JP3246249B2 - Heat pump cooling / heating dehumidification control device for electric vehicles - Google Patents
Heat pump cooling / heating dehumidification control device for electric vehiclesInfo
- Publication number
- JP3246249B2 JP3246249B2 JP02190095A JP2190095A JP3246249B2 JP 3246249 B2 JP3246249 B2 JP 3246249B2 JP 02190095 A JP02190095 A JP 02190095A JP 2190095 A JP2190095 A JP 2190095A JP 3246249 B2 JP3246249 B2 JP 3246249B2
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- signal
- refrigerant
- control
- mode
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電気自動車の車室内を
空地調和する電気自動車用ヒートポンプ冷暖房除湿制御
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump cooling / heating / dehumidifying control device for an electric vehicle which harmonizes the interior and the interior of the vehicle with an electric vehicle.
【０００２】[0002]
【従来の技術】従来この種の自動車用空気調和装置は、
例えば特開昭６３−１１６９２２号公報に示されるよう
に、電動圧縮機の負荷が大きくなると電動圧縮機の回転
数を低下させ、さらに高くなると電動圧縮機を一旦停止
させ、３分後に再起動させ電動圧縮機の回転数を設定値
に戻すというものであった。2. Description of the Related Art Conventionally, this type of automotive air conditioner is
For example, as shown in JP-A-63-116922, when the load on the electric compressor is increased, the rotation speed of the electric compressor is reduced, and when the load is further increased, the electric compressor is temporarily stopped and restarted after 3 minutes. The number of rotations of the electric compressor was returned to a set value.
【０００３】また家庭用エアコンの再起動も同様に電動
圧縮機停止後、電動圧縮機の高低圧の圧縮比が高い状態
において電動圧縮機を再起動すると再起動電流が大きく
なり、電動圧縮機駆動装置内のパワートランジスタ等の
容量が持たない為に、電動圧縮機の高低圧がほぼ均圧す
るまで一定時間待ってから電動圧縮機を再起動してい
る。[0003] Similarly, when the home air conditioner is restarted, if the electric compressor is stopped and then the electric compressor is restarted in a state where the high / low pressure compression ratio of the electric compressor is high, the restart current increases, and the electric compressor drive is started. Since the capacity of the power transistor and the like in the apparatus is not provided, the electric compressor is restarted after waiting for a certain time until the high and low pressures of the electric compressor are substantially equalized.
【０００４】[0004]
【発明が解決しようとする課題】上記従来技術の家庭用
のエアコンでは電動圧縮機の再起動させるのに高低圧が
均圧するまで数分間待たねばならず、その間空調装置は
停止しており自動車用空調装置用に電動圧縮機を使用す
る際に快適性の面で課題を有していた。In the above-described conventional home air conditioner, it is necessary to wait a few minutes until the high and low pressures are equalized in order to restart the electric compressor. There was a problem in terms of comfort when using an electric compressor for an air conditioner.
【０００５】また電動圧縮機内部に差圧がある状態での
起動は、電動圧縮機内部の軸受け部のオイル切れなど電
動圧縮機の耐久性の面で不具合が発生する。[0005] In addition, starting in a state where there is a differential pressure inside the electric compressor causes a problem in durability of the electric compressor such as running out of oil in a bearing portion inside the electric compressor.
【０００６】本発明は、電動圧縮機の耐久性の向上とと
もに起動時間を短縮させ、快適性の向上を図ることを目
的とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to improve the durability of an electric compressor, shorten the start-up time, and improve comfort.
【０００７】[0007]
（請求項１）本発明は、第１の手段として上記課題を解
決するために、冷房モードまたは暖房モードまたは除湿
暖房モードまたは圧縮機停止モードのいずれか一つの制
御モードを設定する制御モード設定手段と、前記電動圧
縮機のモータに通電し前記電動圧縮機を可変回転数にて
駆動するインバータと、前記制御モード設定手段からの
信号に基づき、少なくとも前記インバータ及び前記第１
の冷媒絞り装置及び前記第２の冷媒絞り装置を制御する
空調制御手段と、前記空調制御手段に、前記制御モード
設定手段からの信号に基づき、前記電動圧縮機の停止モ
ードを判定する圧縮機停止判定手段と、前記圧縮機停止
判定手段からの信号が圧縮機停止モードである時、圧縮
機停止モードに変更直前の制御モードを記憶する制御モ
ード記憶手段と、前記制御モード記憶手段及び圧縮機停
止判定手段からの信号に基づき、前記第１の冷媒絞り装
置と前記第２の冷媒絞り装置のどちらに差圧があるかを
判定する差圧判定手段と、前記差圧判定手段からの信号
に基づき、前記第１の冷媒絞り装置もしくは前記第２の
冷媒絞り装置を均圧状態に制御を行う均圧制御手段を設
けたものである。According to a first aspect of the present invention, there is provided a control mode setting means for setting any one of a cooling mode, a heating mode, a dehumidifying / heating mode, and a compressor stop mode as a first means. An inverter for energizing a motor of the electric compressor and driving the electric compressor at a variable speed; and at least the inverter and the first motor based on a signal from the control mode setting means.
Air-conditioning control means for controlling the refrigerant expansion device and the second refrigerant expansion device, and a compressor stop for the air-conditioning control device to determine a stop mode of the electric compressor based on a signal from the control mode setting device. Determining means; control mode storing means for storing a control mode immediately before changing to the compressor stop mode when a signal from the compressor stop determining means is the compressor stop mode; and control mode storing means and compressor stop Based on a signal from the determination unit, a differential pressure determination unit that determines which of the first refrigerant expansion device and the second refrigerant expansion device has a differential pressure, and based on a signal from the differential pressure determination unit. And a pressure equalization control means for controlling the first refrigerant expansion device or the second refrigerant expansion device to a pressure equalized state.
【０００８】（請求項２）本発明は、第２の手段として
上記課題を解決するために、車室外熱交換器と、前記車
室外熱交換器および第２の冷媒絞り装置をバイパスする
ように配された冷媒バイパス回路と、前記冷媒バイパス
回路内に配された第１の電磁開閉弁と、（請求項１）の
空調制御手段を、前記制御モード設定手段からの信号に
基づき、前記電動圧縮機の停止モードを判定する圧縮機
停止判定手段と、前記圧縮機停止判定手段からの信号が
圧縮機停止モードである時、圧縮機停止モードに変更直
前の制御モードを記憶する制御モード記憶手段と、前記
制御モード記憶手段及び圧縮機停止判定手段からの信号
に基づき、第１の冷媒絞り装置と前記第１の電磁開閉弁
のどちらに差圧があるかを判定する差圧判定手段と、前
記差圧判定手段からの信号に基づき、前記第１の冷媒絞
り装置もしくは前記第１の電磁開閉弁を均圧状態に制御
を行う均圧制御手段としたものである。In order to solve the above-mentioned problems, the present invention provides a heat exchanger outside the vehicle compartment, and bypasses the heat exchanger outside the vehicle compartment and the second refrigerant expansion device. A refrigerant bypass circuit disposed therein, a first electromagnetic on-off valve disposed in the refrigerant bypass circuit, and an air-conditioning control unit according to claim 1, wherein the air-conditioning control unit controls the electric compression based on a signal from the control mode setting unit. Compressor stop determination means for determining a compressor stop mode, and control mode storage means for storing a control mode immediately before changing to the compressor stop mode when a signal from the compressor stop determination means is the compressor stop mode. Based on signals from the control mode storage means and the compressor stop determination means, a differential pressure determination means for determining which of the first refrigerant throttle device and the first solenoid on-off valve has a differential pressure; Differential pressure judgment means Based on the signal, in which the first refrigerant throttling device or said first solenoid valve and a pressure equalization control means for controlling the pressure equalization.
【０００９】（請求項３）本発明は、第３の手段として
上記課題を解決するために、（請求項１）の空調制御手
段を前記制御モード設定手段からの信号に基づき、電動
圧縮機の起動開始を判定する圧縮機起動判定手段と、前
記制御モード設定手段からの信号に基づき、前記電動圧
縮機の停止モードを判定する圧縮機停止判定手段と、前
記圧縮機停止判定手段からの信号が圧縮機停止モードで
ある時、圧縮機停止モードに変更直前の制御モードを記
憶する制御モード記憶手段と、前記圧縮機起動判定手段
からの信号に基づき、圧縮機の起動開始後、所定時間信
号を出力するタイマー手段と、前記タイマー手段からの
信号が出力している時、前記制御モード記憶手段に基づ
き、第１の冷媒絞り装置と前記第２の冷媒絞り装置のど
ちらに差圧があるかを判定する差圧判定手段と、前記差
圧判定手段からの信号に基づき、前記第１の冷媒絞り装
置もしくは前記第２の冷媒絞り装置を均圧状態に制御を
行う均圧制御手段としたものである。According to a third aspect of the present invention, in order to solve the above-mentioned problems, the air conditioning control means of the first aspect is provided based on a signal from the control mode setting means. A signal from the compressor start determination means for determining the start of the compressor, a compressor stop determination means for determining the stop mode of the electric compressor based on a signal from the control mode setting means, and a signal from the compressor stop determination means. When in the compressor stop mode, a control mode storing means for storing a control mode immediately before changing to the compressor stop mode, and a signal for a predetermined time after starting the compressor start based on a signal from the compressor start determination means. The timer means for outputting, and when the signal from the timer means is outputting, based on the control mode storage means, there is a differential pressure in either the first refrigerant expansion device or the second refrigerant expansion device. And a pressure equalization control means for controlling the first refrigerant expansion device or the second refrigerant expansion device to a pressure equalized state based on a signal from the differential pressure determination device. It is.
【００１０】（請求項４）本発明は、第４の手段として
上記課題を解決するために、（請求項２）の空調制御手
段を、制御モード設定手段からの信号に基づき、電動圧
縮機の起動開始を判定する圧縮機起動判定手段と、前記
制御モード設定手段からの信号に基づき、前記電動圧縮
機の停止モードを判定する圧縮機停止判定手段と、前記
圧縮機停止判定手段からの信号が圧縮機停止モードであ
る時、圧縮機停止モードに変更直前の制御モードを記憶
する制御モード記憶手段と、前記圧縮機起動判定手段か
らの信号に基づき、圧縮機の起動開始後、所定時間信号
を出力するタイマー手段と、前記タイマー手段からの信
号が出力している時、前記制御モード記憶手段に基づ
き、第１の冷媒絞り装置と前記第１の電磁開閉弁のどち
らに差圧があるかを判定する差圧判定手段と、前記差圧
判定手段からの信号に基づき、前記第１の冷媒絞り装置
もしくは前記第１の電磁開閉弁を均圧状態に制御を行う
均圧制御手段としたものである。According to a fourth aspect of the present invention, in order to solve the above-mentioned problem, the air conditioning control means of the second aspect is provided, based on a signal from the control mode setting means, of the electric compressor. A signal from the compressor start determination means for determining the start of the compressor, a compressor stop determination means for determining the stop mode of the electric compressor based on a signal from the control mode setting means, and a signal from the compressor stop determination means. When in the compressor stop mode, a control mode storing means for storing a control mode immediately before changing to the compressor stop mode, and a signal for a predetermined time after starting the compressor start based on a signal from the compressor start determination means. Timer means for outputting, and when a signal from the timer means is being output, which of the first refrigerant expansion device and the first solenoid on-off valve has a differential pressure based on the control mode storage means. And a pressure equalizing control means for controlling the first refrigerant throttle device or the first solenoid on-off valve to a pressure equalized state based on a signal from the differential pressure determining means. is there.
【００１１】[0011]
【作用】本発明の第１の手段によれば、電動圧縮機の停
止モード時、圧縮機停止直前の制御モードに応じて、圧
力差の存在する部分が第１の冷媒絞り装置にあるのか、
それとも第２の冷媒絞り装置にあるのかを判定する差圧
判定手段からの信号に基づき、圧力差のある第１または
第２の冷媒絞り装置を制御して、次第に均圧させる均圧
制御手段を設けることにより、均圧時に発生する冷媒音
を抑え、しかも短時間に均圧させることが出来る。According to the first means of the present invention, in the stop mode of the electric compressor, depending on the control mode immediately before the stop of the compressor, whether the portion where the pressure difference exists exists in the first refrigerant expansion device,
Or, based on a signal from the differential pressure judging means for judging whether or not the refrigerant is in the second refrigerant expansion device, the first or second refrigerant expansion device having a pressure difference is controlled to gradually equalize the pressure. By providing the pressure equalizer, it is possible to suppress the refrigerant noise generated at the time of equalization and to equalize the pressure in a short time.
【００１２】本発明の第２の手段によれば、電動圧縮機
の停止モード時、圧縮機停止直前の制御モードに応じ
て、圧力差の存在する部分が第１の冷媒絞り装置にある
のか、もしくは第１の電磁開閉弁にあるのかを判断する
均圧制御手段を設けることにより、第１の手段よりも更
に短時間に均圧させることが出来る。According to the second means of the present invention, in the stop mode of the electric compressor, depending on the control mode immediately before the stop of the compressor, whether the pressure difference exists in the first refrigerant expansion device, Alternatively, by providing a pressure equalizing control means for judging whether or not the pressure is in the first electromagnetic on-off valve, the pressure can be equalized in a shorter time than in the first means.
【００１３】本発明の第３の手段によれば、圧縮機停止
直前の制御モードに応じて、圧力差の存在する部分が第
１の冷媒絞り装置にあるのか、それとも第２の冷媒絞り
装置にあるのかを判定する差圧判定手段からの信号に基
づき、電動圧縮機の起動開始から所定時間の間、圧力差
のある第１または第２の冷媒絞り装置を制御して、次第
に均圧させる均圧制御手段を設けている為、つまり圧縮
機停止時ではなく、圧縮機起動時に、均圧制御を行って
いるので、短時間に均圧させることが出来、しかも均圧
時に発生する冷媒音を第１の手段よりも更に、効果的に
抑えることが出来る。According to the third means of the present invention, depending on the control mode immediately before the compressor is stopped, whether the pressure difference exists in the first refrigerant expansion device or the second refrigerant expansion device. Based on the signal from the differential pressure determining means for determining whether there is pressure, the first or second refrigerant expansion device having a pressure difference is controlled for a predetermined time from the start of the electric compressor to gradually equalize the pressure. Since pressure control means is provided, that is, equalization control is performed not when the compressor is stopped but when the compressor is started, equalization can be achieved in a short time, and the refrigerant noise generated at the time of equalization is reduced. It can be suppressed more effectively than the first means.
【００１４】本発明の第４の手段によれば、圧縮機停止
直前の制御モードに応じて、圧力差の存在する部分が第
１の冷媒絞り装置にあるのか、それとも第１の電磁開閉
弁にあるのかを判定する差圧判定手段からの信号に基づ
き、電動圧縮機の起動開始から所定時間の間、圧力差の
ある第１の冷媒絞り装置または第１の電磁開閉弁を制御
して、次第に均圧させる均圧制御手段を設けている為、
言い替えると圧縮機停止時ではなく、圧縮機起動時に、
均圧制御を行っているので、第３の手段よりも更に短時
間に均圧させることが出来る。According to the fourth means of the present invention, depending on the control mode immediately before the stop of the compressor, whether the portion where the pressure difference exists is in the first refrigerant expansion device or whether the portion is located in the first solenoid on-off valve. Based on a signal from the differential pressure determination means for determining whether there is a pressure difference, the first refrigerant throttle device or the first electromagnetic opening / closing valve having a pressure difference is controlled for a predetermined time from the start of activation of the electric compressor, and gradually. Because equalizing pressure control means for equalizing is provided,
In other words, not when the compressor is stopped, but when the compressor starts,
Since the equalizing control is performed, the pressure can be equalized in a shorter time than in the third means.
【００１５】[0015]
【実施例】本発明の一実施例を図面により説明する。An embodiment of the present invention will be described with reference to the drawings.
【００１６】図１は、請求項１の電気自動車用ヒートポ
ンプ冷暖房除湿制御装置の一実施例の構成図である。FIG. 1 is a block diagram of an embodiment of a heat pump cooling / heating / dehumidifying control device for an electric vehicle according to the present invention.
【００１７】図１では、モータを内蔵した電動圧縮機１
と、車室外空気熱交換器２と、車室外空気熱交換器送風
装置３と、車室内空気熱交換器用送風装置６と、前記車
室内空気熱交換器用送風装置６と車室内吹出口８を結ぶ
第１の通風回路９と、前記第１の通風回路９内に配され
た第１の車室内空気熱交換器１０と、前記第１の車室内
空気熱交換器１０の下流側から分岐し再度前記第１の通
風回路９に合流している第２の通風回路３０と、前記第
１の通風回路９と前記第２の通風回路３０の風量調整を
行なうダンパ１２と、前記ダンパ１２の駆動用の通風回
路切り替えアクチュエータ３１と、前記第２の通風回路
３０内に配された第２の車室内空気熱交換器１１と、四
方切替え弁７と、前記電動圧縮機１と前記各熱交換器と
前記四方切替え弁７を結ぶ冷媒配管１３と、前記第１の
車室内空気熱交換器１０と前記第２の車室内空気熱交換
器１１間の前記冷媒配管１３に配された第１の冷媒絞り
装置１４と、前記第２の車室内空気熱交換器１１と前記
車室外空気熱交換器２間の前記冷媒配管１３に配された
第２の冷媒絞り装置１６と、前記四方切替え弁７と前記
車室外空気熱交換器２間の前記冷媒配管１３に配された
第１の双方向開閉弁２２と、前記第２の冷媒絞り装置１
６及び前記車室外空気熱交換器２及び前記第１の双方向
開閉弁２２とをバイパスするように配された冷媒バイパ
ス回路２１と、前記冷媒バイパス回路２１内に配された
第２の双方向開閉弁２３とで構成されている電気自動車
用ヒートポンプ冷暖房除湿装置において、電動圧縮機１
のモータを可変回転数で駆動するインバータ１５と、空
調操作パネル４内に、車室内へ吹き出す空気温度に対応
もしくは関連した設定を行う可変ＶＲを使用した温度設
定器２４と、同じく空調操作パネル４内に冷房モード、
暖房モード、除湿暖房モード、圧縮器停止モードの制御
モードを設定する為の３つのＳＷ（Ａ／Ｃ ＳＷ，暖房
ＳＷ、ドライＳＷ；３つのＳＷ全てオフで圧縮器停止モ
ード）を使用した制御モード設定手段１７と、風量設定
を行う風量設定手段２５から構成されている。更に、空
調制御手段５と、前記空調制御手段５は、前記制御モー
ド設定手段１７及び前記風量設定手段２５からの信号に
より前記電動圧縮機１の停止モードを判定する圧縮機停
止判定手段１８と、前記制御モード設定手段１７及び前
記圧縮機停止判定手段１８からの信号により圧縮機停止
直前の制御モードを記憶する制御モード記憶手段２６
と、前記圧縮機停止判定手段１８及び前記制御モード記
憶手段２６からの信号に基づき、差圧のある部分が第１
の冷媒絞り装置１４にあるのか、もしくは第２の冷媒絞
り装置１６にあるのかを判定する差圧判定手段２７と、
前記差圧判定手段２７の判定結果に基づき、前記第１の
冷媒絞り装置１４もしくは第２の冷媒絞り装置１６を均
圧するように信号を出力する均圧制御手段１９と、前記
均圧制御手段１９及び前記操作パネル４からの信号に基
づき、前記インバータ１５及び、前記第１の冷媒絞り装
置１４及び、前記第２の冷媒絞り装置１６及び、前記第
１の双方向開閉弁２２及び、第２の双方向開閉弁２３及
び、前記通風回路切り替えアクチュエータ３１の制御を
行う出力制御手段２０とで構成されている。FIG. 1 shows an electric compressor 1 having a built-in motor.
The outside air heat exchanger 2, the outside air heat exchanger blower 3, the inside air heat exchanger 6 and the inside air heat exchanger 6 and the inside air outlet 8. A first ventilation circuit 9 to be connected, a first vehicle interior air heat exchanger 10 disposed in the first ventilation circuit 9, and a branch from a downstream side of the first vehicle interior air heat exchanger 10. A second ventilation circuit 30 rejoining the first ventilation circuit 9, a damper 12 for adjusting the air volume of the first ventilation circuit 9 and the second ventilation circuit 30, and a drive of the damper 12 Circuit switching actuator 31 for use, a second vehicle interior air heat exchanger 11 disposed in the second ventilation circuit 30, a four-way switching valve 7, the electric compressor 1, and each of the heat exchangers A refrigerant pipe 13 connecting the four-way switching valve 7 and the first compartment air heat exchange A first refrigerant expansion device 14 disposed in the refrigerant pipe 13 between the second heat exchanger 10 and the second air heat exchanger 11; and a heat exchange between the second air heat exchanger 11 and the outside air. A second refrigerant throttle device 16 disposed in the refrigerant pipe 13 between the heat exchangers 2, and a first bidirectional disposed in the refrigerant pipe 13 between the four-way switching valve 7 and the outside air heat exchanger 2. On-off valve 22 and second refrigerant throttle device 1
6, a refrigerant bypass circuit 21 arranged to bypass the outside air heat exchanger 2 and the first bidirectional on-off valve 22, and a second bidirectional circuit arranged in the refrigerant bypass circuit 21 An electric vehicle heat pump air conditioner dehumidifier comprising an on-off valve 23 and an electric compressor 1
And a temperature setter 24 using a variable VR in the air-conditioning operation panel 4 for making settings corresponding to or relating to the temperature of the air blown into the vehicle cabin. In cooling mode,
Control mode using three SWs (A / C SW, heating SW, dry SW; compressor stop mode with all three SWs off) to set the control mode of heating mode, dehumidifying heating mode, and compressor stop mode It comprises a setting means 17 and an air volume setting means 25 for setting an air volume. Further, the air-conditioning control means 5, the air-conditioning control means 5 includes a compressor stop determination means 18 for determining a stop mode of the electric compressor 1 based on signals from the control mode setting means 17 and the air volume setting means 25, Control mode storage means 26 for storing the control mode immediately before the compressor is stopped based on signals from the control mode setting means 17 and the compressor stop determination means 18.
Based on the signals from the compressor stop determination means 18 and the control mode storage means 26,
Differential pressure judging means 27 for judging whether the refrigerant throttle device 14 is located in the second refrigerant throttle device 16 or not,
A pressure equalizing control means for outputting a signal to equalize the first refrigerant expansion device or the second refrigerant expansion device based on a result of the judgment by the differential pressure judgment device; And the signal from the operation panel 4, the inverter 15, the first refrigerant expansion device 14, the second refrigerant expansion device 16, the first bidirectional on-off valve 22, and the second It comprises a bidirectional on-off valve 23 and an output control means 20 for controlling the ventilation circuit switching actuator 31.
【００１８】よって、冷房を行う場合は、操作により、
空調操作パネル４内の風量設定手段２５を例えば２速に
設定し、空調操作パネル４内の制御モード選択ＳＷ２４
の冷房ＳＷをオンさせ、この信号に基づき空調制御手段
５内の出力制御手段２０は、ダンパ１２が図１の波線の
位置となる様（風が第１の通風回路９に流れる様）に通
風回路切り替えアクチュエータ３１を制御し、電動圧縮
機１から吐出された高温、高圧の冷媒が車室外空気熱交
換器２へ流れる様に、四方切替え弁７を実線で示す回路
に切替え、第１の双方向開閉弁２２を冷媒が車室外空気
熱交換器２に流れる様に全開し、一方の第２の双方向開
閉弁２３を冷媒が流れない様に全閉し、第１の冷媒絞り
装置１４は全開（絞りのない状態）の状態とし、第２の
冷媒絞り装置１６は絞り有りの状態にする。よって、電
動圧縮機１から吐出した冷媒は四方切替え弁７を経由
し、車室外空気熱交換器２と車室外空気熱交換器用送風
装置３で車室外空気に放熱して、冷媒を凝縮液化させた
後、その冷媒を第２の冷媒絞り装置１６を介して減圧し
た後、第２の車室内空気熱交換器１１、第１の冷媒絞り
装置１４、第１の車室内空気熱交換器１０に導きここで
車室内空気熱交換器用送風装置６で車室内もしくは車室
外の空気を冷却、減湿しながら蒸発し冷房作用を行な
い、この冷却された空気は第１の通風回路９を流れ車室
内に供給される。ここで、冷房ＳＷをオンからオフさせ
た場合、圧縮機停止判定手段１８は電動圧縮機１が停止
モードであると判定する。更に、制御モード記憶手段２
６は、圧縮機停止判定手段１８からの信号を受けて、圧
縮機がオフする直前の制御モードが冷房モードであるこ
とを記憶する。差圧判定手段２７は圧縮機停止判定手段
１８及び制御モード記憶手段２６からの信号を受けて、
差圧が第２の冷媒絞り装置１６にあることを判定する。
均圧制御手段１９は差圧判定手段２７からの信号を受け
て、第２の冷媒絞り装置１６を均圧するように、制御信
号を出力する。出力制御手段２０は実際に均圧制御手段
１９からの信号を受けて、第２の冷媒絞り装置１６が均
圧するように、出力する。以上のように、冷房ＳＷをオ
ンからオフして電動圧縮機を停止させると、差圧のある
第２の冷媒絞り装置１６を均圧させる様に、作動する。
また、冷房ＳＷがオン時、風量設定手段２５を風量をオ
フした時も前述と同様なので、説明を省略する。Therefore, when cooling is performed,
The air volume setting means 25 in the air conditioning operation panel 4 is set to, for example, the second speed, and the control mode selection SW 24 in the air conditioning operation panel 4 is set.
Is turned on, and based on this signal, the output control means 20 in the air-conditioning control means 5 performs ventilation so that the damper 12 is positioned at the wavy line in FIG. 1 (in such a manner that the wind flows to the first ventilation circuit 9). The circuit switching actuator 31 is controlled to switch the four-way switching valve 7 to a circuit indicated by a solid line so that the high-temperature, high-pressure refrigerant discharged from the electric compressor 1 flows to the outside air heat exchanger 2. The two-way on-off valve 22 is fully opened so that the refrigerant flows to the outside air heat exchanger 2, and one of the two-way on-off valves 23 is fully closed so that the refrigerant does not flow. The second refrigerant throttle device 16 is in a fully opened state (a state without a throttle), and is in a state with a throttle. Accordingly, the refrigerant discharged from the electric compressor 1 passes through the four-way switching valve 7 and radiates heat to the vehicle exterior air by the vehicle exterior air heat exchanger 2 and the vehicle exterior air heat exchanger blower 3 to condense and liquefy the refrigerant. After that, the refrigerant is decompressed through the second refrigerant expansion device 16 and then transmitted to the second vehicle interior air heat exchanger 11, the first refrigerant expansion device 14, and the first vehicle interior air heat exchanger 10. Here, the air inside or outside the vehicle compartment is cooled and dehumidified by the blower 6 for the vehicle interior air heat exchanger to perform a cooling action, and the cooled air flows through the first ventilation circuit 9 and flows through the vehicle interior. Supplied to Here, when the cooling SW is turned off from on, the compressor stop determination means 18 determines that the electric compressor 1 is in the stop mode. Further, the control mode storage means 2
6 receives the signal from the compressor stop determination means 18 and stores that the control mode immediately before the compressor is turned off is the cooling mode. The differential pressure determination unit 27 receives signals from the compressor stop determination unit 18 and the control mode storage unit 26,
It is determined that the differential pressure is in the second refrigerant expansion device 16.
The equalization control means 19 receives the signal from the differential pressure determination means 27 and outputs a control signal so as to equalize the pressure of the second refrigerant expansion device 16. The output control means 20 actually receives the signal from the pressure equalization control means 19 and outputs the signal so that the second refrigerant expansion device 16 equalizes the pressure. As described above, when the electric compressor is stopped by turning off the cooling SW from on, the second refrigerant expansion device 16 having a differential pressure is operated to equalize the pressure.
Further, when the cooling switch is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted.
【００１９】一方、暖房を行う場合は、操作により、空
調操作パネル４内の風量設定手段２５を例えば２速に設
定し、制御モード選択ＳＷ２４の暖房ＳＷをＯＮさせ、
この信号に基づき空調制御手段５内の出力制御手段２０
は、ダンパ１２が図１の実線の位置となる様（風が第２
の通風回路３０に流れる様）に通風回路切り替えアクチ
ュエータ３１を制御し、四方切替え弁７を冷房時の冷媒
流路と逆転（波線で示す回路）させ、冷房時と同様に、
第１の双方向開閉弁２２を冷媒が車室外空気熱交換器２
に流れる様に全開し、一方の第２の双方向開閉弁２３を
冷媒が流れない様に全閉し、第１の冷媒絞り装置１４の
絞りを開（絞りのない状態）とし、第２の冷媒絞り装置
１６の絞りを絞りのある状態とする。よって電動圧縮機
１から突出された冷媒は四方切替え弁７を経由し、高
圧、高温状態で第１の車室内空気熱交換器１０および第
２の車室内空気熱交換器１１で車室内空気に放熱して冷
媒を凝縮液化させた後、その冷媒を第２の冷媒絞り装置
１６を介して減圧させた後、車室外空気熱交換器２に導
き、ここで車室内外の空気を冷却、減湿しながら冷媒が
吸熱、蒸発させるヒートポンプ暖房を行う。ここで、暖
房ＳＷをオンからオフさせた場合、圧縮機停止判定手段
１８は電動圧縮機１を停止モードであると判定する。更
に、制御モード記憶手段２６は、圧縮機停止判定手段１
８からの信号を受けて、圧縮機がオフする直前の制御モ
ードが暖房モードであることを記憶する。差圧判定手段
２７は圧縮機停止判定手段１８及び制御モード記憶手段
２６からの信号を受けて、差圧が第２の冷媒絞り装置１
６にあることを判定する。均圧制御手段１９は差圧判定
手段２７からの信号を受けて、第２の冷媒絞り装置１６
を均圧するように、制御信号を出力する。出力制御手段
２０は実際に均圧制御手段１９からの信号を受けて、第
２の冷媒絞り装置１６が均圧するように、出力する。以
上のように、冷房ＳＷをオンからオフして電動圧縮機を
停止させると、差圧のある第２の冷媒絞り装置１６を均
圧させる様に、作動する。また、暖房ＳＷがオン時、風
量設定手段２５を風量をオフした時も前述と同様なの
で、説明を省略する。On the other hand, in the case of heating, the air volume setting means 25 in the air conditioning operation panel 4 is set to, for example, the second speed by operation, and the heating switch of the control mode selection switch 24 is turned on.
Based on this signal, the output control means 20 in the air conditioning control means 5
Is such that the damper 12 is at the position indicated by the solid line in FIG.
The airflow circuit switching actuator 31 is controlled to flow through the airflow circuit 30), and the four-way switching valve 7 is reversed (circuit indicated by a dashed line) with the refrigerant flow path at the time of cooling.
The refrigerant is supplied to the first two-way on-off valve 22 through the outside air heat exchanger 2
And the second bidirectional on-off valve 23 is fully closed so that the refrigerant does not flow, and the throttle of the first refrigerant throttle device 14 is opened (in a state where there is no throttle). The throttle of the refrigerant throttle device 16 is set to a state with a throttle. Therefore, the refrigerant protruding from the electric compressor 1 passes through the four-way switching valve 7 and is converted into the vehicle interior air by the first vehicle interior air heat exchanger 10 and the second vehicle interior air heat exchanger 11 at high pressure and high temperature. After the heat is radiated to condense and liquefy the refrigerant, the refrigerant is depressurized through the second refrigerant expansion device 16, and then guided to the outside air heat exchanger 2, where the air inside and outside the vehicle is cooled and reduced. Heat pump heating in which the refrigerant absorbs heat and evaporates while wetting. Here, when the heating SW is turned off from on, the compressor stop determination means 18 determines that the electric compressor 1 is in the stop mode. Further, the control mode storage means 26 stores the compressor stop determination means 1
In response to the signal from 8, the control mode immediately before the compressor is turned off is stored as the heating mode. The differential pressure judging means 27 receives signals from the compressor stop judging means 18 and the control mode storage means 26, and changes the differential pressure to the second refrigerant throttle device 1.
6 is determined. The equalizing control means 19 receives the signal from the differential pressure judging means 27 and receives the signal from the second refrigerant expansion device 16.
The control signal is output so as to equalize the pressure. The output control means 20 actually receives the signal from the pressure equalization control means 19 and outputs the signal so that the second refrigerant expansion device 16 equalizes the pressure. As described above, when the electric compressor is stopped by turning off the cooling SW from on, the second refrigerant expansion device 16 having a differential pressure is operated to equalize the pressure. Also, when the heating SW is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted.
【００２０】除湿暖房を行なう場合、操作により、空調
操作パネル４内の風量設定手段２５を例えば２速に設定
し、制御モード選択ＳＷ２４のドライＳＷをＯＮさせ、
空調制御手段５は、ダンパ１２が図１の実線の位置とな
る様（風が第２の通風回路３０に流れる様）に通風回路
切り替えアクチュエータ３１を制御し、四方切替え弁７
を実線で示す回路に切替え、第１の双方向開閉弁２２を
冷媒が車室外空気熱交換器２に流れない様に全閉し、一
方の第２の双方向開閉弁２３を冷媒が流れる様に全開
し、第１の冷媒絞り装置１４を絞り状態とし、第２の冷
媒絞り装置１６を開の状態（絞りのない状態）とする。
よって、電動圧縮機１から吐出された冷媒は高圧、高温
状態で第２の車室内空気熱交換器１１にはいる為、第２
の車室内空気熱交換器１１は高温となり、車室内空気に
放熱して、冷媒を凝縮液化させた後、第１の冷媒絞り装
置１４に導き、液化、低圧となり、第１の車室内空気熱
交換器１０で車室内外の空気を冷却、減湿しながら冷媒
が、吸熱、蒸発し、電動圧縮機１へ戻る。従って、風の
流れの面から説明すると、車室内空気熱交換器用送風装
置６により車室内外の空気を導き、第１の車室内空気熱
交換器１０で冷却、除湿された後、第２の車室内空気熱
交換器１１により再加熱され、車室内に放熱し、除湿暖
房を行う。ここで、ドライＳＷをオンからオフさせた場
合、圧縮機停止判定手段１８は電動圧縮機１を停止モー
ドであると判定する。更に、制御モード記憶手段２６
は、圧縮機停止判定手段１８からの信号を受けて、圧縮
機がオフする直前の制御モードがドライモードであるこ
とを記憶する。差圧判定手段２７は圧縮機停止判定手段
１８及び制御モード記憶手段２６からの信号を受けて、
差圧が第１の冷媒絞り装置１４にあることを判定する。
均圧制御手段１９は差圧判定手段２７からの信号を受け
て、第１の冷媒絞り装置１４を均圧するように、制御信
号を出力する。出力制御手段２０は実際に均圧制御手段
１９からの信号を受けて、第１の冷媒絞り装置１４が均
圧するように、出力する。以上のように、ドライＳＷを
オンからオフして電動圧縮機を停止させると、差圧のあ
る第１の冷媒絞り装置１４を均圧させる様に、作動す
る。また、ドライＳＷがオン時、風量設定手段２５を風
量をオフした時も前述と同様なので、説明を省略する。
図２は、請求項２の電気自動車用ヒートポンプ冷暖房除
湿制御装置の一実施例の構成図である。図１との違い
は、図２の差圧判定手段２７が、制御モード記憶手段２
６及び圧縮機停止判定手段１８からの信号に基づき、前
記第１の冷媒絞り装置１４と前記第２の双方向開閉弁２
３のどちらに差圧があるかを判定することとしており、
図２の均圧制御手段１９が、前記差圧判定手段２７から
の信号に基づき、前記第１の冷媒絞り装置１４もしくは
前記第２の双方向開閉弁２３を均圧状態に制御を行うこ
ととしている。以上の２点が相違しているのみである。
従って、ドライモード時の電動圧縮機１の停止時につい
ては、請求項１の一実施例で説明した内容と同様に第１
の冷媒絞り装置１４を開いて均圧させている。また冷房
モード時及び、暖房モード時の電動圧縮機１の停止時に
ついては、第２の双方向開閉弁２３を開いて均圧させて
いる。When performing dehumidifying heating, the air volume setting means 25 in the air conditioning operation panel 4 is set to, for example, the second speed by operation, and the dry switch of the control mode selection switch 24 is turned on.
The air-conditioning control means 5 controls the ventilation circuit switching actuator 31 so that the damper 12 is at the position indicated by the solid line in FIG. 1 (in such a manner that the wind flows to the second ventilation circuit 30), and the four-way switching valve 7
Is switched to a circuit indicated by a solid line, the first two-way on-off valve 22 is fully closed so that the refrigerant does not flow to the outside air heat exchanger 2, and the refrigerant flows through one second two-way on-off valve 23. , The first refrigerant expansion device 14 is set to a throttled state, and the second refrigerant expansion device 16 is set to an open state (a state without a throttle).
Therefore, the refrigerant discharged from the electric compressor 1 enters the second vehicle interior air heat exchanger 11 at a high pressure and a high temperature.
Of the vehicle interior air heat exchanger 11 becomes high temperature, radiates heat to the vehicle interior air to condense and liquefy the refrigerant, and then guides the refrigerant to the first refrigerant expansion device 14, where the refrigerant is liquefied and has a low pressure. The refrigerant absorbs heat and evaporates while cooling and dehumidifying the air inside and outside the vehicle interior by the exchanger 10, and returns to the electric compressor 1. Therefore, in terms of the flow of the wind, the air inside and outside the vehicle compartment is guided by the air blower 6 for the vehicle interior air heat exchanger, and after being cooled and dehumidified by the first vehicle interior air heat exchanger 10, It is reheated by the vehicle interior air heat exchanger 11, radiates heat into the vehicle interior, and performs dehumidifying and heating. Here, when the dry SW is turned off from on, the compressor stop determination means 18 determines that the electric compressor 1 is in the stop mode. Further, the control mode storage means 26
Receives the signal from the compressor stop determination means 18 and stores that the control mode immediately before the compressor is turned off is the dry mode. The differential pressure determination unit 27 receives signals from the compressor stop determination unit 18 and the control mode storage unit 26,
It is determined that the differential pressure is in the first refrigerant expansion device 14.
The equalizing control means 19 receives a signal from the differential pressure determining means 27 and outputs a control signal so as to equalize the pressure of the first refrigerant expansion device 14. The output control means 20 actually receives the signal from the pressure equalization control means 19 and outputs the signal so that the first refrigerant expansion device 14 equalizes the pressure. As described above, when the dry SW is turned off from on and the electric compressor is stopped, the first refrigerant expansion device 14 having a differential pressure is operated to equalize the pressure. Further, when the dry SW is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted.
FIG. 2 is a block diagram of an embodiment of a heat pump cooling / heating / dehumidifying control device for an electric vehicle according to claim 2. The difference from FIG. 1 is that the differential pressure determination means 27 in FIG.
6 and the signal from the compressor stop determination means 18, the first refrigerant expansion device 14 and the second bidirectional on-off valve 2
3 is to determine which of the differential pressures,
It is assumed that the equalizing control means 19 in FIG. 2 controls the first refrigerant expansion device 14 or the second bidirectional on-off valve 23 to an equalized state based on the signal from the differential pressure determining means 27. I have. Only the above two points are different.
Therefore, when the electric compressor 1 is stopped in the dry mode, the first operation is performed in the same manner as described in the first embodiment.
Is opened to equalize the pressure. When the electric compressor 1 is stopped in the cooling mode and the heating mode, the second bidirectional on-off valve 23 is opened to equalize the pressure.
【００２１】図３は、請求項３の電気自動車用ヒートポ
ンプ冷暖房除湿制御装置の一実施例の構成図である。冷
凍サイクルの構成は図１及び図２と同様なので、説明を
省略する。従って、図３に示す図１と同様の電気自動車
用ヒートポンプ冷暖房除湿装置において、電動圧縮機１
のモータを可変回転数で駆動するインバータ１５と、空
調操作パネル４内に、車室内へ吹き出す空気温度に対応
もしくは関連した設定を行う可変ＶＲを使用した温度設
定器２４と、同じく空調操作パネル４内に冷房モード、
暖房モード、除湿暖房モード、圧縮器停止モードの制御
モードを設定する為の３つのＳＷ（Ａ／Ｃ ＳＷ，暖房
ＳＷ、ドライＳＷ：３つのＳＷ全てオフで圧縮器停止モ
ード）を使用した制御モード設定手段１７と、風量設定
を行う風量設定手段２５から構成されている。更に、空
調制御手段５と、前記空調制御手段５を、前記制御モー
ド設定手段１７及び前記風量設定手段２５からの信号に
基づき、電動圧縮機１の起動開始を判定する圧縮機起動
判断手段２８と、前記制御モード設定手段１７及び前記
風量設定手段２５からの信号に基づき、前記電動圧縮機
１の停止モードを判定する圧縮機停止判定手段１８と、
前記圧縮機停止判定手段１８からの信号が圧縮機停止モ
ードである時、その直前の制御モードを記憶する制御モ
ード記憶手段２６と、前記圧縮機起動判定手段２８から
の信号に基づき、電動圧縮機の起動開始後、所定時間信
号を出力するタイマー手段２９と、前記タイマー手段２
９からの信号が出力している時、前記制御モード記憶手
段２６に基づき、前記第１の冷媒絞り装置１４と前記第
２の冷媒絞り装置１６のどちらに差圧があるかを判定す
る差圧判定手段２７と、前記差圧判定手段２７からの信
号に基づき、前記第１の冷媒絞り装置１４もしくは前記
第２の冷媒絞り装置１６を前記タイマー手段２９が信号
を出力している間のみ、均圧状態に制御を行う均圧制御
手段１９とで構成されている。ここで、冷房ＳＷをオン
からオフさせた場合、圧縮機停止判定手段１８は電動圧
縮機１が停止モードであると判定する。更に、制御モー
ド記憶手段２６は、圧縮機停止判定手段１８からの信号
を受けて、圧縮機がオフする直前の制御モードが冷房モ
ードであることを記憶する。その後、再び、冷房ＳＷを
オフからオンさせた時、圧縮機起動判定手段２８は、電
動圧縮機１が起動開始を判定する。更に、タイマー手段
２９は、圧縮機起動判定手段２８からの起動開始の信号
を受けて、所定時間、例えば５秒間の信号を出力する。
差圧判定手段２７はタイマー手段２９及び制御モード記
憶手段２６からの信号を受けて、差圧が第２の冷媒絞り
装置１６にあることを判定する。均圧制御手段１９は差
圧判定手段２７からの信号を受けて、第２の冷媒絞り装
置１６を均圧するように、制御信号を出力する。出力制
御手段２０は実際に均圧制御手段１９からの信号を受け
て、第２の冷媒絞り装置１６が均圧するように、出力す
る。以上のように、冷房ＳＷをオンからオフして電動圧
縮機を停止させた後、再び冷房ＳＷをオフからオンして
電動圧縮機を起動させた際、差圧のある第２の冷媒絞り
装置１６を均圧させる様に、作動する。また、冷房ＳＷ
がオン時、風量設定手段２５を風量をオフした時も前述
と同様なので、説明を省略する。また暖房ＳＷをオンか
らオフさせて、再びオフからオンさせた場合も、前述し
た通りと同様であり、差圧のある第２の冷媒絞り装置１
６を均圧させる様に、作動する。また、暖房ＳＷがオン
時、風量設定手段２５を風量をオフした時も前述と同様
なので、説明を省略する。更にドライＳＷをオンからオ
フさせて、再びオフからオンさせた場合も、前述した冷
房ＳＷと同様であるが、差圧のある第１の冷媒絞り装置
１４を均圧させる様に、作動する。また、ドライＳＷが
オン時、風量設定手段２５を風量をオフした時も前述と
同様なので、説明を省略する。図４は、請求項４の電気
自動車用ヒートポンプ冷暖房除湿制御装置の一実施例の
構成図である。図３との違いは、図４の差圧判定手段２
７が、タイマー手段２９からの信号が出力している時、
制御モード記憶手段２６に基づき、第１の冷媒絞り装置
１４と第２の双方向開閉弁２３のどちらに差圧があるか
を判定することとしており、図４の均圧制御手段１９
が、前記差圧判定手段２７からの信号に基づき、前記第
１の冷媒絞り装置１４もしくは前記第２の双方向開閉弁
２３を前記タイマー手段２９が信号を出力している間の
み、均圧状態に制御を行うこととしている。以上の２点
が相違しているのみである。従って、冷房ＳＷをオンか
らオフさせて、再びオフからオンさせた場合、請求項３
で説明した通りと同様であるが、差圧のある第２の双方
向開閉弁２３を均圧させる様に作動する。また、冷房Ｓ
Ｗがオン時、風量設定手段２５を風量をオフ後、風量を
オンした時も前述と同様なので、説明を省略する。また
暖房ＳＷをオンからオフさせて、再びオフからオンさせ
た場合も、前述した通りと同様であり、差圧のある第２
の冷媒絞り装置１６を均圧させる様に、作動する。ま
た、暖房ＳＷがオン時、風量設定手段２５を風量をオフ
した時も前述と同様なので、説明を省略する。更にドラ
イＳＷをオンからオフさせて、再びオフからオンさせた
場合も、前述した冷房ＳＷと同様であるが、差圧のある
第１の冷媒絞り装置１４を均圧させる様に、作動する。
また、ドライＳＷがオン時、風量設定手段２５を風量を
オフ後、風量をオンした時も前述と同様なので、説明を
省略する。FIG. 3 is a block diagram showing an embodiment of a heat pump cooling / heating / dehumidifying control device for an electric vehicle according to the present invention. Since the configuration of the refrigeration cycle is the same as in FIGS. 1 and 2, the description is omitted. Accordingly, in the electric vehicle heat pump air conditioner dehumidifier similar to that shown in FIG.
And a temperature setter 24 using a variable VR in the air-conditioning operation panel 4 for making settings corresponding to or relating to the temperature of the air blown into the vehicle cabin. In cooling mode,
Control mode using three SWs (A / C SW, heating SW, dry SW: compressor stop mode with all three switches off) to set the control mode of heating mode, dehumidifying heating mode, and compressor stop mode It comprises a setting means 17 and an air volume setting means 25 for setting an air volume. Further, the air-conditioning control means 5 and a compressor start-judgment means 28 for judging the start of the electric compressor 1 based on signals from the control mode setting means 17 and the air volume setting means 25 are provided. A compressor stop determination unit 18 that determines a stop mode of the electric compressor 1 based on signals from the control mode setting unit 17 and the air volume setting unit 25;
When the signal from the compressor stop judging means 18 is the compressor stop mode, a control mode storing means 26 for storing the immediately preceding control mode and an electric compressor based on the signal from the compressor start judging means 28 Timer means 29 for outputting a signal for a predetermined time after the start of
9 is output, the differential pressure judging which of the first refrigerant expansion device 14 and the second refrigerant expansion device 16 has a differential pressure based on the control mode storage means 26. Based on the signal from the judging means 27 and the differential pressure judging means 27, the first refrigerant throttling device 14 or the second refrigerant throttling device 16 is averaged only while the timer means 29 is outputting a signal. Pressure equalizing control means 19 for controlling the pressure state. Here, when the cooling SW is turned off from on, the compressor stop determination means 18 determines that the electric compressor 1 is in the stop mode. Further, the control mode storage unit 26 receives the signal from the compressor stop determination unit 18 and stores that the control mode immediately before the compressor is turned off is the cooling mode. Thereafter, when the cooling SW is turned on again from off, the compressor start determining means 28 determines that the electric compressor 1 starts to be started. Further, the timer unit 29 receives a start start signal from the compressor start determination unit 28 and outputs a signal for a predetermined time, for example, 5 seconds.
The differential pressure determining unit 27 receives signals from the timer unit 29 and the control mode storage unit 26 and determines that the differential pressure is present in the second refrigerant expansion device 16. The equalization control means 19 receives the signal from the differential pressure determination means 27 and outputs a control signal so as to equalize the pressure of the second refrigerant expansion device 16. The output control means 20 actually receives the signal from the pressure equalization control means 19 and outputs the signal so that the second refrigerant expansion device 16 equalizes the pressure. As described above, when the electric compressor is stopped by turning off the cooling SW from on to stop the electric compressor and then starting the electric compressor by turning on the cooling SW again from off, the second refrigerant expansion device having a differential pressure It operates to equalize 16. Cooling SW
Is ON, and when the air volume setting means 25 turns off the air volume, it is the same as described above, and the description is omitted. The same applies to the case where the heating SW is turned off from on and then on again from off, as described above.
It operates to equalize 6. Also, when the heating SW is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted. Further, when the dry SW is turned off from on and then turned on again, it is the same as the above-mentioned cooling SW, but operates so as to equalize the first refrigerant expansion device 14 having a differential pressure. Further, when the dry SW is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted. FIG. 4 is a block diagram of an embodiment of a heat pump cooling / heating and dehumidifying control device for an electric vehicle according to claim 4. The difference from FIG. 3 is that the differential pressure determination means 2 in FIG.
7, when the signal from the timer means 29 is output,
Based on the control mode storage means 26, it is determined which of the first refrigerant expansion device 14 and the second bidirectional on-off valve 23 has a differential pressure.
However, based on the signal from the differential pressure determination means 27, the first refrigerant expansion device 14 or the second bidirectional on-off valve 23 is set to the pressure equalized state only while the timer means 29 is outputting a signal. Is to be controlled. Only the above two points are different. Therefore, when the cooling switch is turned off from on and then turned on again from off,
As described above, it operates to equalize the pressure of the second bidirectional on-off valve 23 having a differential pressure. In addition, cooling S
When W is on, the air volume setting means 25 turns off the air volume, and then turns on the air volume. The same applies to the case where the heating SW is turned off from on and then turned on again from off, as described above.
It operates so as to equalize the refrigerant expansion device 16. Also, when the heating SW is turned on and the air volume setting means 25 is turned off the air volume is the same as described above, the description is omitted. Further, when the dry SW is turned off from on and then turned on again, it is the same as the above-mentioned cooling SW, but operates so as to equalize the first refrigerant expansion device 14 having a differential pressure.
Also, when the dry SW is on, the air volume setting means 25 turns off the air volume, and then turns on the air volume.
【００２２】[0022]
（請求項１） 本発明の第１の手段によれば、操作パネ
ル等の操作により、電動圧縮機が停止している時を利用
して、均圧させており、しかも膨張弁にて均圧させてい
るので、均圧時に発生する冷媒音を抑え、かつ短時間に
均圧させることが出来るので、再起動時の快適性の向上
と電動圧縮機の耐久性の向上をはかることが出来る。According to the first aspect of the present invention, the pressure is equalized by operating the operation panel or the like while the electric compressor is stopped, and the pressure is equalized by the expansion valve. As a result, the refrigerant noise generated at the time of pressure equalization can be suppressed and the pressure can be equalized in a short time, so that the comfort at the time of restart and the durability of the electric compressor can be improved.
【００２３】本発明の第２の手段によれば、第１の手段
よりも更に短時間に均圧させることが出来るので、再起
動時の快適性の向上と電動圧縮機の耐久性の向上をはか
ることが出来る。According to the second means of the present invention, the pressure can be equalized in a shorter time than in the first means, so that the comfort at the time of restarting and the durability of the electric compressor can be improved. You can measure.
【００２４】本発明の第３の手段によれば、電動圧縮機
停止中に、膨張弁の絞りを通じて徐々に均圧していき、
再起動時、膨張弁を開いて完全に均圧する様にしている
ので、第１の手段よりも更に、均圧時間の短縮と、均圧
時に発生する冷媒音を低減させることができるとともに
再起動時の快適性の向上と電動圧縮機の耐久性の向上を
はかることができる。According to the third aspect of the present invention, while the electric compressor is stopped, the pressure is gradually equalized through the throttle of the expansion valve.
At the time of restart, since the expansion valve is opened to completely equalize the pressure, the equalizing time can be further reduced and the refrigerant noise generated at the time of equalizing can be reduced, and the restart can be performed. It is possible to improve the comfort at the time and the durability of the electric compressor.
【００２５】本発明の第４の手段によれば、第３の手段
よりも更に短時間に均圧させることが出来るので、再起
動時の快適性の向上と電動圧縮機の耐久性の向上をはか
ることが出来る。According to the fourth means of the present invention, the pressure can be equalized in a shorter time than in the third means, so that the comfort at the time of restarting and the durability of the electric compressor can be improved. You can measure.
【図１】請求項１の電気自動車用ヒートポンプ冷暖房除
湿装置の一実施例の構成図FIG. 1 is a configuration diagram of one embodiment of a heat pump air conditioner dehumidifier for an electric vehicle according to claim 1;
【図２】請求項２の電気自動車用ヒートポンプ冷暖房除
湿装置の一実施例の構成図FIG. 2 is a configuration diagram of an embodiment of a heat pump air conditioner dehumidifier for electric vehicles according to claim 2;
【図３】請求項３の電気自動車用ヒートポンプ冷暖房除
湿装置の一実施例の構成図FIG. 3 is a configuration diagram of an embodiment of a heat pump air conditioner dehumidifier for an electric vehicle according to claim 3;
【図４】請求項４の電気自動車用ヒートポンプ冷暖房除
湿装置の一実施例の構成図FIG. 4 is a block diagram of one embodiment of a heat pump air conditioner dehumidifier for an electric vehicle according to claim 4;
１ 電動圧縮機 ２ 車室外空気熱交換器 ３ 車室外空気熱交換器用送風装置 ４ 操作パネル ５ 空調制御手段 ６ 車室内空気熱交換器用送風装置 ７ 四方切替弁 ８ 車室内吹出口 ９ 第１の通風回路 １０ 第１の車室内空気熱交換器 １１ 第２の車室内空気熱交換器 １２ ダンパ １３ 冷媒配管 １４ 第１の冷媒絞り装置 １５ インバータ １６ 第２の冷媒絞り装置 １７ 制御モード設定手段 １８ 圧縮器停止判定手段 １９ 均圧制御手段 ２０ 出力制御手段 ２１ 冷媒バイパス回路 ２２ 第１の双方向開閉弁 ２３ 第２の双方向開閉弁 ２４ 温度調節器 ２５ 風量設定器 ２６ 制御モード記憶手段 ２７ 差圧判定手段 ２８ 圧縮器起動判定手段 ２９ タイマー手段 ３０ 第２の通風回路 ３１ 通風回路切り替えアクチュエータ REFERENCE SIGNS LIST 1 electric compressor 2 exterior air heat exchanger 3 exterior air heat exchanger blower 4 operation panel 5 air conditioning control means 6 interior air heat exchanger blower 7 four-way switching valve 8 interior air outlet 9 first ventilation Circuit 10 First cabin air heat exchanger 11 Second cabin air heat exchanger 12 Damper 13 Refrigerant pipe 14 First refrigerant throttle device 15 Inverter 16 Second refrigerant throttle device 17 Control mode setting means 18 Compressor Stop determination means 19 Equalization control means 20 Output control means 21 Refrigerant bypass circuit 22 First two-way on-off valve 23 Second two-way on-off valve 24 Temperature controller 25 Air volume setting unit 26 Control mode storage means 27 Differential pressure determination means 28 Compressor activation determination means 29 Timer means 30 Second ventilation circuit 31 Ventilation circuit switching actuator
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ▲よし▼田 誠 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭59−183255（ＪＰ，Ａ) 特開 平６−344758（ＪＰ，Ａ) 特開 平４−13051（ＪＰ，Ａ) 特開 平６−323646（ＪＰ，Ａ) 特開 平５−178069（ＪＰ，Ａ) 特開 平５−96940（ＪＰ，Ａ) 実開 昭59−21461（ＪＰ，Ｕ) 実開 平４−106462（ＪＰ，Ｕ) 実開 昭63−108059（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60H 1/22 671 B60H 1/32 624 B60H 3/00 F25B 13/00 F25B 13/00 103 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Yoshi ▼ Makoto Tadashi 1006 Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-59-183255 (JP, A) JP-A-6-344758 (JP, A) JP-A-4-13051 (JP, A) JP-A-6-323646 (JP, A) JP-A-5-178069 (JP, A) JP-A-5-96940 (JP) , A) Japanese Utility Model Showa 59-21461 (JP, U) Japanese Utility Model Hei 4-106462 (JP, U) Japanese Utility Model Showa 63-108059 (JP, U) (58) Fields surveyed (Int. Cl. 7 , DB Name) B60H 1/22 671 B60H 1/32 624 B60H 3/00 F25B 13/00 F25B 13/00 103
Claims (4)
置と、冷房モードまたは暖房モードまたは除湿暖房モー
ドまたは圧縮機停止モードのいずれか一つの制御モード
を設定する制御モード設定手段と、電動圧縮機のモータ
に通電し前記電動圧縮機を可変回転数にて駆動するイン
バータと、前記制御モード設定手段からの信号に基づ
き、少なくとも前記インバータ及び前記第１の冷媒絞り
装置及び前記第２の冷媒絞り装置を制御する空調制御手
段と、前記空調制御手段に、前記制御モード設定手段か
らの信号に基づき、前記電動圧縮機の停止モードを判定
する圧縮機停止判定手段と、前記圧縮機停止判定手段か
らの信号が圧縮機停止モードである時、圧縮機停止モー
ドに変更直前の制御モードを記憶する制御モード記憶手
段と、前記制御モード記憶手段及び圧縮機停止判定手段
からの信号に基づき、前記第１の冷媒絞り装置と前記第
２の冷媒絞り装置のどちらに差圧があるかを判定する差
圧判定手段と、前記差圧判定手段からの信号に基づき、
前記第１の冷媒絞り装置もしくは前記第２の冷媒絞り装
置を均圧状態に制御を行う均圧制御手段とを具備したこ
とを特徴とする電気自動車用ヒートポンプ冷暖房除湿制
御装置。A first refrigerant expansion device, a second refrigerant expansion device, and control mode setting means for setting any one of a cooling mode, a heating mode, a dehumidifying / heating mode, and a compressor stop mode. An inverter that energizes a motor of the electric compressor and drives the electric compressor at a variable speed; and at least the inverter, the first refrigerant expansion device, and the second compressor based on a signal from the control mode setting means. Air-conditioning control means for controlling the refrigerant expansion device; compressor stop determination means for determining a stop mode of the electric compressor based on a signal from the control mode setting means; Control mode storage means for storing a control mode immediately before changing to the compressor stop mode when the signal from the determination means is the compressor stop mode; A differential pressure determining unit that determines which of the first refrigerant expansion device and the second refrigerant expansion device has a differential pressure based on a signal from a storage unit and a compressor stop determination unit; Based on the signal from the means,
A heat pump cooling / heating and dehumidification control device for an electric vehicle, comprising: a pressure equalization control unit that controls the first refrigerant expansion device or the second refrigerant expansion device to an equal pressure state.
よび第２の冷媒絞り装置をバイパスするように配された
冷媒バイパス回路と、前記冷媒バイパス回路内に配され
た第１の電磁開閉弁と、空調制御手段を、前記制御モー
ド設定手段からの信号に基づき、電動圧縮機の停止モー
ドを判定する圧縮機停止判定手段と、前記圧縮機停止判
定手段からの信号が圧縮機停止モードである時、圧縮機
停止モードに変更直前の制御モードを記憶する制御モー
ド記憶手段と、前記制御モード記憶手段及び圧縮機停止
判定手段からの信号に基づき、第１の冷媒絞り装置と前
記第１の電磁開閉弁のどちらに差圧があるかを判定する
差圧判定手段と、前記差圧判定手段からの信号に基づ
き、前記第１の冷媒絞り装置もしくは前記第１の電磁開
閉弁を均圧状態に制御を行う均圧制御手段とを具備した
ことを特徴とする請求項１記載の電気自動車用ヒートポ
ンプ冷暖房除湿制御装置。2. An external heat exchanger, a refrigerant bypass circuit arranged to bypass the external heat exchanger and a second refrigerant expansion device, and a first heat exchanger disposed in the refrigerant bypass circuit. An electromagnetic on / off valve, an air conditioning control unit, a compressor stop determination unit that determines a stop mode of the electric compressor based on a signal from the control mode setting unit, and a signal from the compressor stop determination unit that stops the compressor. When in the mode, the control mode storage means for storing a control mode immediately before changing to the compressor stop mode, and the first refrigerant expansion device and the second refrigerant throttle apparatus based on signals from the control mode storage means and the compressor stop determination means. The first refrigerant throttle device or the first electromagnetic on-off valve based on a signal from the differential pressure determining means for determining which of the first electromagnetic on-off valve has a differential pressure; Control over pressure Claim 1 electric vehicle heat pump air conditioning dehumidification control device, wherein by comprising a pressure equalization control means for performing.
の信号に基づき、電動圧縮機の起動開始を判定する圧縮
機起動判定手段と、前記制御モード設定手段からの信号
に基づき、前記電動圧縮機の停止モードを判定する圧縮
機停止判定手段と、前記圧縮機停止判定手段からの信号
が圧縮機停止モードである時、圧縮機停止モードに変更
直前の制御モードを記憶する制御モード記憶手段と、前
記圧縮機起動判定手段からの信号に基づき、圧縮機の起
動開始後、所定時間信号を出力するタイマー手段と、前
記タイマー手段からの信号が出力している時、前記制御
モード記憶手段に基づき、第１の冷媒絞り装置と第２の
冷媒絞り装置のどちらに差圧があるかを判定する差圧判
定手段と、前記差圧判定手段からの信号に基づき、前記
第１の冷媒絞り装置もしくは前記第２の冷媒絞り装置を
均圧状態に制御を行う均圧制御手段とを具備した請求項
１記載の電気自動車用ヒートポンプ冷暖房除湿制御装
置。3. An air-conditioning control means, comprising: a compressor start-judgment means for judging start-up of an electric compressor based on a signal from a control mode setting means; and an electric compressor based on a signal from the control mode setting means. Compressor stop determination means for determining a compressor stop mode, and control mode storage means for storing a control mode immediately before changing to the compressor stop mode when a signal from the compressor stop determination means is the compressor stop mode. A timer means for outputting a signal for a predetermined time after the start of the compressor, based on a signal from the compressor start determination means, and a signal output from the timer means, based on the control mode storage means. A differential pressure judging means for judging which of the first refrigerant throttling device and the second refrigerant throttling device has a differential pressure, and the first refrigerant throttling device based on a signal from the differential pressure judging device. Or said second refrigerant throttle device according to claim 1 for use in electric vehicle heat pump air conditioning dehumidification control device according equipped a pressure equalization control means for controlling the pressure equalization of.
の信号に基づき、電動圧縮機の起動開始を判定する圧縮
機起動判定手段と、前記制御モード設定手段からの信号
に基づき、前記電動圧縮機の停止モードを判定する圧縮
機停止判定手段と、前記圧縮機停止判定手段からの信号
が圧縮機停止モードである時、圧縮機停止モードに変更
直前の制御モードを記憶する制御モード記憶手段と、前
記圧縮機起動判定手段からの信号に基づき、圧縮機の起
動開始後、所定時間信号を出力するタイマー手段と、前
記タイマー手段からの信号が出力している時、前記制御
モード記憶手段に基づき、第１の冷媒絞り装置と第１の
電磁開閉弁のどちらに差圧があるかを判定する差圧判定
手段と、前記差圧判定手段からの信号に基づき、第１の
冷媒絞り装置もしくは第１の電磁開閉弁を均圧状態に制
御を行う均圧制御手段とを具備した請求項２記載の電気
自動車用ヒートポンプ冷暖房除湿制御装置。4. An air-conditioning control means, comprising: a compressor start-judgment means for judging start-up of an electric compressor based on a signal from a control mode setting means; and the electric compression control means based on a signal from the control mode setting means. Compressor stop determination means for determining a compressor stop mode, and control mode storage means for storing a control mode immediately before changing to the compressor stop mode when a signal from the compressor stop determination means is the compressor stop mode. A timer means for outputting a signal for a predetermined time after the start of the compressor, based on a signal from the compressor start determination means, and a signal output from the timer means, based on the control mode storage means. A differential pressure determining means for determining which of the first refrigerant throttle device and the first solenoid on-off valve has a differential pressure; and a first refrigerant throttle device based on a signal from the differential pressure determining device. The first electromagnetic valve electric vehicle heat pump air conditioning dehumidification control device according to claim 2 which comprises a pressure equalization control means for controlling the pressure equalization of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02190095A JP3246249B2 (en) | 1995-02-09 | 1995-02-09 | Heat pump cooling / heating dehumidification control device for electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02190095A JP3246249B2 (en) | 1995-02-09 | 1995-02-09 | Heat pump cooling / heating dehumidification control device for electric vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08216664A JPH08216664A (en) | 1996-08-27 |
| JP3246249B2 true JP3246249B2 (en) | 2002-01-15 |
Family
ID=12067989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02190095A Expired - Fee Related JP3246249B2 (en) | 1995-02-09 | 1995-02-09 | Heat pump cooling / heating dehumidification control device for electric vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3246249B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3830239B2 (en) * | 1997-09-29 | 2006-10-04 | カルソニックカンセイ株式会社 | Air conditioner for vehicles |
| EP2962878B1 (en) * | 2013-03-29 | 2017-10-25 | Japan Climate Systems Corporation | Vehicle air conditioner |
| JP6853036B2 (en) * | 2016-12-27 | 2021-03-31 | サンデン・オートモーティブクライメイトシステム株式会社 | Vehicle air conditioner |
| JP6854668B2 (en) * | 2017-02-28 | 2021-04-07 | サンデン・オートモーティブクライメイトシステム株式会社 | Vehicle air conditioner |
-
1995
- 1995-02-09 JP JP02190095A patent/JP3246249B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08216664A (en) | 1996-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107709067B (en) | Air conditioner for vehicle | |
| JPH09142139A (en) | Air-conditioning device for vehicle | |
| JPH08238919A (en) | Air conditioner for electric automobile | |
| JP3246250B2 (en) | Heat pump air conditioner dehumidifier for electric vehicles | |
| JPH07164867A (en) | Control device of air conditioner for electric vehicle | |
| JPH0842938A (en) | Dehumidifying device and method of air conditioner | |
| JP2011005980A (en) | Air conditioner for vehicle | |
| JP2013154749A (en) | Vehicle air conditioner | |
| JP3275410B2 (en) | Heat pump type air conditioner for vehicles | |
| JP3246249B2 (en) | Heat pump cooling / heating dehumidification control device for electric vehicles | |
| JP3279104B2 (en) | Heat pump cooling / heating dehumidification control device for electric vehicles | |
| JP4196681B2 (en) | Refrigeration cycle controller | |
| JP2011020478A (en) | Air conditioner for vehicle | |
| JP2006177599A (en) | Air conditioner | |
| JP2005262958A (en) | Vehicular air-conditioner | |
| JP3232183B2 (en) | Vehicle air conditioner | |
| JPH0891042A (en) | Heat pump type air-conditioning cooling and heating equipment | |
| JP5472412B2 (en) | Air conditioner for vehicles | |
| JP3246290B2 (en) | Air conditioning controller for electric vehicles | |
| JP3271423B2 (en) | Heat pump air conditioner dehumidifier for electric vehicles | |
| JP2684668B2 (en) | Vehicle air conditioner | |
| JP2000055484A (en) | Air conditioner | |
| JP3271347B2 (en) | Heat pump type air conditioner for vehicles | |
| JP3198623B2 (en) | Air conditioner | |
| WO2023002993A1 (en) | Vehicular air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071102 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081102 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091102 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091102 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101102 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111102 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |