CN111042891A - Extended-range lubrication management system, lubrication management method and vehicle - Google Patents
Extended-range lubrication management system, lubrication management method and vehicle Download PDFInfo
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- CN111042891A CN111042891A CN201911414890.XA CN201911414890A CN111042891A CN 111042891 A CN111042891 A CN 111042891A CN 201911414890 A CN201911414890 A CN 201911414890A CN 111042891 A CN111042891 A CN 111042891A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—Cooling
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The extended-range lubrication management system comprises an engine lubrication system, an oil-cooled motor module and a controller, wherein the engine lubrication system and the motor module share an oil pan, a pump body, an oil cooler and an oil filter element, a control valve is further arranged in the oil-cooled motor module, the controller is electrically connected with the control valve, and the controller controls the opening of the control valve so that oil can selectively enter the engine lubrication system or the engine lubrication system and the oil-cooled motor module at the same time. Compared with the prior art, the extended-range lubrication management system can reduce the friction work of the oil-cooled electrode module, reduce the number of parts, improve the integration level and reduce the cost.
Description
Technical Field
The invention relates to the field of vehicle power systems, in particular to a range-extended lubrication management system, a lubrication management method and a vehicle.
Background
With increasingly strict fuel consumption and emission regulations in the global automobile industry, the fuel consumption of 25-year-hundred kilometers needs to be 4L, and the target fuel consumption of the year-hundred kilometers needs to be 3.2L, so the development trend of automobiles is necessarily electric and intelligent. And pure electric vehicles face the problems of high vehicle price due to the cost of a battery pack, charging anxiety caused by lack of infrastructure charging facilities and user mileage anxiety. The international major OEM host plant agreed that for a long time the automotive industry was primarily developing in a hybrid mode.
The original four-stroke engine is mostly adopted as a range extender engine in the range-extending electric vehicle in the current market, and the existing range extender assembly has the defects of poor oil consumption and emission of the engine, low integral level of temperature of a cylinder wall of a water-cooled engine and unfavorable heat efficiency improvement; the start and stop of the extended range vehicle are frequent, which is not beneficial to the heat preservation of the engine.
The oil-cooled electrode module can directly contact with all parts in the motor power system due to oil, so that the oil-cooled electrode module has good cooling and lubricating effects on the motor power system. In the prior art, an engine lubricating system and an oil-cooled motor module are mutually independent, and parts of the two systems are relatively more and are not linked, so that the integration level is lower and the cost is higher.
Disclosure of Invention
The invention provides a range-extended lubrication management system, a lubrication management method and a vehicle.
The invention provides an extended-range lubrication management system which comprises an engine lubrication system, an oil-cooled motor module and a controller, wherein the engine lubrication system and the motor module share an oil pan, a pump body, an oil cooler and an oil filter element, the oil-cooled motor module is internally provided with a control valve, the controller is electrically connected with the control valve, and the controller controls the opening of the control valve so that oil can selectively enter the engine lubrication system or the engine lubrication system and the oil-cooled motor module at the same time.
Further, when the temperature of oil in the engine lubricating system is smaller than a first threshold value, the controller controls the control valve to be closed, so that the oil only enters the engine lubricating system; when the temperature of oil in the engine lubricating system is larger than a first threshold value, the controller controls the control valve to be opened, so that the oil simultaneously enters the engine lubricating system and the oil-cooled motor module.
Further, the pump body is electrically connected with the controller, and the controller controls the power of the pump body and the opening of the control valve according to the pressure and the temperature of oil in the engine lubricating system and the oil cooling motor module.
Further, the extended-range lubrication management system further comprises a cooling circulation, the cooling circulation is located on the hot side of the engine lubrication system and the oil-cooled motor module, the controller is electrically connected with the cooling circulation, when the temperature of oil in the oil-cooled motor module is smaller than a second threshold value, the controller controls the cooling circulation not to participate in heat dissipation of the engine lubrication system and the oil in the oil-cooled motor module, and when the temperature of the oil in the oil-cooled motor module is larger than the second threshold value, the controller controls the cooling circulation to dissipate heat of the oil in the engine lubrication system and the oil in the oil-cooled motor module.
Furthermore, a first engine oil pressure and temperature sensor is arranged in the engine lubricating system, a second engine oil pressure and temperature sensor is arranged in the oil cooling motor circulation, the first engine oil pressure and temperature sensor and the second engine oil pressure sensor are electrically connected with the controller, the first engine oil pressure and temperature sensor detects the temperature and pressure of oil in the engine lubricating system and transmits the temperature and pressure information of the oil in the engine lubricating system to the controller, and the second engine oil pressure and temperature sensor detects the temperature and pressure of the oil in the cooling motor module and transmits the temperature and pressure information of the oil in the cooling motor module to the controller.
Furthermore, a first engine oil pressure sensor and a first engine oil temperature sensor are arranged in the engine lubricating system, a second engine oil pressure sensor and a second engine oil temperature sensor are arranged in the oil cooling motor in a circulating way, the first engine oil pressure sensor, the first engine oil temperature sensor, the second engine oil pressure sensor and the second engine oil temperature sensor are electrically connected with the controller, the first engine oil pressure sensor and the first engine oil temperature sensor respectively detect the pressure and the temperature of the oil in the engine lubricating system, and transmits the pressure and temperature information of the oil in the engine lubricating system to the controller, the second engine oil pressure sensor and the second engine oil temperature sensor respectively detect the pressure and the temperature of the oil in the cooling motor module, and transmitting the pressure and temperature information of the oil in the cooling motor module to the controller.
The invention also provides a range-extended lubrication management method based on the range-extended lubrication management system, which comprises the following steps:
detecting the temperature of oil in an engine lubricating system;
when the temperature of oil in the engine lubricating system is smaller than a first threshold value, controlling the oil to only participate in circulation in the engine lubricating system and not participate in circulation in the oil-cooled motor module;
and when the temperature of the oil in the engine lubricating system is greater than the first threshold value, controlling the oil to participate in both the internal circulation of the engine lubricating system and the circulation in the oil-cooled motor module.
Further, the method also comprises the step of detecting the pressure of the oil in the engine lubrication cycle and the oil-cooled motor module to ensure the oil pressure required in the engine lubrication system and the oil-cooled motor module when the oil participates in the internal circulation of the engine lubrication system and the circulation in the oil-cooled motor module.
The method further comprises the steps of detecting the temperature of oil in the oil-cooled motor module, and controlling cooling circulation to dissipate heat of the engine lubricating system and the oil in the oil-cooled motor module when the temperature of the oil in the oil-cooled motor module is larger than a second threshold value.
The invention also provides a vehicle comprising the extended-range lubrication management system.
In summary, in the present invention, the engine lubrication system and the oil-cooled motor module share the oil pan, the pump body, the oil cooler, and the oil filter, so that on one hand, the cost can be reduced through high integration, and on the other hand, the temperature of the oil can be rapidly increased through the engine lubrication system, thereby reducing the friction work of the oil-cooled motor module and reducing the energy consumption.
Further, by sharing one oil cooler for the engine cooling cycle and the engine lubrication cycle with the motor cooling cycle, the heat generated in the engine cooling cycle and the engine lubrication cycle can be dissipated through the radiator in the motor cooling cycle. This can further reduce the number of parts by integration, reducing the cost.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an extended range lubrication management system according to a first embodiment of the present invention.
Fig. 2 is a system block diagram of an extended range lubrication management system according to a first embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
The invention provides a range-extended lubrication management system, a lubrication management method and a vehicle.
Fig. 1 is a schematic structural diagram of an extended range lubrication management system according to a first embodiment of the present invention, and fig. 2 is a system block diagram of the extended range lubrication management system according to the first embodiment of the present invention. As shown in fig. 1 and fig. 2, the extended-range lubrication management system according to the embodiment of the present invention includes an engine lubrication system, an oil-cooled motor module, and a controller 30.
The engine lubrication system comprises an oil pan 11, a pump body 12, an oil cooler 13, an oil filter element 14, a first oil pressure and temperature sensor 15 and an engine lubrication oil channel 16 which are connected in sequence. In the present embodiment, the oil pan 11, the pump body 12, the oil cooler 13, the oil filter 14, the first oil pressure and temperature sensor 15, and the engine lubricating oil passage 16 are sequentially disposed in the counterclockwise direction, that is, the oil cooler 13 is located downstream of the pump body 12, the oil filter 14 is located downstream of the oil cooler 13, the first oil pressure and temperature sensor 15 is located downstream of the oil filter 14, and the engine lubricating oil passage 16 is located downstream of the first oil pressure and temperature sensor 15. Oil pumped by the pump body 12 from the oil pan 11 passes through the oil cooler 13 and the oil filter element 14 and then enters the engine lubricating oil passage 16 to lubricate the engine, and the oil passing through the engine lubricating oil passage 16 flows back to the oil pan 11 again to form a lubricating cycle to lubricate the engine. The first oil pressure temperature sensor 15 detects the oil pressure and temperature of the oil in the engine lubrication system. The first oil pressure and temperature sensor 15 is electrically connected to the controller 30, and the first oil pressure sensor transmits the detected temperature and pressure information of the oil in the engine lubrication system to the controller 30.
In the present embodiment, the temperature and pressure of the hydraulic pressure in the engine lubrication system are detected by the first hydraulic pressure/temperature sensor 15. It is understood that in other embodiments, the engine lubrication system may also be detected by the first engine oil pressure sensor and the first engine oil temperature sensor, i.e. the function of the first engine oil pressure temperature sensor 15 is replaced by the first engine oil pressure sensor and the first engine oil temperature sensor, respectively.
The oil cooling motor module comprises an oil pan 11, a pump body 12, an oil cooler 13, an oil filter element 14, a control valve 21, a second oil pressure and temperature sensor 22 and a motor cooling oil passage 23 which are sequentially connected. In the present embodiment, the oil pan 11, the pump body 12, the oil cooler 13, the oil filter 14, the control valve 21, and the motor cooling oil passage 23 are disposed on one side in the clockwise direction, that is, the oil cooler 13 is located downstream of the pump body 12, the oil filter 14 is located downstream of the oil cooler 13, the control valve 21 is located downstream of the oil filter 14, the second oil pressure temperature sensor 22 is located downstream of the control valve 21, and the motor cooling oil passage 23 is located downstream of the second oil pressure temperature sensor 22. The oil pumped out from the oil pan 11 by the pump body 12 passes through the oil cooler 13, the oil filter element 14 and the control valve 21 and then enters the motor cooling oil duct 23 to lubricate and cool the motor module, and the oil passing through the motor cooling oil duct 23 flows back to the oil pan 11 again to form a circulation for lubricating and cooling the motor module. The second machine oil pressure and temperature sensor 22 and the control valve 21 are electrically connected with the controller 30, the second machine oil pressure and temperature sensor 22 detects the pressure and temperature of the oil in the oil-cooled motor module and transmits the pressure and temperature information to the controller 30, and the controller 30 controls the amount of the oil entering the oil-cooled motor module through the opening of the control valve 21.
In the present embodiment, the temperature and the pressure of the oil in the oil-cooled motor module are detected by the second oil pressure and temperature sensor 22. It is understood that instead of the second oil pressure temperature sensor 22, a second oil pressure sensor and a second oil temperature sensor may be used to detect the pressure and temperature of the oil, respectively.
As can be seen from the above description, in the present embodiment, the engine lubrication system and the oil-cooled motor module share one set of the oil pan 11, the pump body 12, the oil cooler 13, and the oil filter 14, and the amount of oil entering the oil-cooled motor module is controlled by the control valve 21. That is, with the control valve 21 closed, the oil pumped from the oil pan 11 by the pump body 12 passes through the oil cooler 13 and the oil filter 14, enters only the engine oil passage 16, and then returns to the oil pan 11; when the control valve 21 is opened, the oil pumped out from the pump body 12 passes through the oil cooler 13 and the oil filter, and then a part of the oil enters the engine oil passage 16, and the other part of the oil enters the motor cooling oil passage 23 through the control valve 21.
Further, in this embodiment, the controller is further electrically connected to the pump body 12, and the controller controls the power of the pump body 12 and the opening of the control valve 21 according to the temperature and the pressure of the oil in the engine lubrication system and the oil-cooled motor module, so that the oil pressure of the oil entering the engine lubrication system and the oil-cooled motor module meets the respective requirements.
Further, the extended-range lubrication management system further includes a cooling cycle 40, the engine lubrication system and the oil-cooled motor module both pass through the hot side of the oil cooler 13, and the cooling cycle 40 passes through the cold side of the oil cooler 13. The controller 30 is electrically connected to the cooling circuit 40 and controls the cooling circuit 40 to remove heat from the engine lubrication system and the oil-cooled motor module.
In this embodiment, when the temperature of the oil in the engine lubrication system is less than or equal to the first threshold, the controller 30 controls the control valve 21 to close, so that the oil does not enter the oil-cooled motor module, and at the same time, the cooling cycle 40 does not work, and the oil only passes through the engine lubrication system and does not dissipate heat, so that the temperature of the oil can be rapidly increased; when the temperature of the oil in the engine lubrication system is greater than the first threshold and less than or equal to the second threshold, the controller 30 controls the control valve 21 to be opened, but the cooling cycle 40 is not operated. Because the temperature of fluid is higher this moment, get into the oil cooling motor module after, can cool down fluid through oil cooling motor module on the one hand, on the other hand, the fluid of higher temperature can reduce the friction work of oil cooling motor module, is favorable to reducing energy resource consumption.
When the temperature of the oil in the oil-cooled motor module is higher than the second threshold value along with the increase of the temperature, the controller 30 controls the cooling cycle 40 to start working under the condition that the control valve 21 is kept open, and the cooling cycle 40 radiates the heat in the oil from the cold side of the oil cooler 13.
Further, the controller 30 adjusts the power of the pump body 12 and the opening of the control valve 21 according to the pressure and temperature of the oil in the engine lubrication system and the oil-cooled motor module, so as to ensure that the oil pressure in the engine lubrication system and the oil-cooled motor module meets the requirement.
In summary, in the present invention, the engine lubrication system and the oil-cooled motor module share the oil pan 11, the pump body 12, the oil cooler 13, and the oil filter 14, so that on one hand, the cost can be reduced through high integration, and on the other hand, the temperature of the oil can be rapidly increased through the engine lubrication system, the friction work of the oil-cooled motor module can be reduced, and the energy consumption can be reduced.
The invention also provides a lubrication management method based on the extended range lubrication management system, which comprises the following steps:
detecting the temperature of oil in an engine lubricating system;
when the temperature of oil in the engine lubricating system is smaller than or equal to a first threshold value, controlling the oil to only participate in the circulation in the engine lubricating system and not participate in the circulation in the oil-cooled motor module;
when the temperature of oil in the engine lubricating system is larger than a first threshold value, the oil is controlled to participate in circulation in the engine lubricating system and also participate in circulation in the oil-cooled motor module.
Further, when the oil participates in both the engine lubrication system and the circulation of the oil-cooled motor module, the method further comprises the step of detecting the pressure of the oil in the engine lubrication system and the oil-cooled motor module, and ensuring the pressure of the oil required in the engine lubrication system and the oil-cooled motor module.
Further, when the temperature of the oil in the oil-cooled motor module is greater than the second threshold value, the cooling cycle 40 is controlled to dissipate heat of the engine lubrication system and the oil in the oil-cooled motor module.
The present invention also provides a vehicle including the above extended range lubrication system, and please refer to the prior art for other technical features of the vehicle, which will not be described herein again.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An extended range lubrication management system, comprising: the engine lubricating system and the motor module share an oil pan, a pump body, an engine oil cooler and an engine oil filter core, a control valve is further arranged in the oil cooling motor module, the controller is electrically connected with the control valve, and the controller controls the opening of the control valve so that oil can selectively enter the engine lubricating system or the engine lubricating system and the oil cooling motor module simultaneously.
2. The extended range lubrication management system of claim 1, wherein: when the temperature of oil in the engine lubricating system is smaller than a first threshold value, the controller controls the control valve to be closed, so that the oil only enters the engine lubricating system; when the temperature of oil in the engine lubricating system is larger than a first threshold value, the controller controls the control valve to be opened, so that the oil simultaneously enters the engine lubricating system and the oil-cooled motor module.
3. The extended range lubrication management system of claim 2, wherein: the pump body with the controller electrical property links to each other, the controller is according to the engine lubrication system reaches pressure and the temperature of fluid in the oil-cooled motor module, control the power of pump body and the aperture of control valve.
4. The extended range lubrication management system of claim 3, wherein: the extended-range lubrication management system further comprises a cooling circulation, the cooling circulation is located on the hot side of the engine lubrication system and the oil-cooled motor module, the controller is electrically connected with the cooling circulation, when the temperature of oil in the oil-cooled motor module is smaller than a second threshold value, the controller controls the cooling circulation to not participate in heat dissipation of the engine lubrication system and the oil in the oil-cooled motor module, and when the temperature of the oil in the oil-cooled motor module is larger than the second threshold value, the controller controls the cooling circulation to dissipate heat of the engine lubrication system and the oil in the oil-cooled motor module.
5. The extended range lubrication management system of claim 4, wherein: the engine lubrication system is internally provided with a first engine oil pressure and temperature sensor, the oil-cooled motor is internally provided with a second engine oil pressure and temperature sensor in circulation, the first engine oil pressure and temperature sensor and the second engine oil pressure and temperature sensor are electrically connected with the controller, the first engine oil pressure and temperature sensor detects the temperature and pressure of oil in the engine lubrication system and transmits the temperature and pressure information of the oil in the engine lubrication system to the controller, and the second engine oil pressure and temperature sensor detects the temperature and pressure of the oil in the cooling motor module and transmits the temperature and pressure information of the oil in the cooling motor module to the controller.
6. The extended range lubrication management system of claim 4, wherein: a first engine oil pressure sensor and a first engine oil temperature sensor are arranged in the engine lubricating system, a second engine oil pressure sensor and a second engine oil temperature sensor are arranged in the oil cooling motor in a circulating way, the first engine oil pressure sensor, the first engine oil temperature sensor, the second engine oil pressure sensor and the second engine oil temperature sensor are electrically connected with the controller, the first engine oil pressure sensor and the first engine oil temperature sensor respectively detect the pressure and the temperature of the oil in the engine lubricating system, and transmits the pressure and temperature information of the oil in the engine lubricating system to the controller, the second engine oil pressure sensor and the second engine oil temperature sensor respectively detect the pressure and the temperature of the oil in the cooling motor module, and transmitting the pressure and temperature information of the oil in the cooling motor module to the controller.
7. A range-extended lubrication management method based on the range-extended lubrication management system according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
detecting the temperature of oil in an engine lubricating system;
when the temperature of oil in the engine lubricating system is smaller than a first threshold value, controlling the oil to only participate in circulation in the engine lubricating system and not participate in circulation in the oil-cooled motor module;
and when the temperature of the oil in the engine lubricating system is greater than the first threshold value, controlling the oil to participate in both the internal circulation of the engine lubricating system and the circulation in the oil-cooled motor module.
8. The extended range lubrication management method of claim 7, wherein: the method further comprises the step of detecting the pressure of the oil in the engine lubricating system and the oil-cooled motor module to ensure the pressure of the oil required in the engine lubricating system and the oil-cooled motor module when the oil participates in the internal circulation of the engine lubricating system and the circulation in the oil-cooled motor module.
9. The extended range lubrication management method of claim 7, wherein: the method further comprises the steps of detecting the temperature of oil in the oil-cooled motor module, and controlling cooling circulation to dissipate heat of the engine lubricating system and the oil in the oil-cooled motor module when the temperature of the oil in the oil-cooled motor module is larger than a second threshold value.
10. A vehicle, characterized in that: the vehicle comprising the extended range lubrication management system of any one of claims 1 to 7.
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| CN201911414890.XA CN111042891B (en) | 2019-12-31 | 2019-12-31 | Extended-range lubrication management system, lubrication management method and vehicle |
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| CN201911414890.XA CN111042891B (en) | 2019-12-31 | 2019-12-31 | Extended-range lubrication management system, lubrication management method and vehicle |
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| CN112172549A (en) * | 2020-10-12 | 2021-01-05 | 上海电气集团股份有限公司 | Range-extending motor driving system and vehicle |
| CN112922692A (en) * | 2021-02-03 | 2021-06-08 | 南昌济铃新能源科技有限责任公司 | Lubricating system of range extender engine and control method thereof |
| CN113847140A (en) * | 2021-09-08 | 2021-12-28 | 东风汽车集团股份有限公司 | Range extender lubricating and cooling system, hybrid electric vehicle and control method |
| CN114856750A (en) * | 2022-04-24 | 2022-08-05 | 东风汽车集团股份有限公司 | Calibration method, control method, device, electronic equipment and storage medium |
| DE102022212415A1 (en) | 2022-11-21 | 2024-05-23 | Magna powertrain gmbh & co kg | Cooling system for cooling an electrical machine |
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