JP3304553B2 - Control drive of electric compressor for automobile - Google Patents
Control drive of electric compressor for automobileInfo
- Publication number
- JP3304553B2 JP3304553B2 JP25815293A JP25815293A JP3304553B2 JP 3304553 B2 JP3304553 B2 JP 3304553B2 JP 25815293 A JP25815293 A JP 25815293A JP 25815293 A JP25815293 A JP 25815293A JP 3304553 B2 JP3304553 B2 JP 3304553B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- load
- electric compressor
- battery
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Ac Motors In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電動圧縮機を用いた自動
車用空調装置の制御駆動装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control and driving device for an air conditioner for a vehicle using an electric compressor.
【０００２】[0002]
【従来の技術】一般にインバータ制御の電動圧縮機の制
御駆動装置は主にルームエアコンに用いられているが、
ルームエアコンの電源である商用電源は、電圧変動幅が
１００Ｖ系で±５％程度、２００Ｖ系で±１０％程度で
あり非常に安定した電源となっている。従ってルームエ
アコン用の電動圧縮機の制御駆動においては、特に電源
変動に対して考慮する必要がなかった。周波数変化速度
についても特に電源変動用に設定する必要がなかった。2. Description of the Related Art In general, a control drive device of an inverter-controlled electric compressor is mainly used for a room air conditioner.
A commercial power supply, which is a power supply for a room air conditioner, has a voltage fluctuation range of about ± 5% for a 100 V system and about ± 10% for a 200 V system, and is a very stable power supply. Therefore, in the control drive of the electric compressor for the room air conditioner, there is no need to particularly consider the power supply fluctuation. It was not necessary to set the frequency change speed especially for power supply fluctuation.
【０００３】また近年、電気自動車用の一部の自動車
に、電動圧縮機を用いたカーエアコンが搭載されている
が、走行系と空調用の電源が同一のバッテリーから供給
しているので特に電源変動や優先順位を考慮したものが
なかった。In recent years, some automobiles for electric vehicles have been equipped with a car air conditioner using an electric compressor. In particular, since the power supply for the traveling system and the power for the air conditioning is supplied from the same battery, the power supply is particularly difficult. There was no change or priority.
【０００４】[0004]
【発明が解決しようとする課題】しかし前述した商用電
源とは異なり自動車用の電源は、非常に不安定で大きな
電源変動が急激かつ頻繁に起こる。例えばバッテリーを
電動圧縮機の電源とする電気自動車の場合には、図２
（ａ）、（ｄ）に示すように、車が加速した時には電源
電圧が低下し、また車が減速した時には電源電圧が上昇
する。そしてその変動幅は一般に±３０％以上と大きな
ものになっており、その変動が数百（ｍＳ）から（Ｓ）
程度の時間で発生する。However, unlike the commercial power supply described above, the power supply for automobiles is very unstable, and large and large fluctuations in the power supply occur rapidly and frequently. For example, in the case of an electric vehicle using a battery as a power source of the electric compressor, FIG.
As shown in (a) and (d), when the vehicle accelerates, the power supply voltage decreases, and when the vehicle decelerates, the power supply voltage increases. The fluctuation range is generally as large as ± 30% or more, and the fluctuation ranges from several hundreds (mS) to (S).
Occurs in about a minute.
【０００５】従って電動圧縮機がインバータの電流容量
に対しあまり余裕のないような負荷で駆動している時に
電源電圧が低下した場合には、電流が増加するので周波
数を制限して電流を抑えないと過電流保護が働き電動圧
縮機が停止するという課題がある。Therefore, if the power supply voltage drops when the electric compressor is driven with a load that does not have a sufficient margin for the current capacity of the inverter, the current increases, so that the frequency is limited and the current is not suppressed. Then, there is a problem that the overcurrent protection works and the electric compressor stops.
【０００６】また電気自動車では、運転者が車を加速す
るためアクセルを踏み込むと通常バッテリーの電源容量
が多い時は、アクセルの踏み込み量に応じ走行用モータ
は回転数を制御するが、バッテリーの電源容量が少なく
空調の負荷が大きい環境条件のもとでは走行モータの回
転数を上昇する過程でバッテリーの電源電圧が低下し加
速できないことや、空調系と走行系の電源はバッテリー
を共用しており、どちらを優先するか決まっておらず、
空調負荷が多い時は、緊急時にアクセルを踏んでも走行
加速できないという課題がある。In an electric vehicle, when the driver steps on the accelerator to accelerate the vehicle, the driving motor controls the number of revolutions in accordance with the amount of depression of the accelerator when the power capacity of the battery is large. Under environmental conditions where the capacity is small and the load of air conditioning is large, the power supply voltage of the battery decreases during the process of increasing the rotation speed of the traveling motor and acceleration cannot be performed, and the power supply for the air conditioning system and the traveling system share the battery. , Which one to prioritize,
When the air-conditioning load is large, there is a problem that traveling cannot be accelerated even if the accelerator is depressed in an emergency.
【０００７】[0007]
【課題を解決するための手段】本発明は第１の手段とし
て走行用駆動モータと、バッテリーと誘導モータを内蔵
し空調用の冷媒を圧縮する電動圧縮機と、前記バッテリ
ーからの直流電圧を可変周波数の交流電圧に変換して前
記電動圧縮機を制御駆動するインバータと車室内外の環
境条件に応じて前記電動圧縮機に印可する周波数を決定
しそれを設定周波数として、前記インバータに出力する
空調制御部を具備し、走行用駆動モータの負荷が設定値
を越えた時に電動圧縮機の周波数を降下させるために負
荷検出装置を備えた。According to the present invention, there is provided, as a first means, a drive motor for driving, an electric compressor having a built-in battery and an induction motor for compressing a refrigerant for air conditioning, and a variable DC voltage from the battery. An inverter that converts the frequency into an AC voltage to control and drive the electric compressor, and an air conditioner that determines a frequency to be applied to the electric compressor in accordance with environmental conditions inside and outside the vehicle compartment and outputs the frequency as a set frequency to the inverter. A control unit is provided, and a load detecting device is provided for lowering the frequency of the electric compressor when the load of the drive motor for traveling exceeds a set value.
【０００８】本発明は第２の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定しそれを設定周波
数として、前記インバータに出力する空調制御部を具備
し、走行用駆動モータの負荷を検出する負荷検出装置を
備え、負荷が設定値を越えた時、負荷状態により周波数
を下降速度を調整する周波数低下装置を設けた。According to the present invention, as a second means, a driving motor for driving, an electric compressor incorporating a battery and an induction motor for compressing a refrigerant for air conditioning, and converting a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle interior, sets it as a set frequency, and outputs the frequency to the inverter, A load detecting device for detecting the load of the drive motor for traveling is provided, and when the load exceeds a set value, a frequency lowering device is provided which adjusts a frequency to decrease a frequency according to a load condition.
【０００９】本発明は第３の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の変化量を検出して設定
値を越えた時、空調の電動圧縮機の周波数を設定値まで
下降させバッテリーの負荷率を抑え、走行用駆動モータ
を優先させる加速度検出装置を設けた。According to a third aspect of the present invention, there is provided an electric compressor which includes a driving motor for driving, a battery and an induction motor for compressing an air-conditioning refrigerant, and converts a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, An acceleration detection device that detects the amount of change in the signal from the accelerator pedal and exceeds the set value, lowers the frequency of the electric compressor for air conditioning to the set value, suppresses the load factor of the battery, and gives priority to the drive motor for traveling Provided.
【００１０】本発明は第４の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の変化量を検出する加速
度検出装置と走行用駆動モータの負荷を検出する負荷検
出装置を設けた。According to a fourth aspect of the present invention, there is provided a drive motor for traveling, an electric compressor having a built-in battery and an induction motor for compressing an air-conditioning refrigerant, and converting a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, An acceleration detecting device for detecting a change amount of a signal from an accelerator pedal and a load detecting device for detecting a load of a driving motor for traveling are provided.
【００１１】本発明は第５の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の変化量を検出する加速
度検出装置と走行用駆動モータの負荷を検出する負荷検
出装置と負荷状態により周波数を下降速度を調整する周
波数低下装置を設けた。According to a fifth aspect of the present invention, there is provided a driving motor for driving, an electric compressor incorporating a battery and an induction motor for compressing an air conditioning refrigerant, and converting a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, An acceleration detecting device for detecting the amount of change in the signal from the accelerator pedal, a load detecting device for detecting the load of the driving motor for driving, and a frequency lowering device for adjusting the speed of decreasing the frequency according to the load state are provided.
【００１２】[0012]
【作用】本発明の第１の手段によれば、走行モータの負
荷率を検出することでバッテリー電圧が低下する前に空
調用電動圧縮機の周波数を設定値まで降下させているの
で、走行駆動モータを優先にバッテリーの電源容量を使
用でき、車両の走行性能の向上と電源電圧低下による過
電流保護の作動により電動圧縮機が停止するのを防止す
ることができる。According to the first means of the present invention, the frequency of the air-conditioning electric compressor is reduced to the set value before the battery voltage is reduced by detecting the load factor of the traveling motor. The power capacity of the battery can be used by giving priority to the motor, and the stoppage of the electric compressor can be prevented by the improvement of the running performance of the vehicle and the operation of the overcurrent protection due to the drop in the power supply voltage.
【００１３】本発明の第２の手段によれば、走行モータ
の負荷率を検出し、さらにその負荷の状態により空調用
の電動圧縮機の周波数下降速度を調整する周波数低下装
置を設けることでバッテリーの容量が少なく電源電圧の
低下が速い時でも電源電圧低下による電流の増加速度よ
りも電動圧縮機の周波数下降による電流の制限速度が速
くなり、走行駆動モータを優先にバッテリーの電源容量
を使用でき車両の走行性能の向上と電源電圧低下による
過電流保護の作動により電動圧縮機が停止するのを防止
することができる。According to a second aspect of the present invention, a battery is provided by detecting a load factor of a traveling motor and further providing a frequency lowering device for adjusting a frequency lowering speed of an electric compressor for air conditioning according to the state of the load. Even when the capacity of the power supply voltage is low and the power supply voltage drops rapidly, the current limit speed due to the frequency decrease of the electric compressor is faster than the current increase speed due to the power supply voltage drop, and the power capacity of the battery can be used with priority on the traveling drive motor. It is possible to prevent the electric compressor from stopping due to the improvement of the running performance of the vehicle and the operation of the overcurrent protection due to the decrease in the power supply voltage.
【００１４】本発明は第３の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の変化量を検出して設定
値を越えた時、空調用の電動圧縮機の周波数を設定値ま
で下降させバッテリーの負荷率を抑え、走行用駆動モー
タを優先にバッテリーの電源容量を使用でき、車両の走
行性能の向上と電源電圧低下による過電流保護の作動に
より電動圧縮機が停止するのを防止することができる。According to a third aspect of the present invention, there is provided an electric compressor which includes a driving motor for driving, a battery and an induction motor for compressing an air-conditioning refrigerant, and converts a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, When the amount of change in the signal from the accelerator pedal is detected and the set value is exceeded, the frequency of the air-conditioning electric compressor is reduced to the set value to reduce the load factor of the battery, and the driving power for the driving motor is given priority. The capacity can be used, and it is possible to prevent the electric compressor from stopping due to the improvement of the running performance of the vehicle and the operation of the overcurrent protection due to the decrease in the power supply voltage.
【００１５】本発明は第４の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の変化量を検出する加速
度検出装置と走行用駆動モータの負荷を検出する負荷検
出装置を設け、各検出装置からのデータを演算した結果
設定値を越えた時、空調用の電動圧縮機の周波数を設定
値まで下降させバッテリーの負荷率を抑え、走行用駆動
モータを優先にバッテリーの電源容量を使用でき、車両
の走行性能の向上と電源電圧低下による過電流保護の作
動により電動圧縮機が停止するのを防止することができ
る。According to a fourth aspect of the present invention, there is provided a driving motor for driving, an electric compressor having a built-in battery and an induction motor for compressing a refrigerant for air conditioning, and converting a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, An acceleration detection device that detects the amount of change in the signal from the accelerator pedal and a load detection device that detects the load on the drive motor for traveling are provided. The frequency of the electric compressor is lowered to the set value to reduce the load factor of the battery, and the power capacity of the battery can be used with priority on the driving motor for driving, improving the driving performance of the vehicle. Electric compressor by the operation of the overcurrent protection according to the supply voltage drop can be prevented from being stopped.
【００１６】本発明は第５の手段として走行用駆動モー
タと、バッテリーと誘導モータを内蔵し空調用の冷媒を
圧縮する電動圧縮機と、前記バッテリーからの直流電圧
を可変周波数の交流電圧に変換して前記電動圧縮機を制
御駆動するインバータと車室内外の環境条件に応じて前
記電動圧縮機に印可する周波数を決定し、それを設定周
波数として前記インバータに出力する空調制御部を具備
し、アクセルペダルからの信号の偏差と変化率を検出す
る加速度検出装置と、走行用駆動モータの負荷を検出す
る負荷検出装置と、走行モータの負荷率を検出しさらに
その負荷の状態により空調用の電動圧縮機の周波数下降
速度を調整する周波数低下装置を設け、バッテリーの容
量が少なく電源電圧の低下が速い時でも、演算した結
果、設定値を越えると空調用の電動圧縮機の周波数を演
算結果に比例させ下降させることで空調系でのバッテリ
ーの負荷率を抑え、走行用駆動モータが優先的にバッテ
リーの電源容量を使用でき、車両の走行性能の向上と電
源電圧低下による過電流保護の作動により電動圧縮機が
停止するのを防止することができる。According to a fifth aspect of the present invention, there is provided an electric compressor which includes a driving motor for driving, a battery and an induction motor and compresses a refrigerant for air conditioning, and converts a DC voltage from the battery into an AC voltage having a variable frequency. An inverter that controls and drives the electric compressor and an air-conditioning control unit that determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, An acceleration detection device that detects a deviation and a change rate of a signal from an accelerator pedal, a load detection device that detects a load of a driving motor for driving, and a load ratio of a driving motor, and further detects an electric power for air conditioning based on a state of the load. A frequency lowering device is provided to adjust the frequency of the compressor's frequency lowering. Even if the battery capacity is low and the power supply voltage drops rapidly, the calculated value will exceed the set value. By lowering the frequency of the air-conditioning electric compressor in proportion to the calculation result, the load factor of the battery in the air-conditioning system is suppressed, and the driving motor for driving can use the power capacity of the battery preferentially. It is possible to prevent the electric compressor from stopping due to the operation of the overcurrent protection due to the improvement and the power supply voltage drop.
【００１７】[0017]
【実施例】本発明の一実施例の自動車用電動圧縮機の制
御駆動装置について図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
【００１８】図１は、本発明に一実施例の自動車用電動
圧縮機の制御駆動装置の構成ブロック図である。電動圧
縮機１は電気自動車の場合にはバッテリー２を電源とし
インバータ７によって制御駆動されている。空調制御部
５は各種センサー６や室温設定器４からの信号に基づい
て車室内を快適にするための設定周波数を決定してイン
バータ７に出力し、これを受けたインバータ７は通常は
この設定周波数で電動圧縮機１を駆動するようにスイッ
チング素子群１０をスイッチングして直流電圧を可変電
圧可変周波数の交流電圧に変換している。走行駆動モー
タ９はバッテリー２を電源として走行用インバータ６に
よって制御駆動されている。負荷検出装置６は走行駆動
モータの負荷の状態を検出し、インバータ７は負荷検出
装置からの信号と、空調制御部３からの設定周波数の信
号を受けそれらの入力に基づいて空調用の負荷と走行用
の負荷の和が設定値を越えた時電動圧縮機１の周波数を
所定値に低下させバッテリー２の負荷を軽減することで
バッテリー電圧の低下を軽減して走行用駆動モータ９を
優先する。FIG. 1 is a block diagram showing the configuration of a control and drive device for an electric compressor for a vehicle according to an embodiment of the present invention. The electric compressor 1 is controlled and driven by an inverter 7 using a battery 2 as a power source in the case of an electric vehicle. The air-conditioning control unit 5 determines a set frequency for making the passenger compartment comfortable based on signals from the various sensors 6 and the room temperature setting unit 4 and outputs the determined frequency to the inverter 7. The switching element group 10 is switched so as to drive the electric compressor 1 at a frequency to convert a DC voltage into an AC voltage having a variable voltage and a variable frequency. The traveling drive motor 9 is controlled and driven by the traveling inverter 6 using the battery 2 as a power supply. The load detecting device 6 detects the state of the load of the traveling drive motor, and the inverter 7 receives the signal from the load detecting device and the signal of the set frequency from the air-conditioning control unit 3 and determines the air-conditioning load based on those inputs. When the sum of the running loads exceeds a set value, the frequency of the electric compressor 1 is reduced to a predetermined value to reduce the load on the battery 2 so that the battery voltage is reduced and the driving motor 9 is prioritized. .
【００１９】また周波数低減装置１１は負荷検出装置６
からの信号と空調制御からの信号を受け、それらの入力
に基づいて空調用の負荷と走行用の負荷の和が設定値を
越えた時、周波数低下速度を２０Ｈｚ／ｓに選択して電
動圧縮機１の周波数を下降させる。またそれ以外の場合
で設定周波数が変化した時は、周波数変化速度を５Ｈｚ
／ｓを選択して電動圧縮機１の周波数を変化させる。The frequency reduction device 11 is a load detection device 6
When the sum of the load for air conditioning and the load for traveling exceeds the set value based on those inputs, the frequency reduction speed is selected as 20 Hz / s and the electric compression is performed. The frequency of the machine 1 is decreased. In other cases, when the set frequency changes, the frequency change speed is 5 Hz.
/ S is selected to change the frequency of the electric compressor 1.
【００２０】図２は電気自動車において本発明の一実施
例の制御駆動装置の作動図を示すタイミングチャートで
横軸は時間となっている。以下本発明の一実施例の制御
駆動装置の作動について図２を参照しながら説明する。
図２において時間０秒から１０秒までは車速が５０ｋｍ
／ｈ、圧縮機の負荷は９０％、走行駆動モータの負荷は
３０％、圧縮機の負荷も１００Ｈｚ一定でこの時バッテ
リー電圧は２４０Ｖで一定になっている。いま車が１０
秒後から加速し始め１７秒後までに１００ｋｍ／ｈにな
るまでに走行駆動モータの負荷率は１００％に達するが
走行モータの負荷と圧縮機の負荷を演算して所定値以上
になったため、圧縮機の周波数を１００Ｈｚから６０Ｈ
ｚに下降させてバッテリーの電圧低下を抑えることで走
行モータ系の負荷に余裕ができ、短い時間で加速するこ
とができる。FIG. 2 is a timing chart showing an operation diagram of the control driving device according to one embodiment of the present invention in the electric vehicle, and the horizontal axis represents time. Hereinafter, the operation of the control driving device according to one embodiment of the present invention will be described with reference to FIG.
In FIG. 2, the vehicle speed is 50 km from time 0 to 10 seconds.
/ H, the load on the compressor is 90%, the load on the traveling drive motor is 30%, the load on the compressor is also constant at 100 Hz, and the battery voltage is constant at 240 V at this time. 10 cars now
The load factor of the traveling drive motor reaches 100% by 100 seconds after 17 seconds from the start of acceleration until it reaches 100 km / h by 17 seconds. However, since the load of the traveling motor and the load of the compressor have been calculated, the load factor has exceeded a predetermined value. Compressor frequency from 100Hz to 60H
By lowering the voltage to z to suppress the voltage drop of the battery, the load on the traveling motor system can be spared and acceleration can be performed in a short time.
【００２１】もし走行モータの負荷が上昇し所定値以上
になった時、圧縮機の周波数を下降させなければバッテ
リーの負荷が増大し、走行モータへの電源の供給率が下
がり走行性能が低下するばかりか、空調用インバータで
もバッテリー電圧が低下して電流の増加が抑えられずに
過電流保護の作動により電動圧縮機を停止せざるを得な
くなる。If the load of the traveling motor rises and exceeds a predetermined value, the load on the battery increases unless the frequency of the compressor is decreased, so that the power supply rate to the traveling motor is reduced and the traveling performance is reduced. Not only that, even in an air conditioning inverter, the battery voltage drops and the increase in current cannot be suppressed, so that the electric compressor must be stopped by the operation of overcurrent protection.
【００２２】図４は所定トルクにおける電動圧縮機の運
転周波数と消費電力の関係を示した特性図であり、ほぼ
周波数に比例して消費電力が大きくなっている。FIG. 4 is a characteristic diagram showing a relationship between the operating frequency of the electric compressor and the power consumption at a predetermined torque, and the power consumption increases substantially in proportion to the frequency.
【００２３】表１は周波数範囲と周波数下降速度と潤滑
油の回収度合の定性的特性を示した特性表で、周波数下
降速度が大きくても高周波数側の領域においては潤滑油
の回収度合に悪影響は与えないことが分かる。Table 1 is a characteristic table showing qualitative characteristics of the frequency range, the frequency lowering speed, and the lubricating oil recovery degree. Even if the frequency lowering speed is large, the lubricating oil recovery degree is adversely affected in the high frequency region. Is not given.
【００２４】[0024]
【表１】 [Table 1]
【００２５】図３は、本発明に一実施例の自動車用電動
圧縮機の制御駆動装置の構成ブロック図である。電動圧
縮機１は電気自動車の場合にはバッテリー２を電源とし
インバータ７によって制御駆動されている。空調制御部
５は、各種センサー６や室温設定器４からの信号に基づ
いて、車室内を快適にするための設定周波数を決定して
インバータ７に出力し、これを受けたインバータ７は通
常はこの設定周波数で電動圧縮機１を駆動するようにス
イッチング素子群１０をスイッチングして直流電圧を可
変電圧可変周波数の交流電圧に変換している。走行駆動
モータ９はバッテリー２を電源としてアクセル１２から
の信号を受け、走行用インバータ８によって制御駆動さ
れている。FIG. 3 is a block diagram showing the configuration of a control and drive device for an electric compressor for a vehicle according to an embodiment of the present invention. The electric compressor 1 is controlled and driven by an inverter 7 using a battery 2 as a power source in the case of an electric vehicle. The air-conditioning control unit 5 determines a set frequency for making the vehicle interior comfortable based on signals from the various sensors 6 and the room temperature setting unit 4 and outputs the determined frequency to the inverter 7. The switching element group 10 is switched so as to drive the electric compressor 1 at the set frequency, and the DC voltage is converted into an AC voltage having a variable voltage and a variable frequency. The traveling drive motor 9 receives a signal from the accelerator 12 using the battery 2 as a power source, and is controlled and driven by the traveling inverter 8.
【００２６】負荷検出装置６は走行駆動モータの負荷の
状態を検出し、インバータ７は負荷検出装置からの信号
と、アクセル１２の踏み込んだ偏差と変化率を演算する
加速度検出装置１３からの信号と、空調制御部３からの
設定周波数の信号を受けそれらの入力に基づいて空調用
の負荷と、走行用の負荷の和と加速度検出装置１３から
のアクセルの偏差と変化率から加速途中の走行系の負荷
の状態を演算して、まず空調用電動圧縮機１の周波数を
走行系の負荷に応じバッテリー電圧が低下する前に降下
させ、走行系にバッテリーの電源を優先的に供給する。
加速終了して安定走行状態になった時に走行系の負荷は
低減しており電動圧縮機１の周波数を設定値に調整する
よう周波数を上昇させる。The load detecting device 6 detects the state of the load of the traveling drive motor, and the inverter 7 outputs a signal from the load detecting device and a signal from an acceleration detecting device 13 for calculating the deviation and the rate of change of the accelerator 12 depressed. The driving system which is in the middle of acceleration is determined by receiving signals of the set frequency from the air-conditioning control unit 3 and based on the inputs thereof, based on the sum of the air-conditioning load, the running load and the deviation and change rate of the accelerator from the acceleration detector 13. First, the frequency of the air-conditioning electric compressor 1 is reduced before the battery voltage decreases according to the load of the traveling system, and the power of the battery is supplied to the traveling system with priority.
When the acceleration is completed and the vehicle enters a stable traveling state, the load on the traveling system is reduced, and the frequency is increased so that the frequency of the electric compressor 1 is adjusted to the set value.
【００２７】また周波数低下装置を設けることで走行系
の負荷状態に比例させ空調系の電動圧縮機の周波数を降
下させることができる。Further, by providing the frequency reduction device, the frequency of the electric compressor of the air conditioning system can be reduced in proportion to the load state of the traveling system.
【００２８】図５は電気自動車において本発明の一実施
例の制御駆動装置の作動図を示すタイミングチャートで
横軸は時間となっている。以下本発明の一実施例の制御
駆動装置の作動について図５を参照しながら説明する。FIG. 5 is a timing chart showing an operation diagram of the control driving device according to one embodiment of the present invention in the electric vehicle, and the horizontal axis represents time. Hereinafter, the operation of the control driving device according to one embodiment of the present invention will be described with reference to FIG.
【００２９】図５において時間０秒から１０秒までは空
調用圧縮機の周波数は１２０Ｈｚで、圧縮機の負荷も１
００％で運転され、車速は５０ｋｍ／ｈで走行している
そこで１０秒後にアクセルが踏まれアクセル開度が大き
くなると、加速度検出装置からの信号を受け、空調用イ
ンバータは空調の負荷を軽減するため、圧縮機の周波数
を１２０Ｈｚから６０Ｈｚに降下させる。バッテリーの
負荷が軽減されると走行モータの負荷が上昇してもバッ
テリー電圧はあまり低下せず車速の指示どうり上昇して
ゆく、加速が１６秒後に終了すると走行モータの負荷は
低下することでバッテリー負荷も低下する、そこで空調
用インバータは圧縮機の周波数を上昇させ圧縮機の制御
を行う。図５の波線で書かれているのはアクセルが踏み
込まれ、走行モータの負荷が増大しても圧縮機の周波数
を下降させず１２０Ｈｚに維持すると、バッテリー負荷
が増大して電圧が降下するため走行系のインバータの保
護が働き、加速できない、または停止してしまう。空調
系についても同様で、バッテリー電圧が低下すると空調
用インバータの過電流保護が働き停止せざるを得なくな
る。In FIG. 5, from time 0 to 10 seconds, the frequency of the air conditioning compressor is 120 Hz, and the load of the compressor is also 1 unit.
When the vehicle is driven at 00% and the vehicle speed is 50 km / h, the accelerator is stepped on after 10 seconds and the accelerator opening increases, a signal is received from the acceleration detector, and the air conditioning inverter reduces the load on the air conditioning. Therefore, the frequency of the compressor is reduced from 120 Hz to 60 Hz. When the load on the battery is reduced, the battery voltage does not decrease so much even if the load on the traveling motor increases, and the vehicle speed increases as indicated by the vehicle speed. When the acceleration is completed after 16 seconds, the load on the traveling motor decreases. The battery load also decreases, so the air conditioning inverter increases the compressor frequency to control the compressor. The dashed line in FIG. 5 indicates that when the accelerator is depressed and the load on the traveling motor increases and the compressor frequency is maintained at 120 Hz without decreasing the frequency, the battery load increases and the voltage drops, so The protection of the inverter of the system works, and it cannot be accelerated or stops. The same applies to the air-conditioning system. When the battery voltage decreases, the overcurrent protection of the air-conditioning inverter must be activated and stopped.
【００３０】[0030]
【発明の効果】以上のように本発明の自動車用電動圧縮
機の駆動装置は、 （１）走行用駆動モータと、バッテリーと誘導モータを
内蔵し空調用の冷媒を圧縮する電動圧縮機と、前記バッ
テリーからの直流電圧を可変周波数の交流電圧に変換し
て前記電動圧縮機を制御駆動するインバータと車室内外
の環境条件に応じて前記電動圧縮機に印可する周波数を
決定し、それを設定周波数として前記インバータに出力
する空調制御部を具備し、走行用駆動モータの負荷を検
出する負荷検出装置を設け、走行モータの負荷率を検出
して空調用の電動圧縮機の周波数を設定値まで降下させ
ているので、走行駆動モータが優先にバッテリーの電源
容量を使用でき、車両の走行性能の向上と電源電圧低下
による過電流保護の作動により電動圧縮機が停止するの
を防止し、圧縮機の潤滑機構にも悪影響を及ぼさない。As described above, the driving apparatus for an electric compressor for an automobile according to the present invention comprises: (1) a driving motor for traveling, an electric compressor incorporating a battery and an induction motor and compressing a refrigerant for air conditioning; An inverter for controlling and driving the electric compressor by converting a DC voltage from the battery to an AC voltage of a variable frequency and a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle cabin are determined and set. An air-conditioning control unit that outputs the frequency to the inverter is provided, and a load detection device that detects a load of the driving motor for driving is provided, and a load factor of the driving motor is detected to set a frequency of the electric compressor for air conditioning to a set value. Because the motor is driven down, the driving motor can use the power capacity of the battery with priority, and the electric compressor stops due to the improvement of the running performance of the vehicle and the activation of the overcurrent protection due to the drop in the power supply voltage. And does not adversely affect the lubrication mechanism of the compressor.
【００３１】（２）走行用駆動モータと、バッテリーと
誘導モータを内蔵し空調用の冷媒を圧縮する電動圧縮機
と、前記バッテリーからの直流電圧を可変周波数の交流
電圧に変換して前記電動圧縮機を制御駆動するインバー
タと車室内外の環境条件に応じて前記電動圧縮機に印可
する周波数を決定しそれを設定周波数として、前記イン
バータに出力する空調制御部を具備し、走行用駆動モー
タの負荷を検出する負荷検出装置を備え、負荷が設定値
を越えた時、負荷状態により周波数を下降速度を調整す
る周波数低下装置を設けることで、バッテリーの容量が
少なく電源電圧の低下が速い時でも、電源電圧低下によ
る電流の増加速度よりも電動圧縮機の周波数下降による
電流の制限速度が速くなり、走行駆動モータを優先にバ
ッテリーの電源容量を使用でき、走行系の負荷状態によ
り電動圧縮機の下降速度を調整するため、さらに車両の
走行加速性能の向上と電源電圧低下による過電流保護の
作動により電動圧縮機が停止するのを防止し、圧縮機の
潤滑機構にも悪影響を及ぼさない。(2) A driving motor for driving, an electric compressor incorporating a battery and an induction motor for compressing the air-conditioning refrigerant, and converting the DC voltage from the battery into an AC voltage having a variable frequency to convert the electric compression. An inverter for controlling and driving the machine and an air conditioning control unit for determining a frequency to be applied to the electric compressor in accordance with environmental conditions inside and outside the vehicle and using the determined frequency as a set frequency, and outputting the frequency to the inverter. Equipped with a load detection device that detects the load, and when the load exceeds the set value, a frequency reduction device that adjusts the frequency to decrease the frequency according to the load condition is provided, even when the battery capacity is small and the power supply voltage drops quickly. Therefore, the current limiting speed due to the frequency decrease of the electric compressor is faster than the current increasing speed due to the decrease in the power supply voltage. It can be used to adjust the descent speed of the electric compressor according to the load condition of the traveling system, and to prevent the electric compressor from stopping due to the improvement of the vehicle acceleration performance and the operation of overcurrent protection due to the drop in power supply voltage. Also, it does not adversely affect the lubrication mechanism of the compressor.
【００３２】（３）走行用駆動モータと、バッテリーと
誘導モータを内蔵し空調用の冷媒を圧縮する電動圧縮機
と、前記バッテリーからの直流電圧を可変周波数の交流
電圧に変換して前記電動圧縮機を制御駆動するインバー
タと車室内外の環境条件に応じて前記電動圧縮機に印可
する周波数を決定し、それを設定周波数として前記イン
バータに出力する空調制御部を具備し、アクセルペダル
からの信号の変化量を検出する加速度検出装置を設け、
アクセルペダルからの信号の変化量を検出して設定値を
越えた時、まず走行駆動モータが加速してバッテリー負
荷増大によりバッテリー電圧が低下する前に、空調用の
電動圧縮機の周波数を設定値まで下降させることでバッ
テリーの負荷率を抑え、走行用駆動モータを優先にバッ
テリーの電源容量を使用でき、バッテリーの急激な負荷
が抑えられさらにバッテリーの急激な容量低下を防ぎ、
走行加速性能の再優先化ができ、電源電圧低下による過
電流保護の作動により、電動圧縮機が停止するのを防止
し、圧縮機の潤滑機構にも悪影響を及ぼさない。(3) A driving motor for driving, an electric compressor incorporating a battery and an induction motor for compressing the air-conditioning refrigerant, and converting the DC voltage from the battery into an AC voltage having a variable frequency to convert the electric compression. An air-conditioning control unit that determines the frequency to be applied to the electric compressor according to the inverter that controls and drives the motor and the environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, and a signal from an accelerator pedal. Provide an acceleration detection device that detects the amount of change in
When the amount of change in the signal from the accelerator pedal is detected and the set value is exceeded, the drive motor accelerates and the frequency of the air-conditioning electric compressor is set before the battery voltage drops due to an increase in battery load. By lowering the battery load factor, the driving power for the driving motor can be given priority and the power capacity of the battery can be used, the sudden load of the battery can be suppressed, and the sudden decrease in the capacity of the battery can be prevented.
The running acceleration performance can be prioritized, and the operation of the overcurrent protection due to the power supply voltage drop prevents the electric compressor from stopping, and does not adversely affect the lubrication mechanism of the compressor.
【００３３】（４）走行用駆動モータと、バッテリーと
誘導モータを内蔵し空調用の冷媒を圧縮する電動圧縮機
と、前記バッテリーからの直流電圧を可変周波数の交流
電圧に変換して前記電動圧縮機を制御駆動するインバー
タと車室内外の環境条件に応じて前記電動圧縮機に印可
する周波数を決定し、それを設定周波数として前記イン
バータに出力する空調制御部を具備し、アクセルペダル
からの信号の偏差と変化率を検出する加速度検出装置と
走行用駆動モータの負荷を検出する負荷検出装置を設
け、空調用の負荷と走行用の負荷の和と加速度検出装置
からのアクセルの偏差と変化率から加速途中の走行系の
負荷の状態を演算して、まず空調用電動圧縮機１の周波
数を走行系の負荷に応じバッテリー電圧が低下する前に
降下させ、走行系にバッテリーの電源を優先的に供給す
る。加速終了して安定走行状態になった時は走行系の負
荷は低減しており、電動圧縮機の周波数を設定値に調整
するため、バッテリー負荷の先読み制御ができ、より効
率良くバッテリーの急激な容量低下を防ぎ、さらに走行
加速性能の向上により車両としての安全性の確保がで
き、電源電圧低下による過電流保護の作動により電動圧
縮機が停止するのを防止し、圧縮機の潤滑機構にも悪影
響を及ぼさない。(4) A driving motor for driving, an electric compressor which incorporates a battery and an induction motor and compresses refrigerant for air conditioning, and converts the DC voltage from the battery into an AC voltage having a variable frequency to convert the electric compression. An air-conditioning control unit that determines the frequency to be applied to the electric compressor according to the inverter that controls and drives the motor and the environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, and a signal from an accelerator pedal. Acceleration detection device that detects the deviation and the rate of change of the load and the load detection device that detects the load of the drive motor for traveling are provided, and the sum of the load for the air conditioning and the load for the traveling and the deviation and the rate of change of the accelerator from the acceleration detection device First, the state of the load of the traveling system during acceleration is calculated, and the frequency of the air-conditioning electric compressor 1 is first reduced before the battery voltage decreases in accordance with the load of the traveling system. Preferentially supplies power Tteri. When the vehicle is in a stable running state after the acceleration is completed, the load on the running system is reduced, and the frequency of the electric compressor is adjusted to the set value. The capacity of the compressor is prevented, the safety of the vehicle is ensured by improving the running acceleration performance, the electric compressor is prevented from stopping by the operation of overcurrent protection due to the power supply voltage drop, and the lubrication mechanism of the compressor is also used. Has no adverse effect.
【００３４】（５）走行用駆動モータと、バッテリーと
誘導モータを内蔵し空調用の冷媒を圧縮する電動圧縮機
と、前記バッテリーからの直流電圧を可変周波数の交流
電圧に変換して前記電動圧縮機を制御駆動するインバー
タと車室内外の環境条件に応じて前記電動圧縮機に印可
する周波数を決定し、それを設定周波数として前記イン
バータに出力する空調制御部を具備し、アクセルペダル
からの信号の検出する加速度検出装置と走行用駆動モー
タの負荷を検出する負荷検出装置と周波数を急速に設定
に下げる周波数低下装置を設けたことで、バッテリーの
容量が少なく電源電圧の低下が速い時でも、電源電圧低
下による電流の増加速度よりも電動圧縮機の周波数下降
による電流の制限速度が速くなり、走行駆動モータを優
先にバッテリーの電源容量を使用でき、走行系の負荷状
態により電動圧縮機の下降速度を調整するため、さらに
車両の走行加速性能の向上と電源電圧低下による過電流
保護の作動により電動圧縮機が停止するのを防止し、圧
縮機の潤滑機構にも悪影響を及ぼさない。(5) A drive motor for traveling, an electric compressor which contains a battery and an induction motor and compresses refrigerant for air conditioning, and converts the DC voltage from the battery to an AC voltage having a variable frequency to convert the electric compression. An air-conditioning control unit that determines the frequency to be applied to the electric compressor according to the inverter that controls and drives the motor and the environmental conditions inside and outside the vehicle, and outputs the frequency to the inverter as a set frequency, and a signal from an accelerator pedal. By providing the acceleration detection device that detects the load, the load detection device that detects the load of the drive motor for driving, and the frequency reduction device that rapidly reduces the frequency to the setting, even when the battery capacity is small and the power supply voltage drops rapidly, The current limit speed due to the frequency decrease of the electric compressor becomes faster than the current increase speed due to the decrease in the power supply voltage, and the driving drive motor takes precedence and the battery In order to adjust the descending speed of the electric compressor according to the load condition of the traveling system, it is possible to use the power source capacity and further improve the traveling acceleration performance of the vehicle and to stop the electric compressor by stopping the overcurrent protection due to the drop in the power supply voltage It does not affect the lubrication mechanism of the compressor.
【図１】本発明の一実施例を示す構成図FIG. 1 is a configuration diagram showing one embodiment of the present invention.
【図２】本発明の一実施例の作動を示すタイミングチャ
ートFIG. 2 is a timing chart showing the operation of one embodiment of the present invention.
【図３】本発明の他の実施例を示す構成図FIG. 3 is a configuration diagram showing another embodiment of the present invention.
【図４】周波数と消費電力の関係を示した特性図FIG. 4 is a characteristic diagram showing a relationship between frequency and power consumption.
【図５】本発明の他の実施例の作動を示すタイミングチ
ャートFIG. 5 is a timing chart showing the operation of another embodiment of the present invention.
１ 圧縮機 ２ バッテリー ３ 空調制御部 ４ 室温設定器 ５ センサー ６ 負荷検出装置 ７ 空調用インバータ ８ 走行用インバータ ９ 走行用駆動モータ １０ スイッチング素子群 １１ 周波数低下装置 １２ アクセル １３ 加速度検出装置 DESCRIPTION OF SYMBOLS 1 Compressor 2 Battery 3 Air conditioning control part 4 Room temperature setting device 5 Sensor 6 Load detection device 7 Air conditioning inverter 8 Traveling inverter 9 Traveling drive motor 10 Switching element group 11 Frequency reduction device 12 Accelerator 13 Acceleration detection device
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B60L 1/00 H02P 7/63 302 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) B60L 1/00 H02P 7/63 302
Claims (2)
らの直流電圧を可変周波数の交流電圧に変換して空調用
電動圧縮機を制御駆動するインバータと、 車室内外の環境条件に応じて前記電動圧縮機に印可する
周波数を決定し、それを設定周波数として前記インバー
タに出力する空調制御部と、 走行用モータの負荷を検出する負荷検出装置と、 前記走行用モータの負荷が所定値を越えた時に前記電動
圧縮機の運転周波数を所定値まで下げる際の周波数変更
速度を通常運転時より早くする周波数低下装置を設けた
自動車用電動圧縮機の制御駆動装置。1. A battery as a power source of a traveling motor.
An inverter that converts the DC voltage into a variable frequency AC voltage to control and drive the air-conditioning electric compressor, and determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle cabin, and sets the frequency. and the air conditioning control unit to output to the inverter as a frequency, a load detector for detecting a load of the driving motor, the electric when the load of the traction motor exceeds a predetermined value
Frequency change when lowering the operating frequency of the compressor to a predetermined value
A control and drive device for an electric compressor for a vehicle , provided with a frequency reduction device for increasing the speed faster than in normal operation .
らの直流電圧を可変周波数の交流電圧に変換して空調用
電動圧縮機を制御駆動するインバータと、 車室内外の環境条件に応じて前記電動圧縮機に印可する
周波数を決定し、それを設定周波数として前記インバー
タに出力する空調制御部と、 走行用モータの負荷を検出する負荷検出装置と、 アクセルペダルからの信号の変化量を検出する加速度検
出装置と、 前記走行用モータの負荷と前記アクセルペダルからの信
号の変化量により走行系の負荷を演算し、前記走行系の
負荷が所定値を越えた時に前記電動圧縮機の運転周波数
を所定値まで下げる際の周波数変更速度を通常運転時よ
り早くする周波数低下装置を設けた 自動車用電動圧縮機
の制御駆動装置。2. A battery, which is a power supply for a traveling motor.
An inverter that converts the DC voltage into a variable frequency AC voltage to control and drive the air-conditioning electric compressor, and determines a frequency to be applied to the electric compressor according to environmental conditions inside and outside the vehicle cabin, and sets the frequency. wherein the air conditioning control unit to output to the inverter as a frequency, a load detector for detecting a load of the driving motor, an acceleration detecting device for detecting the variation of the signal from the accelerator pedal, a load of the traction motor accelerator Signal from pedal
The load of the traveling system is calculated from the amount of change in the
When the load exceeds a predetermined value, the operating frequency of the electric compressor
The frequency change speed when lowering the
A control and drive device for an electric compressor for vehicles equipped with a frequency reduction device that speeds up the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25815293A JP3304553B2 (en) | 1993-10-15 | 1993-10-15 | Control drive of electric compressor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25815293A JP3304553B2 (en) | 1993-10-15 | 1993-10-15 | Control drive of electric compressor for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07115702A JPH07115702A (en) | 1995-05-02 |
| JP3304553B2 true JP3304553B2 (en) | 2002-07-22 |
Family
ID=17316251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25815293A Expired - Fee Related JP3304553B2 (en) | 1993-10-15 | 1993-10-15 | Control drive of electric compressor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3304553B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369584A (en) * | 2001-06-06 | 2002-12-20 | Sanden Corp | Drive apparatus of motor-driven compressor for automotive air conditioner |
| JP3815419B2 (en) * | 2002-10-08 | 2006-08-30 | トヨタ自動車株式会社 | Control device and control method for hybrid vehicle |
| JP6640453B2 (en) * | 2015-02-24 | 2020-02-05 | 株式会社Ｓｕｂａｒｕ | Vehicle control device |
-
1993
- 1993-10-15 JP JP25815293A patent/JP3304553B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07115702A (en) | 1995-05-02 |
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