JPH1140416A - Solenoid driver - Google Patents
Solenoid driverInfo
- Publication number
- JPH1140416A JPH1140416A JP19104097A JP19104097A JPH1140416A JP H1140416 A JPH1140416 A JP H1140416A JP 19104097 A JP19104097 A JP 19104097A JP 19104097 A JP19104097 A JP 19104097A JP H1140416 A JPH1140416 A JP H1140416A
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- amount
- electric control
- target value
- value
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はソレノイド駆動装置
に関し、例えば車両用の自動変速機において油圧制御に
用いられるソレノイドの過渡応答を改善する技術に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid drive device, and more particularly to a technique for improving a transient response of a solenoid used for hydraulic control in an automatic transmission for a vehicle.
【０００２】[0002]
【従来の技術】従来から、ソレノイドに実際に流れる電
流を検出し、この実際の電流が目標値になるように通電
操作量（例えばデューティ）をフィードバック制御する
よう構成し、ソレノイドの抵抗，温度，電源電圧のばら
つきがあっても、目標電流に制御できるようにしたソレ
ノイド駆動装置が知られている（特開平３−１９９７５
７号公報，特開平８−１４８３３３号公報等参照）。2. Description of the Related Art Conventionally, a current actually flowing through a solenoid is detected, and a current supply operation amount (for example, duty) is feedback-controlled so that the actual current becomes a target value. There is known a solenoid drive device capable of controlling to a target current even when there is a variation in power supply voltage (Japanese Patent Laid-Open No. 3-19975).
7, JP-A-8-148333, etc.).
【０００３】上記従来の電流フィードバック制御では、
ローパスフィルターを介して検出電流を読み込んでフィ
ードバック制御を行う構成であったり、補正しようとす
るばらつきが抵抗，温度，電源電圧等の比較的ゆっくり
した変化要因であるため、制御ゲインも比較的小さく設
定されていた。In the conventional current feedback control described above,
The control gain is set to a relatively small value because the feedback current is controlled by reading the detected current through a low-pass filter, or because the variation to be corrected is a relatively slow change factor such as resistance, temperature, and power supply voltage. It had been.
【０００４】[0004]
【発明が解決しようとする課題】ところで、ソレノイド
の可動部分（プランジャ，スプール）が動くときには、
ソレノイドのインダクタンスが過渡的に変化するため、
ソレノイド印加電圧に対する電流の応答特性が変わって
しまい、ソレノイドの可動部分が動かない場合に比べ
て、１次遅れが増大することが実験的に明らかになった
（図８参照）。When the movable part (plunger, spool) of the solenoid moves,
Since the inductance of the solenoid changes transiently,
It has been experimentally found that the response characteristic of the current to the voltage applied to the solenoid changes, and the first-order lag increases as compared with the case where the movable part of the solenoid does not move (see FIG. 8).
【０００５】しかし、上記従来のソレノイド駆動装置で
は、上記特性を考慮しておらず、専ら定常的な目標電流
に対する偏差を吸収すべく、可動部分が動かない定常状
態に適合して制御ゲイン等が決定されていたため、可動
部分が動くときに、過渡的な電流の応答遅れが生じると
いう問題があった。例えば油圧をソレノイドによって制
御する自動変速機においては、ソレノイドの可動部分
（プランジャ）を動かして油圧を変化させようとすると
きに、上記のようにして過渡的な電流の応答遅れが生じ
ると、結果的に油圧変化の応答遅れをもたらしてしまう
という問題が生じる。However, in the above-mentioned conventional solenoid drive device, the above characteristics are not taken into account, and the control gain and the like are adjusted to a steady state in which the movable portion does not move so as to exclusively absorb a deviation from a steady target current. Because of the determination, there is a problem that a transient current response delay occurs when the movable part moves. For example, in an automatic transmission in which the hydraulic pressure is controlled by a solenoid, when the movable part (plunger) of the solenoid is moved to change the hydraulic pressure, if a transient current response delay occurs as described above, the result is as follows. There is a problem that a response delay of a change in hydraulic pressure is caused.
【０００６】本発明は上記実情に鑑みなされたものであ
り、ソレノイドにおける過渡的な電流の応答遅れを改善
して、例えば自動変速機における油圧制御の応答性を向
上させることを目的とする。The present invention has been made in view of the above circumstances, and has as its object to improve a response delay of a transient current in a solenoid, for example, to improve a response of a hydraulic control in an automatic transmission.
【０００７】[0007]
【課題を解決するための手段】そのため請求項１記載の
発明では、ソレノイドの可動部分が動く状態であるか否
かを判別し、前記可動部分が動く状態であるときに、前
記ソレノイドの駆動状態を補正する構成とした。かかる
構成によると、ソレノイドの可動部（プランジャなど）
が動くときには、ソレノイドの電気的特性（インダクタ
ンス）の過渡的な変化に対応して駆動状態が補正され、
応答遅れの補償がなされる。According to the first aspect of the present invention, it is determined whether or not the movable portion of the solenoid is in a moving state, and when the movable portion is in a moving state, the driving state of the solenoid is determined. Was corrected. According to this configuration, the movable part of the solenoid (such as a plunger)
When the motor moves, the driving state is corrected according to the transient change in the electrical characteristics (inductance) of the solenoid,
A response delay is compensated.
【０００８】一方、請求項２記載の発明は、ソレノイド
の通電を制御する通電操作量を出力する制御手段と、前
記ソレノイドの可動部分が動く状態であるか否かを判定
する動作判定手段と、前記動作判定手段の判定結果に応
じて前記通電操作量を補正する補正手段と、を含んで構
成されることを特徴とする。かかる構成によると、制御
手段によってソレノイドの通電が制御されるが、前記ソ
レノイドの可動部分が動く状態であるか否かによって前
記制御手段による通電操作量（例えばデューティ）が補
正され、ソレノイドの電気的特性（インダクタンス）の
過渡的な変化に対応する補正がなされる。On the other hand, the invention according to claim 2 is a control means for outputting an energizing operation amount for controlling energization of the solenoid, an operation determining means for determining whether or not a movable portion of the solenoid is in a moving state, Correction means for correcting the energization operation amount according to the determination result of the operation determination means. According to such a configuration, the energization of the solenoid is controlled by the control means, but the energization operation amount (for example, duty) by the control means is corrected depending on whether or not the movable part of the solenoid is moving, and the electric The correction corresponding to the transient change of the characteristic (inductance) is performed.
【０００９】請求項３記載の発明では、前記制御手段
が、前記ソレノイドの電気的制御量の目標値を演算する
目標値演算手段と、前記電気的制御量の実際値を検出す
る電気的制御量検出手段と、前記目標値演算手段で演算
された目標値に前記電気的制御量検出手段で検出される
実際値が一致するようにソレノイドに対する通電操作量
をフィードバック制御するフィードバック制御手段と、
を含んで構成され、前記補正手段が、前記動作判定手段
によりソレノイドの可動部分が動く状態であると判定さ
れたときに、前記通電操作量にフィードホワード分の付
加する構成とした。According to a third aspect of the present invention, the control means includes a target value calculating means for calculating a target value of an electrical control amount of the solenoid, and an electrical control amount for detecting an actual value of the electrical control amount. Detection means, and feedback control means for performing feedback control of the energization operation amount to the solenoid such that the actual value detected by the electric control amount detection means matches the target value calculated by the target value calculation means,
Wherein the correction means adds the feedforward amount to the energizing operation amount when the operation determining means determines that the movable portion of the solenoid is in a moving state.
【００１０】かかる構成によると、前記ソレノイドの電
気的制御量（例えば電流）の目標値に実際の値が一致す
るように通電操作量がフィードバック制御されるが、ソ
レノイドの可動部分が動く状態であると判定されたとき
には、フィードバック補正分にフィードホワード分を付
加して通電操作量を補正し、応答遅れの補償を図る。請
求項４記載の発明では、前記制御手段が、前記ソレノイ
ドの電気的制御量の目標値を演算する目標値演算手段
と、前記電気的制御量の実際値を検出する電気的制御量
検出手段と、前記目標値演算手段で演算された目標値に
前記電気的制御量検出手段で検出される実際値が一致す
るようにソレノイドに対する通電操作量をフィードバッ
ク制御するフィードバック制御手段と、を含んで構成さ
れ、前記補正手段が、前記動作判定手段によりソレノイ
ドの可動部分が動く状態であると判定されたときに、前
記通電操作量に位相進み処理を施す構成とした。According to this configuration, the energization operation amount is feedback-controlled so that the actual value matches the target value of the electric control amount (for example, current) of the solenoid, but the movable part of the solenoid moves. When it is determined that the feedback correction is made, the feedforward component is added to the feedback correction component to correct the energization operation amount, thereby compensating for the response delay. In the invention according to claim 4, the control means includes: a target value calculating means for calculating a target value of an electrical control amount of the solenoid; and an electrical control amount detecting means for detecting an actual value of the electrical control amount. Feedback control means for feedback-controlling the energization operation amount to the solenoid such that the actual value detected by the electric control amount detection means coincides with the target value calculated by the target value calculation means. When the correcting means determines that the movable portion of the solenoid is in a moving state by the operation determining means, a phase advance process is performed on the energizing operation amount.
【００１１】かかる構成によると、前記ソレノイドの電
気的制御量（例えば電流）の目標値に実際の値が一致す
るようにフィードバック制御されるが、ソレノイドの可
動部分が動く状態であると判定されたときには、フィー
ドバック補正される通電操作量に位相進み補正を施し
て、応答遅れの補償を図る。請求項５記載の発明では、
前記動作判定手段が、前記電気的制御量の目標値に基づ
いて、前記ソレノイドの可動部分が動く状態であるか否
かを判定する構成とした。According to this configuration, feedback control is performed so that the actual value matches the target value of the electric control amount (for example, current) of the solenoid, but it is determined that the movable part of the solenoid is in the moving state. In some cases, a phase advance correction is performed on the energization operation amount to be feedback-corrected to compensate for a response delay. In the invention according to claim 5,
The operation determining means is configured to determine whether or not the movable part of the solenoid is in a moving state based on the target value of the electric control amount.
【００１２】かかる構成によると、電気的制御量（例え
ば電流）の目標値に基づいて、ソレノイドの可動部分の
移動量，移動速度を推定でき、以て、可動部分が動く状
態を判定できる。請求項６記載の発明では、前記ソレノ
イドが流体圧力を制御するものであり、前記動作判定手
段が、前記流体圧力の応答モデルに基づいて前記ソレノ
イドの可動部分が動く状態を判定する構成とした。With this configuration, the moving amount and moving speed of the movable portion of the solenoid can be estimated based on the target value of the electric control amount (for example, current), so that the state in which the movable portion moves can be determined. According to a sixth aspect of the present invention, the solenoid controls fluid pressure, and the operation determining means determines a state in which a movable portion of the solenoid moves based on a response model of the fluid pressure.
【００１３】かかる構成によると、ソレノイドによって
油圧や空気圧などを制御する構成において、目標圧力の
変化に対して遅れる実圧力の変化が、応答モデルを用い
て推定され、この推定された実圧力が目標圧力に追い付
くまでの間をソレノイドの可動部分が動いている期間と
して判断する。請求項７記載の発明では、前記動作判定
手段が、前記電気的制御量の目標値と実際値との偏差に
基づいて、前記ソレノイドの可動部分が動く状態である
か否かを判定する構成とした。According to this configuration, in a configuration in which the hydraulic pressure, the air pressure, and the like are controlled by the solenoid, the change in the actual pressure that is delayed with respect to the change in the target pressure is estimated using a response model. A period until the pressure is overtaken is determined as a period during which the movable portion of the solenoid is moving. In the invention according to claim 7, the operation determining means determines whether or not the movable part of the solenoid is in a moving state based on a deviation between a target value and an actual value of the electric control amount. did.
【００１４】かかる構成によると、電気的制御量の目標
値と実際値との偏差の大小に基づいて前記ソレノイドの
可動部分が動くか否かが判断される。With this configuration, it is determined whether or not the movable portion of the solenoid moves based on the magnitude of the deviation between the target value and the actual value of the electric control amount.
【００１５】[0015]
【発明の効果】請求項１記載の発明によると、ソレノイ
ドの可動部分が動くことでソレノイドの電気的特性（イ
ンダクタンス等）が過渡的に変化し、電流変化の応答遅
れが発生するときに、ソレノイドの駆動状態を補正し
て、前記応答遅れに対する補償を行え、ソレノイドの過
渡応答性を改善できるという効果がある。According to the first aspect of the present invention, when the movable part of the solenoid moves, the electrical characteristics (inductance, etc.) of the solenoid change transiently, and when the response delay of the current change occurs, the solenoid is turned off. Is compensated for the above-mentioned response delay, and the transient response of the solenoid can be improved.
【００１６】請求項２記載の発明によると、ソレノイド
の通電を制御する通電操作量を、ソレノイドの可動部分
が動くことでソレノイドの電気的特性（インダクタンス
等）が過渡的に変化して電流変化の応答遅れが発生する
ときに補正して、前記応答遅れに対する補償を行え、ソ
レノイドの過渡応答性を改善できるという効果がある。According to the second aspect of the present invention, the energization operation amount for controlling energization of the solenoid is controlled by changing the electric characteristic (inductance etc.) of the solenoid transiently by moving the movable part of the solenoid. There is an effect that the response delay can be compensated for when the response delay occurs, and the transient response of the solenoid can be improved.
【００１７】請求項３記載の発明によると、ソレノイド
の電気的制御量を目標値にフィードバックして、定常的
な目標値に対する偏差を吸収しつつ、ソレノイドの可動
部分が動くことでソレノイドの電気的特性（インダクタ
ンス等）が過渡的に変化し、電流変化の応答遅れが発生
するときには、通電操作量のフィードホワード補正によ
って前記応答遅れに対する補償を行えるという効果があ
る。According to the third aspect of the present invention, the electric control amount of the solenoid is fed back to the target value to absorb the deviation from the steady target value, and the movable part of the solenoid moves to absorb the deviation from the steady target value. When a characteristic (inductance or the like) changes transiently and a response delay of a current change occurs, there is an effect that the response delay can be compensated by feedforward correction of the energization operation amount.
【００１８】請求項４記載の発明によると、ソレノイド
の電気的制御量を目標値にフィードバックして、定常的
な目標値に対する偏差を吸収しつつ、ソレノイドの可動
部分が動くことでソレノイドの電気的特性（インダクタ
ンス等）が過渡的に変化し、電流変化の応答遅れが発生
するときには、通電操作量の位相進み処理によって前記
応答遅れに対する補償を行えるという効果がある。According to the fourth aspect of the present invention, the electric control amount of the solenoid is fed back to the target value to absorb the deviation from the steady target value, and the movable portion of the solenoid moves to absorb the deviation from the steady target value. When the characteristic (inductance or the like) changes transiently and a response delay of a current change occurs, there is an effect that compensation for the response delay can be performed by the phase advance processing of the energization operation amount.
【００１９】請求項５記載の発明によると、電流などの
電気的制御量の目標値に基づいて、ソレノイドの可動部
分が動く状態を容易に判定できるという効果がある。請
求項６記載の発明によると、ソレノイドによって油圧や
空気圧などの流体圧力を制御する構成において、流体圧
力の応答モデルからソレノイドの可動部分が動いている
期間を推定して、ソレノイドの可動部分が動くことでソ
レノイドの電気的特性（インダクタンス等）が過渡的に
変化するときに、電流変化の応答遅れを的確に補償でき
るという効果がある。According to the fifth aspect of the present invention, there is an effect that the state in which the movable portion of the solenoid moves can be easily determined based on the target value of the electric control amount such as the current. According to the sixth aspect of the present invention, in a configuration in which fluid pressure such as hydraulic pressure or air pressure is controlled by a solenoid, a period during which the movable portion of the solenoid is moving is estimated from a response model of the fluid pressure, and the movable portion of the solenoid moves. This has the effect that when the electrical characteristics (such as inductance) of the solenoid change transiently, the response delay of the current change can be accurately compensated.
【００２０】請求項７記載の発明によると、電気的制御
量の目標値と実際値とに偏差がある場合には、実際値が
目標値に近づくことで可動部分の変位が生じることにな
るから、可動部分が動く状態を確実に判別できる。According to the seventh aspect of the invention, when there is a deviation between the target value and the actual value of the electric control amount, the actual value approaches the target value, thereby causing displacement of the movable part. Thus, the state in which the movable part moves can be reliably determined.
【００２１】[0021]
【発明の実施の形態】以下に本発明の実施の形態を説明
する。図１は、実施の形態におけるソレノイド駆動装置
を示す制御ブロック図であり、図に示すソレノイド１
は、例えば車両用の油圧式自動変速機に備えられて作動
油圧を制御するものである。Embodiments of the present invention will be described below. FIG. 1 is a control block diagram showing a solenoid driving device according to an embodiment, and a solenoid 1 shown in FIG.
Is provided in, for example, a hydraulic automatic transmission for a vehicle and controls an operating hydraulic pressure.
【００２２】ここで、前記ソレノイド１の電流（電気的
制御量）を制御することで、油圧経路に介装される可動
部分としてのプランジャが変位して油圧経路の面積が変
化し、以て、油圧が調整される構成となっており、前記
電流は、図示しないソレノイド駆動回路に出力されるデ
ューティ制御信号（通電操作量）によって制御される。Here, by controlling the current (electrical control amount) of the solenoid 1, the plunger as a movable portion interposed in the hydraulic path is displaced, and the area of the hydraulic path is changed. The hydraulic pressure is adjusted, and the current is controlled by a duty control signal (energization amount) output to a solenoid drive circuit (not shown).
【００２３】ソレノイド１の通電制御においては、ま
ず、目標電流が目標電流演算部（目標値演算手段）２で
演算され、この目標電流に相当する基準デューティ（中
央値）が中央値設定部３で設定される一方、前記ソレノ
イド１に実際に流れる電流ｉを図示しない電流検出回路
（電気的制御量検出手段）で検出して、前記目標電流と
の偏差を求め、該偏差に基づきフィードバック補正部４
ではＰＩＤ制御動作によってフィードバック補正分を設
定する（フィードバック制御手段）。そして、前記基本
デューティ（中央値）と前記フィードバック補正分とを
加算して得られるデューティを、前記ソレノイド１（ソ
レノイド駆動回路）に出力する。In the energization control of the solenoid 1, first, a target current is calculated by a target current calculation unit (target value calculation means) 2, and a reference duty (median value) corresponding to the target current is calculated by a median value setting unit 3. On the other hand, a current i actually flowing through the solenoid 1 is detected by a current detection circuit (electric control amount detection means) (not shown) to obtain a deviation from the target current.
Then, the amount of feedback correction is set by the PID control operation (feedback control means). Then, a duty obtained by adding the basic duty (median value) and the feedback correction amount is output to the solenoid 1 (solenoid drive circuit).
【００２４】尚、検出されたソレノイド１の実際の電流
ｉは、ローパスフィルタ５を介した後、前記制御偏差の
演算に用いるようにしてある。上記構成からなる制御手
段により、ソレノイドの抵抗，温度，電源電圧のばらつ
きがあっても、定常的には目標電流に精度良く制御でき
ることになる。更に、本実施の形態における駆動装置に
おいては、前記フィードバック制御されるデューティ
（通電操作量）に対して、フィードホワード補正分を加
算するフィードホワード制御系（補正手段）が設けられ
ている。The detected actual current i of the solenoid 1 passes through a low-pass filter 5 and is used for calculating the control deviation. With the control means having the above-described configuration, even if there is variation in the resistance, temperature, and power supply voltage of the solenoid, it is possible to constantly control the target current with high accuracy. Further, the drive device according to the present embodiment is provided with a feed-forward control system (correction means) for adding a feed-forward correction amount to the feedback-controlled duty (energization operation amount).
【００２５】前記フィードホワード制御系は、フィード
ホワード補正量を演算する補正量演算部６と、該補正量
演算部６で演算されたフィードホワード補正量を、上記
フィードバック制御系で設定されるデューティに加算す
るか否かを切り換える切り換え手段７と、前記ソレノイ
ド１の可動部（プランジャ）の状態に応じて前記切り換
え手段７を制御する可動部状態演算部８（動作判定手
段）とからなる。The feedforward control system includes a correction amount calculation unit 6 for calculating a feedforward correction amount, and a feedforward correction amount calculated by the correction amount calculation unit 6 to a duty set by the feedback control system. It comprises a switching means 7 for switching whether or not to add, and a movable part state calculating part 8 (operation determining means) for controlling the switching means 7 according to the state of the movable part (plunger) of the solenoid 1.
【００２６】前記補正量演算部６では、前記目標電流演
算部２で演算された目標電流の微分値に応じてフィード
ホワード補正量を決定する。一方、前記可動部状態演算
部８は、図２に示すような構成によって、前記切り換え
手段７を制御してフィードホワード補正分の加算を行わ
せる。まず、前記目標電流演算部２で演算された目標電
流の微分値を演算し、該微分値が所定値以上であるか否
かを判断する。そして、前記微分値が所定値以上である
ときには、前記ソレノイド１の可動部（プランジャ）が
動く状態であると判断し（動作判定手段）、前記切り換
え手段７を切り換えて、前記補正量演算部６で演算され
るフィードホワード補正量の加算を開始させる。The correction amount calculating section 6 determines the feedforward correction amount according to the differential value of the target current calculated by the target current calculating section 2. On the other hand, the movable section state calculation section 8 controls the switching section 7 to perform the addition of the feedforward correction by the configuration as shown in FIG. First, a differential value of the target current calculated by the target current calculating unit 2 is calculated, and it is determined whether the differential value is equal to or more than a predetermined value. When the differential value is equal to or greater than a predetermined value, it is determined that the movable part (plunger) of the solenoid 1 is in a moving state (operation determining means), and the switching means 7 is switched to change the correction amount calculating part 6. The addition of the feedforward correction amount calculated by is started.
【００２７】上記のように目標電流の微分値に基づいて
開始された前記フィードホワード補正量の加算補正は、
図３に示すように、前記目標電流の微分値に応じた時間
が経過した時点で終了させると良い。ここで、前記目標
電流の微分値に基づいて可動部が動く状態を判別させる
代わりに、目標電流とソレノイド１の実際の電流ｉとの
偏差が所定値以上であるときを、可動部が動く状態とし
て判別させるようにしても良い。この場合、前記フィー
ドホワード補正量の加算補正は、目標電流とソレノイド
１の実際の電流ｉとの偏差が所定値未満になった時点で
終了させると良い。As described above, the addition correction of the feedforward correction amount started based on the differential value of the target current is as follows.
As shown in FIG. 3, it is preferable to end the processing when a time corresponding to the differential value of the target current has elapsed. Here, instead of determining the state in which the movable section moves based on the differential value of the target current, the state in which the movable section moves is determined when the deviation between the target current and the actual current i of the solenoid 1 is equal to or greater than a predetermined value. May be determined. In this case, the addition correction of the feedforward correction amount may be terminated when the deviation between the target current and the actual current i of the solenoid 1 becomes smaller than a predetermined value.
【００２８】更に、図４に示すように、目標油圧Tgtpと
予め設定された油圧応答モデルとに基づいて実際の油圧
Estpを推定し、図５に示すように、前記目標油圧Tgtpと
実油圧Estpとが一致していると判断されるとき（Ｓ
１）、及び、前記目標油圧Tgtpと実油圧Estpとの偏差Ａ
（Ｓ２）が所定値以下であるときに（Ｓ３）、前記フィ
ードホワード補正量の加算補正を終了させ（Ｓ４）、前
記偏差Ａが所定値を越えているときに、前記フィードホ
ワード補正量の加算補正を行わせる（Ｓ５）ようにして
も良い。Further, as shown in FIG. 4, based on the target oil pressure Tgtp and a preset oil pressure response model, the actual oil pressure
When Estp is estimated and it is determined that the target oil pressure Tgtp and the actual oil pressure Estp match as shown in FIG.
1) and a deviation A between the target oil pressure Tgtp and the actual oil pressure Estp.
When (S2) is equal to or less than a predetermined value (S3), the addition correction of the feedforward correction amount is terminated (S4), and when the deviation A exceeds a predetermined value, the addition of the feedforward correction amount is performed. The correction may be performed (S5).
【００２９】上記構成によれば、図６に示すように、目
標電流がステップ変化してソレノイド１の可動部（プラ
ンジャ）が動くときに、フィードホワード補正量が付加
されるので、可動部（プランジャ）が動くことでソレノ
イドのインダクタスが過渡的に変化しても、これに対応
して応答良く目標電流にまで変化させることができ、以
て、油圧を応答良く変化させることができる。According to the above configuration, as shown in FIG. 6, when the movable portion (plunger) of the solenoid 1 moves due to the step change of the target current, the feedforward correction amount is added. ) Moves, even if the inductance of the solenoid changes transiently, it can be changed to the target current with a good response in response thereto, and thus the hydraulic pressure can be changed with a good response.
【００３０】ところで、上記図１に示した実施の形態で
は、ソレノイド１の可動部（プランジャ）が動くとき
に、フィードホワード補正量を付加する構成としたが、
図７に示すように、可動部状態演算部８における演算結
果に応じて、通電操作量としてのデューティに１次位相
進み処理を施す１次進み補償（位相進み処理）10を、ソ
レノイド１の直前に入れるか否かを切り換える構成とす
ることで同様な効果を得ることができる。In the embodiment shown in FIG. 1, the feedforward correction amount is added when the movable part (plunger) of the solenoid 1 moves.
As shown in FIG. 7, a primary advance compensation (phase advance process) 10 for performing a primary phase advance process on the duty as the energization operation amount is performed immediately before the solenoid 1 in accordance with the calculation result in the movable portion state calculation unit 8. A similar effect can be obtained by adopting a configuration in which it is switched whether or not to enter.
【００３１】即ち、可動部状態演算部８において、目標
電流の微分値や油圧の応答モデルに基づいてソレノイド
の可動部が動く状態であると判定されたときには、切り
換え手段７の切り換えによって１次進み補償10を入れる
ようにし、前記微分値に応じた時間が経過した時点、或
いは、応答モデルに基づいて推定される実油圧が目標油
圧に追い付いた時点で、前記１次進み補償10を制御回路
から除くように切り換え手段７を制御する（補正手
段）。That is, when the movable part state calculating section 8 determines that the movable part of the solenoid is moving based on the differential value of the target current and the response model of the hydraulic pressure, the switching means 7 switches the primary advance. When the time corresponding to the differential value has passed, or when the actual hydraulic pressure estimated based on the response model has caught up to the target hydraulic pressure, the primary advance compensation 10 is sent from the control circuit. The switching means 7 is controlled so as to be removed (correction means).
【００３２】ここで、第１の実施の形態におけるフィー
ドバック補正量の演算に相当するものとして、前記１次
進み補償10における係数Ｋを、目標電流の微分値に応じ
て変更すると良い。尚、目標電流の微分値に加え、ソレ
ノイドに流れると予測される電流を加味して、フィード
ホワード補正量，位相進み係数Ｋの設定、及び、補正期
間の判断を行わせるようにしても良い。Here, as a function corresponding to the calculation of the feedback correction amount in the first embodiment, the coefficient K in the first-order advance compensation 10 may be changed according to the differential value of the target current. The feedforward correction amount, the phase lead coefficient K, and the correction period may be determined by taking into account the current predicted to flow through the solenoid in addition to the differential value of the target current.
【００３３】また、ソレノイドを自動変速機における油
圧制御に用いるものに限定するものではなく、例えば空
気圧制御用のソレノイドについて上記同様に駆動制御す
る構成としても良い。The solenoid is not limited to the one used for hydraulic control in the automatic transmission. For example, the solenoid may be driven and controlled for air pressure control in the same manner as described above.
【図面の簡単な説明】[Brief description of the drawings]
【図１】第１の実施の形態を示す制御ブロック図。FIG. 1 is a control block diagram showing a first embodiment.
【図２】目標電流の微分値に基づく補正開始制御の様子
を示すブロック図。FIG. 2 is a block diagram showing a state of correction start control based on a differential value of a target current.
【図３】目標電流の微分値に基づく補正時間の特性を示
す線図。FIG. 3 is a diagram showing characteristics of a correction time based on a differential value of a target current.
【図４】目標油圧と応答モデルとに基づく実油圧推定の
様子を示すブロック図。FIG. 4 is a block diagram showing how actual oil pressure is estimated based on a target oil pressure and a response model.
【図５】目標油圧と実油圧の推定値とに基づく補正期間
の判断の様子を示すフローチャート。FIG. 5 is a flowchart showing how a correction period is determined based on a target hydraulic pressure and an estimated actual hydraulic pressure.
【図６】第１の実施の形態における制御特性を示すタイ
ムチャート。FIG. 6 is a time chart illustrating control characteristics according to the first embodiment.
【図７】第２の実施の形態を示す制御ブロック図。FIG. 7 is a control block diagram showing a second embodiment.
【図８】ソレノイドの可動部分の動きによる電流応答の
違いを示すタイムチャート。FIG. 8 is a time chart showing a difference in current response due to movement of a movable part of a solenoid.
１ ソレノイド ２ 目標電流演算部 ３ 中央値設定部 ４ フィードバック補正部 ５ ローパスフィルタ ６ 補正量演算部 ７ 切り換え手段 ８ 可動部状態演算部 10 １次進み補償 DESCRIPTION OF SYMBOLS 1 Solenoid 2 Target current calculation part 3 Median value setting part 4 Feedback correction part 5 Low pass filter 6 Correction amount calculation part 7 Switching means 8 Movable part state calculation part 10 Primary advance compensation
Claims (7)
否かを判別し、前記可動部分が動く状態であるときに、
前記ソレノイドの駆動状態を補正することを特徴とする
ソレノイド駆動装置。1. A method for determining whether a movable part of a solenoid is in a moving state.
A solenoid driving device for correcting a driving state of the solenoid.
出力する制御手段と、 前記ソレノイドの可動部分が動く状態であるか否かを判
定する動作判定手段と、 前記動作判定手段の判定結果に応じて前記通電操作量を
補正する補正手段と、 を含んで構成されたことを特徴とするソレノイド駆動装
置。2. A control means for outputting an energization operation amount for controlling energization of a solenoid, an operation determination means for determining whether or not a movable part of the solenoid is in a moving state, and a determination result of the operation determination means. And a correcting means for correcting the energization operation amount accordingly.
値演算手段と、 前記電気的制御量の実際値を検出する電気的制御量検出
手段と、 前記目標値演算手段で演算された目標値に前記電気的制
御量検出手段で検出される実際値が一致するようにソレ
ノイドに対する通電操作量をフィードバック制御するフ
ィードバック制御手段と、 を含んで構成され、 前記補正手段が、前記動作判定手段によりソレノイドの
可動部分が動く状態であると判定されたときに、前記通
電操作量にフィードホワード分の付加することを特徴と
する請求項２記載のソレノイド駆動装置。3. The target value calculating means for calculating a target value of an electric control amount of the solenoid; an electric control amount detecting means for detecting an actual value of the electric control amount; Feedback control means for feedback-controlling the energization operation amount to the solenoid so that the actual value detected by the electric control amount detection means coincides with the target value calculated by the value calculation means. 3. The solenoid driving device according to claim 2, wherein the means adds a feedforward amount to the energizing operation amount when the operation determining means determines that the movable portion of the solenoid is moving.
値演算手段と、 前記電気的制御量の実際値を検出する電気的制御量検出
手段と、 前記目標値演算手段で演算された目標値に前記電気的制
御量検出手段で検出される実際値が一致するようにソレ
ノイドに対する通電操作量をフィードバック制御するフ
ィードバック制御手段と、を含んで構成され、 前記補正手段が、前記動作判定手段によりソレノイドの
可動部分が動く状態であると判定されたときに、前記通
電操作量に位相進み処理を施すことを特徴とする請求項
２記載のソレノイド駆動装置。4. The control means includes: a target value calculating means for calculating a target value of an electric control amount of the solenoid; an electric control amount detecting means for detecting an actual value of the electric control amount; Feedback control means for feedback-controlling the energization operation amount to the solenoid such that the actual value detected by the electric control amount detection means coincides with the target value calculated by the value calculation means. 3. The solenoid driving device according to claim 2, wherein the means performs a phase advance process on the energizing operation amount when the operation determining means determines that the movable portion of the solenoid is in a moving state.
目標値に基づいて、前記ソレノイドの可動部分が動く状
態であるか否かを判定することを特徴とする請求項３又
は４に記載のソレノイド駆動装置。5. The apparatus according to claim 3, wherein said operation determining means determines whether or not a movable portion of said solenoid is in a moving state based on a target value of said electric control amount. The solenoid drive as described.
であり、前記動作判定手段が、前記流体圧力の応答モデ
ルに基づいて前記ソレノイドの可動部分が動く状態を判
定することを特徴とする請求項２〜４のいずれか１つに
記載のソレノイド駆動装置。6. The system according to claim 1, wherein said solenoid controls fluid pressure, and said operation determining means determines a state in which a movable portion of said solenoid moves based on a response model of said fluid pressure. The solenoid driving device according to any one of claims 2 to 4.
目標値と実際値との偏差に基づいて、前記ソレノイドの
可動部分が動く状態であるか否かを判定することを特徴
とする請求項３又は４に記載のソレノイド駆動装置。7. The operation determining means determines whether or not a movable portion of the solenoid is in a moving state based on a deviation between a target value and an actual value of the electric control amount. The solenoid driving device according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19104097A JP3632096B2 (en) | 1997-07-16 | 1997-07-16 | Solenoid drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19104097A JP3632096B2 (en) | 1997-07-16 | 1997-07-16 | Solenoid drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1140416A true JPH1140416A (en) | 1999-02-12 |
| JP3632096B2 JP3632096B2 (en) | 2005-03-23 |
Family
ID=16267895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19104097A Expired - Fee Related JP3632096B2 (en) | 1997-07-16 | 1997-07-16 | Solenoid drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3632096B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6993424B2 (en) | 2003-05-27 | 2006-01-31 | Hyundai Motor Company | Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle |
| JP2006170259A (en) * | 2004-12-14 | 2006-06-29 | Hitachi Ltd | Controller of solenoid |
| JP2011231807A (en) * | 2010-04-23 | 2011-11-17 | Toyota Motor Corp | Hydraulic control device for vehicle |
| JP2012031908A (en) * | 2010-07-29 | 2012-02-16 | Toyota Motor Corp | Hydraulic control device of automatic transmission |
| CN104516281A (en) * | 2013-09-30 | 2015-04-15 | 北京中电科电子装备有限公司 | Solenoid driver |
| JP2020172989A (en) * | 2019-04-11 | 2020-10-22 | 株式会社デンソー | Automatic transmission control device |
-
1997
- 1997-07-16 JP JP19104097A patent/JP3632096B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6993424B2 (en) | 2003-05-27 | 2006-01-31 | Hyundai Motor Company | Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle |
| JP2006170259A (en) * | 2004-12-14 | 2006-06-29 | Hitachi Ltd | Controller of solenoid |
| JP2011231807A (en) * | 2010-04-23 | 2011-11-17 | Toyota Motor Corp | Hydraulic control device for vehicle |
| JP2012031908A (en) * | 2010-07-29 | 2012-02-16 | Toyota Motor Corp | Hydraulic control device of automatic transmission |
| CN104516281A (en) * | 2013-09-30 | 2015-04-15 | 北京中电科电子装备有限公司 | Solenoid driver |
| CN104516281B (en) * | 2013-09-30 | 2018-03-02 | 北京中电科电子装备有限公司 | A kind of solenoid driver |
| JP2020172989A (en) * | 2019-04-11 | 2020-10-22 | 株式会社デンソー | Automatic transmission control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3632096B2 (en) | 2005-03-23 |
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