JPS5976414U - Control device for vehicle air conditioning compressor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案による車輌空調用コンプレッサの制御装
置の一実施例を示すブロック図、第２図は上記装置の要
部を示す回路図、第３図は本考案の他の実施例を示す回
路図である。 １・・・制御部、２・・・温度設定器、３，４・・・セ
ンサ、５・・・負圧検出器、６・・・コンプレッサ、７
・・・容量設定器、８・・・プーリ、９・・・電磁クラ
ッチ。Fig. 1 is a block diagram showing one embodiment of the control device for a vehicle air conditioning compressor according to the present invention, Fig. 2 is a circuit diagram showing the main parts of the above device, and Fig. 3 shows another embodiment of the present invention. It is a circuit diagram. DESCRIPTION OF SYMBOLS 1... Control part, 2... Temperature setting device, 3, 4... Sensor, 5... Negative pressure detector, 6... Compressor, 7
... Capacity setting device, 8... Pulley, 9... Electromagnetic clutch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内気センサで検出される車室内温度と温度設定器の設定
温度とを比較判定する第１判定手段と、エンジン負荷と
設定レベルとを比較判定する第２判定手段と、コンプレ
ッサの容量を設定するコンプレッサ容量設定手段と、上
記第１、第２判定手段からの出力信号に基づいて上記コ
ンプレッサ容量設定手段を制御する制御手段とから構成
し、上記制御手段は車室内温度が設定温度よりも低いと
きに上記コンプレッサ容量設定手段を制御してコンプレ
ッサの容量を小容量とし、かつ車室内温度が設定温度よ
り高いときでかつエンジン負荷が設定レベシレより大き
いときにコンプレッサ容量設定手段を制御してコンプレ
ッサの容量を小容量とし、車室内温度が設定温度より高
いときでかつエンジン負荷が設定レベルより小さいか、
またはほぼ等しい時に上記コンプレッサ容量設定手段を
制御してコンプレッサの容量を大容量に設定することを
特徴とする車輌空調用コンプレッサの制御装置。A first determining means for comparing and determining the vehicle interior temperature detected by the inside air sensor and a set temperature of the temperature setting device, a second determining means for comparing and determining the engine load and a set level, and a compressor for setting the capacity of the compressor. It is composed of a capacity setting means and a control means for controlling the compressor capacity setting means based on the output signals from the first and second determination means, and the control means controls the compressor capacity setting means when the vehicle interior temperature is lower than the set temperature. The compressor capacity setting means is controlled to reduce the capacity of the compressor, and when the vehicle interior temperature is higher than the set temperature and the engine load is higher than the set level, the compressor capacity setting means is controlled to reduce the compressor capacity. If the capacity is small, the temperature inside the vehicle is higher than the set temperature, and the engine load is lower than the set level,
A control device for a compressor for vehicle air conditioning, characterized in that the compressor capacity setting means is controlled to set the compressor capacity to a large capacity when the capacity is substantially equal to the capacity setting means.