JPS62139710A - Controller for automobile heating apparatus - Google Patents

Controller for automobile heating apparatus

Info

Publication number
JPS62139710A
JPS62139710A JP60279945A JP27994585A JPS62139710A JP S62139710 A JPS62139710 A JP S62139710A JP 60279945 A JP60279945 A JP 60279945A JP 27994585 A JP27994585 A JP 27994585A JP S62139710 A JPS62139710 A JP S62139710A
Authority
JP
Japan
Prior art keywords
glow plug
ignition
turned
controller
fuel
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.)
Granted
Application number
JP60279945A
Other languages
Japanese (ja)
Other versions
JPH0617724B2 (en
Inventor
Hideo Kawamura
英男 河村
Keiichi Yamashita
山下 恵一
Yukio Yoshida
幸夫 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP60279945A priority Critical patent/JPH0617724B2/en
Publication of JPS62139710A publication Critical patent/JPS62139710A/en
Publication of JPH0617724B2 publication Critical patent/JPH0617724B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Combustion (AREA)
  • Spray-Type Burners (AREA)

Abstract

PURPOSE:To keep the heating temperature of each glow plug constant, by connecting each glow plug for carburetion and ignition of fuel to a power source in parallel when each heating temperature is less than the specified value but in series when it is more than the specified value, respectively. CONSTITUTION:Immediately after a start switch 12 is turned on, since each of glow plugs 14 and 15 for carburetion and ignition of fuel are not reached to the specified temperature, selector switchs 14 and 15 are turned on by a controller 17, and a selector switch 18 is turned off, respectively. With this control, each of these glow plugs 7 and 8 is connected to a power source 11 in parallel via each of resistors 16 and 13, whereby these glow plugs 7 and 8 are speedily heated. On the other hand, if these glow plugs 7 and 8 are reached to the specified temperature, these selector switches 14 and 15n are controlled to be turned off and the selector switch 18 to be turned on, respectively, by the controller 17, thus a circuit is selected to being in series.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、内燃機関の吸気管に設けた自動車用暖房装置
の制御装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a control device for a heating device for an automobile provided in an intake pipe of an internal combustion engine.

(従来の技術) 一般に広く用いられている自動車用暖房装置は、内燃機
関により加熱された冷却水をヒータコアに導き、プロワ
によって温風を自動車の室内に送風するものであった。
(Prior Art) A generally widely used heating device for an automobile introduces cooling water heated by an internal combustion engine to a heater core, and blows warm air into the interior of the automobile using a blower.

ところが、この方式による暖房装置では、内燃機関が充
分に暖かくなる迄は温風が送風されず、特に寒冷地にお
いては車室内においても防寒具を着用しなければならな
い等の問題があった。
However, with this type of heating system, hot air is not blown until the internal combustion engine becomes sufficiently warm, and there are problems such as the need to wear cold protection even inside the vehicle, especially in cold regions.

この問題を解決するため、冷却水から暖房用熱源を得る
従来の暖房装置とは別に、内燃機関の吸気管の中間部に
燃焼器と熱交換器とを設け、燃焼器により燃料を燃焼さ
せて生じた熱を熱交換器で回収して車室内に送風する方
式の急速暖房装置が開発されており、例えば本願出願人
による特願昭59−106869号明細占に開示された
ものがある。
To solve this problem, in addition to conventional heating systems that obtain a heating heat source from cooling water, a combustor and a heat exchanger are installed in the middle of the intake pipe of an internal combustion engine, and the combustor burns fuel. A rapid heating system has been developed in which the generated heat is recovered by a heat exchanger and then blown into the vehicle interior, such as one disclosed in Japanese Patent Application No. 106869/1983 filed by the applicant of the present application.

この急速暖房装置によれば、燃焼器には燃料を気化する
ための気化グロープラグと、気化した燃料に着火するた
めの着火グロープラグが設けられていて、内燃機関の始
動とほぼ同面に燃焼器から暖房用熱エネルギを得ること
ができるので上記問題点は解決される。
According to this rapid heating system, the combustor is equipped with a vaporizing glow plug for vaporizing fuel and an ignition glow plug for igniting the vaporized fuel, and the combustion occurs almost at the same time as the internal combustion engine starts. Since heat energy for heating can be obtained from the heater, the above problem is solved.

(発明が解決しようとする問題点) しかしながら、上記特願昭59−106869号明細書
に開示された急速暖房装置では、気化グロープラグおよ
び着火グロープラグの発熱温度を所定温度に維持するた
めの制御装置が、ブリッジ回路や比較器等からなる複雑
な構成となっている。
(Problems to be Solved by the Invention) However, in the rapid heating device disclosed in the above-mentioned Japanese Patent Application No. 59-106869, control is required to maintain the heat generation temperature of the vaporizing glow plug and the ignition glow plug at a predetermined temperature. The device has a complex configuration consisting of bridge circuits, comparators, etc.

従って本発明の目的は、気化グロープラグおよび着火グ
ロープラグの発熱温度をほぼ一定に維持するための簡単
な構成の制御装置を提供することである。
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a simple control device for maintaining the heat generation temperature of a vaporizing glow plug and an ignition glow plug substantially constant.

C問題点を解決するための手段) 本発明によれば、燃料を気化する気化グロープラグと気
化燃料に着火する着火プラグとを備えた燃焼器を有する
自動車用暖房装置の制御装置において、前記気化グロー
プラグおよび着火グロープラグは夫々の発熱温度が所定
温度以下にあるときは、電源に対して互いに並列に接続
し、所定温度になったときは電源に対して直列に接続す
る手段を備えた自動車用暖房装置の制御装置が提供され
る。
Means for Solving Problem C) According to the present invention, in the control device for a heating device for an automobile having a combustor including a vaporizing glow plug that vaporizes fuel and an ignition plug that ignites the vaporized fuel, Glow plugs and ignition glow plugs are connected to a power source in parallel when their respective heat generation temperatures are below a predetermined temperature, and are connected in series to a power source when the temperature reaches a predetermined temperature. A control device for a heating device is provided.

(作用) 気化グロープラグおよび着火グロープラグは正の温度係
数をもつ抵抗線で構成されていて、発熱温度の変化と共
に抵抗値も変化する。従って、両グロープラグのうちの
いずれか一方のグロープラグ(図示の実施例では着火グ
ロープラグ)に流れる電流値をコントローラでセンスし
、所定の発熱温度に対応する電流値にあるか否かによっ
て並列又は直列回路となるように切換スイッチを作動さ
せる。
(Function) The vaporizing glow plug and the ignition glow plug are composed of resistance wires with a positive temperature coefficient, and the resistance value changes as the heat generation temperature changes. Therefore, the controller senses the current value flowing through one of the two glow plugs (in the illustrated embodiment, the ignition glow plug), and depending on whether or not the current value corresponds to a predetermined heat generation temperature, the parallel Or operate the selector switch to create a series circuit.

(実施例) 第り図は、本発明の制御装置10(第2図)によって制
御される自動車用暖房装置の燃焼器lを主体として、そ
の概略的構成を示すものである。
(Example) Fig. 2 shows a schematic configuration mainly consisting of a combustor l of an automobile heating system controlled by the control device 10 (Fig. 2) of the present invention.

自動車用暖房装置は、前記燃焼器1と、熱交換器2とか
ら成る。燃焼器1および熱交換器2は、自動車の内燃機
関3の吸気管3aに設けられていて、燃焼器lはその上
流側に、熱交換器2は下流側に配置されている。番号4
はエアクリーナを示す。燃焼器1は燃焼室5を有し、該
燃焼室5内には、燃料供給口6aから供給される燃料を
気化させるための加熱装置6と、気化された燃料に着火
するための着火グロープラグ7とが延入している。加熱
装置6内に供給された燃料は、該加熱装置在6内に組み
込まれた気化グロープラグ8の周囲に導かれて気化され
る。気化された燃料は、エアクリーナ4の空気取入口4
aから取入られた空気と混合され1着火グロープラグ7
により着火されて、燃焼室5内で燃焼される。燃焼ガス
は熱交換器2内を通って流れ、内燃機関3の燃焼室内に
導かれる。一方、熱交換器2の空気取入口2aからは、
新鮮な大気が取入れられ、熱交換器内で燃焼ガスと熱交
換される。暖められた大気は、ブロワ9により自動車の
室内に送風される。この温風、従来の冷却水を利用した
暖房装置(図示せず)からの温風と共に車室内に送風さ
れるように構成してもよく、冷却水が一定以上の温度に
昇温した後は、燃焼器lでの燃焼を停止させてもよい。
The heating system for an automobile includes the combustor 1 and a heat exchanger 2. The combustor 1 and the heat exchanger 2 are provided in an intake pipe 3a of an internal combustion engine 3 of an automobile, with the combustor 1 being arranged on the upstream side and the heat exchanger 2 on the downstream side. number 4
indicates an air cleaner. The combustor 1 has a combustion chamber 5, and the combustion chamber 5 includes a heating device 6 for vaporizing fuel supplied from a fuel supply port 6a and an ignition glow plug for igniting the vaporized fuel. 7 has been extended. The fuel supplied into the heating device 6 is guided around the vaporizing glow plug 8 built into the heating device 6 and is vaporized. The vaporized fuel is transferred to the air intake port 4 of the air cleaner 4.
Mixed with the air taken in from a, the 1 ignition glow plug 7
The fuel is ignited and burned in the combustion chamber 5. The combustion gases flow through the heat exchanger 2 and are led into the combustion chamber of the internal combustion engine 3. On the other hand, from the air intake port 2a of the heat exchanger 2,
Fresh air is taken in and exchanged heat with the combustion gases in a heat exchanger. The warmed air is blown into the interior of the vehicle by the blower 9. This hot air may be configured to be blown into the vehicle interior together with warm air from a conventional heating device (not shown) that uses cooling water, and after the cooling water has risen to a certain temperature or higher, , combustion in the combustor l may be stopped.

次に、第2図に基き1本発明の自動車用暖房装置の制御
装置10について説明する。
Next, a control device 10 for a heating device for an automobile according to the present invention will be explained based on FIG.

電1rA(バッテリ)11には燃焼器1を作動させるた
めのスタートスイッチ12が接続されており、該スイッ
チ12には抵抗器13を介して気化グロープラグ8のプ
ラス側が接続されている。気化グロープラグ8は正の温
度係数をもつ抵抗線8aを有し、そのアース側は切換ス
イッチ14を介して着火グロープラグ7のアース側に接
続されている6着火グロープラグ7も、気化グロープラ
グ8と同様に正の温度係数をもつ抵抗線7aを有する。
A start switch 12 for operating the combustor 1 is connected to the power source 1rA (battery) 11, and the positive side of the vaporizing glow plug 8 is connected to the switch 12 via a resistor 13. The evaporative glow plug 8 has a resistance wire 8a with a positive temperature coefficient, and its ground side is connected to the ground side of the ignition glow plug 7 via a changeover switch 14.The ignition glow plug 7 is also a vaporization glow plug. 8, it has a resistance wire 7a having a positive temperature coefficient.

従って、両グロープラグ7.8は、温度上昇と共に夫々
の抵抗線7a、8aの抵抗値も増加する特性をもつ。
Therefore, both glow plugs 7.8 have a characteristic that the resistance values of the respective resistance wires 7a, 8a increase as the temperature rises.

スタートスイッチ12と抵抗器13との中間には、切換
スイッチ15が接続されており、該切換スイッチには抵
抗器16を介して着火グロープラグ7のプラス側が接続
されている。また、抵抗器16の両端には、コントロー
ラ17が接続されている。
A changeover switch 15 is connected between the start switch 12 and the resistor 13, and the positive side of the ignition glow plug 7 is connected to the changeover switch via a resistor 16. Further, a controller 17 is connected to both ends of the resistor 16.

更に、切換スイッチ15と抵抗器16との中間には切換
スイッチ18が接続されていて、該切換スイッチ18は
抵抗器19を介して気化グロープラグのアース側に接続
されている。
Further, a changeover switch 18 is connected between the changeover switch 15 and the resistor 16, and the changeover switch 18 is connected to the ground side of the vaporizing glow plug via a resistor 19.

次に、上記構成の本発明に係る制御装置10の作動につ
いて説明する。
Next, the operation of the control device 10 according to the present invention having the above configuration will be explained.

スタートスイッチ12をオンにした直後は未だ両グロー
プラグ7.8が所定の発熱温度(着火グロープラグ7は
約900’O,気化グロープラグ8は約500℃)にな
く、従って、両グロープラグの発熱温度を急速に所定の
発熱温度まで上昇させるべく1両グロープラグを電源1
1に対して並列に接続して充分な電力が供給されるよう
にする。
Immediately after turning on the start switch 12, both glow plugs 7.8 are not yet at the predetermined heat generation temperature (approximately 900'O for ignition glow plug 7, approximately 500'C for vaporizing glow plug 8), and therefore both glow plugs In order to rapidly raise the heat generation temperature to the specified heat generation temperature, one glow plug is connected to one power source.
1 in parallel to ensure that sufficient power is supplied.

このため、スタートスイッチ12をオンにした直後は、
切換スイッチ14および15がオンに、切換スイッチ1
8がオフとなるようにコントローラ17により制御され
る。
Therefore, immediately after turning on the start switch 12,
Changeover switches 14 and 15 are turned on, changeover switch 1
8 is turned off by the controller 17.

着火グロープラグ7および気化グロープラグ8が、夫々
抵抗器16および13を介して電源11に対して並列に
接続されると、両グロープラグ7.8は所定の発熱温度
に至るまで急速に加熱されるが、温度上昇に伴って夫々
の抵抗線7a、7bの抵抗値も増大する。従って着火グ
ロープラグ7に対して直列に接続された抵抗器16と、
気化グロープラグ8に対して直列に接続された抵抗器1
3とに流れる電流は徐々に減少していく。従って、抵抗
器16の両端に作用する電圧も徐々に低下していくが、
着火グロープラグ7が所定の発熱温度(約900℃)に
至ったときの抵抗器16の両端電圧をコントローラ17
がセンスして、回路を直列回路に切換える。すなわち、
今度は切換スイッチ14.15がオフに、切換スイッチ
18がオンとなる。
When the ignition glow plug 7 and the vaporizing glow plug 8 are connected in parallel to the power supply 11 via resistors 16 and 13, respectively, both glow plugs 7.8 are rapidly heated to a predetermined exothermic temperature. However, as the temperature rises, the resistance values of the respective resistance wires 7a and 7b also increase. Therefore, a resistor 16 connected in series with the ignition glow plug 7;
Resistor 1 connected in series to vaporizing glow plug 8
The current flowing through 3 and 3 gradually decreases. Therefore, the voltage acting across the resistor 16 also gradually decreases.
The controller 17 controls the voltage across the resistor 16 when the ignition glow plug 7 reaches a predetermined heat generation temperature (approximately 900°C).
senses and switches the circuit to a series circuit. That is,
This time, the changeover switches 14 and 15 are turned off and the changeover switch 18 is turned on.

尚、気化グロープラグ8の周囲には、加熱装置6(第1
図)に供給される燃料が存在するので、気化グロープラ
グ8が所定の発熱温度(約500℃)に上昇する迄の時
間と、着火グロープラグ7が所定の発熱温度に上昇する
迄の時間とに差が生じることとなるので、抵抗Ig13
の抵抗値を適当に定めておくことによって両グロープラ
グの昇温時間が等しくなるようにしておく。また、回路
が直列回路に切換えられたときに、両グロープラグ7.
8の間に接続される抵抗器19は、両グロープラグの発
熱温度が一定に維持されるようにその抵抗値が適切に定
められる。
Incidentally, a heating device 6 (first
Since there is fuel supplied to There will be a difference in the resistance Ig13.
By appropriately determining the resistance value of the glow plugs, the temperature rising time of both glow plugs is made equal. Also, when the circuit is switched to a series circuit, both glow plugs 7.
The resistance value of the resistor 19 connected between the glow plugs 8 and 8 is appropriately determined so that the heat generation temperature of both glow plugs is maintained constant.

(発明の効果) 本発明の自動車用暖房装置のftJI m装置は以上の
ように構成されていて、単に気化グロープラグ8と着火
グロープラグ7とを並列又は飲タリに切換えるだけで、
急速加熱又は定温度維持を行なうことのできるきわめて
簡単な制御装置が提供される。
(Effects of the Invention) The ftJIm device of the automotive heating system of the present invention is configured as described above, and by simply switching the vaporizing glow plug 8 and the ignition glow plug 7 in parallel or in tandem,
A very simple control device is provided which allows rapid heating or constant temperature maintenance.

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

第1図は、本発明の制御装置が適用される自動車用暖房
装置の概略構成を示すものである。 第2図は、本発明の自動車用暖房装置の制御装置の一実
施例を示す結線図である。 1・・・燃焼器、2・・・熱交換器、7・・・着火グロ
ープラグ、8・・・気化グロープラグ、14,15.1
8・・・切換スイッチ、17・・・コントローラ。
FIG. 1 shows a schematic configuration of a heating device for an automobile to which a control device of the present invention is applied. FIG. 2 is a wiring diagram showing an embodiment of a control device for a heating device for an automobile according to the present invention. 1... Combustor, 2... Heat exchanger, 7... Ignition glow plug, 8... Evaporation glow plug, 14, 15.1
8... Selector switch, 17... Controller.

Claims (1)

【特許請求の範囲】[Claims]  燃料を気化する気化グロープラグと気化燃料に着火す
る着火グロープラグとを備えた燃焼器を有する自動車用
暖房装置の制御装置において、前記気化グロープラグお
よび着火グロープラグを、夫々の発熱温度が所定温度以
下にあるときには電源に対して互いに並列に接続し、所
定温度になったときには電源に対して互いに直列に接続
する手段を備えたことを特徴とする自動車用暖房装置の
制御装置。
In a control device for an automobile heating system having a combustor equipped with a vaporizing glow plug that vaporizes fuel and an ignition glow plug that ignites the vaporized fuel, the vaporizing glow plug and the ignition glow plug are controlled so that their respective heat generation temperatures are set to a predetermined temperature. What is claimed is: 1. A control device for a heating device for an automobile, characterized by comprising means for connecting each other in parallel to a power source when the following conditions occur, and for connecting each other in series to a power source when a predetermined temperature is reached.
JP60279945A 1985-12-12 1985-12-12 Control device for automobile heating system Expired - Lifetime JPH0617724B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60279945A JPH0617724B2 (en) 1985-12-12 1985-12-12 Control device for automobile heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60279945A JPH0617724B2 (en) 1985-12-12 1985-12-12 Control device for automobile heating system

Publications (2)

Publication Number Publication Date
JPS62139710A true JPS62139710A (en) 1987-06-23
JPH0617724B2 JPH0617724B2 (en) 1994-03-09

Family

ID=17618108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60279945A Expired - Lifetime JPH0617724B2 (en) 1985-12-12 1985-12-12 Control device for automobile heating system

Country Status (1)

Country Link
JP (1) JPH0617724B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840001A (en) * 1988-01-30 1989-06-20 Nifco Inc. Device for mounting window pane
US5632250A (en) * 1994-09-20 1997-05-27 Honda Giken Kogyo Kabushiki Kaisha Gas fuel supply system for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840001A (en) * 1988-01-30 1989-06-20 Nifco Inc. Device for mounting window pane
US5632250A (en) * 1994-09-20 1997-05-27 Honda Giken Kogyo Kabushiki Kaisha Gas fuel supply system for vehicle

Also Published As

Publication number Publication date
JPH0617724B2 (en) 1994-03-09

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