CN112018957A - Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle - Google Patents
Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle Download PDFInfo
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- CN112018957A CN112018957A CN201910466671.XA CN201910466671A CN112018957A CN 112018957 A CN112018957 A CN 112018957A CN 201910466671 A CN201910466671 A CN 201910466671A CN 112018957 A CN112018957 A CN 112018957A
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- motor
- electric vehicle
- wheeled electric
- cooling device
- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a two-wheeled electric vehicle motor cooling system and a two-wheeled electric vehicle, which comprise a cooling device, a controller and a temperature detection element, wherein the cooling device is used for being connected with a motor of the two-wheeled electric vehicle and cooling the motor, the temperature detection element is used for being connected with the motor and detecting the temperature of the motor, the controller is connected with the temperature detection element and the cooling device, and when the temperature detection element detects that the temperature of the motor is higher than a first preset temperature value, the controller controls the cooling device to be started. The motor cooling system of the two-wheeled electric vehicle provided by the invention can better reduce energy consumption and save electricity while ensuring better motor cooling effect.
Description
Technical Field
The invention belongs to the technical field of plant irrigation, and particularly relates to a two-wheeled electric vehicle motor cooling system and a two-wheeled electric vehicle.
Background
In recent years, due to the rising environmental awareness, it is demanded to reduce fuel consumption of automobiles, motorcycles, and the like more than ever before, considering that petroleum resources will be exhausted in the future. On the other hand, a secondary battery represented by a lithium ion battery has been remarkably developed, and electric motorcycles are more and more preferred. Generally, the energy efficiency of an electric motor is considerably higher than that of an internal combustion engine, but heat may be generated in accordance with the operation of the electric motor. As a typical heat generation, the coil generates heat (so-called copper loss) due to the energization resistance of the coil, and therefore, the coil temperature rises to increase the resistance of the coil and lower the efficiency, and further heat is generated, the temperature rises to increase the resistance, and the motor output is prevented from being improved due to a vicious circle.
The existing cooling circulation system starts to work as soon as the motor is started, but the temperature of the motor does not need to be cooled many times, which causes unnecessary energy waste.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a two-wheeled electric vehicle motor cooling system with lower energy consumption and a two-wheeled electric vehicle.
The invention provides a motor cooling system of a two-wheeled electric vehicle, which comprises a cooling device, a controller and a temperature detection element, wherein the cooling device is used for being connected with a motor of the two-wheeled electric vehicle and cooling the motor, the temperature detection element is used for being connected with the motor and detecting the temperature of the motor, the controller is connected with the temperature detection element and the cooling device, and when the temperature detection element detects that the temperature of the motor is higher than a first preset temperature value, the controller controls the cooling device to be started.
Preferably, the first preset temperature value is 30-55 ℃.
Preferably, when the temperature detection element detects that the temperature of the motor is higher than a second preset temperature value, the output power of the cooling device is increased, the second preset temperature value is higher than or equal to the first preset temperature value, and preferably, the second preset temperature value is 40-60 ℃.
Preferably, when the temperature detecting element detects that the temperature of the motor is less than a third preset temperature value, the cooling device is turned off, and the third preset temperature value is less than or equal to the first preset temperature value. Preferably, the third preset temperature value is 30-45 DEG C
Preferably, the motor cooling system of the two-wheeled electric vehicle further comprises an integral controller, the controller transmits the acquired signal of the temperature detection element to the integral controller, a first preset time range value and a fourth preset temperature value are preset in the integral controller, the fourth preset temperature value is greater than or equal to the first preset temperature value, and when the motor temperature received by the integral controller is continuously greater than the fourth preset temperature value within the first preset time range value, the integral controller controls the two-wheeled electric vehicle to send a fault early warning or the integral controller controls the motor to be turned off.
Preferably, the fourth preset temperature value is 50-60 ℃.
Preferably, the cooling device comprises a water tank and a water pump, wherein a water inlet of the water tank is connected with a water outlet of the motor, and the water pump is respectively connected with the water outlet of the water tank and the water inlet of the motor.
Preferably, the system further comprises a water flow sensor and a vehicle control unit, wherein the water flow sensor is arranged at a water inlet of the motor and/or a water outlet of the motor and feeds detected water flow information back to the vehicle control unit, and when the cooling device is in an on state, the water flow of the water inlet of the motor and/or the water outlet of the motor is lower than a preset value, or when the cooling device is in an off state, the flow of the water inlet of the motor and/or the water outlet of the motor is higher than the preset value, the vehicle control unit sends a fault early warning instruction to the two-wheeled electric vehicle.
The invention also provides a two-wheeled electric vehicle which comprises a vehicle body, wheels and a motor, wherein the wheels are arranged on the vehicle body, the motor is connected with the wheels and drives the wheels to rotate, the two-wheeled electric vehicle further comprises a controller, a temperature detection element and a cooling device, the cooling device is connected with the motor and used for cooling the motor, the temperature detection element is connected with the motor and used for detecting the temperature of the motor, the controller is connected with the temperature detection element and the cooling device, and when the temperature detection element detects that the temperature of the motor is higher than a first preset temperature value, the controller controls the cooling device to be started.
Preferably, the cooling device comprises a water tank, a water pump and a cooling pipeline, the cooling pipeline is connected with the motor, and the water tank, the water pump and the cooling pipeline are communicated in a circulating mode.
The two-wheeled electric vehicle motor cooling system and the two-wheeled electric vehicle provided by the invention can better reduce energy consumption and save electricity while ensuring better motor cooling effect.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic view of a motor cooling system of a two-wheeled electric vehicle according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a motor cooling system of a two-wheeled electric vehicle according to embodiment 2 of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 1-2, the embodiment of the present invention provides a cooling system for a motor 5 of a two-wheeled electric vehicle, which is characterized in that a cooling device 3 connected to the motor 5 and a temperature detecting element 1 for detecting the temperature of the motor 5 are disposed on the motor 5, and the cooling device 3 is used for cooling the motor 5. Temperature detecting element 1 feeds back the 5 temperature of motor that detect to controller 2, and controller 2 is used for gathering temperature detecting element 1's signal, presets in controller 2 to be less than and predetermines the temperature, and when controller 2 received 5 temperatures of motor that temperature detecting element 1 detected and is greater than first temperature value of predetermineeing, controller 2 sent the instruction to cooling device 3 and opens cooling device 3. The cooling device 3 in the present embodiment is preferably a cooling water circulation device, but may be another device capable of cooling the motor 5.
Different from the traditional two-wheeled electric vehicle, the cooling device 3 in the embodiment does not start to work when the motor 5 works, but starts to work when the temperature of the motor 5 is detected to be higher than a first preset temperature value, so that the output of electric quantity can be effectively reduced, the endurance mileage is increased, the working time of the cooling device 3 is shortened, and the service life of the cooling device 3 is prolonged.
The motor 5 generates heat during operation, but the heat generated when the motor 5 is started is very small, which does not affect the motor 5, and usually the motor 5 generates a high temperature after operating for a period of time, which affects the operation of the motor 5. Therefore, the cooling system in this embodiment is turned on when the temperature of the motor 5 is detected to be high. In a preferred embodiment, the first predetermined temperature value is in the range of 30 ℃ to 55 ℃. In a further preferred embodiment the first predetermined temperature value is in the range of 40 c to 50 c, most preferably 45 c.
Referring to fig. 1, in a preferred embodiment, a second preset temperature value is pre-stored in the controller 2, and the second preset temperature value is greater than or equal to the first preset temperature value, for example, when the first preset temperature value is 45 ℃, the second preset temperature value should be greater than or equal to 45 ℃. When the temperature of the motor 5 collected by the controller 2 is higher than the second preset temperature value, it indicates that the temperature of the motor 5 is too high and the temperature needs to be lowered urgently, and at the moment, the controller 2 sends an instruction to the cooling device 3 to increase the output power of the cooling device 3. In this embodiment, the output power of the normal operation of the cooling device 3 is the first output power, and the increased output power is the second output power. When the temperature of the motor 5 is lower than the second preset temperature value again, the output power of the cooling device 3 is reduced from the second output power to the first output power. In a further preferred embodiment, the second preset temperature value is in the range of 40 ℃ to 60 ℃, further preferred 45-DEG C to 55 ℃. For example, when the cooling device 3 is a water circulation device, the controller 2 controls the operating speed of the water pump 32 to be increased, so that the temperature can be rapidly reduced when the temperature of the motor 5 is high.
Referring to fig. 1, in a preferred embodiment, a third preset temperature value is prestored in the controller 2, where the third preset temperature value is smaller than or equal to the first preset temperature value, and when the temperature of the motor 5 detected and collected by the controller 2 is smaller than the third preset temperature value, it indicates that the temperature of the motor 5 is low, and it is not necessary to cool down, and at this time, the controller 2 sends an instruction to the cooling device 3 to close the cooling device 3. The energy consumption can be reduced, and the electricity consumption of the electric vehicle is saved. In a further preferred embodiment, the third preset temperature value is 30 ℃ -45 ℃, preferably, the third preset temperature value is 40 ℃.
Referring to fig. 1, in a preferred embodiment, the cooling system of the motor 5 of the two-wheeled electric vehicle further includes an integrated controller, the controller 2 transmits the collected signal of the temperature detecting element 1 to the vehicle control unit 4, a first preset time range value and a fourth preset temperature value are preset in the vehicle control unit 4, the fourth preset temperature value is greater than the first preset temperature value, in a further preferred embodiment, the fourth preset temperature value is 50 ℃ to 60 ℃, and the first preset range value is 30 minutes to 120 minutes. When the temperature of the motor 5 received by the vehicle control unit 4 is continuously greater than the fourth preset temperature value within the first preset time range value, it indicates that the temperature of the motor 5 is too high, the cooling device 3 cannot cool down, or the cooling device 3 fails, and the vehicle control unit 4 controls the electric vehicle to send out a failure early warning or controls the vehicle control unit 4 to turn off the motor 5. Avoid the motor 5 to work at high temperature and damage or cause danger.
Referring to fig. 2, in the preferred embodiment, the cooling device 3 includes a water tank 31 and a water pump 32, a water inlet 311 of the water tank is connected to a water outlet 52 of the motor, and the water pump 32 is connected to a water outlet 312 of the water tank and a water inlet 51 of the motor, respectively. The cooling water enters the water tank 31 from the water filling port 131 of the water tank 31 and circulates in the water tank 31. The cooling water enters the motor 5 from the water inlet of the motor 5 through the water pump 32 from the water outlet 312 of the water tank, cools the motor 5, and then enters the water tank 31 from the water outlet 52 of the motor and the water inlet of the water tank 31, so that the cooling effect on the motor 5 is realized.
Referring to fig. 2, in a preferred embodiment, the cooling system of the motor 5 of the two-wheeled electric vehicle further includes a water flow sensor and a vehicle control unit 4, the water flow sensor is disposed at a water inlet 51 of the motor and/or a water outlet 52 of the motor, and feeds back detected water flow information to the vehicle control unit 4, when the cooling device 3 is turned on, a certain water flow should exist at the water inlet 51 and the water outlet of the motor, a range value of the water flow is preset in the vehicle control unit 4, when the cooling device 3 is in an on state, if the water flow at the water inlet of the motor 5 and/or the water outlet 52 of the motor is lower than a preset value, it is indicated that the device has a fault, and the motor 5 cannot be cooled well, and at this time, the vehicle control unit 4 sends a fault early warning instruction to the. Or when the cooling device 3 is in a closed state and the flow of the water inlet of the motor 5 and/or the water outlet 52 of the motor is higher than a preset value, it is indicated that the cooling device 3 still works after being closed and a fault may occur, and at this time, the vehicle control unit 4 sends a fault early warning instruction to the two-wheeled electric vehicle, so that the vehicle body sends an alarm to remind a driver.
The invention also provides a two-wheeled electric vehicle which comprises a vehicle body, wheels and a motor 5, wherein the wheels are arranged on the vehicle body, the motor 5 is connected with the wheels and drives the wheels to rotate, the two-wheeled electric vehicle also comprises a controller 2, a temperature detection element 1 and a cooling device 3, the cooling device 3 is connected with the motor 5 and used for cooling the motor 5, the temperature detection element 1 is connected with the motor 5 and used for detecting the temperature of the motor 5, the controller 2 is connected with the temperature detection element 1 and the cooling device 3, and when the temperature detection element 1 detects that the temperature of the motor 5 is higher than a first preset temperature value, the controller 2 controls the cooling device 3 to be started.
In the preferred embodiment, the cooling device 3 includes a water tank 31, a water pump 32, and a cooling duct connected to the motor 5, the water tank 31, the water pump 32, and the cooling duct being in circulating communication.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a two-wheeled electric motor car motor cooling system, its characterized in that includes cooling device, controller and temperature detection component, cooling device is used for being connected with the motor of two-wheeled electric motor car, does the motor cooling, temperature detection component be used for with the motor is connected, detects the temperature of motor, the controller with temperature detection component and cooling device connect, work as when temperature detection component detects the motor temperature and is greater than first preset temperature value, the controller control cooling device opens.
2. The two-wheeled electric vehicle motor cooling system of claim 1, wherein the first predetermined temperature value is between 30 ℃ and 55 ℃.
3. The two-wheeled electric vehicle motor cooling system of claim 1, wherein the output power of the cooling device is increased when the temperature detecting element detects that the motor temperature is greater than a second predetermined temperature value, the second predetermined temperature value being greater than or equal to the first predetermined temperature value, preferably the second predetermined temperature value being 40 ℃ -60 ℃.
4. The two-wheeled electric vehicle motor cooling system of claim 1, wherein said cooling device is turned off when said temperature detecting element detects that the motor temperature is less than a third predetermined temperature value, said third predetermined temperature value being less than or equal to said first predetermined temperature value. Preferably, the third preset temperature value is 30 ℃ -45 ℃.
5. The two-wheeled electric vehicle motor cooling system of claim 1, further comprising an integrated controller, wherein the controller transmits the signal collected by the temperature detection element to the integrated controller, a first preset time range value and a fourth preset temperature value are preset in the integrated controller, the fourth preset temperature value is greater than or equal to the first preset temperature value, and when the motor temperature received by the integrated controller is continuously greater than the fourth preset temperature value within the first preset time range value, the integrated controller controls the two-wheeled electric vehicle to issue a failure warning or the integrated controller controls the motor to be turned off.
6. The two-wheeled electric vehicle motor cooling system of claim 5, wherein the fourth predetermined temperature value is between 50 ℃ and 60 ℃.
7. The two-wheeled electric vehicle motor cooling system of claim 1, wherein the cooling means includes a water tank and a water pump, a water inlet of the water tank being connected to a water outlet of the motor, the water pump being connected to the water outlet of the water tank and the water inlet of the motor, respectively.
8. The motor cooling system for two-wheeled electric vehicle of claim 7, further comprising a water flow sensor and a vehicle control unit, wherein the water flow sensor is disposed at a water inlet of the motor and/or a water outlet of the motor, and feeds back detected water flow information to the vehicle control unit, and when the cooling device is in an on state, the water flow of the water inlet of the motor and/or the water outlet of the motor is lower than a preset value, or when the cooling device is in an off state, the water flow of the water inlet of the motor and/or the water outlet of the motor is higher than a preset value, the vehicle control unit sends a fault warning command to the two-wheeled electric vehicle.
9. The utility model provides a two-wheeled electric vehicle, its includes automobile body, wheel and motor, the wheel is installed on the automobile body, the motor with wheel connection, drive the wheel rotates, its characterized in that, two-wheeled electric vehicle still includes controller, temperature detection element and cooling device, cooling device with the motor is connected, is used for doing the motor cooling, temperature detection element with the motor is connected for detect the temperature of motor, the controller with temperature detection element and cooling device are connected, work as when temperature detection element detects the motor temperature and is greater than first predetermined temperature value, the controller control cooling device opens.
10. A two-wheeled electric vehicle as set forth in claim 1, wherein said cooling means includes a water tank, a water pump and a cooling duct, said cooling duct being connected to said electric motor, said water tank, water pump and cooling duct being in circulating communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466671.XA CN112018957A (en) | 2019-05-31 | 2019-05-31 | Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466671.XA CN112018957A (en) | 2019-05-31 | 2019-05-31 | Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle |
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| CN112018957A true CN112018957A (en) | 2020-12-01 |
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| CN201910466671.XA Pending CN112018957A (en) | 2019-05-31 | 2019-05-31 | Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114043841A (en) * | 2021-11-12 | 2022-02-15 | 上汽通用五菱汽车股份有限公司 | Automobile thermal management method and device and computer readable storage medium |
| CN114623084A (en) * | 2021-02-23 | 2022-06-14 | 长城汽车股份有限公司 | Over-temperature protection method and device, storage medium and electronic equipment |
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| CN107487176A (en) * | 2016-10-18 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electromotor cooling system, control method, device and electric automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114623084A (en) * | 2021-02-23 | 2022-06-14 | 长城汽车股份有限公司 | Over-temperature protection method and device, storage medium and electronic equipment |
| CN114623084B (en) * | 2021-02-23 | 2024-11-01 | 长城汽车股份有限公司 | Over-temperature protection method and device, storage medium and electronic equipment |
| CN114043841A (en) * | 2021-11-12 | 2022-02-15 | 上汽通用五菱汽车股份有限公司 | Automobile thermal management method and device and computer readable storage medium |
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Application publication date: 20201201 |