CN109027207A - A kind of automatic transmission hydraulic oil supply system - Google Patents
A kind of automatic transmission hydraulic oil supply system Download PDFInfo
- Publication number
- CN109027207A CN109027207A CN201811095215.0A CN201811095215A CN109027207A CN 109027207 A CN109027207 A CN 109027207A CN 201811095215 A CN201811095215 A CN 201811095215A CN 109027207 A CN109027207 A CN 109027207A
- Authority
- CN
- China
- Prior art keywords
- pump
- oil
- pressure
- supply system
- low
- 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
- F16H57/0441—Arrangements of pumps
-
- 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
- F16H57/0412—Cooling or heating; Control of temperature
-
- 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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0473—Friction devices, e.g. clutches or brakes
Abstract
The invention discloses a kind of automatic transmission hydraulic oil supply systems, it is characterised in that；It further include that corresponding three oil circuits are separately constituted by low-pressure machinery pump (20), high-pressure machinery pump (21), electronic pump (22).One is the oil circuit being made of low-pressure machinery pump (20), check valve (30), system safety valve (40), oil pump switching mechanical valve (41), oil pump switching pilot solenoid valve (42) and corresponding connecting pipeline；The second is the oil circuit being made of high-pressure machinery pump (21), check valve (31) and corresponding connecting pipeline；The third is the oil circuit of electronic pump (22), check valve (32) and corresponding connecting pipeline composition.Low-pressure machinery pump (20), high-pressure machinery pump (21) are driven by transmission input shaft jointly；Electronic pump (22) is by vehicle-mounted motor driven.This hydraulic oil supply system, under different operating conditions, each pump is adjustably controlled in corresponding working condition, and it can be according to the demand of hydraulic oil supply system, by the operating position for rationally switching oil pump switching mechanical valve (41), so that entire hydraulic oil supply system is always maintained at the output power of adaptation, meet requirement of the automatic transmission to hydraulic oil supply system pressure and flow.
Description
Technical field
The present invention relates to a kind of automatic transmission hydraulic oil supply system, a kind of specifically liquid of double-clutch automatic gearbox
Press oil supply system.It includes separately constituting corresponding three oil circuits by low-pressure machinery pump, high-pressure machinery pump, electronic pump.One is
By low-pressure machinery pump, check valve, system safety valve, oil pump switching mechanical valve, oil pump switching pilot solenoid valve and corresponding connecting tube
The oil circuit of line composition；The second is the oil circuit being made of high-pressure machinery pump, check valve and corresponding connecting pipeline；The third is electronic pump,
The oil circuit of check valve and corresponding connecting pipeline composition.Low-pressure machinery pump and high-pressure machinery pump are driven by transmission input shaft jointly；
Electronic pump 22 is by vehicle-mounted motor driven.
Background technique
Those skilled in the art know that current conventional automatic transmission hydraulic oil supply system is usually by single quantitative machine
Tool pump completes supply to entire hydraulic oil supply system, for system build pressure (combination and separation, gear shift for clutch), from
The lubrication of clutch and shafting.Due to being constant displacement pump, driving unit is transmission input shaft, and at high speed, oil pump feed can be big
Be more than greatly hydraulic oil supply system demand volume, cause the serious waste of oil pump output power, be automobile fuel consumption it is high one
A reason.Then occur by the way of variable-displacement pump, a certain range of adjusting is carried out to the output flow of oil pump and is controlled, or
By the way of constant displacement pump parallel connection electronic pump, to reduce gasoline consumption during parking waiting, but oil pump output power wave
Take still larger.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of automatic transmission hydraulic oil supply systems, pass through low-pressure machinery
Pump, high-pressure machinery pump, electronic pump these three types pump separately constitute corresponding three oil circuits, realize the conjunction of transmission pressure oil supply system
Reason supply.
In order to solve the above technical problems, automatic transmission hydraulic oil supply system of the invention, including is pumped by low-pressure machinery, is high
This 3 kinds press mechanical pressing pump, electronic pump pumps separately constitute corresponding three oil circuits.One is being pacified by low-pressure machinery pump, check valve, system
The oil circuit that full valve, oil pump switching mechanical valve, oil pump switching pilot solenoid valve and corresponding connecting pipeline form；The second is by high-pressure unit
The oil circuit of tool pump, check valve and corresponding connecting pipeline composition；The third is the oil of electronic pump, check valve and corresponding connecting pipeline composition
Road.Low-pressure machinery pump, high-pressure machinery pump are driven by transmission input shaft jointly；Electronic pump is by vehicle-mounted motor driven.
By pumping in low-pressure machinery, high-pressure machinery pumps, the respective rear end of electronic pump is respectively provided with corresponding check valve, mesh
Be when preventing corresponding oil pump from stopping working, pressure oil flows backward in oil pump so that oil pump invert, cause oil pump to damage, together
When prevent from system pressure from occurring pressure and rapid fluctuation system function is caused to break down.
Three kinds of operating positions are provided with by switching mechanical valve in oil pump, to adjust low-pressure machinery pump output purposes.Oil pump
Switch the first operating position of mechanical valve, i.e. initialization position, to access high tension loop, is carried out for additional high pressure mechanical pump
Hydraulic oil supply system builds pressure；Second operating position is access oil return circuit, is arrived for low-pressure machinery to be pumped the whole oil returns of output
The rear end of filter；Third operating position is access low tension loop, for low-pressure machinery to be pumped output all supply low-pressure sections
It uses.Oil pump switches mechanical valve and carries out drive control, switch operating position to it by oil pump switching pilot solenoid valve.
By being provided with the system safety valve being connected in parallel on the oil circuit after low-pressure machinery pumps concatenation check valve, which is
Overflow valve, it is therefore an objective to prevent when oil pump switches mechanical valve and switches to the first operating position by second, third operating position, entirely
The supply flow rate of hydraulic oil supply system is instantly increased, and the pressure of system is caused to sharply increase, and destroys the electrical of hydraulic oil supply system
Fallible component, such as pressure sensor, solenoid valve.
In general, the discharge capacity of low-pressure machinery pump is greater than the discharge capacity of high-pressure machinery pump, and high-pressure machinery pumpage and electronic pump are arranged
Amount quite, the setting side of corresponding three oil circuits is separately constituted by low-pressure machinery pump, high-pressure machinery pump, electronic pump these three types pump
Formula, one is each pump is in corresponding working condition under different operating conditions；The second is according to the demand of hydraulic oil supply system,
Switch the operating position of mechanical valve by rationally switching oil pump, so that entire hydraulic oil supply system is always maintained at output appropriate
Power.
In idling start and stop and vehicle coast period, engine stop work, therefore high-pressure machinery pump and low-pressure machinery pump also not
Work, the operation of vehicle motor-driven vehicle, electronics pump work, supplies entire hydraulic oil supply system at this time, the knot for clutch
The control for closing, hanging shelves and moving back shelves, system lubrication flow.
In normal driving process, electronic pump stops working, high-pressure machinery pump and low-pressure machinery pump work, and low-pressure machinery
The output of pump, can according to the needs of hydraulic oil supply system, by oil pump switch pilot solenoid valve drive oil pump switch mechanical valve into
The switching of row operating position, to adjust its purposes.When control system requires to combine clutch, hang shelves and move back shelves etc. to instantaneous flow
Under the big operating condition of demand, it is the first operating position that oil pump, which switches mechanical valve, at this point, low-pressure machinery pump output is supplied for auxiliary hydraulic pressure
Oil system is built pressure and is used；Under the operating condition little to momentary traffic demand, it is the second operating position, low-pressure machine that oil pump, which switches mechanical valve,
At the inlet port that tool pump output oil return is respectively pumped to filter rear end, at this moment, low-pressure machinery pump does not do work, and reduces entire hydraulic fuel feeding
The power of system；Under the system operating condition big to clutch lubrication and shafting lubrication flow demand, it is that oil pump, which switches mechanical valve,
Three operating positions, low-pressure machinery pump output are completely used for supplement clutch lubrication and shafting lubrication flow.
Detailed description of the invention
Fig. 1 is automatic transmission hydraulic oil supply system principle schematic diagram of the invention.
Specific embodiment
It elaborates with reference to the accompanying drawing with preferred embodiment to the present invention.
As shown in Figure 1 known to automatic transmission hydraulic oil supply system principle schematic diagram:
The oil sources 60 of automatic transmission hydraulic oil supply system is divided into three tunnels after the filtering of filter 50, pumps respectively at low-pressure machinery
20, high-pressure machinery pump 21, electronic pump 22 connect, and these three types of pump difference of low-pressure machinery pump 20, high-pressure machinery pump 21, electronic pump 22
Form corresponding three oil circuits.One is switching mechanical valve by low-pressure machinery pump 20, check valve 30, system safety valve 40, oil pump
41, the oil circuit of oil pump switching pilot solenoid valve 42 and corresponding connecting pipeline composition；The second is pumping 21, check valve 31 by high-pressure machinery
And the oil circuit of corresponding connecting pipeline composition；The third is the oil circuit of electronic pump 22, check valve 32 and corresponding connecting pipeline composition.This
Sample, under different operating conditions, each pump is in corresponding working condition, and can be according to the demand of hydraulic oil supply system, by reasonable
Switch the operating position of oil pump switching mechanical valve 41, so that entire hydraulic oil supply system is always maintained at output power appropriate.
Corresponding check valve is respectively provided in low-pressure machinery pump 20, high-pressure machinery pump 21, the respective rear end of electronic pump 22
30, check valve 31, check valve 32, it is therefore an objective to which when preventing corresponding oil pump from stopping working, pressure oil is flowed backward in oil pump, so that oily
Pump reversion, causes oil pump to damage, while preventing system pressure from occurring pressure and rapid fluctuation causes system function to break down.
High-pressure machinery pump 21 concatenation check valves 31 after oil outlet concatenate check valve 32 with electronic pump 22 after oil outlet simultaneously
Connection.Transmission control unit TCU can pass through the working condition of vehicle-mounted motor control electronic pump 22 according to driving requirements.It works normally
When, electronic pump 22 is in stop working state；When engine speed is lower, electronic pump 22 works, and is used for hydraulic oil supply system
Auxiliary builds pressure；When vehicle is stationary, engine is in stop state, enters working condition at electronic pump 22, in order to send out
Before motivation starting, carries out hanging shelves in advance and clutch combines, reduce the automobile starting time.
Oil pump switches the setting of mechanical valve 41, and there are three types of operating positions, to adjust 20 output purposes of low-pressure machinery pump.Oil pump is cut
The first operating position of mechanical valve 41, i.e. initialization position are changed, enters high tension loop 71 for connection pressure duct 14, for low
The progress hydraulic oil supply system of pump oil additional high pressure mechanical pump 21 of press mechanical pressing pump 20 builds pressure；Second operating position is connection oil return
Oil circuit 11, it is therefore intended that it is each that whole oil liquid of 20 supply of low-pressure machinery pump through oil return circuit 11 are flowed back into 50 rear end of filter
The oil inlet pipeline 10 of pump, for being recycled, in this way, need to suck a large amount of oil liquid when engine speed is higher, and filter
Oil filling capacity be certain, recycling of oil liquid, can reduce filter 50 it is logical oil burden, prevent filter 50 from breaking
Damage；Third operating position is that access low pressure line 15 enters low tension loop 70, for low-pressure machinery to be pumped 20 outputs all supplies
Shafting lubrication and the cooling use of clutch lubrication.
Oil pump switches mechanical valve 41 and carries out drive control, switch operating position to it by oil pump switching pilot solenoid valve 42
It sets.In this way, control and production difficulty can be reduced relative to the mode by Electrical heads control mechanical commutation valve.
It is provided with the safety valve 40 being connected in parallel on the oil circuit 13 after low-pressure machinery pump 20 is concatenated with check valve 30, when low
When press mechanical pressing pump 20 switches to the first operating position by second or third operating position, the supply flow rate of entire hydraulic oil supply system
It is instantly increased, the pressure of system is caused to sharply increase, at this moment safety valve 40 is in the open state, and pressure oil liquid is returned to through oil duct 12
The oil inlet oil circuit 10 of each pump of 50 rear end of filter prevents system pressure from crossing the electrical rapid wear of havoc hydraulic oil supply system
Element (such as pressure sensor, solenoid valve etc.).The valve uses overflow valve, and the cracking pressure being generally arranged is operating pressure
1.5 again.
Low-pressure machinery pump 20 is concatenated with high-pressure machinery pump 21 by common drive shaft, is driven together by transmission input shaft
It is dynamic.Electronic pump 22 is by vehicle-mounted motor driven.
The above description is only an embodiment of the present invention, has been not intended to limit the scope of the patents of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention content is directly or indirectly used in relevant technical field,
It is included within the scope of the present invention.
Claims (7)
1. a kind of automatic transmission hydraulic oil supply system, including low-pressure machinery pump (20), check valve (30), system safety valve
(40), the oil circuit of oil pump switching mechanical valve (41), oil pump switching pilot solenoid valve (42) and corresponding connecting pipeline composition, by high pressure
The oil circuit and electronic pump (22), check valve (32) and accordingly connect that mechanical pump (21), check valve (31) and corresponding connecting pipeline form
The oil circuit of adapter tube line composition, it is characterised in that: the low-pressure machinery pumps (20), high-pressure machinery pump (21), electronic pump (22) point
Corresponding three oil circuits are not formed, realize the fair supply of transmission pressure oil supply system.
2. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the oil pump switches mechanical
Valve (41) is provided with the operating position under three kinds of operating conditions, the first operating position, i.e. initialization position, to access pressure duct
(14) enter high tension loop (71), it is therefore intended that so that low-pressure machinery pumps (20) pump oil and carries out for additional high pressure mechanical pump (21)
Hydraulic oil supply system builds pressure；Second operating position is access oil return circuit (11), for low-pressure machinery pump (20) output is complete
Rear end of portion's oil return to filter (50)；Third operating position is that access low pressure line (15) enters low tension loop (70), is used for
By the whole supply shafting lubrications of low-pressure machinery pump (20) output and the cooling use of clutch lubrication.
3. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the oil pump switches mechanical
Valve (41) carries out drive control by oil pump switching pilot solenoid valve (42).
4. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the system safety valve
(40) it is set as being connected in parallel on the oil circuit after low-pressure machinery pump (20) is concatenated with check valve (30).
5. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the high-pressure machinery pump
(21) oil outlet after the oil outlet after concatenating check valve (31) concatenates check valve (30) with low-pressure machinery pump (20) is in parallel, constitutes
The main oil pump of hydraulic oil supply system.
6. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the low-pressure machinery pump
(20), high-pressure machinery pump (21) is concatenated by common drive shaft, is driven by same transmission input shaft.
7. automatic transmission hydraulic oil supply system described in accordance with the claim 1, it is characterised in that: the electronic pump (22) by
Vehicle-mounted motor driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095215.0A CN109027207A (en) | 2018-09-19 | 2018-09-19 | A kind of automatic transmission hydraulic oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095215.0A CN109027207A (en) | 2018-09-19 | 2018-09-19 | A kind of automatic transmission hydraulic oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109027207A true CN109027207A (en) | 2018-12-18 |
Family
ID=64617385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811095215.0A Pending CN109027207A (en) | 2018-09-19 | 2018-09-19 | A kind of automatic transmission hydraulic oil supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027207A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219971A (en) * | 2019-05-14 | 2019-09-10 | 中国第一汽车股份有限公司 | Automatic transmission electric hydaulic cooling and lubricating system and its control system |
| CN110388452A (en) * | 2019-07-26 | 2019-10-29 | 奇瑞汽车股份有限公司 | Hydraulic feed system, control method and automobile |
| CN116104929A (en) * | 2023-04-10 | 2023-05-12 | 中南大学 | Special gearbox hydraulic system for range extension |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367060A (en) * | 1978-10-02 | 1983-01-04 | Microdot Inc. | Method of making a seal nut |
| US4887950A (en) * | 1985-02-22 | 1989-12-19 | Bridgestone Corporation | Waterproof nut |
| CN201922544U (en) * | 2010-12-10 | 2011-08-10 | 宁波伊士通技术股份有限公司 | Control device of pressure relief mode |
| CN103899406A (en) * | 2012-12-25 | 2014-07-02 | 丰田自动车株式会社 | Vehicle |
| CN105090134A (en) * | 2014-05-23 | 2015-11-25 | 大众汽车有限公司 | Hydraulic supply apparatus |
| CN205639582U (en) * | 2016-04-29 | 2016-10-12 | 重庆长安汽车股份有限公司 | Double -clutch gearbox's oil feeding system |
| CN107939786A (en) * | 2017-12-22 | 2018-04-20 | 重庆青山工业有限责任公司 | Double-clutch automatic gearbox hydraulic oil supply system and motor vehicle |
| CN209146294U (en) * | 2018-09-19 | 2019-07-23 | 重庆青山工业有限责任公司 | A kind of automatic transmission hydraulic oil supply system |
-
2018
- 2018-09-19 CN CN201811095215.0A patent/CN109027207A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367060A (en) * | 1978-10-02 | 1983-01-04 | Microdot Inc. | Method of making a seal nut |
| US4367060B1 (en) * | 1978-10-02 | 1988-06-21 | Seal nut | |
| US4887950A (en) * | 1985-02-22 | 1989-12-19 | Bridgestone Corporation | Waterproof nut |
| CN201922544U (en) * | 2010-12-10 | 2011-08-10 | 宁波伊士通技术股份有限公司 | Control device of pressure relief mode |
| CN103899406A (en) * | 2012-12-25 | 2014-07-02 | 丰田自动车株式会社 | Vehicle |
| CN105090134A (en) * | 2014-05-23 | 2015-11-25 | 大众汽车有限公司 | Hydraulic supply apparatus |
| CN205639582U (en) * | 2016-04-29 | 2016-10-12 | 重庆长安汽车股份有限公司 | Double -clutch gearbox's oil feeding system |
| CN107939786A (en) * | 2017-12-22 | 2018-04-20 | 重庆青山工业有限责任公司 | Double-clutch automatic gearbox hydraulic oil supply system and motor vehicle |
| CN209146294U (en) * | 2018-09-19 | 2019-07-23 | 重庆青山工业有限责任公司 | A kind of automatic transmission hydraulic oil supply system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219971A (en) * | 2019-05-14 | 2019-09-10 | 中国第一汽车股份有限公司 | Automatic transmission electric hydaulic cooling and lubricating system and its control system |
| CN110219971B (en) * | 2019-05-14 | 2021-10-12 | 中国第一汽车股份有限公司 | Electric hydraulic cooling and lubricating system of automatic transmission and control system thereof |
| CN110388452A (en) * | 2019-07-26 | 2019-10-29 | 奇瑞汽车股份有限公司 | Hydraulic feed system, control method and automobile |
| CN116104929A (en) * | 2023-04-10 | 2023-05-12 | 中南大学 | Special gearbox hydraulic system for range extension |
| CN116104929B (en) * | 2023-04-10 | 2023-07-18 | 中南大学 | Special gearbox hydraulic system for range extension |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387598B (en) | Efficient oil source system of automatic transmission | |
| CN209146294U (en) | A kind of automatic transmission hydraulic oil supply system | |
| CN109237013B (en) | DCT (discrete cosine transformation) transmission hydraulic control system and method and automobile | |
| CN108167239B (en) | Double-pump oil supply system of automatic gearbox and working method thereof | |
| CN102168754B (en) | Hydraulic control system for wet-type double-clutch automatic transmission | |
| CN109027207A (en) | A kind of automatic transmission hydraulic oil supply system | |
| CN101809329A (en) | Hydraulic pressure supply device for industrial vehicle | |
| CN102414455A (en) | Hydraulic energy source for supplying a downstream hydraulic system with hydraulic energy | |
| CN109139895A (en) | A kind of double pump fuel feeding and lubricating and cooling system | |
| CN102102758A (en) | Method of operating an auxiliary electric pump | |
| CN104633084B (en) | It include the gear arrangement of the hydraulic system with pump installation | |
| EP2610517B1 (en) | Hydraulic system, driving system and electric vehicle | |
| CN110469663A (en) | A kind of transmission hydraulic control system and vehicle | |
| CN102996455A (en) | Oil injection screw compressor lubrication pressure energy recovery system | |
| CN106321805A (en) | A hydraulic control system of a wet-type double-clutch gearbox, a gearbox, a TCU and an automobile | |
| CN108571584A (en) | A kind of full power shift commutation gear box of tractor hydraulic control system | |
| KR101137163B1 (en) | Hydraulic drive for mobile vehicles | |
| CN208397275U (en) | The dual-clutch transmission hydraulic system of double pump driving | |
| CN215980192U (en) | Hydraulic system of hybrid power vehicle | |
| CN107939786A (en) | Double-clutch automatic gearbox hydraulic oil supply system and motor vehicle | |
| EP1482215A1 (en) | Hydraulic arrangement for a vehicular transmission | |
| EP2677210B1 (en) | Gearbox hydraulic circuit | |
| CN206682282U (en) | A kind of double pump system for being used for double clutch gearboxes | |
| CN207609647U (en) | Double-clutch automatic gearbox hydraulic oil supply system and motor vehicle | |
| CN112943916A (en) | Hydraulic control system for automatic transmission and working equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |