CN113942424A - Electric vehicle control method and device and computer equipment - Google Patents
Electric vehicle control method and device and computer equipment Download PDFInfo
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- CN113942424A CN113942424A CN202111133181.1A CN202111133181A CN113942424A CN 113942424 A CN113942424 A CN 113942424A CN 202111133181 A CN202111133181 A CN 202111133181A CN 113942424 A CN113942424 A CN 113942424A
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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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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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
An embodiment of the present application provides an electric vehicle control method, apparatus and computer equipment, the electric vehicle includes a power battery, a cooling fluid circulation device for controlling the flow of the cooling fluid in the power battery, and a temperature adjustment device for adjusting the temperature of the cooling fluid, the method includes: when an instruction for temperature control of the power battery is triggered, controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to adjust the temperature of the power battery; and acquiring the real-time temperature of the power battery, and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval. The technical scheme that this application provided can reduce the energy consumption of adjusting power battery temperature to accelerate regulation speed.
Description
Technical Field
The application relates to the field of electric automobiles, in particular to an electric automobile control method and device and computer equipment.
Background
At present, the new energy electric automobile adopts a power battery to provide power, the power battery can be safely operated at a proper temperature, the service life is prolonged, and then a battery cooling system becomes a necessary part and heats the battery at a low temperature so that the battery can quickly reach the working temperature; the battery is cooled at high temperature, and the safety is ensured. To electric automobile power battery's temperature regulation, mostly adopt coolant liquid or refrigerant as cooling medium on the market at present, and these heat transfer medium all need let in the refrigerant through compressor work and take away the heat, and compressor and PTC heating can consume the energy, have great influence to electric automobile's continuation of the journey.
Therefore, a control method capable of quickly adjusting the temperature of the power battery and reducing the energy consumption for adjusting the temperature of the power battery is urgently needed by the technical personnel in the field.
Disclosure of Invention
The embodiment of the application provides an electric automobile control method, an electric automobile control device and computer equipment, so that energy consumption for adjusting the temperature of a power battery can be reduced at least to a certain extent, and the adjusting speed is accelerated.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of the present application, there is provided a control method of an electric vehicle including a power battery, a cooling fluid circulation device for controlling a flow of cooling fluid in the power battery, and a temperature adjustment device for adjusting a temperature of the cooling fluid, the method including: when an instruction for temperature control of the power battery is triggered, controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to adjust the temperature of the power battery; and acquiring the real-time temperature of the power battery, and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
In some embodiments of the present application, the controlling, by the cooling fluid circulation device, the flow of the cooling fluid in the power battery at a first fluid flow rate to regulate the temperature of the power battery when the instruction for temperature control of the power battery is triggered, includes: acquiring the initial temperature of the power battery; when the initial temperature of the power battery is greater than or equal to a first battery temperature, triggering a command for controlling the temperature of the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a first fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to reduce the temperature of the power battery.
In some embodiments of the present application, when the real-time temperature does not belong to a predetermined temperature interval, the method further comprises: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a second fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the second fluid temperature is lower than the first fluid temperature.
In some embodiments of the present application, the method further comprises: and when the real-time temperature is less than or equal to a second battery temperature, simultaneously closing the temperature control device and the cooling fluid circulating device, wherein the second battery temperature is less than the maximum value in the preset temperature interval.
In some embodiments of the present application, when a command for temperature control of the power battery is triggered, controlling the flow of the cooling fluid in the power battery by the cooling fluid circulation device at a first fluid flow rate to regulate the temperature of the power battery, includes: acquiring the initial temperature of the power battery; when the initial temperature of the power battery is less than or equal to a third battery temperature, triggering a command of temperature control for the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a third fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to increase the temperature of the power battery.
In some embodiments of the present application, when the real-time temperature does not belong to a predetermined temperature interval, the method further comprises: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a fourth fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the fourth fluid temperature is higher than the third fluid temperature.
In some embodiments of the present application, the method further comprises: and when the real-time temperature is greater than or equal to a fourth battery temperature, simultaneously turning off the temperature control device and the cooling fluid circulating device, wherein the fourth battery temperature is greater than the minimum value in the preset temperature interval.
In some embodiments of the present application, the method further comprises: and after the temperature adjusting device is controlled to be closed for a preset time length, the cooling fluid circulating device is controlled to be closed.
According to an aspect of the present application, there is provided a control device of an electric vehicle, characterized in that the electric vehicle includes a power battery, a cooling fluid circulation device for controlling a flow of the cooling fluid in the power battery, and a temperature adjustment device for adjusting a temperature of the cooling fluid, the device including: a first control unit for controlling the flow of the cooling fluid in the power battery by the cooling fluid circulation device at a first fluid flow rate to adjust the temperature of the power battery when an instruction for temperature control of the power battery is triggered; and the second control unit is used for acquiring the real-time temperature of the power battery and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
According to an aspect of the present application, there is provided a computer device, characterized in that the computer device comprises one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to realize the operations performed by the electric vehicle control method.
Based on the scheme, the application has at least the following advantages or progress effects:
in this application, through closing temperature regulation apparatus in advance, reduce the electric quantity that temperature regulation apparatus consumed, can effectively reduce whole car energy consumption. Simultaneously, this application can the temperature of quick adjustment power battery, adjusts power battery and is in suitable temperature region, avoids too high or temperature influence power battery's life-span excessively low. In addition, this application can also slow down vibrations and the noise problem that temperature regulation apparatus work arouses, has promoted temperature regulation apparatus's life-span and silence nature.
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 application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 illustrates an electric vehicle control methodology schematic in one embodiment of the present application;
FIG. 2 illustrates an electric vehicle control methodology schematic in one embodiment of the subject application;
FIG. 3 illustrates an electric vehicle control methodology schematic in one embodiment of the subject application;
FIG. 4 illustrates an electric vehicle control methodology schematic in one embodiment of the subject application;
FIG. 5 illustrates an electric vehicle control methodology schematic in one embodiment of the subject application;
FIG. 6 shows a schematic of an electric vehicle control arrangement in an embodiment of the present application;
FIG. 7 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
Referring to fig. 1, fig. 1 shows a schematic diagram of a control method of an electric vehicle in an embodiment of the present application, the electric vehicle including a power battery, a cooling fluid circulation device for controlling a flow of cooling fluid in the power battery, and a temperature adjustment device for adjusting a temperature of the cooling fluid, the method including steps S101 to S102:
and S101, when an instruction for controlling the temperature of the power battery is triggered, controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to regulate the temperature of the power battery.
And S102, acquiring the real-time temperature of the power battery, and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
In this application, the predetermined temperature range may be set according to actual conditions, may be wider than the optimal operating temperature range of the power battery, and may also be directly adopted. Therefore, when the temperature of the power battery is adjusted to be within the optimal working temperature range, the temperature adjusting device can be controlled to be turned off, and the temperature of the power battery is continuously adjusted through the circulating cooling fluid, so that the electric quantity consumed by the temperature adjusting device is reduced, and the energy consumption of the whole vehicle is reduced.
In one embodiment of the present application, the control method may further include: and after the temperature adjusting device is controlled to be closed for a preset time length, the cooling fluid circulating device is controlled to be closed.
In this application, when closing behind the temperature regulation apparatus, the cooling fluid device is still working, the cooling fluid is still adjusting power battery's temperature, consequently can reduce the electric quantity that temperature regulation apparatus consumed to reduce the energy consumption of whole car. And after the temperature adjusting device is closed for a preset time length, the cooling fluid circulating device can be controlled to be closed, and the temperature of the power battery is in the optimal working temperature range. For example, the cooling fluid circulation device may be turned off after controlling the thermostat off for 5 minutes.
Next, the present application will be explained in detail in two cases, the first case is when the power battery needs cooling operation:
referring to fig. 2, fig. 2 is a schematic diagram illustrating an electric vehicle control method according to an embodiment of the present application, wherein when a command for controlling the temperature of the power battery is triggered, the flow of the cooling fluid in the power battery is controlled by the cooling fluid circulation device according to a first fluid flow rate to adjust the temperature of the power battery, and the method for determining whether to trigger may include steps S201 to S202:
Step S201: and acquiring the initial temperature of the power battery.
Step S202: when the initial temperature of the power battery is greater than or equal to a first battery temperature, triggering a command for controlling the temperature of the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a first fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to reduce the temperature of the power battery.
In this application, power battery has the best operating temperature scope, works as power battery's temperature is in the best operating temperature scope, power battery has the best charge-discharge performance for electric automobile has the best power performance. When the initial temperature of the power battery is obtained to exceed the optimal working temperature range, specifically, the initial temperature is greater than or equal to the first battery temperature, that is, the initial temperature is greater than or equal to the maximum value of the optimal working temperature range, the power battery needs to be cooled. For example, the optimal operating temperature range of an existing power battery is 25 ℃ to 35 ℃, the obtained power battery temperature is 40 ℃, and the command for controlling the temperature of the power battery is triggered, so that the temperature adjusting device can be controlled to adjust the temperature of the cooling fluid to 20 ℃, that is, the temperature of the cooling fluid is 20 ℃ as the first fluid temperature, and the flow of the cooling fluid in the power battery is controlled by the cooling fluid circulating device according to the flow rate of 10L/min, so as to reduce the temperature of the power battery.
In an embodiment of the present application, when the real-time temperature does not belong to a predetermined temperature interval, the method may further include: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a second fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the second fluid temperature is lower than the first fluid temperature.
In this application, in order to make the temperature of power battery can adjust to the best operating temperature within range as early as possible, trigger right power battery is after cooling down, can take the cooling operation of bigger dynamics: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a lower second fluid temperature, so as to accelerate the cooling speed of the power battery. For example, when the temperature of the cooling fluid is adjusted to 20 ℃ to cool the power battery, the temperature adjusting device may be controlled to adjust the temperature of the cooling fluid to 15 ℃, so as to improve the heat exchange efficiency between the cooling fluid and the power battery, thereby increasing the cooling speed of the power battery.
In one embodiment of the present application, the method may further include: and when the real-time temperature is less than or equal to a second battery temperature, simultaneously closing the temperature control device and the cooling fluid circulating device, wherein the second battery temperature is less than the maximum value in the preset temperature interval.
In this application, when the real-time temperature is less than or equal to the second battery temperature, it means that the power battery is already in the optimal operating temperature range, and is in the safest operating temperature range, and at this time, the cooling fluid circulation device and the temperature adjustment device are not needed to cool the power battery. For example, the maximum value in the predetermined temperature interval may be 25 ℃. Under normal conditions, the temperature adjusting device can be closed when the real-time temperature is detected to be 25 ℃, the cooling fluid circulating device is kept running, the power battery is continuously cooled through the cooling fluid at a lower temperature, but when the real-time temperature is detected to be 20 ℃, the temperature control device and the cooling fluid circulating device can be closed simultaneously, the cooling operation of the power battery is stopped, and at the moment, the power battery is in a proper working temperature range.
The first case will be described next by way of a complete example so that a person skilled in the art can more thoroughly understand the present application.
Fig. 3 shows a schematic diagram of an electric vehicle control method in an embodiment of the present application. As shown in fig. 3, the method comprises steps S301-S305:
And S301, when the temperature of the power battery is detected to be greater than or equal to 35 ℃, triggering a cooling operation for the power battery, and executing S302.
And S302, controlling the temperature adjusting device to adjust the temperature of cooling fluid to 20 ℃, controlling the cooling fluid to flow in the power battery at a flow rate of 12L/min through the cooling fluid circulating device, and cooling the power battery. And detecting the temperature of the power battery in real time, if the real-time temperature of the power battery is detected to be less than or equal to 25 ℃, executing the step S303, otherwise executing the step S305.
In step S303, the temperature adjustment device may be controlled to be turned off, the cooling fluid circulation system is kept running, the cooling fluid at a lower temperature is allowed to continue cooling the power battery, and step S304 is executed after 5 minutes from step S303, that is, after 5 minutes from turning off the temperature adjustment device.
And step S304, closing the cooling fluid circulating device and finishing the temperature reduction operation.
In step S305, in order to cool the power battery as soon as possible, the temperature of the cooling fluid is adjusted to 18 ℃ by controlling the temperature adjusting device. And if the real-time temperature of the power battery is detected to be less than or equal to 20 ℃, closing the temperature regulating device and the cooling fluid circulating device at the same time, and finishing the cooling operation.
Next, a second case will be described, in which the power battery requires a temperature raising operation:
referring to fig. 4, fig. 4 is a schematic diagram illustrating an electric vehicle control method according to an embodiment of the present application, wherein when a command for controlling the temperature of the power battery is triggered, the flow of the cooling fluid in the power battery is controlled by the cooling fluid circulation device according to a first fluid flow rate to adjust the temperature of the power battery, and the method for determining whether to trigger may include steps S401 to S402:
step S401: and acquiring the initial temperature of the power battery.
Step S402: when the initial temperature of the power battery is less than or equal to a third battery temperature, triggering a command of temperature control for the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a third fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to increase the temperature of the power battery.
In this application, power battery has the best operating temperature scope, works as power battery's temperature is in the best operating temperature scope, power battery has the best charge-discharge performance for electric automobile has the best power performance. When the initial temperature of the power battery is obtained to exceed the optimal working temperature range, specifically, the initial temperature is less than or equal to the third battery temperature, that is, the initial temperature is less than or equal to the minimum value of the optimal working temperature range, the power battery needs to be subjected to temperature rise treatment. For example, the optimal operating temperature range of an existing power battery is 25 ℃ to 35 ℃, the obtained power battery temperature is 15 ℃, and the command for controlling the temperature of the power battery is triggered, the temperature adjusting device can be controlled to adjust the temperature of the cooling fluid to 40 ℃, that is, the temperature of the cooling fluid is 40 ℃ as the third fluid temperature, and the flow of the cooling fluid in the power battery is controlled by the cooling fluid circulating device according to the flow rate of 12L/min, so as to increase the temperature of the power battery.
In an embodiment of the present application, when the real-time temperature does not belong to a predetermined temperature interval, the method may further include: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a fourth fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the fourth fluid temperature is higher than the third fluid temperature.
In the application, in order to adjust the temperature of the power battery to be within the optimal working temperature range as soon as possible, after triggering the temperature rise of the power battery, a temperature rise operation with a larger force is adopted: and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a higher fourth fluid temperature, so as to accelerate the cooling speed of the power battery. For example, when the temperature of the cooling fluid is adjusted to 40 ℃ to heat the power battery, the temperature adjusting device may be controlled to adjust the temperature of the cooling fluid to 50 ℃ to improve the heat exchange efficiency between the cooling fluid and the power battery, thereby increasing the temperature rise speed of the power battery.
In one embodiment of the present application, the method may further include: and when the real-time temperature is greater than or equal to a fourth battery temperature, simultaneously turning off the temperature control device and the cooling fluid circulation device, wherein the fourth battery temperature is higher than the minimum value in the preset temperature interval.
In this application, when the real-time temperature is greater than or equal to the fourth battery temperature, it means that the power battery is already in the optimum operating temperature range and the safest operating temperature range, and the cooling fluid circulation device and the temperature regulation device are not needed to continue warming the power battery. For example, the minimum value in the predetermined temperature interval may be 10 ℃. Under normal conditions, the temperature adjusting device can be closed when the real-time temperature is detected to be 10 ℃, meanwhile, the cooling fluid circulating device is kept running, and the power battery is continuously heated through the cooling fluid at higher temperature. However, when the real-time temperature is detected to be 15 ℃, the temperature control device and the cooling fluid circulating device can be simultaneously closed, namely, the temperature rise of the power battery is stopped, and the power battery is in the proper working temperature range.
Next, the second case will be described by way of a complete example so that those skilled in the art can more deeply understand the present application.
Fig. 5 shows a schematic diagram of an electric vehicle control method in an embodiment of the present application. As shown in fig. 5, the method includes steps S501-S505:
And step S501, when the temperature of the power battery is detected to be less than or equal to 5 ℃, triggering a temperature raising operation for the power battery, and executing step S502.
Step S502, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to 40 ℃, controlling the cooling fluid to flow in the power battery at a flow rate of 12L/min through the cooling fluid circulating device, and heating the power battery. And detecting the temperature of the power battery in real time, if the real-time temperature of the power battery is detected to be greater than or equal to 10 ℃, executing a step S503, otherwise executing a step S505.
In step S503, the temperature adjustment device may be controlled to be turned off, the cooling fluid circulation system is kept running, the power battery is continuously heated by the cooling fluid at a higher temperature, and after 5 minutes elapses, that is, after 5 minutes elapses, the temperature adjustment device is controlled to be turned off, and step S504 is executed.
And step S504, closing the cooling fluid circulating device and finishing the temperature rise operation.
Step S305, in order to cool the power battery as soon as possible, the temperature of the cooling fluid is adjusted to 50 ℃ by controlling the temperature adjusting device. And if the real-time temperature of the power battery is detected to be greater than or equal to 15 ℃, closing the temperature regulating device and the cooling fluid circulating device at the same time, and ending the temperature rising operation.
Next, an apparatus embodiment of the present application will be described with reference to the drawings.
Fig. 6 shows a schematic diagram of an electric vehicle control apparatus in an embodiment of the present application. The electric vehicle control device includes: the first control unit 601 and the second control unit 602 may be configured as follows:
and a first control unit 601, configured to control, by the cooling fluid circulation device, a flow of the cooling fluid in the power battery at a first fluid flow rate to adjust the temperature of the power battery when a command for temperature control of the power battery is triggered.
And the second control unit 602 is used for acquiring the real-time temperature of the power battery, and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
FIG. 7 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present application.
It should be noted that the computer system 700 of the electronic device shown in fig. 7 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 7, the computer system 700 includes a Central Processing Unit (CPU) 701, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, according to a program stored in a Read-Only Memory (ROM) 702 or a program loaded from a storage section 708 into a Random Access Memory (RAM) 703. In the RAM 703, various programs and data necessary for system operation are also stored. The CPU 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An Input/Output (I/O) interface 705 is also connected to the bus 704.
The following components are connected to the I/O interface 705: an input portion 706 including a keyboard, a mouse, and the like; an output section 707 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage section 708 including a hard disk and the like; and a communication section 709 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. A drive 710 is also connected to the I/O interface 705 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is mounted on the drive 710 as necessary, so that a computer program read out therefrom is mounted into the storage section 708 as necessary.
In particular, according to embodiments of the application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 709, and/or installed from the removable medium 711. The computer program executes various functions defined in the system of the present application when executed by a Central Processing Unit (CPU) 701.
It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: 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), a 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 the present application, 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. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. 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, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
As another aspect, the present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the first aspect or the various alternative implementations of the first aspect.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A control method of an electric vehicle, characterized in that the electric vehicle includes a power battery, a cooling fluid circulation device for controlling a flow of the cooling fluid in the power battery, and a temperature adjustment device for adjusting a temperature of the cooling fluid, the method comprising:
when an instruction for temperature control of the power battery is triggered, controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to adjust the temperature of the power battery;
and acquiring the real-time temperature of the power battery, and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
2. The method of claim 1, wherein the controlling the flow of the cooling fluid in the power cell by the cooling fluid circulation device to regulate the temperature of the power cell at a first fluid flow rate when the command for temperature control of the power cell is triggered comprises:
acquiring the initial temperature of the power battery;
when the initial temperature of the power battery is greater than or equal to a first battery temperature, triggering a command for controlling the temperature of the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a first fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to reduce the temperature of the power battery.
3. The method of claim 2, wherein when the real-time temperature does not fall within a predetermined temperature interval, the method further comprises:
and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a second fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the second fluid temperature is lower than the first fluid temperature.
4. The method of claim 2, further comprising:
and when the real-time temperature is less than or equal to a second battery temperature, simultaneously closing the temperature control device and the cooling fluid circulating device, wherein the second battery temperature is less than the maximum value in the preset temperature interval.
5. The method of claim 1, wherein controlling the flow of cooling fluid in the power cell by the cooling fluid circulation device to regulate the temperature of the power cell at a first fluid flow rate when a command to temperature control the power cell is triggered comprises:
acquiring the initial temperature of the power battery;
When the initial temperature of the power battery is less than or equal to a third battery temperature, triggering a command of temperature control for the power battery, controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a third fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to a first fluid flow rate so as to increase the temperature of the power battery.
6. The method of claim 5, wherein when the real-time temperature does not fall within a predetermined temperature interval, the method further comprises:
and controlling the temperature adjusting device to adjust the temperature of the cooling fluid to a fourth fluid temperature, and controlling the flow of the cooling fluid in the power battery through the cooling fluid circulating device according to the first fluid flow rate, wherein the fourth fluid temperature is higher than the third fluid temperature.
7. The method of claim 5, further comprising:
and when the real-time temperature is greater than or equal to a fourth battery temperature, simultaneously turning off the temperature control device and the cooling fluid circulating device, wherein the fourth battery temperature is greater than the minimum value in the preset temperature interval.
8. The method of claim 1, further comprising:
and after the temperature adjusting device is controlled to be closed for a preset time length, the cooling fluid circulating device is controlled to be closed.
9. A control device of an electric vehicle, characterized in that the electric vehicle includes a power battery, a cooling fluid circulation device for controlling a flow of cooling fluid in the power battery, and a temperature adjustment device for adjusting a temperature of the cooling fluid, the device comprising:
a first control unit for controlling the flow of the cooling fluid in the power battery by the cooling fluid circulation device at a first fluid flow rate to adjust the temperature of the power battery when an instruction for temperature control of the power battery is triggered;
and the second control unit is used for acquiring the real-time temperature of the power battery and controlling to close the temperature adjusting device when the real-time temperature belongs to a preset temperature interval.
10. A computer device, characterized in that the computer device comprises one or more processors and one or more memories, in which at least one program code is stored, which is loaded and executed by the one or more processors to implement the operations performed by the electric vehicle control method according to any one of claims 1 to 8.
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| CN202111133181.1A CN113942424A (en) | 2021-09-27 | 2021-09-27 | Electric vehicle control method and device and computer equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111133181.1A CN113942424A (en) | 2021-09-27 | 2021-09-27 | Electric vehicle control method and device and computer equipment |
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