JP2003503666A - Automatic transmission - Google Patents
Automatic transmissionInfo
- Publication number
- JP2003503666A JP2003503666A JP2001507960A JP2001507960A JP2003503666A JP 2003503666 A JP2003503666 A JP 2003503666A JP 2001507960 A JP2001507960 A JP 2001507960A JP 2001507960 A JP2001507960 A JP 2001507960A JP 2003503666 A JP2003503666 A JP 2003503666A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- automatic transmission
- pump
- valve
- transmission
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- General Details Of Gearings (AREA)
Abstract
(57)【要約】 本発明は、弁が組み込まれた変速機制御装置と、制御、冷却および潤滑用の油圧ポンプとを備え、この油圧ポンプの吐出量がエンジン回転数に関連している自動車の自動変速機に関する。本発明に基づいて、変速機の油圧回路に必要に応じて接続可能な補助油圧ポンプが設けられている。 (57) [Summary] The present invention provides a transmission control device incorporating a valve, and a hydraulic pump for control, cooling and lubrication, wherein the discharge amount of the hydraulic pump is related to the engine speed. Automatic transmission. According to the invention, an auxiliary hydraulic pump is provided which can be connected as required to the hydraulic circuit of the transmission.
Description
【０００１】
本発明は、定比調圧弁あるいは３ポート２位置電磁切換弁が採用されている変
速機制御装置と、制御、冷却および潤滑用の油圧ポンプとを備え、この油圧ポン
プの吐出量がエンジン回転数に関係している、自動車の自動変速機に関する。The present invention includes a transmission control device that employs a constant ratio pressure regulating valve or a 3-port 2-position electromagnetic switching valve, and a hydraulic pump for control, cooling, and lubrication. It relates to an automatic transmission of a motor vehicle, which is related to the engine speed.
【０００２】
その油圧ポンプは、公知の多くの自動変速機において、吐出量が駆動回転数に
比例して増大するいわゆる一定ポンプ（Konstantpumpen）である。そのポンプは
、一般に、無負荷運転に対して設計される。その場合、無負荷運転中に供給され
る吐出量が、既に、その変速機の制御、冷却および潤滑についての要件を満たし
ていなければならない。The hydraulic pump is a so-called constant pump (Konstantpumpen) in which a discharge amount increases in proportion to a driving rotation speed in many known automatic transmissions. The pump is generally designed for no-load operation. In that case, the delivery delivered during no-load operation must already meet the requirements for control, cooling and lubrication of the transmission.
【０００３】
一定ポンプは、高速回転時に、必要量の数倍の量を搬送する。これは、ポンプ
の通路横断面積をかなり過大寸法に設計しなければならないことを意味し、それ
に関連して、ポンプの動力消費が大きくなり、変速機の効率が低下する。[0003] A constant pump conveys an amount that is several times the required amount when rotating at high speed. This means that the cross-sectional area of the passage of the pump has to be designed to be considerably oversized, in connection with which the power consumption of the pump is increased and the efficiency of the transmission is reduced.
【０００４】
また自動変速機に対して、吐出量を需要量に良好に合わせることができるいわ
ゆる調整ポンプを利用することも提案されている。しかしその調整ポンプは、負
荷に適した低速回転範囲から中速回転範囲において、効率が一定ポンプより悪く
、更に、低回転数時には、圧油供給量が少な過ぎる。It has also been proposed to use a so-called adjusting pump for the automatic transmission, which can adjust the discharge amount to the demand amount. However, the adjusting pump is inferior in efficiency to the constant pump in the low speed rotation range to the medium speed rotation range suitable for the load, and the pressure oil supply amount is too small at the low rotation speed.
【０００５】
ＥＰ６８２７５６号明細書に、乗用車用の自動変速機に対して、吸込み調整式
一定ポンプ、詳しくは吸込み絞り式ラジアルプランジャポンプの形をしたポンプ
が提案されている。このポンプは、所定の回転数からほぼ一定した吐出量を供給
する。この一定した吐出量は、同様に、ほぼ一定した動力消費を必要とする。も
っとも、吸込み絞り式ラジアルプランジャポンプは、大きな騒音と脈動を発生す
る、という欠点がある。EP 682756 proposes a suction-regulating constant pump, more specifically a pump in the form of a suction throttle radial plunger pump, for an automatic transmission for passenger cars. This pump supplies a substantially constant discharge amount from a predetermined rotation speed. This constant discharge rate likewise requires a substantially constant power consumption. However, the suction-throttle radial plunger pump has a drawback in that it produces large noise and pulsation.
【０００６】
自動車の自動変速機に、純粋に電動駆動されるポンプを組み込むことも知られ
ている。しかしその電動駆動ポンプは、これが専ら自動変速機の全油圧供給を保
障しなければならないとき、バッテリに大きく負荷をかける、という欠点がある
。更に、電動駆動ポンプは耐久性が低い。It is also known to incorporate a purely electrically driven pump in the automatic transmission of a motor vehicle. However, the electrically driven pump has the disadvantage that it imposes a heavy load on the battery when it must guarantee the full hydraulic supply of the automatic transmission. Further, the electric drive pump has low durability.
【０００７】
ＤＥ Ａ ４１３９６１１号明細書に、内歯歯車ポンプとして形成される油圧ポ
ンプを備えた自動変速機が記載されている。その油圧ポンプも、所定の回転数か
ら、ほぼ一定した吐出量を供給する。この一定した吐出量は、ほぼ一定した動力
消費しか必要としないが、しかし、次のような欠点があることが分かっている。
即ち、そのような内歯歯車ポンプは、ラジアルプランジャポンプと同じように、
要求される圧力において、油圧損失動力が過大であり、ないし過大な脈動が生ず
る。特に、ラジアルプランジャポンプを利用する場合、そのポンプにとって必要
な鎮静室（Tilgerraumes）を変速機内に形成するために、所要構造空間が増大す
る。DE-A-4139611 describes an automatic transmission with a hydraulic pump formed as an internal gear pump. The hydraulic pump also supplies a substantially constant discharge amount from a predetermined rotation speed. This constant discharge rate requires almost constant power consumption, but has been found to have the following drawbacks.
That is, such an internal gear pump, like a radial plunger pump,
At the required pressure, the hydraulic power loss is excessive or excessive pulsation occurs. In particular, when a radial plunger pump is used, the required structural space is increased in order to form the sill chambers (Tilgerraumes) required for the pump in the transmission.
【０００８】
変速機の制御、冷却および潤滑用の公知の油圧ポンプは、通常、相応の運転点
について設計され、その結果、その運転点を下回る回転数において、圧油の供給
が不足し、その運転点を上回る回転数において、圧油の供給が過剰となり、変速
機が不要な動力を消費し、これによって、変速機の効率も不利に影響される。更
にまた、変速機の圧油回路に、必要に応じて、エンジン回転数と無関係に、圧油
を供給することができない。Known hydraulic pumps for transmission control, cooling and lubrication are usually designed for a corresponding operating point, so that at speeds below that operating point there is a shortage of pressure oil supply, At speeds above the operating point, the pressure oil supply becomes excessive and the transmission consumes unnecessary power, which also adversely affects the transmission efficiency. Furthermore, it is not possible to supply pressure oil to the pressure oil circuit of the transmission, if necessary, regardless of the engine speed.
【０００９】
本発明の課題は、自動車用の自動変速機を、その圧油回路に、必要に応じて、
エンジン回転数と無関係に、圧油を供給することができるように、形成すること
にある。An object of the present invention is to provide an automatic transmission for an automobile with a pressure oil circuit, if necessary.
It is to form so that the pressure oil can be supplied regardless of the engine speed.
【００１０】
この課題は、冒頭に述べた形式の自動変速機において、請求項１の特徴部分に
記載の手段によって解決される。本発明の有利な実施態様は、従属請求項に記載
されている。This problem is solved in an automatic transmission of the type mentioned at the outset by the measures described in the characterizing part of claim 1. Advantageous embodiments of the invention are described in the dependent claims.
【００１１】
即ち本発明に基づいて、自動変速機に補助油圧ポンプが一体に組み込まれ、こ
の補助油圧ポンプが、必要に応じて、変速機の油圧回路に接続される。好適には
、補助油圧ポンプの接続は、通常の変速機制御装置に存在する定比調圧弁によっ
て、あるいは補助３ポート２位置電磁切換弁によって行われる。この弁の調整範
囲の一部が、補助油圧ポンプを油圧接続弁によって接続するために、利用される
。この弁は、既存のリターダ（ブレーキ）を制御するためにも利用され、これに
よって、以下のような利点が生ずる。That is, according to the present invention, the auxiliary hydraulic pump is integrally incorporated in the automatic transmission, and the auxiliary hydraulic pump is connected to the hydraulic circuit of the transmission as needed. Preferably, the auxiliary hydraulic pump is connected by a constant ratio pressure regulating valve existing in a conventional transmission control device or by an auxiliary three-port two-position electromagnetic switching valve. A part of the adjustment range of this valve is used for connecting the auxiliary hydraulic pump by the hydraulic connection valve. This valve is also used to control the existing retarder (brake), which has the following advantages:
【００１２】
ａ） 補助油圧ポンプを制御するために、電気系統、配線および電子装置につい
ての追加的経費が不要である。A) No additional expense of electrical system, wiring and electronics to control the auxiliary hydraulic pump.
【００１３】 ｂ） 事象制御式に、必要な圧油量が増大される。[0013] b) The amount of pressure oil required is increased in an event-controlled manner.
【００１４】
ｃ） リターダ（ブレーキ）を採用する場合、通常は必要なアキュムレータが省
かれる。C) When a retarder (brake) is adopted, the accumulator that is usually required is omitted.
【００１５】
ｄ） 一次油圧ポンプは低い運転点について設計され、従って良好な効率値につ
いて設計される。D) The primary hydraulic pump is designed for low operating points and therefore good efficiency values.
【００１６】
ｅ） アキュムレータを省いた場合、変速機の接続に関して、圧縮空気接続口が
不要となり、車両とのインターフェース（接続個所）が減少する。E) When the accumulator is omitted, the compressed air connection port is not required for connecting the transmission, and the interface (connection point) with the vehicle is reduced.
【００１７】
ｆ） 制動運転の際、熱交換器ないし冷却器を通る圧油流量が増大され、これに
よって、大きな熱量を排出でき、これによって、熱交換器ないし冷却器の構造体
積を減少できる。F) During braking operation, the pressure oil flow through the heat exchanger or cooler is increased, which allows a large amount of heat to be discharged, which reduces the structural volume of the heat exchanger or cooler.
【００１８】 以下図を参照して本発明を詳細に説明する。[0018] Hereinafter, the present invention will be described in detail with reference to the drawings.
【００１９】
変速機制御装置と油圧ポンプとを備えた自動変速機の構造は、当該技術者にお
いて周知である。従って、図１には、本発明の理解にとって必要な主要構造部品
しか示されていない。The structure of an automatic transmission including a transmission control device and a hydraulic pump is well known to those skilled in the art. Therefore, FIG. 1 shows only the main structural parts necessary for an understanding of the invention.
【００２０】
図１において、符号１は自動変速機に配置され必要に応じて接続される補助油
圧ポンプ、２は油溜め、３は自動変速機の圧油供給系統、即ち制御、冷却および
潤滑用の圧油供給系統に通じている配管、４は変速機制御装置に存在する定比調
圧弁、５は補助油圧ポンプの接続を行う油圧接続弁である。In FIG. 1, reference numeral 1 is an auxiliary hydraulic pump arranged in the automatic transmission and connected as necessary, 2 is an oil sump, 3 is a pressure oil supply system of the automatic transmission, that is, for control, cooling and lubrication. The piping 4 communicating with the pressure oil supply system, 4 is a constant ratio pressure regulating valve existing in the transmission control device, and 5 is a hydraulic connection valve for connecting an auxiliary hydraulic pump.
【００２１】
補助油圧ポンプ１の接続は、上述したように、通常の変速機制御装置に存在す
る定比調圧弁４を介して行われる。この定比調圧弁４の調整範囲の一部が、補助
油圧ポンプ１を接続弁５によって接続するために利用される。上述したように、
定比調圧弁４は、変速機に結合されたリターダ（ブレーキ）の制御にも利用され
る。補助圧油ポンプ１は、接続されていない状態において、無圧（drucklos）運
転する。The connection of the auxiliary hydraulic pump 1 is performed via the constant ratio pressure regulating valve 4 existing in a normal transmission control device, as described above. A part of the adjustment range of the constant ratio pressure regulating valve 4 is used for connecting the auxiliary hydraulic pump 1 with the connecting valve 5. As mentioned above,
The constant ratio pressure regulating valve 4 is also used for controlling a retarder (brake) coupled to the transmission. The auxiliary pressure oil pump 1 operates without pressure (drucklos) in a state where it is not connected.
【図１】 定比調圧弁によって制御される補助油圧ポンプの概略系統図。[Figure 1] The schematic system diagram of the auxiliary hydraulic pump controlled by the constant ratio pressure regulating valve.
１ 油圧ポンプ ２ 油溜め ３ 圧油供給系統 ４ 定比調圧弁 ５ 接続弁 1 hydraulic pump 2 oil sump 3 Pressure oil supply system 4 Constant ratio pressure regulator 5 connection valve
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3J552 NA01 NB01 PA58 QA06C QA13C QA26C QB05 RB20 RC07 SA59 VC01W VD11Z─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 3J552 NA01 NB01 PA58 QA06C QA13C QA26C QB05 RB20 RC07 SA59 VC01W VD11Z
Claims (4)
機において、 当該自動変速機が補助油圧ポンプ（１）を有し、 この補助油圧ポンプ（１）が、変速機の制御、冷却および潤滑用の油圧回路（
３）に必要に応じて接続される、ことを特徴とする自動変速機。1. An automatic transmission for an automobile, comprising: a transmission control device having a valve incorporated therein; and a hydraulic pump for control, cooling and lubrication, wherein a discharge amount of the hydraulic pump is related to an engine speed. The automatic transmission has an auxiliary hydraulic pump (1), and this auxiliary hydraulic pump (1) is a hydraulic circuit for controlling, cooling and lubricating the transmission (
An automatic transmission characterized in that it is connected to 3) as required.
を生じさせる、ことを特徴とする請求項１記載の自動変速機。2. Automatic transmission according to claim 1, characterized in that a constant ratio pressure regulating valve (4) present in the transmission control device causes a connection of the auxiliary hydraulic pump (1).
ある、ことを特徴とする請求項１記載の自動変速機。3. Automatic transmission according to claim 1, characterized in that the valve that causes the connection of the auxiliary hydraulic pump (1) is a 3-port 2-position electromagnetic switching valve.
弁（４）の調整範囲の一部が差し向けられる、ことを特徴とする請求項２記載の
自動変速機。4. A part of the adjusting range of the proportional pressure regulating valve (4) is directed in order to connect the auxiliary hydraulic pump (1) via the hydraulic connecting valve (5). Item 2. The automatic transmission according to item 2.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19930356.8 | 1999-07-01 | ||
| DE1999130356 DE19930356A1 (en) | 1999-07-01 | 1999-07-01 | Automatic transmission |
| PCT/EP2000/005838 WO2001002755A1 (en) | 1999-07-01 | 2000-06-24 | Hydraulic control for an automatic gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003503666A true JP2003503666A (en) | 2003-01-28 |
Family
ID=7913305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001507960A Withdrawn JP2003503666A (en) | 1999-07-01 | 2000-06-24 | Automatic transmission |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1192370A1 (en) |
| JP (1) | JP2003503666A (en) |
| CN (1) | CN1355875A (en) |
| BR (1) | BR0012092A (en) |
| DE (1) | DE19930356A1 (en) |
| WO (1) | WO2001002755A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10125260A1 (en) * | 2001-05-23 | 2002-11-28 | Zahnradfabrik Friedrichshafen | Transmission for a motor vehicle drive comprises hydraulic lines connected to a common feed leading away from a transmission oil pump whose working pressure is produced as required |
| DE10207076A1 (en) * | 2002-02-20 | 2003-08-28 | Zahnradfabrik Friedrichshafen | Oil supply |
| US20040179962A1 (en) * | 2003-03-12 | 2004-09-16 | Hopper Mark L. | System and method for regulating pressure in an automatic transmission |
| US7925405B2 (en) | 2006-08-21 | 2011-04-12 | GM Global Technology Operations LLC | Torque distribution system with electronic power take-off module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2761388A (en) * | 1951-08-10 | 1956-09-04 | Gen Motors Corp | Hydraulic fluid system |
| US3181677A (en) * | 1960-11-03 | 1965-05-04 | Gen Motors Corp | Transmission |
| US3403583A (en) * | 1966-11-25 | 1968-10-01 | Gen Motors Corp | Transmission |
| DE2846904A1 (en) * | 1978-02-09 | 1979-08-16 | Gen Motors Corp | TRANSMISSION WITH AN ASSIGNED PRESSURE FLUID SOURCE OF VARIABLE FLOW RATE |
| DE3727633A1 (en) * | 1987-08-19 | 1989-03-02 | Manfred Rattunde | Cone pulley transmission with controlled quantity of pressure medium |
| DE4139611A1 (en) * | 1991-11-30 | 1993-06-03 | Zahnradfabrik Friedrichshafen | TRANSMISSION WITH A DISPLACEMENT PUMP |
| DE19641559A1 (en) * | 1996-10-09 | 1998-04-16 | Voith Turbo Kg | Drive unit with thermally controlled water pump |
| DE19750675C1 (en) * | 1997-11-15 | 1998-08-13 | Zahnradfabrik Friedrichshafen | Oil pump for automatic transmission of vehicle engine |
-
1999
- 1999-07-01 DE DE1999130356 patent/DE19930356A1/en not_active Ceased
-
2000
- 2000-06-24 CN CN 00808903 patent/CN1355875A/en active Pending
- 2000-06-24 WO PCT/EP2000/005838 patent/WO2001002755A1/en not_active Application Discontinuation
- 2000-06-24 BR BR0012092-8A patent/BR0012092A/en not_active Application Discontinuation
- 2000-06-24 JP JP2001507960A patent/JP2003503666A/en not_active Withdrawn
- 2000-06-24 EP EP00942122A patent/EP1192370A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1192370A1 (en) | 2002-04-03 |
| CN1355875A (en) | 2002-06-26 |
| DE19930356A1 (en) | 2001-01-04 |
| WO2001002755A1 (en) | 2001-01-11 |
| BR0012092A (en) | 2002-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20070904 |