JPS6321868B2 - - Google Patents
Info
- Publication number
- JPS6321868B2 JPS6321868B2 JP54149146A JP14914679A JPS6321868B2 JP S6321868 B2 JPS6321868 B2 JP S6321868B2 JP 54149146 A JP54149146 A JP 54149146A JP 14914679 A JP14914679 A JP 14914679A JP S6321868 B2 JPS6321868 B2 JP S6321868B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output voltage
- failure
- output
- diagnosing
- 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
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
【発明の詳細な説明】
本発明は自動車の充電系統の診断方法に係り、
特に各部の故障を容易に診断するのに好適な診断
方法に関するものである。自動車の充電装置とし
ては、例えば、米国特許No.3718849号等に記載の
ものが知られている。[Detailed Description of the Invention] The present invention relates to a method for diagnosing a charging system of an automobile,
In particular, the present invention relates to a diagnostic method suitable for easily diagnosing failures in various parts. As a charging device for a car, for example, one described in US Pat. No. 3,718,849 is known.
従来のこの種充電系統の診断方法は、充電装置
の直流出力電圧の交流成分、すなわち、交流を全
波整流した直流出力電圧のリツプルを抽出して、
このリツプルの所定時間内の数を基準値と比較し
て整流器の故障を診断するようにしていた。しか
し、この方法には、リツプル数の基準値が交流発
電機の磁極数に比例した値であり、磁極数は自動
車が使用している交流発電機の種類によつて異な
り、しかも、製造業者以外の者には分りにくいも
のであるため、基準値を定めるのが非常に困難で
あるという問題があつた。 The conventional method for diagnosing this type of charging system is to extract the AC component of the DC output voltage of the charging device, that is, the ripples of the DC output voltage obtained by full-wave rectification of AC.
The number of ripples within a predetermined period of time is compared with a reference value to diagnose a rectifier failure. However, in this method, the reference value of ripple number is a value proportional to the number of magnetic poles of the alternator, and the number of magnetic poles varies depending on the type of alternator used in the car, and furthermore, There was a problem in that it was very difficult to set standard values because it was difficult for people to understand.
本発明は上記に鑑みてなされたもので、その目
的とするところは、どんな自動車の充電系統でも
各部の故障を容易に診断することができる自動車
の充電系統の診断方法を提供することにある。 The present invention has been made in view of the above, and an object thereof is to provide a method for diagnosing a charging system of an automobile that can easily diagnose failures in various parts of the charging system of any automobile.
本発明の特徴は、自動車の充電系統の直流出力
電圧とこの出力電圧の交流成分を矩形波に変換し
た信号とを演算処理装置に取り込み、この演算処
理装置で上記信号の有無を判定して上記充電系統
の交流発電機の界磁回路の故障を診断し、上記信
号の周期が所定時間一定であるか否かを判定して
上記交流発電機の出力を整流する整流器の故障を
診断し、上記出力電圧の平均値があらかじめ設定
した基準電圧の範囲内にあるか否かを判定して上
記出力電圧を調整する電圧調整器の故障を診断す
るようにした点にある。 A feature of the present invention is that a DC output voltage of a car charging system and a signal obtained by converting the AC component of this output voltage into a rectangular wave are input into an arithmetic processing unit, and the arithmetic processing unit determines the presence or absence of the above signal. diagnosing a failure in a field circuit of an alternator in a charging system, determining whether the period of the signal is constant for a predetermined period of time, diagnosing a failure in a rectifier that rectifies the output of the alternator; The present invention is characterized in that a failure of a voltage regulator that adjusts the output voltage is diagnosed by determining whether or not the average value of the output voltage is within a preset reference voltage range.
以下本発明の方法の一実施例を第１図ないし第
３図を用いて詳細に説明する。 An embodiment of the method of the present invention will be described in detail below with reference to FIGS. 1 to 3.
第１図において、１は蓄電池で、蓄電池１は、
電圧調整器２によつて直流出力電圧を制御されて
いる充電装置３によつて充電される。充電装置３
は、電圧調整器２と、３相の発電コイル４〜６、
界磁コイル７を有する交流発電機８と、交流発電
機８の交流出力を整流する整流素子９〜１４から
なる整流器１５とから構成してあり、電圧調整器
２と界磁コイル７とは界磁端子１６で接続してあ
る。１７は出力端子、１８は接地端子である。 In FIG. 1, 1 is a storage battery, and the storage battery 1 is
It is charged by a charging device 3 whose DC output voltage is controlled by a voltage regulator 2. Charging device 3
is a voltage regulator 2, three-phase generator coils 4 to 6,
It is composed of an alternating current generator 8 having a field coil 7, and a rectifier 15 consisting of rectifier elements 9 to 14 that rectify the alternating current output of the alternator 8, and the voltage regulator 2 and the field coil 7 They are connected via magnetic terminals 16. 17 is an output terminal, and 18 is a ground terminal.
ところで、本発明においては、出力端子１７と
接地端子１８間に生ずる直流出力電圧Ｖを演算処
理装置１９に取り込むとともに、上記直流出力電
圧の交流成分、すなわち、リツプル電圧のみをコ
ンデンサ２０を介して取り出し、増幅器２１で増
幅後、比較器２２に入力させ、比較器２２に与え
てある基準電圧源２３の電圧値と比較して、この
電圧より大きい部分を矩形波に変換した信号Ｅも
演算処理装置１９に取り込んである。演算処理装
置１９としては、マイクロコンピユータを使用す
るが、一般の電子計算機を用いてもよいことはい
うまでもない。 By the way, in the present invention, the DC output voltage V generated between the output terminal 17 and the ground terminal 18 is taken into the arithmetic processing unit 19, and only the AC component of the DC output voltage, that is, the ripple voltage, is taken out via the capacitor 20. , after being amplified by the amplifier 21, the signal E is input to the comparator 22 and compared with the voltage value of the reference voltage source 23 given to the comparator 22, and the signal E obtained by converting the portion larger than this voltage into a rectangular wave is also processed by the arithmetic processing unit. It has been incorporated into the 19th. Although a microcomputer is used as the arithmetic processing unit 19, it goes without saying that a general electronic computer may also be used.
第２図は第１図の各部波形図で、第２図ａは直
流出力電圧Ｖの波形を示し、ｂは比較器２１の出
力、すなわち、信号Ｅの波形を示す。直流出力電
圧Ｖは、第２図ａに示すようにリツプルを有し、
正常時はＡで示すような小さいリツプル波形とな
つているが、整流素子９〜１４のうちいずれかが
故障すると、Ｂで示すような大きいリツプル波形
となる。VAは平均電圧である。なお、第２図ｂ
には、増幅器２１に入力させる電圧の波形が第２
図ａの実線で示すようになつている場合の比較器
２２からの信号Ｅの波形が示してある。 FIG. 2 is a waveform diagram of each part of FIG. 1. FIG. 2a shows the waveform of the DC output voltage V, and FIG. 2b shows the waveform of the output of the comparator 21, that is, the signal E. The DC output voltage V has a ripple as shown in FIG. 2a,
Under normal conditions, the waveform is a small ripple waveform as shown by A, but if any of the rectifying elements 9 to 14 fails, the waveform becomes a large ripple waveform as shown by B. V A is the average voltage. In addition, Fig. 2b
, the waveform of the voltage input to the amplifier 21 is the second one.
The waveform of signal E from comparator 22 is shown as shown by the solid line in Figure a.
第３図は第１図の演算処理装置のプログラムの
フローチヤートで、以下第３図を用いて演算処理
装置１９による故障診断処理の方法について説明
する。 FIG. 3 is a flowchart of a program of the arithmetic processing unit shown in FIG. 1, and the method of fault diagnosis processing by the arithmetic processing unit 19 will be described below with reference to FIG.
まず、ステツプM1において、直流出力電圧Ｖ
と、信号Ｅを読み込む。この場合、直流出力電圧
Ｖの平均電圧VAは14ボルト程度であり、リツプ
ル電圧の振幅は数十ミリボルトであるから、VA
＝Ｖとして取り扱つてもよい。次にステツプM2
で１秒間以上続いてＥ＝０であるかどうかを調
べ、１秒間以上続いてＥ＝０であるときは、ステ
ツプM3へ進み、交流発電機８の界磁回路の故障
であると表示させる。これは、界磁コイル７また
は電圧調整器２の界磁回路（本発明ではこれを交
流発電機の界磁回路と称する。）に故障が生じる
と、直流出力電圧Ｖにリツプルがなくなり、信号
Ｅの論理が「０」のままとなるからである。 First, in step M1, the DC output voltage V
and reads signal E. In this case, the average voltage V A of the DC output voltage V is about 14 volts, and the amplitude of the ripple voltage is several tens of millivolts, so V A
=V. Next step M2
It is checked whether E=0 continues for 1 second or more, and if E=0 continues for 1 second or more, the process proceeds to step M3, where it is displayed that there is a failure in the field circuit of the alternator 8. This means that when a failure occurs in the field coil 7 or the field circuit of the voltage regulator 2 (in the present invention, this is referred to as the field circuit of the alternator), there is no ripple in the DC output voltage V, and the signal E This is because the logic remains "0".
ステツプM2でＥ≠０のときは、ステツプM4へ
進み、信号Ｅの矩形波50個（この数は任意に定め
てよい。）の周期Tk（ｋ＝１〜50）を順次計数し、
ステツプM5で周期T1〜T50がすべて等しいか否
かを調べ、Tk≠Tk-1の部分があるときは、ステ
ツプM6へ進み、整流器１５が故障であると表示
させる。これは、整流素子９〜14のうちのどれ
か、または、発電コイル４〜６のうちどれかが故
障した場合、リツプルは第２図ａのＡ，Ｂで示す
両波形を含むことになり、このためTk≠＝Tk-1
となる部分が生ずるから、周期が互いに等しくな
い部分があるときには整流器等の故障であるとす
る。 If E≠0 in step M2, proceed to step M4, and sequentially count the periods Tk (k=1 to 50) of 50 rectangular waves (this number may be arbitrarily determined) of the signal E.
In step M5, it is checked whether the periods T 1 to T 50 are all equal, and if there is a portion where T k ≠T k-1 , the process advances to step M 6 to display that the rectifier 15 is malfunctioning. This means that if any of the rectifying elements 9 to 14 or any of the generating coils 4 to 6 fails, the ripple will include both waveforms shown by A and B in Figure 2a. Therefore, T k ≠=T k-1
Therefore, if there are parts with unequal periods, it is assumed that there is a failure in the rectifier or the like.
また、ステツプM5において、Tk＝Tk-1のとき
は、ステツプM7へ進み、平均電圧VAが基準値
（例えば13〜15ボルト）範囲内にあるかどうかを
調べ、基準値範囲内にないときは、ステツプM8
で電圧調整器２が不良であることを表示し、基準
値範囲内にあるときは、ステツプM9ですべて故
障なしの表示を行い、このプログラムを終了す
る。 Also, in step M5, when T k = T k-1 , the process proceeds to step M7, where it is checked whether the average voltage V A is within the reference value range (for example, 13 to 15 volts), and whether it is within the reference value range. If not, step M8
If the voltage regulator 2 is defective, it is displayed that the voltage regulator 2 is defective, and if it is within the reference value range, a message indicating that there is no failure is displayed in step M9, and this program is terminated.
上記した本発明の実施例によれば、従来のよう
に自動車毎のリツプル数の基準値を必要とせず、
しかも、演算処理装置１９に充電装置３の直流出
力電圧Ｖとこの電圧Ｖのリツプルの周期に対応す
る矩形波信号Ｅを取り込み、プログラム処理によ
つて故障個所を判定して表示させるようにしたの
で、どんな自動車の充電系統でも各部の故障を容
易に診断することができる。 According to the embodiment of the present invention described above, there is no need for a reference value for the number of ripples for each vehicle as in the past;
Moreover, the DC output voltage V of the charging device 3 and the rectangular wave signal E corresponding to the ripple cycle of this voltage V are input into the arithmetic processing unit 19, and the fault location is determined and displayed through program processing. , it is possible to easily diagnose failures in each part of any vehicle's charging system.
以上説明したように、本発明によれば、どんな
自動車の充電系統でも各部の故障を容易に診断で
きるという効果がある。 As described above, according to the present invention, it is possible to easily diagnose failures in various parts of the charging system of any vehicle.
第１図は本発明の方法の一実施例を説明するた
めの充電系統診断装置の一例を示す回路図、第２
図は第１図の各部信号波形図、第３図は第１図の
演算処理装置のプログラムの一例を示すフローチ
ヤートである。
１……蓄電池、２……電圧調整器、３……充電
装置、４〜６……発電コイル、７……界磁コイ
ル、８……交流発電機、９〜１４……整流素子、
１５……整流器、１９……演算処理装置、２０…
…コンデンサ、２１……増幅器、２２……比較
器。
FIG. 1 is a circuit diagram showing an example of a charging system diagnostic device for explaining an embodiment of the method of the present invention, and FIG.
This figure is a signal waveform diagram of each part of FIG. 1, and FIG. 3 is a flowchart showing an example of a program of the arithmetic processing device of FIG. 1. DESCRIPTION OF SYMBOLS 1... Storage battery, 2... Voltage regulator, 3... Charging device, 4-6... Generator coil, 7... Field coil, 8... Alternating current generator, 9-14... Rectifying element,
15... Rectifier, 19... Arithmetic processing unit, 20...
...Capacitor, 21...Amplifier, 22...Comparator.
Claims (1)
池を充電する自動車の充電系統の故障を診断する
ときに、前記充電系統の直流出力電圧と該出力電
圧の交流成分を矩形波に変換した信号とを演算処
理装置に取り込み、該演算処理装置で前記信号の
有無を判定して前記交流発電機の界磁回路の故障
を診断し、前記信号の周期が所定時間一定である
か否かを判定して前記交流発電機の出力を整流す
る整流器の故障を診断し、前記出力電圧の平均値
があらかじめ設定した基準電圧の範囲内にあるか
否かを判定して前記出力電圧を調整する電圧調整
器の故障を診断することを特徴とする自動車の充
電系統の診断方法。1. When diagnosing a failure in a car charging system that rectifies the output of an alternator and charges a storage battery with DC output, a signal obtained by converting the DC output voltage of the charging system and the AC component of the output voltage into a rectangular wave. is input into an arithmetic processing device, the arithmetic processing device determines the presence or absence of the signal to diagnose a failure in the field circuit of the alternator, and determines whether the period of the signal is constant for a predetermined period of time. voltage adjustment that adjusts the output voltage by diagnosing a failure in a rectifier that rectifies the output of the alternator, and determining whether the average value of the output voltage is within a preset reference voltage range; A method for diagnosing a charging system of an automobile, characterized by diagnosing a failure of a device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14914679A JPS5672358A (en) | 1979-11-16 | 1979-11-16 | Diagnostic method of charging system of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14914679A JPS5672358A (en) | 1979-11-16 | 1979-11-16 | Diagnostic method of charging system of car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5672358A JPS5672358A (en) | 1981-06-16 |
| JPS6321868B2 true JPS6321868B2 (en) | 1988-05-09 |
Family
ID=15468769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14914679A Granted JPS5672358A (en) | 1979-11-16 | 1979-11-16 | Diagnostic method of charging system of car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5672358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03125272U (en) * | 1990-03-30 | 1991-12-18 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3629704A (en) * | 1967-11-24 | 1971-12-21 | Carlile R Stevens | Automotive electrical system test apparatus |
-
1979
- 1979-11-16 JP JP14914679A patent/JPS5672358A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03125272U (en) * | 1990-03-30 | 1991-12-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5672358A (en) | 1981-06-16 |
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