CN210371947U - Lubrication and cooling hydraulic system for three-clutch transmission - Google Patents
Lubrication and cooling hydraulic system for three-clutch transmission Download PDFInfo
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- CN210371947U CN210371947U CN201920325260.4U CN201920325260U CN210371947U CN 210371947 U CN210371947 U CN 210371947U CN 201920325260 U CN201920325260 U CN 201920325260U CN 210371947 U CN210371947 U CN 210371947U
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Abstract
A lubricating and cooling hydraulic system of a three-clutch transmission is characterized in that the downstream end of an electric pump is connected with a main oil circuit, the main oil circuit is connected with a first electromagnetic valve in parallel, the main oil circuit is connected with a cooler through a cooling oil circuit, the downstream end of the cooler is connected with a cooling oil delivery oil circuit through a filter with a bypass valve, a second electromagnetic valve is arranged between the main oil circuit and the cooling oil delivery oil circuit, the cooling oil delivery oil circuit is connected with a gear box oil supply pipeline and a second filter in parallel, a first throttling valve is arranged on the gear box oil supply pipeline, the downstream end of the second filter is connected with two oil circuits in parallel, one oil circuit is provided with a second throttling valve and is communicated with an oil supply branch of a third clutch, a third throttling valve is arranged on the oil supply branch, the other oil circuit is connected with an oil inlet hole of the, and a fourth throttling valve is arranged on the oil supply branch, and a second oil outlet of the third electromagnetic valve is connected between the second throttling valve and the third throttling valve through an oil supplementing oil path.
Description
Technical Field
The utility model relates to a hydraulic system, in particular to lubrication and cooling hydraulic system of three clutch derailleur.
Background
The hydraulic system of the prior double-clutch transmission generally uses a single oil pump as a power source, although the tolerance of the control, cooling and lubrication parts of the hydraulic system to pressure and pollution is different, the phenomena of weak tolerance to pollutants, high pressure requirement, low requirement pressure of the lubrication and cooling system, high tolerance to pollutants, low requirement on flow of the gear shifting and clutch actuating mechanism, high requirement on flow of the lubrication and cooling system and the like exist, but the hydraulic system of the prior double-clutch transmission adopts the oil pump as the power source to independently control the system, and can meet the requirements of the hydraulic system to the control, cooling and lubrication parts. However, with the advent of transmissions with three clutches, the demand for lubrication and cooling flow is greater than that of a dual clutch transmission, and therefore the demand for lubrication and cooling of the three clutches is also higher, and if a single oil pump is still used as a power source, the way of a hydraulic system of the transmission needs to be solved urgently, otherwise the demands of the hydraulic system on control, cooling and lubrication of each part are difficult to meet.
Disclosure of Invention
The utility model aims at providing a lubrication and cooling hydraulic system of three clutch derailleur to the not enough that prior art corresponds, it can be effective and the lubricated cooling problem of energy-conserving solution three clutch derailleur.
The utility model aims at adopting the following scheme to realize: a lubricating and cooling hydraulic system of a three-clutch transmission comprises an electric pump and a first electromagnetic valve, wherein an upstream end oil way of the electric pump is communicated with an oil tank through a first filter, a downstream end of the electric pump is connected with a main oil way, an oil inlet of the first electromagnetic valve is connected with the main oil way through an oil pipe, an oil return port of the first electromagnetic valve is connected with an upstream end oil way of the electric pump through an oil pipe for pressure relief, a control end of the first electromagnetic valve is connected with the main oil way, the main oil way is connected with an upstream end of a cooler through a cooling oil way, a downstream end of the cooler is connected with a cooling oil conveying oil way through a filter with a bypass valve, a second electromagnetic valve is arranged between the main oil way and the cooling oil conveying oil way, an oil inlet end of the second electromagnetic valve is connected with the main oil way, an oil outlet end of the second electromagnetic valve is connected with the cooling oil, the rear feedback oil inlet end is connected with a cooling oil delivery oil way which is connected with an oil supply pipeline of the gear box and a second filter in parallel, a first throttle valve is arranged on an oil supply pipeline of the gear box, the downstream end of the second filter is connected with two oil ways in parallel, one of the through oil paths of the third clutch is communicated with the oil supply branch of the third clutch, the through oil path of the third clutch is provided with a second throttle valve, the oil supply branch of the third clutch is provided with a third throttle valve, and the other one is an oil supply path of a third electromagnetic valve, the third electromagnetic valve oil supply path is connected with the oil inlet hole of the third electromagnetic valve, the first oil outlet hole of the third electromagnetic valve is connected with the oil supply branch of the first clutch and the second clutch, and a fourth throttling valve is arranged on the oil supply branch, and a second oil outlet of the third electromagnetic valve is connected between the second throttling valve and the third throttling valve through an oil supplementing oil path.
The first electromagnetic valve is a two-position two-way electro-hydraulic proportional pressure control valve.
The second electromagnetic valve is a force feedback proportional electromagnetic valve.
The third electromagnetic valve is a three-position three-way electromagnetic valve.
And the oil return end of the first electromagnetic valve is connected with an upstream end oil way between the electric pump and the first filter through an oil pipe.
The upstream end of the bypass valve of the filter with the bypass valve is connected between the filter and the cooler, and the downstream end of the bypass valve is connected with the cooling oil delivery oil path.
The electric pump is a gear pump or a vane pump.
The motor of the electric pump is a permanent magnet synchronous motor.
By adopting the technical scheme, the upstream end oil way of the electric pump is communicated with the oil tank through the first filter, the downstream end of the electric pump is connected with the main oil way, the oil inlet of the first electromagnetic valve is connected with the main oil way through the oil pipe, the oil return port of the first electromagnetic valve is connected with the upstream end oil way of the electric pump through the oil pipe for pressure relief, and the control end of the first electromagnetic valve is connected with the main oil way. The oil return port of the first electromagnetic valve is connected with the upstream end oil way of the electric pump through an oil pipe instead of being directly connected with the oil tank, and the first electromagnetic valve can reduce the hydraulic loss of lubricating oil by utilizing return oil pressure when the first electromagnetic valve performs pressure relief work, so that the system efficiency is improved, and the energy and the time are saved.
The main oil way is connected with the upstream end of the cooler through the cooling oil way, the downstream end of the cooler is connected with the cooling oil delivery oil way through a filter with a bypass valve, a second electromagnetic valve is arranged between the main oil way and the cooling oil delivery oil way, the oil inlet end of the second electromagnetic valve is connected with the main oil way, the oil outlet end of the second electromagnetic valve is connected with the cooling oil delivery oil way, the front feedback oil inlet end of the second electromagnetic valve is connected with the main oil way, and the rear feedback oil inlet end is connected with the cooling oil delivery oil way. The function of the filter with the bypass valve is as follows: when the filter is blocked due to excessive impurities contained in the filter along with the increase of the working time, the bypass valve is opened to ensure that the cooling branch can still normally work when the filter is blocked; when the system normally works, the electromagnetic force of the second electromagnetic valve and the pressure of the front feedback oil inlet end are smaller than the sum of the spring force of the second electromagnetic valve and the pressure of the rear feedback oil inlet end, the second electromagnetic valve is in a closed state, the oil inlet end of the second electromagnetic valve is not communicated with the oil outlet end of the second electromagnetic valve, and oil can only enter the third electromagnetic valve and the oil supply pipeline of the gear box through the cooling oil way and the cooling oil conveying oil way. When the pressure in the cooling oil path and the cooling oil delivery oil path is too high, the sum of the electromagnetic force of the second electromagnetic valve and the pressure at the front feedback oil inlet end is larger than the sum of the spring force of the second electromagnetic valve and the pressure at the rear feedback oil inlet end, the second electromagnetic valve is opened, the oil inlet end of the second electromagnetic valve is communicated with the oil outlet end of the second electromagnetic valve, hydraulic oil of the main oil path is shunted, a cooler and a filter on the cooling oil path are protected by pressure relief, and the cooler and the filter are prevented from being damaged due to overhigh pressure of the oil path at the upstream end of the cooler and the filter.
The cooling oil conveying oil path is connected with a gear box oil supply pipeline and a second filter in parallel, a first throttle valve is arranged on the gear box oil supply pipeline, two oil paths are connected in parallel at the downstream end of the second filter, a straight-through oil path of a third clutch is communicated with an oil supply branch of the third clutch, a second throttle valve is arranged on the straight-through oil path of the third clutch, a third throttle valve is arranged on an oil supply branch of the third clutch, the other oil supply branch is an oil supply path of a third electromagnetic valve, the oil supply path of the third electromagnetic valve is connected with an oil inlet of the third electromagnetic valve, a first oil outlet of the third electromagnetic valve is connected with the oil supply branches of the first clutch and the second clutch, a fourth throttle valve is arranged on the oil supply branch, and a second oil outlet of the third electromagnetic valve is connected between the second throttle valve and the third. The filter is adopted to reduce impurities, prevent the clamping stagnation of the electromagnetic valve and the abrasion of the clutch, and adjust and control the flow of the oil way through the electromagnetic valve and the throttle valve, so that unnecessary energy consumption loss is avoided and the cost is effectively reduced while the oil supply requirements of cooling and lubricating the clutch and the gear box are ensured.
And the oil return end of the first electromagnetic valve is connected with an upstream end oil way between the electric pump and the first filter through an oil pipe. Instead of being directly connected to the oil tank, the oil return pressure can be utilized to reduce the hydraulic loss of the lubricating oil, the system efficiency is improved, and the energy and the time are saved.
The upstream end of the bypass valve of the filter with the bypass valve is connected between the filter and the cooler, the downstream end of the bypass valve is connected with the cooling oil delivery oil path, and when the filter contains excessive impurities and reaches the end of the service life, the bypass valve is opened to ensure the normal work of the cooling branch.
The utility model has the advantages that: the motor is adopted for controlling, the flow of the oil pump can be accurately controlled by adjusting the rotating speed of the motor, energy is saved and consumption is reduced while system requirements are met, impurities are reduced by installing a filter, electromagnetic valve clamping stagnation and clutch abrasion are prevented, the safety of the oil pump and the whole system is protected by electromagnetic valve pressure relief, the flow of an oil way is adjusted by a throttle valve, the use of the electromagnetic valve is reduced, unnecessary energy consumption loss is avoided, and the cost is effectively reduced.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic connection diagram of the present invention.
1. An oil tank, 2, a first filter, 3, an upstream end oil path, 4, an oil return port, 5, an electric motor, 6, an electric pump, 8, a control end, 9, a main oil path, 10, a first electromagnetic valve, 12, an oil inlet, 13, a cooling oil path, 15, a cooler, 16, a bypass valve, 17, a front feedback oil inlet, 18, an oil inlet, 20, a filter with a bypass valve, 21, a rear feedback oil inlet, 22, a second electromagnetic valve, 23, an oil outlet, 24, a cooling oil delivery path, 25, a third electromagnetic valve oil supply path, 26, a second filter, 27, a second throttle valve, 28, a through oil path of a third clutch, 29, an oil inlet, 30, a gearbox oil supply path, 31, a third electromagnetic valve, 32, a first oil outlet, 33, a first throttle valve, 34, an oil supply branch of the first and second clutches, 35, a fourth throttle valve, 36, an oil supply path, 37, an oil supply branch of the third clutch, 38. and a third throttle valve 39, a second oil outlet.
Detailed Description
Referring to fig. 1, a lubricating and cooling hydraulic system of a triple clutch transmission comprises an electric pump 6 and a first electromagnetic valve 10, wherein the electric pump 6 is a gear pump or a vane pump, the gear pump is preferably adopted in the embodiment, a motor 5 of the electric pump 6 is a permanent magnet synchronous motor, the output flow and the pressure of the oil pump can be adjusted by adjusting the rotating speed of the motor, and the energy consumption is reduced while the system requirement is ensured. The first electromagnetic valve 10 is a two-position two-way electro-hydraulic proportional pressure control valve. The upstream end oil way 3 of the electric pump 6 is communicated with the oil tank 1 through a first filter 2, the downstream end of the electric pump 6 is connected with a main oil way 9, an oil inlet 12 of a first electromagnetic valve 10 is connected with the main oil way 9 through an oil pipe, an oil return port 4 of the first electromagnetic valve 10 is connected with the upstream end oil way 3 between the electric pump 6 and the first filter 2 through an oil pipe for pressure relief, a control end 8 of the first electromagnetic valve 10 is connected with the main oil way 9, the main oil way 9 is connected with the upstream end of a cooler 15 through a cooling oil way 13, the downstream end of the cooler 15 is connected with a cooling oil delivery oil way 24 through a filter 20 with a bypass valve, the upstream end of a bypass valve 16 of the filter 20 with a bypass valve is connected between the filter and the cooler 15, and the downstream end of the bypass valve 16 is connected with the cooling oil delivery. A second electromagnetic valve 22 is arranged between the main oil path 9 and the cooling oil delivery oil path 24, and the second electromagnetic valve 22 is a force feedback proportional electromagnetic valve. The oil inlet end 18 of the second electromagnetic valve 22 is connected with the main oil path 9, the oil outlet end 23 of the second electromagnetic valve 22 is connected with the cooling oil delivery oil path 24, the front feedback oil inlet end 17 of the second electromagnetic valve 22 is connected with the main oil path 9, the rear feedback oil inlet end 21 is connected with the cooling oil delivery oil path 24, the cooling oil delivery oil path 24 is connected with the gearbox oil supply pipeline 30 and the second filter 26 in parallel, the gearbox oil supply pipeline 30 is provided with a first throttle valve 33, the downstream end of the second filter 26 is connected with two oil paths in parallel, one through oil path 28 of the third clutch is communicated with a branch 37 of the third clutch, the through oil path 28 of the third clutch is provided with a second throttle valve 27, the oil supply branch 37 of the third clutch is provided with a third throttle valve 38, the other one is a third electromagnetic valve oil supply path 25, and the third electromagnetic valve oil supply path 25 is connected with the oil inlet, the first oil outlet 32 of the third electromagnetic valve 31 is connected with the oil supply branch 34 of the first and second clutches, the oil supply branch 34 is provided with a fourth throttle valve 35, the second oil outlet 39 of the third electromagnetic valve 31 is connected between the second throttle valve 27 and the third throttle valve 38 through an oil supplementing oil path 36, and the third electromagnetic valve 31 is a three-position three-way electromagnetic valve.
The hydraulic system works by controlling flow distribution through four throttle valves, after the electric pump 6 works to enable oil to enter a main oil way 9 from an oil tank 1 through a first filter 2 and the electric pump 6, the oil pressure is normal, a first electromagnetic valve 10 is in a closed state, and the oil flows into a cooling oil way 13 through the main oil way 9; when the oil pressure is too high, namely the sum of the hydraulic pressure of the control end 8 of the first electromagnetic valve 10 and the electromagnetic force of the first electromagnetic valve 10 exceeds the spring force of the spring of the first electromagnetic valve 10, the first electromagnetic valve 10 is opened, one part of the oil flows into the cooling oil path 13 through the main oil path 9, and the other part of the oil flows into the electric pump 6 again from the oil return port 4 of the first electromagnetic valve 10 through the oil inlet 12 of the first electromagnetic valve 10 and enters the system again.
When the bypass valve 16 in the filter 20 with the bypass valve is in a closed state, the hydraulic pressure in the front feedback oil inlet end 17 and the electromagnetic force of the second electromagnetic valve 22 are smaller than the sum of the spring force of the spring in the second electromagnetic valve and the hydraulic pressure in the rear feedback oil inlet end 21, the second electromagnetic valve 22 is also in a closed state, the oil inlet end 18 and the oil outlet end 23 of the second electromagnetic valve 22 are not communicated, and oil can only enter the cooling oil delivery oil path 24 through the cooling oil path 13; when the hydraulic pressure in the cooling oil path 13 is too high, the hydraulic pressure in the front feedback oil inlet end 17 and the electromagnetic force of the second electromagnetic valve 22 are greater than the sum of the spring force of the spring in the second electromagnetic valve and the hydraulic pressure in the rear feedback oil inlet end 21, so that the second electromagnetic valve 22 is switched to an open state, the oil inlet end 18 and the oil outlet end 23 of the second electromagnetic valve 22 are communicated, the purpose of pressure relief of the cooling oil path 13 by oil liquid shunting is achieved, and the filter 20 with a bypass valve and the cooler 15 are protected.
After the oil liquid enters the cooling oil delivery oil path 24, one part of the oil liquid enters the gear box from the oil supply pipeline 30 of the gear box through the first throttling valve 33, the other part of the oil liquid passes through the second filter 26 and then is divided into two paths, one path of the oil liquid passes through the through oil path 28 of the third clutch and enters the third clutch from the oil supply branch 37 of the third clutch through the second throttling valve 27 and the third throttling valve 38, the other path of the oil liquid enters the third electromagnetic valve 31, and the flow direction of the oil liquid is distributed through the change of the position of the valve core.
When the first and second clutches have large oil demand, the second oil outlet 39 of the third electromagnetic valve 31 is closed, all the oil flowing into the third electromagnetic valve 31 can only enter the oil supply branch 34 of the first and second clutches through the first oil outlet 32 of the third electromagnetic valve 31 to supply oil to the first and second clutches, and the third clutch is supplied with oil through the oil supply branch 37 of the third clutch, so that the second throttle 27, the third throttle 38 and the fourth throttle 35 control the flow rate to the first, second and third clutches together.
When the first clutch and the second clutch need to be lubricated and the third clutch needs a large amount of lubricating oil, the first oil outlet 32 and the second oil outlet 39 of the third electromagnetic valve 31 are both opened, except that part of the oil passing through the third electromagnetic valve 31 supplies oil to the first clutch and the second clutch through the oil supply branch 34 of the first clutch and the second clutch, the other part of the oil is converged with the oil in the through oil path 28 of the third clutch from the oil supply path 36 and then supplies oil to the third clutch through the oil supply branch 37 of the third clutch, and the flow rates flowing to the first clutch, the second clutch and the third clutch are controlled by the second throttle valve 27, the third throttle valve 38 and the fourth throttle valve 35 together.
When only the third clutch needs a large amount of oil, the second oil outlet 39 is opened, the first oil outlet 32 of the third electromagnetic valve 31 is closed, so that the oil passing through the third electromagnetic valve 31 can only be converged with the oil in the through oil passage 28 of the third clutch from the second oil outlet 39 through the oil supplementing passage 36, the oil is supplied to the third clutch through the oil supply branch passage 37 of the third clutch, and the flow rate flowing to the third clutch is controlled by the second throttle valve 27 and the third throttle valve 38 together.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A lubrication and cooling hydraulic system of a three-clutch transmission, comprising an electric pump (6), a first solenoid valve (10), characterized in that: an upstream end oil way (3) of the electric pump (6) is communicated with an oil tank (1) through a first filter (2), a downstream end of the electric pump (6) is connected with a main oil way (9), an oil inlet (12) of a first electromagnetic valve (10) is connected with the main oil way (9) through an oil pipe, an oil return port (4) of the first electromagnetic valve (10) is connected with the upstream end oil way (3) of the electric pump (6) through an oil pipe for pressure relief, a control end (8) of the first electromagnetic valve (10) is connected with the main oil way (9), the main oil way (9) is connected with an upstream end of a cooler (15) through a cooling oil way (13), a downstream end of the cooler (15) is connected with a cooling oil delivery oil way (24) through a filter (20) with a bypass valve, a second electromagnetic valve (22) is arranged between the main oil way (9) and the cooling oil delivery oil way (24), and an oil inlet end (18) of the second electromagnetic valve (22) is connected with the main, an oil outlet end (23) of the second electromagnetic valve (22) is connected with a cooling oil conveying oil way (24), a front feedback oil inlet end (17) of the second electromagnetic valve (22) is connected with a main oil way (9), a rear feedback oil inlet end (21) is connected with the cooling oil conveying oil way (24), the cooling oil conveying oil way (24) is connected with a gear box oil supply pipeline (30) and a second filter (26) in parallel, a first throttling valve (33) is arranged on the gear box oil supply pipeline (30), two oil ways are connected with the downstream end of the second filter (26) in parallel, a through oil way (28) of a third clutch is communicated with an oil supply branch (37) of the third clutch, a second throttling valve (27) is arranged on the through oil way (28) of the third clutch, a third throttling valve (38) is arranged on the oil supply branch (37) of the third clutch, and the other oil supply way is a third electromagnetic, the third electromagnetic valve oil supply path (25) is connected with an oil inlet hole (29) of a third electromagnetic valve (31), a first oil outlet hole (32) of the third electromagnetic valve (31) is connected with oil supply branches (34) of the first clutch and the second clutch, a fourth throttle valve (35) is arranged on the oil supply branch (34), and a second oil outlet hole (39) of the third electromagnetic valve (31) is connected between the second throttle valve (27) and the third throttle valve (38) through an oil supplementing path (36).
2. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: the first electromagnetic valve (10) is a two-position two-way electro-hydraulic proportional pressure control valve.
3. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: the second solenoid valve (22) is a force feedback proportional solenoid valve.
4. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: the third electromagnetic valve (31) is a three-position three-way electromagnetic valve.
5. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: and an oil return port (4) of the first electromagnetic valve (10) is connected with an upstream end oil way (3) between the electric pump (6) and the first filter (2) through an oil pipe.
6. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: the upstream end of a bypass valve (16) of the bypass valve-equipped filter (20) is connected between the filter and the cooler (15), and the downstream end of the bypass valve (16) is connected to a cooling oil feed passage (24).
7. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: the electric pump (6) is a gear pump or a vane pump.
8. The lubrication and cooling hydraulic system for a three clutch transmission of claim 1, wherein: and the motor (5) of the electric pump (6) is a permanent magnet synchronous motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920325260.4U CN210371947U (en) | 2019-03-14 | 2019-03-14 | Lubrication and cooling hydraulic system for three-clutch transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325260.4U CN210371947U (en) | 2019-03-14 | 2019-03-14 | Lubrication and cooling hydraulic system for three-clutch transmission |
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| CN210371947U true CN210371947U (en) | 2020-04-21 |
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| CN201920325260.4U Active CN210371947U (en) | 2019-03-14 | 2019-03-14 | Lubrication and cooling hydraulic system for three-clutch transmission |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681622A (en) * | 2019-03-14 | 2019-04-26 | 重庆青山工业有限责任公司 | Hydraulic system for three clutch speed-changer lubrications |
| CN112594372A (en) * | 2020-12-08 | 2021-04-02 | 浙江吉利控股集团有限公司 | Hydraulic system of automobile hybrid power transmission |
| CN113357352A (en) * | 2021-06-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Cooling control valve, control method, dual-clutch transmission cooling system and vehicle |
| US20220268354A1 (en) * | 2021-02-11 | 2022-08-25 | Zf Friedrichshafen Ag | Vehicle transmission with a lubrication system and a connection for attaching a power take-off module to the vehicle transmission |
| CN115045879A (en) * | 2022-06-06 | 2022-09-13 | 中国第一汽车股份有限公司 | Flow distribution control method and device for hydraulic oil pump, storage medium and processor |
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2019
- 2019-03-14 CN CN201920325260.4U patent/CN210371947U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681622A (en) * | 2019-03-14 | 2019-04-26 | 重庆青山工业有限责任公司 | Hydraulic system for three clutch speed-changer lubrications |
| CN112594372A (en) * | 2020-12-08 | 2021-04-02 | 浙江吉利控股集团有限公司 | Hydraulic system of automobile hybrid power transmission |
| CN112594372B (en) * | 2020-12-08 | 2022-01-28 | 浙江吉利控股集团有限公司 | Hydraulic system of automobile hybrid power transmission |
| US20220268354A1 (en) * | 2021-02-11 | 2022-08-25 | Zf Friedrichshafen Ag | Vehicle transmission with a lubrication system and a connection for attaching a power take-off module to the vehicle transmission |
| CN113357352A (en) * | 2021-06-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Cooling control valve, control method, dual-clutch transmission cooling system and vehicle |
| WO2022262430A1 (en) * | 2021-06-18 | 2022-12-22 | 中国第一汽车股份有限公司 | Cooling control valve, control method, dual-clutch transmission cooling system, and vehicle |
| CN113357352B (en) * | 2021-06-18 | 2023-02-21 | 中国第一汽车股份有限公司 | Cooling control valve, control method, dual-clutch transmission cooling system and vehicle |
| CN115045879A (en) * | 2022-06-06 | 2022-09-13 | 中国第一汽车股份有限公司 | Flow distribution control method and device for hydraulic oil pump, storage medium and processor |
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