JPH0462381U

JPH0462381U -

Info

Publication number: JPH0462381U
Application number: JP10414690U
Authority: JP
Priority date: 1990-10-03
Filing date: 1990-10-03
Publication date: 1992-05-28

Description

[Brief explanation of drawings]

第１図はこの考案の構成を示すブロツク図、第
２図はこの考案の実施例の説明図、第３図はマイ
クロコンピユータにおいて実行される制御のフロ
ーチヤート図、第４図は可変容量コンプレツサの
断面図、第５図は飽和圧力とトルクの関係を示す
グラフ図である。１……エンジン、２……電磁クラツチ、３……
容量可変装置、４……可変容量型コンプレツサ、
５……コンデンサ、６……リキツドタンク、７…
…エクスパンシヨンバルブ、８……空調ダクト、
９……エバポレータ、１０……空調装置。 Fig. 1 is a block diagram showing the configuration of this invention, Fig. 2 is an explanatory diagram of an embodiment of this invention, Fig. 3 is a flowchart of the control executed by a microcomputer, and Fig. 4 is a variable capacity compressor. The cross-sectional view and FIG. 5 are graphs showing the relationship between saturation pressure and torque. 1... Engine, 2... Electromagnetic clutch, 3...
Variable capacity device, 4... variable capacity compressor,
5... Capacitor, 6... Liquid tank, 7...
...Expansion valve, 8...Air conditioning duct,
9... Evaporator, 10... Air conditioner.

Claims

[Scope of Claim for Utility Model Registration] An engine whose rotational speed is controlled by an engine control means, a variable capacity compressor having a variable capacity device interlocked via an electromagnetic clutch, a capacitor, a liquid tank, and an expander. An air conditioning system for an automobile having a cooling cycle formed by sequentially connecting an air conditioning valve and an evaporator provided in an air conditioning duct in series, comprising: a condensing temperature detection means installed near an outlet of the condenser; saturation pressure calculation means for calculating the saturation pressure from the condensation temperature detected by the temperature detection means; rotation speed detection means for detecting the rotation speed of the compressor; compressor capacity detection means for detecting the capacity of the compressor; The torque of the compressor is calculated from the calculation result of the saturation pressure calculation means, the rotation speed of the compressor detected by the rotation speed detection means, and the compressor capacity detected by the compressor capacity detection means, A compressor torque detection device for an automobile air conditioner, characterized in that the engine control means is equipped with torque calculation means for outputting a compressor torque value as a torque signal.