JPS60121913U

JPS60121913U - Vehicle air conditioner control device

Info

Publication number: JPS60121913U
Application number: JP916684U
Authority: JP
Inventors: 飯村　純; 昭夫長谷川
Original assignee: 三菱重工業株式会社
Priority date: 1984-01-27
Filing date: 1984-01-27
Publication date: 1985-08-17
Also published as: JPS6239926Y2

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

[Brief explanation of drawings]

第１図は従来の車両用空調機のシステム構成例の説明図
、第２図は第１図のコントローラの構成例を示す回路図
、第３図は第１図に示す車両用空調機の制御ブロック図
、第４図は同制御系において設定温度に対するサーミス
タ部の変化状況を示す曲線図、第５図は本考案による車
両用空調機のシステムを説明するための一例を示す基本
構成図、第６図は第５図の制御系の詳細を示すブロック
図、第７図ａは同構成例において温度調整負荷指令と蒸
発器吹出し温度の関係を示す図、第７図すは同じく風量
との関係を示す図、第８図は２台の圧縮機を設けた冷凍
す、イクルを第６堺に示す制御系を利用して制御する場
合のブロック図、第９　　　“図は本考案の一実施例を
示す制御系のブロック図、第１０図は同実施例における
具体的構成例を示す回路図である。１・・・車両内空間、２．５０．５１・・・圧縮機、７
　　　　　′・・・蒸発器、１２・・・電磁クラッチ、
２３・・・車内温度、検知用サーミスタ、２４・・・外
気温度検知用サーミスタ、２５・・・蒸発器吹出し空気
温度検知用サージ、スダ、２７，５２・・・コントロー
ラ、２９．３０゜５３、５４．５５・・・比較演算器、
５６・・・パルス発生器。Ｖｉｎｓ　　　冷泰輌■　− 風１空気＝１ −　　　−Ｖｍｓ　　　泡ｉ青■ 臼１　土−１震一−°１．−１　責　− と−ニ北、ｌ′−ト−：−”、　− −ｔ！ｌ十＋”Figure 1 is an explanatory diagram of an example of the system configuration of a conventional vehicle air conditioner, Figure 2 is a circuit diagram showing an example of the configuration of the controller in Figure 1, and Figure 3 is a control of the vehicle air conditioner shown in Figure 1. FIG. 4 is a block diagram, and FIG. 4 is a curve diagram showing how the thermistor changes with respect to the set temperature in the control system. FIG. 5 is a basic configuration diagram showing an example of the vehicle air conditioner system according to the present invention. Figure 6 is a block diagram showing details of the control system in Figure 5, Figure 7a is a diagram showing the relationship between the temperature adjustment load command and the evaporator outlet temperature in the same configuration example, and Figure 7A is also a diagram showing the relationship with the air volume. Figure 8 is a block diagram of a refrigeration cycle equipped with two compressors using the control system shown in Figure 6. Figure 9 is an embodiment of the present invention. FIG. 10 is a circuit diagram showing a specific configuration example in the same embodiment. 1...Vehicle interior space, 2.50.51...Compressor, 7
'... Evaporator, 12... Electromagnetic clutch,
23... Vehicle interior temperature, thermistor for detection, 24... Thermistor for outside temperature detection, 25... Evaporator outlet air temperature detection surge, Suda, 27, 52... Controller, 29.30°53, 54.55... Comparison operator,
56...Pulse generator. Vins Cold Taisho ■ - Wind 1 Air = 1 - -Vms Foam i Blue ■ Mortar 1 Soil - 1 Earthquake - ° 1. -1 Responsibility - and -ni north, l'-to:-", - -t!l10+"

Claims

[Scope of utility model registration request]

In a vehicle air conditioner comprising two compressors and a steamer to form a refrigeration cycle, an indoor temperature sensor detects the temperature inside the vehicle interior, an outside temperature sensor detects the outside air temperature, and a temperature sensor inside the vehicle interior. A temperature setting device that sets the temperature, an evaporator outlet temperature sensor that detects the outlet temperature of the evaporator, and signals output from the indoor temperature sensor, the outdoor temperature sensor, and the temperature setting are multiplied by appropriate gains. a means for outputting the added value as a heat load command value; and a means for comparing the signal output from the heat load command value output means with the signal output from the evaporator outlet temperature sensor, and determining that the heat load is lower than a predetermined level. It is determined whether the heat load is large or small, and when the heat load is small, only one of the compressors is controlled on and off, and when the heat load is large, one of the compressors is continuously turned on, and the other It consists of means for controlling the evaporator outlet temperature by on-off control of the compressor, and means for changing the output directions of both the compressors controlled by the evaporator outlet temperature control means at regular intervals. A control device for a vehicle air conditioner, characterized by the following.