JPS6252342A - Air conditioning control device for vehicle - Google Patents

Air conditioning control device for vehicle

Info

Publication number
JPS6252342A
JPS6252342A JP60189491A JP18949185A JPS6252342A JP S6252342 A JPS6252342 A JP S6252342A JP 60189491 A JP60189491 A JP 60189491A JP 18949185 A JP18949185 A JP 18949185A JP S6252342 A JPS6252342 A JP S6252342A
Authority
JP
Japan
Prior art keywords
compressor
inverter
temperature
vehicle
frequency
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
JP60189491A
Other languages
Japanese (ja)
Inventor
Koichiro Tsutsumi
堤 好一郎
Nobuyoshi Hamazaki
浜崎 信義
Masamichi Niina
新名 正美知
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP60189491A priority Critical patent/JPS6252342A/en
Publication of JPS6252342A publication Critical patent/JPS6252342A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To make it possible to maintain a ventilating condition even if the operation of a compressor is stopped by using a single inverter, by providing an opening and closing switch between an inverter for driving a compressor and an indoor fan, and the compressor. CONSTITUTION:The control unit comprises a compressor 5 for compressing coolant, an indoor fan 7 for evaporating the coolant, an inverter 3A for driving the compressor 5 and the fan 7, means 10 for setting a desired temperature, a temperature sensor 11 for detecting the temperature within vehicle, a circuit 4A for controlling the output frequency of the inverter based on a desired temperature and a temperature within vehicle, and an opening and closing switch 12 provided between the inverter and the compressor. The circuit 4A includes a switching control means which opens the switch 12 when a temperature within the vehicle continues to decrease even if the output frequency of the inverter reaches the lowest value of the driving frequency of the compressor, and closes the switch 12 when the temperature within the vehicle exceeds the desired temperature. Thus, during a space cooling operation, even if the compressor stops, the fan is driven.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、唯一のインバータを用いて、圧縮機が停止
しても室内ファンを停止させない車両用空調制御装置に
関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle air conditioning control device that uses only one inverter and does not stop an indoor fan even if a compressor stops.

[従来の技術] 第3図は従来の車両用空調制御装置を示ブロック図であ
る。図において、(1)はDC幹線であり、一方の端子
(1a)には図示しない直流高圧架線から受電した直流
電圧が降圧されて印加され、他方の端子(1b)は接地
されている。(2)はDC幹線(1)の両端間に接続さ
れた電源コンデンサ、(3)は電源コンデンサ(2)か
ら供給される電圧を可変電圧可変周波数(VVVF)の
三相交流に変換するインバータ、(4)はインバータ(
3)の出力周波数を可変変調パルスで制御する制御回路
である。(5)は冷媒を圧縮する圧縮機、(6)は圧縮
機(5)で圧縮された冷媒を凝縮するための室外ファン
、(7)は室外ファン(6)で凝縮された後キャピラリ
チューブ(図示せず)で膨張された冷媒を蒸発させる冷
却器用の室内ファンであり、これらは共にインバータ(
3)の出力端子に接続されている。
[Prior Art] FIG. 3 is a block diagram showing a conventional vehicle air conditioning control device. In the figure, (1) is a DC trunk line, to which a reduced DC voltage received from a DC high-voltage overhead line (not shown) is applied to one terminal (1a), and the other terminal (1b) is grounded. (2) is a power supply capacitor connected between both ends of the DC main line (1), (3) is an inverter that converts the voltage supplied from the power supply capacitor (2) into variable voltage variable frequency (VVVF) three-phase alternating current; (4) is an inverter (
3) is a control circuit that controls the output frequency using a variable modulation pulse. (5) is a compressor that compresses the refrigerant, (6) is an outdoor fan that condenses the refrigerant compressed by the compressor (5), and (7) is a capillary tube after being condensed by the outdoor fan (6). This is an indoor fan for the cooler that evaporates the refrigerant expanded by the inverter (not shown).
3) is connected to the output terminal.

次に、第3図に示した従来装置の動作について説明する
Next, the operation of the conventional device shown in FIG. 3 will be explained.

圧縮機(5)は低圧の冷媒を高温、高圧の蒸気にして凝
縮器に送る。室外ファン(6)を有する凝縮器は冷媒を
高圧のまま冷却、凝縮して液体にする。
The compressor (5) converts the low-pressure refrigerant into high-temperature, high-pressure vapor and sends it to the condenser. A condenser equipped with an outdoor fan (6) cools and condenses the refrigerant at high pressure to liquid.

次に、図示しないキャピラリチューブが高圧の液体冷媒
を膨張させ、低温の湿り蒸気にして冷却器に送る。室内
ファン(7)を有する冷却器は、車両内の空気の熱を冷
媒に与え、低圧の過熱蒸気にして再び圧縮機(5)に送
る。以上のサイクルを繰り返し、室内ファン(7)は車
両内に冷風を送る。
Next, a capillary tube (not shown) expands the high-pressure liquid refrigerant, converts it into a low-temperature wet vapor, and sends it to the cooler. A cooler with an indoor fan (7) applies heat from the air inside the vehicle to a refrigerant, turns it into low-pressure superheated steam, and sends it back to the compressor (5). Repeating the above cycle, the indoor fan (7) sends cool air into the vehicle.

通常、圧縮機(5)の駆動周波数(回転数)を変えるこ
とにより冷房能力が制御されているが、圧縮機(5)は
潤滑油を内蔵しており、この潤滑油を循環させるために
駆動周波数の下限値は30Hzとなっている。又、イン
バータ(3)の制限容量あるいは圧縮機(5)の駆動周
波数が低い方が冷房効率が高いなどの理由から駆動周波
数の上限は60Hzとなっている。従って、最大冷房能
力状態では、圧縮機(5)、室外77 :/(6)及び
室内77:/(7)は60Hzの周波数及びその周波数
に比例した電圧で駆動されている。
Normally, the cooling capacity is controlled by changing the driving frequency (rotational speed) of the compressor (5), but the compressor (5) contains lubricating oil and is driven to circulate this lubricating oil. The lower limit of frequency is 30Hz. Further, the upper limit of the driving frequency is set to 60 Hz because the cooling efficiency is higher when the limited capacity of the inverter (3) or the driving frequency of the compressor (5) is lower. Therefore, in the maximum cooling capacity state, the compressor (5), the outdoor 77:/(6) and the indoor 77:/(7) are driven at a frequency of 60 Hz and a voltage proportional to the frequency.

車両内温度が所望温度まで下がり、冷房能力がそれほど
必要でなくなると、温度センサ(図示せず)からの信号
に応じて、インバータ(3)の出力周波数は下限の30
 Hzに設定される。このときの冷房能力は、最大冷房
能力時に比べて約50%である。
When the temperature inside the vehicle falls to the desired temperature and the cooling capacity is no longer required, the output frequency of the inverter (3) increases to the lower limit of 30°C in response to a signal from a temperature sensor (not shown).
Hz. The cooling capacity at this time is about 50% compared to the maximum cooling capacity.

車両内温度が所望温度以下まで下がり、冷房能力を更に
減少させるには、インバータ(3)の出力周波数を30
Hzより低くすることはできないので、インバータ(3
)をオフして圧縮機(5)の駆動を停止さ仕る。つまり
、最大冷房能力の50%以下での冷房駆動制御は不可能
であるため、圧縮機(5)の駆動を停止させ、冷房能力
を0にして車両内温度を調整している。しかし、このと
き室外ファン(6)及び室内ファン(7)も停止してし
まい、送風状態にするにはモード切換スイッチ(図示せ
ず)を操作しなければならない。
If the temperature inside the vehicle falls below the desired temperature and the cooling capacity is to be further reduced, the output frequency of the inverter (3) should be increased to 30%.
Since it cannot be lower than Hz, an inverter (3
) to stop driving the compressor (5). In other words, since it is impossible to control the cooling drive at 50% or less of the maximum cooling capacity, the drive of the compressor (5) is stopped and the cooling capacity is set to 0 to adjust the temperature inside the vehicle. However, at this time, the outdoor fan (6) and the indoor fan (7) also stop, and a mode selector switch (not shown) must be operated to switch to the ventilation mode.

車両内温度が上昇して所望温度以上になると、制御回路
(4)はインバータ(3)の出力周波数を60Hzとし
、再び圧縮機(5)を最大冷房能力で起動する。こうし
て、前述の動作を繰り返しながら、圧縮機(5)の起動
、停止を行う。
When the temperature inside the vehicle rises to a desired temperature or higher, the control circuit (4) sets the output frequency of the inverter (3) to 60 Hz and starts the compressor (5) again at the maximum cooling capacity. In this way, the compressor (5) is started and stopped while repeating the above-described operations.

[発明が解決しようとする問題点] 従来の車両用空調制御装置は以上のように、冷房能力を
減少させるために圧縮機(5)を停止すると、同時に室
内ファン(7)も停止してしまい、送風を得るためには
モード切換スイッチを操作しなければならないという問
題点があり、又、冷房動作中に圧縮機(5)が停止して
も室内ファン(7)が駆動して送風状態を得るために、
室内ファン(7)をインバータ(3)とは別の固定電圧
固定周波数(CVCF)のインバータで定常駆動する構
成も考えられるが、インバータを余分に必要とするため
コスト高となるという問題点があった。
[Problems to be Solved by the Invention] As described above, in the conventional vehicle air conditioning control device, when the compressor (5) is stopped to reduce the cooling capacity, the indoor fan (7) is also stopped at the same time. However, there is a problem in that the mode selector switch must be operated in order to obtain air blowing, and even if the compressor (5) stops during cooling operation, the indoor fan (7) is activated and the air blowing state is not changed. In order to obtain
A configuration in which the indoor fan (7) is constantly driven by a fixed voltage, fixed frequency (CVCF) inverter that is separate from the inverter (3) can be considered, but this poses the problem of high cost due to the need for an extra inverter. Ta.

この発明は上記のような問題点を解決するためになされ
たもので、唯一のインバータを用いて、冷房動作中に圧
縮機が停止しても、室内ファンを駆動し続けて送風状態
とする車両用空調制御装置を得ることを目的とする。
This invention was made to solve the above-mentioned problems, and it is a vehicle that uses only one inverter to continue driving the indoor fan to blow air even if the compressor stops during cooling operation. The purpose of this project is to obtain air conditioning control equipment for industrial use.

[問題点を解決するための手段] この発明に係る車両用空調制御装置は、インバ−夕と圧
縮機との間に開閉スイッチを設け、更“にインバータの
出力周波数が圧縮機の駆動周波数の下限値に達しても車
両同温度が下がり続けるときは開閉スイッチを開放し、
車両同温度が所望温度を越えたときは開閉スイッチを閉
成する切換制御手段を制御回路に設け、たちのである。
[Means for Solving the Problems] The vehicle air conditioning control device according to the present invention includes an on/off switch between the inverter and the compressor, and furthermore, the output frequency of the inverter is set to match the driving frequency of the compressor. If the vehicle temperature continues to drop even after reaching the lower limit, open the on/off switch.
The control circuit is provided with a switching control means that closes the open/close switch when the vehicle temperature exceeds a desired temperature.

[作用] この発明においては、車両同温度が所望温度以上のとき
は、インバータからの所定の出力周波数により圧縮機及
び室内ファンを駆動し、車両同温度が所望温度未満のと
きは、インバータの出力周波数を下限値まで減少させ、
更に冷房能力を減少させる場合は開閉スイッチを開放し
て圧縮機を停止させるが室内ファンは停止させない。
[Function] In this invention, when the vehicle temperature is higher than the desired temperature, the compressor and the indoor fan are driven by the predetermined output frequency from the inverter, and when the vehicle temperature is lower than the desired temperature, the inverter output is driven. Decrease the frequency to the lower limit,
To further reduce the cooling capacity, open the on/off switch to stop the compressor, but do not stop the indoor fan.

[実施例] 以下、この発明の一実施例を図について説明する。第1
図はこの発明の実施例を示すブロック図であり、(1)
、(1a)、(lb)、(2)及び(5)〜(7)は前
述の従来装置と同様のものである。
[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
The figure is a block diagram showing an embodiment of this invention, (1)
, (1a), (lb), (2), and (5) to (7) are similar to the conventional device described above.

(3A)は三対のトランジスタ(図示せず)から構成さ
れたmFのインバータであり、圧縮機(5)、室外ファ
ン(6)及び室内ファン(7)を駆動するようになって
いる。(4A)はインバータ(3A)内のトランジスタ
ベースに変調パルス(8)を印加し、インバータ(3A
)の出力周波数を制御する制御回路である。
(3A) is a mF inverter composed of three pairs of transistors (not shown), and is adapted to drive a compressor (5), an outdoor fan (6), and an indoor fan (7). (4A) applies a modulation pulse (8) to the transistor base in the inverter (3A), and
) is a control circuit that controls the output frequency of the

(10)は外部操作により制御回路(4A)に所望温度
を設定する温度設定手段、(11)は車両同温度を検出
して制御回路(4^)に温度信号を出力するサーミスタ
即ち温度センサである。(12)は圧縮機(5)及び室
外ファン(6)とインバータ(3A)との間に挿入され
、制御回路(4A)内の切換制御手段(図示せず)から
の切換信号(9)により開閉される開閉スイッチである
(10) is a temperature setting means that sets a desired temperature in the control circuit (4A) by external operation, and (11) is a thermistor, that is, a temperature sensor that detects the same temperature of the vehicle and outputs a temperature signal to the control circuit (4^). be. (12) is inserted between the compressor (5) and outdoor fan (6) and the inverter (3A), and is activated by a switching signal (9) from a switching control means (not shown) in the control circuit (4A). It is an open/close switch that opens and closes.

次に、第2図に示したタイミングチャート図を参照しな
がら、この発明の実施例の動作について説明する。
Next, the operation of the embodiment of the present invention will be described with reference to the timing chart shown in FIG.

いま所望温度Tsが設定され、車両同温度Tは所望温度
Tsより十分高い状態を想定する(第2図(a)参照)
。車両の冷房開始時には、開閉スイッチ(12)は切換
信号(9)により閉成(オン)されており、まず制御回
路(4A)はインバータ(3A)の出力周波数「を60
 Hzに制御する(第2図(b)参照)。
The desired temperature Ts is now set, and it is assumed that the vehicle temperature T is sufficiently higher than the desired temperature Ts (see Fig. 2 (a)).
. When cooling the vehicle starts, the on/off switch (12) is closed (turned on) by the switching signal (9), and the control circuit (4A) first changes the output frequency of the inverter (3A) to 60.
Hz (see FIG. 2(b)).

車両同温度Tが次第に下がってきて所望温度Tsに達す
ると、温度センサ(11)からの温度信号によりそれを
判別した制御回路(4A)は、冷房能力を減少させるた
め、インバータ(3A)の出力周波数fを減少させる。
When the vehicle temperature T gradually decreases and reaches the desired temperature Ts, the control circuit (4A) determines this based on the temperature signal from the temperature sensor (11) and changes the output of the inverter (3A) to reduce the cooling capacity. Decrease frequency f.

即ち、出力周波数fは一定時間毎に段階的に減少させら
れる。第2図(b)の例では、IQHzずつ出力周波数
fを減少させ、一定時間(例えば10秒)経過してもな
お車両同温度Tが下がり続ける場合は、更に1OHz減
少させている。このとき、圧縮機(5)及び室内ファン
(7)の駆動周波数は共にインバータ(3^)の出力周
波数rに従って減少する(第2図(c)、(e)参照)
That is, the output frequency f is decreased stepwise at regular intervals. In the example shown in FIG. 2(b), the output frequency f is decreased by IQHz, and if the vehicle temperature T continues to decrease even after a certain period of time (for example, 10 seconds) has elapsed, it is further decreased by 1 OHZ. At this time, the driving frequencies of the compressor (5) and the indoor fan (7) both decrease according to the output frequency r of the inverter (3^) (see Fig. 2 (c) and (e)).
.

こうして、インバータ(3A)の出力周波数rが60H
z→50Hz−40Hz→30Hzと減少されても車両
同温度Tが下がり続けるときには(第2図(a)参照)
、制御回路(4A)内の切換制御手段は切換信号(9)
をオフとし、開閉スイッチ(12)を開放する。従って
、圧縮機(5)は駆動を停止しく第2図(c)参照)、
冷房能力はなくなる。又、室外ファン(6)も開閉スイ
ッチ(12)と圧縮機(5)との間に接続されているた
め、開閉スイッチ(12)が開放されると、室外ファン
(6)は圧縮機(5)と共に停止する。その結果、イン
バータ(3A)の出力周波数fは、上限の60)12ま
で上がる。
In this way, the output frequency r of the inverter (3A) is 60H
When the vehicle temperature T continues to decrease even if the frequency is decreased from z→50Hz to 40Hz→30Hz (see Figure 2 (a))
, the switching control means in the control circuit (4A) uses the switching signal (9)
is turned off and the open/close switch (12) is opened. Therefore, the compressor (5) stops driving (see Figure 2(c)).
There will be no cooling capacity. Moreover, since the outdoor fan (6) is also connected between the on-off switch (12) and the compressor (5), when the on-off switch (12) is opened, the outdoor fan (6) is connected to the compressor (5). ) and stop. As a result, the output frequency f of the inverter (3A) increases to the upper limit of 60)12.

従って、インバータ(3A)と開閉スイッチ(12)と
の間に接続された室内ファン(7)は60Hzの駆動周
波数で送風駆動される(第2図(e)参照)。
Therefore, the indoor fan (7) connected between the inverter (3A) and the open/close switch (12) is driven to blow air at a driving frequency of 60 Hz (see FIG. 2(e)).

車両同温度Tが上昇して所望温度Ts以上になると、再
び冷房動作を開始するため、切換信号(9)をオンにし
て開閉スイッチ(12)を閉成することにより圧縮機(
5)を起動する。しかし、駆動周波数が1 OHz以上
の場合は圧縮機(5)内のモータが起動突入電流を発生
するので、インバータ(3^)を保護するため、その出
力周波数rを一旦0にしてから3011zに立ち上げる
When the vehicle temperature T rises to the desired temperature Ts or higher, the compressor (
5) Start. However, if the drive frequency is 1 OHz or more, the motor in the compressor (5) will generate a startup inrush current, so to protect the inverter (3^), its output frequency r should be set to 0 and then set to 3011z. Launch.

車両同温度Tが更に上昇するときには、前述とは逆にイ
ンバータ(3A)の出力周波数fをI OHzずつ増加
させる。そして、車両同温度Tが所望温度Tsに対し所
定の変動範囲内となれば、出力周波数rを一定に制御す
る。
When the vehicle temperature T further increases, the output frequency f of the inverter (3A) is increased by I OHz, contrary to the above. Then, when the vehicle temperature T falls within a predetermined variation range with respect to the desired temperature Ts, the output frequency r is controlled to be constant.

尚、上記実施例では、圧縮機(5)を再起動する際に、
インバータ(3A)の出力周波数rを一旦Oにしたが、
上述したように16Hz以下であれば任意の周波数を用
いても何ら支障はない。
In addition, in the above embodiment, when restarting the compressor (5),
Once the output frequency r of the inverter (3A) was set to O,
As mentioned above, there is no problem in using any frequency as long as it is 16 Hz or less.

[発明の効果] 以上のようにこの発明によれば、インバータと圧縮機と
の間に、開閉スイッチを設け、インバータの出力周波数
が圧縮機の駆動周波数の下限値に達しても車両内温度が
下がり続けるときは開閉スイッチを開放し、車両内温度
が所望温度を越えたときは開閉スイッチを閉成する切換
制御手段を制御回路に設けたので、唯一のインバータを
用いて、圧縮機を停止させても送風状態を維持できる車
両用空調制御装置が得られる効果がある。
[Effects of the Invention] As described above, according to the present invention, an on/off switch is provided between the inverter and the compressor, and even if the output frequency of the inverter reaches the lower limit of the drive frequency of the compressor, the temperature inside the vehicle remains constant. The control circuit is equipped with a switching control means that opens the on-off switch when the temperature continues to drop and closes the on-off switch when the temperature inside the vehicle exceeds the desired temperature, so the only inverter can be used to stop the compressor. This has the effect of providing a vehicle air conditioning control device that can maintain the air blowing state even when the air conditioner is in use.

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

第1図はこの発明の一実施例を示すブロック図、第2図
はこの発明の実施例の動作を説明するためのタイミング
チャート図、第3図は従来の車両用空調制御装置を示す
ブロック図である。 (3A)・・・インバータ   (4A)・・・制御回
路(5)・・・圧縮機     (7)・・・室内ファ
ン(9)・・・切換信号    (11)・・・温度セ
ンサ(12)・・・開閉スイッチ  Ts・・・所望温
度T・・・車両内温度 f・・・インバータの出力周波数 尚、図中、同一符号は同−又は相当部分を示す。 第3図 手続補正書(自発) 昭几0.舌2.艮4 日
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a timing chart diagram for explaining the operation of the embodiment of the invention, and Fig. 3 is a block diagram showing a conventional vehicle air conditioning control device. It is. (3A)...Inverter (4A)...Control circuit (5)...Compressor (7)...Indoor fan (9)...Switching signal (11)...Temperature sensor (12) ...Opening/closing switch Ts...Desired temperature T...Vehicle interior temperature f...Inverter output frequency In the drawings, the same reference numerals indicate the same or equivalent parts. Figure 3 Procedural amendment (voluntary) Showa 0. Tongue 2. 4th day

Claims (1)

【特許請求の範囲】 (1)冷媒を圧縮する圧縮機と、冷媒を蒸発させる室内
ファンと、前記圧縮機及び前記室内ファンを駆動するイ
ンバータと、所望温度を設定する温度設定手段と、車両
内温度を検出する温度センサと、前記所望温度及び前記
車両内温度に基づいて前記インバータの出力周波数を制
御する制御回路と、前記インバータと前記圧縮機との間
に設けられた開閉スイッチとを備え、前記制御回路は、
前記インバータの出力周波数が前記圧縮機の駆動周波数
の下限値に達しても前記車両内温度が下がり続けるとき
には前記開閉スイッチを開放し、前記車両内温度が前記
所望温度を越えたときには前記開閉スイッチを閉成する
切換制御手段を含むことを特徴とする車両用空調制御装
置。 (2)開閉スイッチが開放されたときは、インバータの
出力周波数を上限値とし、前記開閉スイッチが再び閉成
されるときは、前記インバータの出力周波数を、一旦所
定周波数以下にして前記開閉スイッチが閉成した後、圧
縮機の駆動周波数の下限値としたことを特徴とする特許
請求の範囲第1項記載の車両用空調制御装置。 (3)所定周波数が16Hzであることを特徴とする特
許請求の範囲第2項記載の車両用空調制御装置。(4)
インバータの出力を停止することにより、所定周波数以
下の出力周波数を得ることを特徴とする特許請求の範囲
第2項記載の車両用空調制御装置。 (5)車両内温度が所望温度以下になったとき、インバ
ータの出力周波数が、上限値から圧縮機の駆動周波数の
下限値まで、段階的に減少させられることを特徴とする
特許請求の範囲第1項乃至第4項のいずれかに記載の車
両用空調制御装置。
[Scope of Claims] (1) A compressor that compresses refrigerant, an indoor fan that evaporates the refrigerant, an inverter that drives the compressor and the indoor fan, a temperature setting means that sets a desired temperature, and a A temperature sensor that detects temperature, a control circuit that controls the output frequency of the inverter based on the desired temperature and the vehicle interior temperature, and an open/close switch provided between the inverter and the compressor, The control circuit includes:
When the temperature inside the vehicle continues to fall even when the output frequency of the inverter reaches a lower limit value of the driving frequency of the compressor, the opening/closing switch is opened, and when the temperature inside the vehicle exceeds the desired temperature, the opening/closing switch is opened. A vehicle air conditioning control device comprising switching control means that closes the air conditioner. (2) When the on-off switch is opened, the output frequency of the inverter is set to the upper limit value, and when the on-off switch is closed again, the output frequency of the inverter is set once below a predetermined frequency and the on-off switch is set to the upper limit. 2. The vehicle air conditioning control device according to claim 1, wherein after the compressor is closed, the drive frequency of the compressor is set to a lower limit value. (3) The vehicle air conditioning control device according to claim 2, wherein the predetermined frequency is 16 Hz. (4)
3. The vehicle air conditioning control device according to claim 2, wherein an output frequency equal to or lower than a predetermined frequency is obtained by stopping the output of the inverter. (5) When the temperature inside the vehicle falls below a desired temperature, the output frequency of the inverter is reduced in steps from an upper limit value to a lower limit value of the drive frequency of the compressor. The vehicle air conditioning control device according to any one of items 1 to 4.
JP60189491A 1985-08-30 1985-08-30 Air conditioning control device for vehicle Pending JPS6252342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60189491A JPS6252342A (en) 1985-08-30 1985-08-30 Air conditioning control device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60189491A JPS6252342A (en) 1985-08-30 1985-08-30 Air conditioning control device for vehicle

Publications (1)

Publication Number Publication Date
JPS6252342A true JPS6252342A (en) 1987-03-07

Family

ID=16242152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60189491A Pending JPS6252342A (en) 1985-08-30 1985-08-30 Air conditioning control device for vehicle

Country Status (1)

Country Link
JP (1) JPS6252342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010137613A (en) * 2008-12-09 2010-06-24 Calsonic Kansei Corp Air-conditioner for automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146740A (en) * 1974-10-18 1976-04-21 Hitachi Ltd Kukichowakino dosaseigyosochi
JPS56162342A (en) * 1980-05-20 1981-12-14 Mitsubishi Heavy Ind Ltd Air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146740A (en) * 1974-10-18 1976-04-21 Hitachi Ltd Kukichowakino dosaseigyosochi
JPS56162342A (en) * 1980-05-20 1981-12-14 Mitsubishi Heavy Ind Ltd Air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010137613A (en) * 2008-12-09 2010-06-24 Calsonic Kansei Corp Air-conditioner for automobile

Similar Documents

Publication Publication Date Title
US4966010A (en) Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls
JPS6152560A (en) Air conditioner
JP2002130148A (en) Method and apparatus for controlling at least one compressor of cooling system having variable speed drive
US5220806A (en) Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls
US5056328A (en) Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls
US5150583A (en) Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls
US5109678A (en) Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls
JPS6252342A (en) Air conditioning control device for vehicle
JPS58101281A (en) Control circuit for refrigerator
KR100502304B1 (en) Control method for compressor in air conditioner
JPS6252344A (en) Air conditioning control device for vehicle
JP4190098B2 (en) Air conditioner control device
JPS6252345A (en) Air conditioning control device for vehicle
KR20000037566A (en) Method for controlling inverter compressor of air conditioner
JPS6252343A (en) Air conditioning control device for vehicle
KR0137887B1 (en) Air-conditioning compressor driving control unit
JPH0623879Y2 (en) Air conditioner
JPH0325094Y2 (en)
KR100459091B1 (en) Refrigeration system control appratus and method
JP2001065947A (en) Control method of air conditioner
KR100197696B1 (en) Quick freezing device and method of a refrigerator
JPH0349039B2 (en)
JPH1073329A (en) Method and device for controlling speed of fan motors for refrigerator
KR100251567B1 (en) Cooling cycle and its control method
JPS63294447A (en) Air conditioner