CN112780757B - Hybrid electric vehicle transmission oil circuit system and vehicle - Google Patents
Hybrid electric vehicle transmission oil circuit system and vehicle Download PDFInfo
- Publication number
- CN112780757B CN112780757B CN202110120831.2A CN202110120831A CN112780757B CN 112780757 B CN112780757 B CN 112780757B CN 202110120831 A CN202110120831 A CN 202110120831A CN 112780757 B CN112780757 B CN 112780757B
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- oil
- oil pipe
- pipe
- clutch
- cooling
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 110
- 239000007921 spray Substances 0.000 claims description 32
- 238000005461 lubrication Methods 0.000 claims description 19
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 297
- 239000010687 lubricating oil Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- 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
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
-
- 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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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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
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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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
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
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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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Details Of Gearings (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention provides a transmission oil way system of a hybrid electric vehicle and a vehicle, wherein the system comprises a clutch execution oil way assembly, and the clutch execution oil way assembly comprises a clutch execution motor, a clutch execution pump, a first suction filter, a clutch supporting seat, a first oil pipe, a second oil pipe, a third oil pipe and a fourth oil pipe; the clutch executing motor drives the clutch executing pump to work, pressure oil passes through the first oil pipe, the second oil pipe and the third oil pipe after being subjected to rough filtration of the first suction filter, then enters the clutch executing pump, then flows out through the fourth oil pipe under the action of the clutch executing pump, is conveyed into the clutch supporting seat, and finally enters the clutch executing pressure cavity. The invention can solve the problem of complex pressure oil path structure in the prior art.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a hybrid electric vehicle transmission oil circuit system and an automobile.
Background
Along with two major problems of energy shortage and environmental deterioration, a hybrid power system (abbreviated as a hybrid power system) becomes a main trend of an automobile power system. The basic principle of the hybrid system is that the residual energy of the engine under the low-load working condition is stored in a battery, and the motor is released when the vehicle runs, so that the engine runs under the high-efficiency working condition as much as possible, and the purposes of energy conservation, emission reduction and oil consumption reduction are achieved.
The performance of a transmission, which is a core component of an automobile, often determines the quality of the finished automobile. For an automobile with a hybrid system, parts such as a clutch, a multi-gear, a shifting fork, a shaft, a bearing, a clutch, a motor and the like are required to be arranged in a limited space, and pressure oil is required to be used for the operation of a clutch actuating mechanism, however, the pressure oil way and lubricating oil in the transmission in the traditional transmission are required to be respectively independent in oil way structure, so that the whole structure is complex, the occupied space is large, and the hybrid transmission cannot be well applied to the hybrid system.
Disclosure of Invention
Therefore, an object of the present invention is to provide a transmission oil path system for a hybrid electric vehicle, so as to solve the problems of complex structure and large occupied space of the pressure oil path in the prior art.
The clutch execution oil circuit assembly comprises a clutch execution motor, a clutch execution pump, a first suction filter, a clutch supporting seat, a first oil pipe, a second oil pipe, a third oil pipe and a fourth oil pipe;
The clutch executing pump is arranged below the clutch executing motor, one end of the first oil pipe is inserted into the first suction filter, the other end of the first oil pipe is connected with one end of the second oil pipe, the other end of the second oil pipe is connected with one end of the third oil pipe, the other end of the third oil pipe is inserted into the clutch executing pump, one end of the fourth oil pipe is inserted into the clutch executing pump, and the other end of the fourth oil pipe is inserted into the clutch supporting seat;
The clutch executing motor drives the clutch executing pump to work, pressure oil passes through the first oil pipe, the second oil pipe and the third oil pipe after being subjected to rough filtration of the first suction filter, then enters the clutch executing pump, then flows out through the fourth oil pipe under the action of the clutch executing pump, is conveyed into the clutch supporting seat, and finally enters the clutch executing pressure cavity.
According to the transmission oil path system of the hybrid electric vehicle, the clutch executing pressure oil path drives the clutch executing pump to work through the clutch executing motor, pressure oil flows out of the fourth oil pipe after being roughly filtered by the first suction filter and is conveyed into the clutch supporting seat, finally enters the clutch executing pressure cavity, the pressure oil and lubricating oil in the transmission can be recycled in the clutch cavity, the oil path structure is simplified, the space is saved, and therefore the transmission oil path system can be better applied to a hybrid system, and the cost is reduced.
In addition, the above-mentioned hybrid electric vehicle transmission oil circuit system according to the present invention may further have the following additional technical features:
Further, the hybrid electric vehicle transmission oil circuit system further comprises a clutch cooling oil circuit assembly, wherein the clutch cooling oil circuit assembly comprises an electronic cooling integrated pump, a second suction filter, a connecting pipe, a fifth oil pipe, a sixth oil pipe and a clutch supporting seat;
one end of the connecting pipe is inserted into the electronic cooling integrated pump, the other end of the connecting pipe is connected with one end of the fifth oil pipe, the other end of the fifth oil pipe is connected with one end of the sixth oil pipe, and the other end of the sixth oil pipe is inserted into the clutch supporting seat;
Under the action of the electronic cooling integrated pump, cooling oil is sucked into the electronic cooling integrated pump after being subjected to rough filtration of the second suction filter, then flows through the connecting pipe and the fifth oil pipe in sequence, and after passing through the fifth oil pipe, part of cooling oil flows into the clutch support seat through the sixth oil pipe and finally enters the clutch cooling cavity.
Further, the clutch cooling oil path assembly further comprises a flow limiting valve, and the flow limiting valve is arranged on the sixth oil pipe.
Further, the hybrid electric vehicle transmission oil circuit system further comprises a motor cooling oil circuit assembly, wherein the motor cooling oil circuit assembly comprises a seventh oil pipe, an eighth oil pipe, a ninth oil pipe, a tenth oil pipe, an eleventh oil pipe, a twelfth oil pipe, a fine filter, a first cooling oil pipe, a second cooling oil pipe, a heat exchanger, a first motor cooling spray pipe assembly and a second motor cooling spray pipe assembly;
The other end of the fifth oil pipe is further connected with the seventh oil pipe, the eighth oil pipe, the fine filter, the ninth oil pipe, the first cooling oil pipe, the heat exchanger, the second cooling oil pipe and the tenth oil pipe are sequentially connected, the tenth oil pipe is respectively connected with the first motor cooling spray pipe assembly and the eleventh oil pipe, the twelfth oil pipe and the second motor cooling spray pipe assembly are sequentially connected, and the eleventh oil pipe is positioned on the outer side of the transmission shell;
After passing through the fifth oil pipe, the cooling oil enters the fine filter for fine filtration after passing through the seventh oil pipe and the eighth oil pipe, then enters the heat exchanger for heat exchange cooling after passing through the ninth oil pipe and the first cooling oil pipe, then enters the tenth oil pipe through the second cooling oil pipe, after passing through the tenth oil pipe, part of the cooling oil enters the first motor cooling spray pipe assembly, and the other part of the cooling oil enters the second motor cooling spray pipe assembly after passing through the eleventh oil pipe and the twelfth oil pipe.
Further, the first motor cooling spray pipe assembly is provided with a plurality of first pipelines with different diameters, and the first pipelines are provided with a plurality of first oil spray holes with different angles and different diameters.
Further, a plurality of second pipelines with different diameters are arranged on the second motor cooling spray pipe assembly, and a plurality of second oil spray holes with different angles and different diameters are arranged on the second pipelines.
Further, the transmission oil path system of the hybrid electric vehicle further comprises a lubricating oil path assembly, the lubricating oil path assembly comprises an oil guide pipe and a thirteenth oil pipe, the oil guide pipe is respectively connected with the first motor cooling spray pipe assembly and the thirteenth oil pipe, a first motor idler shaft bearing hole, a first motor input shaft bearing hole and a first motor output shaft bearing hole are formed in the thirteenth oil pipe, a first oil hole is formed in the first motor idler shaft bearing hole, a second oil hole is formed in the first motor input shaft bearing hole, a third oil hole is formed in the first motor output shaft bearing hole, and the first oil hole, the second oil hole and the third oil hole are respectively communicated with the thirteenth oil pipe.
Further, the lubrication oil way assembly further comprises a fourteenth oil pipe, the fourteenth oil pipe is connected with the second motor cooling spray pipe assembly, a second motor bearing hole is formed in the fourteenth oil pipe, a fourth oil hole, a first oil groove and a second oil groove are formed in the second motor bearing hole, the fourth oil hole is communicated with the fourteenth oil pipe, the fourth oil hole is located between the first oil groove and the second oil groove, oil in the first oil groove is used for lubricating a second motor bearing, and oil in the second oil groove is used for lubricating a roller of the second motor bearing.
Another object of the present invention is to provide an automobile comprising the above hybrid automobile transmission oil circuit system.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a clutch actuator assembly;
FIG. 2 is a schematic structural view of a clutch cooling circuit assembly;
FIG. 3 is a schematic structural view of the motor cooling gallery assembly;
FIG. 4 is a schematic structural view of a lubrication circuit assembly;
FIG. 5 is a schematic structural view of a first motor idler shaft bearing bore, a first motor input shaft bearing bore, a first motor output shaft bearing bore;
fig. 6 is a schematic structural view of a second motor bearing hole.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and the like are used herein for descriptive purposes only and not to indicate or imply that the apparatus 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 invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, a transmission oil circuit system for a hybrid vehicle according to an embodiment of the present invention includes a clutch executing oil circuit assembly, a clutch cooling oil circuit assembly, a motor cooling oil circuit assembly, and a lubrication oil circuit assembly.
The clutch executing oil circuit assembly comprises a first suction filter 1, a first oil pipe 2, a second oil pipe 3, a third oil pipe 4, a clutch executing motor 5, a clutch executing pump 6, a fourth oil pipe 7 and a clutch supporting seat 8.
The clutch actuator pump 6 is installed below the clutch actuator motor 5, one end of the first oil pipe 2 is inserted into the first suction filter 1, the other end of the first oil pipe 2 is connected with one end of the second oil pipe 3, the other end of the second oil pipe 3 is connected with one end of the third oil pipe 4, the other end of the third oil pipe 4 is inserted into the clutch actuator pump 6, one end of the fourth oil pipe 7 is inserted into the clutch actuator pump 6, and the other end of the fourth oil pipe 7 is inserted into the clutch support seat 8.
The clutch executing motor 5 drives the clutch executing pump 6 to work, pressure oil passes through the first oil pipe 2, the second oil pipe 3 and the third oil pipe 4 after being subjected to rough filtration of the first suction filter 1, then enters the clutch executing pump 6, then flows out through the fourth oil pipe 7 under the action of the clutch executing pump 6, is conveyed into the clutch supporting seat 8, and finally enters the clutch executing pressure cavity to realize executing control work of the clutch.
According to the clutch executing oil way assembly, the clutch executing pump 6 is driven to work by the clutch executing motor 5, and the pressure oil flows out from the fourth oil pipe 7 after being roughly filtered by the first suction filter 1 and is conveyed into the clutch supporting seat 8, finally enters the clutch executing pressure cavity, and the pressure oil can be recycled with lubricating oil in the transmission in the clutch cavity, so that the oil way structure is simplified, the space is saved, the clutch executing oil way assembly can be better applied to a mixing system, and the cost is reduced.
The clutch cooling oil way assembly comprises an electronic cooling integrated pump 9, a second suction filter 10, a connecting pipe 11, a fifth oil pipe 12, a sixth oil pipe 13 and the clutch supporting seat 8.
One end of the connecting pipe 11 is inserted into the electronic cooling integrated pump 9, the other end of the connecting pipe 11 is connected with one end of the fifth oil pipe 12, the other end of the fifth oil pipe 12 is connected with one end of the sixth oil pipe 13, and the other end of the sixth oil pipe 13 is inserted into the clutch support seat 8.
Under the action of the electronic cooling integrated pump 9, cooling oil is sucked into the electronic cooling integrated pump 9 after being subjected to rough filtration of the second suction filter 10, then flows through the connecting pipe 11 and the fifth oil pipe 12 in sequence, and after passing through the fifth oil pipe 12, part of cooling oil flows into the clutch support seat 8 through the sixth oil pipe 13 and finally enters a clutch cooling cavity to realize clutch cooling.
Preferably, the clutch cooling oil path assembly further includes a restrictor valve 14, and the restrictor valve 14 is disposed on the sixth oil pipe 13. The amount of cooling oil entering the clutch is here controlled by means of a restrictor valve 14.
The motor cooling oil path assembly comprises a seventh oil pipe 15, an eighth oil pipe 16, a fine filter 17, a ninth oil pipe 18, a first cooling oil pipe 19, a heat exchanger 20, a second cooling oil pipe 21, a tenth oil pipe 22, a first motor cooling spray pipe assembly 23, an eleventh oil pipe 24, a twelfth oil pipe 25 and a second motor cooling spray pipe assembly 26, wherein the eleventh oil pipe 24 is positioned on the outer side of the transmission shell.
The other end of the fifth oil pipe 12 is further connected to the seventh oil pipe 15, the eighth oil pipe 16, the fine filter 17, the ninth oil pipe 18, the first cooling oil pipe 19, the heat exchanger 20, the second cooling oil pipe 21, and the tenth oil pipe 22 are sequentially connected, the tenth oil pipe 22 is respectively connected to the first motor cooling spray pipe assembly 23 and the eleventh oil pipe 24, the twelfth oil pipe 25, and the second motor cooling spray pipe assembly 26 are sequentially connected;
After passing through the fifth oil pipe 12, the cooling oil enters the fine filter 17 for fine filtration after passing through the seventh oil pipe 15 and the eighth oil pipe 16, then enters the heat exchanger 20 for heat exchange cooling after passing through the ninth oil pipe 18 and the first cooling oil pipe 19, then enters the tenth oil pipe 22 after passing through the tenth oil pipe 22, a part of the cooling oil enters the first motor cooling spray pipe assembly 23, and another part of the cooling oil enters the second motor cooling spray pipe assembly 26 after passing through the eleventh oil pipe 24 and the twelfth oil pipe 25.
Specifically, the first motor cooling spray pipe assembly 23 is provided with a plurality of first pipelines with different diameters, and the first pipelines are provided with a plurality of first oil spray holes with different angles and different diameters. The oil is sprayed out through the first oil spraying holes to form different covering surfaces to be dripped on the first motor stator and the coil, so that the first motor stator and the coil are actively and directionally cooled; the first motor and the coil are ensured to work in a reasonable temperature range. In addition, these sprayed-out actively lubricated oils can then enter the splash lubrication system of the housing.
The second motor cooling spray pipe assembly 26 is provided with a plurality of second pipelines with different diameters, and the second pipelines are provided with a plurality of second oil spray holes with different angles and different diameters. The oil is sprayed out through the second oil spraying holes to form different covering surfaces to be dripped on the second motor stator and the second motor coil, so that the second motor stator and the second motor coil can be actively and directionally cooled; the second motor and the coil are ensured to work in a reasonable temperature range. In addition, these sprayed-out actively lubricated oils can then enter the splash lubrication system of the housing.
The lubricating oil circuit assembly comprises an oil guide pipe 27 and a thirteenth oil pipe 28, the oil guide pipe 27 is respectively connected with the first motor cooling spray pipe assembly 23 and the thirteenth oil pipe 28, the thirteenth oil pipe 28 is provided with a first motor idler shaft bearing hole 29, a first motor input shaft bearing hole 30 and a first motor output shaft bearing hole 31, and the first motor idler shaft bearing, the first motor input shaft bearing and the first motor output shaft bearing are respectively positioned in the first motor idler shaft bearing hole 29, the first motor input shaft bearing hole 30 and the first motor output shaft bearing hole 31.
The first motor idle shaft bearing hole 29 is provided with a first oil hole 29-1, the first motor input shaft bearing hole 30 is provided with a second oil hole 30-1, the first motor output shaft bearing hole 31 is provided with a third oil hole 31-1, the first oil hole 29-1, the second oil hole 30-1 and the third oil hole 31-1 are respectively communicated with the thirteenth oil pipe 28, and oil can flow through the first oil hole 29-1, the second oil hole 30-1 and the third oil hole 31-1 through the thirteenth oil pipe 28 and then enter the first motor idle shaft bearing hole 29, the first motor input shaft bearing hole 30 and the first motor output shaft bearing hole 31 respectively to lubricate the first motor idle shaft bearing, the first motor input shaft bearing and the first motor output shaft bearing.
Specifically, the first lubrication oil path is that oil enters the first motor idler shaft bearing hole 29 through the first oil hole 29-1 so as to lubricate the first motor idler shaft bearing; the diameter of the first oil hole 29-1 affects the amount of oil ejected at this position to achieve distribution of the oil.
The second lubrication oil path is that oil enters the first motor input shaft bearing hole 30 through the second oil hole 30-1 so as to lubricate the first motor input shaft bearing; the diameter of the second oil hole 30-1 affects the amount of oil discharged at this position to achieve oil distribution.
The third lubrication oil way is that oil enters the bearing hole 31 of the first motor output shaft through the third oil hole 31-1 so as to lubricate the bearing of the first motor output shaft; the diameter of the third oil hole 31-1 affects the amount of oil discharged at this position to achieve distribution of the oil.
In this embodiment, the lubricating oil path assembly further includes a fourteenth oil pipe 32, the fourteenth oil pipe 32 is connected to the second motor cooling shower assembly 26, and a second motor bearing hole 33 is formed in the fourteenth oil pipe 32, and the second motor bearing is located in the second motor bearing hole 33.
The second motor bearing hole 33 is provided with a fourth oil hole 33-1, a first oil groove 33-2 and a second oil groove 33-3, the fourth oil hole 33-1 is communicated with the fourteenth oil pipe 32, the fourth oil hole 33-1 is located between the first oil groove 33-2 and the second oil groove 33-3, oil in the first oil groove 33-2 is used for lubricating the second motor bearing, and oil in the second oil groove 33-3 is used for lubricating rollers of the second motor bearing.
The oil flow rate is controlled by adjusting the diameter of the fourth oil hole 33-1.
The oil flowing out of the fourth oil hole 33-1 enters the first oil groove 33-2 and the second oil groove 33-3 so that the liquid level gradually rises, the second motor bearing is lubricated by the oil in the first oil groove 33-2, and the rollers of the second motor bearing are lubricated by the oil in the second oil groove 33-3. The distribution of the oil quantity entering the second motor bearing hole is realized by controlling the appearance structural parameters of the first oil groove 33-2 and the second oil groove 33-3; the structure can ensure that the lubrication of the shaft and the bearing is not affected under the conditions of different gradients and left and right tilting of the whole vehicle.
According to the transmission oil path system of the hybrid electric vehicle, the following three types of oil paths are realized by reasonably arranging the parts such as the oil pipe, the suction filter, the fine filter, the spray pipe and the like: (1) a cooling oil passage: realizing motor cooling and clutch cooling; (2) pressure oil passage: executing a pressure oil path by the clutch; (3) lubricating oil path: lubrication of internal parts of the transmission includes gear shaft lubrication, bearing lubrication and the like.
In addition, the invention is provided with a two-stage filtering system, so as to meet different requirements of the clutch module and the motor module on the cleanliness of oil products, wherein the cooling and control oil way of the clutch is only filtered by a suction filter; the cooling oil circuit of the motor is subjected to two-stage filtration of the suction filter and the fine filter, so that the failure of the motor caused by excessive impurities in the oil is avoided.
The external water-cooling heat exchanger is adopted to solve the problems that the active cooling and cooling of oil are realized after the oil temperature rises after the gearbox runs, the flow of the heat exchanger can be controlled through the thermal management logic, so that the oil temperature of the gearbox is controlled in a reasonable range, the premature failure of the oil is avoided, and the efficient running of the gearbox is realized. Compared with a conventional water cooling scheme (a water channel is integrated in a clutch cavity, water sealing is realized through a sealing cover, and an aluminum casting shell is impregnated to prevent oil and water from mixing), the external water cooling heat exchanger scheme can reduce the sealing structure of the transmission, reduce the impregnation procedure of the aluminum casting shell, and save the cost to a great extent. In addition, the failure risk of clutch polishing caused by oil-water mixing is avoided, and the product quality is improved.
The invention adopts a smart split flow structure, the lubricating oil is split to the outer side of the transmission shell through the oil pipe after being cooled by the water cooler (namely, the eleventh oil pipe 24 is positioned at the outer side of the transmission shell), and is drained to corresponding bearing parts through the third oil pipe 28 and the fourteenth oil pipe 32 for bearing lubrication, so that the structure is simple, the space arrangement is compact, and the lubrication effect is full.
The oil mass distribution of the invention can be realized by the diameters of the first pipeline and the second pipeline, the number and the diameter of the first oil injection holes and the second oil injection holes, the diameter of the tenth oil pipe 22, the diameter of the eleventh oil pipe 24 and the diameter of the twelfth oil pipe 25, and the whole system realizes different requirements of each functional block on cooling and lubrication through a simple structure.
In addition, the lubrication of the three bearings, namely the first motor idler shaft bearing hole 29, the first motor input shaft bearing hole 30 and the first motor output shaft bearing hole 31, can be realized by only injecting lubricating oil into the independent thirteenth oil pipe 28 through the cooperation of the thirteenth oil pipe 28 with the first oil hole 29-1, the second oil hole 30-1 and the third oil hole 31-1, so that the complicated oil guide structural design and the strength failure risk of the oil groove opening of the bearing are effectively avoided, and the processing time is reduced.
Another embodiment of the present invention provides an automobile including the above hybrid automobile transmission oil line system.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. The transmission oil path system of the hybrid electric vehicle is characterized by comprising a clutch execution oil path assembly, wherein the clutch execution oil path assembly comprises a clutch execution motor, a clutch execution pump, a first suction filter, a clutch supporting seat, a first oil pipe, a second oil pipe, a third oil pipe and a fourth oil pipe;
The clutch executing pump is arranged below the clutch executing motor, one end of the first oil pipe is inserted into the first suction filter, the other end of the first oil pipe is connected with one end of the second oil pipe, the other end of the second oil pipe is connected with one end of the third oil pipe, the other end of the third oil pipe is inserted into the clutch executing pump, one end of the fourth oil pipe is inserted into the clutch executing pump, and the other end of the fourth oil pipe is inserted into the clutch supporting seat;
The clutch executing motor drives the clutch executing pump to work, pressure oil passes through the first oil pipe, the second oil pipe and the third oil pipe in sequence after being subjected to rough filtration of the first suction filter, then enters the clutch executing pump, then flows out through the fourth oil pipe under the action of the clutch executing pump, is conveyed into the clutch supporting seat, and finally enters the clutch executing pressure cavity;
The hybrid electric vehicle transmission oil circuit system further comprises a clutch cooling oil circuit assembly, wherein the clutch cooling oil circuit assembly comprises an electronic cooling integrated pump, a second suction filter, a connecting pipe, a fifth oil pipe, a sixth oil pipe and a clutch supporting seat;
one end of the connecting pipe is inserted into the electronic cooling integrated pump, the other end of the connecting pipe is connected with one end of the fifth oil pipe, the other end of the fifth oil pipe is connected with one end of the sixth oil pipe, and the other end of the sixth oil pipe is inserted into the clutch supporting seat;
Under the action of the electronic cooling integrated pump, cooling oil is sucked into the electronic cooling integrated pump after being subjected to rough filtration of the second suction filter, then flows through the connecting pipe and the fifth oil pipe in sequence, and after passing through the fifth oil pipe, part of cooling oil flows into the clutch support seat through the sixth oil pipe and finally enters the clutch cooling cavity;
the clutch cooling oil circuit assembly further comprises a flow limiting valve, and the flow limiting valve is arranged on the sixth oil pipe;
The hybrid electric vehicle transmission oil circuit system further comprises a motor cooling oil circuit assembly, wherein the motor cooling oil circuit assembly comprises a seventh oil pipe, an eighth oil pipe, a ninth oil pipe, a tenth oil pipe, an eleventh oil pipe, a twelfth oil pipe, a fine filter, a first cooling oil pipe, a second cooling oil pipe, a heat exchanger, a first motor cooling spray pipe assembly and a second motor cooling spray pipe assembly.
2. The hybrid vehicle transmission oil line system according to claim 1, wherein the other end of the fifth oil line is further connected to the seventh oil line, the eighth oil line, the fine filter, the ninth oil line, the first cooling oil line, the heat exchanger, the second cooling oil line, the tenth oil line are sequentially connected, the tenth oil line is respectively connected to the first motor cooling shower assembly and the eleventh oil line, the twelfth oil line, the second motor cooling shower assembly are sequentially connected, and the eleventh oil line is located outside of the transmission case;
After passing through the fifth oil pipe, the cooling oil enters the fine filter for fine filtration after passing through the seventh oil pipe and the eighth oil pipe, then enters the heat exchanger for heat exchange cooling after passing through the ninth oil pipe and the first cooling oil pipe, then enters the tenth oil pipe through the second cooling oil pipe, after passing through the tenth oil pipe, part of the cooling oil enters the first motor cooling spray pipe assembly, and the other part of the cooling oil enters the second motor cooling spray pipe assembly after passing through the eleventh oil pipe and the twelfth oil pipe.
3. The hybrid vehicle transmission oil circuit system of claim 2, wherein the first motor cooling shower assembly is provided with a plurality of first pipes having different diameters, and the first pipes are provided with a plurality of first oil spray holes having different angles and different diameters.
4. The transmission oil circuit system of a hybrid vehicle of claim 2, wherein the second motor cooling shower assembly is provided with a plurality of second pipes with different diameters, and the second pipes are provided with a plurality of second oil spray holes with different angles and different diameters.
5. The hybrid vehicle transmission oil circuit system of claim 2, further comprising a lubrication oil circuit assembly, wherein the lubrication oil circuit assembly comprises an oil guide pipe and a thirteenth oil pipe, the oil guide pipe is respectively connected with the first motor cooling spray pipe assembly and the thirteenth oil pipe, a first motor idler shaft bearing hole, a first motor input shaft bearing hole and a first motor output shaft bearing hole are formed in the thirteenth oil pipe, a first oil hole is formed in the first motor idler shaft bearing hole, a second oil hole is formed in the first motor input shaft bearing hole, a third oil hole is formed in the first motor output shaft bearing hole, and the first oil hole, the second oil hole and the third oil hole are respectively communicated with the thirteenth oil pipe.
6. The hybrid vehicle transmission oil circuit system of claim 5, wherein the lubrication circuit assembly further comprises a fourteenth oil pipe, the fourteenth oil pipe is connected with the second motor cooling spray pipe assembly, a second motor bearing hole is formed in the fourteenth oil pipe, a fourth oil hole, a first oil groove and a second oil groove are formed in the second motor bearing hole, the fourth oil hole is communicated with the fourteenth oil pipe, the fourth oil hole is located between the first oil groove and the second oil groove, oil in the first oil groove is used for lubricating a second motor bearing, and oil in the second oil groove is used for lubricating rollers of the second motor bearing.
7. An automobile comprising the hybrid automobile transmission oil circuit system of any one of claims 1-6.
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| CN113187885B (en) * | 2021-05-19 | 2023-04-28 | 麦格纳动力总成(江西)有限公司 | Integrated oil cooling system |
| CN113357351A (en) * | 2021-05-31 | 2021-09-07 | 重庆长安汽车股份有限公司 | Hybrid transmission oil circuit system and automobile |
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