JP2889330B2 - Door control device for switching between inside and outside air of automotive air conditioner - Google Patents
Door control device for switching between inside and outside air of automotive air conditionerInfo
- Publication number
- JP2889330B2 JP2889330B2 JP2190448A JP19044890A JP2889330B2 JP 2889330 B2 JP2889330 B2 JP 2889330B2 JP 2190448 A JP2190448 A JP 2190448A JP 19044890 A JP19044890 A JP 19044890A JP 2889330 B2 JP2889330 B2 JP 2889330B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- air
- outside air
- switching door
- outside
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明に係る自動車用空調機の内外気切り換えドア
制御装置は、外気を取り入れる空調状態で走行中に、前
方を走行する別の車両のディーゼルエンジンから排出さ
れる排気が、車室内に進入するのを防止する為に利用す
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) An inside / outside air switching door control device for an automotive air conditioner according to the present invention is a diesel vehicle of another vehicle traveling ahead while traveling in an air-conditioning state that takes in outside air. It is used to prevent exhaust gas discharged from the engine from entering the passenger compartment.
（従来の技術） 自動車室内の冷暖房や除湿を行なう為の自動車用空調
機として、従来から各種構造のものが知られているが、
何れの場合も空調用の空気を流通させるダクトの内側に
エバポレータとヒータコアとを配置し、上記ダクトの上
流側端部に空気取り入れ口を、下流側端部に空気吹き出
し口を、それぞれ設けている。又、空気取り入れ口部分
には、車室内の空気を取り入れる為の内気取り入れ口
と、車室外の空気を取り入れる為の外気取り入れ口とを
設け、内外気切り換えドアによって、両取り入れ口の開
閉制御を行なう様にしている。(Prior Art) As a vehicle air conditioner for cooling / heating and dehumidifying a vehicle cabin, various types of air conditioners are conventionally known.
In each case, an evaporator and a heater core are arranged inside a duct for circulating air for air conditioning, and an air intake port is provided at an upstream end of the duct, and an air outlet is provided at a downstream end of the duct. . In addition, the air intake part is provided with an inside air intake for taking in air inside the vehicle interior and an outside air intake for taking in air outside the vehicle interior. I do it.
この様な内外気切り換えドアは、デフロスタモードの
場合に強制的に車室外の空気を取り入れる状態に切り換
える等、一部の例外を除き、運転者等が押ボタン等を操
作する事で切り換える様にしている。又、上記内外気切
り換えドアは、一般的には車室外の空気を取り入れる状
態となっている。With some exceptions, such as the inside / outside air switching door, for example, switching to a state in which air outside the cabin is taken in the defroster mode, the driver switches the door by operating a push button. ing. The inside / outside air switching door is generally in a state of taking in air outside the vehicle compartment.
ところが、前方を走行する別の車両がディーゼルエン
ジンを駆動源とする、所謂ディーゼル車であった場合、
上記内外気切り換えドアを、車室外の空気を取り入れる
状態のままとしておくと、車室内の空気が汚れてしま
う。即ち、現状に於いてはディーゼル車の排出ガス規制
はガソリン車の排出ガス規制に比べて緩く、ディーゼル
車が排出する排気中にはガソリン車が排出する排気に比
較して多くの有害成分が含まれており、臭も強い。この
為、ディーゼル車が排出する排気が車室内に進入した場
合、乗員に不快感を与えるばかりか、健康上も好ましく
ない。However, when another vehicle traveling ahead is a so-called diesel vehicle driven by a diesel engine,
If the inside / outside air switching door is kept in a state of taking in the air outside the vehicle compartment, the air inside the vehicle compartment becomes dirty. In other words, at present, the emission regulations of diesel vehicles are more strict than those of gasoline vehicles, and the exhaust emissions of diesel vehicles contain more harmful components than the exhaust emissions of gasoline vehicles. It has a strong smell. For this reason, when the exhaust gas emitted by the diesel vehicle enters the passenger compartment, it not only causes discomfort to the occupants, but is also undesirable in health.
そこでこの様な場合には、運転者等が押ボタン等を操
作する事で内外気切り換えドアを、車室内の空気を取り
入れる状態（内気循環モード）に切り換え、前方を走行
するディーゼル車の排気が車室内に進入しない様にする
が、操作が遅れがちで車室内への排気の進入を許す事が
多いばかりか、混雑した道での操作は安全運行上好まし
くない。更に、前方を走行していたディーゼル車がいな
くなった場合には、運転者等が、車室外の空気を取り入
れる状態に切り換える操作を行なわなければならない
が、この操作は面倒なばかりか忘れ易い。Therefore, in such a case, the driver or the like operates a push button or the like to switch the inside / outside air switching door to a state in which the air in the vehicle compartment is taken in (inside air circulation mode), and the exhaust of the diesel vehicle traveling ahead is exhausted. Although the vehicle is not allowed to enter the cabin, the operation tends to be delayed and the exhaust gas is often allowed to enter the cabin, and operation on a crowded road is not preferable for safe operation. Further, when the diesel vehicle running ahead disappears, the driver or the like must perform an operation of switching to a state of taking in air outside the vehicle compartment, but this operation is troublesome and easy to forget.
この様な事情を考慮して、内外気切り換えドアの切り
換えを自動的に行なう自動車用空調機の内外気切り換え
ドア制御装置として、特開昭60−100750号公報、同62−
292521号公報に記載された様なものがある。In consideration of such circumstances, as an inside / outside air switching door control device of an air conditioner for an automobile which automatically switches the inside / outside air switching door, Japanese Patent Application Laid-Open Nos.
There is the one described in Japanese Patent No. 292521.
これらの公報に記載された自動車用空調機の内外気切
り換えドア制御装置は、車室外の空気の状態を検出する
臭センサを設け、この臭センサが所定濃度以上の排気の
臭を検出した場合に上記内外気切り換えドアを内気取り
入れの状態に切り換える様に構成されている。The inside / outside air switching door control device of the automotive air conditioner described in these publications is provided with an odor sensor for detecting the state of the air outside the vehicle compartment, and when the odor sensor detects the odor of the exhaust gas having a predetermined concentration or more. The inside / outside air switching door is configured to switch to a state of taking in inside air.
（発明が解決しようとする課題） ところが、上記各公報に記載された自動車用空調機の
内外気切り換えドア制御装置に於いても、車室内の空気
が汚染される事を効果的に防止出来ない。(Problems to be Solved by the Invention) However, even in the inside / outside air switching door control device of the vehicle air conditioner described in each of the above publications, the contamination of the air in the vehicle compartment cannot be effectively prevented. .
即ち、車体の一部に設置した臭センサが排気の臭を検
出してから内外気切り換えドアの切り換えを行なったの
では、上記内外気切り換えドアが内気取り入れ状態に切
り換えられる以前に於いて、前方を走行する車両の排気
の一部が車室内に進入する事が避けられない。That is, if the odor sensor installed in a part of the vehicle body detects the odor of the exhaust and then switches the inside / outside air switching door, the inside / outside air switching door is switched to the inside air intake state before the door is switched to the inside air intake state. It is unavoidable that part of the exhaust gas of vehicles traveling in the vehicle enters the passenger compartment.
この様に、内外気切り換えドアが内気取り入れ状態に
切り換えられる以前に、車室内に進入した排気は、その
まま車室内に留まり、車室内の環境を汚染してしまう。As described above, before the inside / outside air switching door is switched to the inside air intake state, the exhaust gas that has entered the vehicle interior remains in the vehicle interior as it is, thus polluting the environment in the vehicle interior.
本発明の自動車用空調機の内外気切り換えドア制御装
置は、この様な事情に鑑みて発明されたもので、内外気
切り換えドアの切り換えを逸早く行なう事により、車室
内への排気の進入を確実に防止するものである。The inside / outside air switching door control device of the automotive air conditioner of the present invention has been invented in view of such circumstances, and by performing the switching of the inside / outside air switching door quickly, it is ensured that the exhaust gas enters the vehicle interior. It is to prevent.
（課題を解決する為の手段） 本発明の自動車用空調機の内外気切り換えドア制御装
置は、自動車用空調機のダクト内に車室内の空気を取り
入れるか、車室外の空気を取り入れるかを切り換える、
内外気切り換えドアを有する自動車用空調機の内外気切
り換えドアの制御装置である。(Means for Solving the Problems) The inside / outside air switching door control device for an air conditioner for a vehicle according to the present invention switches between taking air in the vehicle compartment and air outside the vehicle compartment into a duct of the air conditioner for a vehicle. ,
This is a control device for an inside / outside air switching door of an automotive air conditioner having an inside / outside air switching door.
この様な本発明の自動車用空調機の内外気切り換えド
ア制御装置は、第１〜２図に示す様に、車両１の前部に
設けられ、前方を走行する別の車両のエンジン音を検出
自在な音センサ２と、車両１の一部に設けられ、この車
両１付近に浮遊する排気の臭を検出自在な臭センサ３
と、この臭センサ３からの信号と上記音センサ２からの
信号とに基づいて上記内外気切り換えドア４を切り換え
る為のアクチュエータ５を制御する制御器６とから成
る。Such an inside / outside air switching door control apparatus for an air conditioner for a vehicle according to the present invention is provided at the front of the vehicle 1 and detects the engine sound of another vehicle traveling ahead as shown in FIGS. A flexible sound sensor 2 and an odor sensor 3 provided on a part of the vehicle 1 and capable of detecting the odor of exhaust gas floating near the vehicle 1
And a controller 6 for controlling an actuator 5 for switching the inside / outside air switching door 4 based on the signal from the odor sensor 3 and the signal from the sound sensor 2.
そしてこの制御器６は、上記内外気切り換えドア４が
車室外の空気を取り入れる状態にある場合で、上記音セ
ンサ２から送り込まれる信号に基づき、前方を走行する
別の車両がディーゼル車であると判断される場合に、上
記アクチュエータ５によって内外気切り換えドア４を内
気を取り入れる状態に切り換える。更に、制御器６はこ
の切り換え後、所定時間経過した後に上記臭センサ３が
所定濃度以上の排気の臭を検出した場合には、上記内外
気切り換えドア４をそのまま内気取り入れの状態に保持
し、上記所定時間後に上記臭センサ３が所定濃度以上の
排気の臭を検出しない場合には、上記アクチュエータ５
によって内外気切り換えドア４を、車室外の空気を取り
入れる状態に戻す様に機能する。The controller 6 determines that another vehicle traveling ahead is a diesel vehicle based on a signal sent from the sound sensor 2 when the inside / outside air switching door 4 takes in air outside the vehicle compartment. If determined, the actuator 5 switches the inside / outside air switching door 4 to a state in which inside air is taken in. Further, when the odor sensor 3 detects an odor of exhaust gas having a predetermined concentration or more after a lapse of a predetermined time after this switching, the controller 6 holds the inside / outside air switching door 4 in a state of taking in the inside air as it is, If the odor sensor 3 does not detect the odor of the exhaust gas having a predetermined concentration or more after the predetermined time, the actuator 5
Accordingly, the inside / outside air switching door 4 functions to return to a state in which air outside the vehicle compartment is taken in.
（作用） 上述の様に構成される本発明の自動車用空調機の内外
気切り換えドア制御装置は、第３図のフローチャートに
示された様に機能して、前方を走行するディーゼル車か
ら排出される排気が車室内に進入するのを確実に防止す
る。(Operation) The inside / outside air switching door control device of the automotive air conditioner of the present invention configured as described above functions as shown in the flowchart of FIG. 3 and is discharged from the diesel vehicle traveling ahead. Exhaust gas from entering the passenger compartment.
先ず、音センサ２が前方を走行する車両のエンジン音
を検出すると、制御器６に組み込まれた解析手段がこの
エンジン音を解析し、前方を走行する車両がディーゼル
車であるかガソリン車であるかを判断する。First, when the sound sensor 2 detects the engine sound of a vehicle traveling ahead, the analysis means incorporated in the controller 6 analyzes the engine sound, and the vehicle traveling ahead is a diesel vehicle or a gasoline vehicle. Judge.
この結果、前方を走行する車両がディーゼル車である
と判断された場合には、臭センサ３の検出結果に関係な
く、直ちにアクチュエータ５によって内外気切り換えド
ア４を内気を取り入れる状態に切り換える。As a result, when it is determined that the vehicle traveling ahead is a diesel vehicle, the inside / outside air switching door 4 is immediately switched to a state in which the inside air is taken in by the actuator 5 irrespective of the detection result of the odor sensor 3.
この様にして、内外気切り換えドア４を内気を取り入
れる状態に切り換えた後、制御器６に組み込まれたタイ
マーをスタートさせ、このタイマーに予めセットされた
所定時間後に、臭センサ３が検出する車両周囲の空気中
の臭から、車両の周囲に臭い排気が浮遊しているか否か
を判断する。In this way, after the inside / outside air switching door 4 is switched to a state of taking in inside air, a timer incorporated in the controller 6 is started, and after a predetermined time set in the timer, the vehicle detected by the odor sensor 3 is detected. From the odor in the surrounding air, it is determined whether or not odorous exhaust is floating around the vehicle.
この結果、臭センサ３が所定濃度以上の排気の臭を検
出した場合には、上記内外気切り換えドアをそのまま内
気取り入れの状態に保持し、車室内に臭い排気を含む外
気を取り入れない様にする。又、上記所定時間後に上記
臭センサ３が所定濃度以上の排気の臭を検出しない場合
には、上記アクチュエータ５によって内外気切り換えド
ア４を、車室外の空気を取り入れる状態に戻す。即ち、
前方にディーゼル車が走行していても、横風が強く臭い
排気が直ちに流失してしまう場合や、音センサ２が、側
方を走行するディーゼル車のエンジン音を検出した場
合、車室外の空気を取り入れても車室内を汚染する事は
ない為、一度内気取り入れ状態に切り換えた内外気切り
換えドア４を、車室外の空気を取り入れる状態に戻す。As a result, when the odor sensor 3 detects the odor of the exhaust gas having a predetermined concentration or more, the inside / outside air switching door is kept in the state of taking in the inside air, so that the outside air including the odor exhaust gas is not taken into the vehicle interior. . When the odor sensor 3 does not detect the odor of the exhaust gas having a concentration equal to or higher than the predetermined concentration after the predetermined time, the actuator 5 returns the inside / outside air switching door 4 to a state in which the air outside the vehicle compartment is taken in. That is,
Even if the diesel vehicle is traveling ahead, the crosswind is strong and the smelling exhaust gas immediately flows away, or if the sound sensor 2 detects the engine sound of the diesel vehicle traveling sideways, Even if the air is taken in, the inside of the vehicle interior is not polluted. Therefore, the inside / outside air switching door 4 which has been once switched to the inside air intake state is returned to the state in which the air outside the vehicle interior is taken in.
尚、前方を走行する車両がディーゼル車でないと判断
された場合には、直ちに臭センサ３からの信号を判断す
るステップに移り、臭センサ３が所定濃度以上の排気の
臭を検出した場合には、上記内外気切り換えドア４を内
気取り入れの状態に切り換え、車室内に臭い排気を含む
外気を取り入れない様にする。又、臭センサ３が所定濃
度以上の排気の臭を検出しない場合には、内外気切り換
えドア４を、車室外の空気を取り入れる状態のままとす
る。従って、トンネル内を走行する様な場合には、前方
をディーゼル車が走行していなくても、内外気切り換え
ドア４を内気を取り入れる状態に切り換え、車室内の空
気が汚れるのを最小限に抑える。If it is determined that the vehicle traveling ahead is not a diesel vehicle, the process immediately proceeds to the step of determining the signal from the odor sensor 3. If the odor sensor 3 detects the odor of the exhaust gas having a predetermined concentration or more, The inside / outside air switching door 4 is switched to a state of taking in inside air, so that outside air including odorous exhaust is not taken into the vehicle interior. When the odor sensor 3 does not detect the odor of the exhaust gas having a predetermined concentration or more, the inside / outside air switching door 4 is kept in a state in which the air outside the vehicle compartment is taken in. Therefore, when traveling in a tunnel, even if the diesel vehicle is not traveling ahead, the inside / outside air switching door 4 is switched to a state in which the inside air is taken in, thereby minimizing the contamination of the air in the passenger compartment. .
又、第３図のフローチャートに示す動作は繰り返し行
なわれる為、前方にディーゼル車がいなくなったり、周
囲に臭い排気が浮遊しない状態となった場合、内外気切
り換えドア４が自動的に外気を取り入れる状態に切り換
えられる。Since the operation shown in the flowchart of FIG. 3 is repeatedly performed, the inside / outside air switching door 4 automatically takes in the outside air when the diesel vehicle disappears in front or the odor exhaust does not float around. Is switched to.
（発明の効果） 本発明の自動車用空調機の内外気切り換えドア制御装
置は、以上に述べた通り構成され作用するが、内外気切
り換えドアの切り換えを自動的に、且つ逸早く行なう事
により、ディーゼル車から排出される臭い排気が車室内
に進入するのを確実に防止出来る為、車両の安全運行を
確保しつつ、車室内の環境を良好に保ち、乗員に不快感
を与えたり、或は乗員の健康を害する事を防止出来る。(Effect of the Invention) The inside / outside air switching door control device for an automotive air conditioner according to the present invention is configured and operates as described above. However, by automatically and quickly switching the inside / outside air switching door, the diesel engine can be used. Since it is possible to reliably prevent the odor exhaust emitted from the vehicle from entering the passenger compartment, it is possible to ensure the safe operation of the vehicle, maintain a good environment in the passenger compartment, and give the occupant discomfort or Can be prevented from harming their health.
第１図は本発明の自動車用空調機の内外気切り換えドア
制御装置のブロック図、第２図は車両への主要部品の設
置状態を示す側面図、第３図は作動状態を示すフローチ
ャートである。 1:車両、2:音センサ、3:臭センサ、4:内外気切り換えド
ア、5:アクチュエータ、6:制御器。FIG. 1 is a block diagram of an inside / outside air switching door control device for an air conditioner for a vehicle according to the present invention, FIG. 2 is a side view showing an installation state of main parts in a vehicle, and FIG. 3 is a flowchart showing an operation state. . 1: vehicle, 2: sound sensor, 3: odor sensor, 4: inside / outside air switching door, 5: actuator, 6: controller.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B60H 1/00 103 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) B60H 1/00 103
Claims (1)
を取り入れるか、車室外の空気を取り入れるかを切り換
える、内外気切り換えドアを有する自動車用空調機の内
外気切り換えドアの制御装置であって、車両の前部に設
けられ、前方を走行する別の車両のエンジン音を検出自
在な音センサと、車両の一部に設けられ、この車両付近
に浮遊する排気の臭を検出自在な臭センサと、この臭セ
ンサからの信号と上記音センサからの信号とに基づいて
上記内外気切り換えドアを切り換える為のアクチュエー
タを制御する制御器とから成り、この制御器は、上記内
外気切り換えドアが車室外の空気を取り入れる状態にあ
る場合で、上記音センサから送り込まれる信号に基づ
き、前方を走行する別の車両がディーゼル車であると判
断される場合に、上記内外気切り換えドアを内気を取り
入れる状態に切り換え、所定時間後に上記臭センサが所
定濃度以上の排気の臭を検出した場合に上記内外気切り
換えドアをそのまま内気取り入れの状態に保持し、上記
所定時間後に上記臭センサが所定濃度以上の排気の臭を
検出しない場合には上記内外気切り換えドアを車室外の
空気を取り入れる状態に戻す、自動車用空調機の内外気
切り換えドア制御装置。A control device for an inside / outside air switching door of an automotive air conditioner having an inside / outside air switching door for switching between taking in air in the vehicle compartment and taking in air outside the vehicle compartment into a duct of the air conditioner for the vehicle. There is a sound sensor provided at the front of the vehicle and capable of detecting the engine sound of another vehicle traveling ahead, and a sound sensor provided at a part of the vehicle and capable of detecting the odor of the exhaust floating near the vehicle. An odor sensor, and a controller for controlling an actuator for switching the inside / outside air switching door based on a signal from the odor sensor and a signal from the sound sensor, wherein the controller comprises the inside / outside air switching door. Is in a state of taking in air outside the vehicle compartment, and when it is determined that another vehicle traveling ahead is a diesel vehicle based on the signal sent from the sound sensor, The inside / outside air switching door is switched to a state of taking in inside air, and when the odor sensor detects the odor of the exhaust gas having a predetermined concentration or more after a predetermined time, the inside / outside air switching door is kept in the state of taking in the inside air, and after the predetermined time, An inside / outside air switching door control device for an air conditioner for an automobile, wherein the inside / outside air switching door is returned to a state in which air outside the vehicle compartment is taken in when the odor sensor does not detect an exhaust odor of a predetermined concentration or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2190448A JP2889330B2 (en) | 1990-07-20 | 1990-07-20 | Door control device for switching between inside and outside air of automotive air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2190448A JP2889330B2 (en) | 1990-07-20 | 1990-07-20 | Door control device for switching between inside and outside air of automotive air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0478712A JPH0478712A (en) | 1992-03-12 |
| JP2889330B2 true JP2889330B2 (en) | 1999-05-10 |
Family
ID=16258300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2190448A Expired - Lifetime JP2889330B2 (en) | 1990-07-20 | 1990-07-20 | Door control device for switching between inside and outside air of automotive air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2889330B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9931909B2 (en) * | 2016-07-13 | 2018-04-03 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automated control of vehicle ventilation system |
-
1990
- 1990-07-20 JP JP2190448A patent/JP2889330B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0478712A (en) | 1992-03-12 |
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