CN213419859U - Double-pump double-clutch hydraulic system - Google Patents
Double-pump double-clutch hydraulic system Download PDFInfo
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- CN213419859U CN213419859U CN202020925616.0U CN202020925616U CN213419859U CN 213419859 U CN213419859 U CN 213419859U CN 202020925616 U CN202020925616 U CN 202020925616U CN 213419859 U CN213419859 U CN 213419859U
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Abstract
The utility model discloses a double-pump double-clutch hydraulic system, which comprises an oil tank for providing hydraulic oil and an oil suction path for outputting the hydraulic oil, wherein the oil suction path is respectively communicated with an oil inlet of a mechanical pump and an oil inlet of an electric pump; an oil outlet of the mechanical pump cools and lubricates mechanical elements through a cooling oil way I; an oil outlet of the electric pump is respectively communicated with the cooling oil way II and the high-pressure oil way, and hydraulic oil of the high-pressure oil way is respectively communicated with the clutch II, the clutch I and the parking actuating mechanism; and the cooling oil way II is communicated with the cooling oil way I, and a main oil way regulating valve is arranged on the cooling oil way II. The beneficial effects of the utility model are mainly embodied in that: the mechanical pump and the electric pump simultaneously provide working hydraulic oil for the cooling of the double motors and the operation of the clutch, so that parts are saved, the structure is compact, and the working efficiency of the system is improved; when the automobile is just started or runs at a low speed, the electric pump is started to work to make up the condition that the oil amount of the mechanical pump is insufficient under the working condition, so that the working performance of the transmission under the working condition is improved.
Description
Technical Field
The utility model relates to the field of automotive technology, particularly, especially, relate to a double pump double clutch hydraulic system.
Background
With the environmental pollution and increasingly strict fuel consumption and emission regulations at home and abroad, various automobile companies are forced to develop power systems with ultrahigh fuel economy, and a hybrid power system which gives consideration to both fuel economy and technical maturity becomes an ideal choice at the present stage. Hybrid vehicles employ hybrid drive technology, the power sources of which include a hybrid electric machine and an engine. The hybrid driving technology is that a driving motor is added in a traditional engine gearbox power system to complete hybrid output of power of an engine and the motor.
Similar hybrid transmissions on the market typically operate with shifting and cooling performed separately, typically with oil cooling for motor cooling and electronic or clutch operators for clutch and synchronizer shifting, thus separating the shifting and clutch control from motor cooling, increasing system cost and also increasing system space.
Therefore, new technical solutions are urgently needed to solve the defects of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a double pump double clutch hydraulic system.
The purpose of the utility model is realized through the following technical scheme:
a double-pump double-clutch hydraulic system comprises an oil tank for providing hydraulic oil and an oil suction path for outputting the hydraulic oil, wherein the oil suction path is respectively communicated with an oil inlet of a mechanical pump and an oil inlet of an electric pump; an oil outlet of the mechanical pump cools and lubricates mechanical elements through a cooling oil way I; an oil outlet of the electric pump is respectively communicated with a cooling oil way II and a high-pressure oil way, and hydraulic oil of the high-pressure oil way is respectively communicated with a clutch II, a clutch I and a parking actuating mechanism; and the cooling oil way II is communicated with the cooling oil way I, and a main oil way regulating valve for regulating the pressure of the high-pressure oil way is arranged on the cooling oil way II.
Preferably, the mechanical elements comprise an auxiliary motor stator, a main driving motor stator, an auxiliary motor rotor, a main driving motor rotor, a short idler shaft, and components of a clutch I and a clutch II; the hydraulic oil in the cooling oil path I is respectively communicated with a cooling oil distributing path I, a cooling oil distributing path II and a cooling oil distributing path III, and the cooling oil distributing path I is communicated with an auxiliary motor stator and a main driving motor stator; the cooling oil distribution way II is communicated with the auxiliary motor rotor, the main driving motor rotor and the short idler shaft; and the cooling oil distribution channel III is respectively communicated with the component of the clutch I through an input shaft and the component of the clutch II through an output shaft.
Preferably, a cooler is arranged on the cooling oil distribution channel I, and a bypass valve is connected in parallel with the inlet end and the outlet end of the cooler.
Preferably, a check valve I is arranged on the cooling oil way I, and the check valve I is located between the joint of the cooling oil way II and the cooling oil way I and the mechanical pump.
Preferably, a pressure relief valve is further arranged between the oil inlet of the check valve I and the oil outlet of the mechanical pump.
Preferably, a check valve II is arranged between an oil inlet and an oil outlet of the mechanical pump.
Preferably, an electric proportional solenoid valve connected in parallel with the main oil path regulating valve is arranged on the main oil path regulating valve.
Preferably, the hydraulic oil in the high-pressure oil path is respectively communicated with a high-pressure oil dividing path I, a high-pressure oil dividing path II and a high-pressure oil dividing path III, the high-pressure oil dividing path I is communicated with the clutch II through a switch type electromagnetic valve I, and the high-pressure oil dividing path II is communicated with the clutch I through a switch type electromagnetic valve II; the high-pressure oil distribution channel III is communicated with a parking actuating mechanism through a parking control valve, and the parking control valve is further provided with a switch type electromagnetic valve III which is connected with the parking control valve in parallel and used for conducting pilot control on the parking control valve.
Preferably, a pressure sensor I and an energy accumulator I are arranged on the high-pressure oil distributing way I, and the pressure sensor I and the energy accumulator I are located between the closed electromagnetic valve I and the clutch II.
Preferably, the high-pressure oil distributing channel II is provided with a pressure sensor II and an energy accumulator II, and the pressure sensor II and the energy accumulator II are located between the switch type electromagnetic valve II and the clutch I.
The beneficial effects of the utility model are mainly embodied in that:
1. the design is ingenious, the mechanical pump and the electric pump can simultaneously provide working hydraulic oil for the cooling of the double motors and the operation of the clutch, the parts are saved, the structure is compact, and the working efficiency of the system is improved; when the automobile is just started or runs at a low speed, the electric pump is started to work to make up the condition that the oil amount of the mechanical pump is insufficient under the working condition, so that the working performance of the transmission under the working condition is improved; when the vehicle runs at a high speed and the flow rate of the mechanical pump is sufficient, the rotating speed of the electric pump can be reduced, and energy is saved. The electric pump and the mechanical pump are mutually matched, so that the efficiency is improved;
2. the main oil way regulating valve can realize the switching of the electric pump for conveying hydraulic oil on a cooling loop and a high-pressure loop, complete the intelligent switching of the electric pump for providing motor cooling oil or oil for other systems such as gear shifting and the like, reduce the power load of the electric pump and prolong the service life;
3. the check valve can avoid the problem that the hydraulic oil flows back to the oil tank again, thereby ensuring the cleanness of the hydraulic oil in the oil tank and prolonging the service life of the hydraulic oil;
4. the cooling oil way I is a public oil way, so that the on-way loss of hydraulic oil can be reduced, the utilization rate is improved, and the enterprise cost is reduced;
5. the energy accumulator can store or release hydraulic oil, so that the pressure of the whole system is normal;
6. the system has wide applicability.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the structure of the preferred embodiment of the present invention is schematically illustrated.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model discloses a have a double-pump double clutch hydraulic system, including the oil tank 1 that provides hydraulic oil and with the oil absorption way 11 of hydraulic oil output, be equipped with on the major loop and inhale the filter, the setting of inhaling the filter can guarantee the cleanliness factor of the hydraulic oil of follow output in the oil tank.
The oil suction way 11 is respectively communicated with an oil inlet of the mechanical pump 2 and an oil inlet of the electric pump 3, an oil outlet of the mechanical pump 2 is communicated with a mechanical element through a cooling oil way I4 for cooling and lubricating the mechanical element, and after cooling and lubricating are completed, hydraulic oil flows back to the oil tank 1. Mechanical component includes auxiliary motor stator 411, main driving motor stator 412, auxiliary motor rotor 421, main driving motor rotor 422, short idler shaft 423 and clutch I5 and clutch II 6's components and parts, of course, mechanical component also can be other, all belongs to the utility model discloses a protection category. In this embodiment, the hydraulic oil in the cooling oil path i 4 is respectively led to a cooling oil distribution path i 41, a cooling oil distribution path ii 42, and a cooling oil distribution path iii 43, and the cooling oil distribution path i 41 is communicated with the auxiliary motor stator 411 and the main drive motor stator 412 to complete cooling of the auxiliary motor stator 411 and the main drive motor stator 412. The cooling oil distribution path II 42 is communicated with the auxiliary motor rotor 421, the main driving motor rotor 422 and the short idler shaft 423 to complete cooling of the auxiliary motor rotor 421, the main driving motor rotor 422 and the short idler shaft 423. And the cooling oil distribution channel III 43 is respectively communicated with components of the clutch I5 through an input shaft 44 with a hollow cavity and components of the clutch II 6 through an output shaft 45 with a hollow cavity so as to finish cooling the components of the clutch I5 and the clutch II 6, wherein the components of the clutch I5 and the clutch II 6 comprise gears, bearings, friction plates and the like.
In the above, the cooling oil distribution path i 41 is provided with a cooler 413 for cooling the hydraulic oil, and an inlet end and an outlet end of the cooler 413 are connected in parallel with a bypass valve 414. Furthermore, a check valve I46 is arranged on the cooling oil way I4, the check valve I46 is positioned between the joint of the cooling oil way II 7 and the cooling oil way I4 and the mechanical pump 2, a pressure release valve 47 is further arranged between the oil inlet of the check valve I46 and the oil outlet of the mechanical pump 2, and a check valve II 21 is arranged between the oil inlet and the oil outlet of the mechanical pump 2. The problem that hydraulic oil flows backwards to the oil tank can be avoided once more in the setting of check valve, guarantees the cleanliness factor of hydraulic oil in the oil tank, prolongs its life.
In this embodiment, an oil outlet of the electric pump 3 is respectively communicated with a cooling oil path ii 7 and a high-pressure oil path 8, the cooling oil path ii 7 is communicated with the cooling oil path i 4, and a main oil path adjusting valve 71 for adjusting the pressure of the high-pressure oil path 8 is disposed thereon. The main oil path regulating valve 71 is provided with an electric proportional solenoid valve 72 connected in parallel with the main oil path regulating valve 71, and a valve core of the main pipe valve 72 can move to the right under the action of spring force, so that the main pipe valve 72 works at a left position, and pilot pressure is applied to the main oil path regulating valve 71 to achieve the pressure regulating effect. The hydraulic oil of the high-pressure oil path 8 is respectively communicated with a high-pressure oil distributing path I81, a high-pressure oil distributing path II 82 and a high-pressure oil distributing path III 83, the high-pressure oil distributing path I81 is communicated with the clutch II 6 through a switch type electromagnetic valve I811, and the high-pressure oil distributing path II 82 is communicated with the clutch I5 through a switch type electromagnetic valve II 821; the high-pressure oil distribution channel iii 83 is communicated with a parking actuating mechanism 832 through a parking control valve 831, and the parking control valve 831 is further provided with a switch type electromagnetic valve iii 833 which is connected in parallel with the parking control valve 831 and used for conducting pilot control on the parking control valve. And a pressure sensor I813 and an energy accumulator I812 are arranged on the high-pressure oil distributing channel I81, and the pressure sensor I813 and the energy accumulator I812 are positioned between the closed electromagnetic valve I811 and the clutch II 6. And a pressure sensor II 823 and an energy accumulator II 822 are arranged on the high-pressure oil distributing passage II 82, and the pressure sensor II 823 and the energy accumulator II 822 are positioned between the switch type electromagnetic valve II 821 and the clutch I5. The accumulator can store or release hydraulic oil, so that the pressure of the whole system is normal.
The mechanical pump and the electric pump simultaneously provide working hydraulic oil for double-motor cooling and clutch operation, so that parts are saved, the structure is compact, and the working efficiency of the system is improved; when the automobile is just started or runs at a low speed, the electric pump is started to work to make up the condition that the oil amount of the mechanical pump is insufficient under the working condition, so that the working performance of the transmission under the working condition is improved. When the vehicle runs at a high speed and the flow rate of the mechanical pump is sufficient, the rotating speed of the electric pump can be reduced, and energy is saved. The electric pump and the mechanical pump are mutually matched, so that the efficiency is improved; the main oil way regulating valve can realize the switching of the electric pump for conveying hydraulic oil on a cooling loop and a high-pressure loop, the intelligent switching of the electric pump for providing motor cooling oil or oil for other systems such as gear shifting and the like is completed, the power load of the electric pump is reduced, and the service life is prolonged. And simultaneously, the utility model discloses the hydraulic pressure oil circuit of special derailleur of specific double clutch double pump, hybrid that is used for.
The working process of the utility model is simply explained as follows:
when the automobile is just started or runs at a low speed, the mechanical pump 2 is started, hydraulic oil in the oil tank 1 is conveyed to mechanical elements through the mechanical pump 2 and the check valve I46 in sequence, and the mechanical elements are cooled. Meanwhile, the electric pump 3 is started, the valve core of the main oil path adjusting valve 71 overcomes the spring force to move to the right, so that the main oil path adjusting valve 71 works at the left position, the oil suction path 11 is communicated with the cooling oil path II 7 to cool the mechanical element, the condition that the oil amount of the mechanical pump is insufficient is avoided, and the working performance of the transmission under the working condition is improved.
When the automobile needs to close the clutch I5, the electric pump 3 is started, and the valve core of the main oil way regulating valve 71 moves to the left under the action of spring force, so that the main oil way regulating valve 71 is in a right state, and the oil suction way 11 is disconnected with the cooling oil way II 7. The electric pump 3 conveys hydraulic oil to the switch type electromagnetic valve II 821, a valve core of the switch type electromagnetic valve II 821 overcomes spring force to move to the right, the switch type electromagnetic valve II 821 works at the left position, the hydraulic oil is conveyed to the clutch I5, and the clutch I5 is closed.
When the clutch i 5 needs to be in an open state, the on-off solenoid valve 821 is powered off, and the hydraulic oil automatically flows back to the oil tank 1.
The closing process of the clutch II 6 is the same as that of the clutch I5, and therefore, the process is not described in detail herein.
When an automobile needs to be parked, the electric pump 3 is started to deliver hydraulic oil to the parking control valve 831 and the switch type electromagnetic valve III 833, at the moment, the valve core of the switch type electromagnetic valve III 833 moves to the right against spring force, the switch type electromagnetic valve II 821 works at the left position, the hydraulic oil applies pilot pressure to the valve core of the parking control valve 831 through the switch type electromagnetic valve III 833, meanwhile, the valve core of the parking control valve 831 moves to the left under the action of the spring force, the main oil path adjusting valve 71 is enabled to be in the right position state, the high-pressure oil dividing path III 83 is enabled to be communicated with the parking execution mechanism 832, and parking is completed.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. Double pump double clutch hydraulic system, its characterized in that: the hydraulic oil pump comprises an oil tank (1) for providing hydraulic oil and an oil suction path (11) for outputting the hydraulic oil, wherein the oil suction path (11) is respectively communicated with an oil inlet of a mechanical pump (2) and an oil inlet of an electric pump (3); an oil outlet of the mechanical pump (2) cools and lubricates mechanical elements through a cooling oil way I (4); an oil outlet of the electric pump (3) is respectively communicated with a cooling oil way II (7) and a high-pressure oil way (8), and hydraulic oil of the high-pressure oil way (8) is respectively communicated with a clutch II (6), a clutch I (5) and a parking executing mechanism (832); and the cooling oil way II (7) is communicated with the cooling oil way I (4), and a main oil way regulating valve (71) for regulating the pressure of the high-pressure oil way (8) is arranged on the cooling oil way II.
2. The dual pump dual clutch hydraulic system of claim 1, wherein: the mechanical elements comprise an auxiliary motor stator (411), a main driving motor stator (412), an auxiliary motor rotor (421), a main driving motor rotor (422), a short idler shaft (423), and components of a clutch I (5) and a clutch II (6); hydraulic oil in the cooling oil path I (4) is respectively communicated with a cooling oil distribution path I (41), a cooling oil distribution path II (42) and a cooling oil distribution path III (43), and the cooling oil distribution path I (41) is communicated with an auxiliary motor stator (411) and a main driving motor stator (412); the cooling oil distribution way II (42) is communicated with an auxiliary motor rotor (421), a main driving motor rotor (422) and a short idler shaft (423); and the cooling oil distribution channel III (43) is respectively communicated with a component of the clutch I (5) through an input shaft (44) and a component of the clutch II (6) through an output shaft (45).
3. The dual pump dual clutch hydraulic system of claim 2, wherein: and a cooler (413) is arranged on the cooling oil distribution way I (41), and a bypass valve (414) is connected in parallel with the inlet end and the outlet end of the cooler (413).
4. The dual pump dual clutch hydraulic system of claim 1, wherein: be equipped with a check valve I (46) on cooling oil circuit I (4), check valve I (46) are located cooling oil circuit II (7) and the junction of cooling oil circuit I (4) with between mechanical pump (2).
5. The dual pump dual clutch hydraulic system of claim 4, wherein: and a pressure relief valve (47) is also arranged between the oil inlet of the check valve I (46) and the oil outlet of the mechanical pump (2).
6. The dual pump dual clutch hydraulic system of claim 1, wherein: and a check valve II (21) is arranged between an oil inlet and an oil outlet of the mechanical pump (2).
7. The dual pump dual clutch hydraulic system of claim 1, wherein: an electric proportional solenoid valve (72) connected in parallel with the main oil path adjusting valve (71) is arranged on the main oil path adjusting valve.
8. The dual pump dual clutch hydraulic system of claim 1, wherein: the hydraulic oil in the high-pressure oil way (8) is respectively communicated with a high-pressure oil distributing way I (81), a high-pressure oil distributing way II (82) and a high-pressure oil distributing way III (83), the high-pressure oil distributing way I (81) is communicated with the clutch II (6) through a switch type electromagnetic valve I (811), and the high-pressure oil distributing way II (82) is communicated with the clutch I (5) through a switch type electromagnetic valve II (821); the high-pressure oil distribution channel III (83) is communicated with a parking executing mechanism (832) through a parking control valve (831), and the parking control valve (831) is further provided with a switch type electromagnetic valve III (833) which is connected with the parking control valve in parallel and used for conducting pilot control on the parking control valve.
9. The dual pump dual clutch hydraulic system of claim 8, wherein: and a pressure sensor I (813) and an energy accumulator I (812) are arranged on the high-pressure oil distributing channel I (81), and the pressure sensor I (813) and the energy accumulator I (812) are positioned between the closed electromagnetic valve I (811) and the clutch II (6).
10. The dual pump dual clutch hydraulic system of claim 8, wherein: and a pressure sensor II (823) and an energy accumulator II (822) are arranged on the high-pressure oil distributing passage II (82), and the pressure sensor II (823) and the energy accumulator II (822) are positioned between the switch type electromagnetic valve II (821) and the clutch I (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925616.0U CN213419859U (en) | 2020-05-27 | 2020-05-27 | Double-pump double-clutch hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925616.0U CN213419859U (en) | 2020-05-27 | 2020-05-27 | Double-pump double-clutch hydraulic system |
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| CN213419859U true CN213419859U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020925616.0U Active CN213419859U (en) | 2020-05-27 | 2020-05-27 | Double-pump double-clutch hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450967A (en) * | 2022-09-09 | 2022-12-09 | 奇瑞汽车股份有限公司 | Hydraulic system for hybrid transmission and automobile |
-
2020
- 2020-05-27 CN CN202020925616.0U patent/CN213419859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450967A (en) * | 2022-09-09 | 2022-12-09 | 奇瑞汽车股份有限公司 | Hydraulic system for hybrid transmission and automobile |
| CN115450967B (en) * | 2022-09-09 | 2024-03-26 | 奇瑞汽车股份有限公司 | Hydraulic system for hybrid gearbox and automobile |
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