CN116557327A - Charging and distribution system assembly cooling fan control method, device and terminal - Google Patents
Charging and distribution system assembly cooling fan control method, device and terminal Download PDFInfo
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- CN116557327A CN116557327A CN202310565957.XA CN202310565957A CN116557327A CN 116557327 A CN116557327 A CN 116557327A CN 202310565957 A CN202310565957 A CN 202310565957A CN 116557327 A CN116557327 A CN 116557327A
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- 238000001816 cooling Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000036760 body temperature Effects 0.000 claims abstract description 101
- 238000011217 control strategy Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
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- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
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- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control method, a device and a terminal of a cooling fan of a charging and distribution system assembly, belonging to the technical field of cooling systems of vehicles, comprising the following steps: the method comprises the steps of respectively obtaining the maximum current of hardware and the current body temperature of a vehicle-mounted charger, and the rated current and the current body temperature of a power converter; executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum current of the hardware of the vehicle-mounted charger; executing a control strategy of working current of the power converter on the cooling fan according to rated current of the power converter; and executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter. According to the invention, whether the cooling fan is started or stopped is judged by detecting the current and the temperature, so that the overheat risk of the charging and distribution system assembly is avoided, the working temperature of the charging and distribution system assembly is ensured not to be too high, and the service life and the efficiency are improved.
Description
Technical Field
The invention discloses a control method, a device and a terminal of a cooling fan of a charging and distribution system assembly, and belongs to the technical field of cooling systems of vehicles.
Background
The A0-level new energy vehicle type high-voltage charging and distributing system assembly adopts an air cooling mode, namely a cooling fan, and circulation of air around the high-voltage charging and distributing system assembly is accelerated through the cooling fan, so that heat emitted from the inside of the high-voltage charging and distributing system assembly is transmitted to the outside of an automobile through air as a medium, the high-voltage charging and distributing system assembly is in a low-temperature environment, and service life and service efficiency of the high-voltage charging and distributing system assembly are guaranteed.
The heat radiation fan has the advantages of stable performance, high safety coefficient, low cost, simple installation, low energy consumption and the like, but for the control method of the heat radiation fan, most of fan control at present adopts temperature detection to judge whether to start the fan, and the defect is that the risk that the temperature is too high and can not be detected in time due to high current exists, the operation efficiency is influenced due to overheat, the insulation is influenced, and even a charging and power distribution system assembly is damaged, so that the whole vehicle cannot work normally.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method, a device and a terminal for controlling a cooling fan of a charging and distributing system assembly, and solves the problems that the operation efficiency is affected, insulation is affected and the charging and distributing system assembly is damaged due to the fact that the excessive temperature cannot be detected in time due to high current exists in most of fan control at present, and the whole vehicle cannot work normally.
The technical scheme of the invention is as follows:
according to a first aspect of an embodiment of the present invention, there is provided a method for controlling a cooling fan of a charging and distribution system assembly, including:
the method comprises the steps of respectively obtaining the maximum current of hardware and the current body temperature of a vehicle-mounted charger, and the rated current and the current body temperature of a power converter;
executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum current of the hardware of the vehicle-mounted charger;
executing a control strategy of working current of the power converter on the cooling fan according to rated current of the power converter;
and executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter.
Preferably, the executing the control strategy of the working current of the vehicle-mounted charger to the cooling fan according to the maximum hardware current of the vehicle-mounted charger includes:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 A second OBC operating current threshold;
judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, the fan is started, and the fan is closed until the maximum current of the hardware of the vehicle-mounted charger is less than or equal to the second OBC working current threshold value;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the executing a power converter operating current versus radiator fan control strategy according to the rated current of the power converter includes:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein l D For rated current, k, of the power converter 4 Operating current value for power converter
Threshold, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, turning on the fan until rated current of the power converter is less than the working current threshold of the power converter, and turning off the fan;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the executing the control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter includes:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
According to a second aspect of the embodiment of the present invention, there is provided a cooling fan control device for a charging and power distribution system assembly, including:
the acquisition module is used for respectively acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter;
the first judgment strategy module is used for executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum hardware current of the vehicle-mounted charger;
the second judgment strategy module is used for executing a strategy of controlling the cooling fan by the working current of the power converter according to the rated current of the power converter;
and the third judgment strategy module is used for executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter.
Preferably, the first judgment policy module is configured to:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 A second OBC operating current threshold;
judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, turning on the fan until the rated current of the power converter is less than or equal to the second OBC working current threshold value, and turning off the fan;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the second judgment policy module is configured to:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein, the liquid crystal display device comprises a liquid crystal display device,l D for rated current, k, of the power converter 4 For the threshold value of the working current value of the power converter, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, the fan is started, and the fan is closed until the maximum current of hardware of the vehicle-mounted charger is less than the working current threshold of the power converter;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the third judgment policy module is configured to:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
According to a third aspect of an embodiment of the present invention, there is provided a terminal including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method according to the first aspect of the embodiment of the invention is performed.
According to a fourth aspect of embodiments of the present invention, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a terminal, enables the terminal to perform the method according to the first aspect of embodiments of the present invention.
According to a fifth aspect of embodiments of the present invention, there is provided an application program product for causing a terminal to carry out the method according to the first aspect of embodiments of the present invention when the application program product is run at the terminal.
The invention has the beneficial effects that:
the invention provides a control method, a device and a terminal for a cooling fan of a charging and distribution system assembly, which are used for judging whether to start or stop the cooling fan by detecting current and temperature, so that the overheat risk of the charging and distribution system assembly is avoided, the working temperature of the charging and distribution system assembly is ensured not to be too high, and the service life and the efficiency are improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
FIG. 1 is a flow chart illustrating a method of controlling a radiator fan of a charging and distribution system assembly according to an exemplary embodiment;
FIG. 2 is a schematic block diagram of a charging and power distribution system assembly radiator fan control apparatus according to an exemplary embodiment;
fig. 3 is a schematic block diagram of a terminal structure according to an exemplary embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the invention provides a control method of a cooling fan of a charging and distribution system assembly, which is realized by a terminal, wherein the terminal at least comprises a CPU (Central processing Unit) and the like.
Example 1
Fig. 1 is a flowchart illustrating a method for controlling a cooling fan of a charging and power distribution system assembly, which is used in a terminal, according to an exemplary embodiment, the method comprising the steps of:
and step 101, respectively obtaining the maximum current and the current body temperature of the hardware of the vehicle-mounted charger, and the rated current and the current body temperature of the power converter.
Step 102, executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum current of the hardware of the vehicle-mounted charger, wherein the control strategy comprises the following specific contents:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 For a second OBC operating current threshold；
Judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, the fan is started, and the fan is closed until the maximum current of the hardware of the vehicle-mounted charger is less than or equal to the second OBC working current threshold value;
and if not, executing the control strategy of the current body temperature on the cooling fan.
The above K 1 And K 2 Different numerical values are selected according to different vehicle types, and specific examples are as follows:
the maximum power of the vehicle-mounted charger is 2.3kW, and K is obtained through theoretical calculation and multiple simulation tests 1 =0.5, the voltage platform is 115V, the maximum current of the vehicle-mounted charger is 20A, then I s1 =20x0.5=10a, i.e. when the operating current of the vehicle-mounted charger is not less than 10A, the fan is turned on; according to formula I s2 =maximum current of hardware K 2 After theoretical calculation and multiple simulation tests, K2=0.4 is obtained, I is s2 =20x0.4=8a, i.e. the fan is turned off when the operating current of the vehicle-mounted charger is less than or equal to 8A.
Step 103, executing a control strategy of the working current of the power converter on the cooling fan according to the rated current of the power converter, wherein the specific contents are as follows:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein l D For rated current, k, of the power converter 4 For the threshold value of the working current value of the power converter, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, turning on the fan until rated current of the power converter is less than the working current threshold of the power converter, and turning off the fan;
and if not, executing the control strategy of the current body temperature on the cooling fan.
The above K 4 Different numerical values are selected according to different vehicle types, and specific examples are as follows:
the rated working current of the power converter is 75A, and K4 = 0.8 is obtained through theoretical calculation and multiple simulation tests, if Iset = 75 x 0.8 = 60A, namely, when the working current of the power converter is more than or equal to 60A, a fan is started; the fan is turned off when the DCDC operating current is < 60A.
Step 104, executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter, wherein the specific contents are as follows:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
The temperature threshold is 55 xK 3 ，K 3 Different numerical values are selected according to different vehicle types, and specific examples are as follows:
taking the highest temperature which can be born by the power chip in the vehicle-mounted charger and the power converter during working into consideration, obtaining K through theoretical calculation and multiple tests 3 =1.1, 55×k 3 ＝60.5℃，50*K 3 The temperature of the body of the vehicle-mounted charger or the power converter is larger than 60.5 ℃, the fan is started, and the fan is stopped when the temperature of the body of the vehicle-mounted charger or the power converter is smaller than 55 ℃.
Example two
Fig. 3 is a schematic block diagram illustrating a structure of a cooling fan control apparatus of a charging and power distribution system assembly according to an exemplary embodiment, the apparatus comprising:
the obtaining module 210 is configured to obtain a hardware maximum current and a current body temperature of the vehicle-mounted charger, and a rated current and a current body temperature of the power converter, respectively;
the first judgment policy module 220 is configured to execute a control policy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum hardware current of the vehicle-mounted charger;
a second judgment policy module 230, configured to execute a control policy of the power converter working current on the cooling fan according to the rated current of the power converter;
and a third judging policy module 240, configured to execute a control policy of the current body temperature on the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter.
Preferably, the first judgment policy module 220 is configured to:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 A second OBC operating current threshold;
judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, the fan is started, and the fan is closed until the maximum current of the hardware of the vehicle-mounted charger is less than or equal to the second OBC working current threshold value;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the second judgment policy module 230 is configured to:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein l D For rated current, k, of the power converter 4 For the threshold value of the working current value of the power converter, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, the fan is started, and the fan is closed until the maximum current of hardware of the vehicle-mounted charger is less than the working current threshold of the power converter;
and if not, executing the control strategy of the current body temperature on the cooling fan.
Preferably, the third judgment policy module 240 is configured to:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
Example III
Fig. 3 is a block diagram of a terminal provided in an embodiment of the present application, where the terminal may be a terminal in the foregoing embodiment. The terminal 300 may be a portable mobile terminal such as: smart phone, tablet computer. The terminal 300 may also be referred to by other names of user equipment, portable terminals, etc.
In general, the terminal 300 includes: a processor 301 and a memory 302.
Processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 301 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 301 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 301 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
Memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. Memory 302 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 302 is used to store at least one instruction for execution by processor 301 to implement a charging power system assembly radiator fan control method provided herein.
In some embodiments, the terminal 300 may further optionally include: a peripheral interface 303, and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch screen 305, camera 306, audio circuitry 307, positioning component 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one Input/Output (I/O) related peripheral to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 301, the memory 302, and the peripheral interface 303 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 304 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuitry 304 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 304 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry 304 may also include NFC (Near Field Communication ) related circuitry, which is not limited in this application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch screen 305 also has the ability to collect touch signals at or above the surface of the touch screen 305. The touch signal may be input as a control signal to the processor 301 for processing. The touch screen 305 is used to provide virtual buttons and/or virtual keyboards, also known as soft buttons and/or soft keyboards. In some embodiments, the touch display 305 may be one, providing a front panel of the terminal 300; in other embodiments, the touch display 305 may be at least two, respectively disposed on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or a folded surface of the terminal 300. Even more, the touch display screen 305 may be arranged in an irregular pattern that is not rectangular, i.e., a shaped screen. The touch display 305 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly 306 is used to capture images or video. Optionally, the camera assembly 306 includes a front camera and a rear camera. In general, a front camera is used for realizing video call or self-photographing, and a rear camera is used for realizing photographing of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and the rear cameras are any one of a main camera, a depth camera and a wide-angle camera, so as to realize fusion of the main camera and the depth camera to realize a background blurring function, and fusion of the main camera and the wide-angle camera to realize a panoramic shooting function and a Virtual Reality (VR) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
Audio circuitry 307 is used to provide an audio interface between the user and terminal 300. The audio circuit 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 301 for processing, or inputting the electric signals to the radio frequency circuit 304 for voice communication. For the purpose of stereo acquisition or noise reduction, a plurality of microphones may be respectively disposed at different portions of the terminal 300. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 307 may also include a headphone jack.
The location component 308 is used to locate the current geographic location of the terminal 300 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 308 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
The power supply 309 is used to power the various components in the terminal 300. The power source 309 may be alternating current, direct current, disposable or rechargeable. When the power source 309 comprises a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 300 further includes one or more sensors 310. The one or more sensors 310 include, but are not limited to: acceleration sensor 311, gyroscope sensor 312, pressure sensor 313, fingerprint sensor 314, optical sensor 315, and proximity sensor 316.
The acceleration sensor 311 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 300. For example, the acceleration sensor 311 may be used to detect components of gravitational acceleration on three coordinate axes. The processor 301 may control the touch display screen 305 to display a user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 311. The acceleration sensor 311 may also be used for the acquisition of motion data of a game or a user.
The gyro sensor 312 may detect a body direction and a rotation angle of the terminal 300, and the gyro sensor 312 may collect 3D (three-dimensional) motion of the user to the terminal 300 in cooperation with the acceleration sensor 311. The processor 301 may implement the following functions according to the data collected by the gyro sensor 312: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 313 may be disposed at a side frame of the terminal 300 and/or at a lower layer of the touch screen 305. When the pressure sensor 313 is provided at the side frame of the terminal 300, a grip signal of the terminal 300 by a user may be detected, and left-right hand recognition or shortcut operation may be performed according to the grip signal. When the pressure sensor 313 is disposed at the lower layer of the touch screen 305, control of the operability control on the UI interface can be achieved according to the pressure operation of the user on the touch screen 305. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 314 is used to collect a fingerprint of a user to identify the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 301 to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 314 may be provided on the front, back or side of the terminal 300. When a physical key or a manufacturer Logo is provided on the terminal 300, the fingerprint sensor 314 may be integrated with the physical key or the manufacturer Logo.
The optical sensor 315 is used to collect the ambient light intensity. In one embodiment, processor 301 may control the display brightness of touch screen 305 based on the intensity of ambient light collected by optical sensor 315. Specifically, when the intensity of the ambient light is high, the display brightness of the touch display screen 305 is turned up; when the ambient light intensity is low, the display brightness of the touch display screen 305 is turned down. In another embodiment, the processor 301 may also dynamically adjust the shooting parameters of the camera assembly 306 according to the ambient light intensity collected by the optical sensor 315.
A proximity sensor 316, also referred to as a distance sensor, is typically disposed on the front face of the terminal 300. The proximity sensor 316 is used to collect the distance between the user and the front of the terminal 300. In one embodiment, when the proximity sensor 316 detects a gradual decrease in the distance between the user and the front face of the terminal 300, the processor 301 controls the touch screen 305 to switch from the on-screen state to the off-screen state; when the proximity sensor 316 detects that the distance between the user and the front surface of the terminal 300 gradually increases, the processor 301 controls the touch display screen 305 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 3 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.
Example IV
In an exemplary embodiment, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for controlling a cooling fan of a charging and power distribution system assembly as provided in all inventive embodiments of the present application.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Example five
In an exemplary embodiment, an application program product is also provided that includes one or more instructions that are executable by the processor 301 of the above apparatus to perform a charging and power distribution system assembly radiator fan control method as described above.
Claims (10)
1. A control method of a cooling fan of a charging and distribution system assembly is characterized by comprising the following steps:
the method comprises the steps of respectively obtaining the maximum current of hardware and the current body temperature of a vehicle-mounted charger, and the rated current and the current body temperature of a power converter;
executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum current of the hardware of the vehicle-mounted charger;
executing a control strategy of working current of the power converter on the cooling fan according to rated current of the power converter;
and executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter.
2. The method of claim 1, wherein the executing the vehicle-mounted charger operating current versus cooling fan control strategy according to the hardware maximum current of the vehicle-mounted charger comprises:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 A second OBC operating current threshold;
judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, the fan is started, and the fan is closed until the maximum current of the hardware of the vehicle-mounted charger is less than or equal to the second OBC working current threshold value;
and if not, executing the control strategy of the current body temperature on the cooling fan.
3. The method of claim 1, wherein said executing a power converter operating current versus cooling fan control strategy based on a rated current of said power converter comprises:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein l D For power convertersRated current, k 4 Operating current value for power converter
Threshold, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, turning on the fan until rated current of the power converter is less than the working current threshold of the power converter, and turning off the fan;
and if not, executing the control strategy of the current body temperature on the cooling fan.
4. The method of claim 1, wherein the executing the current body temperature versus radiator fan control strategy according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter comprises:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
5. A charging and distribution system assembly radiator fan control device, comprising:
the acquisition module is used for respectively acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter;
the first judgment strategy module is used for executing a control strategy of the working current of the vehicle-mounted charger on the cooling fan according to the maximum hardware current of the vehicle-mounted charger;
the second judgment strategy module is used for executing a strategy of controlling the cooling fan by the working current of the power converter according to the rated current of the power converter;
and the third judgment strategy module is used for executing a control strategy of the current body temperature to the cooling fan according to the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter.
6. The charging and distribution system assembly radiator fan control device according to claim 5, wherein the first judgment policy module is configured to:
and respectively determining a first OBC working current threshold value and a second OBC working current threshold value according to the hardware maximum current of the vehicle-mounted charger and formulas (1) and (2):
I s1 ＝I O *K 1 (1)
I s2 ＝I O *K 2 (2)
wherein I is O For maximum current of hardware of vehicle-mounted charger, K 1 For the first OBC operating current parameter, K 2 Is the second OBC working current parameter, and K 1 ＞K 2 ，I s1 For the first OBC operating current threshold, I s2 A second OBC operating current threshold;
judging whether the hardware maximum current of the vehicle-mounted charger is larger than or equal to a first OBC working current threshold value or not:
if yes, the fan is started, and the fan is closed until the maximum current of the hardware of the vehicle-mounted charger is less than or equal to the second OBC working current threshold value;
and if not, executing the control strategy of the current body temperature on the cooling fan.
7. The charging and distribution system assembly cooling fan control device according to claim 5, wherein the second judgment policy module is configured to:
obtaining a working current threshold value of the power converter according to a rated current of the power converter through a formula (3):
I set ＝l D *k 4 (3)
wherein l D For rated current, k, of the power converter 4 Operating current value for power converter
Threshold, I set Operating a current threshold for the power converter;
judging whether the working current threshold value of the power converter is more than or equal to the rated current of the power converter or not:
if yes, turning on the fan until rated current of the power converter is less than the working current threshold of the power converter, and turning off the fan;
and if not, executing the control strategy of the current body temperature on the cooling fan.
8. The charging and distribution system assembly cooling fan control device according to claim 5, wherein the third judgment policy module is configured to:
judging whether at least one of the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter is more than or equal to a temperature threshold value:
if yes, turning on a fan until the current body temperature of the vehicle-mounted charger and the current body temperature of the power converter judge whether at least one of the current body temperature and the current body temperature of the power converter is less than a temperature threshold value, and turning off the fan;
and if not, maintaining the current state and repeatedly acquiring the hardware maximum current and the current body temperature of the vehicle-mounted charger and the rated current and the current body temperature of the power converter.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a charging and distribution system assembly cooling fan control method as claimed in any one of claims 1 to 4 is performed.
10. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a charging and power distribution system assembly radiator fan control method according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310565957.XA CN116557327A (en) | 2023-05-19 | 2023-05-19 | Charging and distribution system assembly cooling fan control method, device and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310565957.XA CN116557327A (en) | 2023-05-19 | 2023-05-19 | Charging and distribution system assembly cooling fan control method, device and terminal |
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| CN116557327A true CN116557327A (en) | 2023-08-08 |
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| CN202310565957.XA Pending CN116557327A (en) | 2023-05-19 | 2023-05-19 | Charging and distribution system assembly cooling fan control method, device and terminal |
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