JPH0290339U

JPH0290339U -

Info

Publication number: JPH0290339U
Application number: JP8802989U
Authority: JP
Priority date: 1988-09-21
Filing date: 1989-07-28
Publication date: 1990-07-18

Description

[Brief explanation of drawings]

第１図は、本考案に係るエンジン回転数制御装
置の構成を示すブロツク図、第２図は、本考案の
一実施例の装置構成を示すブロツク図、第３図は
、本考案の他の実施例の装置構成を示すブロツク
図、第４図は第１実施例の装置を自動車に適用し
た一例を示す全体概念図、第５図は第１実施例の
作動状態を示すフローチヤート、第６〜７図は第
２実施例の制御基準データを示すグラフ、第８図
は一般的なエンジン回転数制御装置を示す概念図
である。１……車速検出手段、２……スロツトルバルブ
開度検出手段、３……エンジン回転数検出手段、
４……自動車用空気調和装置本体、５……エアコ
ンスイツチ、６……冷房温度検出手段、７……コ
ントロールバルブ、８……アイドル回転数補正バ
ルブ、９……自動車用空気調和装置制御手段、１
０……エンジン制御手段、１１……吸入空気通路
、２５……アイドル検出手段、２６……コンプレ
ツサ作動検出手段、２７……コンプレツサ負荷検
出手段、２８……アイドル回転数補正手段、２９
……演算手段、３０……コントロールバルブ作動
検出手段、３１……外気温度検出手段、Ｅ……エ
ンジン、Ｔｖ……スロツトルバルブ。 FIG. 1 is a block diagram showing the configuration of an engine speed control device according to the present invention, FIG. 2 is a block diagram showing the device configuration of an embodiment of the present invention, and FIG. FIG. 4 is a block diagram showing the configuration of the device of the embodiment, FIG. 4 is an overall conceptual diagram showing an example of applying the device of the first embodiment to an automobile, FIG. 5 is a flowchart showing the operating state of the first embodiment, and FIG. 7 are graphs showing control reference data of the second embodiment, and FIG. 8 is a conceptual diagram showing a general engine speed control device. 1...Vehicle speed detection means, 2...Throttle valve opening detection means, 3...Engine rotation speed detection means,
4... Automotive air conditioner body, 5... Air conditioner switch, 6... Cooling temperature detection means, 7... Control valve, 8... Idle rotation speed correction valve, 9... Automotive air conditioner control means, 1
0... Engine control means, 11... Intake air passage, 25... Idle detection means, 26... Compressor operation detection means, 27... Compressor load detection means, 28... Idle rotation speed correction means, 29
...Calculating means, 30...Control valve operation detection means, 31...Outside temperature detection means, E...Engine, Tv...Throttle valve.

Claims

[Claims for Utility Model Registration] (1) A control valve 7 for controlling the refrigerant compression capacity of the cooling cycle 20 in an automobile having an engine E equipped with a throttle valve Tv for opening and closing the intake air passage 11 by the engine control means 10. a variable capacity compressor C connected to the rotating shaft of the engine E to compress the refrigerant of the cooling cycle 20; and an evaporator in which the refrigerant compressed by the variable capacity compressor C circulates and cools the intake air. 18, when the engine E is in an idling operating state and the variable capacity compressor C is in an operating state, the idling speed of the engine E is set to the engine no-load state. In an automobile engine speed control device that controls the engine speed to increase above the idle speed of the engine, the device includes an idle detection means 25 that detects the idle operating state of the engine E, and a compressor operating means that detects the operating state of the variable capacity compressor C. detection means 26 and the variable capacity compressor C
a compressor load detection means 27 for detecting the load state of the engine; an idle speed correction means 28 for increasing or decreasing the idle speed of the engine E; the engine E is in an idling state and the compressor C is in an operating state; An engine speed control device for an automobile, comprising: arithmetic means 29 for reducing the engine speed when it is detected that the compressor C is in a low load state. (2) The idle detection means 25 includes a vehicle speed detection means 1 that detects the running speed of the automobile, a throttle valve opening detection means 2 that detects the opening of the throttle valve Tv, and a rotation speed of the engine E. The compressor load detection means 27 includes a cooling temperature detection means 6 that detects the temperature of the cooling air that has passed through the evaporator 18, and an operating state of the control valve 7. and a control valve operation detection means 30 for detecting the rotational speed of an automobile engine according to claim (1), wherein the compressor operation detection means 26 and the calculation means 29 consist of an automobile air conditioner control means 9. Control device. (3) The idle detection means 25 includes a vehicle speed detection means 1 that detects the running speed of the automobile, a throttle valve opening detection means 2 that detects the opening of the throttle valve Tv, and a rotation speed of the engine E. The compressor load detection means 27 includes an outside air temperature detection means 3 that detects the temperature outside the vehicle.
1 and a control valve operation detection means 30 for detecting the operation state of the control valve 7, and the compressor operation detection means 26 and the calculation means 29 are comprised of an automobile air conditioner control means 9. An automobile engine speed control device according to claim (1). (4) The variable capacity compressor C is a variable capacity swash plate compressor equipped with an electronic control valve that controls the inclination angle of the drive swash plate based on input information based on the cooling cycle and the surrounding environment. The automobile engine speed control device according to 1) to (3).