WO2005087524A1 - 車両用空調装置 - Google Patents
車両用空調装置 Download PDFInfo
- Publication number
- WO2005087524A1 WO2005087524A1 PCT/JP2005/004338 JP2005004338W WO2005087524A1 WO 2005087524 A1 WO2005087524 A1 WO 2005087524A1 JP 2005004338 W JP2005004338 W JP 2005004338W WO 2005087524 A1 WO2005087524 A1 WO 2005087524A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- refrigerant
- vehicle
- temperature
- refrigerant temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00828—Ventilators, e.g. speed control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
Definitions
- the present invention relates to a vehicle air conditioner, and more particularly to a vehicle air conditioner suitable for an electric vehicle or a fuel cell vehicle (hereinafter, referred to as an electric vehicle or the like).
- An object of the present invention is to provide a vehicle air conditioner that can appropriately control conditioned air so that a driver or the like does not feel uncomfortable when the refrigerant temperature is low.
- a first aspect of the present invention is a vehicle air conditioner for heating a vehicle interior by blowing warmed air into a vehicle interior using a refrigerant as a heat source, wherein the temperature of the refrigerant (hereinafter referred to as refrigerant temperature)
- refrigerant temperature detection device When the refrigerant temperature detected by the refrigerant temperature detection device has reached a specified value, air is blown into the vehicle cabin at a normally set air volume, and when the refrigerant temperature reaches the specified value.
- a control device for restricting the blowing of air into the vehicle cabin when not in use.
- control device is configured to control a low temperature determined according to the refrigerant temperature until the refrigerant temperature detected by the refrigerant temperature detection device reaches a specified value. Air may be blown into the cabin according to the air volume.
- control device keeps air flowing into the vehicle cabin at a low air volume determined according to the elapsed time from the start of activation of the present device until the refrigerant temperature detected by the refrigerant temperature detecting device reaches a specified value. You can make it blow out.
- control device is configured to control the low air volume determined according to the refrigerant temperature and the elapsed time from the start of activation of the present device until the refrigerant temperature detected by the refrigerant temperature detection device reaches a specified value. Air may be blown into the vehicle cabin with the larger airflow among the low airflows determined according to the above.
- the air volume is set to the larger one of the low air volume determined according to the refrigerant temperature and the low air volume determined according to the elapsed time. Thereby, the rise of the room temperature can be further accelerated.
- a second aspect of the present invention is a vehicle air conditioner for heating a vehicle interior by blowing at least one of air heated using a refrigerant as a heat source and air heated using an engine cooling water as a heat source into the vehicle interior.
- a coolant temperature detection device for detecting the coolant temperature a coolant temperature detection device for detecting the coolant temperature (hereinafter, coolant temperature), a coolant temperature detected by the coolant temperature detection device, and the coolant temperature.
- the control device controls the vehicle at a normally set airflow with the ratio of cooling water to the heat source being variable.
- the ratio of cooling water to the heat source is set to 0 and the air volume is set into the vehicle interior at the normally set air volume. If the cooling water temperature and the coolant temperature have not reached the predetermined values, the air blowing into the vehicle cabin is restricted until either V or any of the temperatures reaches the predetermined value. Is also good.
- the control device responds to the refrigerant temperature.
- the air may be blown into the vehicle cabin with the larger or smaller air volume among the low air volume determined according to the above and the low air volume determined according to the cooling water temperature.
- the control device responds to the refrigerant temperature.
- the air with the largest air volume is introduced into the passenger compartment. You can blow it out.
- FIG. 1 is a schematic configuration diagram of a vehicle air conditioner according to a first embodiment.
- FIG. 2 is a flowchart showing a routine of blower fan control (1) by a controller according to the first embodiment.
- FIG. 3 is off port 1 ⁇ Chiya 1 ⁇ Bok showing a routine of the blower fan control (2) by the controller of the first embodiment.
- FIG. 4 is a graph showing a relationship between a refrigerant temperature and a fan speed.
- FIG. 5 is a flowchart showing a routine of blower fan control (3) by the controller according to the first embodiment.
- FIG. 6 is a graph showing the relationship between the elapsed time of the air conditioner starting force and the fan speed.
- FIG. 7 is a flowchart showing a routine of blower fan control (4) by the controller according to the first embodiment.
- FIG. 8 is a schematic configuration diagram of a vehicle air conditioner according to a second embodiment.
- FIG. 9 is a flowchart showing a routine of blower fan control (5) by the controller of the second embodiment.
- FIG. 10 is a flowchart illustrating a routine of blower fan control (6) performed by the controller according to the second embodiment.
- FIG. 11 is a flowchart illustrating a routine of blower fan control (7) by a controller according to the second embodiment.
- FIG. 12 is a graph showing the relationship between cooling water temperature and fan speed.
- FIG. 13 is a flowchart showing a routine of blower fan control (8) by the controller of the second embodiment.
- FIG. 14 is a schematic configuration diagram showing another configuration example of a vehicle air conditioner to which the blower fan control of the second embodiment can be applied.
- FIG. 1 is a schematic configuration diagram of the vehicle air conditioner according to the first embodiment.
- the vehicle air conditioner of the present embodiment is provided with a heating cycle (indicated by ⁇ in the figure) for circulating carbon dioxide gas as a refrigerant and exchanging heat between the refrigerant and air.
- the expansion valve 104, the outdoor heat exchanger 105, and the accumulator 106 are connected to each other by piping in this order, and are configured to circulate between the refrigerant compressed by the compressor 101.
- the compressor 101 obtains a driving force from a motor (not shown), compresses carbon dioxide in a gaseous state, and discharges it as a high-temperature and high-pressure refrigerant.
- the sub heat exchanger 102 is disposed in the air conditioning duct 118, and heats the conditioned air blown from the blower fan 107 by the refrigerant supplied from the compressor 101.
- An air mix door 108 whose opening (mixing ratio) is freely controlled by a controller 117 is provided on the front surface of the sub heat exchanger 102.
- the air mix door 108 is rotated downward by a predetermined amount according to the required heating temperature (mixing ratio 0). — 100%), it is controlled to rotate upward (mixing ratio 0%) when the air conditioning air is not heated.
- a refrigerant temperature sensor 116 for detecting a refrigerant temperature is connected to an outlet pipe of the sub heat exchanger 102.
- the installation position of the refrigerant temperature sensor 116 may be any location where the refrigerant discharge locus of the compressor 101 is also at a high temperature and high pressure up to the inlet of the expansion valve 104.
- the expansion valve 104 decompresses (expands) the high-pressure refrigerant sent from the sub heat exchange 102 via the internal heat exchange 103 and outputs the refrigerant.
- the outdoor heat exchange 105 exchanges heat between the low-pressure refrigerant output from the expansion valve 104 and the outside air, and absorbs heat.
- Accumulator 106 separates the refrigerant discharged from outdoor heat exchanger 105 into gas and liquid.
- the blower fan 107 generates air-conditioned air having an air volume according to the voltage level instructed by the controller 117 described later.
- the high-temperature and high-pressure refrigerant compressed by the compressor 101 is sent to the sub heat exchanger 102, where the conditioned air is heated by heat exchange. Thereafter, the refrigerant bypasses the outdoor heat exchanger 105, flows to the solenoid valve 114 (the three-way valve 115 is closed), and is sent to the expansion valve 104 via the internal heat exchange 103. Then, after the pressure is reduced by the expansion valve 104, the heat is exchanged (absorbed) with the outside air by the outdoor heat exchange 105, and further, the air returns to the compressor 101 via the accumulator 106 and the internal heat exchanger 103 from the three-way valve 115.
- a cooling cycle ( ⁇ in the figure) is provided separately.
- the compressor 101, sub heat exchange ⁇ 102, outdoor heat exchange ⁇ 105, expansion valve 109, indoor heat exchanger 110, accumulator 106, and internal heat exchange 103 are connected by piping in this order. Subsequently, the refrigerant compressed by the compressor 101 is circulated between them.
- the expansion valve 109 decompresses (expands) the high-pressure refrigerant sent from the internal heat exchange 103 and outputs it.
- the internal heat exchanger 103 exchanges heat between the refrigerant radiated by the outdoor heat exchanger 105 and the refrigerant evaporated by the indoor heat exchanger 110.
- the indoor heat exchange 110 is disposed in the air conditioning duct 118, and is used to cool the conditioned air blown out from the blower fan 107 by the low-temperature and low-pressure refrigerant decompressed (expanded) by the expansion valve 109. ⁇ .
- the indoor heat exchanger 110 heat is exchanged with the refrigerant decompressed by the expansion valve 109, and cooling air is supplied to the vehicle interior.
- a solenoid valve 114 and a three-way valve 115 are connected to the piping that communicates the heating cycle and the cooling cycle.
- the controller 117 is configured by a microcomputer including a CPU, a ROM, and a RAM.
- the controller 117 fetches various data such as a refrigerant temperature sensor 116 and various data such as a timer (not shown) periodically or as needed, and stores the blower fan control (1)-(4) program stored in the ROM.
- various data such as a refrigerant temperature sensor 116 and various data such as a timer (not shown) periodically or as needed, and stores the blower fan control (1)-(4) program stored in the ROM.
- switching of the solenoid valve 114 and the three-way valve 115, air volume of the blower fan 107 (hereinafter, referred to as fan speed), opening of the air mix door 108, and the like are controlled.
- the controller 117 starts a blower fan control (1) routine upon activation of the air conditioner, and first determines in step S1 whether the fan speed is in the AUTO control.
- the AUTO control is a control for setting an optimum fan speed from a set temperature or a vehicle interior temperature in a certain or more refrigerant temperature range.
- step S1 If the control is not the AUTO control in step S1, the process proceeds to step S5, and the blower fan 107 is controlled at the fan speed of the level specified by the user.
- step S2 determines whether the refrigerant temperature detected by the refrigerant temperature sensor 116 is equal to or higher than tp3 (specified value). Judge. Here, if the refrigerant temperature is equal to or higher than tp3, the process proceeds to step S3, and normal AUTO control is performed.
- the refrigerant temperature tp3 is a boundary value that determines whether or not the blower fan control (1) is performed according to this routine.
- step S3 when the temperature exceeds the refrigerant temperature tp3, the air-conditioning air having a temperature that does not cause discomfort to the driver or the like is blown, so that the blower fan 107 is controlled at the fan speed by the normal AUTO control.
- the refrigerant temperature is lower than tp3 in step S2, the process proceeds to step S4 and the fan speed is kept OFF. In this case, unpleasant cold air is not blown from the outlet.
- the controller 117 controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S5.
- blower fan control (1) when the refrigerant temperature is low, the fan speed is turned off, so that unpleasant cool air is not blown out compared to the conventional technology in which air is blown immediately after the air conditioner is started. Therefore, appropriate blower fan control can be performed for the driver and the like in the vehicle cabin.
- FIG. 4 is a graph showing the relationship between the refrigerant temperature and the fan speed.
- step S2 if the refrigerant temperature is less than the predetermined value tp3 in step S2, the process proceeds to step S14, and the fan speed corresponding to the refrigerant temperature detected by the refrigerant temperature sensor 116 is determined. Acquire the graph force of Fig. 4 and set this fan speed.
- the fan speed 0-2 is set to a small air volume range that is not uncomfortable to the driver or the like, and the fan speed is set stepwise within a range up to the refrigerant temperature tpO-tp3.
- the fan speed is set to 0 when the refrigerant temperature is less than one tpl, the fan speed is set to 1 when the refrigerant temperature is less than tpl-tp2, and the fan speed is set to 2 when the refrigerant temperature is less than tp2-tp3.
- the shaded area indicates the area of the refrigerant temperature and the fan speed in which the AUTO control is performed.
- the controller 117 controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S14.
- the blower fan control (2) even when the refrigerant temperature is low, a small amount of air is blown without discomfort to the driver or the like. Unpleasant cold air is not blown out compared with the operation, and the rise of the room temperature can be accelerated compared to the case where the blowing is stopped until the refrigerant temperature reaches a certain level or more. , More appropriate blower fan control can be performed.
- FIG. 6 is a graph showing the relationship between the elapsed time of the air conditioner starting force and the fan speed.
- step S24 Obtain the corresponding fan speed from the graph in Figure 6 and set it to this fan speed.
- the fan speed 0-2 is set as a small air volume range that does not cause discomfort to the driver, etc., and the fan speed is set in steps up to the elapsed time tO-3. ing.
- the fan speed is set to 0 when the elapsed time is less than tO-tl, the fan speed is set to 1 when the elapsed time is less than t1-t2, and the fan speed is set to 2 when the elapsed time is less than t2-3, and the fan speed is set to the set fan speed. Controls fan 107.
- the controller 117 controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S24.
- blower fan control (3) even when the refrigerant temperature is low, a small amount of air is blown without discomfort to the driver or the like. No unpleasant cold air is blown out compared to surgery. Even if the refrigerant temperature rises slowly after the air conditioner is started, the air is blown at a low air flow after the elapse of the predetermined time, so that anxiety of a driver or the like who does not operate after the air conditioner is started can be eliminated. In addition, since the rise of the room temperature can be accelerated as compared with the case where the blowing is stopped until the refrigerant temperature reaches a certain level or more, more appropriate blower fan control can be performed for the driver in the vehicle interior. it can.
- step S34 the process proceeds to step S34 and thereafter, and the fan speed fre_fan corresponding to the refrigerant temperature detected by the refrigerant temperature sensor 116 Is obtained from the graph of FIG.
- the process proceeds to step S35, and the fan speed ti me-fan corresponding to the elapsed time after the start of the air conditioner measured by a timer (not shown) is obtained from the graph of FIG.
- step S36 the fan speed fre-fan and the fan speed time-fan are compared to determine which is greater.
- the fan speed fr e— fan is larger than the fan speed time— fan!
- step S37 the fan speed is set to fre—fan, and the blower fan 107 is controlled so as to have the fan speed. I do. If the fan speed time-fan is higher than the fan speed fre-fan in step S36, the process proceeds to step S38, where the fan speed is set to time-fan, and the blower fan 107 is controlled so as to reach this fan speed.
- the controller 117 controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S38.
- blower fan control (4) even when the refrigerant temperature is low, a small amount of air is blown without discomfort to the driver or the like. No unpleasant cold air is blown out compared to surgery. Even if the refrigerant temperature rises slowly after the air conditioner is started, the air is blown at a low air flow after the elapse of the predetermined time, so that anxiety of a driver or the like who does not operate after the air conditioner is started can be eliminated.
- Fan control can be performed.
- FIG. 8 is a schematic configuration diagram of a vehicle air conditioner according to the second embodiment, and the same parts as those in FIG. 1 are denoted by the same reference numerals.
- the bold line indicates the path of the heating cycle, and the dashed line indicates the path of the cooling cycle (description is omitted).
- the vehicle air conditioner of this embodiment is applied to an engine vehicle, and includes engine cooling water and carbon dioxide gas.
- engine cooling water and carbon dioxide gas As a refrigerant and a heat source.
- the configuration of this embodiment is also applicable to the R134a refrigerant, in which case the internal heat exchange 103 is not an essential requirement.
- the heater core 119 is arranged in the air conditioning duct 118, and the engine cooling water flowing through the cooling path of the engine 120 is circulated through the pipe.
- the heater core 119 heats the conditioned air blown from the blower fan 107 by the engine cooling water.
- a water temperature sensor 121 for detecting a temperature of the engine cooling water (hereinafter, appropriately referred to as a cooling water temperature) is connected to the pipe of the engine cooling water.
- the air mix door 108 is rotated downward by a predetermined amount according to the required heating temperature at that time (mixing ratio 0-100%).
- the air conditioning wind is not heated, it is controlled to rotate upward (mixing ratio 0%). That is, the mixing ratio is controlled in a range of 0 to 100% as a ratio of using the engine cooling water as a heat source.
- the connection between the compressor 101 and the outdoor heat exchanger 105, the internal heat exchanger 103, and the indoor heat exchanger 110 is switched by a four-way valve 122.
- the high-temperature and high-pressure refrigerant compressed by the compressor 101 is sent from the four-way valve 122 to the indoor heat exchanger 110, where the air is heated to heat the conditioned air.
- the conditioned air is heated in the heater core 119 downstream of the indoor heat exchanger 110 as needed.
- the refrigerant exchanges heat with the outside air (heat absorption) through the outdoor heat exchanger 105, and returns to the compressor 101 via the four-way valve 122, the accumulator 106, and the internal heat exchanger 103.
- the controller 117A in the present embodiment is configured by a micro computer including a CPU, a ROM, and a RAM.
- the controller 117A takes in various data such as a refrigerant temperature sensor 116 and a water temperature sensor 121, and various powers such as a timer (not shown) periodically or as needed, and controls a blower fan stored in ROM (5) —
- An arithmetic process is executed based on the program of (8) and various data to control the switching of the four-way valve 122, the fan speed of the blower fan 107, the opening of the air mix door 108, and the like.
- step S1 it is determined whether or not the fan speed is the AUTO control.
- the process proceeds to step S5, and the blower fan 107 is controlled at the fan speed of the level specified by the user.
- step S2 it is determined whether or not the refrigerant temperature detected by the refrigerant temperature sensor 116 is equal to or higher than tp3 (a specified value). If the refrigerant temperature is equal to or higher than tp3, the process proceeds to step S3 to perform normal AUTO control. If the refrigerant temperature is tp3 or more, the blower fan 107 is controlled at the fan speed based on normal AUTO control, because the conditioned air is blown at a temperature that does not cause discomfort to the driver or the like.
- step S2 the process proceeds to step S32, and it is determined whether the cooling water temperature detected by the water temperature sensor 121 is equal to or higher than tp (specified value).
- tp the cooling water temperature
- step S3 normal AUTO control is performed. If the cooling water temperature is tp3 'or higher, the blower fan 107 is controlled at the fan speed based on the normal AUTO control because the conditioned air is blown at a temperature that is not uncomfortable for the driver or the like. If the cooling water temperature is lower than tp3 ⁇ in step S32, the process proceeds to step S4 to keep the fan speed OFF. In this case, unpleasant cold air is not blown out and blown out.
- the controller 117A controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S32.
- blower fan control (5) the refrigerant temperature and the cooling water temperature are low! In this case, the fan speed is turned off. Since no air is blown out, appropriate blower fan control can be performed for the driver and the like in the vehicle cabin.
- step S1 if the control is the AUTO control in step S1, the process proceeds to step S32, and it is determined whether or not the cooling water temperature detected by the water temperature sensor 121 is equal to or higher than tp3 ⁇ . If the cooling water temperature is equal to or higher than tp3 ⁇ , the process proceeds to step S43, where the mixture ratio is variably set at 0-100%, and then the process proceeds to step S3 to perform normal AUTO control. in this way, When the cooling water temperature is high to some extent, the room temperature can be warmed more quickly by appropriately setting the mixing ratio according to the cooling water temperature.
- step S32 If it is determined in step S32 that the temperature is lower than the cooling water temperature tp3 ', the process proceeds to step S2, and it is determined whether the refrigerant temperature detected by the refrigerant temperature sensor 116 is equal to or higher than tp3. If the refrigerant temperature is equal to or higher than tp3, the process proceeds to step S42 to fix the mixture ratio to 0%, and then proceeds to step S3 to perform normal AUTO control. As described above, when the cooling water temperature is low and the refrigerant temperature is somewhat high, the mixture ratio is set to 0%, and by preventing the cold air-conditioning air from hitting the heater core 119, the room temperature can be warmed more quickly. If it is determined in step S2 that the temperature is lower than the refrigerant temperature tp3, the process proceeds to step S4 to maintain the fan speed OFF. In this case, unpleasant cold air blows out and does not blow
- the controller 117A controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S43.
- blower fan control (6) the cooling water temperature and the refrigerant temperature are low! In this case, the fan speed is turned off. Appropriate blower fan control can be performed for a driver or the like in the vehicle cabin that is not blown out. Further, since the mixture ratio is appropriately set according to the cooling water temperature / the refrigerant temperature, the rise of the room temperature can be hastened. Therefore, more appropriate blower fan control can be performed for a driver or the like in the vehicle compartment.
- FIG. 12 is a graph showing the relationship between the cooling water temperature and the fan speed.
- step S1 if the control is the AUTO control in step S1, the process proceeds to step S2, and it is determined whether or not the refrigerant temperature detected by the refrigerant temperature sensor 116 is tp3 or more.
- the process proceeds to step S3 to perform normal AUTO control.
- step S32 If the coolant temperature is lower than tp3 in step S2, the process proceeds to step S32, and it is determined whether the coolant temperature detected by the water temperature sensor 121 is equal to or higher than tp3 ⁇ .
- the cooling water temperature is tp3 ⁇ or higher, the process proceeds to step S3.
- the blower fan 107 is controlled at the fan speed based on the normal AUTO control, since the conditioned air is blown at a temperature at which the driver does not feel uncomfortable.
- step S32 If it is determined in step S32 that the temperature is lower than the cooling water temperature tp3 ⁇ , the process proceeds to step S54, and the fan speed fre-fan corresponding to the refrigerant temperature detected by the refrigerant temperature sensor 116 is also acquired in the graph of FIG. Next, the process proceeds to step S55, and the fan speed water-fan corresponding to the cooling water temperature detected by the water temperature sensor 121 is obtained from the graph of FIG.
- the fan speed 0-2 is set as a small air volume range that does not make the driver or the like uncomfortable, and the fan speed is gradually increased in a range up to the cooling water temperature tp 0'-tp3 '. Speed is set.
- the fan speed is set to 0 for cooling water temperature tp 0 '— tp
- the fan speed is set to 1 for cooling water temperature tp -tp2'
- the fan speed is set to 2 for cooling water temperature tp2 ⁇ -tp3 '.
- step S56 the fan speed fre-fan and the fan speed water-fan are compared to determine which is greater.
- the process proceeds to step S57, where the fan speed is set to fre_fan, and the blower fan 107 is controlled so as to reach the fan speed.
- step S58 the fan speed is set to water-fan, and the blower fan 107 is controlled to have the same fan speed.
- the controller 117A controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S58.
- blower fan control (7) even if the refrigerant temperature or the cooling water temperature is low, a small amount of air is blown so as not to be uncomfortable for the driver or the like. Unpleasant cold air is not blown out compared to the conventional technology, and the fan speed set according to the refrigerant temperature or the fan speed set according to the cooling water temperature is set to the larger fan speed. As a result, the rise of the room temperature can be further accelerated, so that more appropriate blower fan control can be performed for the driver and the like in the vehicle compartment.
- FIG. 12 shows the relationship between cooling water temperature and fan speed.
- step S54 acquisition of the fan speed fre—fan corresponding to the refrigerant temperature
- step S55 acquisition of the fan speed water—fan corresponding to the cooling water temperature
- step S65 in which the fan speed (time—fan) according to the elapsed time after system startup measured by a timer (not shown) is obtained from the graph of FIG. 6 (however, the horizontal axis represents the elapsed time after system startup).
- step S66 the fan speed time—fan, the fan speed fre—fan, and the fan speed water—fan are compared to determine which is the maximum.
- the process proceeds to step S67, where the fan speed time-fan is set, and the blower fan 107 is controlled so as to reach this fan speed.
- the fan speed fre_fan is the maximum
- the process proceeds to step S57, where the fan speed is set to fre_fan, and the blower fan 107 is controlled to have this fan speed.
- step S58 the fan speed water-fan is set, and the blower fan 107 is controlled so as to reach this fan speed.
- the controller 117A controls the fan speed of the blower fan 107 while rotating through the loop from step S1 to step S67.
- blower fan control (8) even when the refrigerant temperature or the cooling water temperature is low !, a small amount of air is blown so as not to make the driver or the like uncomfortable. In addition, unpleasant cold air is not blown out compared to the conventional technology, and the fan speed determined by the refrigerant temperature, the fan speed determined by the cooling water temperature, and the fan speed determined by the elapsed time after system startup By setting the highest fan speed, the rise of the room temperature can be further accelerated, so that more appropriate fan control can be performed for a driver or the like in the vehicle compartment.
- FIG. 14 is a schematic configuration diagram showing another configuration example of a vehicle air conditioner to which the blower fan control of the second embodiment can be applied, and the same reference numerals are used to designate the same parts as those in FIGS. 1 and 8. (However, some connections and arrangements are different).
- This embodiment is applied to an engine vehicle, and uses engine cooling water and R134a refrigerant as heat sources (however, the refrigerant is not limited to R134a).
- the sub heat exchange 102 and the heater 119 119 is located.
- the sub heat exchanger 102 is used at the start of heating, and is configured such that the three-way valve 115 is switched when the refrigerant temperature rises! RU
- the refrigerant compressed by the compressor 101 is sent from the three-way valve 115 to the sub-heat exchanger 102 through a dashed line, and the conditioned air blown out from the blower fan 107 is added by heat exchange. Warm up.
- the refrigerant is sent to the indoor heat exchanger 110, and further returns to the compressor 101 via the accumulator 106.
- the engine cooling water is sent to the heater core 119 to heat the conditioned air.
- the mixing ratio of the air mix door 108 is fixed at 100%.
- the three-way valve 115 switches the path from the compressor 101 to the outdoor heat exchange 105 side.
- the mixing ratio of the air mix door 108 is set to be variable from 0 to 100%.
- the controller 117B is configured by a microcomputer including a CPU, a ROM, and a RAM.
- the controller 117B receives various data, such as a refrigerant temperature sensor 116 and a water temperature sensor 121, and various data such as a timer (not shown) periodically or as needed, and controls the blower fan stored in the ROM (5).
- An arithmetic process is executed based on the programs (7) and (8) and these various data to control the switching of the three-way valve 115, the fan speed of the blower fan 107, the opening of the air mix door 108, and the like.
- the blowing of air into the vehicle interior is restricted, so that unpleasant cool air may be blown out compared to the conventional technology that blows air immediately after the device is started. Absent.
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Abstract
Description
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/592,707 US20080229768A1 (en) | 2004-03-17 | 2005-03-11 | Air Conditioner for Vehicle |
| EP05720609A EP1726461A4 (en) | 2004-03-17 | 2005-03-11 | AIR CONDITIONER FOR VEHICLES |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-076013 | 2004-03-17 | ||
| JP2004076013A JP2005262948A (ja) | 2004-03-17 | 2004-03-17 | 車両用空調装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005087524A1 true WO2005087524A1 (ja) | 2005-09-22 |
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ID=34975438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/004338 Ceased WO2005087524A1 (ja) | 2004-03-17 | 2005-03-11 | 車両用空調装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20080229768A1 (ja) |
| EP (1) | EP1726461A4 (ja) |
| JP (1) | JP2005262948A (ja) |
| WO (1) | WO2005087524A1 (ja) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059886A1 (de) * | 2008-12-03 | 2010-06-10 | GM Global Technology Operations, Inc., Detroit | Belüftungssystem für ein Kraftfahrzeug, Verfahren zur Klimatisierung eines Kraftfahrzeuges |
| US20100190429A1 (en) * | 2009-01-26 | 2010-07-29 | Ford Global Technologies, Llc | Variable hvac airflow control |
| JP2011020478A (ja) * | 2009-07-13 | 2011-02-03 | Denso Corp | 車両用空調装置 |
| JP5126173B2 (ja) * | 2009-07-13 | 2013-01-23 | 株式会社デンソー | 車両用空調装置 |
| JP5310323B2 (ja) * | 2009-07-06 | 2013-10-09 | 株式会社デンソー | 車両用空調装置の制御方法 |
| JP5578141B2 (ja) | 2011-07-05 | 2014-08-27 | 株式会社デンソー | 車両用空調装置 |
| EP2878468B1 (en) * | 2012-07-24 | 2018-06-06 | Japan Climate Systems Corporation | Air conditioning device for vehicle |
| JP6049339B2 (ja) * | 2012-07-24 | 2016-12-21 | 株式会社日本クライメイトシステムズ | 車両用空調装置 |
| US20140190678A1 (en) * | 2013-01-07 | 2014-07-10 | Ford Global Technologies, Llc | Personalized vehicle climate control |
| JP6197745B2 (ja) * | 2013-07-31 | 2017-09-20 | 株式会社デンソー | 車両用冷凍サイクル装置 |
| KR101610539B1 (ko) * | 2014-11-13 | 2016-04-07 | 현대자동차주식회사 | 차량용 공조장치의 증발기 표면의 미생물 번식 억제 장치 및 방법 |
| JP6323489B2 (ja) * | 2015-08-04 | 2018-05-16 | 株式会社デンソー | ヒートポンプシステム |
| CN108136873B (zh) * | 2015-10-01 | 2021-02-23 | 株式会社电装 | 车辆用空调装置 |
| JP2017165139A (ja) * | 2016-03-14 | 2017-09-21 | カルソニックカンセイ株式会社 | 空調装置 |
| JP6705387B2 (ja) * | 2017-01-16 | 2020-06-03 | トヨタ自動車株式会社 | 蓄電装置の冷却システム |
| JP6791075B2 (ja) * | 2017-09-19 | 2020-11-25 | トヨタ自動車株式会社 | 蓄電装置の冷却システム |
| DE102019213860A1 (de) * | 2019-09-11 | 2021-03-11 | Mahle International Gmbh | Klimatisierungssystem für ein Kraftfahrzeug |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258129A (ja) | 1988-08-24 | 1990-02-27 | Agency Of Ind Science & Technol | 論理型プログラム処理方式 |
| JPH0232493Y2 (ja) * | 1985-05-14 | 1990-09-04 | ||
| JP2003320838A (ja) * | 2002-04-26 | 2003-11-11 | Denso Corp | 車両用空調装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3688523T2 (de) * | 1985-11-27 | 1994-01-13 | Nippon Denso Co | Kraftfahrzeugklimaanlage. |
| JPH0761763B2 (ja) * | 1987-12-21 | 1995-07-05 | 日産自動車株式会社 | 自動車用空調装置 |
| JP3587548B2 (ja) * | 1994-04-19 | 2004-11-10 | 日産自動車株式会社 | 車両用ヒートポンプ式冷暖房装置 |
| JP3707119B2 (ja) * | 1995-12-25 | 2005-10-19 | 株式会社デンソー | 車両用空調装置 |
| US6105666A (en) * | 1997-10-30 | 2000-08-22 | Calsonic Corporation | Vehicular air conditioning apparatus |
-
2004
- 2004-03-17 JP JP2004076013A patent/JP2005262948A/ja active Pending
-
2005
- 2005-03-11 US US10/592,707 patent/US20080229768A1/en not_active Abandoned
- 2005-03-11 WO PCT/JP2005/004338 patent/WO2005087524A1/ja not_active Ceased
- 2005-03-11 EP EP05720609A patent/EP1726461A4/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232493Y2 (ja) * | 1985-05-14 | 1990-09-04 | ||
| JPH0258129A (ja) | 1988-08-24 | 1990-02-27 | Agency Of Ind Science & Technol | 論理型プログラム処理方式 |
| JP2003320838A (ja) * | 2002-04-26 | 2003-11-11 | Denso Corp | 車両用空調装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1726461A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1726461A1 (en) | 2006-11-29 |
| US20080229768A1 (en) | 2008-09-25 |
| EP1726461A4 (en) | 2009-04-01 |
| JP2005262948A (ja) | 2005-09-29 |
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