CN214221970U - Cooling system of automatic transmission, engine assembly and vehicle - Google Patents
Cooling system of automatic transmission, engine assembly and vehicle Download PDFInfo
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- CN214221970U CN214221970U CN202021934669.5U CN202021934669U CN214221970U CN 214221970 U CN214221970 U CN 214221970U CN 202021934669 U CN202021934669 U CN 202021934669U CN 214221970 U CN214221970 U CN 214221970U
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Abstract
The embodiment of the application provides an automatic transmission's cooling system, engine assembly and vehicle is applied to the vehicle, is equipped with engine and automatic transmission in the vehicle, and the engine is including the cooling water route that is used for conveying the cooling water and the machine oil circuit of conveying machine oil, includes: the system comprises a water-cooled oil cooler, an oil-cooled oil cooler, a first temperature control valve and a second temperature control valve; the water-cooled oil cooler and the oil-cooled oil cooler are arranged in the engine, the water-cooled oil cooler is coupled with the cooling water path, and the oil-cooled oil cooler is coupled with the engine oil path; an oil outlet of the automatic transmission is connected with an inlet of the water-cooled oil cooler through a first temperature control valve and is connected with an inlet of the oil-cooled oil cooler through a second temperature control valve, and an oil return port of the automatic transmission is respectively connected with an outlet of the oil-cooled oil cooler and an outlet of the water-cooled oil cooler; the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the running mode of the engine. Therefore, the cooling system of the automatic transmission has rich cooling modes and occupies small space.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to an automatic transmission's cooling system, engine assembly and vehicle.
Background
With the improvement of the living standard of people, more and more people buy vehicles as transportation tools, the convenience and energy conservation of driving are the focus of attention of manufacturers and consumers, and thus, the automatic transmission vehicle becomes the first choice for the consumers to buy.
During driving of an automatic transmission vehicle, gear shifting is realized through an automatic transmission, however, the automatic transmission generates a large amount of heat, and a cooling effect is usually realized through a cooling system of the transmission. At present, a common cooling system comprises a water-cooled oil cooler and an air-cooled oil cooler, an inlet of the air-cooled oil cooler is connected with an oil outlet of an automatic transmission through a first oil duct, an outlet of the air-cooled oil cooler is communicated with an inlet of the water-cooled oil cooler through a second oil duct, an outlet of the water-cooled oil cooler is communicated with an oil return port of the automatic transmission through a third oil duct, and automatic transmission oil is cooled by the water-cooled oil cooler and the air-cooled oil cooler and then returns to the automatic transmission.
In the existing cooling system of the automatic transmission, as long as the automatic transmission works, the oil of the automatic transmission is cooled by a water-cooled oil cooler and an air-cooled oil cooler at any time, and the cooling mode is single; and, the space occupied in the vehicle is large.
Disclosure of Invention
The embodiment of the application provides a cooling system of an automatic transmission, an engine assembly and a vehicle, and aims to solve the problems that an existing cooling system of the automatic transmission is single in cooling mode and large in occupied space.
In order to solve the above problem, in one aspect, an embodiment of the present application discloses a cooling system of an automatic transmission, which is applied to a vehicle in which an engine and the automatic transmission are provided, the engine including a cooling water path for conveying cooling water and an oil path for conveying oil, the cooling system including: the system comprises a water-cooled oil cooler, an oil-cooled oil cooler, a first temperature control valve and a second temperature control valve;
the water-cooled oil cooler and the oil-cooled oil cooler are arranged in the engine, the water-cooled oil cooler is coupled with the cooling water path, and the oil-cooled oil cooler is coupled with the engine oil path;
an oil outlet of the automatic transmission is connected with an inlet of the water-cooled oil cooler through the first temperature control valve and is connected with an inlet of the oil-cooled oil cooler through the second temperature control valve, and an oil return port of the automatic transmission is respectively connected with an outlet of the oil-cooled oil cooler and an outlet of the water-cooled oil cooler;
and the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the running mode of the engine.
Further, the cooling system of the automatic transmission further includes: a controller fixedly disposed within the vehicle;
the controller is electrically connected with the first temperature control valve and the second temperature control valve respectively;
the operation modes of the engine comprise a cold start mode, a normal operation mode and an overload operation mode, the opening state of the second temperature control valve corresponds to the cold start mode, the opening state of the first temperature control valve corresponds to the normal operation mode, and the opening state of the first temperature control valve and the opening state of the second temperature control valve correspond to the overload operation mode;
the controller is used for controlling the second temperature control valve to be opened in the cold starting mode, controlling the first temperature control valve to be opened in the normal operation mode, and controlling the first temperature control valve and the second temperature control valve to be opened simultaneously in the overload operation mode.
Further, the cooling system of the automatic transmission further comprises an oil outlet channel and an oil return channel;
an oil outlet of the automatic transmission is respectively connected with an inlet of the water-cooled oil cooler and an inlet of the oil-cooled oil cooler through the oil outlet channel, and an oil return port of the automatic transmission is respectively connected with an outlet of the water-cooled oil cooler and an outlet of the oil-cooled oil cooler through the oil return channel;
the first temperature control valve and the second temperature control valve are arranged on the oil outlet channel.
Furthermore, the oil outlet channel comprises a main oil outlet pipe, a first branch oil outlet pipe and a second branch oil outlet pipe, and the oil return channel comprises a main oil return pipe, a first branch oil return pipe and a second branch oil return pipe;
the main oil outlet pipe is connected with an inlet of the water-cooled oil cooler through the first branch oil outlet pipe and is connected with an inlet of the oil-cooled oil cooler through the second branch oil outlet pipe, wherein the first temperature control valve is fixedly arranged on the first branch oil outlet pipe, and the second temperature control valve is fixedly arranged on the second branch oil outlet pipe;
the main oil return pipe is connected with an outlet of the water-cooled oil cooler through the first oil return branch pipe and is connected with an outlet of the oil-cooled oil cooler through the second oil return branch pipe.
Further, the cooling system of the automatic transmission further comprises a first tee pipe;
the first end of the first three-way pipe is communicated with the main oil outlet pipe, the second end of the first three-way pipe is communicated with the first branch oil outlet pipe, and the third end of the first three-way pipe is communicated with the second branch oil outlet pipe.
Further, the cooling system of the automatic transmission further comprises a second three-way pipe;
the first end of the second three-way pipe is communicated with the main oil return pipe, the second end of the second three-way pipe is communicated with the first oil return branch pipe, and the third end of the second three-way pipe is communicated with the second oil return branch pipe.
Furthermore, the first temperature control valve is fixedly arranged at an inlet of the first branch oil outlet pipe close to the water-cooled oil cooler;
the second temperature control valve is fixedly arranged at the position, close to the inlet of the oil-cooled oil cooler, of the second branch oil outlet pipe.
Further, the first temperature control valve and the second temperature control valve are both electric temperature control valves.
On the other hand, the embodiment of the application also discloses an engine assembly which comprises the cooling system of the automatic transmission.
In another aspect, the embodiment of the application also discloses a vehicle, which comprises the engine assembly.
The cooling system of an automatic transmission described in the present application has at least the following advantages:
automatic transmission's cooling system, set up water-cooling oil cooler and oil-cooling oil cooler in the engine, through the cooling water route coupling connection with water-cooling oil cooler and engine, cool off automatic transmission oil with the cooling water that utilizes in the engine, through the machine oil circuit coupling connection with oil-cooling oil cooler and engine, cool off automatic transmission oil with the machine oil that utilizes in the engine, like this, can reduce the occupation space of oil-cooling oil cooler and water-cooling oil cooler in the vehicle. Because the oil outlet of the automatic transmission is connected with the inlet of the water-cooled oil cooler through the first temperature control valve and is connected with the inlet of the oil-cooled oil cooler through the second temperature control valve, the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the operation modes of the engine, namely, the cooling mode can be flexibly selected according to the operation modes of the engine, namely, the water-cooled oil cooler, the oil-cooled oil cooler, or the water-cooled oil cooler and the oil-cooled oil cooler.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a cooling system of an automatic transmission according to an embodiment of the present application.
Description of reference numerals:
10-engine, 20-automatic transmission, 21-oil outlet, 22-oil return port, 30-water-cooled oil cooler, 31-inlet of water-cooled oil cooler, 32-outlet of water-cooled oil cooler, 40-oil-cooled oil cooler, 41-inlet of oil-cooled oil cooler, 42-outlet of oil-cooled oil cooler, 50-first temperature control valve, 60-second temperature control valve, 70-controller, 80-oil outlet channel, 81-main oil outlet pipe, 82-first branch oil outlet pipe, 83-second branch oil outlet pipe, 90-oil return channel, 91-main oil return pipe, 92-first branch oil return pipe, 93-second branch oil return pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic diagram showing a cooling system structure of an automatic transmission according to an embodiment of the present application. In an embodiment of the present application, the cooling system of an automatic transmission may be applied to a vehicle, where an engine is provided in the vehicle, the engine includes a cooling water path for conveying cooling water and an oil path for conveying oil, and specifically may include: the automatic transmission 20, the water-cooled oil cooler 30, the oil-cooled oil cooler 40, the first temperature control valve 50, and the second temperature control valve 60; the water-cooled oil cooler 30 is coupled with a cooling water path, and the oil-cooled oil cooler 40 is coupled with an engine oil path; an oil outlet 21 of the automatic transmission 20 is connected with an inlet 31 of the water-cooled oil cooler through a first temperature control valve 50 and is connected with an inlet 41 of the oil-cooled oil cooler through a second temperature control valve 60, and an oil return port 22 of the automatic transmission 20 is respectively connected with an outlet 42 of the oil-cooled oil cooler and an outlet 32 of the water-cooled oil cooler; the on-off state of the first temperature-controlled valve 50 and the on-off state of the second temperature-controlled valve 60 correspond to the operation mode of the engine 10, respectively.
In practical application, an engine is fixedly arranged in a vehicle, the engine is provided with a cooling system, and the cooling system of the engine comprises a water cooling system and an engine oil cooling system. The water cooling system mainly conveys cooling water through a cooling water path, and the flowing cooling water circularly flows in a water jacket wrapped outside the engine, so that the cooling effect is realized. The oil cooling system mainly conveys oil through the oil path, and the flowing oil can flow into each part in the engine from each branch port of the oil path, thereby realizing the cooling effect.
It should be noted that the specific components of the engine cooling system belong to the conventional technology in the field, and the embodiments of the present application are not described in detail. Based on this, as shown in fig. 1, in the present embodiment, a water-cooled oil cooler 30 and an oil-cooled oil cooler 40 are disposed in the engine 10, and the coupling connection between the water-cooled oil cooler 30 and the cooling water path is specifically: the water-cooled oil cooler 30 is disposed in a cooling water path of the engine 10, and may be wrapped by a water jacket, and the automatic transmission oil in the water-cooled oil cooler 30 is cooled by circulating bad cooling water. The coupling connection of the oil-cooled oil cooler 40 and the engine oil circuit is specifically as follows: the oil-cooled oil cooler 40 is disposed in an oil path of the engine 10, and the engine oil flowing from a branch port of the oil path may flow on the surface of the oil-cooled oil cooler 40, thereby cooling the automatic transmission oil in the oil-cooled oil cooler 40.
Specifically, as shown in fig. 1, the cooling system of the automatic transmission 20 of the present embodiment includes an automatic transmission 20, a water-cooled oil cooler 30, an oil-cooled oil cooler 40, a first temperature control valve 50 and a second temperature control valve 60, the automatic transmission 20 is connected to the engine 10, since the water-cooled oil cooler 30 is coupled to a cooling water circuit, the oil-cooled oil cooler 40 is coupled to an oil circuit, an oil outlet 21 of the automatic transmission 20 is connected to an inlet 31 of the water-cooled oil cooler through the first temperature control valve 50 and is connected to an inlet 41 of the oil-cooled oil cooler through the second temperature control valve 60, an oil return port 22 of the automatic transmission 20 is respectively connected to an outlet 42 of the oil-cooled oil cooler and an outlet 32 of the water-cooled oil cooler, so that the automatic transmission oil flowing out of the oil outlet 21 of the automatic transmission 20 can flow into the water-cooled oil cooler 30 through the first temperature control valve 50 to be cooled, and then flows back to the automatic transmission 20 from the oil return port 22 of the automatic transmission 20 after being cooled, the automatic transmission oil may be cooled again using the cooling water in the engine 10 while flowing through the water-cooled oil cooler 30, so that the automatic transmission oil may be rapidly cooled; the automatic transmission oil flowing out of the oil outlet 21 of the automatic transmission 20 may flow into the oil-cooled oil cooler 40 through the second temperature control valve 60 to be cooled, and then may flow back to the automatic transmission 20 from the oil return port 22 of the automatic transmission 20 after being cooled, and the automatic transmission oil may be cooled again by using the engine oil in the engine 10 in the process of flowing through the oil-cooled oil cooler 40, so that the automatic transmission oil may be rapidly cooled.
In the prior art, a cooling system of an automatic transmission and a cooling system of an engine are two independent cooling systems, that is, a water-cooled oil cooler and an air-cooled oil cooler in the cooling system of the automatic transmission are arranged outside the engine, and occupy space in a vehicle. In the embodiment of the present application, the water-cooled oil cooler 30 and the oil-cooled oil cooler 40 are disposed in the engine 10, the automatic transmission oil in the water-cooled oil cooler 30 is cooled by the water cooling system of the engine 10, and the automatic transmission oil in the oil-cooled oil cooler 40 is cooled by the engine oil cooling system of the engine 10.
Specifically, the on-off state of the first temperature-controlled valve 50 and the on-off state of the second temperature-controlled valve 60 correspond to the operation mode of the engine 10, that is, the open and closed states of the first temperature-controlled valve 50 correspond to the operation mode of the engine 10, and the open and closed states of the second temperature-controlled valve 60 correspond to the operation mode of the engine 10, respectively. Specifically, in the case where the first thermo valve 50 is opened and the second thermo valve 60 is closed, which may correspond to one operation mode (for example, a cold start mode) of the engine 10, the automatic transmission oil flows out of the oil outlet 21, is cooled by the water-cooled oil cooler 30, and then flows back to the automatic transmission 20 through the oil return port 22; in the case where the second thermo valve 60 is opened and the first thermo valve 50 is closed, which may correspond to another operation mode (e.g., a normal operation mode) of the engine 10, the automatic transmission oil flows out of the oil outlet 21, is cooled by the oil-cooled oil cooler 40, and then flows back to the automatic transmission 20 through the oil return port 22; in the case where the first and second temperature-controlled valves 50 and 60 are simultaneously opened, which may correspond to still another operation mode (e.g., an overload operation mode) of the engine 10, the automatic transmission oil flows out of the oil outlet 21, is cooled by the water-cooled oil cooler 30 and the oil-cooled oil cooler 40, respectively, and then flows back to the automatic transmission 20 through the oil return port 22. It can be seen that the cooling system of the automatic transmission 20 according to the embodiment of the present invention has a rich cooling mode, and the cooling mode can be flexibly selected according to the real-time running condition of the vehicle, so that the automatic transmission oil is controlled within a suitable range, thereby improving the working efficiency of the automatic transmission 20.
In the embodiment of the present application, the cooling system of the automatic transmission 20 further includes: a controller 70, the controller 70 being fixedly provided in the vehicle; the controller 70 is electrically connected to the first temperature control valve 50 and the second temperature control valve 60, respectively; the operation modes of the engine 10 include a cold start mode, a normal operation mode, and an overload operation mode, the open state of the second temperature control valve 60 corresponds to the cold start mode, the open state of the first temperature control valve 50 corresponds to the normal operation mode, the open state of the first temperature control valve 50 and the open state of the second temperature control valve 60 correspond to the overload operation mode, and the controller 70 is configured to control the second temperature control valve 60 to be opened in the cold start mode, control the first temperature control valve 50 to be opened in the normal operation mode, and control the first temperature control valve 50 and the second temperature control valve 60 to be opened simultaneously in the overload operation mode.
Specifically, when the operation mode of the engine 10 is the cold start mode, the controller 70 may control the second thermo valve 60 to open and the first thermo valve 50 to close, so that the automatic transmission oil flows out from the oil outlet 21, passes through the oil-cooled oil cooler 40 for cooling, and then flows back to the automatic transmission 20 through the oil return port 22, and the automatic transmission oil may be cooled again by the engine oil in the engine 10 while passing through the oil-cooled oil cooler 40. When the engine 10 is cold started, the oil temperature of the engine oil of the engine 10 is higher than that of the automatic transmission oil, so that the oil temperature of the automatic transmission oil can be increased by the engine oil in the engine 10, thereby increasing the transmission efficiency of the automatic transmission 20, when the oil temperature of the automatic transmission oil is raised to 90 ℃, the controller 70 can control the second temperature control valve 60 to close, the operation mode of the engine 10 is changed into a normal operation mode, the controller 70 can control the first temperature control valve 50 to open, the automatic transmission oil flows out from the oil outlet 21, is cooled by the water-cooled oil cooler 30, and then flows back to the automatic transmission 20 through the oil return opening 22, the automatic transmission oil can be cooled again by the cooling water in the engine 10 in the process of passing through the water-cooled oil cooler 30, the vehicle runs uninterruptedly for a long time, and the oil temperature (the oil temperature is higher than 100 ℃), the operation mode of the engine 10 is changed to an overload operation mode, the controller 70 may control the second temperature control valve 60 to be opened again, the automatic transmission oil flows out from the oil outlet 21, is cooled by the water-cooled oil cooler 30 and the oil-cooled oil cooler 40, and then flows back to the automatic transmission 20 through the oil return port 22, and the automatic transmission oil may be cooled again by using the cooling water and the engine oil in the engine 10 during the process of passing through the water-cooled oil cooler 30 and the oil-cooled oil cooler 40, so as to rapidly cool the high-temperature automatic transmission oil to a temperature range (90 ℃ -100 ℃) suitable for the operation of the engine 10. It can be seen that the cooling system of the automatic transmission 20 of the present embodiment has a rich cooling mode, and the controller 70 can control the on/off of the two thermostats according to the real-time operating condition of the vehicle, that is, flexibly select the cooling mode according to the real-time operating condition of the vehicle, so that the automatic transmission oil is controlled within a suitable range (90 ℃ -100 ℃) to improve the working efficiency of the automatic transmission 20.
It should be noted that the temperature corresponding to the opening of the first temperature control valve 50 and the second temperature control valve 60 is only a preferable embodiment, and may be set according to the actual running condition of the vehicle, and the embodiment is not limited.
In the embodiment of the present application, the cooling system of the automatic transmission 20 further includes an oil outlet passage 80 and an oil return passage 90; an oil outlet 21 of the automatic transmission 20 is respectively connected with an inlet 31 of the water-cooled oil cooler and an inlet 41 of the oil-cooled oil cooler through an oil outlet channel 80, and an oil return port 22 of the automatic transmission 20 is respectively connected with an outlet 32 of the water-cooled oil cooler and an outlet 42 of the oil-cooled oil cooler through an oil return channel 90; wherein, the first temperature control valve 50 and the second temperature control valve 60 are provided on the oil outlet passage 80.
Specifically, as shown in fig. 1, the cooling system of the automatic transmission 20 further includes an oil outlet passage 80 and an oil return passage 90, the oil outlet 21 of the automatic transmission 20 is connected to the inlet 31 of the water-cooled oil cooler and the inlet 41 of the oil-cooled oil cooler through the oil outlet passage 80, respectively, and the first temperature control valve 50 and the second temperature control valve 60 are disposed on the oil outlet passage 80, so that, when the first temperature control valve 50 is opened, the automatic transmission oil flows out from the oil outlet 21 of the automatic transmission 20, flows into the inlet 31 of the water-cooled oil cooler through the oil outlet passage 80, flows out from the outlet 32 of the water-cooled oil cooler after flowing through the water-cooled oil cooler 30, and flows back into the automatic transmission 20 from the oil return port 22 through the oil return passage 90, so that the automatic transmission oil circulates in accordance with the temperature at which the engine 10 operates; when the second thermo valve 60 is opened, the automatic transmission oil flows out from the oil outlet 21 of the automatic transmission 20, flows into the inlet 41 of the oil-cooled oil cooler through the oil outlet passage 80, flows out from the outlet 42 of the oil-cooled oil cooler after flowing through the oil-cooled oil cooler 40, and flows back into the automatic transmission 20 from the oil return port 22 through the oil return passage 90, so that the automatic transmission oil circulates to adapt to the temperature at which the engine 10 operates.
Specifically, the present embodiment couples the water-cooled oil cooler 30 and the oil-cooled oil cooler 40 to the engine 10, as compared with the prior art, so that the space occupied by the cooling system of the automatic transmission 20 in the vehicle can be reduced, and the oil passages respectively connected between the automatic transmission 20 and the water-cooled oil cooler 30 and the oil-cooled oil cooler 40 can be easily arranged.
In the embodiment of the present application, the oil outlet passage 80 includes a main oil outlet pipe 81, a first branch oil outlet pipe 82 and a second branch oil outlet pipe 83, and the oil return passage 90 includes a main oil return pipe 91, a first branch oil return pipe 92 and a second branch oil return pipe 93; the main oil outlet pipe 81 is connected with the inlet 31 of the water-cooled oil cooler through a first branch oil outlet pipe 82 and is connected with the inlet 41 of the oil-cooled oil cooler through a second branch oil outlet pipe 83, wherein the first temperature control valve 50 is fixedly arranged on the first branch oil outlet pipe 82, and the second temperature control valve 60 is fixedly arranged on the second branch oil outlet pipe 83; the main oil return pipe 91 is connected to the outlet of the water-cooled oil cooler 30 through a first oil return branch pipe 92, and is connected to the outlet of the oil-cooled oil cooler 40 through a second oil return branch pipe 93.
Specifically, as shown in fig. 1, the oil outlet passage 80 includes a main oil outlet pipe 81, a first branch oil outlet pipe 82 and a second branch oil outlet pipe 83, and the oil return passage 90 includes a main oil return pipe 91, a first branch oil return pipe 92 and a second branch oil return pipe 93, so that oil pipes can be flexibly arranged according to the space of the vehicle and the positions of the water-cooled oil cooler 30 and the oil-cooled oil cooler 40 in the engine 10, and specifically, the main oil outlet pipe 81 is connected to the inlet 31 of the water-cooled oil cooler through the first branch oil outlet pipe 82 and is connected to the inlet 41 of the oil-cooled oil cooler through the second branch oil outlet pipe 83, wherein the first temperature control valve 50 is fixedly disposed on the first branch oil outlet pipe 82, the second temperature control valve 60 is fixedly disposed on the second branch oil outlet pipe 83, and when the first temperature control valve 50 is opened, the automatic transmission oil flows out from the oil outlet 21 of the automatic transmission 20, sequentially flows into the inlet 31 of the water-cooled oil cooler through the main oil outlet pipe 81 and the first branch oil outlet pipe 82, flows out of the water-cooled oil cooler 30 through the water-cooled oil cooler outlet 32, and flows back to the automatic transmission 20 from the oil return port 22 through the first branch oil return pipe 92 and the main oil return pipe 91 in sequence, so that the automatic transmission oil circularly flows at a temperature suitable for the operation of the engine 10; when the second thermostatic valve 60 is opened, the automatic transmission oil flows out from the oil outlet 21 of the automatic transmission 20, flows into the inlet 41 of the oil-cooled oil cooler through the main oil outlet pipe 81 and the second branch oil outlet pipe 83 in sequence, flows out from the outlet 42 of the oil-cooled oil cooler after flowing through the oil-cooled oil cooler 40, and then flows back into the automatic transmission 20 from the oil return port 22 through the second branch oil return pipe 93 and the main oil return pipe 91 in sequence, so that the automatic transmission oil circularly flows at a temperature suitable for the operation of the engine 10.
In the embodiment of the present application, the cooling system of the automatic transmission 20 further includes a first three-way pipe; the first end of the first tee pipe is communicated with the main oil outlet pipe 81, the second end of the first tee pipe is communicated with the first branch oil outlet pipe 82, and the third end of the first tee pipe is communicated with the second branch oil outlet pipe 83.
Specifically, the cooling system of the automatic transmission 20 further includes a first three-way pipe (not shown in the figure), a first end of the first three-way pipe is communicated with the main oil outlet pipe 81, a second end of the first three-way pipe is communicated with the first branch oil outlet pipe 82, and a third end of the first three-way pipe is communicated with the second branch oil outlet pipe 83, so that the first three-way pipe can change the flow direction of the automatic transmission oil, and the automatic transmission oil in the main oil outlet pipe 81 can flow to the water-cooled oil cooler 30 through the first branch oil outlet pipe 82 or flow to the oil-cooled oil cooler 40 through the second branch oil outlet pipe 83.
In the embodiment of the present application, the cooling system of the automatic transmission 20 further includes a second three-way pipe; the first end of the second three-way pipe is communicated with the main oil return pipe 91, the second end of the second three-way pipe is communicated with the first oil return branch pipe 92, and the third end of the second three-way pipe is communicated with the second oil return branch pipe 93.
Specifically, the cooling system of the automatic transmission 20 further includes a second three-way pipe (not shown in the figure), a first end of the second three-way pipe is communicated with the main oil return pipe 91, a second end of the second three-way pipe is communicated with the first oil return branch pipe 92, and a third end of the second three-way pipe is communicated with the second oil return branch pipe 93, so that the second three-way pipe can change the flow direction of the automatic transmission oil, so that the automatic transmission oil cooled by the water-cooled oil cooler 30 can flow to the main oil return pipe 91 through the first oil return branch pipe 92, and the automatic transmission oil cooled by the oil-cooled oil cooler 40 can flow to the main oil return pipe 91 through the second oil return branch pipe 93 and then flows back to the automatic transmission 20 through the main oil return pipe 91.
In the embodiment of the present application, the first thermo-valve 50 is fixedly disposed at the first branch oil outlet pipe 82 near the inlet 31 of the water-cooled oil cooler; the second thermo valve 60 is fixedly installed at the second branch oil pipe 83 near the inlet 41 of the oil-cooled oil cooler.
Specifically, as shown in fig. 1, the first thermo valve 50 is fixedly disposed at the first branch oil pipe 82 near the inlet 31 of the water-cooled oil cooler, so that the automatic transmission oil in the first branch oil pipe 82 can flow into the water-cooled oil cooler 30 to be cooled more quickly, and the automatic transmission oil is cooled more quickly.
Specifically, as shown in fig. 1, the second thermo valve 60 is fixedly disposed at the second branch oil pipe 83 near the inlet 41 of the oil-cooled oil cooler, so that the automatic transmission oil in the second branch oil pipe 83 can more rapidly flow into the oil-cooled oil cooler 40 to be cooled, thereby more rapidly cooling the automatic transmission oil.
It should be noted that the first temperature control valve 50 may also be integrated on the water-cooled oil cooler 30, and designed to be integrated or detachable, and the detachable first temperature control valve 50 is convenient for after-sale detachment and use, and is more convenient; the second temperature control valve 60 can also be integrated on the oil-cooled oil cooler 40 and designed to be integrated or detachable, and the detachable first temperature control valve 50 is convenient to disassemble and use after sale and is more convenient; of course, the specific installation positions of the first temperature control valve 50 and the second temperature control valve 60 are not limited in this embodiment.
In the embodiment of the present application, the first temperature control valve 50 and the second temperature control valve 60 are both electric temperature control valves.
Specifically, the first temperature control valve 50 and the second temperature control valve 60 are both electric temperature control valves, and since the electric temperature control valves have the advantages of accurate control, sensitive adjustment and large shut-off force, the first temperature control valve 50 and the second temperature control valve 60 also have the advantages of accurate control, sensitive adjustment and large shut-off force.
For example, when the oil temperature of the automatic transmission oil is less than 90 ℃, the second thermo valve 60 is opened, so that the automatic transmission oil flows back into the automatic transmission 20 after being cooled by the oil-cooled oil cooler 40, during the cooling process, since the oil temperature of the engine oil of the engine 10 rises faster than the oil temperature of the automatic transmission oil, the oil temperature of the automatic transmission oil can be raised by the engine oil of the engine 10 to improve the transmission efficiency of the automatic transmission 20, and when the oil temperature rises to 90 ℃, the second thermo valve 60 is closed; then, the first thermo valve 50 is opened, so that the automatic transmission oil flows back into the automatic transmission 20 after being cooled by the water-cooled oil cooler 30, so that the automatic transmission oil can be controlled to circularly flow within a proper range (90 ℃ to 100 ℃); when the oil temperature continues to rise and exceeds 100 ℃, the second temperature control valve 60 is opened again, the automatic transmission oil is cooled by the water-cooled oil cooler 30 and the oil-cooled oil cooler 40 respectively and then flows back to the automatic transmission 20 through the oil return opening 22, so that the oil temperature of the automatic transmission 20 can be quickly reduced to be within a proper range (90 ℃ -100 ℃), and when the oil temperature is reduced to 100 ℃, the second temperature control valve 60 is closed. It should be noted that the temperature corresponding to the opening of the first temperature control valve 50 and the second temperature control valve 60 is only a preferable scheme, and may be specifically set according to the actual running condition of the vehicle, and the embodiment is not limited.
In summary, the cooling system for an automatic transmission described in the present application has at least the following advantages:
automatic transmission's cooling system, set up water-cooling oil cooler and oil-cooling oil cooler in the engine, through the cooling water route coupling connection with water-cooling oil cooler and engine, cool off automatic transmission oil with the cooling water that utilizes in the engine, through the machine oil circuit coupling connection with oil-cooling oil cooler and engine, cool off automatic transmission oil with the machine oil that utilizes in the engine, like this, can reduce the occupation space of oil-cooling oil cooler and water-cooling oil cooler in the vehicle. Because the oil outlet of the automatic transmission is connected with the inlet of the water-cooled oil cooler through the first temperature control valve and is connected with the inlet of the oil-cooled oil cooler through the second temperature control valve, the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the operation modes of the engine, namely, the cooling mode can be flexibly selected according to the operation modes of the engine, namely, the water-cooled oil cooler, the oil-cooled oil cooler, or the water-cooled oil cooler and the oil-cooled oil cooler.
The embodiment of the application also provides an engine assembly which comprises the cooling system of the automatic transmission.
In this application embodiment, because the engine assembly includes above-mentioned automatic transmission's cooling system, to automatic transmission's cooling system, with water-cooling oil cooler and oil cooling oil cooler set up in the engine, through the cooling water route coupling connection with water-cooling oil cooler and engine, cool off automatic transmission oil with the cooling water in the engine, through the machine oil way coupling connection with oil cooling oil cooler and engine, cool off automatic transmission oil with the machine oil in the engine, like this, can reduce the occupation space of oil cooling oil cooler and water cooling oil cooler in the vehicle. Because the oil outlet of the automatic transmission is connected with the inlet of the water-cooled oil cooler through the first temperature control valve and is connected with the inlet of the oil-cooled oil cooler through the second temperature control valve, the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the operation modes of the engine, namely, the cooling mode can be flexibly selected according to the operation modes of the engine, namely, the water-cooled oil cooler, the oil-cooled oil cooler, or the water-cooled oil cooler and the oil-cooled oil cooler.
The embodiment of the application also provides a vehicle, and the vehicle comprises the engine assembly.
In this embodiment, the vehicle includes the above-mentioned engine assembly, the engine assembly includes the cooling system of above-mentioned automatic gearbox, to the cooling system of automatic gearbox, water-cooling oil cooler and oil cooling oil cooler set up in the engine, through the cooling water route coupling connection with water-cooling oil cooler and engine, cool off automatic gearbox oil with the cooling water in the engine, through the machine oil way coupling connection with oil cooling oil cooler and engine, cool off automatic gearbox oil with the machine oil in the engine, so, can reduce the occupation space of oil cooling oil cooler and water cooling oil cooler in the vehicle. Because the oil outlet of the automatic transmission is connected with the inlet of the water-cooled oil cooler through the first temperature control valve and is connected with the inlet of the oil-cooled oil cooler through the second temperature control valve, the on-off state of the first temperature control valve and the on-off state of the second temperature control valve respectively correspond to the operation modes of the engine, namely, the cooling mode can be selected through the water-cooled oil cooler or the oil-cooled oil cooler or the water-cooled oil cooler and the oil-cooled oil cooler according to the operation modes of the engine, therefore, the cooling mode of the cooling system of the automatic transmission in the vehicle is rich, the cooling mode can be flexibly selected according to the real-time operation condition of the vehicle, so that the oil of the automatic transmission is controlled in a proper range, the working efficiency of the automatic transmission is improved, and the working efficiency of the vehicle is improved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.
Claims (10)
1. A cooling system of an automatic transmission applied to a vehicle in which an engine (10) including a cooling water path for conveying cooling water and an oil path for conveying oil and an automatic transmission (20) are provided, comprising: the system comprises a water-cooled oil cooler (30), an oil-cooled oil cooler (40), a first temperature control valve (50) and a second temperature control valve (60);
the water-cooling oil cooler (30) and the oil-cooling oil cooler (40) are arranged in the engine (10), the water-cooling oil cooler (30) is in coupling connection with the cooling water path, and the oil-cooling oil cooler (40) is in coupling connection with the engine oil path;
an oil outlet (21) of the automatic transmission is connected with an inlet (31) of the water-cooled oil cooler through the first temperature control valve (50) and is connected with an inlet (41) of the oil-cooled oil cooler through the second temperature control valve (60), and an oil return port (22) of the automatic transmission is respectively connected with an outlet (42) of the oil-cooled oil cooler and an outlet (32) of the water-cooled oil cooler;
the on-off state of the first temperature control valve (50) and the on-off state of the second temperature control valve (60) correspond to the operation mode of the engine (10), respectively.
2. The cooling system of an automatic transmission according to claim 1, characterized by further comprising: a controller (70), the controller (70) being fixedly disposed within the vehicle;
the controller (70) is electrically connected with the first temperature control valve (50) and the second temperature control valve (60) respectively;
wherein the operation modes of the engine (10) include a cold start mode, a normal operation mode, and an overload operation mode, the open state of the second temperature control valve (60) corresponds to the cold start mode, the open state of the first temperature control valve (50) corresponds to the normal operation mode, and the open state of the first temperature control valve (50) and the open state of the second temperature control valve (60) correspond to the overload operation mode;
the controller (70) is configured to control the second thermo valve (60) to open in the cold start mode, control the first thermo valve (50) to open in the normal operation mode, and control the first thermo valve (50) and the second thermo valve (60) to open simultaneously in the overload operation mode.
3. The cooling system of an automatic transmission according to claim 1, characterized by further comprising an oil outlet passage (80) and an oil return passage (90);
an oil outlet (21) of the automatic transmission is respectively connected with an inlet (31) of the water-cooling oil cooler and an inlet (41) of the oil-cooling oil cooler through the oil outlet channel (80), and an oil return port (22) of the automatic transmission is respectively connected with an outlet (32) of the water-cooling oil cooler and an outlet (42) of the oil-cooling oil cooler through the oil return channel (90);
wherein the first temperature control valve (50) and the second temperature control valve (60) are disposed on the oil outlet passage (80).
4. The cooling system of an automatic transmission according to claim 3, wherein said oil outlet passage (80) includes a main oil outlet pipe (81), a first branch oil outlet pipe (82), and a second branch oil outlet pipe (83), and said oil return passage (90) includes a main oil return pipe (91), a first branch oil return pipe (92), and a second branch oil return pipe (93);
the main oil outlet pipe (81) is connected with an inlet (31) of the water-cooling oil cooler through the first branch oil outlet pipe (82) and is connected with an inlet (41) of the oil-cooling oil cooler through the second branch oil outlet pipe (83), wherein the first temperature control valve (50) is fixedly arranged on the first branch oil outlet pipe (82), and the second temperature control valve (60) is fixedly arranged on the second branch oil outlet pipe (83);
the main oil return pipe (91) is connected with an outlet (32) of the water-cooled oil cooler through the first oil return branch pipe (92) and is connected with an outlet (42) of the oil-cooled oil cooler through the second oil return branch pipe (93).
5. The cooling system of an automatic transmission according to claim 4, characterized by further comprising a first tee pipe;
the first end of the first three-way pipe is communicated with the main oil outlet pipe (81), the second end of the first three-way pipe is communicated with the first branch oil outlet pipe (82), and the third end of the first three-way pipe is communicated with the second branch oil outlet pipe (83).
6. The cooling system of an automatic transmission according to claim 4, characterized by further comprising a second three-way pipe;
the first end of the second three-way pipe is communicated with the main oil return pipe (91), the second end of the second three-way pipe is communicated with the first oil return branch pipe (92), and the third end of the second three-way pipe is communicated with the second oil return branch pipe (93).
7. The cooling system of an automatic transmission according to claim 4, wherein said first temperature-controlled valve (50) is fixedly provided at said first branch oil line (82) near an inlet (31) of said water-cooled oil cooler;
and the second temperature control valve (60) is fixedly arranged at the position, close to the inlet (41) of the oil-cooled oil cooler, of the second branch oil outlet pipe (83).
8. The cooling system of an automatic transmission according to claim 1, characterized in that the first temperature-controlled valve (50) and the second temperature-controlled valve (60) are both electric temperature-controlled valves.
9. An engine assembly characterized by comprising the cooling system of an automatic transmission according to any one of claims 1 to 8.
10. A vehicle characterized by comprising an engine assembly as recited in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021934669.5U CN214221970U (en) | 2020-09-07 | 2020-09-07 | Cooling system of automatic transmission, engine assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021934669.5U CN214221970U (en) | 2020-09-07 | 2020-09-07 | Cooling system of automatic transmission, engine assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221970U true CN214221970U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021934669.5U Active CN214221970U (en) | 2020-09-07 | 2020-09-07 | Cooling system of automatic transmission, engine assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221970U (en) |
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2020
- 2020-09-07 CN CN202021934669.5U patent/CN214221970U/en active Active
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