JP3909235B2 - Turbocharger motor position control device and motor device control method - Google Patents
Turbocharger motor position control device and motor device control method Download PDFInfo
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Description
【０００１】
【発明の属する技術分野】
本発明はターボチャージャのモータ位置制御装置及びモータ装置制御方法に関する。
【０００２】
【従来の技術】
モータ位置を制御する際にモータの位置検出用にモータの回転角度に応じて抵抗値の変化するポテンショメータをモータの出力軸に直結させてモータの絶対位置をはかる方法がある、この場合モータの絶対位置は比較的容易に検出することは可能であるが、ポテンショメータが接触式の場合耐久性がないことやこれを防止するために非接触式のポテンショメータを使うのが一般的であるがこのポテンショメータは高価であり、且つ回転角度に対する出力の直線性が悪い場合があり補正が必要になったりする。
【０００３】
この対策として、ポテンショメータの代りに直線性のよいインクリメンタリ方式のエンコーダを用いる場合がある。
【０００４】
しかしながら、インクリメンタリ方式のエンコーダを用いる場合絶対位置の検出ができないので、動作開始時等に動作範囲内で一方向へ回しきる等の処理を行い、少なくとも一方向側の基準位置を決めた後にエンコーダのパルス数をカウントして、現在位置の検出を行う方法がとられていた。
【０００５】
ロータリーエンコーダ装置に関して、特許第３０３９５１２号公報に記載されている。
【０００６】
【発明が解決しようとする課題】
上記のように、制御開始前に一方向にのみ位置合せを行う方法では動作範囲内で機械的摩擦の増大等により抵抗分が増大しモータがこの場所で引っかかってこの位置よりモータを動作させられなくなった場合、この位置に停止しこの位置を基準に制御をおこなうため、正確なモータの位置が検出できなくなる。
【０００７】
本発明の目的は、モータを用いた位置制御装置のモータの位置検出精度を向上させることである。
【０００８】
【課題を解決するための手段】
前記目的を達成するために、モータを制御する電子回路と、前記電子回路を外部と接続するインターフェイス回路とを備え、自動車のターボチャージャの吸入空気導入路に設けられた可変翼を開閉するモータを制御するモータ制御装置であって、前記モータの出力を前記可変翼に伝達する動力伝達機構に設けられたインクリメンタリ式のモータ回転位置検出装置の出力信号と外部から入力される目標開度信号に基づく目標位置とを比較し、両者が一致するように前記モータを制御するものにおいて、前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定する。
【０００９】
また、全閉位置への動作の後、全開位置への動作を行わせ、この間のパルスをカウントし、正常のものであるかどうかを判断する。この事により絶対位置の検出が可能であり、さらに通常制御中にこの動作を繰り返し行う事でモータ制御位置検出精度が確保でき、耐久的な劣化も判定することが可能となる。
【００１０】
【発明の実施の形態】
図１は一実施例の構成を示すものである。本実施例は、モータの出力軸に設けられたギヤを介してターボチャージャ内の翼角度を変化させ、ターボチャージャ１の加給圧を変化させるものである。
【００１１】
ウォームギヤ７にはギヤの他にモータの回転位置検出用のロータリーエンコーダ３がもうけられている。本実施例ではインクリメンタルエンコーダを２個用いている。
【００１２】
エンコーダ３には回転位置を信号に変換するためのホール素子４を設け、エンコーダの回転位置を信号に変換して制御装置５へ入力する。
【００１３】
図３には前述したエンコーダからの信号波形を示す。
【００１４】
ΦＡ信号とΦＢ信号は位相が９０度ずれており例えばΦＡの立上り又は立下がり時のΦＢの信号のレベルを見る事によりモータの回転方向がわかり、信号のパルス数を計数する事により、モータの回転位置を検出することが可能である。一方、他の制御装置６から制御装置５へターボチャージャモータ回転位置（ターボチャージャ内回転翼角度）の制御目標位置信号６ａが入力され制御装置５は制御目標位置信号６ａとモータの回転位置が等しくなるようにモータ２を駆動するための信号５ａを出力し、制御目標位置信号６ａに従ってモータ２の回転位置を制御するシステムである。
【００１５】
本実施例では制御装置５と他の制御装置６を分離しているが、両者を統合したものでも同一の機能を有する事ができる。
【００１６】
ＣＰＵ９（Central Processing Unit）,Ｉ／Ｏ８(Input／Output),Ａ／Ｄ１４（Analog to Digital Converter），ＲＡＭ１５（Random Access Memory），ＲＯＭ１６（Read Only Memory），不揮発性メモリ１７，モータドライバ１０，コミュニケーションドライバ１３から構成され、本実施例の場合Ｉ／Ｏに入力された目標開度信号１１ｂとモータの回転位置信号１１ａの値が等しくなるようにモータドライバ１０へ制御信号９ａを出力する。
【００１７】
ＣＰＵ９はＲＯＭ１６から制御演算式を読み出しＲＡＭ１５に計算値を保持する機能を有している。
【００１８】
不揮発性メモリは制御装置の電源が切れた後も上記演算データ等を保持したい場合に用いるもので、保持するデータが無い場合は設けなくてもよい。
【００１９】
また、コミュニケーションドライバ１３を介してＣＰＵが外部とデータのやり取りを行う機能も有しており、目標開度信号をコミュニケーションドライバ１３を介してＣＰＵ９へ入力しても同一の機能を持たせる事ができる。
【００２０】
この制御装置において電源投入時はモータが何処に位置しているのか不明であるため、最初に全閉方向へ動作させる。
【００２１】
全閉側はターボの加給圧が上昇する方向であり、エンジン出力は増大する方向であるため、エンジン回転中はアイドル時等スロットルが全閉状態でターボの羽を閉じ側にしても加給圧の上がりにくいモード以外には閉じ側にしにくいため、特に電源ＯＮ時に行う。
【００２２】
モータの軸に取り付けられたエンコーダからのパルス信号のカウント値は上記の動作にともない減少していく。
【００２３】
この様子を図４に示す。モータが閉じ側に移動し全閉位置に達すると、パルスカウント値は変動しなくなり、モータはロック状態となる。
【００２４】
この状態のまま一定時間変化パルスカウント値が変化しない時にこの位置が全閉位置と判断する。
【００２５】
この全閉位置検出後今度は開方向へモータを反転させる。
【００２６】
これに伴いパルスカウント値は増加していき、全開位置に達した後はパルスカウント値は増加しなくなる、この状態が一定時間継続したら全開位置と判断する。この操作の後、各々のパルスカウント値の差は本来全閉位置から全開位置の間のダイナミックレンジＣと同等になる筈であり、これが等しくない場合は異常であると判断できる。
【００２７】
ここでいう異常とはターボチャージャの経時変化による機械部の動作抵抗分の増加により全開位置と全閉位置の中間位置で動かなくなるモードであり、カウント値Ｂ−カウント値Ａ＜ダイナミックレンジＣの場合である。
【００２８】
逆にモータ駆動装置のギヤ等の山が無くなる場合等はから回り等が発生するのでカウント値Ｂ−カウント値Ａ＞ダイナミックレンジＣという関係になる。
【００２９】
以上によりインクリメンタリ方式のエンコーダを用いながら、ポテンショメータを用いた絶対位置検出が可能であり、モータ位置制御装置の故障診断等が可能になる。
【００３０】
この全閉位置への動作と全開位置への動作及びダイナミックレンジとの比較は同時に行う必要はなく、全閉動作は電源投入時、アイドリング，電源遮断時等にのみ限定し全開動作は運転性に影響を与えない限り頻繁に行う事は可能である。
【００３１】
また正常状態で且つモータの位置を全閉位置，全開位置あるいは特定の位置に設定した後に電源を遮断するようにすると、次回電源投入時のスタート位置が一義的に決まるため、一旦全閉位置への動作と全開位置への動作を実施しなくても現在位置を検出することが可能である。
【００３２】
図５はモータ位置制御装置に機械的な摩擦が増大し全閉位置と全開位置との間で引っ掛かりが発生した場合であるが、この引っ掛かりの発生した絶対位置はカウント値をモニタする事により分かるため引っ掛かりの発生した所から一旦特定位置までモータを戻した後、勢いをつけて戻し、引っ掛かりの部分を通過させる事ができ、ターボチャージャの耐久劣化による引っ掛かりの発生を防止することができる。
【００３３】
図６は通常制御中に一旦通常制御をやめ、本制御を実施している最中に通常制御に戻す必要が生じた場合の動作を示す。この場合の通常制御とは、アクセル開度やエンジン回転数に対応して行われる制御のことである。
【００３４】
全閉位置への動作が始まった後で通常制御の目的地に移動させる訳であるが通常制御と同じモータ速度で動作させると、その分目的地へ移動するまでの時間が余計にかかってしまう事になり、制御遅れが発生する。
【００３５】
本実施例ではこの制御遅れが発生しない様に通常の制御速度より早く動かして応答遅れが発生しない様にしている。
【００３６】
本実施例では、制御速度を早くしてイニシャライズ（全閉位置と全開位置の間を動作させること）を実施した後、通常制御に戻しているが、イニシャライズを途中で中断して通常制御に戻しても良い。
【００３７】
【発明の効果】
本発明によれば、モータを用いた位置制御装置のモータの位置検出精度を向上させることができる。
【図面の簡単な説明】
【図１】モータ制御装置のシステム図。
【図２】モータ制御装置のブロック図。
【図３】モータ位置検出用エンコーダの信号。
【図４】イニシャライズ処理の実施例。
【図５】エンコーダを用いたモータ位置のカウント方法。
【図６】通常時のイニシャライズ処理。
【符号の説明】
１…ターボチャージャ、１−ａ…可変翼、２…モータ、２ａ，２ｂ，２ｃ…ギヤ、３…エンコーダ、４…ホール素子、４ａ…エンコーダパルス、５…制御装置、６…他の制御装置、６ａ，１１ｂ…目標開度信号、６ｂ…通信信号、７…ウォームギヤ、８…Ｉ／Ｏ、９…ＣＰＵ、１０…モータドライバ、１１ａ…モータ回転位置信号Ｉ、１１ｃ…ＩＧＮ信号、１３…コミュニケーションドライバ、１４…Ａ／Ｄ、１５…ＲＡＭ、１６…ＲＯＭ、１７…不揮発性メモリ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a turbocharger motor position control device and a motor device control method.
[0002]
[Prior art]
When controlling the motor position, there is a method to measure the absolute position of the motor by directly connecting a potentiometer whose resistance value changes according to the rotation angle of the motor to the motor output shaft to detect the motor position. Although it is possible to detect the position relatively easily, it is common to use a non-contact type potentiometer in order to prevent the durability when the potentiometer is a contact type. It is expensive, and the linearity of the output with respect to the rotation angle may be poor, and correction is necessary.
[0003]
As a countermeasure, an incremental encoder with good linearity may be used instead of the potentiometer.
[0004]
However, since the absolute position cannot be detected when using an incremental encoder, the encoder must be rotated at least once in the operating range at the start of the operation, etc. The current position is detected by counting the number of pulses.
[0005]
The rotary encoder device is described in Japanese Patent No. 3039512.
[0006]
[Problems to be solved by the invention]
As described above, in the method of aligning in only one direction before the start of control, the resistance increases due to an increase in mechanical friction within the operating range, and the motor is caught at this location and the motor can be operated from this position. When it is lost, it stops at this position and the control is performed based on this position, so that an accurate motor position cannot be detected.
[0007]
An object of the present invention is to improve the position detection accuracy of a motor of a position control device using a motor.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, there is provided a motor comprising an electronic circuit for controlling a motor and an interface circuit for connecting the electronic circuit to the outside, and for opening and closing a variable blade provided in an intake air introduction passage of a turbocharger of an automobile. A motor control device for controlling the output signal of the incremental motor rotation position detection device provided in the power transmission mechanism for transmitting the output of the motor to the variable blade and the target opening signal input from the outside A state in which the motor is rotated in either direction of opening or closing of the variable wing, and the signal from the motor position detecting device does not change Is determined to be a fully open position or a fully closed position for a certain period of time, the motor is rotated in a direction opposite to the original direction, and the motor position All it closed or the position when the state signal from the output device does not change has continued for a certain time determines the fully open position.
[0009]
Further, after the operation to the fully closed position, the operation to the fully open position is performed, and the pulses during this period are counted to determine whether or not it is normal. This makes it possible to detect the absolute position, and by repeating this operation during normal control, the motor control position detection accuracy can be ensured and durability deterioration can also be determined.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the configuration of one embodiment. In this embodiment, the blade angle in the turbocharger is changed via a gear provided on the output shaft of the motor, and the supply pressure of the
[0011]
In addition to the gear, the worm gear 7 is provided with a
[0012]
The
[0013]
FIG. 3 shows a signal waveform from the encoder described above.
[0014]
The ΦA signal and the ΦB signal are 90 degrees out of phase. For example, by looking at the level of the ΦB signal at the rise or fall of ΦA, the rotation direction of the motor can be determined, and by counting the number of signal pulses, It is possible to detect the rotational position. On the other hand, the control target position signal 6a of the turbocharger motor rotation position (turbocharger inner rotor blade angle) is inputted from the
[0015]
In the present embodiment, the control device 5 and the
[0016]
CPU 9 (Central Processing Unit), I / O 8 (Input / Output), A / D 14 (Analog to Digital Converter), RAM 15 (Random Access Memory), ROM 16 (Read Only Memory),
[0017]
The CPU 9 has a function of reading a control arithmetic expression from the
[0018]
The non-volatile memory is used when it is desired to retain the calculation data and the like even after the control device is turned off, and may not be provided if there is no data to be retained.
[0019]
Further, the CPU also has a function of exchanging data with the outside via the
[0020]
In this control device, when the power is turned on, it is unclear where the motor is located, so it is first operated in the fully closed direction.
[0021]
The fully closed side is the direction in which the turbo boost pressure increases, and the engine output increases. Therefore, during engine rotation, even when the throttle is fully closed, such as when idling, even if the turbo wing is closed, the boost pressure Since it is difficult to move to the closed side except for the mode in which it is difficult to go up, it is performed when the power is turned on.
[0022]
The count value of the pulse signal from the encoder attached to the motor shaft decreases with the above operation.
[0023]
This is shown in FIG. When the motor moves to the closing side and reaches the fully closed position, the pulse count value does not change and the motor is locked.
[0024]
This position is determined to be the fully closed position when the change pulse count value for a certain period of time remains unchanged in this state.
[0025]
After detecting the fully closed position, the motor is reversed in the opening direction.
[0026]
Along with this, the pulse count value increases, and after reaching the fully open position, the pulse count value does not increase. If this state continues for a certain period of time, it is determined as the fully open position. After this operation, the difference between the respective pulse count values should be essentially equal to the dynamic range C between the fully closed position and the fully open position. If these are not equal, it can be determined that there is an abnormality.
[0027]
The abnormality mentioned here is a mode in which the operation resistance of the mechanical unit increases due to the change of the turbocharger over time, so that it does not move at an intermediate position between the fully open position and the fully closed position. When count value B−count value A <dynamic range C It is.
[0028]
On the contrary, when there is no crest of the gear of the motor driving device, etc., the rotation occurs, so that the relationship of count value B−count value A> dynamic range C is established.
[0029]
As described above, absolute position detection using a potentiometer can be performed while using an incremental encoder, and failure diagnosis of the motor position control device can be performed.
[0030]
It is not necessary to compare the operation to the fully closed position, the operation to the fully open position, and the dynamic range at the same time. The fully closed operation is limited to only when the power is turned on, idling, and when the power is turned off. It can be done frequently as long as there is no impact.
[0031]
In addition, if the power is turned off after setting the motor position to the fully closed position, fully open position, or a specific position in the normal state, the start position at the next power-on will be uniquely determined. It is possible to detect the current position without carrying out the operation and the operation to the fully open position.
[0032]
FIG. 5 shows a case where mechanical friction increases in the motor position control device and a catch occurs between the fully closed position and the fully open position. The absolute position where this catch occurs can be understood by monitoring the count value. Therefore, after the motor is once returned from the place where the catch has occurred to the specific position, it can be returned with a momentum and the catch portion can be passed through, and the occurrence of the catch due to the deterioration of the durability of the turbocharger can be prevented.
[0033]
FIG. 6 shows the operation when it is necessary to once stop normal control during normal control and return to normal control during the execution of this control. The normal control in this case is control performed corresponding to the accelerator opening and the engine speed.
[0034]
After moving to the fully closed position, it is moved to the destination of normal control. However, if it is operated at the same motor speed as that of normal control, it will take extra time to move to the destination. As a result, a control delay occurs.
[0035]
In this embodiment, in order to prevent this control delay from occurring, it is moved faster than the normal control speed so that no response delay occurs.
[0036]
In this embodiment, the control speed is increased and the initialization (operating between the fully closed position and the fully open position) is performed, and then the normal control is restored. However, the initialization is interrupted and the normal control is resumed. May be.
[0037]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the position detection accuracy of the motor of the position control apparatus using a motor can be improved.
[Brief description of the drawings]
FIG. 1 is a system diagram of a motor control device.
FIG. 2 is a block diagram of a motor control device.
FIG. 3 shows a motor position detection encoder signal.
FIG. 4 shows an example of initialization processing.
FIG. 5 is a motor position counting method using an encoder.
FIG. 6 shows normal initialization processing.
[Explanation of symbols]
DESCRIPTION OF
Claims (12)
自動車のターボチャージャの吸入空気導入路に設けられた可変翼を開閉するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力を前記可変翼に伝達する動力伝達機構に設けられたインクリメンタリ式のモータ回転位置検出装置の出力信号と外部から入力される目標開度信号に基づく目標位置とを比較し、両者が一致するように前記モータを制御するものであり、
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
判定した前記全閉位置と前記全開位置との間の移動量と、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量とを比較し、両者の差が一定値より大きい時は全閉位置と全開位置の間に何らかの故障が発生したと判断し、
判定した前記全閉位置と前記全開位置との間の移動量が、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量よりも小さいときは、前記ターボチャージャの機械部の動作抵抗の増加による故障であると判断することを特徴とするモータ制御装置。An electronic circuit for controlling the motor, and an interface circuit for connecting the electronic circuit to the outside,
In a motor control device for controlling a motor for opening and closing a variable blade provided in an intake air introduction path of a turbocharger of an automobile,
The motor control device includes a target position based on an output signal of an incremental motor rotation position detection device provided in a power transmission mechanism that transmits an output of the motor to the variable blade and a target opening signal input from the outside. And controlling the motor so that the two match,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position ,
The amount of movement between the determined fully closed position and the fully opened position is compared with the amount of movement between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, and the difference between the two is constant. If it is greater than the value, it is determined that some failure has occurred between the fully closed position and the fully open position,
When the determined moving amount between the fully closed position and the fully opened position is smaller than the moving amount between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, A motor control device that determines that a failure is caused by an increase in operating resistance of a mechanical unit .
自動車のターボチャージャの吸入空気導入路に設けられた可変翼を開閉するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力を前記可変翼に伝達する動力伝達機構に設けられたインクリメンタリ式のモータ回転位置検出装置の出力信号と外部から入力される目標開度信号に基づく目標位置とを比較し、両者が一致するように前記モータを制御するものであり、
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
判定した前記全閉位置と前記全開位置との間の移動量と、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量とを比較し、両者の差が一定値より大きい時は全閉位置と全開位置の間に何らかの故障が発生したと判断し、
判定した前記全閉位置と前記全開位置との間の移動量が、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量よりも大きいときは、前記動力伝達機構のギアの損傷による故障であると判断することを特徴とするモータ制御装置。An electronic circuit for controlling the motor, and an interface circuit for connecting the electronic circuit to the outside,
In a motor control device for controlling a motor for opening and closing a variable blade provided in an intake air introduction path of a turbocharger of an automobile,
The motor control device includes a target position based on an output signal of an incremental motor rotation position detection device provided in a power transmission mechanism that transmits an output of the motor to the variable blade and a target opening signal input from the outside. And controlling the motor so that the two match,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
The amount of movement between the determined fully closed position and the fully opened position is compared with the amount of movement between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, and the difference between the two is constant. If it is greater than the value, it is determined that some failure has occurred between the fully closed position and the fully open position,
When the determined amount of movement between the fully closed position and the fully opened position is larger than the amount of movement between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, the power transmission mechanism A motor control device, characterized in that it is determined to be a failure due to damage to a gear of the motor.
自動車のターボチャージャの吸入空気導入路に設けられた可変翼を開閉するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力を前記可変翼に伝達する動力伝達機構に設けられたインクリメンタリ式のモータ回転位置検出装置の出力信号と外部から入力される目標開度信号に基づく目標位置とを比較し、両者が一致するように前記モータを制御するものであり、
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
判定した前記全閉位置と前記全開位置との間の位置で前記モータの動作が停止した場合、少なくとも一回、前記モータを逆回転させてもとの方向へモータ位置を戻し、戻した後に再度当初の方向へモータを動作させることを特徴とするモータ制御装置。An electronic circuit for controlling the motor, and an interface circuit for connecting the electronic circuit to the outside,
In a motor control device for controlling a motor for opening and closing a variable blade provided in an intake air introduction path of a turbocharger of an automobile,
The motor control device includes a target position based on an output signal of an incremental motor rotation position detection device provided in a power transmission mechanism that transmits an output of the motor to the variable blade and a target opening signal input from the outside. And controlling the motor so that the two match,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
When the operation of the motor stops at the position between the determined fully closed position and the fully opened position, the motor position is returned to the original direction at least once by rotating the motor in the reverse direction. A motor control device for operating a motor in an initial direction.
自動車のターボチャージャの吸入空気導入路に設けられた可変翼を開閉するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力を前記可変翼に伝達する動力伝達機構に設けられたインクリメンタリ式のモータ回転位置検出装置の出力信号と外部から入力される目標開度信号に基づく目標位置とを比較し、両者が一致するように前記モータを制御するものであり、
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
前記全開位置及び全閉位置への動作中に、アクセル開度又はエンジン回転数に対応して行われる通常制御が要求されたときは、前記モータの動作速度を上昇させることを特徴とするモータ制御装置。An electronic circuit for controlling the motor, and an interface circuit for connecting the electronic circuit to the outside,
In a motor control device for controlling a motor for opening and closing a variable blade provided in an intake air introduction path of a turbocharger of an automobile,
The motor control device includes a target position based on an output signal of an incremental motor rotation position detection device provided in a power transmission mechanism that transmits an output of the motor to the variable blade and a target opening signal input from the outside. And controlling the motor so that the two match,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
A motor control that increases the operating speed of the motor when normal control is performed in response to the accelerator opening or the engine speed during the operation to the fully open position and the fully closed position. apparatus.
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
判定した前記全閉位置と前記全開位置との間の移動量が、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量よりも小さいときは、前記ターボチャージャの機械部の動作抵抗の増加による故障であると判断することを特徴とするモータ制御方法。A turbocharger that has variable blades on the intake air introduction path and supplies intake air to the engine, a motor that changes the direction of the variable blades of the turbocharger via a power transmission mechanism, and the power transmission mechanism A motor control method of a motor control device having an incremental motor rotation position detection device and an electronic circuit for controlling the motor,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
When the determined moving amount between the fully closed position and the fully opened position is smaller than the moving amount between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, A motor control method, characterized in that a failure is caused by an increase in operating resistance of a mechanical unit.
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
判定した前記全閉位置と前記全開位置との間の移動量が、前記可変翼の機械構造から予め定められる全閉位置と全開位置との間の移動量よりも大きいときは、前記動力伝達機構のギアの損傷による故障であると判断することを特徴とするモータ制御方法。A turbocharger that has variable blades on the intake air introduction path and supplies intake air to the engine, a motor that changes the direction of the variable blades of the turbocharger via a power transmission mechanism, and the power transmission mechanism A motor control method of a motor control device having an incremental motor rotation position detection device and an electronic circuit for controlling the motor,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
When the determined amount of movement between the fully closed position and the fully opened position is larger than the amount of movement between the fully closed position and the fully opened position determined in advance from the mechanical structure of the variable blade, the power transmission mechanism A motor control method, characterized in that it is determined that the failure is due to damage of the gear.
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
前記全開位置及び前記全閉位置の何れか一方を出発点とし、もう一方を終着点とし、前記出発点から前記終着点へ前記可変翼を動かす際に、前記モータへの負荷が一定値以上に達した場合、前記可変翼を前記出発点に近づく方向に戻し、再度終着点へ向けて移動させることを特徴とするモータ制御方法。A turbocharger that has variable blades on the intake air introduction path and supplies intake air to the engine, a motor that changes the direction of the variable blades of the turbocharger via a power transmission mechanism, and the power transmission mechanism A motor control method of a motor control device having an incremental motor rotation position detection device and an electronic circuit for controlling the motor,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
One of the fully open position and the fully closed position is a starting point, the other is an end point, and when the variable blade is moved from the start point to the end point, the load on the motor exceeds a certain value. When it reaches, the motor control method characterized by returning the variable wing to the direction approaching the starting point and moving it again toward the end point.
前記可変翼の開閉いずれかの方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全開又は全閉位置と判定し、当初の方向と逆方向に前記モータを回転させ、前記モータ位置検出装置からの信号が変化しない状態が一定時間継続した場合にその位置を全閉又は全開位置と判定し、
前記全開位置及び全閉位置への動作中に、アクセル開度又はエンジン回転数に対応して行われる通常制御が要求されたときは、前記モータの動作速度を上昇させることを特徴とするモータ制御方法。A turbocharger that has variable blades on the intake air introduction path and supplies intake air to the engine, a motor that changes the direction of the variable blades of the turbocharger via a power transmission mechanism, and the power transmission mechanism A motor control method of a motor control device having an incremental motor rotation position detection device and an electronic circuit for controlling the motor,
When the motor is rotated in either direction of opening and closing of the variable wing and the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined to be the fully open or fully closed position, and the initial direction And when the state where the signal from the motor position detection device does not change continues for a certain period of time, the position is determined as a fully closed or fully opened position,
A motor control that increases the operating speed of the motor when normal control is performed in response to the accelerator opening or the engine speed during the operation to the fully open position and the fully closed position. Method.
自動車のターボチャージャの吸入空気導入路の通路を開閉し、前記ターボチャージャの加給圧を調整するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力軸に設けられているモータ回転位置検出装置の出力信号と外部から入力される目標開度信号とを比較し両者が一致するように前記モータを制御するものであり、
前記モータの位置を初期位置から一旦全閉位置または全開位置へ移動させ、全閉位置または全開位置で停止後逆方向である全開または全閉方向へ動作させ、全閉位置の時のモータ位置信号と全閉位置の時のモータ位置信号との差により全開位置−全閉位置間の移動量を検出し、全閉位置と全開位置の間で機械的な摩擦の増加等により、引っ掛かり等の問題が発生したと判断した時に問題の生じた位置を記憶する事を特徴とするモータ制御装置。CPU and its peripheral circuit and external I / F circuit,
In a motor control device for controlling a motor that opens and closes a passage of an intake air introduction path of a turbocharger of an automobile and adjusts a supply pressure of the turbocharger,
The motor control device compares the output signal of a motor rotational position detection device provided on the output shaft of the motor with a target opening signal input from the outside, and controls the motor so that they match. And
The position of the motor is temporarily moved from the initial position to the fully closed position or fully opened position, and the motor is moved to the fully closed position or fully opened position and then moved to the fully open or fully closed direction that is the reverse direction after stopping. The amount of movement between the fully open position and the fully closed position is detected from the difference between the motor position signal at the fully closed position and the fully closed position, and problems such as catching due to an increase in mechanical friction between the fully closed position and the fully open position A motor control device that stores a position where a problem has occurred when it is determined that an error has occurred.
自動車のターボチャージャの吸入空気導入路の通路を開閉し、前記ターボチャージャの加給圧を調整するモータを制御するモータ制御装置において、
当該モータ制御装置は、前記モータの出力軸に設けられているモータ回転位置検出装置の出力信号と外部から入力される目標開度信号とを比較し両者が一致するように前記モータを制御するものであり、
前記モータの位置を初期位置から一旦全閉位置または全開位置へ移動させ、全閉位置または全開位置で停止後逆方向である全開または全閉方向へ動作させ、全閉位置の時のモータ位置信号と全閉位置の時のモータ位置信号との差により全開位置−全閉位置間の移動量を検出し、
通常制御中にモータの現在位置を検出するための全閉位置或いは全開位置への動作が許可された事により全閉位置への動作あるいは全開位置へモータを動作させた後、通常制御を行う必要が生じた場合は、全開位置への動作あるいは全閉位置へ動作させる場合よりも早くモータを動作させて上記動作を実施しない場合と比べて応答時間の遅れが発生しない様にしたことを特徴とするモータ制御装置。CPU and its peripheral circuit and external I / F circuit,
In a motor control device for controlling a motor that opens and closes a passage of an intake air introduction path of a turbocharger of an automobile and adjusts a supply pressure of the turbocharger,
The motor control device compares the output signal of a motor rotational position detection device provided on the output shaft of the motor with a target opening signal input from the outside, and controls the motor so that they match. And
The position of the motor is temporarily moved from the initial position to the fully closed position or fully opened position, and the motor is moved to the fully closed position or fully opened position and then moved to the fully open or fully closed direction that is the reverse direction after stopping. The amount of movement between the fully open position and the fully closed position is detected by the difference between the motor position signal at the fully closed position and
It is necessary to perform normal control after operating the motor to the fully closed position or the fully open position because the operation to the fully closed position or fully opened position for detecting the current position of the motor is permitted during normal control. If this occurs, the response time will not be delayed compared to the case where the above operation is not performed by operating the motor earlier than the operation to the fully open position or the fully closed position. Motor control device.
前記電子回路を外部と接続するインターフェイス回路、
吸入空気導入路上に可変翼を有し、吸入空気をエンジンに供給するターボチャージャ及び、
出力軸にモータ回転位置検出装置を有し、前記電子回路からの制御により前記ターボチャージャの可変翼の向きを歯車を介して変化させるモータを有するモータ制御装置において、
前記モータの制御動作範囲内の前記可変翼の全開位置及び全閉位置への動作を行い、前記全開位置及び前記全閉位置の何れか一方からもう一方へ前記可変翼を動かす際に、前記モータへの負荷が一定値以上に達した場合、該負荷が発生したモータ回転位置を前記電子回路内に記憶させることを特徴とするモータ制御方法。Electronic circuit to control the motor,
An interface circuit for connecting the electronic circuit to the outside;
A turbocharger having variable wings on the intake air introduction path and supplying the intake air to the engine; and
In a motor control device having a motor rotation position detection device on an output shaft, and having a motor that changes the direction of the variable blades of the turbocharger through a gear by control from the electronic circuit,
When the variable blade is moved from one of the fully open position and the fully closed position to the other, the variable blade is operated to the fully open position and the fully closed position within the control operation range of the motor. When the load on the motor reaches a certain value or more, the motor rotation position at which the load is generated is stored in the electronic circuit.
前記電子回路を外部と接続するインターフェイス回路、
吸入空気導入路上に可変翼を有し、吸入空気をエンジンに供給するターボチャージャ及び、
出力軸にモータ回転位置検出装置を有し、前記電子回路からの制御により前記ターボチャージャの可変翼の向きを歯車を介して変化させるモータを有するモータ制御装置において、
前記モータの制御動作範囲内の前記可変翼の全開位置及び全閉位置への動作を行い、前記全開位置及び全閉位置への動作中に通常動作を実施する信号を前記電子回路が受けた場合、前記モータの動作速度を早くすることを特徴とするモータ制御方法。Electronic circuit to control the motor,
An interface circuit for connecting the electronic circuit to the outside;
A turbocharger having variable wings on the intake air introduction path and supplying the intake air to the engine; and
In a motor control device having a motor rotation position detection device on an output shaft, and having a motor that changes the direction of the variable blades of the turbocharger through a gear by control from the electronic circuit,
When the electronic circuit receives a signal for performing the normal operation during the operation to the fully open position and the fully closed position while performing the operation to the fully open position and the fully closed position of the variable blade within the control operation range of the motor. A motor control method characterized by increasing the operating speed of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001347885A JP3909235B2 (en) | 2001-11-13 | 2001-11-13 | Turbocharger motor position control device and motor device control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001347885A JP3909235B2 (en) | 2001-11-13 | 2001-11-13 | Turbocharger motor position control device and motor device control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003148157A JP2003148157A (en) | 2003-05-21 |
| JP3909235B2 true JP3909235B2 (en) | 2007-04-25 |
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| JP2001347885A Expired - Fee Related JP3909235B2 (en) | 2001-11-13 | 2001-11-13 | Turbocharger motor position control device and motor device control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH700499B1 (en) | 2006-05-18 | 2010-09-15 | Man Diesel & Turbo Se | Diffuser for a turbine of a turbocharger and exhaust gas turbocharger having the same. |
| JP2010223201A (en) * | 2009-03-25 | 2010-10-07 | Mitsuba Corp | Variable nozzle control device for turbocharger |
| JP6915509B2 (en) * | 2017-11-24 | 2021-08-04 | トヨタ自動車株式会社 | Abnormality judgment device |
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| JP3779772B2 (en) * | 1996-07-10 | 2006-05-31 | 株式会社豊田中央研究所 | Engine supercharging device and control method thereof |
| JPH10160027A (en) * | 1996-11-26 | 1998-06-16 | Nissan Motor Co Ltd | Magnetic spring device |
| JP2000110573A (en) * | 1998-09-30 | 2000-04-18 | Aisin Seiki Co Ltd | Variable capacity turbo charger |
| JP2000314343A (en) * | 1999-05-06 | 2000-11-14 | Nissan Motor Co Ltd | Learning method of throttle opening sensor output characteristics |
| WO2001007768A1 (en) * | 1999-07-28 | 2001-02-01 | Hitachi, Ltd. | Method and apparatus for motor-driven throttle valve, automobile, method of measuring temperature of motor for driving automotive throttle valve, and method of measuring motor temperature |
| JP3473522B2 (en) * | 1999-10-12 | 2003-12-08 | トヨタ自動車株式会社 | Variable nozzle turbocharger control device for internal combustion engine |
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