CN115179815A - A power battery temperature control method, system, terminal and storage medium - Google Patents

Abstract

The invention discloses a power battery temperature control method, system, terminal and storage medium, belonging to the technical field of power battery control, comprising: acquiring current vehicle speed and power battery related data; The optimal operating temperature of the battery cell and the limit of noise in the vehicle are used to determine the blower speed and battery intake air temperature required by the current battery system; instructions are sent to the corresponding device through the blower speed and battery intake air temperature required by the current battery system. This patent makes use of the current vehicle air conditioning system cold and heat, and according to the input of vehicle speed, battery blower rotation speed, battery inlet air temperature, battery current temperature and battery charge and discharge power in the previous X seconds, through the battery inlet air temperature and battery blower rotation speed, so that The battery works in the optimal temperature range, which fully protects the performance and life of the battery, while reducing the noise inside the car and reducing the impact on the comfort of the driver and passengers.

Description

A power battery temperature control method, system, terminal and storage medium

technical field

The invention discloses a power battery temperature control method, system, terminal and storage medium, belonging to the technical field of power battery control.

Background technique

With the increasingly serious energy and environmental problems, electric vehicles are becoming more and more popular. As the power source of the battery, its performance has a serious impact on the performance of the vehicle. The temperature of the power battery is a very important performance parameter of the power battery. At present, some manufacturers use air cooling technology to adjust the temperature of the battery. In order to meet the performance requirements of power vehicles, unreasonable power battery control devices and control methods will deteriorate the working environment of the battery system, affect the output and service life of battery power, and affect the comfort of drivers and passengers.

SUMMARY OF THE INVENTION

In view of the defects of the prior art, the present invention proposes a power battery temperature control method, system, terminal and storage medium, which are proposed on the basis of comprehensively considering the battery system structure design, battery thermal safety, battery performance and occupant driving comfort, It can effectively prevent the power battery temperature from being too high, too low, or too loud in the car.

The technical scheme of the present invention is as follows:

According to a first aspect of the embodiments of the present invention, a method for controlling temperature of a power battery is provided, including:

Obtain current vehicle speed and power battery related data;

Determine the blower rotation speed and the battery inlet air temperature required by the current battery system by using the current vehicle speed and data related to the power battery with the optimal operating temperature of the battery system cell and the limit of noise in the vehicle as the goal;

Instructions are sent to the corresponding devices through the speed of the blower and the temperature of the battery inlet air required by the current battery system.

Preferably, the current power battery related data includes: current battery blower speed, current battery inlet air temperature, current battery system temperature, current vehicle interior noise value and battery average charge and discharge power for X seconds.

Preferably, the average charge and discharge power of the battery for the first X seconds is obtained, including:

Obtain the average battery current of the first X seconds of the battery and the average battery voltage of the first X seconds of the battery;

The average charge and discharge power of the battery for the first X seconds is determined by the average battery current for the first X seconds of the battery and the average battery voltage for the first X seconds of the battery.

Preferably, by using the current vehicle speed and relevant data of the power battery, the optimal operating temperature of the battery cells of the battery system and the limit of noise in the vehicle are used to determine the blower rotation speed and the battery inlet air temperature required by the current battery system, including:

The current vehicle speed, current battery blower speed, current battery inlet air temperature, battery X-second average charge and discharge power, battery system cell optimum temperature and vehicle minimum noise value are obtained through a half-factor test to obtain the influence weight of the current battery thermal management system ;

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and the battery inlet air temperature required by the current battery system are determined.

Preferably, the blower rotation speed and battery required by the current battery system are determined by the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current vehicle interior noise value, and the average charge and discharge power of the battery for X seconds. Inlet air temperature, including:

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature:

(n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1)

Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds.

According to a second aspect of the embodiments of the present invention, a power battery temperature control system is provided, characterized in that it includes:

The acquisition module is used to acquire the current vehicle speed and data related to the power battery;

an analysis module, configured to determine the blower speed and battery inlet air temperature required by the current battery system with the optimal operating temperature of the battery system cells and the limit of in-vehicle noise as the goals through the current vehicle speed and power battery-related data;

The execution module is configured to send an instruction to the corresponding device through the rotational speed of the blower and the temperature of the battery inlet air required by the current battery system.

Preferably, the analysis module is used for:

The current vehicle speed, current battery blower speed, current battery inlet air temperature, battery X-second average charge and discharge power, battery system cell optimum temperature and vehicle minimum noise value are obtained through a half-factor test to obtain the influence weight of the current battery thermal management system ;

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and the battery inlet air temperature required by the current battery system are determined.

Preferably, the analysis module is used for:

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature:

(n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1)

Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds.

According to a third aspect of the embodiments of the present invention, a terminal is provided, including:

one or more processors;

memory for storing the one or more processor-executable instructions;

wherein the one or more processors are configured to:

The method described in the first aspect of the embodiments of the present invention is performed.

According to a fourth aspect of the embodiments of the present invention, a non-transitory computer-readable storage medium is provided, which enables the terminal to execute the first aspect of the embodiments of the present invention when instructions in the storage medium are executed by a processor of a terminal the method described.

According to a fifth aspect of the embodiments of the present invention, an application program product is provided. When the application program product is running on a terminal, the terminal is made to execute the method described in the first aspect of the embodiments of the present invention.

The beneficial effects of the present invention are:

This patent provides a power battery temperature control method, system, terminal and storage medium. By using the current cold and heat of the vehicle air conditioning system, and using the vehicle speed, battery blower rotation speed, battery inlet air temperature, battery current temperature and battery X seconds before charging The input of discharge power, through the battery inlet air temperature and the battery blower speed, makes the battery work in the optimal temperature range, comprehensively protects the performance and life of the battery, reduces the noise in the car, and reduces the impact on the comfort of drivers and passengers .

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.

Description of drawings

Fig. 1 is a flow chart of a method for controlling the temperature of a power battery according to an exemplary embodiment;

Fig. 2 is a schematic block diagram showing the structure of a power battery temperature control system according to an exemplary embodiment;

Fig. 3 is a schematic block diagram showing the structure of a terminal according to an exemplary embodiment.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, and may be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

An embodiment of the present invention provides a method for controlling the temperature of a power battery. The method is implemented by a terminal. The terminal may be a smart phone, a desktop computer, or a notebook computer, and the terminal includes at least a CPU and the like.

Example 1

Fig. 1 is a flow chart showing a method for controlling temperature of a power battery according to an exemplary embodiment. The method is used in a terminal, and the method includes the following steps:

In step S101, the current vehicle speed and data related to the power battery are obtained, and the specific contents are as follows:

The current power battery related data includes: current battery blower speed, current battery inlet air temperature, current battery system temperature, current vehicle interior noise value, and battery X-second average charge and discharge power. in:

The current vehicle speed V, the range is V1, V2...Vn, from the idle speed of the vehicle to the maximum speed;

The current speed n of the battery blower is selected according to the battery thermal management system, so the speed gears are set to n1, n2...ni, in this embodiment, MAX{n1, n2...ni} is 3000r/min;

The current battery inlet air temperature D, that is, the current temperature in the cab, can be set to D1, D2...Dn according to the vehicle user's different feelings about the temperature comfort in the vehicle. Generally speaking, the value range of A is (18- 32) ℃, the median temperature is 25 ℃;

The current temperature Tb of the battery system is collected from the temperatures T1, T2, T3...Tn of typical cells in the battery system. In this embodiment, Tb=AVERAGE{T1, T2, T3...Tn};

The current interior noise value N,

The average charge and discharge power P of the battery for X seconds, obtain the average battery current for the first X seconds of the battery and the average battery voltage for the first X seconds of the battery, and determine the average charge and discharge of the battery for the first X seconds of the battery through the average battery current for the first X seconds of the battery and the average battery voltage for the first X seconds of the battery. power.

Step S102, determining the blower rotation speed and the battery inlet air temperature required by the current battery system by taking the optimal working temperature of the battery system cell and the limit of noise in the vehicle as the target through the current vehicle speed and power battery-related data;

Taking the current vehicle speed, the current speed of the battery blower, the current battery inlet air temperature, and the average charge and discharge power of the battery for X seconds as the factors, and the optimal temperature of the battery system cell and the lowest noise in the vehicle as the model response values, the experiment was carried out. The test results are determined to satisfy the influence weight of the current battery thermal management system;

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature:

(n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1)

Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds.

Step S103, sending an instruction to the corresponding device through the rotational speed of the blower and the temperature of the battery inlet air required by the current battery system.

Based on the above steps, the following will be specifically described with specific embodiments:

The level of vehicle speed is between 30km/h and 130km/h, the level of battery inlet air temperature is between 18°C and 32°C, the level of battery blower speed is between 1200r/min and 3000r/min, and the battery charge and discharge power is between 18°C and 32°C. The level is between 30kW and 100kW. A half-factorial experimental design scheme was adopted, each experiment was arranged in a completely random manner, and the experiment was repeated twice at the center point. The experimental results are shown in Table 1:

Table 1 Half-factor experimental design plan and result table

speed battery inlet air temperature battery blower speed Battery charge and discharge power battery temperature interior noise 40 18 1200 30 twenty two 34 90 25 2100 65 32 38 140 32 3000 100 42 45 40 32 3000 30 34 40 140 18 1200 100 36 36 140 32 1200 30 36 35 140 18 3000 30 19 44 40 18 3000 100 30 38 90 25 2100 65 32 37 40 32 1200 100 45 35

Analyze the factorial design according to Table 1, with the highest number of terms included in the model of order 2, view the Pareto effect plot and the residuals versus variables plot for the model. First, confirm whether the P value is less than 0.05, and judge whether the model is significant, so as to know the reliability of the test data and the accuracy of the model; secondly, whether the variables in the model are significant, eliminate the insignificant items, and re-analyze, and finally get The experimental ANOVA is shown in Tables 2 and 3:

Table 2 Battery temperature variance analysis table

source degrees of freedom Adi SS Adi MS F value P value Model 5 566.000 113.200 80.86 0.000 linear 4 558.000 139.500 99.64 0.000 speed 1 0.500 0.500 0.36 0.582 battery inlet air temperature 1 312.500 312.500 223.21 0.000 battery blower speed 1 24.500 24.500 17.50 0.014 Electric charge and discharge power 1 220.500 220.500 157.50 0.000 2-factor interaction 1 8.000 8.000 5.71 0.075 Vehicle speed*battery blower speed 1 8.000 8.000 5.71 0.075 error 4 5.600 1.400 bending 1 1.600 1.600 1.20 0.353 misfit 2 4.000 2.000 * * pure error 1 0.000 0.000 total 9 571.600

Table 3 Variance analysis of in-vehicle noise

source degrees of freedom Adj SS Adj MS F value P value Model 5 123.625 24.7250 24.88 0.004 linear 4 113.500 28.3750 28.55 0.003 speed 1 21.125 21.1250 21.26 0.010 battery inlet air temperature 1 1.125 1.1250 1.13 0.347 battery blower speed 1 91.125 91.1250 91.70 0.001 Battery charge and discharge power 1 0.125 0.1250 0.13 0.741 2-factor interaction 1 10.125 10.1250 10.19 0.033 Vehicle speed*battery blower speed 1 10.125 10.1250 10.19 0.033 error 4 3.975 0.9938 bending 1 1.225 1.2250 1.34 0.331 misfit 2 2.250 1.1250 2.25 0.426 pure error 1 0.500 0.5000 total 9 127.600

According to the factor analysis, the regression equation for battery temperature:

Battery temperature = 0.16 + 0.0517 vehicle speed + 0.8929 battery inlet air temperature + 0.000056 battery blower speed + 0.1500 battery charge and discharge power - 0.000022 vehicle speed * battery blower speed

The regression equation for interior noise:

In-vehicle noise = 30.55-0.0200 vehicle speed + 0.0536 battery inlet air temperature + 0.001500 battery blower speed + 0.0036 battery charge and discharge power + 0.000025 vehicle speed * battery blower speed, in order to analyze the response optimizer and find the optimal input parameters, the results are shown in Table 4 Shown below:

Table 4 Multiple response prediction table

It can be seen from the above table that the predicted value falls within the 95% confidence interval, which proves that the model is scientifically valid.

Embodiment 2

Fig. 2 is a structural diagram of a power battery temperature control system according to an exemplary embodiment, the system includes:

an acquisition module 210, used for acquiring the current vehicle speed and data related to the power battery;

An analysis module 220, configured to determine the blower speed and battery inlet air temperature required by the current battery system with the optimal operating temperature of the battery system cell and the limit of in-vehicle noise as the goal through the current vehicle speed and power battery-related data;

The execution module 230 is configured to send an instruction to the corresponding device through the rotational speed of the blower and the temperature of the battery inlet air required by the current battery system.

Preferably, the analysis module 230 is used for:

The current vehicle speed, current battery blower speed, current battery inlet air temperature, battery X-second average charge and discharge power, battery system cell optimum temperature and vehicle minimum noise value are obtained through a half-factor test to obtain the influence weight of the current battery thermal management system ;

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and the battery inlet air temperature required by the current battery system are determined.

Preferably, the analysis module 230 is used for:

According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature:

(n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1)

Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds.

Embodiment 3

Fig. 3 is a structural block diagram of a terminal provided by an embodiment of the present application, and the terminal may be the terminal in the foregoing embodiment. The terminal 300 may be a portable mobile terminal, such as a smart phone and a tablet computer. The terminal 300 may also be referred to by other names such as user equipment, portable terminal, and the like.

Generally, the terminal 300 includes: a processor 301 and a memory 302 .

The 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 use at least one hardware form among DSP (Digital Signal Processing, digital signal processing), FPGA (Field-Programmable Gate Array, field programmable gate array), and PLA (Programmable Logic Array, programmable logic array). accomplish. The processor 301 may also include a main processor and a coprocessor. The main processor is a processor used to process data in the wake-up state, also called CPU (Central Processing Unit, central processing unit); A low-power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is used for rendering and drawing the content that needs to be displayed on the display screen. In some embodiments, the processor 301 may further include an AI (Artificial Intelligence, artificial intelligence) processor, where the AI processor is used to process 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 disk storage devices, flash storage devices. In some embodiments, a non-transitory computer-readable storage medium in the memory 302 is used to store at least one instruction for execution by the processor 301 to implement a power battery temperature provided in the present application Control Method.

In some embodiments, the terminal 300 may also optionally include: a peripheral device interface 303 and at least one peripheral device. Specifically, the peripheral device includes: at least one of a radio frequency circuit 304 , a touch display screen 305 , a camera 306 , an audio circuit 307 , a positioning component 308 and a power supply 309 .

The peripheral device interface 303 may be used to connect at least one peripheral device related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, the processor 301, the memory 302 and the peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one of the processor 301, the memory 302 and the peripheral interface 303 or The two can be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The radio frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency, radio frequency) signals, also called electromagnetic signals. The radio frequency circuit 304 communicates with communication networks and other communication devices via electromagnetic signals. The radio frequency circuit 304 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 304 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and the like. 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: World Wide Web, Metropolitan Area Network, Intranet, various generations of mobile communication networks (2G, 3G, 4G and 5G), wireless local area network and/or WiFi (Wireless Fidelity, Wireless Fidelity) network. In some embodiments, the radio frequency circuit 304 may further include a circuit related to NFC (Near Field Communication, near field communication), which is not limited in this application.

The touch screen 305 is used to display UI (User Interface). The UI can include graphics, text, icons, video, and any combination thereof. The touch display 305 also has the ability to acquire touch signals on or over the surface of the touch display 305. The touch signal can be input to the processor 301 as a control signal for processing. Touch display 305 is used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or soft keyboard. In some embodiments, there may be one touch display screen 305, which is provided on the front panel of the terminal 300; in other embodiments, there may be at least two touch display screens 305, which are respectively provided on different surfaces of the terminal 300 or in a folded design. ; In still other embodiments, the touch display screen 305 may be a flexible display screen, which is arranged on a curved surface or a folding surface of the terminal 300 . Even, the touch display screen 305 can also be set as a non-rectangular irregular figure, that is, a special-shaped screen. The touch display screen 305 can be made of materials such as LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic Light-Emitting Diode, organic light emitting diode).

The camera assembly 306 is used to capture images or video. Optionally, the camera assembly 306 includes a front camera and a rear camera. Usually, the front camera is used to realize video calls or selfies, and the rear camera is used to realize the shooting of photos or videos. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth-of-field camera, and a wide-angle camera, so as to realize the fusion of the main camera and the depth-of-field camera to realize the background blur function, and the fusion of the main camera and the wide-angle camera Realize panoramic shooting and VR (Virtual Reality, virtual reality) shooting functions. In some embodiments, camera assembly 306 may also include a flash. The flash can be a single-color temperature flash or a dual-color temperature flash. Dual color temperature flash refers to the combination of warm flash and cool flash, which can be used for light compensation at different color temperatures.

The audio circuit 307 is used to provide an audio interface between the user and the terminal 300 . Audio circuitry 307 may include a microphone and speakers. The microphone is used to collect the sound waves of the user and the environment, convert the sound waves into electrical signals and input them to the processor 301 for processing, or to the radio frequency circuit 304 to realize voice communication. For the purpose of stereo collection or noise reduction, there may be multiple microphones, which are respectively set at different parts of the terminal 300. The microphones can also be array microphones or omnidirectional acquisition microphones. The speaker is used to convert the electrical signal from the processor 301 or the radio frequency circuit 304 into sound waves. The loudspeaker can be a traditional thin-film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert electrical signals into sound waves audible to humans, but also convert electrical signals into sound waves inaudible to humans for distance measurement and other purposes. In some embodiments, the audio circuit 307 may also include a headphone jack.

The positioning component 308 is used to locate the current geographic location of the terminal 300 to implement navigation or LBS (Location Based Service, location-based service). The positioning component 308 may be a positioning component based on the GPS (Global Positioning System, global positioning system) of the United States, the Beidou system of China or the Galileo system of Russia.

The power supply 309 is used to power various components in the terminal 300 . The power source 309 may be alternating current, direct current, disposable batteries or rechargeable batteries. When the power source 309 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. Wired rechargeable batteries are batteries that are charged through wired lines, and wireless rechargeable batteries are batteries that are charged through wireless coils. The rechargeable battery can also be used to support fast charging technology.

In some embodiments, the terminal 300 also includes one or more sensors 310 . The one or more sensors 310 include, but are not limited to, an acceleration sensor 311, a gyro sensor 312, a pressure sensor 313, a fingerprint sensor 314, an optical sensor 315, and a proximity sensor 316.

The acceleration sensor 311 can detect the magnitude of acceleration on the three coordinate axes of the coordinate system established by the terminal 300. For example, the acceleration sensor 311 can be used to detect the components of the gravitational acceleration on the three coordinate axes. The processor 301 can control the touch display screen 305 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 311. The acceleration sensor 311 can also be used for game or user movement data collection.

The gyroscope sensor 312 can detect the body direction and rotation angle of the terminal 300, and the gyroscope sensor 312 can cooperate with the acceleration sensor 311 to collect 3D (3 Dimensions, three-dimensional) actions of the user on the terminal 300. The processor 301 can implement the following functions according to the data collected by the gyro sensor 312: motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

The pressure sensor 313 may be disposed on the side frame of the terminal 300 and/or the lower layer of the touch display screen 305. When the pressure sensor 313 is disposed on the side frame of the terminal 300, it can detect the user's holding signal of the terminal 300, and perform left and right hand identification or quick operation according to the holding signal. When the pressure sensor 313 is disposed on the lower layer of the touch display screen 305, the operability controls on the UI interface can be controlled according to the user's pressure operation on the touch display screen 305. The operability controls include at least one of button controls, scroll bar controls, icon controls, and menu controls.

The fingerprint sensor 314 is used to collect the user's fingerprint to identify the user's identity according to the collected fingerprint. When the user's identity is identified as a trusted identity, the processor 301 authorizes the user to perform relevant sensitive operations, including unlocking the screen, viewing encrypted information, downloading software, making payments, and changing settings. The fingerprint sensor 314 may be provided on the front, back or side of the terminal 300. When the terminal 300 is provided with a physical button or a manufacturer's logo, the fingerprint sensor 314 can be integrated with the physical button or the manufacturer's logo.

Optical sensor 315 is used to collect ambient light intensity. In one embodiment, the processor 301 may control the display brightness of the touch display screen 305 according to the ambient light intensity collected by the optical sensor 315. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 305 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 305 is decreased. 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 called a distance sensor, is usually provided on the front 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 that the distance between the user and the front of the terminal 300 gradually decreases, the processor 301 controls the touch display screen 305 to switch from the bright screen state to the off screen state; when the proximity sensor 316 detects When the distance between the user and the front of the terminal 300 gradually increases, the processor 301 controls the touch display screen 305 to switch from the screen-off state to the screen-on state.

Those skilled in the art can understand that the structure shown in FIG. 3 does not constitute a limitation on the terminal 300, and may include more or less components than the one shown, or combine some components, or adopt different component arrangements.

Embodiment 4

In an exemplary embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, and when the program is executed by a processor, implements a power battery temperature control method as provided by 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. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples (a non-exhaustive list) of computer readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .

Program code embodied on a computer readable medium may be transmitted using any suitable 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 one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language—such as the "C" language or similar programming language. 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 (eg, using an Internet service provider through Internet connection).

Embodiment 5

In an exemplary embodiment, an application program product is also provided, which includes one or more instructions, and the one or more instructions can be executed by the processor 301 of the above-mentioned apparatus to complete the above-mentioned method for controlling the temperature of a power battery.

Although embodiments of the present invention have been disclosed above, they are not limited to the applications set forth in the specification and embodiments. It can be fully adapted to various fields suitable for the present invention. Additional modifications can be readily implemented by those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations herein shown and described, without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. a power battery temperature control method, is characterized in that, comprises: Obtain current vehicle speed and power battery related data; Determine the blower speed and the battery inlet air temperature required by the current battery system by using the current vehicle speed and data related to the power battery with the optimal working temperature of the battery system cell and the limit of the noise in the vehicle as the goal; The instruction is sent to the corresponding device through the rotational speed of the blower and the battery inlet air temperature required by the current battery system. 2 . The power battery temperature control method according to claim 1 , wherein the current power battery related data includes: current battery blower speed, current battery inlet air temperature, current battery system temperature, and current vehicle interior noise. 3 . value and the average charge and discharge power of the battery for X seconds. 3. A kind of power battery temperature control method according to claim 2, is characterized in that, obtaining the average charge and discharge power of the battery before X seconds, comprising: Obtain the average battery current of the first X seconds of the battery and the average battery voltage of the first X seconds of the battery; The average charge-discharge power of the battery for the first X seconds is determined by the average battery current for the first X seconds of the battery and the average battery voltage for the first X seconds of the battery. 4 . A power battery temperature control method according to claim 3 , wherein the current battery is determined by the current vehicle speed and power battery related data with the optimal operating temperature of the battery system cell and the limit of noise in the vehicle as the target. 5 . The required blower speed and battery inlet air temperature for the system, including: The current vehicle speed, current battery blower speed, current battery inlet air temperature, battery X-second average charge and discharge power, battery system cell optimum temperature and vehicle minimum noise value are obtained through a half-factor test to obtain the influence weight of the current battery thermal management system ; The blower speed and battery inlet air temperature required by the current battery system are determined by the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value, and the average charge and discharge power of the battery for X seconds. 5 . The power battery temperature control method according to claim 4 , wherein the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current interior noise value and the battery The X-second average charge and discharge power determines the blower speed and battery inlet air temperature required by the current battery system, including: According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature: (n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1) Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds. 6. A power battery temperature control system, comprising: The acquisition module is used to acquire the current vehicle speed and data related to the power battery; an analysis module, configured to determine the blower rotation speed and the battery inlet air temperature required by the current battery system with the optimal operating temperature of the battery system cells and the limit of the noise in the vehicle as the goals through the current vehicle speed and the power battery-related data; The execution module is configured to send an instruction to the corresponding device through the rotational speed of the blower and the temperature of the battery inlet air required by the current battery system. 7. A power battery temperature control system according to claim 6, wherein the analysis module is used for: The current vehicle speed, current battery blower speed, current battery inlet air temperature, battery X-second average charge and discharge power, battery system cell optimum temperature and vehicle minimum noise value are obtained through a half-factor test to obtain the influence weight of the current battery thermal management system ; The blower speed and battery inlet air temperature required by the current battery system are determined by the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value, and the average charge and discharge power of the battery for X seconds. 8. A power battery temperature control system according to claim 6, wherein the analysis module is used for: According to the influence weight of the current battery thermal management system, the current vehicle speed, the current temperature of the battery system, the current in-vehicle noise value and the average charge and discharge power of the battery for X seconds, the blower speed and battery power required by the current battery system are determined by formula (1). Wind temperature: (n, D)=a1*V+a2*Tb+a3*N+a4*P+a5 (1) Among them, n is the blower speed required by the current battery system, D is the battery inlet air temperature required by the current battery system, a1, a2, a3, a4 and a5 are the influence weights of the current battery thermal management system, Tb is the battery system The current temperature, N is the current interior noise value, and P is the average charge and discharge power of the battery for X seconds. 9. A terminal, characterized in that, comprising: one or more processors; memory for storing the one or more processor-executable instructions; wherein the one or more processors are configured to: A power battery temperature control method according to any one of claims 1 to 5 is executed. 10. A non-transitory computer-readable storage medium, characterized in that, when the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute any one of claims 1 to 5. Power battery temperature control method.

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