JP2520231B2 - Air flow control device for air conditioning - Google Patents
Air flow control device for air conditioningInfo
- Publication number
- JP2520231B2 JP2520231B2 JP24044485A JP24044485A JP2520231B2 JP 2520231 B2 JP2520231 B2 JP 2520231B2 JP 24044485 A JP24044485 A JP 24044485A JP 24044485 A JP24044485 A JP 24044485A JP 2520231 B2 JP2520231 B2 JP 2520231B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- air
- air volume
- room temperature
- volume control
- 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.)
- Expired - Fee Related
Links
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 [HVAC] 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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は車両用空調装置の風量制御装置に関する。The present invention relates to an air volume control device for a vehicle air conditioner.
（従来技術） 近年、多くの車両には車室内を温度調整し必要に応じ
て除湿して快適にする空調装置（いわゆるエアコン）が
装備されている。(Prior Art) In recent years, many vehicles are equipped with an air conditioner (so-called air conditioner) that adjusts the temperature inside the vehicle compartment and dehumidifies it as necessary to make it comfortable.
車両用空調装置においては、冷媒を循環させたクーラ
サイクルにより空気を冷却し、エンジン冷却水を循環さ
せたヒータにより空気を加熱し、冷却空気と加熱空気と
の混合割合を適当に変えることにより所望の冷風または
温風を作って車室内に噴出して車室内の温度調整をして
いる。In a vehicle air conditioner, air is cooled by a cooler cycle in which a refrigerant is circulated, air is heated by a heater in which engine cooling water is circulated, and a desired mixing ratio of cooling air and heated air is changed. The cold air or hot air is generated and jetted into the passenger compartment to adjust the temperature inside the passenger compartment.
ところで車室内に吹出す冷風または温風の風量は空調
条件により制御され、従来種々の風量制御方式が知られ
ている。第５図は従来知られている風量制御特性の一例
であり、車室内温度温度と設定室温との差に応じて図示
したように風量制御用ブロアファンモータの電圧VFを制
御するようにしたものであり、冷風や温風の噴出し風量
は温度差によって決まる（たとえば特開昭54−151234
号）。なお、第５図に示した風量制御特性においては、
風量の小刻みな変動を避けるために、風量増加時と減少
時で異なるヒステリシス特性を持たせてある。By the way, the air volume of the cold air or the hot air blown into the passenger compartment is controlled by the air conditioning conditions, and various air volume control methods have been conventionally known. FIG. 5 shows an example of a conventionally known air volume control characteristic, in which the voltage V F of the blower fan motor for air volume control is controlled according to the difference between the temperature inside the vehicle compartment and the set room temperature. The amount of cold or hot air blown out is determined by the temperature difference (see, for example, JP-A-54-151234).
issue). In addition, in the air volume control characteristics shown in FIG.
In order to avoid small fluctuations in the air volume, different hysteresis characteristics are provided when the air volume increases and when it decreases.
ところで、一般的に人間の温感上、等の冷房時に吹出
す風冷や冬の暖房時に吹出す温風は比較的強い方が涼し
さや暖かさを一層感じて快いが、春や秋などは車室内温
度と設定温度との差がある程度あっても吹出し風量は夏
や冬ほど強くない方が快適に感じ、夏や冬と同じ強さに
するとむしろ乗員のフィーリング上好ましくないという
ことが言える。By the way, generally, in terms of human warmth, it is more pleasant to feel coolness and warmth if the wind blown out during cooling or the warm air blown out during heating in winter is relatively strong, but in spring or autumn etc. Even if there is some difference between the cabin temperature and the set temperature, it feels more comfortable if the blown air volume is not as strong as in summer or winter, and if it is made the same as in summer or winter, it can be said that it is rather unfavorable for passenger feeling. .
（発明の目的および構成） 本発明は上記の点にかんがみてなされたもので、季節
や陽気に合わせた快適な風量制御を行うことを目的と
し、この目的を達成するための本発明の構成は、第１図
のクレーム対応図に示されるように、車室内温度を検出
する車室温センサ105と、車室内温度を設定する室温設
定手段104と、外気温を検出する外気温センサ102と、前
記車室温センサ105によって検出された車室内温度と、
前記室温設定手段104によって設定された設定室温との
温度差を演算する温度差演算手段103と、前記温度差演
算手段103によって演算された温度差に応じた風量で温
調風を吹き出す風量制御手段100と、前記外気温センサ1
02によって検出された外気温が、第１の温度と、該第１
の温度よりも高い第２の温度との範囲内にあるとき、前
記風量制御手段100によって吹出される風量を所定の割
合で減少させる外気温補正手段101とからなる。(Object and Structure of the Invention) The present invention has been made in view of the above points, and an object thereof is to perform comfortable air volume control according to the season and cheerfulness, and a structure of the present invention for achieving this object is As shown in the claim correspondence diagram of FIG. 1, a vehicle room temperature sensor 105 for detecting a vehicle interior temperature, a room temperature setting means 104 for setting a vehicle interior temperature, an outside air temperature sensor 102 for detecting an outside air temperature, and The vehicle interior temperature detected by the vehicle room temperature sensor 105,
A temperature difference calculating means 103 for calculating a temperature difference from the set room temperature set by the room temperature setting means 104, and an air volume control means for blowing out temperature-controlled air with an air volume according to the temperature difference calculated by the temperature difference calculating means 103. 100 and the outside air temperature sensor 1
The outside temperature detected by 02 is the first temperature and the first temperature.
When the temperature is within the range of the second temperature higher than the temperature of, the outside air temperature correction means 101 is configured to reduce the air volume blown out by the air volume control means 100 at a predetermined rate.
（実施例） 以下本発明を図面に基づいて説明する。(Example) The present invention will be described below with reference to the drawings.
第２図は本発明による風量制御装置の一実施例の回路
を示しており、１は外気温を検出するサーミスタなどの
外気温センサ、２は車室内温度を検出するサーミスタな
どの室温センサ、３は負の温度特性を有するサーミスタ
などから成る車室内温度設定用の室温設定器、４はA/D
コンバータを内蔵したワンチップマイクロコンピュー
タ、５は積分器、６はパワートランジスタ、７は車室内
への冷風または温風の吹出し風量を制御するブロアファ
ンモータである。FIG. 2 shows a circuit of an embodiment of the air volume control device according to the present invention, where 1 is an outside air temperature sensor such as a thermistor for detecting the outside air temperature, 2 is a room temperature sensor such as a thermistor for detecting the temperature inside the vehicle, 3 Is a room temperature setting device, such as a thermistor having a negative temperature characteristic, for setting the vehicle interior temperature, and 4 is an A / D
A one-chip microcomputer with a built-in converter, 5 an integrator, 6 a power transistor, and 7 a blower fan motor for controlling the amount of cold or warm air blown into the vehicle interior.
一方、第３図は本発明による風量制御における外気温
による風量補正特性を示しており、ここに例示したもの
は、風量補正係数αを外気温が−10℃から20℃の間で図
示したように変化させるが、特に10℃〜15℃の範囲内で
は０としたものである。On the other hand, FIG. 3 shows the air flow rate correction characteristics according to the outside air temperature in the air flow rate control according to the present invention. In the example shown here, the air flow rate correction coefficient α is shown when the outside air temperature is between −10 ° C. and 20 ° C. However, it is set to 0 particularly in the range of 10 ° C to 15 ° C.
すなわち、車両には、車外からの熱量は車室内に侵入
しやすいが車室内の熱量は車外に逃げにくいという性質
があり、車室内の温度はあまり下降しない。そのため、
外気温が−10℃〜10℃のとき、車室内の温度がある程度
目標温度に近づくと、暖房能力を大きくして使う機会は
少ない。また、外気温がこの範囲内にあるとき、温度を
上昇させる要因は日射以外にはほとんどなく、冷房の能
力を高くして使用されることはほとんどない。したがっ
て、この範囲ではファンを高速で使う機会は少なく、α
の傾きが小さく設定されている。That is, the vehicle has the property that the amount of heat from the outside of the vehicle easily enters the inside of the vehicle, but the amount of heat in the inside of the vehicle does not easily escape to the outside of the vehicle. for that reason,
When the outside air temperature is -10 ℃ to 10 ℃, if the temperature in the passenger compartment approaches the target temperature to some extent, there is little opportunity to use it by increasing the heating capacity. Further, when the outside air temperature is within this range, there is almost no factor other than the solar radiation that raises the temperature, and it is rarely used by increasing the cooling capacity. Therefore, there are few opportunities to use the fan at high speed in this range, and α
Is set to a small inclination.
一方、外気温が15℃〜25℃の範囲のとき、車室内の温
度は日射や外気温によって上昇しやすく、冷房効果を高
めるために、ファンを高速で使用する頻度が高くなる。
そのため、この範囲では補正係数αの傾きを大きくし、
ファンが高速で回転する頻度が高くなるようにしてい
る。On the other hand, when the outside air temperature is in the range of 15 ° C to 25 ° C, the temperature inside the vehicle compartment is likely to rise due to the sunlight and the outside air temperature, and the fan is frequently used at high speed to enhance the cooling effect.
Therefore, the slope of the correction coefficient α is increased in this range,
The fan rotates at high speed more frequently.
また、外気温が10℃〜15℃の範囲では暖房や冷房を行
う機会が少なく、ファンも低速で使われることが多いの
で、αは０に固定されている。Further, when the outside air temperature is in the range of 10 ° C to 15 ° C, there are few opportunities to perform heating and cooling, and the fan is often used at low speed, so α is fixed to 0.
第４図は本発明による風量制御動作のフローチャート
を示しており、以下にこのフローチャートを用いて風量
制御動作を説明する。FIG. 4 shows a flow chart of the air volume control operation according to the present invention, and the air volume control operation will be described below using this flow chart.
まず、ドライバーがイグニッションをオンしたとき外
気温センサ１で検出した外気温ＴAを読み込む（Ｆ−
１）。次にファンスイッチがオンかオフかを判別し（Ｆ
−２）、オフならばブロアファンモータは起動せず（Ｆ
−３）、オンならばファンスイッチがマニュアル風量制
御か自動風量制御かを判別する（Ｆ−４）。その結果マ
ニュアル風量制御ならば、風量大（Ｈ）、中（Ｍ）、小
（Ｌ）の固定風量制御を行うが（Ｆ−５）、自動風量制
御であれば次にウィンドウガラスの曇り除去のためにデ
フロスタスイッチがオンされているか否かを判別する
（Ｆ−６）。その結果、デフロスタスイッチがオフなら
ば、ブロアファン起動制御を行う（Ｆ−６）。このステ
ップでは、エンジン冷却水の温度や外気温が所定値より
低いときはブロアファンをすぐ起動させずエンジン冷却
水温が高くなったところで起動させるとか、そうでない
ときでも所定の時間をかけて徐々にファン速度を増加し
ていくなどの低水温制御が行なわれる。First, when the driver turns on the ignition, the outside temperature TA detected by the outside temperature sensor 1 is read (F-
1). Next, determine whether the fan switch is on or off (F
-2), if it is off, the blower fan motor will not start (F
-3), if on, it is determined whether the fan switch is in manual airflow control or automatic airflow control (F-4). As a result, in the case of manual air volume control, fixed air volume control of large (H), medium (M) and small (L) is performed (F-5). Therefore, it is determined whether the defroster switch is turned on (F-6). As a result, if the defroster switch is off, blower fan start control is performed (F-6). In this step, when the temperature of the engine cooling water or the outside air temperature is lower than the predetermined value, the blower fan is not started immediately but when the temperature of the engine cooling water becomes high. Low water temperature control such as increasing the fan speed is performed.
一方、デフロスタスイッチがオンのときはマイクロコ
ンピュータ４において、室温センサ２で検出した車室内
温度と室温設定器３で設定した温度とに基づいて第５図
の実線に示すようなブロアファンモータ電圧VFを演算す
る（Ｆ−８）。続いて、マイクロコンピュータ４では、
予め格納してある第３図に示すような風量補正特性から
外気温センサ１で検出した外気温ＴAに対応する風量補
正係数αを演算する（Ｆ−９）。次に、こうして求めた
電圧VFと係数αとを用いて、そのときの外気温ＴAに適
したブロアファンモータ電圧VF′を演算する（Ｆ−1
0）。たとえば車室内温度が設定室温と等しいときのブ
ロアファンモータ最低電圧を5Vとすると、ある外気温の
ときのブロアファンモータ電圧VF′は次の式で求めるこ
とができる。On the other hand, when the defroster switch is ON, the microcomputer 4 causes the blower fan motor voltage V as shown by the solid line in FIG. 5 based on the vehicle interior temperature detected by the room temperature sensor 2 and the temperature set by the room temperature setting device 3. Calculate F (F-8). Then, in the microcomputer 4,
An air volume correction coefficient α corresponding to the outside air temperature TA detected by the outside air temperature sensor 1 is calculated from the air volume correction characteristics stored in advance as shown in FIG. 3 (F-9). Next, using the voltage V F thus obtained and the coefficient α, a blower fan motor voltage V F ′ suitable for the outside air temperature TA at that time is calculated (F−1).
0). For example, if the blower fan motor minimum voltage when the vehicle interior temperature is equal to the set room temperature is 5 V, the blower fan motor voltage V F ′ at a certain outside temperature can be obtained by the following formula.
VF′＝５＋（VF−５）×α ［Ｖ］ こうして求めたブロアファンモータ電圧VF′をブロア
ファンモータ７に印加することにより（Ｆ−11）、その
ときの外気温に適した吹出し風量が得られる。第５図の
点線はこのようにして風量制御を行う場合の風量制御特
性を示しており、外気温TA1、TA2、TA3によって特性が
変化することになる。V F ′ = 5 + (V F −5) × α [V] By applying the blower fan motor voltage V F ′ thus obtained to the blower fan motor 7 (F−11), it is suitable for the outside temperature at that time. The blowing air volume can be obtained. The dotted line in FIG. 5 shows the air volume control characteristics when the air volume control is performed in this way, and the characteristics change depending on the outside air temperatures T A1 , T A2 , and T A3 .
（発明の効果） 以上説明したように、本発明においては、外気温が所
定の範囲内にあるときは吹出し風量を低目に補正するよ
うに達成したので、夏や冬のように外気温が比較的高い
ときまたは低いときは冷風や温風の吹出し風量が多くな
るが、春や秋のように外気温が中位のときは吹出し風量
がやや少なくなり、乗員の温感に合った風量制御ができ
るようになり、空調の快適性が向上する。(Effects of the Invention) As described above, according to the present invention, when the outside air temperature is within the predetermined range, the blowing air volume is corrected to be low. When the temperature is relatively high or low, the amount of cold or warm air blows out is large, but when the outside temperature is moderate, such as in spring or autumn, the amount of air blown out is a little low, and the air volume is controlled according to the passenger's warmth. The air conditioning comfort is improved.
第１図は本発明のクレーム対応図、第２図は本発明によ
る風量制御装置の一実施例の回路図、第３図は外気温に
よる風量補正特性を示す図、第４図は本発明における風
量制御動作を示すフローチャート、第５図は本発明によ
る風量制御特性、第６図は従来の風量制御特性の一例を
示す図である。 １……外気温センサ、２……室温センサ、３……室温設
定器、４……マイクロコンピュータ、５……積分器、６
……パワートランジスタ、７……ブロアファンモータ、
100……風量制御手段、101……外気温補正手段、102…
…外気温センサ、103……温度差演算手段、104……室温
設定手段、105……車室温センサFIG. 1 is a diagram corresponding to the claims of the present invention, FIG. 2 is a circuit diagram of an embodiment of an air volume control device according to the present invention, FIG. 3 is a diagram showing air volume correction characteristics depending on the outside air temperature, and FIG. FIG. 5 is a flow chart showing an air volume control operation, FIG. 5 is an air volume control characteristic according to the present invention, and FIG. 6 is an example of a conventional air volume control characteristic. 1 ... outside temperature sensor, 2 ... room temperature sensor, 3 ... room temperature setting device, 4 ... microcomputer, 5 ... integrator, 6
...... Power transistor, 7 …… Blower fan motor,
100 ... Air volume control means 101 ... Outside temperature correction means 102 ...
… Outside temperature sensor, 103 …… Temperature difference calculation means, 104 …… Room temperature setting means, 105 …… Car room temperature sensor
Claims (1)
室内温度を設定する室温設定手段と、外気温を検出する
外気温センサと、前記車室温センサによって検出された
車室内温度と、前記室温設定手段によって設定された設
定室温との温度差を演算する温度差演算手段と、前記温
度差演算手段によって演算された温度差に応じた風量で
温調風を吹き出す風量制御手段と、前記外気温センサに
よって検出された外気温が、第１の温度と、該第１の温
度よりも高い第２の温度との範囲内にあるとき、前記風
量制御手段によって吹出される風量を所定の割合で減少
させる外気温補正手段とからなることを特徴とする空調
用風量制御装置。1. A vehicle room temperature sensor for detecting a vehicle room temperature, a room temperature setting means for setting a vehicle room temperature, an outside air temperature sensor for detecting an outside air temperature, and a vehicle room temperature detected by the vehicle room temperature sensor. Temperature difference calculating means for calculating a temperature difference from the set room temperature set by the room temperature setting means, air volume control means for blowing out temperature-controlled air at an air volume according to the temperature difference calculated by the temperature difference calculating means, When the outside air temperature detected by the outside air temperature sensor is within the range between the first temperature and the second temperature higher than the first temperature, the air volume blown out by the air volume control means is set to a predetermined ratio. An air-conditioning air volume control device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24044485A JP2520231B2 (en) | 1985-10-29 | 1985-10-29 | Air flow control device for air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24044485A JP2520231B2 (en) | 1985-10-29 | 1985-10-29 | Air flow control device for air conditioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62101514A JPS62101514A (en) | 1987-05-12 |
| JP2520231B2 true JP2520231B2 (en) | 1996-07-31 |
Family
ID=17059583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24044485A Expired - Fee Related JP2520231B2 (en) | 1985-10-29 | 1985-10-29 | Air flow control device for air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520231B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101619873B1 (en) | 2010-02-18 | 2016-05-12 | 한온시스템 주식회사 | Air conditioning system for automotive vehicles |
-
1985
- 1985-10-29 JP JP24044485A patent/JP2520231B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101619873B1 (en) | 2010-02-18 | 2016-05-12 | 한온시스템 주식회사 | Air conditioning system for automotive vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62101514A (en) | 1987-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |