JPS5958162A - Control device for preheating of engine - Google Patents
Control device for preheating of engineInfo
- Publication number
- JPS5958162A JPS5958162A JP16739082A JP16739082A JPS5958162A JP S5958162 A JPS5958162 A JP S5958162A JP 16739082 A JP16739082 A JP 16739082A JP 16739082 A JP16739082 A JP 16739082A JP S5958162 A JPS5958162 A JP S5958162A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- glow plug
- level
- temperature
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
- F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
- F02P19/021—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs characterised by power delivery controls
- F02P19/022—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs characterised by power delivery controls using intermittent current supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
- F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
- F02P19/025—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs with means for determining glow plug temperature or glow plug resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はディーセル機関等の始動時予熱を行なうための
機関予熱制御装置に関し、その目的とすることはグロー
プラグの通電を断続“りる簡単な手法を採用しつつも、
グロープラグの温度調整を精度よく行なうこと、および
そのノ、：めの簡単な回路構成を提供することである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine preheating control device for preheating a diesel engine, etc. at the time of starting. ,
To accurately adjust the temperature of a glow plug, and to provide a simple circuit configuration.
以下本発明を図示例について説明する。The present invention will be described below with reference to illustrated examples.
第１図の全体構成図において、■は車載バ・ンテリ、２
はキースイッチ、３は車両原動機としての４気筒デイー
ゼルエンジン、４．５．６．７は予熱箇所となる各気筒
の副室に取りつけたグロープラグであり、このグロープ
ラグは正の抵抗温度係数を有する発熱体からなっている
。８はグロープラグ４．５．６．７へのバッテリ■から
の通電を開閉するリレー、９はグロープラグに流れる電
流に比例した電圧を発生ずるための検出抵抗で１０ｍΩ
程度の微小抵抗であり、抵抗温度係数が無視可能に小さ
い材質により作られる。In the overall configuration diagram in Figure 1, ■ is an in-vehicle battery;
is a key switch, 3 is a 4-cylinder diesel engine as the vehicle's prime mover, and 4.5.6.7 is a glow plug installed in the preheating chamber of each cylinder, which serves as a preheating point.This glow plug has a positive temperature coefficient of resistance. It consists of a heating element with 8 is a relay that opens and closes the supply of electricity from the battery to glow plug 4.5.6.7, and 9 is a detection resistor of 10 mΩ that generates a voltage proportional to the current flowing through the glow plug.
It is made of a material with a negligibly small resistance temperature coefficient.
１０はアース端子であり、１１は検出抵抗９に化した電
圧を拡大増幅Ｊる増幅器である。１４は増幅器１０の出
力電圧を所定値と比較するための比較器＋１Ａであり、
バッテリｌの電圧ｊ’１ｉｉｌ子とアース端７−１１１
の電圧を抵抗１４１と１４２によっ゛ζ分割しまた電圧
分割値は、グロープラグ温度が９ｏＯ“（：に相当Ｊる
グミ１−プラグ抵抗の時の検出抵抗９の電１Ｆを増幅し
、たもｌ′ｆに設定しである。10 is a ground terminal, and 11 is an amplifier for magnifying and amplifying the voltage applied to the detection resistor 9. 14 is a comparator +1A for comparing the output voltage of the amplifier 10 with a predetermined value;
Voltage j'1iil of battery l and ground terminal 7-111
The voltage of ζ is divided by resistors 141 and 142, and the voltage division value is obtained by amplifying the voltage 1F of the detection resistor 9 when the glow plug temperature is 9oO (corresponding to J) and the plug resistance. is also set to l'f.
１８はＮ ＯＴｌｊｉｌ １ｉｆｔである。１Ｇ（Ｊ充
放電回路であり、Ｎ０１＜回路１８の出力が’ ＩＩ
”レベルから“’ Ｌ、 ”レベルの立５１丁かりにて
トランジスタが非通電状態となり、二１ンデンザ１６１
の充電が開始され、コンデンリ・１６１の端子電圧ｉ；
ｊ−にかり始める。また、Ｎ ＯＴ回路１８の出力が“
Ｌ”し・＼ルからパ１■”レー・ルの立ち「がりに′Ｃ
トランジスタ１〔ｊ３が通電状態となり、二１ンデン勺
１６１の電荷は放電し二１ンデンザ１６１の端子電圧は
Ｆがる。18 is N OTljil 1ift. 1G (J charging/discharging circuit, N01<output of circuit 18 is 'II
The transistor becomes de-energized at the 51st point from the ``L'' level to the ``L'' level, and the
charging starts, and the terminal voltage i of the condenser 161;
j-Start to get angry. Also, the output of the NOT circuit 18 is “
L"shi・\ru to pa1 ■"Lee・ru's standing ``garini'C
Transistor 1[j3 becomes energized, the electric charge of the 21-denser 161 is discharged, and the terminal voltage of the 21-denser 161 decreases.
Ｉ５は−ｌンデンザ１６１の端子電圧と所定値を比較す
るための比較器１？ｈであり、バッテリ１の電圧）シ＋
；ａイとアース端子ＩＯの電圧をＪｌ（抗１５１と１５
２によっ′ζ分割した電圧分割値は、こ１ンデンザ１６
１が抵抗１６２を介し充電を開始してからす。ｆｆ
（例えば３．５秒）時間後のコンデンＡ） ｌ ６１の
端子電圧値に設定しである。I5 is a comparator 1? for comparing the terminal voltage of the -l differential sensor 161 with a predetermined value. h and the voltage of battery 1)
;The voltage of a and ground terminal IO is Jl (resistance 151 and 15
The voltage division value divided by 2 is the voltage division value of 16
1 starts charging via the resistor 162. ff
After a period of time (for example, 3.5 seconds), the capacitor A) is set to a terminal voltage value of 61.
′１７は微分回路であり・、キースイソヂ２をＯＮに投
入した時には抵抗１７１とコンデンサ１７３により、ま
た比較回路１５の出力が゛°Ｌ゛レヘルレベ“’ Ｈ”
レベルの立ち」二かりにて抵抗１７２とコンデンサ１７
３により、正のｉリカを比較回路１４の反転入力端子に
人力する。'17 is a differentiating circuit, and when the key isolation 2 is turned on, the resistor 171 and capacitor 173 change the output of the comparator circuit 15 to 'L' level ''H'
"Level rise" with two resistors 172 and capacitors 17
3, a positive i voltage is input to the inverting input terminal of the comparator circuit 14.
Ｉ９はＮ Ｏ１回［７８１８の出力によりリレー８を一
駆動する駆動回路である。I9 is a drive circuit that drives the relay 8 once by the output of NO 7818.
第２図は作動説明のための各部信号のクィムヂャ−１・
である。まず運転者がキースイソヂ２を投入（ＯＮの位
置）すると、微分量１１８１７番Ｊ抵抗１７１とコンデ
ン・す・１７３により正の１リガを比較回路１４の反転
入力端子に入力するため比較回路Ｉ４の出力はＬ”レベ
ルとなり、Ｎ ＯＩ’回路１８の出力は“Ｈ”レベルと
なりリレー８は閉成する。微分回路１７の正のトリガ消
滅後もプラグ１１υ。Figure 2 shows the signals of each part to explain the operation.
It is. First, when the driver turns on the key isoji 2 (ON position), the differential value 11817 J resistor 171 and the capacitor S 173 input a positive 1 trigger to the inverting input terminal of the comparator circuit 14, so the output of the comparator circuit I4 becomes "L" level, the output of NOI' circuit 18 becomes "H" level and relay 8 is closed. Even after the positive trigger of differentiation circuit 17 disappears, plug 11υ remains unchanged.
度が９００℃以下であれば、駆動回路１９の出力により
リレー８は閉成し続ける。If the temperature is below 900°C, the output of the drive circuit 19 keeps the relay 8 closed.
通電開始後、プラグ温度が９００“Ｃに達すると比較回
路１４の出力は”Ｌ″レベルら“１１″レベルζなり、
Ｎ Ｏ′Ｆ回路１８の出力は“Ｌ”レベルとなりリレー
８は開となりグロ−プラグ電流は流れず、一方Ｎ Ｏｉ
’回路１８の” Ｉ（″から“Ｌ”レベルの立らドかり
にてトランジスタ１６３が非通電状態となり、二１ンデ
ンサ１６１の充電が開始され、ｔｏｆｆ（例えば３．５
秒）時間後、コンデンサ１６１の＋ＩＩ＋ｉ子電圧は抵
電圧５１と抵抗１５２に、１−る電圧分割値より大とな
るため、比較回路１５の出力がＩ、゛から” ＩＩ ”
レベルとなる。比較１ｌｉｌ 、１７凸１５の出力がＬ
″から“’ ＩＩ ”レベルとなることににす、微分回
路１７の抵抗１７２とコンデンサ１７３より正のトリガ
が比較回路１４の反転入ノＪ ｒｌｉｉｌ了に人力し、
比較回路１４の出力はＬ ”レベルとなり、Ｎ ＯＴ回
路１８の出力は“■ビレベルとなり、キースイ・７チ２
の投入時と同様にリレー８を閉成し続ける。一方Ｎ Ｏ
′Ｆ回路１８の出力がパ１１“レベルになることにより
、トランジスタ１６３は通電状態となり、コンデンサ１
６１の電荷は放電し、コンデンサ１６１の４１子重圧は
Ｆがり、比較回路１５の出力は“Ｌ ”レベルとなる。After the power supply starts, when the plug temperature reaches 900 "C", the output of the comparator circuit 14 goes from "L" level to "11" level ζ.
The output of the N O'F circuit 18 becomes "L" level, the relay 8 is opened, and no glow plug current flows, while the N Oi
The transistor 163 becomes de-energized at the rising edge of the "L" level from "I(" of the circuit 18, charging of the second capacitor 161 is started, and toff (for example, 3.5
After a time (seconds), the +II+i voltage of the capacitor 161 becomes larger than the voltage division value of 1- between the resistive voltage 51 and the resistor 152, so the output of the comparator circuit 15 changes from I, ゛ to "II"
level. Comparison 1lil, 17 convex 15 output is L
'' to the ``II'' level, a positive trigger from the resistor 172 and capacitor 173 of the differentiating circuit 17 is input to the inverting input of the comparator circuit 14,
The output of the comparator circuit 14 becomes the "L" level, and the output of the NOT circuit 18 becomes the "■B level."
Relay 8 continues to be closed in the same way as when it was turned on. On the other hand, NO
When the output of the F circuit 18 reaches the level P11, the transistor 163 becomes energized, and the capacitor 163 becomes energized.
The charge of the capacitor 161 is discharged, the load on the capacitor 161 becomes F, and the output of the comparator circuit 15 becomes "L" level.
そのため微分回路１７の正のトリガは消７戚Ｊるがプラ
グ温度が９００°Ｃ以下であれば、駆動回路１９の出力
によりリレー８は閉成し続ける。Therefore, the positive trigger of the differential circuit 17 is turned off, but if the plug temperature is below 900°C, the relay 8 continues to be closed by the output of the drive circuit 19.
通電再開後、再度プラグ温度が９００℃に達すると比較
回路１４の出力は“Ｌ゛′から“’ Ｈ”レベル、Ｎ
ＯＴ回路１８は“Ｌ“′となり、リレー８は開となり、
一方コンデンサ１６１は充電を開始し、ｔｏｆｆ時間後
、比較回路１５の出力がＬ゛から“” Ｈ”レベルとな
り、微分回路から正のトリガパルスが比較回路１４の反
転入力端子に人力され、比較回路１４の出力は“Ｌ”レ
ベル、Ｎ ＯＴｌ路１８の出力は″Ｈルベルとなり、リ
レー８は閉成し、コンデンサ１６１の電荷が放電され、
比較器［１８１５の出力は“Ｌルベルとなる。After power supply is resumed, when the plug temperature reaches 900°C again, the output of the comparator circuit 14 changes from "L" to "'H" level, N
The OT circuit 18 becomes "L"', the relay 8 becomes open,
On the other hand, the capacitor 161 starts charging, and after the toff time, the output of the comparator circuit 15 changes from L to "H" level, a positive trigger pulse is input from the differentiating circuit to the inverting input terminal of the comparator circuit 14, and the comparator circuit The output of 14 becomes "L" level, the output of NOTl path 18 becomes "H level", relay 8 is closed, and the charge in capacitor 161 is discharged.
The output of the comparator [1815 is "L level".
なお、上述した第１図の構成では、コンデンサ１６１の
充放電の開始（スイッチング）にトランジスタ１６３を
使用しているが、第３図に示すようにダイオ−Ｆ ｌ
６４を用い°ζも、コンデンサ１６１の充放電のスイツ
チングは可能である。In the configuration shown in FIG. 1 described above, the transistor 163 is used to start charging and discharging (switching) the capacitor 161, but as shown in FIG.
It is also possible to switch the charging and discharging of the capacitor 161 using 64 °ζ.
すた放電回路１６のｔｏｆｆ時間は、スタータス・イノ
チあるいは投入時あるいは機関温度などにより変化され
る構成としζもよい。The to-off time of the starter discharge circuit 16 may be configured to be changed depending on the start/starting time, the engine temperature, etc.
以」二のように本発明は節部な回路＋ｊヶ成でグロープ
ラグへの給電をグロ−プラグ温度に応じて断続し、グロ
ープラグ温度を所望値に安定に維持ごきる。As described above, the present invention is capable of stably maintaining the glow plug temperature at a desired value by intermittent power supply to the glow plug according to the glow plug temperature using a circuit consisting of nodes.
ｍ １図は本発明の一実施例を示ず電気結線図、？（！
２ ＋２１１Ｊその作動タイツ、ヂャート、第３図は
第１図１９１を示す電気結線図である。
４〜゛ｌ・・・グ覧、Ｉ−プラグ、８・・・リレー、９
・・・検出抵抗、１４・・・比較回路、１５．１６・・
・タイマ回路をなす充放電１川路と比較回路、１７・・
・微分回１１８゜１９・・・！駆動量１１６． ２・・
・キースイッチ。
代理人ブＦ理士 岡 部 隆Figure 1 does not show an embodiment of the present invention and is an electrical wiring diagram. (!
Figure 3 is an electrical wiring diagram showing Figure 1 191. 4～゛l...G-view, I-plug, 8...Relay, 9
...Detection resistor, 14...Comparison circuit, 15.16...
・Charge/discharge 1 channel and comparison circuit forming a timer circuit, 17...
・Differential rotation 118°19...! Drive amount 116. 2...
・Key switch. Agent BUF Physician Takashi Okabe
Claims (1)
予熱制御装置におい′ζ、 前記グロープラグに流れる電流を検出する検出器と、 この検出器の検出信号に応答し“ζ前記グロープラクが
所定温度具「である場合に付勢信号を生じる比較器＋７
８と、 この比較回路のイ１勢信号によ、り前記グロープラグの
通電回路を閉成させる回路と、 前記比較回路の付勢借りの消滅により時間信号を生じる
ように（ｒｆ成されたタイマ回１？８と、この充放電回
路の時間信号の消滅およびこの制御量＋１ｉ）の作動ス
４ ｙチの投入に応答して前記比較器１−８を活性化す
るパルス信号を発生ずる微分回路と、 を６：Ｉえてなる機関予熱制御装置。[Claims] An engine preheating control device using a glow plug having a predetermined temperature coefficient of resistance includes: a detector for detecting a current flowing through the glow plug; and a detector for detecting a current flowing through the glow plug; Comparator +7 that produces an energizing signal when the glow plaque is at a predetermined temperature
8, a circuit that closes the energizing circuit of the glow plug according to the A1 signal of this comparison circuit, and a circuit that generates a time signal by the extinguishing of the energization of the comparison circuit (an RF timer). A differentiation circuit that generates a pulse signal to activate the comparators 1-8 in response to the disappearance of the time signal of this charge/discharge circuit and the activation of this control amount +1i). An engine preheating control device that has 6:I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16739082A JPS5958162A (en) | 1982-09-24 | 1982-09-24 | Control device for preheating of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16739082A JPS5958162A (en) | 1982-09-24 | 1982-09-24 | Control device for preheating of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5958162A true JPS5958162A (en) | 1984-04-03 |
| JPS6156425B2 JPS6156425B2 (en) | 1986-12-02 |
Family
ID=15848811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16739082A Granted JPS5958162A (en) | 1982-09-24 | 1982-09-24 | Control device for preheating of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5958162A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759067A (en) * | 1980-09-24 | 1982-04-09 | Mazda Motor Corp | Energizing device for glow plug of diesel engine |
-
1982
- 1982-09-24 JP JP16739082A patent/JPS5958162A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759067A (en) * | 1980-09-24 | 1982-04-09 | Mazda Motor Corp | Energizing device for glow plug of diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6156425B2 (en) | 1986-12-02 |
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