CN1355875A - Automatic gear box - Google Patents
Automatic gear box Download PDFInfo
- Publication number
- CN1355875A CN1355875A CN 00808903 CN00808903A CN1355875A CN 1355875 A CN1355875 A CN 1355875A CN 00808903 CN00808903 CN 00808903 CN 00808903 A CN00808903 A CN 00808903A CN 1355875 A CN1355875 A CN 1355875A
- Authority
- CN
- China
- Prior art keywords
- pump
- automatic transmission
- transmission case
- valve
- service pump
- 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
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
The automatic gear box for motor vehicles comprises a gear box control, whereby a proportional pressure control valve is inserted into said gear box control, and a hydraulic pump which is used to control, cool and lubricate, whereby the capacity of said pump is a function of the engine speed. The gear box is provided with an additional hydraulic pump which can be coupled to the hydraulic circuit of the gear box whenever required.
Description
Affiliated field
The present invention relates to a kind of automatic transmission case of automobile, have the controller of gear-boxes that proportional pressure valve or two-position three way magnetic valve (3/2-Wege-Magnetventil) are housed in, and have one and be used to the oil hydraulic pump controlling, cool off and lubricate, its discharge capacity is the function of motor rotary speed.
Background technique
In many known automatic transmission case, oil hydraulic pump is so-called metering pump, and its discharge capacity increases pro rata with driving rotating speed.Usually under racing speed, set pump, wherein the discharge capacity of supplying with this moment must satisfy the gearbox that will supply with control, cooling and lubricated aspect requirement.
The flow that metering pump needs under high rotating speed is several times as much as essential flow.This just means that the duct cross section of pump must be especially greatly; In addition, the very high power loss of relevant pump makes the gearbox poor efficiency therewith.
Automatic transmission case is also proposed to use so-called variable displacement pump, and its discharge capacity can be suitable with demand better, however at low speed commonly used to middling speed motor rotary speed scope, the efficient of variable displacement pump is than metering pump difference; In addition, fuel feeding is very little when the motor slow-speed of revolution for variable displacement pump.
Proposition is used for the metering pump of a kind of oil suction adjusting of car automatic transmission case in EP 682756, it exactly is form with a kind of radial plunger pump of oil suction throttling, it provides a substantially invariable discharge capacity from a definite rotating speed, and this discharge capacity needs substantially invariable power consumpiton too.Yet the radial plunger pump of oil suction throttling still has the noise expansion and the big shortcoming that fluctuates.
The all-electric pump of in the automatic transmission case of automobile, packing in addition, but its shortcoming is: if whole fuel feeding of automatic transmission case must be guaranteed that all the load of automobile electrical network is just too big so by it.In addition, the working life of motor-drive pump is not long yet.
DE A 4139611 has set forth a kind of automatic transmission case that has the oil hydraulic pump that is made for internal gear pump, and this pump also is to provide a substantially invariable discharge capacity from a definite rotating speed, and this discharge capacity just needs substantially invariable power consumpiton too; But the result shows, it is too high or fluctuation is too big that this radial plunger pump is similar to internal gear pump hydraulic pressure loss power under the pressure of needs.Particularly under the situation of using radial plunger pump, the needed vibration damper of pump space is further improved the structure space demand in the gearbox owing to being located at.
Known be used for gearbox control, cooling and lubricated oil hydraulic pump are set in a corresponding work point usually, the result is: when rotating speed is lower than this operation point, the hydraulic pressure fuel feeding is not enough or when rotating speed is higher than this operation point, hydraulic pressure fuel feeding surplus, gearbox consumes unnecessary power, thereby can the efficient of gearbox be had a negative impact; Secondly can not make the fuel feeding and the motor rotary speed that conform with the requirement of gearbox oil hydraulic circuit irrelevant.
Summary of the invention
The objective of the invention is to, the automatic transmission case of a kind of automobile of following design can make the fuel feeding and the motor rotary speed that conform with the oil hydraulic circuit requirement irrelevant.
The sort of automatic transmission case based on beginning is described in detail realizes this purpose with the described feature of independent claims characteristic; Favourable structure is set forth in the dependent claims.
Therefore be provided with in this wise according to the present invention: a service pump integral body is arranged in the automatic transmission case, and this service pump can be connected the oil hydraulic circuit of gearbox with meeting the requirements.Service pump is connected by proportional pressure valve or an additional two-position three way magnetic valve that a traditional controller of gear-boxes has had, and wherein the part of regulation range will be used jointly, to connect service pump by a hydraulic sequence valve.This valve also can be used for handling the hydraulic brake of institute's tool, obtains following advantage thus:
A) need be about electrical equipment, cabling and electronic equipment aspect to the manipulation of service pump
Extra expenses;
B) but the increase incident of essential hydraulic pressure oil mass control ground (ereignisgesteuert) insert;
C) when using hydraulic brake, can cancel the energy-storage units that needs generally speaking;
D) Main Hydraulic Pump can be set at place, a low operation point, thus the numerical value of raising the efficiency;
E) under the situation of having cancelled energy-storage units,, no longer need air for the gearbox connection part
Joint, therefore the connection part with automobile reduces, and
F) when hydraulic brake turns round, the hydraulic fluid flow rate by heat exchanger or cooler can increase
Greatly, to give out more heat; Therefore can reduce the structure of heat exchanger or cooler
Long-pending.
Brief description of drawings
Illustrate in greater detail the present invention by means of accompanying drawing below, the schematic diagram of the service pump that expression can be handled by proportional pressure valve among the figure.
Embodiment's explanation
The structure that has the automatic transmission case of controller of gear-boxes and oil hydraulic pump is known by the professional person, so just shows in the accompanying drawing to understanding critical piece essential to the invention.Represent to be arranged at the service pump that to connect in the automatic transmission case with 1 among the figure with meeting the requirements, represent oil sump with 2, with 3 hydraulic oil sources of representing to lead to automatic transmission case, the oil pipe that promptly leads to control, cooling and lubricating fitting, represent the proportional pressure valve that has in the controller of gear-boxes with 4, and represent hydrovalves that service pump is connected with 5.As previously mentioned, connect service pump 1 by traditional proportional pressure valve that controller of gear-boxes had 4.The part of the control band of this proportional pressure valve 4 can be used for making service pump 1 to connect by sequence valve 5 jointly.As described in starting, this proportional pressure valve also can be used for handling a hydraulic brake that is connected with gearbox.Service pump 1 is no pressure idle running under its unaccessed state.
The guide look of mark mark
1 hydraulic pump
2 oil sumps
3 hydraulic oil sources
4 proportional pressure valves
5 sequence valves
Claims (4)
1. the automatic transmission case of automobile, have the controller of gear-boxes that a valve is housed in, and have one and be used to the oil hydraulic pump controlling, cool off and lubricate, its discharge capacity is the function of motor rotary speed, it is characterized in that, automatic transmission case has a service pump (1), and this service pump can conform with the gearbox oil hydraulic circuit (2) that is used to control, cool off and lubricate and require ground to connect.
2. according to the described automatic transmission case of claim 1, it is characterized in that the proportional pressure valve (4) that is had in the controller of gear-boxes plays the effect that service pump (1) is connected.
3. according to the described automatic transmission case of claim 1, it is characterized in that this valve is a two-position three way magnetic valve that plays the effect that makes service pump (1) connection.
4. according to the described automatic transmission case of claim 2, it is characterized in that the part of the regulation range of usage ratio pressure regulator valve (4) is so that connect service pump (1) by sequence valve (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19930356.8 | 1999-07-01 | ||
| DE1999130356 DE19930356A1 (en) | 1999-07-01 | 1999-07-01 | Automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355875A true CN1355875A (en) | 2002-06-26 |
Family
ID=7913305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00808903 Pending CN1355875A (en) | 1999-07-01 | 2000-06-24 | Automatic gear box |
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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7925405B2 (en) | 2006-08-21 | 2011-04-12 | GM Global Technology Operations LLC | Torque distribution system with electronic power take-off module |
Families Citing this family (3)
| 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 |
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 BR BR0012092-8A patent/BR0012092A/en not_active Application Discontinuation
- 2000-06-24 EP EP00942122A patent/EP1192370A1/en not_active Withdrawn
- 2000-06-24 WO PCT/EP2000/005838 patent/WO2001002755A1/en not_active Application Discontinuation
- 2000-06-24 JP JP2001507960A patent/JP2003503666A/en not_active Withdrawn
- 2000-06-24 CN CN 00808903 patent/CN1355875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7925405B2 (en) | 2006-08-21 | 2011-04-12 | GM Global Technology Operations LLC | Torque distribution system with electronic power take-off module |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1192370A1 (en) | 2002-04-03 |
| DE19930356A1 (en) | 2001-01-04 |
| WO2001002755A1 (en) | 2001-01-11 |
| JP2003503666A (en) | 2003-01-28 |
| BR0012092A (en) | 2002-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |