CN110273746B - Parallel type cooling system for vehicle and operation method thereof - Google Patents
Parallel type cooling system for vehicle and operation method thereof Download PDFInfo
- Publication number
- CN110273746B CN110273746B CN201910355897.2A CN201910355897A CN110273746B CN 110273746 B CN110273746 B CN 110273746B CN 201910355897 A CN201910355897 A CN 201910355897A CN 110273746 B CN110273746 B CN 110273746B
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- engine
- gearbox
- temperature radiator
- cooling
- low
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- 238000001816 cooling Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000000498 cooling water Substances 0.000 claims abstract description 20
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to the technical field of automobile heat management, in particular to a parallel type automobile cooling system and an operation method thereof. The engine, the high-temperature radiator, the low-temperature radiator, the gearbox cooler and the gearbox or the electric appliance element are included, the gearbox cooler is provided with a circulating cooling water pipe, and the circulating cooling water pipe is arranged in the gearbox or the electric appliance element; an engine circulation heat dissipation water channel is arranged in the engine, two sides of the engine circulation heat dissipation water channel are respectively provided with a branch pipe, and a high-temperature radiator and a low-temperature radiator are connected in parallel between the two branch pipes; the low-temperature radiator is provided with an inlet and outlet type electric control water valve on a branch pipe at the communication part of the low-temperature radiator and the engine circulation radiating water channel, the inlet and outlet type electric control water valve is communicated with the gearbox cooler, and the gearbox cooler is communicated with the engine circulation radiating water channel. An electric control water valve is designed between the high-temperature water paths and the low-temperature water paths, and the temperature of the engine and the temperature of a gearbox or an electric element are optimally distributed by combining a thermostat.
Description
Technical Field
The invention relates to the technical field of automobile heat management, in particular to a parallel type automobile cooling system and an operation method thereof.
Background
Along with the current development trend of automation and intellectualization of automobile driving, more and more automobiles use an automatic gearbox, and the requirement of the automatic gearbox on working temperature is very high, if water cannot be taken from an engine to meet the cooling requirement of gearbox oil, a cooling system capable of meeting the thermal management requirement and having lower cost is designed. In addition, along with the gradual maturation of energy technology and the promotion of national policy, the development of new energy automobiles such as plug-in hybrid power and the like is rapidly developed, and in order to adapt to new thermal management requirements and more complex cooling requirements of new energy automobiles, two independent cooling systems are adopted for cooling an engine and cooling a motor in most automobile types, the two systems mean huge pressures of cost, weight and management, and how to design a cooling system meeting the requirements of performance and low cost is a necessary research.
The highest water temperature of the traditional fuel oil vehicle engine is generally required to be within 105-115 ℃, the water temperature of the engine inlet is usually 95-105 ℃ after the engine is cooled by a radiator, which means that the lowest water temperature in the whole engine is above 95-105 ℃, and when the water temperature requirement of the inlet of a gearbox (or an electrical element and the like) is lower than 95 ℃, the heat dissipation requirement of the gearbox cannot be met by directly taking water from the engine. If a transmission cooling circuit is designed independently, the invention 'a method for operating a parallel-type vehicular cooling system' can effectively solve the problems above, which are faced with very large cost pressures.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the actual needs and provide a parallel-type vehicle cooling system and an operation method thereof.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the cooling system for the parallel type vehicle comprises an engine 2, a high-temperature radiator 3, a low-temperature radiator 4, a gearbox cooler 6 and a gearbox or an electric element 8, wherein the gearbox cooler 6 is provided with a circulating cooling water pipe, and the circulating cooling water pipe is arranged in the gearbox or the electric element 8; an engine circulation heat dissipation water channel is arranged in the engine 2, two sides of the engine circulation heat dissipation water channel are respectively provided with a branch pipe, and a high-temperature radiator 3 and a low-temperature radiator 4 are connected in parallel between the two branch pipes; the branch pipe at the communication part of the low-temperature radiator 4 and the engine circulation radiating water channel is provided with a two-inlet and two-outlet type electric control water valve 5, the two-inlet and two-outlet type electric control water valve 5 is communicated with the gearbox cooler 6, and the gearbox cooler 6 is communicated with the engine circulation radiating water channel.
A water pump 1 is arranged in the engine circulation heat dissipation water channel, and the gearbox cooler 6 is communicated with the water pump.
One side of the water pump 1 is connected with a thermostat 7, and the water pump 1 and the thermostat 7 are arranged on a branch pipe connected with the high-temperature radiator 3 and the low-temperature radiator 4 in parallel.
The method for the high-low temperature parallel operation comprises the following steps: when the engine and the gearbox are cooled, the cooling liquid starts from the water pump, enters the high-temperature radiator and the low-temperature radiator respectively through the cooling water pipe inside the engine, flows out of the radiator after being cooled by the high-temperature radiator and returns to the water pump of the engine through the thermostat; the cooling liquid cooled by the low-temperature radiator flows out of the radiator to reach an inlet-outlet type electric control water valve, the inlet-outlet type electric control water valve controls the flow of the cooling liquid flowing to the gearbox cooler or the electric element according to the cooling requirement [ part of the cooling liquid is connected in parallel to the outlet of the high-temperature radiator and returns to the engine water pump through the thermostat, part of the cooling liquid flows to the gearbox cooler (or the electric element) ], and finally returns to the engine water pump, and the two branches form parallel connection. Meanwhile, heat sharing and rapid warm-up are realized, and the most reasonable utilization of redundant heat among the two devices is realized.
The independent cooling method of the engine comprises the following steps: when only the engine needs to cool the gearbox and no cooling is needed (at this time, a one-in two-out type electric control water valve controls the cooling liquid to only flow to the engine thermostat as shown in fig. 2). The cooling liquid starts from the water pump, enters the high-temperature radiator and the low-temperature radiator respectively through the cooling water pipe in the engine, and returns to the water pump of the engine through the thermostat; the cooling liquid cooled by the low-temperature radiator flows out of the radiator to reach an inlet-outlet type electric control water valve, and is connected to the outlet of the high-temperature radiator in parallel through the inlet-outlet type electric control water valve and returns to the engine water pump through the thermostat.
The method for independently cooling the automatic gearbox or the electrical components comprises the following steps: when cooling only the gearbox or the electronic control unit is required to cool the engine without cooling (at this time the thermostat is in an off state). The cooling liquid starts from the water pump, enters the low-temperature radiator through the cooling water pipe inside the engine, flows out of the radiator after being cooled by the low-temperature radiator to reach the one-inlet two-outlet electric control water valve, reaches the gearbox cooler or the electric appliance element after passing through the one-inlet two-outlet electric control water valve, and finally returns to the engine water pump to form loop circulation.
The method for the internal circulation of the engine comprises the following steps: when the engine and the gearbox or the electric elements do not need to be cooled, the thermostat is in a closed state, the one-inlet two-outlet electric control water valve is in a state shown in fig. 2, the whole waterway is not communicated through in an external circulation mode, and the engine cooling water is in an internal circulation state, so that quick warm-up is ensured.
The invention has the beneficial effects that:
1) A parallel-type vehicle cooling system reasonably utilizes the difference between a front-end module flow field and a temperature field, a high-temperature cooling loop and a low-temperature cooling loop are connected in parallel, and a water pump is shared to achieve the purpose of reducing the cost of the whole vehicle, and meanwhile the purpose of realizing the most reasonable utilization of redundant heat among heat sharing is achieved.
2) An electric control water valve is designed between a high-temperature water path and a low-temperature water path of the parallel cooling system for the vehicle, and the temperature of an engine and the temperature of a gearbox or electric elements are optimally distributed by combining a thermostat.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a block diagram and a parallel operation schematic diagram of the system of the present invention;
FIG. 2 is an engine independent cooling circuit principle of the present invention;
FIG. 3 is a schematic diagram of the independent cooling circuit of the transmission (or electrical component) of the present invention;
fig. 4 shows the internal circulation working principle of the engine.
In the figure, 1 water pump, 2 engine, 3 high temperature radiator, 4 low temperature radiator, 5 one-inlet two-outlet electric control water valve, 6 gearbox cooler or electric appliance element, 7 thermostat, 8 gearbox.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
see fig. 1-4.
The invention discloses a parallel-type vehicle cooling system, which comprises an engine 2, a high-temperature radiator 3, a low-temperature radiator 4, a gearbox cooler 6 and a gearbox or an electric element 8, wherein the gearbox cooler 6 is provided with a circulating cooling water pipe, and the circulating cooling water pipe is arranged in the gearbox or the electric element 8; an engine circulation heat dissipation water channel is arranged in the engine 2, two sides of the engine circulation heat dissipation water channel are respectively provided with a branch pipe, and a high-temperature radiator 3 and a low-temperature radiator 4 are connected in parallel between the two branch pipes; the branch pipe at the communication part of the low-temperature radiator 4 and the engine circulation radiating water channel is provided with a two-inlet and two-outlet type electric control water valve 5, the two-inlet and two-outlet type electric control water valve 5 is communicated with the gearbox cooler 6, and the gearbox cooler 6 is communicated with the engine circulation radiating water channel.
A water pump 1 is arranged in the engine circulation heat dissipation water channel, and the gearbox cooler 6 is communicated with the water pump.
One side of the water pump 1 is connected with a thermostat 7, and the water pump 1 and the thermostat 7 are arranged on a branch pipe connected with the high-temperature radiator 3 and the low-temperature radiator 4 in parallel.
The engine 2 is connected with the high-temperature radiator 3, the low-temperature radiator 4, the high-temperature radiator 3, the thermostat 7, the low-temperature radiator 4, the electric control water valve 5, the gearbox cooler or electric element 6 and the gearbox cooler or electric element 6 are all connected with the engine 2 by rubber hoses, and antifreeze is transmitted through the rubber hoses.
As shown in fig. 1, when both the engine 2 and the gearbox 8 need cooling, the cooling liquid starts from the water pump 1, enters the high-temperature radiator 3 and the low-temperature radiator 4 through cooling water pipes respectively through the inside of the engine 2, flows out of the radiator after being cooled by the high-temperature radiator 3, and returns to the engine water pump 1 through the thermostat 7; the cooling liquid cooled by the low-temperature radiator 4 flows out of the radiator to reach the one-inlet two-outlet electric control water valve 5, the one-inlet two-outlet electric control water valve 5 controls the flow of the cooling liquid flowing to the gearbox cooler (or electric element) 6 according to the cooling requirement [ part of the cooling liquid is connected in parallel to the outlet of the high-temperature radiator 3 and returns to the engine water pump 1 through the thermostat 7, part of the cooling liquid flows to the gearbox cooler (or electric element) 6], and finally returns to the engine water pump 1, and the two branches form parallel connection. Meanwhile, heat sharing and rapid warm-up are realized, and the most reasonable utilization of redundant heat among the two devices is realized.
2) Engine independent cooling
As shown in fig. 2, when only the engine 2 needs to cool the transmission case 8 without cooling (at this time, a one-in two-out electric control water valve controls the flow of cooling liquid only to the engine thermostat as shown in fig. 2). The cooling liquid starts from the water pump 1, enters the high-temperature radiator 3 and the low-temperature radiator 4 through cooling water pipes respectively through the inside of the engine 2, and returns to the engine water pump 1 through the thermostat 7 after being cooled by the high-temperature radiator 3; the cooling liquid cooled by the low-temperature radiator 4 flows out of the radiator to reach the one-inlet two-outlet electric control water valve 5, and is connected to the outlet of the high-temperature radiator (3) in parallel through the one-inlet two-outlet electric control water valve, and returns to the engine water pump 1 through the thermostat (7).
3) Independent cooling of automatic gearboxes (or electrical components)
As shown in fig. 3, when cooling only the transmission case 8 or the electronic control unit is required to cool the engine without cooling (at this time, the thermostat 7 is in a closed state). The cooling liquid starts from the water pump 1, enters the low-temperature radiator 4 through the cooling water pipe through the inside of the engine 2, flows out of the radiator after being cooled by the low-temperature radiator 4 to reach the one-inlet two-outlet electric control water valve (5), reaches the gearbox cooler (or electric appliance element) 6 after passing through the one-inlet two-outlet electric control water valve (5), and finally returns to the engine water pump 1 to form loop circulation.
4) Internal engine cycle
As shown in fig. 4, when the engine 2 and the gearbox 8 or the electrical components do not need to be cooled, the thermostat 7 is in a closed state, the one-inlet two-outlet electric control water valve 5 is in a state of fig. 2, the whole waterway is not communicated, and the engine cooling water is in an internal circulation state, so that quick warm-up is ensured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes or direct or indirect application in the relevant art utilizing the present specification and drawings are included in the scope of the present invention.
Claims (6)
1. The parallel-type vehicle cooling system is characterized by comprising an engine (2), a high-temperature radiator (3), a low-temperature radiator (4), a gearbox cooler (6) and a gearbox (8) or an electric element, wherein the gearbox cooler (6) is provided with a circulating cooling water pipe, and the circulating cooling water pipe is arranged in the gearbox (8) or the electric element; an engine circulation heat dissipation water channel is arranged in the engine (2), two sides of the engine circulation heat dissipation water channel are respectively provided with a branch pipe, and a high-temperature radiator (3) and a low-temperature radiator (4) are connected in parallel between the two branch pipes; a branch pipe at the communication part of the low-temperature radiator (4) and the engine circulation radiating water channel is provided with a two-in and two-out electric control water valve (5), the two-in and two-out electric control water valve (5) is communicated with a gearbox cooler (6), and the gearbox cooler (6) is communicated with the engine circulation radiating water channel; a water pump (1) is arranged in the engine circulation heat dissipation water channel, and the gearbox cooler (6) is communicated with the water pump; one side of the water pump (1) is connected with a thermostat (7), and the water pump (1) and the thermostat (7) are arranged on a branch pipe connected with a high-temperature radiator (3) and a low-temperature radiator (4) in parallel.
2. The method of operating a parallel vehicular cooling system according to claim 1, wherein: the operation method comprises the following cases: high-low temperature parallel operation, independent cooling of the engine, independent cooling of the gearbox (8) or electrical components, and internal circulation of the engine.
3. The method of operating a parallel vehicular cooling system according to claim 1, wherein: the method for the high-low temperature parallel operation comprises the following steps: when the engine (2) and the gearbox (8) or the electric elements are required to be cooled, the cooling liquid starts from the water pump (1), enters the high-temperature radiator (3) and the low-temperature radiator (4) respectively through cooling water pipes in the engine (2), and flows out of the radiator after being cooled by the high-temperature radiator (3) and returns to the engine water pump (1) through the thermostat (7); the cooling liquid cooled by the low-temperature radiator (4) flows out of the radiator to reach an inlet and outlet type electric control water valve (5), the inlet and outlet type electric control water valve (5) controls the flow of the cooling liquid flowing to the gearbox cooler or the electric element (6) according to the cooling requirement, part of the cooling liquid is connected in parallel to the outlet of the high-temperature radiator (3) and returns to the engine water pump (1) through the thermostat (7), part of the cooling liquid flows to the gearbox cooler or the electric element (6) and finally returns to the engine water pump (1), and two branches form parallel connection; meanwhile, heat sharing and rapid warm-up are realized, and the most reasonable utilization of redundant heat among the two devices is realized.
4. The method of operating a parallel vehicular cooling system according to claim 2, wherein: the independent cooling method of the engine comprises the following steps: when only the engine (2) needs to cool the gearbox (8) or electrical components do not need to be cooled; the cooling liquid starts from the water pump (1), enters the high-temperature radiator (3) and the low-temperature radiator (4) respectively through cooling water pipes in the engine (2), and returns to the engine water pump (1) through the thermostat (7) after being cooled by the high-temperature radiator (3); the cooling liquid cooled by the low-temperature radiator (4) flows out of the radiator to reach the one-inlet two-outlet electric control water valve (5), and is connected to the outlet of the high-temperature radiator (3) in parallel through the one-inlet two-outlet electric control water valve and returns to the engine water pump (1) through the thermostat (7).
5. The method of operating a parallel vehicular cooling system according to claim 2, wherein: the method for independently cooling the gearbox (8) or the electrical components comprises the following steps: when the engine is not required to be cooled by cooling only the gearbox (8) or the electrical components, the thermostat (7) is in a closed state; the cooling liquid starts from the water pump (1), enters the low-temperature radiator (4) through the cooling water pipe through the inside of the engine (2), flows out of the radiator after being cooled by the low-temperature radiator (4) to reach the one-inlet two-outlet electric control water valve (5), reaches the gearbox cooler or the electric appliance element (6) after passing through the one-inlet two-outlet electric control water valve (5), and finally returns to the engine water pump (1) to form loop circulation.
6. The method of operating a parallel vehicular cooling system according to claim 2, wherein: the method for the internal circulation of the engine comprises the following steps: when the engine (2) and the gearbox (8) or the electrical components do not need to be cooled, the thermostat (7) is in a closed state, the whole waterway is not communicated in an external circulation mode, and the engine cooling water is in an internal circulation state, so that quick warm-up is guaranteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355897.2A CN110273746B (en) | 2019-04-29 | 2019-04-29 | Parallel type cooling system for vehicle and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355897.2A CN110273746B (en) | 2019-04-29 | 2019-04-29 | Parallel type cooling system for vehicle and operation method thereof |
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| CN110273746A CN110273746A (en) | 2019-09-24 |
| CN110273746B true CN110273746B (en) | 2024-02-02 |
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Families Citing this family (2)
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| CN113931729A (en) * | 2021-09-30 | 2022-01-14 | 东风商用车有限公司 | Heat-dissipating capacity-variable radiator for vehicle, heat-dissipating system and use method of heat-dissipating capacity-variable radiator |
| CN113858916B (en) * | 2021-10-20 | 2023-06-23 | 重庆金康赛力斯新能源汽车设计院有限公司 | Thermal management system and vehicle |
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| CN105134357A (en) * | 2015-08-05 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Cooling system of power assembly |
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| CN110273746A (en) | 2019-09-24 |
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