JP2003035244A - Permanent magnet generator type igniter - Google Patents
Permanent magnet generator type igniterInfo
- Publication number
- JP2003035244A JP2003035244A JP2001223021A JP2001223021A JP2003035244A JP 2003035244 A JP2003035244 A JP 2003035244A JP 2001223021 A JP2001223021 A JP 2001223021A JP 2001223021 A JP2001223021 A JP 2001223021A JP 2003035244 A JP2003035244 A JP 2003035244A
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- rotor
- rotation sensor
- engine
- protrusion
- 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
- F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
- F02P1/08—Layout of circuits
- F02P1/083—Layout of circuits for generating sparks by opening or closing a coil circuit
-
- 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
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
- F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、磁石発電機を電源
とする点火装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition device using a magnet generator as a power source.
【０００２】[0002]
【従来の技術】内燃機関（以下、「内燃機関」をエンジ
ンという）と同期して永久磁石を有する回転子が回転す
ることにより、発電コイルに交流電圧が発生する磁石発
電機が知られている。エンジンの点火装置では、例えば
磁石発電機が発生する交流電圧をコンデンサが充電し、
半導体スイッチ等でコンデンサの放電をスイッチングす
ることにより高圧コイルが高電圧を発生し、この高電圧
を点火プラグに加えて火花放電させ燃料に点火してい
る。このような磁石発電機式点火装置を図３に示す。2. Description of the Related Art There is known a magnet generator in which an alternating voltage is generated in a generator coil by rotating a rotor having a permanent magnet in synchronization with an internal combustion engine (hereinafter, "internal combustion engine" is called an engine). . In the engine ignition device, for example, the capacitor charges the AC voltage generated by the magnet generator,
The high voltage coil generates a high voltage by switching the discharge of the capacitor with a semiconductor switch or the like, and this high voltage is applied to the spark plug to cause spark discharge to ignite the fuel. Such a magnet generator type ignition device is shown in FIG.
【０００３】回転子１００の外周に、回転方向の長さが
異なる突起１０１、１０２が設置されている。回転セン
サ１１０は、回転子１００の回転により突起１０１、１
０２が通過すると突起１０１、１０２の回転方向両端で
検出信号を出力する。波形成形回路１１１は回転センサ
１１０が出力する検出信号から回転方向の突起の長さに
合わせ図４に示すパルス信号をマイクロコンピュータ
（以下、「マイクロコンピュータ」をマイコンという）
１１２に送出する。突起１０１、１０２の回転方向の長
さが異なるので、エンジンの回転が正転時および逆転時
においてＴ１とＴ３の長さは異なっている。突起の１０
１と突起１０２との間隔Ｔ２は、Ｔ１とＴ３の間であ
る。マイコン１１２はＴ１とＴ２とＴ３との大小関係を
判定することにより、エンジンの正転または逆転を検出
する。例えば、Ｔ１＜Ｔ２＜Ｔ３またはＴ１＜Ｔ３また
はＴ２＜Ｔ３の条件で正転と判定し、これ以外の条件で
逆転と判定する。正転の場合はエンジンに点火し、逆転
の場合はエンジンへの点火を禁止する。エンジン回転の
逆転は、エンジンが停止する直前等のエンジン回転数が
低いときに生じしやすい。Protrusions 101 and 102 having different lengths in the rotational direction are provided on the outer periphery of the rotor 100. The rotation sensor 110 causes the protrusions 101, 1 to rotate when the rotor 100 rotates.
When 02 passes, detection signals are output at both ends of the protrusions 101 and 102 in the rotation direction. The waveform shaping circuit 111 matches the pulse signal shown in FIG. 4 from the detection signal output from the rotation sensor 110 to the length of the protrusion in the rotation direction by a microcomputer (hereinafter, "microcomputer" is referred to as a microcomputer).
To 112. Since the protrusions 101 and 102 have different lengths in the rotation direction, the lengths of T1 and T3 are different when the engine rotates in the normal rotation and in the reverse rotation. 10 of the protrusion
The interval T2 between 1 and the protrusion 102 is between T1 and T3. The microcomputer 112 detects the normal rotation or the reverse rotation of the engine by determining the magnitude relationship among T1, T2, and T3. For example, normal rotation is determined under the conditions of T1 <T2 <T3 or T1 <T3 or T2 <T3, and reverse rotation is determined under other conditions. The engine is ignited in the forward rotation, and the engine is prohibited in the reverse rotation. Reverse rotation of the engine rotation is likely to occur when the engine rotation speed is low immediately before the engine stops.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、図３に
示すように回転センサ１１０に突起１０２がちょうど向
き合っているときにエンジンが逆転すると、図５に示す
ように、逆転直後の波形が正転時の波形と等しくなり、
エンジンの逆転を検出できない。したがって、エンジン
の回転が逆転した状態で少なくとも１回点火プラグが点
火する。本発明の目的は、回転子の回転位置に関わら
ず、エンジンの回転が逆転するとエンジンの点火を確実
に防止する磁石発電機式点火装置を提供することにあ
る。However, when the engine reverses when the protrusion 102 is just facing the rotation sensor 110 as shown in FIG. 3, when the waveform immediately after the reverse rotation is normal as shown in FIG. Becomes equal to the waveform of
The reverse rotation of the engine cannot be detected. Therefore, the spark plug ignites at least once in the state where the engine rotation is reversed. An object of the present invention is to provide a magnet-generator ignition device that reliably prevents engine ignition when engine rotation reverses regardless of the rotational position of the rotor.
【０００５】[0005]
【課題を解決するための手段】本発明の請求項１記載の
磁石発電機式点火装置によると、回転子が正転すると
き、回転センサは、発電コイルが発生する交流電圧が一
方の極性のときに突起を検出し、回転子が逆転すると
き、回転センサは、発電コイルが発生する交流電圧が他
方の極性のときに突起を検出する。そして、発電コイル
が発生する交流電圧の他方の極性の範囲内で回転センサ
が検出する突起の検出信号を選択手段が無効にすること
により、回転子の回転位置に関わらず、エンジンの回転
が逆転したときにエンジンが点火することを防止でき
る。回転子が正転するとき、発電コイルが発生する交流
電圧が一方の極性のときに回転センサが突起を検出する
ように突起の回転方向位置ならびに突起の回転方向長さ
を決定することは容易である。According to the magnet generator-type ignition device of the first aspect of the present invention, when the rotor rotates in the forward direction, the rotation sensor is configured such that the alternating voltage generated by the generating coil has one polarity. When the rotor is rotated reversely, the rotation sensor detects the protrusion when the alternating voltage generated by the generator coil has the other polarity. Then, the selection means invalidates the detection signal of the protrusion detected by the rotation sensor within the range of the other polarity of the alternating voltage generated by the generator coil, so that the rotation of the engine reverses regardless of the rotation position of the rotor. The engine can be prevented from igniting when When the rotor rotates in the normal direction, it is easy to determine the rotation direction position of the protrusion and the rotation direction length of the protrusion so that the rotation sensor detects the protrusion when the alternating voltage generated by the generator coil has one polarity. is there.
【０００６】また、回転方向に離れて２個の突起を設置
しているので、エンジン正転時において回転方向前方に
位置している突起が１回転するのに要する時間からエン
ジン回転数を算出し、さらに、２個の突起を検出する間
隔からエンジンの回転変動を算出し、エンジン回転数を
補正できる。Further, since the two protrusions are installed apart from each other in the rotation direction, the engine rotation speed is calculated from the time required for the protrusion located in the front direction of rotation to make one rotation during forward rotation of the engine. Further, it is possible to correct the engine speed by calculating the engine rotation fluctuation from the interval at which the two protrusions are detected.
【０００７】通常、エンジン始動時のようにエンジン回
転数が低い場合、エンジンに点火するタイミングは突起
の検出タイミングに合わせて固定される。一方、エンジ
ンが中速または高速で運転しているとき、固定点火では
なく、突起を検出したタイミングでエンジンの回転数に
応じたカウンタ値をセットし、カウンタ値が０になった
タイミングでエンジンに点火する演算点火を行うことが
一般的である。本発明の請求項２記載の磁石発電機式点
火装置によると、２個の突起のうち、正転時に回転方向
後方に位置している突起は、正転時に回転方向前方に位
置している突起よりも回転方向の長さが長い。Normally, when the engine speed is low as when starting the engine, the timing of igniting the engine is fixed in accordance with the detection timing of the protrusion. On the other hand, when the engine is operating at medium or high speed, the counter value corresponding to the engine speed is set at the timing when the protrusion is detected instead of the fixed ignition, and the engine is set at the timing when the counter value becomes 0. It is common to perform an arithmetic ignition to ignite. According to the magnet generator-type ignition device of the second aspect of the present invention, of the two projections, the projection located rearward in the rotational direction during normal rotation is the projection located forward in the rotational direction during normal rotation. The length in the direction of rotation is longer than that.
【０００８】回転数が低い場合、長い突起の回転方向後
方端を回転センサが検出するタイミングで固定点火を行
う。回転数が高い場合、長い突起の回転方向前方端を回
転センサが検出するタイミングでカウンタ値をセットし
て演算点火のカウントを開始し、長い突起の回転方向後
方端を回転センサが検出しても固定点火を無効にする。
本発明の請求項２記載の磁石発電機式点火装置では、回
転子が正転するとき回転方向後方に位置する突起の回転
方向長さが回転方向前方に位置する突起よりも長いの
で、長い突起の回転方向前方端を回転センサが検出する
タイミングで回転変動を含めてエンジン回転数を算出
し、回転方向後方端を回転センサが検出する前に、固定
点火か演算点火かを決定できる。When the rotation speed is low, fixed ignition is performed at the timing when the rotation sensor detects the rear end of the long protrusion in the rotation direction. When the rotation speed is high, the counter value is set at the timing when the rotation sensor detects the front end of the long protrusion in the rotation direction, and counting of the calculation ignition is started, and even if the rotation sensor detects the rear end of the long protrusion in the rotation direction. Disable fixed ignition.
In the magnet generator-type ignition device according to claim 2 of the present invention, when the rotor rotates in the normal direction, the length of the protrusion located rearward in the rotational direction is longer than the protrusion located forward in the rotational direction. It is possible to determine the engine ignition speed by including the fluctuation in rotation at the timing when the rotation sensor detects the front end of the rotation direction, and to determine the fixed ignition or the calculation ignition before the rotation sensor detects the rear end of the rotation direction.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を示す
実施例を図に基づいて説明する。本発明の一実施例によ
る磁石発電機式点火装置を図１に示す。点火装置１は、
磁石発電機１０、回転センサ２０および選択手段として
のＡＮＤ回路３０を有する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a magnet generator type ignition device according to an embodiment of the present invention. The ignition device 1 is
It has a magnet generator 10, a rotation sensor 20, and an AND circuit 30 as a selection means.
【００１０】磁石発電機１０は、回転子１１、図示しな
い固定子、ならびに固定子に設置した発電コイル１４を
有している。回転子１１はクランクシャフトとともに回
転し、クランクシャフトが１回転すると同様に１回転す
る。回転子１１には図示しない永久磁石が設置されてい
る。回転子１１が回転することにより、図２に示すよう
に発電コイル１４に正負の極性を有する交流電圧が発生
する。発電コイル１４が発生した交流電圧は図示しない
コンデンサを充電する。充電されたコンデンサが放電す
るときに流れる電流が高圧コイルの１次コイル側を流れ
ることにより、高圧コイルの２次コイル側に点火プラグ
に加える高電圧が発生する。回転子１１は、回転方向に
離れて外周に設置されている突起１２、１３を有してい
る。突起１３は、回転子１１の正転時に突起１２の後方
に位置し、突起１２よりも回転方向の長さが長い。The magnet generator 10 has a rotor 11, a stator (not shown), and a magneto coil 14 installed on the stator. The rotor 11 rotates together with the crankshaft, and once the crankshaft makes one rotation, it also makes one rotation. A permanent magnet (not shown) is installed on the rotor 11. As the rotor 11 rotates, an alternating voltage having positive and negative polarities is generated in the magneto coil 14 as shown in FIG. The alternating voltage generated by the magneto coil 14 charges a capacitor (not shown). The current flowing when the charged capacitor discharges flows through the primary coil side of the high voltage coil, so that a high voltage applied to the spark plug is generated on the secondary coil side of the high voltage coil. The rotor 11 has protrusions 12 and 13 which are provided on the outer periphery thereof so as to be separated from each other in the rotation direction. The protrusion 13 is located behind the protrusion 12 when the rotor 11 rotates in the normal direction, and has a longer length in the rotation direction than the protrusion 12.
【００１１】回転センサ２０は、例えばマグネットピッ
クアップを用いており、図２に示すように、各突起の回
転方向前方端または回転方向後方端を検出し、検出信号
としてのセンサ信号を出力する。回転センサ２０とし
て、ホール素子、ＭＲＥ素子等を用いてもよい。The rotation sensor 20 uses, for example, a magnetic pickup, and as shown in FIG. 2, detects the front end in the rotational direction or the rear end in the rotational direction of each protrusion and outputs a sensor signal as a detection signal. A Hall element, an MRE element, or the like may be used as the rotation sensor 20.
【００１２】ＡＮＤ回路段３０は、発電コイル１４が出
力する交流電圧の極性が正電圧であり、かつ回転センサ
２０の検出信号の出力電圧が正電圧のときに回転センサ
２０の検出信号を有効にする。高圧コイルの１次コイル
側に接続するスイッチング素子として例えば半導体スイ
ッチを回転センサ２０の検出信号がオンにすることによ
りコンデンサを放電させ、高圧コイルの２次コイル側に
高電圧を発生させる。すると、点火プラグに高電圧が加
わり点火プラグが火花放電を起こすので、エンジン内の
燃料が点火する。発電コイル１４が発生する交流電圧の
極性が負電圧のとき、回転センサ２０の検出信号は無効
になる。したがって、点火プラグに高電圧は加わらずエ
ンジンは点火しない。本実施例ではＡＮＤ回路３０で選
択手段を構成しているが、前述したＡＮＤ回路３０の機
能を実現するのであれば、どのような回路で選択手段を
構成してもよいし、マイクロコンピュータを用いてもよ
い。The AND circuit stage 30 validates the detection signal of the rotation sensor 20 when the polarity of the AC voltage output from the generator coil 14 is positive and the output voltage of the detection signal of the rotation sensor 20 is positive. To do. For example, a semiconductor switch serving as a switching element connected to the primary coil side of the high voltage coil turns on the detection signal of the rotation sensor 20 to discharge the capacitor and generate a high voltage on the secondary coil side of the high voltage coil. Then, a high voltage is applied to the spark plug and a spark discharge is generated in the spark plug, so that the fuel in the engine is ignited. When the polarity of the AC voltage generated by the magneto coil 14 is a negative voltage, the detection signal of the rotation sensor 20 becomes invalid. Therefore, no high voltage is applied to the spark plug and the engine does not ignite. Although the AND circuit 30 constitutes the selecting means in this embodiment, the selecting means may be constituted by any circuit as long as the function of the AND circuit 30 described above is realized, and a microcomputer is used. May be.
【００１３】エンジン正転時、回転方向前方に位置する
突起１２が１回転するために要する時間から図示しない
制御手段としてのマイコン等でエンジン回転数を算出す
る。そして、突起１２の回転方向後方端１２ａを検出し
てから突起１３の回転方向前方端１３ａを検出するまで
に要する時間から、エンジンの回転変動を検出し、算出
したエンジン回転数を補正する。At the time of normal rotation of the engine, the engine speed is calculated by a microcomputer (not shown) as a control means or the like from the time required for the projection 12 located at the front in the rotation direction to make one rotation. Then, from the time required from the detection of the rear end 12a in the rotational direction of the protrusion 12 to the detection of the front end 13a of the protrusion 13 in the rotational direction, the rotational fluctuation of the engine is detected and the calculated engine rotational speed is corrected.
【００１４】エンジン始動時のように回転数が低い場
合、突起１３の回転方向後方端１３ｂを検出したタイミ
ングで固定点火をする。突起１３の回転方向前方端１３
ａを検出し、回転変動を含んで算出したエンジン回転数
が所定値以上である場合、エンジン回転数に応じて演算
点火用のカウンタ値をセットし、カウンタ値が０になる
タイミングでエンジンに点火する。突起１３の回転方向
の長さが長いので、回転方向前方端１３ａを検出してか
ら回転方向後方端１３ｂを検出する前に、回転変動を含
んで算出したエンジン回転数により固定点火か演算点火
かを判定できる。したがって、演算点火の場合、回転方
向後方端１３ｂを検出する前に固定点火を禁止すること
ができる。When the engine speed is low, such as when the engine is started, fixed ignition is performed at the timing when the rear end 13b of the protrusion 13 in the rotational direction is detected. The front end 13 of the protrusion 13 in the rotational direction
When the engine speed calculated by detecting a and including the rotation fluctuation is equal to or higher than a predetermined value, a counter value for calculation ignition is set according to the engine speed, and the engine is ignited at the timing when the counter value becomes zero. To do. Since the length of the protrusion 13 in the rotation direction is long, before the detection of the rotation direction front end 13a and before the detection of the rotation direction rear end 13b, whether the fixed ignition or the calculation ignition is performed depending on the engine speed calculated including the rotation fluctuation. Can be determined. Therefore, in the case of calculation ignition, the fixed ignition can be prohibited before the rear end 13b in the rotational direction is detected.
【００１５】突起１２、１３の回転方向位置と発電コイ
ル１４の出力電圧の極性との関係は、図２に示すよう
に、回転子１１が正転しているとき、発電コイル１４の
出力電圧が正電圧の範囲内で回転センサ２０の突起検出
信号が出力されるように設定されている。回転子１１が
正転しているとき、発電コイル１４の出力電圧が正電圧
であり、かつ回転センサ２０の突起検出信号が正電圧の
ときに、点火プラグに高電圧が加わりエンジンが点火す
る。As shown in FIG. 2, the relationship between the positions of the protrusions 12 and 13 in the direction of rotation and the polarity of the output voltage of the magneto coil 14 indicates that when the rotor 11 is rotating normally, the output voltage of the magneto coil 14 is The protrusion detection signal of the rotation sensor 20 is set to be output within the range of the positive voltage. When the rotor 11 is rotating normally, when the output voltage of the magneto coil 14 is a positive voltage and the protrusion detection signal of the rotation sensor 20 is a positive voltage, a high voltage is applied to the spark plug and the engine is ignited.
【００１６】エンジンの逆転により回転子１１の回転が
逆転すると、発電コイル１４の出力電圧の正負の極性が
反転する。したがって、回転センサ２０は発電コイル１
４の出力電圧が負電圧のときに突起１２、１３を検出す
る。このとき、回転センサ２０の検出信号は無効にな
り、点火プラグに高電圧は加わらずエンジンは点火しな
い。When the rotation of the rotor 11 is reversed by the reverse rotation of the engine, the positive and negative polarities of the output voltage of the magneto coil 14 are reversed. Therefore, the rotation sensor 20 has the generator coil 1
When the output voltage of 4 is a negative voltage, the protrusions 12 and 13 are detected. At this time, the detection signal of the rotation sensor 20 becomes invalid, the high voltage is not applied to the spark plug, and the engine does not ignite.
【００１７】本発明の上記実施例では、回転子１１が正
転するとき、発電コイル１４が出力する交流電圧の正電
圧の範囲内で突起１２、１３を検出し、回転子１１が逆
転するとき、発電コイル１４が出力する交流電圧の負電
圧の範囲内で突起１２、１３を検出するように、突起１
２、１３の位置および回転方向長さを決定している。回
転子１１の回転がどのような回転位置で逆転しても、回
転子１１が逆転するときの突起１２、１３の検出信号を
無効にし、エンジンの点火を防止できる。また、回転子
１１が正転するとき、発電コイル１４が出力する交流電
圧の正電圧の範囲内で突起１２、１３を検出し、回転子
１１が逆転するとき、発電コイル１４が出力する交流電
圧の負電圧の範囲内で突起１２、１３を検出するよう
に、突起１２、１３の回転方向位置および回転方向長さ
を決定することは容易である。In the above-described embodiment of the present invention, when the rotor 11 rotates in the normal direction, the protrusions 12 and 13 are detected within the range of the positive voltage of the alternating voltage output by the generator coil 14, and when the rotor 11 rotates in the reverse direction. , So that the protrusions 12 and 13 are detected within the range of the negative voltage of the alternating voltage output by the magneto coil 14.
The positions of 2 and 13 and the length in the rotation direction are determined. Even if the rotation of the rotor 11 is reversed at any rotation position, the detection signals of the protrusions 12 and 13 when the rotor 11 is reversed can be invalidated and the ignition of the engine can be prevented. Further, when the rotor 11 rotates in the forward direction, the protrusions 12 and 13 are detected within the range of the positive voltage of the AC voltage output by the generator coil 14, and when the rotor 11 rotates in the reverse direction, the AC voltage output by the generator coil 14 is detected. It is easy to determine the rotational position and the rotational length of the protrusions 12 and 13 so that the protrusions 12 and 13 are detected within the range of the negative voltage of.
【図１】本発明の一実施例による磁石発電機式点火装置
を示す模式的構成図である。FIG. 1 is a schematic configuration diagram showing a magnet generator type ignition device according to an embodiment of the present invention.
【図２】本実施例による正転時および逆転時におけるセ
ンサ出力および発電機出力を示すタイムチャートであ
る。FIG. 2 is a time chart showing sensor output and generator output during forward rotation and reverse rotation according to the present embodiment.
【図３】従来例による磁石発電機式点火装置を示す模式
的構成図である。FIG. 3 is a schematic configuration diagram showing a magnet generator type ignition device according to a conventional example.
【図４】従来例による正転時および逆転時におけるマイ
コン入力信号を示すタイムチャートである。FIG. 4 is a time chart showing a microcomputer input signal during forward rotation and reverse rotation according to a conventional example.
【図５】突起上でエンジンが逆転したときの従来例のマ
イコン入力信号を示すタイムチャートである。FIG. 5 is a time chart showing a microcomputer input signal of a conventional example when the engine reversely rotates on the protrusion.
１ 磁石発電機式点火装置 １０ 磁石発電機 １１ 回転子 １２、１３ 突起 １４ 発電コイル ２０ 回転センサ ３０ ＡＮＤ回路（選択手段） 1 Magnet generator type ignition device 10 Magnet generator 11 rotor 12, 13 protrusion 14 generator coil 20 rotation sensor 30 AND circuit (selection means)
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｐ 9/00 Ｈ０２Ｐ 9/00 Ｂ (72)発明者 小銭 克彦 愛知県刈谷市昭和町１丁目１番地 株式会 社デンソー内 Ｆターム(参考） 3G019 CB29 GA01 GA05 HA07 HA13 3G092 BA10 CB04 EA14 FA33 GA20 HC08X HE01Z HE03Z 5H590 AB00 AB17 CA07 CA23 CC02 CC22 CE05 DD32 EB02 FA05 GB04 GB05 HA02 JA02 5H621 BB08 GA05 HH04 JK02 JK14 PP07 Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H02P 9/00 H02P 9/00 B (72) Inventor Katsuhiko Kosen 1-1, Showa-cho, Kariya city, Aichi DENSO CORPORATION Inner F term (reference) 3G019 CB29 GA01 GA05 HA07 HA13 3G092 BA10 CB04 EA14 FA33 GA20 HC08X HE01Z HE03Z 5H590 AB00 AB17 CA07 CA23 CC02 CC22 CE05 DD32 EB02 FA05 GB04 GB05 HA02 JA02 5H621 BB08 GA05 HH04 JK02 JK02 JK02 JK02 JK02 JK02 JK02 JK02 JK02
Claims (2)
とにより発電コイルから交流電圧を発生する磁石発電機
を電源とする点火装置において、 前記回転子は回転方向に離れて設置されている２個の突
起を外周に有し、 前記回転子の外周に前記回転子から離れて設置され、前
記回転子の回転により前記突起が通過するとき前記突起
を検出する検出信号を出力する回転センサと、 前記発電コイルが発生する交流電圧が一方の極性である
とき前記回転センサが出力する前記突起の検出信号を有
効にし、前記発電コイルが発生する交流電圧が他方の極
性であるとき前記回転センサが出力する前記突起の検出
信号を無効にする選択手段とを備え、 前記回転子が正転するとき、前記回転センサは、前記発
電コイルが発生する交流電圧が一方の極性のときに前記
突起を検出し、前記回転子が逆転するとき、前記回転セ
ンサは、前記発電コイルが発生する交流電圧が他方の極
性のときに前記突起を検出することを特徴とする磁石発
電機式点火装置。1. An ignition device using, as a power source, a magneto-generator that generates an AC voltage from a generator coil when a rotor rotates in synchronization with an internal combustion engine, wherein the rotor is installed separately in a rotational direction. A rotation sensor that has two protrusions on its outer periphery, is installed on the outer periphery of the rotor away from the rotor, and outputs a detection signal for detecting the protrusion when the protrusion passes by the rotation of the rotor. When the AC voltage generated by the generator coil has one polarity, the detection signal of the protrusion output by the rotation sensor is validated, and when the AC voltage generated by the generator coil has the other polarity, the rotation sensor is Selecting means for invalidating the detection signal of the projection to be output, and when the rotor rotates in the normal direction, the rotation sensor is configured such that the alternating voltage generated by the magneto coil has one polarity. When the rotor is rotated in the reverse direction, the rotation sensor detects the protrusion when the alternating voltage generated by the generator coil has the other polarity. apparatus.
向後方に位置している突起は、正転時に回転方向前方に
位置している突起よりも回転方向の長さが長いことを特
徴とする請求項１記載の磁石発電機式点火装置。2. The projection, which is located rearward in the rotational direction during normal rotation, of the two projections is longer in the rotational direction than the projection located forward in the rotational direction during normal rotation. The magnet generator-type ignition device according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001223021A JP4731752B2 (en) | 2001-07-24 | 2001-07-24 | Magnet generator ignition device |
| DE2002133416 DE10233416B4 (en) | 2001-07-24 | 2002-07-23 | Ignition system with a permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001223021A JP4731752B2 (en) | 2001-07-24 | 2001-07-24 | Magnet generator ignition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003035244A true JP2003035244A (en) | 2003-02-07 |
| JP4731752B2 JP4731752B2 (en) | 2011-07-27 |
Family
ID=19056419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001223021A Expired - Lifetime JP4731752B2 (en) | 2001-07-24 | 2001-07-24 | Magnet generator ignition device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4731752B2 (en) |
| DE (1) | DE10233416B4 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009057828A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| JP2009057829A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| JP2009057827A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| JP2010209759A (en) * | 2009-03-09 | 2010-09-24 | Keihin Corp | Control device for internal combustion engine |
| JP2010209760A (en) * | 2009-03-09 | 2010-09-24 | Keihin Corp | Control device for internal combustion engine |
| CN102400832A (en) * | 2011-10-26 | 2012-04-04 | 成都市翻鑫家科技有限公司 | Magnetic pulse ignition signal generator |
| US8181637B2 (en) | 2007-08-29 | 2012-05-22 | Keihin Corporation | Control apparatus for internal combustion engine |
| JP2014202179A (en) * | 2013-04-09 | 2014-10-27 | トヨタ自動車株式会社 | Vehicle start determination device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4520923B2 (en) * | 2005-09-28 | 2010-08-11 | 本田技研工業株式会社 | Engine starter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000170634A (en) * | 1998-12-07 | 2000-06-20 | Yamaha Motor Co Ltd | Ignition device of internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2205722C2 (en) * | 1972-02-08 | 1982-04-08 | Robert Bosch Gmbh, 7000 Stuttgart | Condenser ignition system for internal combustion engines |
| JP2850616B2 (en) * | 1992-01-09 | 1999-01-27 | 国産電機株式会社 | Ignition device for internal combustion engine |
| JP3142436B2 (en) * | 1994-02-18 | 2001-03-07 | 三菱電機株式会社 | Internal combustion engine ignition control device |
| AUPN667595A0 (en) * | 1995-11-20 | 1995-12-14 | Orbital Engine Company (Australia) Proprietary Limited | Electronic position and speed sensing device |
| JP3421211B2 (en) * | 1997-02-03 | 2003-06-30 | 三菱電機株式会社 | Ignition control device for internal combustion engine |
-
2001
- 2001-07-24 JP JP2001223021A patent/JP4731752B2/en not_active Expired - Lifetime
-
2002
- 2002-07-23 DE DE2002133416 patent/DE10233416B4/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000170634A (en) * | 1998-12-07 | 2000-06-20 | Yamaha Motor Co Ltd | Ignition device of internal combustion engine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009057828A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| JP2009057829A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| JP2009057827A (en) * | 2007-08-29 | 2009-03-19 | Keihin Corp | Internal combustion engine control device |
| US8181637B2 (en) | 2007-08-29 | 2012-05-22 | Keihin Corporation | Control apparatus for internal combustion engine |
| JP2010209759A (en) * | 2009-03-09 | 2010-09-24 | Keihin Corp | Control device for internal combustion engine |
| JP2010209760A (en) * | 2009-03-09 | 2010-09-24 | Keihin Corp | Control device for internal combustion engine |
| CN102400832A (en) * | 2011-10-26 | 2012-04-04 | 成都市翻鑫家科技有限公司 | Magnetic pulse ignition signal generator |
| JP2014202179A (en) * | 2013-04-09 | 2014-10-27 | トヨタ自動車株式会社 | Vehicle start determination device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10233416B4 (en) | 2013-07-11 |
| DE10233416A1 (en) | 2003-03-13 |
| JP4731752B2 (en) | 2011-07-27 |
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