JP2000110857A - Control method for vehicle electromagnetic powder clutch - Google Patents
Control method for vehicle electromagnetic powder clutchInfo
- Publication number
- JP2000110857A JP2000110857A JP10294447A JP29444798A JP2000110857A JP 2000110857 A JP2000110857 A JP 2000110857A JP 10294447 A JP10294447 A JP 10294447A JP 29444798 A JP29444798 A JP 29444798A JP 2000110857 A JP2000110857 A JP 2000110857A
- Authority
- JP
- Japan
- Prior art keywords
- powder clutch
- rotation speed
- electromagnetic powder
- revolutions
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、車両用電磁パウダク
ラッチの制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling an electromagnetic powder clutch for a vehicle.
【０００２】[0002]
【従来の技術及びその課題】従来、エンジンと変速機間
に、励磁電流の増減制御により締結力を増減させること
のできる電磁パウダクラッチを備えた車両において、車
両の発進時に、制御装置に格納された図５の線図より、
スロットル開度Ａから電磁パウダクラッチの目標ミート
回転数Ｂを算出し、図４に示すように、エンジンの回転
数Ｃがこの算出された目標ミート回転数Ｂに合うように
電磁パウダクラッチへ供給する励磁電流値Ｄを算出して
いたが、電磁パウダクラッチの特性変化で電磁パウダク
ラッチの抵抗が増加する場合があり、このような場合
に、実励磁電流Ｅが低下すると、電磁パウダクラッチへ
はクラッチミートに必要な励磁電流が流れず、エンジン
回転数Ｃが目標ミート回転数Ｂからズレて、電磁パウダ
クラッチの滑り量が増加してしまうという問題点があっ
た。2. Description of the Related Art Conventionally, in a vehicle provided with an electromagnetic powder clutch capable of increasing or decreasing a fastening force between an engine and a transmission by controlling an increase or decrease of an exciting current, the vehicle is stored in a control device when the vehicle starts. From the diagram of FIG.
A target meet speed B of the electromagnetic powder clutch is calculated from the throttle opening A, and the engine speed C is supplied to the electromagnetic powder clutch so as to match the calculated target meet speed B as shown in FIG. Although the exciting current value D was calculated, the resistance of the electromagnetic powder clutch may increase due to a change in the characteristics of the electromagnetic powder clutch. In such a case, when the actual exciting current E decreases, the electromagnetic powder clutch is connected to the clutch. There is a problem that the exciting current required for the meet does not flow, the engine speed C deviates from the target meet speed B, and the slip amount of the electromagnetic powder clutch increases.
【０００３】[0003]
【課題を解決するための手段】本発明は上記従来の問題
点に鑑み案出したものであって、車両の発進時に電磁パ
ウダクラッチの滑り量の増加をなくすことのできる電磁
パウダクラッチの制御方法を提供せんことを目的とし、
その要旨は、車両の発進時に、スロットル開度から定め
られた目標ミート回転数と、実際のエンジン回転数との
偏差を算出し、該偏差分、前記目標ミート回転数を補正
して補正目標ミート回転数を設定し、該補正目標ミート
回転数にエンジン回転数が合うように電磁パウダクラッ
チへの励磁電流を補正制御することである。SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and a method of controlling an electromagnetic powder clutch which can eliminate an increase in the amount of slippage of the electromagnetic powder clutch when the vehicle starts moving. For the purpose of not providing
The gist is that when the vehicle starts, a deviation between a target meat rotation speed determined from the throttle opening and the actual engine rotation speed is calculated, and the target meat rotation speed is corrected by the deviation to correct the target meat rotation speed. The rotational speed is set, and the exciting current to the electromagnetic powder clutch is corrected and controlled so that the engine rotational speed matches the corrected target meat rotational speed.
【０００４】[0004]
【実施例】車両の発進時には、図２の線図により、その
時のスロットル開度Ａから電磁パウダクラッチの目標ミ
ート回転数Ｂが算出されるが、本例では、この目標ミー
ト回転数Ｂと実際のエンジン回転数Ｃとの偏差をｔ時間
検出して平均偏差を算出し、この平均偏差分だけ図２に
示すように、前記目標ミート回転数Ｂを補正して、Ｂ１
またはＢ２の補正目標ミート回転数を設定し、車両の発
進時にエンジン回転数が常にこの補正目標ミート回転数
で安定するように電磁パウダクラッチへ供給する励磁電
流を補正制御して、車両の発進時の電磁パウダクラッチ
の滑り量の増加を少なくして、安定したミート回転数に
よるフィーリングの向上を図ることができるものであ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS When the vehicle starts, the target meet speed B of the electromagnetic powder clutch is calculated from the throttle opening A at that time according to the diagram of FIG. 2, the average deviation is calculated by detecting the deviation from the engine rotational speed C for the time t, and the target meet rotational speed B is corrected by the average deviation as shown in FIG.
Alternatively, a correction target meat rotation speed of B2 is set, and the exciting current supplied to the electromagnetic powder clutch is corrected and controlled so that the engine rotation speed is always stabilized at the correction target meat rotation speed when the vehicle starts. Thus, the increase in the amount of slippage of the electromagnetic powder clutch can be reduced, and the feeling can be improved by a stable meat rotation speed.
【０００５】例えば、電磁パウダクラッチが特性変化に
より抵抗値が増加してクラッチミートに必要な励磁電流
が流れないようになっているような状態の場合、図３の
拡大図で示すように、車両の発進時に、スロットル開度
Ａにより定められた目標ミート回転数Ｂを、実際のエン
ジン回転数との偏差分だけ、図３のＰの位置でＰ１の位
置まで下げ、このＰ１の位置を通る補正目標ミート回転
数Ｂ２に変更して、この補正した目標ミート回転数Ｂ２
に実際のエンジン回転数Ｃが合うように電磁パウダクラ
ッチへの励磁電流を補正して、車両の発進時の電磁パウ
ダクラッチの滑り量の増加をなくして、フィーリングを
向上させることができるものとなる。For example, in a case where the resistance value of the electromagnetic powder clutch is increased due to a change in the characteristic so that the exciting current required for the clutch meet does not flow, as shown in the enlarged view of FIG. When the vehicle is started, the target meat rotation speed B determined by the throttle opening A is reduced by the deviation from the actual engine rotation speed to the position P1 at the position P in FIG. The target meat rotation speed B2 is changed to the target meat rotation speed B2.
In addition, the exciting current to the electromagnetic powder clutch is corrected so that the actual engine speed C matches with the actual engine speed C, and the feeling of the electromagnetic powder clutch can be improved by eliminating the slip amount of the electromagnetic powder clutch when the vehicle starts. Become.
【０００６】[0006]
【発明の効果】本発明は、車両の発進時に、スロットル
開度から定められた目標ミート回転数と、実際のエンジ
ン回転数との偏差を算出し、該偏差分、前記目標ミート
回転数を補正して補正目標ミート回転数を設定し、該補
正目標ミート回転数にエンジン回転数が合うように電磁
パウダクラッチへの励磁電流を補正制御することとした
ため、電磁パウダクラッチの特性変化で電磁パウダクラ
ッチの抵抗が増加しているような場合にも、車両の発進
時の電磁パウダクラッチの滑り量の増加をなくして、電
磁パウダクラッチの耐久性を向上させ、かつ安定したミ
ート回転数によるフィーリングの向上を図ることができ
る効果を有する。According to the present invention, when the vehicle starts moving, the deviation between the target engine rotation speed determined from the throttle opening and the actual engine rotation speed is calculated, and the target meat rotation speed is corrected by the deviation. To set a correction target meat rotation speed, and to correct and control the exciting current to the electromagnetic powder clutch so that the engine rotation speed matches the correction target meat rotation speed. Even if the resistance of the electromagnetic powder clutch is increasing, the increase in the amount of slippage of the electromagnetic powder clutch when the vehicle starts moving is eliminated, the durability of the electromagnetic powder clutch is improved, and the feeling due to the stable meat rotation speed is improved. It has the effect of being able to improve.
【図１】車両の発進時のスロットル開度，エンジン回転
数，目標ミート回転数の関係線図である。FIG. 1 is a relationship diagram of a throttle opening, an engine speed, and a target meet speed when a vehicle starts.
【図２】車両の発進時にスロットル開度から定められる
目標ミート回転数の線図である。FIG. 2 is a diagram of a target meet speed determined from a throttle opening when the vehicle starts.
【図３】目標ミート回転数を補正する説明線図である。FIG. 3 is an explanatory diagram for correcting a target meet speed.
【図４】従来の図１に対応させた線図である。FIG. 4 is a diagram corresponding to FIG. 1 of the related art.
【図５】従来の図２に対応させた線図である。FIG. 5 is a diagram corresponding to FIG. 2 of the related art.
Ａ スロットル開度 Ｂ 目標ミート回転数 Ｂ１，Ｂ２ 補正目標ミート回転数 Ｃ エンジン回転数 A Throttle opening B Target meet speed B1, B2 Corrected target meet speed C Engine speed
Claims (1)
められた目標ミート回転数と、実際のエンジン回転数と
の偏差を算出し、該偏差分、前記目標ミート回転数を補
正して補正目標ミート回転数を設定し、該補正目標ミー
ト回転数にエンジン回転数が合うように電磁パウダクラ
ッチへの励磁電流を補正制御することを特徴とする車両
用電磁パウダクラッチの制御方法。When a vehicle is started, a deviation between a target meat rotation speed determined from a throttle opening and an actual engine rotation speed is calculated, and the target meat rotation speed is corrected by an amount corresponding to the deviation. A method for controlling an electromagnetic powder clutch for a vehicle, comprising: setting a meat rotation speed; and correcting and controlling an exciting current to the electromagnetic powder clutch so that the engine rotation speed matches the corrected target meat rotation speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10294447A JP2000110857A (en) | 1998-09-30 | 1998-09-30 | Control method for vehicle electromagnetic powder clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10294447A JP2000110857A (en) | 1998-09-30 | 1998-09-30 | Control method for vehicle electromagnetic powder clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000110857A true JP2000110857A (en) | 2000-04-18 |
Family
ID=17807907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10294447A Pending JP2000110857A (en) | 1998-09-30 | 1998-09-30 | Control method for vehicle electromagnetic powder clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000110857A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1291540A3 (en) * | 2001-09-06 | 2004-01-02 | JATCO Ltd | Multiple-disc electromagnetic clutch control system and method |
-
1998
- 1998-09-30 JP JP10294447A patent/JP2000110857A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1291540A3 (en) * | 2001-09-06 | 2004-01-02 | JATCO Ltd | Multiple-disc electromagnetic clutch control system and method |
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