JPS6273820A - Analog signal input circuit for on-vehicle controller - Google Patents
Analog signal input circuit for on-vehicle controllerInfo
- Publication number
- JPS6273820A JPS6273820A JP21226485A JP21226485A JPS6273820A JP S6273820 A JPS6273820 A JP S6273820A JP 21226485 A JP21226485 A JP 21226485A JP 21226485 A JP21226485 A JP 21226485A JP S6273820 A JPS6273820 A JP S6273820A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- analog sensor
- analog
- input circuit
- circuit
- 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.)
- Pending
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、中・伐二］ン１−ローラ用アナ［−］グ信号
入力回路に係り、耐ノイズ性を向上したレンリー入力回
路に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an analog signal input circuit for a medium-duty, logging engine, and 1-roller, and more particularly to a Renley input circuit with improved noise resistance.
〈従来の技トドｉと問題点〉
最近中・代用コントローラを利用して種々の１１制御を
行なうことが一般化されつつある１、この］ン１〜「１
−ラの入力としては、多くのアブ−［］グセンリー出力
が必るが、このアナログセンサ゛出力１．１電圧出力で
あることも一般的なことである。アナログＰ〕／す出力
として電圧出力を利用リーる場合、貯油ＩＣやＣＰＵの
電源電圧の５Ｖを利用していることか多い。<Conventional techniques and problems> Recently, it has become common to use substitute controllers to perform various 11 controls.
As an input to the analog sensor, many outputs are necessary, but it is also common for this analog sensor output to be a 1.1 voltage output. When using voltage output as an analog output, 5V of the power supply voltage of the oil storage IC or CPU is often used.
しかしながら、この５■という低電圧に月しく◇りえば
分圧された形′Ｃ−センリ゛出力信号を（Ｖ？る１易合
、電圧検出範囲が非常に狭いために７）−イズ（こ影響
されやすいという問題かある。例えば、し二ンリ出力と
してアクセル開度８現わす化１１検出（言号か市るが、
このアクセル１１旧１はアクセルの閉から全開まてＯ〜
１００稈度の段階で制御されるので、電源電圧５Ｖのう
ら動作上１〜３Ｖまて８恒）出範囲とすると２Ｖ間で１
００段階の１＋’ｌ ＩＩＩりる心安か牛しることにな
り、この挟範囲でノイズ８照１・見することは困難なこ
とでおる。However, if the voltage is as low as 5 ◇, the voltage-divided C-sensor output signal can be easily converted to (V), but since the voltage detection range is very narrow, There is a problem that it is easily influenced. For example, when the accelerator opening is 8 and 11 is detected as an output,
This accelerator 11 old 1 goes from closing the accelerator to fully opening.
Since it is controlled in stages of 100 culms, if the power supply voltage is 5 V and the output range is 1 to 3 V (8 constants), the output will be 1 to 1 between 2 V.
00 level 1 + 'l III Rirururururururururururururu sense of security or doubts, it is difficult to see the noise in this narrow range.
そこで１本発明（ま、上述の欠点に鑑み耐ノイズ性を向
上した中成−」ン［−ローラ用ア−ノーログ信号入力回
路の提供を目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, the object of the present invention is to provide a log signal input circuit for intermediate rollers with improved noise resistance.
く問題点を解決するための手段〉
子連の目的を達成する本発明は、電源電圧をアナログセ
ンサにより分圧してＡ／Ｄ変換器に入力する回路にあ°
いて、
上記アナログセンサに印加される電源電圧を車載のバッ
テリ電圧とするようにバッテリと上記アナ［１グセン４
）とを接続し、上記アナログセンサによって分圧される
電源電圧がＡ／Ｄ変換器の定格入力に対応して更に分圧
されるように上記アナログセンサに分圧器を接続するこ
とを特徴とする。Means for Solving Problems> The present invention, which achieves the above objectives, is based on a circuit that divides the power supply voltage using an analog sensor and inputs it to an A/D converter.
Then, the battery and the analog sensor [1
), and a voltage divider is connected to the analog sensor so that the power supply voltage divided by the analog sensor is further divided in accordance with the rated input of the A/D converter. .
〈作用〉
バッチ１ノ電圧を用いることで分圧されても従来より高
電圧値のアナログ信号を得ることができる。<Operation> By using the batch 1 voltage, it is possible to obtain an analog signal with a higher voltage value than before even if the voltage is divided.
〈実施例〉
ここで、図を参照して本発明の詳細な説明する。図は一
実施例で車載のバッテリ１は、バッチｌ）電圧（例えば
２４Ｖ）の定電圧回路２を介してアナログセンサ３に接
続されると共に、例えば５■の定電圧回路４を介して各
ＩＣの電源（図示省略）に接続されている。可変抵抗器
等からなるアナログセン１ノ３の可変端子は、更にコン
トローラ内部に至って分圧器５を介してＡ／Ｄ変換器を
内蔵したアナログ入力回路６に接続されている。<Example> The present invention will now be described in detail with reference to the drawings. The figure shows an example in which an on-vehicle battery 1 is connected to an analog sensor 3 via a constant voltage circuit 2 with a batch voltage (for example, 24 V), and is connected to each IC via a constant voltage circuit 4 with a batch voltage (for example, 24 V). is connected to the power supply (not shown). The variable terminals of the analog sensors 1 and 3, which are comprised of variable resistors and the like, are further connected to the inside of the controller via a voltage divider 5 to an analog input circuit 6 containing an A/D converter.
この場合、定電圧回路２は、例えば２４Ｖ又は１８Ｖ程
度にして作動電圧変動の余裕を考慮している。アナログ
センサ３の可変端子に接続される分圧器５では、アナロ
グ入力回路６の人力定格電圧に合う様（ご分圧され、分
圧比が例えば抵抗器Ｒ八：ＲＢを１９：５となっている
。In this case, the constant voltage circuit 2 is set to about 24 V or 18 V, for example, in consideration of margin for operating voltage fluctuation. The voltage divider 5 connected to the variable terminal of the analog sensor 3 divides the voltage to match the human power rated voltage of the analog input circuit 6, and the voltage division ratio is, for example, 19:5 for resistors R8:RB. .
この結果、アナログセンサ３ではＯＶから２４Ｖの範囲
で分圧されるので、耐ノイズ性は格段に向上する。そし
て、この電圧を更に分圧してＣＰＵ制御に見合った入力
定格電圧をｉｑることが一〇きる。As a result, in the analog sensor 3, the voltage is divided in the range from OV to 24V, so that the noise resistance is significantly improved. Then, by further dividing this voltage, it is possible to iq the input rated voltage suitable for CPU control.
〈発明の効果〉
以上説明したように本発明によれば、車載のバッテリ電
圧を利用してセンサ出力を得ているため、耐ノイズ性が
格段に向上した。<Effects of the Invention> As explained above, according to the present invention, since the sensor output is obtained using the battery voltage mounted on the vehicle, the noise resistance is significantly improved.
図は本発明の一実施例を示す回路図である。
図中、
１はバッテリ、
２は定電圧回路、
３はアナログセンサ、
５は分圧器である。
特 許出 願 人 三菱自動小工業株式会社代理人
弁理士 光行 士部（他１名）ハ；
Ｒａ： Ｒｅ＝１９： ５The figure is a circuit diagram showing one embodiment of the present invention. In the figure, 1 is a battery, 2 is a constant voltage circuit, 3 is an analog sensor, and 5 is a voltage divider. Patent application person Mitsubishi Automatic Small Industries Co., Ltd. Agent
Patent attorney Mitsuyuki Shibe (and 1 other person) C; Ra: Re=19: 5
Claims (1)
に入力する回路において、 上記アナログセンサに印加される電源電圧を車載のバッ
テリ電圧とするようにバッテリと上記アナログセンサを
接続し、上記アナログセンサによつて分圧される電源電
圧がＡ／Ｄ変換器の定格入力に対応して更に分圧される
ように上記アナログセンサに分圧器を接続することを特
徴とする車載コントローラ用アナログ信号入力回路。[Claims] In a circuit that divides a power supply voltage using an analog sensor and inputs the divided voltage to an A/D converter, a battery and the analog sensor are connected so that the power supply voltage applied to the analog sensor is the voltage of an on-board battery. A voltage divider is connected to the analog sensor so that the power supply voltage divided by the analog sensor is further divided in accordance with the rated input of the A/D converter. Analog signal input circuit for controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21226485A JPS6273820A (en) | 1985-09-27 | 1985-09-27 | Analog signal input circuit for on-vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21226485A JPS6273820A (en) | 1985-09-27 | 1985-09-27 | Analog signal input circuit for on-vehicle controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6273820A true JPS6273820A (en) | 1987-04-04 |
Family
ID=16619699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21226485A Pending JPS6273820A (en) | 1985-09-27 | 1985-09-27 | Analog signal input circuit for on-vehicle controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6273820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306789B6 (en) * | 2016-05-05 | 2017-07-07 | Vysoká Škola Báňská-Technická Univerzita Ostrava | Connection of a stimulation circuit quality indicator |
-
1985
- 1985-09-27 JP JP21226485A patent/JPS6273820A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306789B6 (en) * | 2016-05-05 | 2017-07-07 | Vysoká Škola Báňská-Technická Univerzita Ostrava | Connection of a stimulation circuit quality indicator |
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