JPH0415119A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To improve pleasantness in a car room by lowering a discordant noise, by making a constitution so that a desired blowing out temperature and a blowing out air quantity may be obtained by using three setting means, and also making a constitution in which the blowing out air quantity is selectable in the two states of the maximum air quantity or automatic control quantities relating to blowing out temperatures or the like. CONSTITUTION:A setting temperature is inputted by means of an inputting means 1. Also, when the setting temperature thus inputted is within a predetermined range, a blowing out temperature and a blowing out air quantity are set at proper values which are in accordance with the setting temperature, by means of the 1st setting means 2. In addition, when the setting temperature is set at the 1st value which is outside of the predetermined range, the blowing out temperature is set at the highest temperature or the lowest one by means of the 2nd setting means 3, and also the blowing out air quantity is set at a proper value which is in accordance with the 1st value, by means of the 2nd means 3. Meanwhile, when the setting temperature is set at the 2nd value which is outside of the predetermined range, the blowing out temperature is set at the highest or the lowest temperature by means of the 3rd setting means 4, and also the blowing out air quantity is set at the maximum air quantity by means of the 3rd means 4. And the blowing out temperature and the blowing out air quantity are respectively regulated by means 5, 6 in accordance with output signals from the above respective setting means 2-4.

Description

[Detailed description of the invention]

Object of the Invention J (Industrial Field of Application) The present invention relates to a vehicle air conditioner, and particularly to a vehicle air conditioner that can adjust the environment in a vehicle interior to be more comfortable by reducing noise. (Prior Art) In recent years, various air conditioner devices for vehicles have been developed.These conventional air conditioner devices consist of an evaporator for cooling air and a heater core provided downstream of the evaporator. In addition, an air mix door (hereinafter referred to as A/MIX) is provided between the evaporator and the heater core, that is, in front of the heater core.
By adjusting the amount of air passing through the heater core according to the opening degree of /MIX, the temperature of the air blown into the vehicle interior is adjusted. Furthermore, conventional air conditioner devices have an operating section located near the driver's seat, and by operating this operating section, the temperature can be set to any temperature between, for example, 1-8°C to 32°C. When you operate this operation part and set the desired temperature, the opening degree of the A/M I
1II, the temperature inside the vehicle is controlled to the set temperature. When 18°C, which is the lowest temperature that can be set using the operation unit, is set, the flow rate of air blown out from the outlet, that is, the blowout air volume, is set to the maximum value, and the
The opening degree of /MIX is controlled to the opening degree (hereinafter referred to as F/C0LD) that brings the temperature inside the vehicle to the lowest temperature. Furthermore, when the maximum temperature that can be set using the operation panel is set at 32°C, the blowout air volume is set to the maximum value, and the opening degree of A/MIX is adjusted so that the temperature inside the vehicle reaches its maximum temperature. (hereinafter referred to as F/HOT). (Problems to be Solved by the Invention) However, when the occupant sets the temperature to 18° C. or 32° C. using the operating unit, two cases are usually assumed. In other words, if you want to set the temperature inside the vehicle to exactly 18 degrees Celsius instead of 17 degrees Celsius, or exactly 32 degrees Celsius instead of 33 degrees Celsius, you may want to set it to 18 degrees Celsius or 32 degrees Celsius.
In order to set the temperature as low or as high as possible due to ``very hot'' or ``very cold,''
18℃ as the minimum temperature or 32℃ as the maximum temperature
℃ may be set. For example, when the temperature inside the vehicle is set at 18° C., the user may desire an appropriate air volume according to the temperature, and may not desire to maximize the air volume. Therefore, when the amount of air blown is at its maximum, there are problems such as excessive air blown and noise in the vehicle interior caused by an unexpected increase in the amount of air blown, which is particularly harsh on the ears. The present invention has been made in view of the above problems, and even when the blowout temperature is set to the lowest or lowest temperature, the blowout air volume can be adjusted to an appropriate air volume according to the temperature, thereby making the environment inside the vehicle more comfortable. The purpose of the present invention is to provide a dual-purpose air conditioner that can be adjusted.

[Structure of the invention]

(Means for Solving the Problems) The means provided by the present invention for achieving the second objective are as follows:
As shown in FIG. 1, a manual means 1 for inputting a set temperature, and when the set temperature inputted from the human power means 1 is within a predetermined range, the blowing temperature and the blowing air volume are set to appropriate values according to the set temperature. a first setting means 2 that outputs a signal to set the
When the set temperature is set to a first value outside the predetermined range, output a signal to set the blowing temperature to the maximum or minimum temperature, and set the blowing air volume to an appropriate value according to the first value. second setting means 3 for outputting signals for each
and when the set temperature is set to a second value outside the predetermined range, outputs a signal to set the blowing temperature to the maximum or minimum temperature, and outputs a signal to set the blowing air volume to the maximum air volume. a third setting means 4; and a temperature adjusting means 5 for adjusting the blowing temperature in accordance with an output horn signal from the second setting means 3 or the third setting means 4; First setting means 2, second setting means 3
Alternatively, the vehicle air conditioner according to the present invention is configured to include an air volume adjusting means 6 that adjusts the blowing air volume in response to an output signal from the third setting means 4. A manual power means 1, a first setting means 2, a second setting means 3, and a third setting means 4 for setting the blowing temperature and the blowing air volume according to the set temperature manually inputted from the human power means 1. When the set temperature input from the input means 1 is within a predetermined range, the first setting means 2 outputs a signal for setting the blowing temperature and the blowing air volume to appropriate values according to the set temperature. Further, when the set temperature input from the input means 1 is a first value outside the predetermined range, the second setting means 3 outputs a signal to set the blowing temperature to the maximum or minimum temperature, and also outputs a signal to set the blowing air temperature to the maximum or minimum temperature. outputs a signal for setting the temperature to an appropriate value according to the first value.Furthermore, when the set temperature manually entered from the input means 1 is a second value outside the predetermined range, the third setting means 4 Outputs a signal for setting the blowing temperature to the maximum or minimum temperature, and outputs a signal to set the blowing air volume to the maximum air volume.These first setting means 2, second setting means 3, and third setting means Temperature adjustment means 5 adjusts the blowout temperature according to the output signal from 4, and air volume adjustment means 6 adjusts the blowout air volume.Therefore, when it is "very hot" or "very cold", The blowout air volume can be set to the maximum airflow at the lowest possible blowout temperature or the highest blowout temperature, and separately and independently, the blowoff airflow can be set to the appropriate airflow when the blowout temperature is the highest or lowest temperature. Appropriate air conditioning can be performed depending on the situation, and noise can be reduced. (Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIG. 2, the vehicle air conditioner is composed of an air conditioning unit 11, a control panel 13, and a control unit 12 for controlling the air conditioning unit 11 according to information from the control panel 13. The air conditioner unit 11 also includes an evaporator for cooling air, a proa fan for supplying air to the evaporator, and a heater core provided downstream of the evaporator. A/MIX is provided on the front, and this A/M
By controlling the opening degree of IX to the low temperature side or high temperature side, the amount of air passing through the heater core is adjusted. Therefore, by controlling the opening degree of A/M I X, the temperature of the air blown out from the outlet can be adjusted. In addition, by adjusting the rotation speed of the proa fan,
The amount of air blown into the mold chamber is adjusted. Next, the control panel 13 will be explained with reference to FIG. The switch 15 is a switch for stopping the operation of the air conditioning unit 11. Further, the switch 17 is a switch used when cooling or dehumidification is not required, and is only used to adjust the temperature with the evaporator turned off. The switch 19 is a switch for automatically adjusting the temperature while the evaporator is operating during cooling or dehumidification. The switch 21 is a switch for manually changing the amount of air blown out from the blower 11 by controlling the proa fan. That is, each time the switch 21 is pressed, the rotation speed of the proa fan is sequentially switched to low speed, medium speed, and high speed. The switch 23 is a switch for sequentially changing the blowing mode of the air blown out from the blowing outlet. Switches 25 and 27 function as manual means for inputting a set temperature. That is, when the switch 25 is pressed continuously, the set temperature decreases by 0.5°C. Further, when the switch 27 is pressed continuously, the set temperature increases by 0.5°C. This switch 25 or 27
By operating a predetermined temperature range, for example, 18.5
You can manually set the desired temperature within the range from ℃ to 31.5℃. Further, by operating the switch 25, it is possible to set the lowest temperature that is the first value outside the temperature range, for example, 18°C. Further, by operating the switch 27, it is possible to set the maximum temperature, which is the first value outside the temperature range, to, for example, 32°C. As described above, operate the switches 25 and 27 to set an arbitrary temperature or the lowest temperature within the predetermined temperature range. When a maximum temperature of 18° C. or a maximum temperature of 32° C. is set, the blowout air volume is controlled to an appropriate air volume in accordance with the set Suita temperature, etc. Further, when manually setting a second temperature setting outside the temperature range, operate the switch 25 to set the minimum temperature of 18° C., and then operate the switch 25 continuously for a predetermined period of time or longer. As a result, the blowing temperature is set to the minimum temperature of 18° C., and the blowing air volume is controlled to be the maximum value. Similarly, when inputting a second set temperature outside the temperature range, operate the switch 27 to set the maximum temperature of 32° C., and then operate the switch 27 continuously. As a result, the blowing temperature is set to the maximum temperature of 32° C., and the blowing air volume is controlled to be the maximum value. The temperature set by this switch 25 or 27 is displayed on two display sections. Further, the two display sections display the amount of air blown and the state of the blowing mode. The switch 31 is a switch for displaying the outside air temperature outside the vehicle on the display section 29. The switch 33 is a switch for setting a so-called recirculation mode for forcibly circulating air in the vehicle interior. Further, the switch 35 is a switch for forcibly setting the defroster mode. Such a signal from the control panel 13 is given to the control unit 12, and the air conditioning unit 11 is controlled based on the control command from the control unit 12. Next, the control processing of the control unit 12 will be explained in detail with reference to FIG. In step 41, the set temperature input by the switch 25 or 27 is set to a temperature within a predetermined range, that is, 18.5
It is determined whether the temperature is within the range from .degree. C. to 31.5.degree. C., and if the set temperature is within the predetermined temperature range (hereinafter simply referred to as adjustment temperature), the process proceeds to step 47. In step 47, control regarding the opening degree of the A/MIX is executed in accordance with the set temperature set by the switch 25 or 27. Next, referring to FIG. 5, the A/MIX in step 47
The control related to the opening degree will be explained in detail. In step 71, constants A%B, C, D and E are initialized. In step 73, based on the signal from the sensor for detecting the opening degree of A/M I
Input the opening degree X of M I X. Next, step 81 is the set temperature TPTC% solar radiation Qsu
Using N and constants A, B...G, etc., calculate the deviation value S between the required blowing temperature and the current blowing temperature. Next, in step 83, the value of the deviation value S calculated in the previous step 81 is determined, and if the value of this deviation value S is less than a predetermined value -5o, the process proceeds to step 85 and the A/MIX
Control the opening degree to the low temperature side. As a result, the temperature of the air blown out from the outlet further decreases. Conversely, the value of the deviation value S is the predetermined value +S. If this is the case, the process proceeds to step 89, and the opening degree of A/MIX is controlled to the high temperature side. This further increases the temperature of the air blown out from the outlet. Further, if the value of the deviation value S is within the range of -SO to +SO in step 83, the process proceeds to step 87 and A
/MIX opening degree is maintained as it is. Referring again to FIG. 4, steps 47 to 4
Proceed to step 9 to execute control related to the amount of air blown out from the air outlet. Next, with reference to FIG. 6, the control related to the amount of air blown in step 49 will be explained in detail. In step 101, it is determined whether the switch 15 has been turned off, and if the switch 5 has been turned off, the process proceeds to step 103, where the pro fan is turned off. Further, if the switch 15 is not turned off, the process proceeds to step 105 and the fan switch, that is, the switch 2 is turned off.
1 or has been manipulated. Step 1()5
step if switch 21 is operated]
The process advances to step 07 to determine whether the rotation speed of the proa fan is set to a low speed. In step 107, if the rotational speed of the pro-a fan is low, that is, in a high speed state, the process proceeds from step 107 to step 111, and a voltage of 5V is applied to the pro-a fan. Next step 107
If the pro fan is not set to 1st speed, proceed to step 109 and set the pro fan's rotation speed to medium speed, that is, 2
Determine whether the state is set to high speed. If the pro fan is set to the second speed state in step 109, the process proceeds to step 113 and a voltage of 8.5 V is applied to the pro fan. Next, if the proa fan is not in the 1st speed state and is not in the 2nd speed state, step 109 is performed.
The process then proceeds to step 115, where a voltage of 12 V is applied to the pro-a fan and the pro-a fan is set to a high-speed operation state. Next, in step 105, if the switch 21 is in the off state, the process advances to step 133. In this step 133, the values of constants M, N, and P are initialized to predetermined values L O, MO, N O, and Po, respectively. Thereafter, the process advances from step 133 to step 139. In step 139, the reference voltage (2) to be applied to the pro-fan is determined in accordance with the value of the necessary blowout temperature XM necessary to control the vehicle interior temperature to the set temperature. To be more specific, when the value of the required blowing temperature Set to voltage. Also,
On the contrary, since the value of the required blowing temperature - set the voltage V, to the lowest voltage; Referring again to FIG. 4, if in step 41 the set temperature is not within the range of 18.5 to 31.5°C, the process proceeds to step 43 and it is determined whether the set temperature is 32°C. If the set temperature is 32° C. in step 43, the process advances to step 51. In step 51, after the set temperature is set to 32° C., it is further determined whether the switch 27 has been continuously operated for a predetermined period of time.
If the switch 27 is operated continuously beyond the predetermined time, that is, if rapid heating is set, step 5
Proceed to step 3. In step 53, as shown in FIG. 3, the characters rFHJ are displayed on the display section 29 to indicate that the temperature is high and the air volume is maximum. Another method for displaying the control state of high temperature and maximum air volume, that is, the rapid heating control state, may be to display the characters rHOT MAXJ on the display section 29, for example. Furthermore, the display unit 29 may be configured to blink the characters 35°C. In addition, if a specific beep is generated to notify that the rapid heating control state is in progress, together with the various display methods described above, or independently, the crew member can tell that the cargo is in the rapid heating control state. can be recognized. Subsequently, in step 55, the opening degree of A/MIX is fixed to the maximum open state toward the high temperature side, that is, F/HOT. As a result, the temperature of the air blown out from the outlet is set to the maximum temperature. Subsequently, in step 57, the maximum voltage is applied to the proafan to fix the proafan in a high-speed operating state. As a result, the amount of air blown out from the outlet is set to the maximum. If the switch 27 has not been pressed for a predetermined period of time in step 51, the process advances to step 59. In step 59, the opening degree of A/MIX is fixed at F/HOT. Subsequently, the process proceeds from step 59 to step 49, where the volume of air blown out from the outlet is controlled in accordance with the blowing temperature. Next, in step 43, if the set temperature is not 32°C, the process proceeds to step 45. If the set temperature is 18° C. in step 45, that is, if the lowest temperature has been set, the process proceeds to step 6]. In step 61, it is determined whether the switch 25 has been pressed continuously for more than a predetermined time while the temperature is set to the lowest temperature.If the switch 25 has not been pressed for more than a predetermined time, step 61 Proceed to 63. Step 6
In step 3, the opening degree of A/MIX is fixed to the maximum open state toward the low temperature side, that is, F/C0LD. The process proceeds from step 63 to step 4, where the volume of air blown out from the outlet is controlled in accordance with the blowing temperature. Next, in step 61, if the switch 25 is pressed continuously for more than a predetermined time, that is, if rapid cooling with low temperature and maximum air volume is set, the process proceeds to step 65. In step 65, the display section 29 is caused to display that the rapid cooling control state is in effect. For example, the characters rFCJ are displayed on the display section 29. Another method for displaying the rapid cooling control state here may be to display the characters rCOL DMA XJ on the display section 29, for example. In addition, as another display example, characters 15° C. may be displayed on two display sections. Furthermore, if a specific beep is generated to notify that the rapid cooling control state is in progress, either together with the various display examples described above or alone, the passenger can easily recognize that the rapid cooling control state is in effect. I can discuss it. Next, in step 67, the opening degree of A/MIX is set to F/C0L.
Fix it to D. Thereby, the blowing temperature of the air blown out from the blowing outlet is set to the lowest temperature. Subsequently, in step 69, the maximum voltage is applied to the proafan to fix the proafan in a high-speed operating state. As a result, the amount of air blown out from the outlet is set to the maximum. In the embodiment described above, when setting rapid heating or cooling, the switch 27 or 25 is continuously operated for a predetermined period of time or more after setting the maximum temperature of 32°C or the minimum temperature of 18°C. An appropriate method can be used without being limited to this. For example, if a dedicated switch for setting rapid heating or cooling is provided on the control panel 13, rapid heating or cooling can be easily and quickly set, and the comfort inside the vehicle can be further improved. Next, another embodiment of the control panel 13 will be described with reference to FIG. In the control panel 13 shown in FIG. 7, an operating knob 16 is configured to be slidable along a guide groove 14. In addition, the adjustment temperature from 19°C to 31°C is displayed above the guide groove 14, and the minimum temperature 18°C is displayed to the left of 19°C.
°C is displayed. Furthermore, to the left of the minimum temperature of 18℃ is r indicating rapid cooling.
FCJ is displayed. Further, the maximum temperature of 32°C is displayed on the right side of the adjusted temperature of 31°C. Further, to the right of this maximum temperature of 32° C., rFHJ indicating rapid heating is displayed. By sliding the operating knob 16 along the guide groove 14, an arbitrary adjustment temperature or minimum temperature or maximum temperature can be set. Furthermore, when the operation knobs 1 and 6 are slid to the left end, rapid cooling "FC" can be set. Moreover, when the operating knob 16 is slid to the right end, rapid heating rFHJ can be set. [Effects of the Invention] As explained above, according to the present invention, the desired blowout temperature and blowout air volume can be obtained using the three setting means, and especially when the blowout temperature is set to the maximum or the minimum. Since the airflow volume can be selected from two conditions: automatic control based on the airflow temperature or the maximum airflow, harsh noise can be reduced and comfort inside the vehicle can be improved.

[Brief explanation of drawings]

Fig. 1 is a complaint response diagram, Fig. 2 is a block diagram showing the overall configuration of the vehicle air conditioner according to the present invention, Fig. 3 is an explanatory diagram of the control panel shown in Fig. 2, and Fig. 4 5 is a flowchart showing control processing based on the operation of the control panel 13, FIG. 5 is a flowchart showing control related to the opening degree of A/MIX, and FIG. 6 is a flowchart showing control processing related to the amount of air blown out from the air outlet. FIG. 7 is an explanatory diagram showing another embodiment. 1...Manual means 2.First setting means 3...
-Second setting means 4...Third setting means 5...
Temperature adjustment means 6... Air volume adjustment means agent Patent attorney Hidekazu Miyoshi Figure 2 Figure 3

Claims (1)

[Scope of Claims] Input means for inputting a set temperature; and when the set temperature inputted from the input means is within a predetermined range, a signal for setting the blowing temperature and the blowing air volume to appropriate values according to the set temperature. a first setting means that outputs a first value outside the predetermined range, when the set temperature is set to a first value outside the predetermined range; a second setting means for respectively outputting a signal to set the temperature to an appropriate value according to the value of the first value; and when the set temperature is set to a second value outside the predetermined range, the blowing temperature is set to a maximum or minimum temperature. a third setting means for outputting a signal for setting the blowout air volume to the maximum air volume, and an output signal from the first setting means, the second setting means, or the third setting means; temperature adjusting means for adjusting the blowing temperature according to the temperature; and air volume adjusting means for adjusting the blowing air volume according to the output signal from the first setting means, the second setting means, or the third setting means. A vehicle air conditioner characterized by: