temperature as in step 106 described above. At this time, instead of setting the set temperature at 25 degrees, the target blowing temperature is calculated so that the set temperature is set in the operation unit 15 by the occupant, and the air conditioning control is performed.

  On the other hand, in step 210, it is determined by the air conditioner ECU 11 whether or not the timer set in step 202 has timed out. If the determination is negative, the process returns to step 204 and the above processing is repeated, and the determination is affirmed. The process proceeds to step 212.

  In step 212, the air blowing is stopped and the series of processes is terminated. That is, the air conditioner ECU 11 stops the blowing by the blower fan 46 by stopping the driving of the blower motor 22. As a result, the air-conditioning only for blowing air is maintained only for the time set by the timer after the engine is stopped, so that the comfort in the passenger compartment can be maintained and the battery can be prevented from rising.

  As described above, the vehicle air conditioner 10 according to the present embodiment starts the engine and starts pre-air conditioning when the engine start or the pre-air-conditioning instruction is given by the remote control transmitter 19 or the like. At this time, in the present embodiment, control is performed so that the air conditioning condition is given priority to the air conditioning of the passenger compartment rather than the passenger's sense priority (in the case of the FOOT mode, the FACE mode, the inside air circulation mode, the blower delay control prohibition) The vehicle interior can be air-conditioned in a shorter time than the air conditioning condition that gives priority to the senses of the passengers.

  Furthermore, when an occupant is detected, the engine is stopped immediately, so that vehicle theft can be prevented. And instead of stopping the air conditioning immediately when the engine is stopped, the air conditioning is reduced by maintaining the air conditioning by reducing the air conditioning capacity (blower due to residual heat), so that the air conditioning is continued by stopping the air conditioning rather than immediately stopping at the time of boarding This makes it possible to make the occupant feel that he / she is in the vehicle, thus improving comfort. Moreover, when air conditioning is maintained after the engine is stopped, the air conditioning capability is reduced only by blowing air, so that the battery can be prevented from rising.

  In the above embodiment, the processing when performing pre-air conditioning during heating has been described. However, the occupant operates the operation unit 15 to set the air outlet 44 to the foot outlet 44C or the outside air introduction mode. In the case of performing pre-air conditioning, it is possible to air-condition the vehicle interior in a short time conventionally by controlling as in the flowchart shown in FIG. 2 not only during heating but also during cooling.

  In the above-described embodiment, the processing after the passenger rides in the vehicle air conditioner using engine cooling water as a heat source for heating (FIG. 3) has been described. Applying a vehicle air conditioner equipped with the used heat pump, a vehicle air conditioner that circulates engine coolant using an electric water pump, a vehicle air conditioner equipped with a PTC (Positive Temperature Coefficient) heater, etc. Do not stop the air-conditioning when boarding, and maintain the air-conditioning capacity by reducing the air-conditioning capacity (for example, lowering the rotational speed in the case of an electric compressor or electric water pump, lowering the electric power in the case of an electric heater such as a PTC heater). By doing so, it is possible to make the passenger feel that it is air-conditioned. In the above-described embodiment, the processing after the passenger rides during heating has been described. However, the processing may be applied not only during heating but also during cooling. Furthermore, when the case where air conditioning is performed using an electric compressor during cooling is applied, the air conditioning capacity may be reduced by maintaining the air conditioning by reducing the number of revolutions of the compressor or shortening the time during which the compressor is turned on. .

It is a figure which shows the detailed structure of the vehicle air conditioner concerning embodiment of this invention. It is a flowchart which shows an example of the flow of the process at the time of performing the pre air conditioning performed by air conditioner ECU of the vehicle air conditioner concerning embodiment of this invention. It is a flowchart which shows an example of the detailed flow of the passenger | crew post-process performed by air-conditioner ECU of the vehicle air conditioner concerning embodiment of this invention.

Explanation of symbols

10 Vehicle Air Conditioner 11 Air Conditioner ECU
12 Engine ECU
DESCRIPTION OF SYMBOLS 15 Operation part 17 Remote control receiver 19 Remote control transmitter 22 Blower motor 24 Motor for mode switching damper 26 Door switch 28 Solar radiation sensor 30 Internal temperature sensor 32 Outside temperature sensor 34 Motor for outlet switching damper 36 Motor for air mix damper

Claims (4)

Ordinary air conditioning that starts the internal combustion engine when the predetermined conditions are met before the passenger rides and pre-air-conditions the vehicle interior, and air-conditions the vehicle interior based on a preset air-conditioning request when the ignition switch is on Air conditioning means capable of air conditioning;
When the occupant's boarding is detected during the pre-air conditioning by the detecting means for detecting the passenger's boarding, the internal combustion engine is stopped and the air conditioning is maintained with the air conditioning capability lower than the normal air conditioning using the battery power. Control means for controlling the air conditioning means,
A vehicle air conditioner comprising When the air-conditioning means has a blower delay function that delays the blower operation during heating until the cooling water of the internal combustion engine reaches a predetermined temperature or higher,
The control means further controls the air conditioning means so as to perform the air blowing operation while prohibiting the air blowing delay function even when the cooling water of the internal combustion engine is lower than a predetermined temperature during the preliminary air conditioning. The vehicle air conditioner according to claim 1, wherein   The said control means further controls the said air-conditioning means so that an air-conditioning is stopped after progress for a predetermined time after a passenger | crew's boarding is detected by the said detection means during the said prior air-conditioning. The vehicle air conditioner according to claim 2.   4. The air conditioning device according to claim 1, wherein the air conditioning unit performs air conditioning by selecting an air inlet and an air outlet that prioritize air conditioning in the passenger compartment when the preliminary air conditioning is performed. The vehicle air conditioner according to Item.

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