JP4484658B2 - Hydraulic control device for automatic transmission - Google Patents

Hydraulic control device for automatic transmission Download PDF

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JP4484658B2
JP4484658B2 JP2004295954A JP2004295954A JP4484658B2 JP 4484658 B2 JP4484658 B2 JP 4484658B2 JP 2004295954 A JP2004295954 A JP 2004295954A JP 2004295954 A JP2004295954 A JP 2004295954A JP 4484658 B2 JP4484658 B2 JP 4484658B2
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valve
plug
valve body
spool
automatic transmission
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JP2006105356A (en
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暢洋 佐藤
卓也 藤峰
和幸 野田
穂 藤堂
和久 尾崎
和俊 野崎
敦 本多
雅文 木下
晶治 安倍
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Aisin AW Co Ltd
Toyota Motor Corp
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Aisin AW Co Ltd
Toyota Motor Corp
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Description

本発明は、自動変速機の油圧制御装置に関し、特に、油圧制御装置を構成するバルブボディの小型・軽量化技術に関する。   The present invention relates to a hydraulic control device for an automatic transmission, and more particularly to a technology for reducing the size and weight of a valve body constituting the hydraulic control device.

車両に搭載される自動変速機は、トルクコンバータの流体伝動や変速機のクラッチやブレーキの係脱、更には機構各部の潤滑や冷却のために、自動変速機作動油（ＡＴＦ：オートマチックトランスミッションフルイド、本明細書において油という）の供給及び排出を行なう油圧制御装置を備える。油圧制御装置は、その主体となる部分が制御のための各種弁とそれらをつなぐ油圧回路を内蔵するバルブボディとして構成される。   Automatic transmissions mounted on vehicles are equipped with automatic transmission fluid (ATF: automatic transmission fluid) for fluid transmission of torque converters, engagement / disengagement of transmission clutches and brakes, and lubrication and cooling of each part of the mechanism. A hydraulic control device for supplying and discharging oil). The main part of the hydraulic control device is configured as a valve body that incorporates various valves for control and a hydraulic circuit that connects them.

上記バルブボディは、変速機構を収容するケースの下側や側方に形成した平坦な壁面に取り付けられるのが一般的であるが、変速機の多段化に伴い、内蔵させる弁の数が増加し、それにより油圧回路も複雑化するため、大型化する傾向にある。このような大型化はある程度避けられないとしても、ケースへの取付面の面積はケースの不要な大型化、すなわち、本来、変速機構を収容するに必要な外形を上回るような取付面の確保のための大型化を避ける意味で重要である。   The valve body is generally attached to a flat wall formed on the lower side or side of the case that houses the speed change mechanism. However, as the number of stages of the transmission increases, the number of built-in valves increases. As a result, the hydraulic circuit is also complicated, and tends to increase in size. Even if such enlargement is unavoidable to some extent, the area of the mounting surface to the case is unnecessarily large, i.e., securing a mounting surface that exceeds the outer shape originally required to accommodate the speed change mechanism. This is important in the sense of avoiding an increase in size.

従来、バルブボディにおける油圧回路の油路を弁部分を迂回させて設けることに伴う油路の複雑化を防ぐ技術として、平行軸関係に配置された組込みバルブとソレノイドバルブのスプール穴端のソレノイドバルブ穴とを共通の短い１本の鋳抜きグルーブにより連通する技術がある（特許文献１参照）。また、スプール孔の奥部に配した短いスプールを抜け止めする盲プラグを長尺化し、該プラグの細径化部分を周囲を油圧通路の一部とする技術がある（特許文献２参照）。
特開平５−１６４２２９号公報 特開平２−３０４２４４号公報 Conventionally, as a technique to prevent the oil path from becoming complicated due to the bypass of the oil passage in the hydraulic circuit in the valve body, the solenoid valve at the end of the spool hole of the built-in valve and solenoid valve arranged in a parallel axis relationship There is a technique of communicating a hole with a common short cast-out groove (see Patent Document 1). In addition, there is a technique in which a blind plug that prevents a short spool disposed in the inner part of the spool hole is elongated, and the narrowed portion of the plug is surrounded by a part of a hydraulic passage (see Patent Document 2).
JP-A-5-164229 JP-A-2-304244

ところで、上記特許文献１に記載の技術は、スプール穴の端部とソレノイド弁のポートとを直接連通するものであるため、スプール弁の端部にかかる油圧とソレノイド弁のポートにかかる油圧が共通するものにしか適用できず、広く一般的な平行軸配置の弁に適用可能な技術ではない。また、特許文献２に記載の技術は、プラグのスペースを利用して油路を構成することを開示するに止まる。   By the way, since the technique described in Patent Document 1 directly communicates the end of the spool hole and the port of the solenoid valve, the hydraulic pressure applied to the end of the spool valve and the hydraulic pressure applied to the port of the solenoid valve are common. It is not a technique that can be applied only to a valve having a parallel axis arrangement that is widely used. In addition, the technique described in Patent Document 2 only discloses that the oil passage is configured by using the space of the plug.

本発明は、上記のような事情に鑑み案出されたものであり、油路配置の複雑化を伴うことなく、弁をバルブボディの厚さ方向に積重ねることで、バルブボディの面積増加を防ぐことを主たる目的とする。   The present invention has been devised in view of the above circumstances, and by accumulating valves in the thickness direction of the valve body without complicating the oil passage arrangement, the area of the valve body can be increased. The main purpose is to prevent.

上記目的を達成するため、本発明は、バルブボディ（１）内に該バルブボディへのプラグ（２）の嵌め込みにより抜止めして配置された第１スプール弁（３）と、該第１スプール弁に対してバルブボディの厚さ方向に積重ね状態でバルブボディに付設された第２スプール弁（４）とを備える自動変速機の油圧制御装置において、前記プラグに前記バルブボディ内の油路（Ｌ１，Ｌ２）と前記第２スプール弁のポート（Ｌ３，Ｌ４）とをつなぐ連通路（２３，２４）が形成されてなり、前記プラグは、その回転により前記第１スプール弁に当接するスプリング（５）のばね荷重を調整するものであり、複数のオリフィスを備え、それら複数のオリフィスのいずれか１つが、前記プラグの回転位置に関わらず連通路の導通を維持するものであることを基本的特徴とする。
より具体的には、前記第２スプール弁は、ソレノイド弁とされ、前記連通路は、前記バルブボディ内の油路（Ｌ１）と前記ソレノイド弁のインポート（Ｌ３）とをつなぐ連通路（２３）とされ、前記ソレノイド弁への供給油圧の振動を抑制する前記複数のオリフィス（２５）を備えるものとされる。
また、前記複数のオリフィスは、前記プラグと一体のオリフィス板（２６）に形成された孔で構成される。 In order to achieve the above-mentioned object, the present invention provides a first spool valve (3) disposed in the valve body (1) so as to be removed by fitting a plug (2) into the valve body, and the first spool. In a hydraulic control device for an automatic transmission comprising a second spool valve (4) attached to the valve body in a stacked state with respect to the valve in the thickness direction of the valve body, an oil passage ( L1, L2) and communication passages (23, 24) connecting the ports (L3, L4) of the second spool valve are formed, and the plug is a spring (abutting on the first spool valve by its rotation). 5) adjusts the spring load of, comprising a plurality of orifices, but any one of the plurality of orifices, for maintaining the continuity of the communication passage regardless of the rotational position of the plug this It is referred to as basic features.
More specifically, the second spool valve is a solenoid valve, and the communication path is a communication path (23) that connects an oil path (L1) in the valve body and an import (L3) of the solenoid valve. is a, is intended to comprise an orifice (25) said plurality of suppressing the vibration of the hydraulic pressure supplied to the solenoid valve.
Also, the plurality of orifices are constituted by holes formed in the plug integral with the orifice plate (26).

前記本発明の構成では、第１スプール弁に対してバルブボディの厚さ方向に積重ね状態でバルブボディに付設された第２スプール弁に第１スプール弁のプラグを介して油圧を供給することができるため、第１スプール弁の入出力油圧と関連するしないの如何を問わず、任意の油圧を格別の迂回油路なしでソレノイド弁に供給することができる。
また、第１スプール弁に対してバルブボディの厚さ方向に積重ね状態でバルブボディにソレノイド弁を付設させ、プラグに設けた連絡油路にオリフィスを備える構成では、別途バルブボディ中にオリフィスを設けることなく、ソレノイド弁への供給油圧の振動を抑制することができる。
また、複数のオリフィスのいずれか１つが、プラグの回転位置に関わらず連通路の導通を維持する構成では、プラグをスプール弁に当接するスプリングのばね荷重を調整するものとした構成において、上記のソレノイド弁への供給油圧の振動を抑制する効果を達成できる。
また、オリフィスをプラグと一体のオリフィス板に形成された孔で構成した場合、プラグを周回する溝等でオリフィスを構成した場合に比べて、オリフィス径を高精度にすることができる。 In the configuration of the present invention, hydraulic pressure is supplied to the second spool valve attached to the valve body in a stacked state in the thickness direction of the valve body with respect to the first spool valve via the plug of the first spool valve. Therefore, any hydraulic pressure can be supplied to the solenoid valve without any special detour oil path, regardless of whether it is not related to the input / output hydraulic pressure of the first spool valve.
In addition, in the configuration in which the solenoid valve is attached to the valve body in a state of being stacked in the thickness direction of the valve body with respect to the first spool valve, and the orifice is provided in the communication oil passage provided in the plug, the orifice is separately provided in the valve body. Therefore, it is possible to suppress the vibration of the hydraulic pressure supplied to the solenoid valve.
In the configuration in which any one of the plurality of orifices maintains the conduction of the communication path regardless of the rotational position of the plug, in the configuration in which the spring load of the spring that abuts the plug against the spool valve is adjusted, The effect of suppressing the vibration of the hydraulic pressure supplied to the solenoid valve can be achieved.
In addition, when the orifice is configured by a hole formed in an orifice plate integrated with the plug, the orifice diameter can be made more accurate than when the orifice is configured by a groove or the like surrounding the plug.

図１は、本発明の実施形態に係るバルブボディの断面を示す。図１に示すように、バルブボディ１は、変速機ケースの壁に内蔵状態に構成されるバルブボディアッパ（図示せず）との合わせ面１０を備え、バルブボディ１内に該バルブボディへのプラグ２の嵌め込みにより抜止めして配置されたスプール弁３と、スプール弁に対してバルブボディ１の厚さ方向に積重ね状態でバルブボディ１に付設されたソレノイド弁４とを備える。   FIG. 1 shows a cross section of a valve body according to an embodiment of the present invention. As shown in FIG. 1, the valve body 1 includes a mating surface 10 with a valve body upper (not shown) configured in a built-in state on the wall of the transmission case, and the valve body 1 is connected to the valve body. The spool valve 3 is arranged so as to be prevented from being pulled out by fitting the plug 2 and the solenoid valve 4 attached to the valve body 1 in a stacked state in the thickness direction of the valve body 1 with respect to the spool valve.

本発明の特徴に従い、プラグ２にはバルブボディ１内の油路Ｌ１，Ｌ２とソレノイド弁４のポートＬ３，Ｌ４とをつなぐ連通路２３，２４が形成されている。また、連通路２３は、ソレノイド弁４への供給油圧の振動を抑制するオリフィス２５を備える。更に、プラグ２は、その回転によりスプール弁３に当接するスプリング５のばね荷重を調整するものであり、図２に断面の詳細を示すように、複数のオリフィス２５ａ，２５ｂ，２５ｃを備え、それら複数のオリフィスのいずれか１つが、プラグ２の回転位置に関わらず連通路２３の導通を維持するものとされている。   In accordance with a feature of the present invention, the plug 2 is formed with communication passages 23 and 24 that connect the oil passages L1 and L2 in the valve body 1 and the ports L3 and L4 of the solenoid valve 4. In addition, the communication path 23 includes an orifice 25 that suppresses vibration of the hydraulic pressure supplied to the solenoid valve 4. Further, the plug 2 adjusts the spring load of the spring 5 that contacts the spool valve 3 by its rotation, and includes a plurality of orifices 25a, 25b, and 25c, as shown in detail in cross section in FIG. Any one of the plurality of orifices maintains the conduction of the communication path 23 regardless of the rotational position of the plug 2.

次に、細部構成を説明する。なお、この形態において、本発明は、バルブボディ１を前記のようにバルブボディロアとし、スプール弁３をプライマリレギュレータバルブとし、ソレノイド弁４をオンオフソレノイドバルブとして適用されている。   Next, a detailed configuration will be described. In this embodiment, the present invention is applied as the valve body lower as described above, the spool valve 3 as the primary regulator valve, and the solenoid valve 4 as the on / off solenoid valve.

プライマリレギュレータバルブ３は、スプール３０上に４つのランド３１〜３４を備える構成とされ、スプール３０の一端（図１において右端）にランド径より縮径されたプランジャ状の受圧部３５、他端にスプリング５の心だし用に軸部３６を有する。両端の第１及び第４のランド３１，３４は、弁孔１１を閉じるランドであり、第２のランド（図１上で右から２番目のランド）３２は、ライン圧のインポートＰ１とドレンポートＰ２の連通度を制御するランドであり、第３のランド（図１上で左から２番目のランド）３３は、ライン圧のインポートＰ１とセカンダリ圧のアウトポートＰ３の連通度を制御するランドである。   The primary regulator valve 3 is configured to include four lands 31 to 34 on the spool 30, a plunger-shaped pressure receiving portion 35 having a diameter reduced from the land diameter at one end (the right end in FIG. 1) of the spool 30, and the other end. A shaft portion 36 is provided for centering the spring 5. The first and fourth lands 31 and 34 at both ends are lands that close the valve hole 11, and the second land (second land from the right in FIG. 1) 32 is the line pressure import P1 and the drain port. A land that controls the degree of communication of P2, and a third land (second land from the left in FIG. 1) 33 is a land that controls the degree of communication between the line pressure import P1 and the secondary pressure outport P3. is there.

このプライマリレギュレータバルブ３は、そのスプール３０の一端に常時負荷されるスプリング５のばね荷重に対向してプランジャ状の受圧部３５にポートＰ４から印加されるライン圧からのフィードバック圧とのバランスで作動する。このため、プラグ２は、スプリング５のばね荷重設定手段を兼ねている。プラグ２はスプール３０と同径のプランジャ状に構成されており、スプリング５に当接する端面とは反対側に、若干縮径された回り止め係止部２１と、その端面から突出する回転操作部としての２面幅の突起部２２とを備えている。   The primary regulator valve 3 operates in a balance with the feedback pressure from the line pressure applied from the port P4 to the plunger-shaped pressure receiving portion 35 in opposition to the spring load of the spring 5 that is always loaded at one end of the spool 30. To do. For this reason, the plug 2 also serves as a spring load setting means for the spring 5. The plug 2 is configured as a plunger having the same diameter as the spool 30, and has a detent locking portion 21 that is slightly reduced in diameter on the side opposite to the end surface that contacts the spring 5, and a rotation operation portion that protrudes from the end surface. As a projection 22 having a width of two faces.

連通路２４は、プラグ２の周面を周回する溝で構成されている。この溝の軸方向幅は、溝に通じるバルブボディのアウトポート側の油路Ｌ２の軸方向幅と出力側油路Ｌ４の軸方向幅より十分狭く構成され、プラグ２の位置が軸線方向に移動しても、溝幅全体で前記両油路Ｌ２，Ｌ４に通じる構成とされている。   The communication path 24 is configured by a groove that goes around the peripheral surface of the plug 2. The axial width of this groove is sufficiently narrower than the axial width of the oil passage L2 on the outport side of the valve body leading to the groove and the axial width of the output oil passage L4, and the position of the plug 2 moves in the axial direction. Even so, the entire groove width leads to the oil passages L2 and L4.

一方、供給側の連絡路２３は、図２を参照して分かるように、プラグ２を所定幅で周方向等間隔に３箇所切欠いた切欠き間を連通するオリフィス２５を備える構成とされている。すなわち、プラグ２を軸線方向にみて、プラグ２の中心を通り周方向に１２０°間隔で放射方向に延びる壁状の部分（以下オリフィス板という）２６が切欠に対する残余の部分として残る形状に構成されている。この切欠きの軸線方向幅も前記連通路２４の場合と同様に、切欠きに通じるバルブボディのインポート側の油路Ｌ１の軸方向幅と入力側油路Ｌ３の軸方向幅より十分狭く構成され、プラグ２の位置が軸線方向に移動しても、切欠き幅全体で前記両油路に通じる構成とされている。そして、各オリフィス板２６ａに、該板を厚さ方向に貫通する小孔からなるオリフィス２５が形成されている。   On the other hand, as shown in FIG. 2, the supply-side communication path 23 is configured to include an orifice 25 that communicates between notches in which the plug 2 is notched in three circumferentially equal intervals with a predetermined width. . That is, when the plug 2 is viewed in the axial direction, a wall-like portion (hereinafter referred to as an orifice plate) 26 extending radially in the circumferential direction through the center of the plug 2 is formed as a remaining portion with respect to the notch. ing. As in the case of the communication path 24, the axial width of the notch is configured to be sufficiently narrower than the axial width of the oil passage L1 on the import side of the valve body leading to the notch and the axial width of the input oil passage L3. Even if the position of the plug 2 moves in the axial direction, the entire cutout width communicates with both the oil passages. Each orifice plate 26a is formed with an orifice 25 that is a small hole penetrating the plate in the thickness direction.

図３にプライマリレギュレータバルブ３を端面方向に見て示すように、回り止め係止部２１は、軸線方向にみて扇形の周方向１２０°間隔の切欠き部２１ａ，２１ｂ，２１ｃと、それらの間に挟まれる非切欠き部２１ｄ，２１ｅ，２１ｆで構成されている。各切欠き部２１の軸線方向（図３において紙面奥方向）の深さは、それぞれ異なっており、プラグ２がスプリング５に対して接近離反する方向の３段階のストッパを構成している。図２と図３を対比して分かるように、プラグ２の１つの切欠き部２１ａの中心とリテーナ６の中心が一致した状態で、１つのオリフィス板２６ａが両油路に対して直交する方向を向く角度関係にストッパとオリフィス板２６ａの位置関係が設定されている。この関係により、図２に示す前記中心が一致した位置に対して、プラグが反時計回り方向に最大限回転した状態でも、３枚のオリフィス板２６ａはプラグ２の嵌合孔の円筒状の壁面に接した状態が維持され、逆に、プラグ２が時計回り方向に最大限回転した状態でも、３枚のオリフィス板２６ａはプラグ２の嵌合孔の円筒状の壁面に接した状態が維持される。この関係は、オリフィス板２６と切欠き部２１ａの周方向配置間隔が同じ１２０°であることから、３段階のストッパのいずれの位置においても他のオリフィス板２６ｂ，２６ｃに対する切欠き部２１ｂ，２１ｃの位置として同様に成立する。   As shown in FIG. 3 when the primary regulator valve 3 is viewed in the end surface direction, the detent locking portion 21 includes fan-shaped notches 21a, 21b, and 21c at intervals of 120 ° in the circumferential direction as viewed in the axial direction. It is comprised by the non-notch part 21d, 21e, 21f pinched | interposed into. The depth of each notch 21 in the axial direction (the depth direction in the drawing in FIG. 3) is different, and constitutes a three-stage stopper in the direction in which the plug 2 approaches and separates from the spring 5. As can be seen by comparing FIG. 2 and FIG. 3, the direction in which one orifice plate 26 a is orthogonal to both the oil passages in a state where the center of one notch 21 a of the plug 2 coincides with the center of the retainer 6. The positional relationship between the stopper and the orifice plate 26a is set to the angular relationship facing the. Due to this relationship, the three orifice plates 26a remain in the cylindrical wall surface of the fitting hole of the plug 2 even when the plug is rotated counterclockwise to the maximum with respect to the position shown in FIG. The three orifice plates 26a are maintained in contact with the cylindrical wall surface of the fitting hole of the plug 2 even when the plug 2 is rotated to the maximum in the clockwise direction. The This relationship is because the circumferential arrangement interval between the orifice plate 26 and the cutout portion 21a is the same 120 °, so that the cutout portions 21b, 21c with respect to the other orifice plates 26b, 26c at any position of the three-stage stopper. The same holds true for the position of.

図１に戻って、オンオフソレノイドバルブ４は、バルブボディ１の弁穴に嵌め込んだ弁部分４１と、バルブボディ１から突出するソレノイド部分４２とを備える。   Returning to FIG. 1, the on / off solenoid valve 4 includes a valve portion 41 fitted into the valve hole of the valve body 1 and a solenoid portion 42 protruding from the valve body 1.

以上の構成からなるバルブボディにおいて、供給油路Ｌ１の油圧は、プラグ２の切欠きを通してプラグ孔内に入り、オリフィス板のオリフィス２５を通ってインポートＬ３からソレノイドバルブ４に供給される。この際、入力される油圧に変動があっても、オリフィス２５により油圧振動が減衰され、ソレノイド弁４の誤作動が防止される。そして、ソレノイドバルブ４の開放時は、アウトポートＬ４からプラグ２の周溝を通してプラグ孔内に入り、出力油路Ｌ２に排出される。   In the valve body configured as described above, the hydraulic pressure in the supply oil passage L1 enters the plug hole through the notch of the plug 2, and is supplied from the import L3 to the solenoid valve 4 through the orifice 25 of the orifice plate. At this time, even if the input hydraulic pressure fluctuates, the hydraulic vibration is attenuated by the orifice 25 and the malfunction of the solenoid valve 4 is prevented. When the solenoid valve 4 is opened, it enters the plug hole from the out port L4 through the peripheral groove of the plug 2, and is discharged to the output oil passage L2.

かくして、この実施形態によれば、油圧の入出力油路に対してプライマリレギュレータバルブ３を挟んで外側に重ねて配置されたソレノイドバルブ４に対する油圧の供給と排出が、バルブボディ１にプライマリレギュレータバルブ３を迂回する屈曲した油路を形成することなく実現される。また、プライマリレギュレータバルブ３のプラグ２を利用してオリフィス２５を形成することで、油路中にオリフィスプレートを介在させることに伴うバルブボディの大型化も防ぐことができる。   Thus, according to this embodiment, the supply and discharge of the hydraulic pressure to the solenoid valve 4 arranged outside the primary regulator valve 3 with the primary regulator valve 3 interposed therebetween with respect to the hydraulic input / output oil passage is transferred to the valve body 1 as the primary regulator valve. This is realized without forming a bent oil passage that bypasses 3. Further, by forming the orifice 25 using the plug 2 of the primary regulator valve 3, it is possible to prevent the valve body from being enlarged due to the orifice plate being interposed in the oil passage.

以上本発明を１つの実施形態に基づき詳述したが、本発明はこの実施形態に限るものではなく、各請求項に記載の事項の範囲内で、種々の形態で実施可能なものである。   Although the present invention has been described in detail based on one embodiment, the present invention is not limited to this embodiment, and can be implemented in various forms within the scope of the matters described in each claim.

本発明の実施形態に係るバルブボディの断面図である。It is sectional drawing of the valve body which concerns on embodiment of this invention. 連絡油路の断面図である。It is sectional drawing of a connection oil path. プラグとストッパとの間の遊びを示すスプール弁の端面図である。It is an end view of the spool valve showing play between the plug and the stopper.

符号の説明Explanation of symbols

１ バルブボディ
２ プラグ
３ スプール弁
４ ソレノイド弁
５ スプリング
２３，２４ 連通路
２５ オリフィス
２６ オリフィス板
Ｌ１，Ｌ２ 油路
Ｌ３，Ｌ４ ポート
Ｌ３ インポート 1 Valve body 2 Plug 3 Spool valve 4 Solenoid valve 5 Spring 23, 24 Communication passage 25 Orifice 26 Orifice plate L1, L2 Oil passage L3, L4 Port L3 Import

Claims (3)

バルブボディ（１）内に該バルブボディへのプラグ（２）の嵌め込みにより抜止めして配置された第１スプール弁（３）と、該第１スプール弁に対してバルブボディの厚さ方向に積重ね状態でバルブボディに付設された第２スプール弁（４）とを備える自動変速機の油圧制御装置において、
前記プラグに前記バルブボディ内の油路（Ｌ１，Ｌ２）と前記第２スプール弁のポート（Ｌ３，Ｌ４）とをつなぐ連通路（２３，２４）が形成されてなり、
前記プラグは、その回転により前記第１スプール弁に当接するスプリング（５）のばね荷重を調整するものであり、複数のオリフィスを備え、それら複数のオリフィスのいずれか１つが、前記プラグの回転位置に関わらず連通路の導通を維持するものであることを特徴とする自動変速機の油圧制御装置。 A first spool valve (3) disposed in the valve body (1) by retaining the plug (2) into the valve body, and the valve body (1) in the thickness direction of the valve body with respect to the first spool valve; In a hydraulic control device for an automatic transmission comprising a second spool valve (4) attached to the valve body in a stacked state,
The plug is formed with communication passages (23, 24) connecting the oil passages (L1, L2) in the valve body and the ports (L3, L4) of the second spool valve ,
The plug adjusts the spring load of the spring (5) that contacts the first spool valve by its rotation, and includes a plurality of orifices, and any one of the plurality of orifices is the rotational position of the plug. A hydraulic control device for an automatic transmission , which maintains the continuity of the communication passage regardless of the automatic transmission. 前記第２スプール弁は、ソレノイド弁であり、前記連通路は、前記バルブボディ内の油路（Ｌ１）と前記ソレノイド弁のインポート（Ｌ３）とをつなぐ連通路（２３）とされ、前記ソレノイド弁への供給油圧の振動を抑制する前記複数のオリフィス（２５）を備える、請求項１記載の自動変速機の油圧制御装置。 The second spool valve is a solenoid valve, the communication passage is imported oil passage (L1) and the solenoid valve in said valve body (L3) communicating passage (23) connecting the said solenoid valve The hydraulic control device for an automatic transmission according to claim 1, comprising the plurality of orifices (25) for suppressing vibration of a hydraulic pressure supplied to the vehicle. 前記複数のオリフィスは、前記プラグと一体のオリフィス板（２６）に形成された孔で構成される、請求項１又は２記載の自動変速機の油圧制御装置。 Wherein the plurality of orifices, said plug and consisting of holes formed in the integral orifice plate (26), a hydraulic control system for an automatic transmission according to claim 1 or 2, wherein.
JP2004295954A 2004-10-08 2004-10-08 Hydraulic control device for automatic transmission Expired - Fee Related JP4484658B2 (en)

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JP2017053421A (en) * 2015-09-09 2017-03-16 マツダ株式会社 Valve body assembly for hydraulic pressure control device and process of manufacture of the same
CN107179746B (en) * 2017-06-20 2019-07-12 清华大学 A method of eliminating the moving platform fluctuation of speed of parallel architecture main tapping terminal
CN216131420U (en) * 2021-05-21 2022-03-25 华为技术有限公司 Multi-way valve, thermal management system and car

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01165336U (en) * 1988-05-11 1989-11-20
JPH02304244A (en) * 1989-05-18 1990-12-18 Nissan Motor Co Ltd Control valve for automatic transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01165336U (en) * 1988-05-11 1989-11-20
JPH02304244A (en) * 1989-05-18 1990-12-18 Nissan Motor Co Ltd Control valve for automatic transmission

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