JPS6177510A - Air conditioner for car - Google Patents

Air conditioner for car

Info

Publication number
JPS6177510A
JPS6177510A JP19954984A JP19954984A JPS6177510A JP S6177510 A JPS6177510 A JP S6177510A JP 19954984 A JP19954984 A JP 19954984A JP 19954984 A JP19954984 A JP 19954984A JP S6177510 A JPS6177510 A JP S6177510A
Authority
JP
Japan
Prior art keywords
solar radiation
sensor
output
temperature sensor
radiation sensor
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.)
Pending
Application number
JP19954984A
Other languages
Japanese (ja)
Inventor
Katsumi Iida
克巳 飯田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Corp
Original Assignee
Diesel Kiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP19954984A priority Critical patent/JPS6177510A/en
Publication of JPS6177510A publication Critical patent/JPS6177510A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/0075Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being solar radiation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To exclude the unnecessary influence of a solar radiation sensor of a control system by installing a limit means for setting a prescribed value as the detected solar radiation amount when the detected solar radiation amount by the solar radiation sensor is less than the prescribed value, onto an air conditioner for car. CONSTITUTION:In an air conditioner for car, each of a solar radiation sensor 26, inside-air temperature sensor 27, evaporator temperature sensor 28, and an outside-air temperature sensor 29 is constituted of a thermistor. The output voltage of the solar radiation sensor 26 is input into an A/D converter through an upper limiter 31, and further the output voltage of the inside-air temperature sensor 27, output voltage of the evaporator temperature sensor 28, output voltage of the outside-air temperature sensor 29, the set output of a temperature setting device 32, and the output of a potentiometer 33 for detecting the opening degree of a mixing door 8 are supplied into the A/D converter through a multiplexer, and converted into the digital data, which are supplied into a control circuit 2 constituted of a microcomputer. The output of the solar radiation sensor 26 is limited when the solar radiation amount is less than prescribed amount, and when the amount exceeds a prescribed value, the voltage corresponding to the solar radiation amount is outputted.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は車輛用空気調和装置に関し、さらに評言すれば
日射温度を因子の一つとして車室温度を制御する車輛用
空気調和装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle air conditioner, and more particularly to a vehicle air conditioner that controls vehicle interior temperature using solar radiation temperature as one of the factors.

(従来技術) 車輛用空気調和装置において、外気温センサ、室温セン
サ、エバポレータ出口空気温度センサ、日射センサ等の
センサ出力を入力してこれらの入力データから、プロワ
速度を演算してプロワ風量を制御し、温度制御演算をし
てミックスダンパ等を制御し、吹出し方向制御演算をし
て吹出口の選択をし、車室内温度を温度設定された値に
対応する所望温度になすべく制御することが行なわれて
いる。
(Prior art) In a vehicle air conditioner, sensor outputs such as an outside temperature sensor, room temperature sensor, evaporator outlet air temperature sensor, and solar radiation sensor are input, and the blower speed is calculated from these input data to control the blower air volume. Then, it performs temperature control calculations to control the mix damper, etc., performs airflow direction control calculations to select the air outlet, and controls the vehicle interior temperature to a desired temperature corresponding to the temperature setting value. It is being done.

しかし、日射センサは通常ダツシュボードに埋設される
等の方法により設置されている。日射センサに温度セン
サを用いたときは、外気温が低く車輛が放置されている
状態から起動した場合、日射センサの室温の変化に対す
る追従性が悪く、特に中間季節における起動時、吹出空
気温度が高くなって、室内温度が所望温度よりオーバー
シュートする欠点があった。
However, the solar radiation sensor is usually installed by a method such as being buried in a dash board. When a temperature sensor is used as a solar radiation sensor, if the outside temperature is low and the vehicle is started while the vehicle has been left unattended, the solar radiation sensor has poor ability to follow changes in room temperature, especially when starting in the middle of the season, the temperature of the blowing air may be low. This has the disadvantage that the indoor temperature overshoots the desired temperature.

(発明の目的) 本発明は上記にかんがみなされたもので、制御系に対し
日射センサの不必要な影響を排除して、上記の欠点を解
消した車輛用空気調和装置を提供することを目的とする
(Object of the Invention) The present invention has been made in view of the above, and an object of the present invention is to provide an air conditioner for a vehicle that eliminates the above-mentioned drawbacks by eliminating the unnecessary influence of a solar radiation sensor on a control system. do.

(発明の概要) 本発明は、日射センサによる検出日射量が所定値以下の
ときは、前記所定値を検出日射量とするリミット手段を
設けたことを特徴とするものである。
(Summary of the Invention) The present invention is characterized in that, when the amount of solar radiation detected by the solar radiation sensor is less than a predetermined value, a limit means is provided that sets the predetermined value as the detected amount of solar radiation.

(発明の実施例) 以下、本発明を実施例により説明する。(Example of the invention) The present invention will be explained below with reference to Examples.

第1図は本発明の一実施例の構成を示すブロック図であ
る。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

1は空気調和装置本体であり、2は空気調和装置本体1
を制御する制御回路である。
1 is the air conditioner main body, 2 is the air conditioner main body 1
This is a control circuit that controls the

空気調和装置本体1はダクト3の上流側から、インテー
クドア4、送風機5、エバポレータ6、ミックスドア8
、ヒータコア9が順次配設してあり、最下流側にモード
切替用のドア10.11が設けである。
The air conditioner body 1 includes, from the upstream side of the duct 3, an intake door 4, a blower 5, an evaporator 6, and a mix door 8.
, heater cores 9 are arranged in sequence, and a door 10.11 for mode switching is provided on the most downstream side.

インテークドア4はモータアクチュエータ12によって
制御され、吸気における外気と車室内気との比率を調節
された吸気は送風機5によってインテークドア4を介し
てダクト3内に吸引導入される。エバポレータ6は冷媒
を圧縮し循環させるコンプレッサー3、コンデンサー4
、レシーバタンク15および膨張弁16とからなる冷却
機17の一部を構成しており、コンプレッサー3は車載
の内燃機関クランクの回転が伝達されるプーリ18によ
り駆動され、プーリ18かもの回転力はマグネットクラ
ッチ19を介して伝達される。送風機5によって吸引導
入された吸気はエバポレータ6によって冷却さiLる。
The intake door 4 is controlled by a motor actuator 12, and the intake air whose ratio of outside air to vehicle interior air is adjusted is sucked and introduced into the duct 3 through the intake door 4 by a blower 5. The evaporator 6 has a compressor 3 and a condenser 4 that compress and circulate the refrigerant.
The compressor 3 is driven by a pulley 18 to which the rotation of the internal combustion engine crank mounted on the vehicle is transmitted, and the rotational force of the pulley 18 is The signal is transmitted via the magnetic clutch 19. The intake air sucked and introduced by the blower 5 is cooled by the evaporator 6.

ヒータコア9は車載内燃機関の冷却水が導入されていて
加熱器として作用する。エバポレータ6により冷却され
た吸気とヒータコア9に匠通する吸気との比率はミック
スドア8の開度によって変更され、ミックスドア8の開
度に対応してヒータコア争呼に供給される冷却水量の祠
祭がなされる。
The heater core 9 is supplied with cooling water for the internal combustion engine mounted on the vehicle and functions as a heater. The ratio of the intake air cooled by the evaporator 6 to the intake air flowing through the heater core 9 is changed by the opening degree of the mix door 8, and the amount of cooling water supplied to the heater core is changed according to the opening degree of the mix door 8. A festival is held.

ミックスドア8はモータアクチュエータ20によって駆
動される。
The mix door 8 is driven by a motor actuator 20.

モード切替用のドア10.11により、ベント吹出口2
1、デフロスト吹出口22、ヒート吹出口23を選択し
て空気調和された空気を車室24に吹き出すべく切替え
られる。モード切替用のドア10.11はモータアクチ
ュエータ25により駆動される。
The vent outlet 2 is opened by the mode switching door 10.11.
1. The defrost outlet 22 and the heat outlet 23 are selected and switched to blow out conditioned air into the vehicle interior 24. The mode switching door 10.11 is driven by a motor actuator 25.

日射センサ26、車室24内の温度を代表する位置に設
けた内気温度センサ27、エバポレータ6を通過した空
気の温度すなわちA点の温度を検出するエバポレータ温
度センサ28、外気温度検出センサ29は、たとえばサ
ーミスタから構成しである。日射温度センサ26は抵抗
30と直列接続して電圧+VCCを分圧し、この分圧電
圧を出力電圧として出力する。内気温度センサ27、エ
バポレータ温度センサ28、外気温度センサ29につい
ても同様である。
The solar radiation sensor 26, the inside air temperature sensor 27 provided at a position representative of the temperature inside the vehicle compartment 24, the evaporator temperature sensor 28 that detects the temperature of the air that has passed through the evaporator 6, that is, the temperature at point A, and the outside air temperature detection sensor 29, For example, it consists of a thermistor. The solar radiation temperature sensor 26 is connected in series with a resistor 30, divides the voltage +VCC, and outputs this divided voltage as an output voltage. The same applies to the inside air temperature sensor 27, the evaporator temperature sensor 28, and the outside air temperature sensor 29.

日射温度センf26の出力電圧は後記した上限リミツタ
31全通して、内気温度センサ27の出力電圧、エバポ
レータ温度センサ28の出力電圧、外気温度センサ29
の出力電圧、温度設定器32の設定出力およびミックス
ドア8の開度を検出するポテンショメータ33の出力は
図示しないマルチプレクサを介してA/D変換器(以下
ADCと記す)34に供給し、デジタルデータに変換し
、マイクロコンピュータから構成された制御回路2に供
給しである。制御回路2はCPU、プログラムを記憶さ
せたROM、データを記憶するRAMを備えている。制
御回路2はROMに記憶させであるプログラムにしたが
って、ADC34の出力を読み込み、読み込んだADC
34の出力データから、温度設定器32の設定出力と内
気温度センサ27の出力との偏差を演算し、この偏差を
リミッタ31を介した日射温度センサ26の出力、エバ
ポレ〜り温度センサ28の出力等により補正しt綜合デ
ータTを演算する。演算綜合データTから送風機風量を
演算または綜合データに対応させた送風機風量パターン
から送風機風景を求め、求め之送風機風量となすべく制
御回路2により駆動回路35が制御される。また演算綜
合データTから演算マ念はパターンからの検索によりイ
ンテークドア4の開度、マグネットクラッチ19のオン
・オフデユーティ比、ミックスドア8の開度を求め、駆
動回路36tl−制御してインテークドア4の開度を求
めた開度に、駆動回路37を制御してマグネットクラッ
チ19のオンやオフデユーティ比を求めたオン・オフデ
ユーティ比に、駆動回路38を制御してミックスドア8
の開度を求めた開度に制御して、車室内温度を綜合デー
タに対応する温度になすべく制御回路2により制御され
る。
The output voltage of the solar radiation temperature sensor f26 is determined through the upper limit limiter 31 (described later), the output voltage of the inside air temperature sensor 27, the output voltage of the evaporator temperature sensor 28, and the outside air temperature sensor 29.
The output voltage of the potentiometer 33 that detects the output voltage of the temperature setting device 32, the setting output of the temperature setting device 32, and the opening degree of the mix door 8 are supplied to an A/D converter (hereinafter referred to as ADC) 34 via a multiplexer (not shown) and converted into digital data. The signal is converted into a signal and supplied to a control circuit 2 composed of a microcomputer. The control circuit 2 includes a CPU, a ROM that stores programs, and a RAM that stores data. The control circuit 2 reads the output of the ADC 34 according to a program stored in the ROM, and controls the read ADC.
34, calculate the deviation between the set output of the temperature setting device 32 and the output of the inside air temperature sensor 27, and use this deviation as the output of the solar radiation temperature sensor 26 via the limiter 31 and the output of the evaporative temperature sensor 28. etc., and calculate the total data T. The drive circuit 35 is controlled by the control circuit 2 to calculate the blower air volume from the calculated total data T or to obtain the blower scenery from the blower air volume pattern corresponding to the total data, and to achieve the desired blower air volume. In addition, the calculation model calculates the opening degree of the intake door 4, the on/off duty ratio of the magnetic clutch 19, and the opening degree of the mix door 8 by searching from the pattern from the calculation integrated data T, and controls the drive circuit 36tl to open the intake door 4. The drive circuit 37 is controlled to turn on the magnetic clutch 19 according to the calculated opening degree, and the drive circuit 38 is controlled to turn on the magnetic clutch 19 to the calculated on-off duty ratio.
The control circuit 2 controls the opening degree to the calculated opening degree to bring the vehicle interior temperature to a temperature corresponding to the integrated data.

また、リミッタ31を介した日射温度センサ26の出力
、エバポレータ温度上ンサ28の出力、ミックスドア8
の開度等からモード切替吹出温度を演算し、この演算結
果をそ一ド切替指定温度と比較して駆動回路39を制御
してモード切替用ドア10.11が制御される。
In addition, the output of the solar radiation temperature sensor 26 via the limiter 31, the output of the evaporator temperature sensor 28, the mix door 8
The mode switching blowout temperature is calculated from the degree of opening of the mode switching door 10.11, and the calculation result is compared with the designated switching temperature to control the drive circuit 39 to control the mode switching door 10.11.

第2図は上限リミッタ31を示す回路図の一例である。FIG. 2 is an example of a circuit diagram showing the upper limiter 31. In FIG.

電源電圧+VCCを抵抗40と41との直列回路で分圧
した電圧を、抵抗43を介して演算増幅器44の非反転
入力端子に印加し、日射センサ26の出力電圧はADC
34のみ入力として供給するとともに、帰還抵抗46を
介して演算増幅器44の反転入力端子に印加してあり、
かつダイオード45を介して演算増幅器44の出力端に
供給しである。
A voltage obtained by dividing the power supply voltage +VCC by a series circuit of resistors 40 and 41 is applied to the non-inverting input terminal of the operational amplifier 44 via the resistor 43, and the output voltage of the solar radiation sensor 26 is determined by the ADC.
34 as an input, and is applied to the inverting input terminal of the operational amplifier 44 via the feedback resistor 46.
It is also supplied to the output terminal of the operational amplifier 44 via the diode 45.

そこで上記の上限リミッタ31け、日射センサ26の出
力電圧が抵抗40と41とによる電圧+VCCの分圧点
B(7)電圧(リミット電圧)以下のときには、ダイオ
ード45はカットオフで、ADC34へは日射センサ2
6の出力電圧がそのまま出力され、日射センサ26゛の
出力電圧がリミット電圧を超えるとダイオード45は導
通して、ADC34への被変換入力電圧はリミット電圧
(ダイオード45の順方向電圧降下は無視)にリミット
される、第3図に示す特性を呈する。
Therefore, when the output voltage of the solar radiation sensor 26 is lower than the voltage at the dividing point B (7) (limit voltage) of the voltage +VCC by the resistors 40 and 41, the diode 45 is cut off and the output voltage to the ADC 34 is determined by the upper limiter 31 mentioned above. Solar radiation sensor 2
6 is output as is, and when the output voltage of the solar radiation sensor 26' exceeds the limit voltage, the diode 45 becomes conductive, and the input voltage to be converted to the ADC 34 becomes the limit voltage (ignoring the forward voltage drop of the diode 45). It exhibits the characteristics shown in FIG. 3, which are limited to .

しかるに日射センサ26はサーミスタから構成されてお
り、その温度−抵抗特性は負特性を呈するため、温度に
変換すれば上記上限リミッタは、温度に対する下限リミ
ッタとして作用し、日射量が所定値以下のときは日射セ
ンサ26の出力、ハリミツトされ、所定値を超えたとき
は日射量に対応した出力電圧を出力することになる。
However, the solar radiation sensor 26 is composed of a thermistor, and its temperature-resistance characteristic exhibits a negative characteristic. Therefore, when converted to temperature, the upper limiter acts as a lower limiter for temperature, and when the amount of solar radiation is below a predetermined value, is the output of the solar radiation sensor 26, and when it exceeds a predetermined value, an output voltage corresponding to the amount of solar radiation is output.

また、第2図において破線に示す如く抵抗41とアース
との間に直列にスイッチ47を設けるときは、スイッチ
47のオンにより上記の如くリミッタ作用が行なわれ、
スイッチ47をオフにしたときはリミッタとして働かな
いため、スイッチ47により選択的にリミッタを日射セ
ンサ26の出力に挿入したシ、非挿入としたシすること
ができる。
Further, when a switch 47 is provided in series between the resistor 41 and the ground as shown by the broken line in FIG. 2, the limiter action is performed as described above by turning on the switch 47.
Since the switch 47 does not function as a limiter when it is turned off, the limiter can be selectively inserted or not inserted into the output of the solar radiation sensor 26 using the switch 47.

上記の如く、日射センサ26の出力電圧を上限リミット
することにより、制御回路2における演算において、日
射量が所定値以下のときは日射量が所定値であるとして
演算され、また日射量が所定値以上のときは日射量に対
応した値で演算がなされるため、日射センf260日射
量に対する追従性が遅くても、冬季起動時に車室温度の
オーバーシュートが防がれ、中間季起動にベント吹出口
より温風が吹き出したジするようなことはなくなる。
As described above, by limiting the output voltage of the solar radiation sensor 26, in calculations in the control circuit 2, when the solar radiation amount is less than or equal to the predetermined value, the solar radiation amount is calculated to be the predetermined value, and the solar radiation amount is calculated to be the predetermined value. In the above cases, calculations are performed using values that correspond to the amount of solar radiation, so even if the solar radiation sensor F260's ability to follow the amount of solar radiation is slow, overshoot of the cabin temperature during winter startup is prevented, and vent blowout is prevented during mid-season startup. There is no longer a tingling sensation caused by hot air blowing out from the outlet.

つぎに本発明の他の実施例について説明する。Next, other embodiments of the present invention will be described.

本発明の一実施例はハードウェアによるリミッタを設け
た場合を例示したが、本発明の他の実施例はソフトウェ
ア的にリミット作用を行なう場合の例である。
Although one embodiment of the present invention has been exemplified in which a hardware limiter is provided, other embodiments of the present invention are examples in which the limiting action is performed by software.

車輛用空気調和装置は制御回路2によって、几OMに記
憶されたプログラムにしたがって制御される。
The vehicle air conditioner is controlled by the control circuit 2 according to a program stored in the OM.

制御回路2f、動作させると(ステップa)、初期設定
がなされ(ステップb)、続いて送風機風量が前記した
如く演算されその演算送風機風量となすべく送風機5を
制御する送風機風量制御がなされる(ステップC)。ス
テ°ツブCに引き続き、車室内温度を演算綜合データT
に対応して予め定められた目標温度になすべく、前記し
た如く演算またはパターンからの検索によジインテーク
ドア4の開度、冷却機17、ミックスドア8の開度を制
御する温度制御がなされ(ステップd)、ついで吹き出
し口を設定するモード制御がなされ(ステップe)、モ
ード制御に引き続いて再びステンプCが実行される。し
かるに本発明の他の実施例においてはステップCの直前
でステップf、hの実行がなされる。
When the control circuit 2f is operated (step a), initial settings are made (step b), and then the blower air volume is calculated as described above, and blower air volume control is performed to control the blower 5 to achieve the calculated blower air volume ( Step C). Following Step C, calculate the vehicle interior temperature and calculate the total data T.
In order to achieve a predetermined target temperature corresponding to the above, temperature control is performed by controlling the opening degree of the intake door 4, the opening degree of the cooler 17, and the mixing door 8 by calculation or pattern search as described above. (Step d), then mode control is performed to set the air outlet (Step e), and following the mode control, Step C is executed again. However, in other embodiments of the invention, steps f and h are executed immediately before step C.

すなわち、日射センサ26の出力電圧をデジタル変換し
、一旦RAM内の所定エリアに読み込んだ日射センサの
出力データが所定値以下がチェックされ(ステップf)
、ステップfにおいて日射センサの出力データが所定値
以下のときはRAM内の所定エリアに読み込んだ日射セ
ンサの出力データを所定値に置換して所定値を日射セン
サの出力データとする(ステップg)。またステップf
において日射センサの出力データが所定値以下でないと
きはR,AM内の所定エリアに読み込んだ日射センサの
出力データをそのまま日射センサの出力データとする(
ステップh)。
That is, the output voltage of the solar radiation sensor 26 is digitally converted, and it is checked that the output data of the solar radiation sensor, which has been read into a predetermined area in the RAM, is equal to or less than a predetermined value (step f).
, When the output data of the solar radiation sensor is less than a predetermined value in step f, the output data of the solar radiation sensor read into a predetermined area in the RAM is replaced with a predetermined value, and the predetermined value is set as the output data of the solar radiation sensor (step g). . Also step f
If the output data of the solar radiation sensor is not below a predetermined value, the output data of the solar radiation sensor read into the predetermined area in R and AM is used as the output data of the solar radiation sensor (
Step h).

したがってステップC,dにおける演算において、日射
センサの出力データに下限リミットがなされたのと等価
であり、本発明の一実施例の場合と全く同様となる。
Therefore, in the calculations in steps C and d, this is equivalent to placing a lower limit on the output data of the solar radiation sensor, and is exactly the same as in one embodiment of the present invention.

(発明の効果) 以上説明した如く日射センサの日射量検出出力が所定値
以下のときは該所定値を日射センサの日射量検出出力と
し、日射センサの日射量検出出力が所定値を超えている
ときはそのまま日射センサの日射量検出出力として出力
するリミット手段を設けたことにより、日射センサの追
従性の遅れにもかかわらず車室内温度が冬季起動時オー
バシュートシたり、中間季起動時ベント吹出口から温風
が吹き出すようなことはなくなる。
(Effect of the invention) As explained above, when the solar radiation detection output of the solar radiation sensor is below a predetermined value, the predetermined value is set as the solar radiation detection output of the solar radiation sensor, and the solar radiation detection output of the solar radiation sensor exceeds the predetermined value. By providing a limit means that directly outputs the solar radiation amount detection output from the solar radiation sensor, the temperature in the vehicle interior can be prevented from overshooting when starting in winter, or from vent blowing when starting in the middle of the season, despite the delay in follow-up performance of the solar radiation sensor. There will be no more hot air blowing out of the outlet.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例のブロック図。 第2図は本発明の一実施例におけるリミッタの一例を示
す回路図。 第3図は第2図に示したリミッタの特性図。 第4図は本発明の他の実施例を示すフローチャート。 1・・・空気調和装置本体、2・制御回路、26・・日
射センサ、31 ・上限リミッタ、44・演算増幅器、
45・・・ダイオード。
FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 2 is a circuit diagram showing an example of a limiter in an embodiment of the present invention. FIG. 3 is a characteristic diagram of the limiter shown in FIG. 2. FIG. 4 is a flowchart showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Air conditioner main body, 2. Control circuit, 26. Solar radiation sensor, 31. Upper limiter, 44. Operational amplifier,
45...Diode.

Claims (2)

【特許請求の範囲】[Claims] (1)日射量を検出する日射センサを含む複数のセンサ
出力に応答して、車室温度を目標設定値に対応して制御
する車輛用空気調和装置において、日射センサによる検
出日射量が所定値以下のときに検出日射量として前記所
定値を出力するリミツト手段を設けたことを特徴とする
車輛用空気調和装置。
(1) In a vehicle air conditioner that controls the cabin temperature in accordance with a target set value in response to the outputs of multiple sensors including a solar radiation sensor that detects solar radiation, the solar radiation detected by the solar radiation sensor is a predetermined value. An air conditioner for a vehicle, comprising a limit means for outputting the predetermined value as the detected amount of solar radiation in the following cases.
(2)日射センサはサーミスタからなり、かつリミツト
手段が上限リミツタであることを特徴とする特許請求の
範囲第1項記載の車輛用空気調和装置。
(2) The air conditioner for a vehicle according to claim 1, wherein the solar radiation sensor comprises a thermistor, and the limit means is an upper limiter.
JP19954984A 1984-09-26 1984-09-26 Air conditioner for car Pending JPS6177510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19954984A JPS6177510A (en) 1984-09-26 1984-09-26 Air conditioner for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19954984A JPS6177510A (en) 1984-09-26 1984-09-26 Air conditioner for car

Publications (1)

Publication Number Publication Date
JPS6177510A true JPS6177510A (en) 1986-04-21

Family

ID=16409671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19954984A Pending JPS6177510A (en) 1984-09-26 1984-09-26 Air conditioner for car

Country Status (1)

Country Link
JP (1) JPS6177510A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364510U (en) * 1986-10-20 1988-04-28
JPS6364509U (en) * 1986-10-20 1988-04-28
JPH02208117A (en) * 1989-02-07 1990-08-17 Nissan Shatai Co Ltd Blown-off air temperature controller of air conditioner for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364510U (en) * 1986-10-20 1988-04-28
JPS6364509U (en) * 1986-10-20 1988-04-28
JPH02208117A (en) * 1989-02-07 1990-08-17 Nissan Shatai Co Ltd Blown-off air temperature controller of air conditioner for vehicle

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