JPS62136652U - - Google Patents
Info
- Publication number
- JPS62136652U JPS62136652U JP2340686U JP2340686U JPS62136652U JP S62136652 U JPS62136652 U JP S62136652U JP 2340686 U JP2340686 U JP 2340686U JP 2340686 U JP2340686 U JP 2340686U JP S62136652 U JPS62136652 U JP S62136652U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- idling
- hydraulic
- control
- signal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案による自動変速機の油圧制御装
置の一実施例を示す構成図、第２図は従来の自動
変速機の油圧制御装置の一部を概略的に示す断面
図、第３図は本出願人の先願による自動変速機の
油圧制御装置の構成図、第４図は上記従来例と先
願の各装置の自動変速機出力軸トルクと時間の関
係を示す性能曲線図である。
１１……電磁弁、１２……弁体、１３……制御
ユニツト、１４……電圧センサ、１７……摩擦係
合機構に連通する油路、１８……大気圧ポート（
またはドレインポート）、２０……スロツトル弁
開度センサ（アイドリング検出手段）。
Fig. 1 is a configuration diagram showing an embodiment of the hydraulic control device for an automatic transmission according to the present invention, Fig. 2 is a sectional view schematically showing a part of a conventional hydraulic control device for an automatic transmission, and Fig. 3 4 is a configuration diagram of a hydraulic control device for an automatic transmission according to the applicant's earlier application, and FIG. 4 is a performance curve diagram showing the relationship between automatic transmission output shaft torque and time for each device of the conventional example and the earlier application. . 11... Solenoid valve, 12... Valve body, 13... Control unit, 14... Voltage sensor, 17... Oil passage communicating with the friction engagement mechanism, 18... Atmospheric pressure port (
or drain port), 20... Throttle valve opening sensor (idling detection means).
Claims (1)
構に導入され、選択された変速シフトに基づき前
記油圧によつてトランスミツシヨンにおける係合
離脱を行なうようにした自動変速機の油圧制御装
置であつて、変速シフトの選択時の電圧変化を検
出する電圧検出手段と、エンジンのアイドリング
状態を検出するアイドリング検出手段と、前記電
圧検出手段および前記アイドリング検出手段から
の各検出信号を制御して制御信号を送る制御ユニ
ツトと、前記制御ユニツトからの制御信号によつ
て前記摩擦係合機構に連通する油路を開放または
遮断すべく開閉作動する制御弁と、を備え、前記
制御弁の作動によつて前記摩擦係合機構における
締結過程で締結油圧を一時的に低下させ、かつア
イドリング時のみ前記締結油圧を低下させるよう
にしたことを特徴とする自動変速機の油圧制御装
置。 A hydraulic control device for an automatic transmission in which hydraulic pressure generated by a hydraulic source is controlled and introduced into a friction engagement mechanism, and the hydraulic pressure is used to engage and disengage a transmission based on a selected gear shift. a voltage detection means for detecting a voltage change when a gear shift is selected; an idling detection means for detecting an idling state of the engine; and control by controlling each detection signal from the voltage detection means and the idling detection means. A control unit that sends a signal, and a control valve that opens and closes to open or shut off an oil passage communicating with the frictional engagement mechanism in response to a control signal from the control unit, A hydraulic control device for an automatic transmission, characterized in that the engagement oil pressure is temporarily lowered during the engagement process in the frictional engagement mechanism, and the engagement oil pressure is reduced only during idling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340686U JPH05592Y2 (en) | 1986-02-20 | 1986-02-20 | |
| US06/903,705 US4748870A (en) | 1985-09-05 | 1986-09-04 | Control system for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2340686U JPH05592Y2 (en) | 1986-02-20 | 1986-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62136652U true JPS62136652U (en) | 1987-08-28 |
| JPH05592Y2 JPH05592Y2 (en) | 1993-01-08 |
Family
ID=30821686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2340686U Expired - Lifetime JPH05592Y2 (en) | 1985-09-05 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05592Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103316A (en) * | 1993-09-30 | 1995-04-18 | Hino Motors Ltd | Lubricating oil cooling device for transmission |
-
1986
- 1986-02-20 JP JP2340686U patent/JPH05592Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103316A (en) * | 1993-09-30 | 1995-04-18 | Hino Motors Ltd | Lubricating oil cooling device for transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05592Y2 (en) | 1993-01-08 |
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