CN109139897A - A kind of 6AT automatic speed transmission electrohydraulic control system - Google Patents
A kind of 6AT automatic speed transmission electrohydraulic control system Download PDFInfo
- Publication number
- CN109139897A CN109139897A CN201811107806.5A CN201811107806A CN109139897A CN 109139897 A CN109139897 A CN 109139897A CN 201811107806 A CN201811107806 A CN 201811107806A CN 109139897 A CN109139897 A CN 109139897A
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- CN
- China
- Prior art keywords
- oil
- valve
- main
- pressure regulator
- regulator valve
- 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
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Classifications
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- 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
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/14—Fluid pressure control
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- 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
- F16H57/0446—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control the supply forming part of the transmission control unit, e.g. for automatic transmissions
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
- F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
-
- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/48—Control of exclusively fluid gearing hydrodynamic
- F16H61/50—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit
-
- 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
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of 6AT automatic speed transmission electrohydraulic control systems, it is characterized in that including including fuel tank, oil pump, transmission control module, main pressure regulator valve, secondary pressure regulator valve, pressure reducing valve, electromagnetic switch valve, clutch；The import of oil pump is connect by pipeline with fuel tank, the outlet of oil pump is connected to main oil pipe, main oil pipe is connect with the oil inlet of the oil inlet of fluid torque-converter, two oil inlets of main pressure regulator valve and multiple electromagnetic switch valves respectively, the oil outlet of main pressure regulator valve and the oil inlet of pressure reducing valve connect, and the oil outlet of pressure reducing valve is connected to main oil pipe；The oil outlet of each electromagnetic switch valve is connected with a clutch by pipeline, is connected with secondary pressure regulator valve and buffer on the pipeline；Transmission control module is connect with oil pump.The present invention can still ensure that the basic lubricating function of lubricating system, high reliablity when flow system flow is inadequate or when system principal pressure breaks down；The advantage that the present invention also has structure simple, compact, at low cost.
Description
Technical field
The invention belongs to the technical fields of automatic speed transmission electrohydraulic control, and in particular to a kind of 6AT automatic speed transmission electrohydraulic
Control system.
Background technique
Energy-saving and emission-reduction, it is people-oriented be world today's development of automobile theme, comply with this theme, improve transmission efficiency,
Optimizing power matching becomes the Main Trends of The Development of automatic transmission.In this case, all automatic transmission, subtracting
Small size and weight improve power density, and Optimal Control Strategy is as main tackling key problem technology.The shortcomings that current electro-hydraulic module is body
Product is big, and with increasing for solenoid valve quantity, volume is further increased, and influences the size and power density of speed changer.And valve
The oil duct of body is sufficiently complex, therefore losing along stroke pressure for oil liquid will increase with local pressure loss.The parameters such as oil duct wall thickness by
It is formed on die cast precision, valve body manufacture difficulty and higher cost.
Various disablers are considered very comprehensive by previous automatic speed transmission electrohydraulic control system, and hydraulic principle compares
Complexity, oil circuit is complicated, and solenoid valve and spool quantity are more, to cause its corresponding manufacturing cost also just very high.With vapour
The problem of development of vehicle automatic transmission electron controls technology, various disablers, relies solely on electronic control technology and can be solved
Certainly.For example, by optimizing and improving automatic transmission electron controls technology, gear can carry out quick according to automobile running condition
The problems such as missed shift will not occur or change two grades when switching, and shifting gears.
Automatic speed transmission electrohydraulic control system of the present invention considers the functional requirement of domestic automatic transmission, in conjunction with domestic hydraulic
The technological level and product processing cost of valve block, simplify electro-hydraulic module oil duct significantly, solenoid valve and spool number
Amount greatly reduces, and reduces the processing cost of valve body and the purchase cost of spool.
Summary of the invention
It is simple, compact that in order to solve the above technical problem, the present invention provides a kind of structures, 6AT fluid drive at low cost
Device electrohydraulic control system.
The technical solution adopted by the present invention is that: a kind of 6AT automatic speed transmission electrohydraulic control system, including fuel tank, oil pump, change
Fast device control module, main pressure regulator valve, secondary pressure regulator valve, pressure reducing valve, electromagnetic switch valve, clutch；The import of oil pump passes through pipeline
Connect with fuel tank, the outlet of oil pump is connected to main oil pipe, main oil pipe respectively with the oil inlet of fluid torque-converter, main pressure regulator valve two
The connection of the oil inlet of a oil inlet and multiple electromagnetic switch valves, the oil outlet of main pressure regulator valve and the oil inlet of pressure reducing valve connect, and subtract
The oil outlet of pressure valve is connected to main oil pipe；The oil outlet of each electromagnetic switch valve is connected with a clutch, the pipe by pipeline
Secondary pressure regulator valve and buffer are connected on road；Transmission control module is connect with oil pump.
In above-mentioned 6AT automatic speed transmission electrohydraulic control system, the pipeline that the oil pump is connect with fuel tank was equipped with
Filter.
In above-mentioned 6AT automatic speed transmission electrohydraulic control system, the pipeline that fuel pump outlet is connect with main oil pipe is equipped with one
Branch pipe is linked back fuel tank, which is equipped with overflow valve.
Compared with prior art, the beneficial effects of the present invention are:
Transmission control module of the invention can make the corresponding stream of hydraulic oil pump output according to the gear signal of automatic transmission
Magnitude；The oil pressure of main pressure regulator valve and decompression valve regulation working connection, when working connection oil pressure is larger, main pressure regulator valve and pressure reducing valve will beat
Overflow port is opened, working connection is depressurized；A part of oil liquid of working connection enters the oil feeding line of clutch, another part oil liquid
Into lubricating system and fluid torque-converter；When flow system flow is inadequate, can preferentially guarantee lubricating system, prevent lubrication not enough and
Caused transmission failure still ensures that the basic lubricating function of lubricating system, reliability when system principal pressure breaks down
It is high.The advantage that the present invention also has structure simple, compact, at low cost.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the invention.
Fig. 2 is secondary pressure regulator valve dynamic balance figure of the invention.
Fig. 3 is that main oil pipe pressure of the invention adjusts hydraulic schematic diagram.
Specific embodiment
The present invention will be further described below with reference to the drawings.
As shown in Figure 1, the present invention includes fuel tank 3, oil pump 5, transmission control module 2, main pressure regulator valve 7, secondary pressure regulator valve
11, pressure reducing valve 1, electromagnetic switch valve 8, buffer 9 and clutch 10.The import of oil pump 5 is connect by pipeline with fuel tank 3, the pipe
Road is equipped with a branch pipe and is linked back fuel tank, which is equipped with overflow valve 6.The pipeline is equipped with filter 4.The outlet of oil pump 5 with
Main oil pipe connection, main oil pipe respectively with the oil inlet of fluid torque-converter, two oil inlets of main pressure regulator valve 7 and multiple electromagnetic switch
The oil inlet of valve 8 connects, and the oil outlet of main pressure regulator valve 7 is connect with the oil inlet of pressure reducing valve 1, the oil outlet of pressure reducing valve 1 and main oil
Pipe connection.The oil outlet of each electromagnetic switch valve 8 is connected with a clutch 10 by pipeline, is connected with secondary tune on the pipeline
Pressure valve 11 and buffer 9.Transmission control module is connect with oil pump 5.
Transmission control module TCU is according to gear signal, the speed signal etc. of automatic transmission, and transmitting electric signal is to corresponding
Secondary pressure regulator valve 11 and need to open electromagnetic switch valve 8, make target clutch 10 combine.Secondary pressure regulator valve 11 receives telecommunications
After number, change its pressure regulation spectrum by changing the size of self electromagnetism power.As shown in Fig. 2, according to secondary pressure regulator valve
Dynamic balance relation can calculate the pressure value into the oil liquid of clutch:
;
In formula,For the pressure value (pa) of the oil liquid of entrance clutch；d3It is valve core diameter's (see figure 2) of secondary pressure regulator valve；
For electromagnetic force (N).
When the present invention uses: transmission control module TCU of the invention makes hydraulic according to the gear signal of automatic transmission
Oil pump exports corresponding flow value.
Main pressure regulator valve 7 and pressure reducing valve 1 adjust the oil pressure of main oil pipe, when main main oil pipe pressure is larger, main pressure regulator valve 7 and decompression
Valve 1 will open overflow port, depressurize to main oil pipe.As shown in figure 3, being closed according to the dynamic balance of main pressure regulator valve 7 and pressure reducing valve 1
System, can calculate the set pressure value of working connection:
;
;
By above two formula, can obtain:
;
In formula:
d1And d2It is the valve core diameter of main pressure regulator valve, d0It is the valve core diameter of pressure reducing valve;(see Fig. 2 and Fig. 3);
For the set pressure value (N) of main oil pipe
For the oil liquid pressure value (pa) for depressurizing valve outlet；
For pressure reducing valve electromagnetic force (N)；
For main pressure regulator valve spring force (N).
When main oil pipe pressure is no more thanWhen, main pressure regulator valve 7 will not open overflow port,It is just the setting of working connection
Pressure value.A part of oil liquid of main oil pipe enters the oil feeding line of clutch, and another part oil liquid enters lubricating system and fluid power
Torque-converters, the design are mainly to consider the situation inadequate when flow system flow, preferentially guarantee lubricating system, prevent lubrication from not enough drawing
The transmission failure risen, while also considering to still ensure that the basic lubrication function of lubricating system when system principal pressure breaks down
Energy.
When the oil feeding line of clutch 10 is opened, into pressure tune of the oil liquid by secondary pressure regulator valve 11 of clutch 10
Section, when oil liquid pressure is larger, secondary 11 overflow port of pressure regulator valve is opened, and reduces the oil pressure for entering clutch 10；On branch's oil circuit
Buffer play the role of reduce oil liquid pressure fluctuation.
Claims (3)
1. a kind of 6AT automatic speed transmission electrohydraulic control system, it is characterized in that include including fuel tank, oil pump, transmission control module,
Main pressure regulator valve, secondary pressure regulator valve, pressure reducing valve, electromagnetic switch valve, clutch；The import of oil pump is connect by pipeline with fuel tank, oil
The outlet of pump is connected to main oil pipe, main oil pipe respectively with the oil inlet of fluid torque-converter, two oil inlets of main pressure regulator valve and more
The oil inlet of a electromagnetic switch valve connects, and the oil outlet of main pressure regulator valve and the oil inlet of pressure reducing valve connect, the oil outlet of pressure reducing valve
It is connected to main oil pipe；The oil outlet of each electromagnetic switch valve is connected with a clutch by pipeline, is connected on the pipeline secondary
Grade pressure regulator valve and buffer；Transmission control module is connect with oil pump.
2. 6AT automatic speed transmission electrohydraulic control system according to claim 1, it is characterized in that: the oil pump and fuel tank
The pipeline of connection is equipped with filter.
3. 6AT automatic speed transmission electrohydraulic control system according to claim 2, it is characterized in that: fuel pump outlet and main oil pipe
The pipeline of connection is equipped with a branch pipe and is linked back fuel tank, which is equipped with overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107806.5A CN109139897A (en) | 2018-09-21 | 2018-09-21 | A kind of 6AT automatic speed transmission electrohydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107806.5A CN109139897A (en) | 2018-09-21 | 2018-09-21 | A kind of 6AT automatic speed transmission electrohydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139897A true CN109139897A (en) | 2019-01-04 |
Family
ID=64823329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107806.5A Pending CN109139897A (en) | 2018-09-21 | 2018-09-21 | A kind of 6AT automatic speed transmission electrohydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894372A (en) * | 2022-03-21 | 2022-08-12 | 中国北方车辆研究所 | Derailleur pressure measurement device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421420A (en) * | 2013-08-30 | 2015-03-18 | 本田技研工业株式会社 | Fluid pressure control device |
| KR20150080503A (en) * | 2012-10-31 | 2015-07-09 | 알리손 트랜스미션, 인크. | Method of controlling a hydraulic pressurization system of a transmission |
| US20150192201A1 (en) * | 2014-01-08 | 2015-07-09 | Allison Transmission, Inc. | System for adjusting fluid volume in a transmission and method thereof |
| CN107061723A (en) * | 2017-05-11 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic control system of automatic speed changer |
-
2018
- 2018-09-21 CN CN201811107806.5A patent/CN109139897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150080503A (en) * | 2012-10-31 | 2015-07-09 | 알리손 트랜스미션, 인크. | Method of controlling a hydraulic pressurization system of a transmission |
| CN104421420A (en) * | 2013-08-30 | 2015-03-18 | 本田技研工业株式会社 | Fluid pressure control device |
| US20150192201A1 (en) * | 2014-01-08 | 2015-07-09 | Allison Transmission, Inc. | System for adjusting fluid volume in a transmission and method thereof |
| CN107061723A (en) * | 2017-05-11 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of hydraulic control system of automatic speed changer |
Non-Patent Citations (1)
| Title |
|---|
| 唐德修等: "《汽车流体传动与控制技术》", 31 March 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894372A (en) * | 2022-03-21 | 2022-08-12 | 中国北方车辆研究所 | Derailleur pressure measurement device |
| CN114894372B (en) * | 2022-03-21 | 2023-09-29 | 中国北方车辆研究所 | Pressure measuring device of speed changer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |