CN114879045A - Method, device, terminal and storage medium for testing verification of charging remaining time - Google Patents
Method, device, terminal and storage medium for testing verification of charging remaining time Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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Abstract
The invention discloses a test method, a test device, a test terminal and a test storage medium for verifying charging remaining time, which belong to the technical field of power battery tests and comprise the following steps: responding to a test instruction for verifying the charging remaining time, simulating the battery charging real-time parameters by the testing device and feeding back the battery charging real-time parameters to the battery management system until the charging is finished; and acquiring the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirement. The patent provides a method for verifying the relation between BMS request current and actual charging current by big data and experimental data; the testing device is provided with a battery dynamic parameter calculation model and simulates a real vehicle charging environment, and the testing method is used for testing the precision function of the charging remaining time.
Description
Technical Field
The invention discloses a testing method, a testing device, a testing terminal and a testing storage medium for verifying charging remaining time, and belongs to the technical field of power battery testing.
Background
With the popularization of electric automobiles, more and more people select electric automobiles, and most people among people buying electric automobiles can be concerned about whether the charging speed and the charging estimated time of the electric automobiles are accurate or not, and particularly cannot receive the condition that the actual time is far greater than the estimated time, so that the accuracy of the charging estimated time under various different working conditions is verified, and the problems are found and provided for developers to improve. However, in actual real vehicle testing, it is difficult to create conditions for charging under some extreme conditions and to test all working conditions, so that simulation of a real and extreme charging environment by a testing device is a good solution.
The charging remaining time estimation function is an important component of a battery management system, the requirement for the accuracy estimation function of the charging remaining time of the electric vehicle is higher and higher at present, but the estimation time is often different from the actual time in the charging process of actual tests, and the tests can be verified only after the later loading stage of a project. How to conveniently and quickly simulate the charging environment under the actual working condition in a laboratory plays a more important role in verifying the estimation precision of the charging remaining time.
Disclosure of Invention
The invention aims to solve the problem that the charging remaining time can only be tested on the real vehicle level in the prior art, and provides a method, a device, a terminal and a storage medium for testing the charging remaining time, wherein the technical scheme of the invention is as follows:
according to a first aspect of the embodiments of the present invention, there is provided a method for testing a verification charging remaining time, including:
responding to a test instruction for verifying the charging remaining time, simulating the battery charging real-time parameters by the testing device and feeding back the battery charging real-time parameters to the battery management system until the charging is finished;
and acquiring the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirement.
Preferably, the test device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and the test device comprises:
setting initial battery parameters of the battery and feeding back the initial battery parameters to a battery management system, wherein the initial battery parameters comprise: battery starting actual SOC, battery cell voltage, cooling strategy of the vehicle and battery starting charging temperature.
Preferably, the test device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and the test device comprises:
acquiring a charging current conversion model corresponding to the charging condition characteristics of the vehicle, and injecting the charging current conversion model into a testing device;
the testing device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and comprises the following steps:
the testing device simulates the real-time parameters of battery charging based on the charging current conversion model and feeds the parameters back to the battery management system until the charging is finished.
Preferably, the obtaining of the charging current conversion model corresponding to the vehicle charging condition characteristic includes:
acquiring vehicle charging data based on a big data statistical method;
classifying the vehicle charging data based on the vehicle charging condition characteristics;
and aiming at the vehicle charging data corresponding to the vehicle charging working condition characteristics, constructing a charging current conversion model corresponding to the vehicle charging working condition characteristics.
Preferably, the vehicle charging condition characteristics include: the vehicle charging data at least comprises the following parameters, working condition relevance, time relevance and vehicle working condition relevance: the charging method comprises the steps of charging time period, charging pile working conditions, charging pile output current, battery management system request current, battery pack current and vehicle working conditions.
Preferably, the classifying the vehicle charging data based on the vehicle charging condition characteristics includes:
determining charging current related parameters according to the vehicle charging data;
and classifying the charging current related parameters according to the charging condition characteristics of the vehicle.
According to a second aspect of the embodiments of the present invention, there is provided a verification charging remaining time test apparatus, including:
the charging simulation module is used for responding to a testing instruction for verifying the charging remaining time, and the testing device simulates the real-time charging parameters of the battery and feeds the parameters back to the battery management system until the charging is finished;
and the test analysis module is used for acquiring the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirement.
According to a third aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when processed and executed, implements the verification charging remaining time test method of the first aspect of embodiments of the present invention.
According to a fourth aspect of the embodiments of the present invention, there is provided a terminal, including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method for testing the remaining time of the verification charge according to the first aspect of the embodiment of the present invention is performed.
According to a fifth aspect of the embodiments of the present invention, there is provided a verification charging remaining time test system, including: the terminal is electrically connected with the testing device and the battery management system respectively.
According to a sixth aspect of embodiments of the present invention, there is provided an application program product, which, when running on a terminal, causes the terminal to perform the method of the first aspect of embodiments of the present invention.
The invention has the beneficial effects that:
the patent provides a method for verifying the relation between BMS request current and actual charging current by big data and experimental data; the testing device is provided with a battery dynamic parameter calculation model and simulates a real vehicle charging environment, and the testing method is used for testing the precision function of the charging remaining time.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
FIG. 1 is a flow diagram illustrating a method for verifying a charge remaining time test in accordance with an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a method of verifying a charge remaining time test in accordance with an exemplary embodiment;
FIG. 3 is a flow diagram illustrating a method of verifying a charge remaining time test in accordance with an exemplary embodiment;
FIG. 4 is a partial flow diagram illustrating a method for verifying a charge remaining time test in accordance with an exemplary embodiment;
FIG. 5 is a block diagram illustrating an exemplary configuration of a verification charge remaining time test method apparatus according to an exemplary embodiment;
fig. 6 is a schematic block diagram of a terminal structure shown in accordance with an example embodiment.
FIG. 7 is a block diagram illustrating a schematic structure of a verification charging remaining time test system according to an exemplary embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall 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., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides a method for testing the charging remaining time, which is realized by a terminal, wherein the terminal can be a smart phone, a desktop computer or a notebook computer and the like, and at least comprises a CPU and the like.
Example one
Fig. 1 is a flowchart illustrating a verification charging remaining time test method for use in a terminal according to an exemplary embodiment, the method including the steps of:
step S101, responding to a test instruction for verifying the charging remaining time, simulating the charging real-time parameters of the battery by using a testing device and feeding the parameters back to a battery management system until the charging is finished;
step S102, obtaining the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirements.
Preferably, the test device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and the test device comprises:
setting initial battery parameters of the battery and feeding back the initial battery parameters to a battery management system, wherein the initial battery parameters comprise: battery starting actual SOC, battery cell voltage, cooling strategy of the vehicle and battery starting charging temperature.
Preferably, the test device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and the test device comprises:
acquiring a charging current conversion model corresponding to the charging condition characteristics of the vehicle, and injecting the charging current conversion model into a testing device;
the testing device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and comprises the following steps:
the testing device simulates the real-time parameters of battery charging based on the charging current conversion model and feeds the parameters back to the battery management system until the charging is finished.
Preferably, the obtaining of the charging current conversion model corresponding to the vehicle charging condition characteristic includes:
acquiring vehicle charging data based on a big data statistical method;
classifying the vehicle charging data based on the vehicle charging condition characteristics;
and aiming at the vehicle charging data corresponding to the vehicle charging working condition characteristics, constructing a charging current conversion model corresponding to the vehicle charging working condition characteristics.
Preferably, the vehicle charging condition characteristics include: the vehicle charging data at least comprises the following parameters, working condition relevance, time relevance and vehicle working condition relevance: the charging method comprises the steps of charging time period, charging pile working conditions, charging pile output current, battery management system request current, battery pack current and vehicle working conditions.
Preferably, the classifying the vehicle charging data based on the vehicle charging condition characteristics includes:
determining charging current related parameters according to the vehicle charging data;
and classifying the charging current related parameters according to the charging condition characteristics of the vehicle.
Example two
Fig. 2-3 are flowcharts illustrating a verification charging remaining time test method for use in a terminal according to an exemplary embodiment, the method including the steps of:
step S201, vehicle charging data are obtained based on a big data statistical method, a charging current conversion model corresponding to the vehicle charging condition characteristics is constructed, and the specific contents are as follows:
because in the actual charging, the actual charging current to the battery is not equal to the output current of the charging pile, the main influencing factors may be the following reasons:
1. the output capacity of the charging pile is limited, and is smaller than the charging capacity requested by the BMS;
2. the charging pile is connected to a national power grid, and the actual output capacity of the charging pile fluctuates due to the existence of the peak power utilization period;
3. the output capacity of the charging pile is not stable, so that the output current fluctuates;
4. when other vehicles operate the charging gun to enter or exit the charging process, the charging capacity of the charging pile for the vehicles is influenced;
5. in the charging process of the vehicle, the vehicle power consumption equipment also has influence on the actual charging current, such as large power devices like an air conditioner and the like.
Therefore, the actual output current of the charging pile is converted into the actual charging current through the model, so that the charging condition characteristics of the vehicle can be simulated more truly, as shown in fig. 4, vehicle charging data is obtained based on a big data statistical method, and the vehicle charging data at least comprises the following components: the charging method comprises the steps of charging time period, charging pile working conditions, charging pile output current, battery management system request current, battery pack current and vehicle working conditions.
The vehicle charging condition characteristics include: the method comprises the steps of determining correlation among parameters, correlation of working conditions, correlation of time and correlation of vehicle working conditions, and then determining charging current related parameters according to vehicle charging data; the charging current related parameters are classified according to the charging working condition characteristics of the vehicle, and the specific classification conditions are as follows:
1. classifying according to the relation between the battery management system request current and the actual charging current, namely, the relevance between parameters;
2. classifying according to the time period of charging, namely time relevance;
3. classify according to filling the electric pile operating mode: if the multi-gun charging pile has the condition that other vehicles are charging or the output power of the charging pile is lower, the condition of full-load charging of the vehicles cannot be met, namely the working condition relevance;
4. and (4) according to the condition that whether the high-power electric appliance is started or not when the vehicle is charged, namely the relevance of the working condition of the vehicle.
The charging big data and the charging test data are classified according to the working conditions, the relation between the request current and the actual charging current of the battery management system is arranged, a charging current conversion model is set up according to the arranged relation, the charging current conversion model can output according to the request current of the battery management system and the working condition of the charging pile to be simulated, the output result is the actual charging current, the battery data calculation module calculates various parameters of the battery according to the actual charging current and outputs the parameters to the battery simulation device, and the parameters are converted into real sampling signals which can be recognized by the battery management system. Therefore, the simulation of the real vehicle charging environment can be realized through the method, the test environment is closer to the real environment, and the test result has higher referential property.
Usually, in order to test some limit conditions, the test device can also directly edit the actual charging current curve, so as to simulate the situation that the actual charging current changes randomly. Therefore, some conditions which are difficult to occur in actual charging can be simulated, and the requirements of extreme charging tests are met.
Step S202, setting initial battery parameters of the battery and feeding back the parameters to a battery management system, wherein the specific contents are as follows:
the initial battery parameters of the battery include: the method comprises the steps of battery initial actual SOC, battery monomer voltage, a cooling strategy of a vehicle and battery initial charging temperature, wherein the battery initial SOC and the battery monomer voltage are in one-to-one correspondence, the battery monomer voltage is the voltage of the battery after the battery is stood for a long time, and the monomer voltages of different battery core types are different from the actual SOC correspondence.
A battery data calculation module in the testing device outputs according to the set initial battery parameters, and when the vehicle is not in a charging state and has no charging current, the value output by the battery parameter calculation module is the initial set value, and the current value is 0;
the battery simulator in the testing device converts battery parameters output by the battery data calculation module into signals which CAN be identified by the battery management system, for example, different temperature values are converted into resistance values output by a resistance output device in the battery simulator and output by corresponding temperature sensor models, the monomer voltage is output by the monomer simulator and corresponds to actual voltage, and the current signals are realized by a high-precision voltage output source outputting voltage values corresponding to currents of current sensors of corresponding models or simulating current value messages sent by the current sensors in the modes of CAN messages and the like. And (4) entering a charging remaining time precision testing stage after the initial parameters of the battery are set, and executing the next step.
Step S203, in response to the test instruction for verifying the charging remaining time, the testing device simulates the real-time charging parameters of the battery and feeds the parameters back to the battery management system until the charging is finished.
The simulation charging pile in the connection testing device is a charging device for simulating charging for a vehicle, the battery management system and the simulation charging pile interact with each other, and the battery management system sends a charging request current to the simulation charging pile.
The simulation fills electric pile output charging current, and here fills electric pile output current can be the direct BMS current request value of forwardding, also can be through the current value of some processings, then transmits the conversion model of charging current, according to the difference of the selected operating mode of conversion model of charging current, and the different actual charging current of model output gives the battery data calculation module in the testing arrangement. Or in order to verify more severe working conditions, the current request sent to the charging pile by the BMS can be not considered, an actual charging current curve can be set by self, the test requirement for realizing more severe working conditions is met, and the current value is also input to the battery data calculation module.
A battery data calculation module in the testing device calculates parameters such as real-time temperature, real-time voltage, real-time current, real-time SOC of the battery according to the output current value of the charging pile and the initial battery parameter set in step 202, where SOC is the charge amount of the battery, and the current value is the current value directly forwarded and input. The voltage and SOC parameters will gradually increase with the increase of the charging process until the battery reaches a full state of charge. The battery simulation device in the testing device receives the data output by the battery data calculation module and converts the data into signals which can be identified by the battery management system.
Step S204, obtaining the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirements, wherein the specific contents are as follows:
the battery management system estimates the charging remaining time by analyzing and collecting a series of signal information, and gradually updates the charging remaining time according to the collected signals along with the increase of the charging process, continuously judges whether the battery reaches full charge, once the full charge condition is reached, the total voltage or SOC reaches the full charge condition, the battery management system controls to stop the charging process, and the charging remaining time is sent to be 0 minute.
Whether the estimation precision of the BMS charging remaining time meets the design requirement is analyzed by comparing the actual charging remaining time in the whole process with the curve change of the estimated charging remaining time of the battery management system:
1. reading data recorded in the test process;
2. and observing and comparing the charging remaining time reported by the BMS with the actual time from the moment to the completion of charging, judging whether the difference value is within +/-Xmins (X is the performance requirement for calculating the charging remaining time of the vehicle), and if so, determining that the precision of the calculated charging remaining time of the BMS meets the design requirement.
The patent provides a method for acquiring the relation between BMS request current and actual charging current through big data and experimental data; the testing device is provided with a battery dynamic parameter calculation model and simulates a real vehicle charging environment, and the testing method is used for testing the precision function of the charging remaining time.
EXAMPLE III
Fig. 5 is a block diagram illustrating a verification charging remaining time test apparatus according to an exemplary embodiment, the apparatus including:
the charging simulation module 310 is configured to respond to a test instruction for verifying the remaining charging time, and the test device simulates the real-time battery charging parameters and feeds the parameters back to the battery management system until charging is finished;
the test analysis module 320 is configured to obtain the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and determine whether the estimated accuracy of the charging remaining time of the battery management system meets the design requirement.
The patent provides a method for acquiring the relation between BMS request current and actual charging current through big data and experimental data; the testing device is provided with a battery dynamic parameter calculation model and simulates a real vehicle charging environment, and the testing method is used for testing the precision function of the charging remaining time.
Example four
Fig. 6 is a block diagram of a terminal according to an embodiment of the present application, where the terminal may be the terminal in the foregoing embodiment. The terminal 400 may be a portable mobile terminal such as: smart phones, tablet computers. The terminal 400 may also be referred to by other names such as user equipment, portable terminal, etc.
In general, the terminal 400 includes: a processor 401 and a memory 402.
In some embodiments, the terminal 400 may further optionally include: a peripheral interface 403 and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 404, touch screen display 405, camera 406, audio circuitry 407, positioning components 408, and power supply 409.
The peripheral interface 403 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 401 and the memory 402. In some embodiments, processor 401, memory 402, and peripheral interface 403 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 401, the memory 402 and the peripheral interface 403 may be implemented on a separate chip or circuit board, which is not limited by this embodiment.
The Radio Frequency circuit 404 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 404 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 404 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 404 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 so forth. The radio frequency circuitry 404 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 404 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The touch display screen 405 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch display screen 405 also has the ability to capture touch signals on or over the surface of the touch display screen 405. The touch signal may be input to the processor 401 as a control signal for processing. The touch screen display 405 is used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the touch display screen 405 may be one, providing the front panel of the terminal 400; in other embodiments, the touch screen display 405 may be at least two, respectively disposed on different surfaces of the terminal 400 or in a folded design; in still other embodiments, the touch display 405 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 400. Even more, the touch screen display 405 can be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The touch screen 405 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.
The camera assembly 406 is used to capture images or video. Optionally, camera assembly 406 includes a front camera and a rear camera. Generally, a front camera is used for realizing video call or self-shooting, and a rear camera is used for realizing shooting of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and each of the rear cameras is any one of a main camera, a depth-of-field camera and a wide-angle camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting function and a VR (Virtual Reality) shooting function. In some embodiments, camera assembly 406 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The audio circuit 407 is used to provide an audio interface between the user and the terminal 400. The audio circuit 407 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 401 for processing, or inputting the electric signals to the radio frequency circuit 404 for realizing voice communication. For the purpose of stereo sound collection or noise reduction, a plurality of microphones may be provided at different portions of the terminal 400. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 401 or the radio frequency circuit 404 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 407 may also include a headphone jack.
The positioning component 408 is used to locate the current geographic position of the terminal 400 for navigation or LBS (Location Based Service). The Positioning component 408 can be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.
The power supply 409 is used to supply power to the various components in the terminal 400. The power source 409 may be alternating current, direct current, disposable or rechargeable. When the power source 409 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 400 also includes one or more sensors 410. The one or more sensors 410 include, but are not limited to: acceleration sensor 411, gyro sensor 412, pressure sensor 413, fingerprint sensor 414, optical sensor 415, and proximity sensor 416.
The acceleration sensor 411 may detect the magnitude of acceleration in three coordinate axes of the coordinate system established with the terminal 400. For example, the acceleration sensor 411 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 401 may control the touch display screen 405 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 411. The acceleration sensor 411 may also be used for acquisition of motion data of a game or a user.
The gyro sensor 412 may detect a body direction and a rotation angle of the terminal 400, and the gyro sensor 412 may cooperate with the acceleration sensor 411 to acquire a 3D (3 dimensional) motion of the user with respect to the terminal 400. From the data collected by the gyro sensor 412, the processor 401 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.
The pressure sensor 413 may be disposed on a side bezel of the terminal 400 and/or a lower layer of the touch display screen 405. When the pressure sensor 413 is disposed at a side frame of the terminal 400, a user's grip signal to the terminal 400 can be detected, and left-right hand recognition or shortcut operation can be performed according to the grip signal. When the pressure sensor 413 is disposed at the lower layer of the touch display screen 405, the operability control on the UI interface can be controlled according to the pressure operation of the user on the touch display screen 405. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.
The fingerprint sensor 414 is used for collecting a fingerprint of the user to identify the identity of the user according to the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, processor 401 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. The fingerprint sensor 414 may be disposed on the front, back, or side of the terminal 400. When a physical key or vendor Logo is provided on the terminal 400, the fingerprint sensor 414 may be integrated with the physical key or vendor Logo.
The optical sensor 415 is used to collect the ambient light intensity. In one embodiment, the processor 401 may control the display brightness of the touch display screen 405 based on the ambient light intensity collected by the optical sensor 415. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 405 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 405 is turned down. In another embodiment, the processor 401 may also dynamically adjust the shooting parameters of the camera assembly 406 according to the ambient light intensity collected by the optical sensor 415.
A proximity sensor 416, also known as a distance sensor, is typically disposed on the front side of the terminal 400. The proximity sensor 416 is used to collect the distance between the user and the front surface of the terminal 400. In one embodiment, when the proximity sensor 416 detects that the distance between the user and the front surface of the terminal 400 gradually decreases, the processor 401 controls the touch display screen 405 to switch from the bright screen state to the dark screen state; when the proximity sensor 416 detects that the distance between the user and the front surface of the terminal 400 gradually becomes larger, the processor 401 controls the touch display screen 405 to switch from the breath screen state to the bright screen state.
Those skilled in the art will appreciate that the configuration shown in fig. 6 is not intended to be limiting of terminal 400 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
EXAMPLE five
In an exemplary embodiment, there is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a verification charging remaining time test method as provided in all inventive embodiments of the present application.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. 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 (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
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 any of a variety of 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, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
EXAMPLE six
In an exemplary embodiment, an application program product is also provided, which includes one or more instructions executable by the processor 401 of the apparatus to perform the method for testing remaining charging time.
EXAMPLE seven
Fig. 7 is a block diagram illustrating a schematic structure of a verification charging remaining time test system according to an exemplary embodiment, the system including:
the method comprises the following steps: the terminal is electrically connected with the testing device and the battery management system respectively.
The terminal may manually or preset a command, and the command is transmitted to the model or the lower computer to control the device to complete various operations, which have been described in the fourth embodiment and are not described again. The test device comprises: the simulation charging pile is used for simulating charging equipment for charging a vehicle, simulating connection or disconnection of a charging gun, performing signal interaction with a battery management system, requesting a charging current value according to the battery management system and outputting a charging pile output current; simulating other ECUs, simulating other controllers on the vehicle, and simulating interaction between various working conditions of the vehicle and the battery management system; the charging current conversion model is used for converting the actual output current of the charging pile into the actual charging current, so that the charging condition characteristics of the vehicle can be simulated more truly; the battery parameter calculation module can realize dynamic calculation of battery parameters according to the charging and discharging current, the vehicle working condition and the set initial battery and environment parameters; a battery simulator for converting battery parameters recognizable by a battery management system, comprising: the battery management system comprises a voltage simulator, a current simulator and a temperature simulator, wherein the voltage simulator converts a dynamic voltage simulation value calculated by a battery parameter calculation module into a real voltage value which can be identified by the battery management system according to a terminal set voltage, and the current simulator converts a current set by the terminal into an actual charging and discharging current which can be identified by the battery management system.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. A test method for verifying charging remaining time is characterized by comprising the following steps:
responding to a test instruction for verifying the charging remaining time, simulating the battery charging real-time parameters by the testing device and feeding back the battery charging real-time parameters to the battery management system until the charging is finished;
and acquiring the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process, and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirement.
2. The test method for verifying the charging remaining time as claimed in claim 1, wherein the test device simulates real-time parameters of battery charging and feeds the real-time parameters back to the battery management system until the charging is finished, and the method comprises the following steps:
setting initial battery parameters of the battery and feeding back the initial battery parameters to a battery management system, wherein the initial battery parameters comprise: a battery starting actual SOC, a battery cell voltage, a cooling strategy of the vehicle, and a battery starting charge temperature.
3. The test method for verifying the charging remaining time as claimed in claim 1, wherein the test device simulates real-time parameters of battery charging and feeds the real-time parameters back to the battery management system until the charging is finished, and the method comprises the following steps:
acquiring a charging current conversion model corresponding to the charging condition characteristics of the vehicle, and injecting the charging current conversion model into a testing device;
the testing device simulates the real-time parameters of battery charging and feeds the parameters back to the battery management system until the charging is finished, and comprises the following steps:
the testing device simulates the real-time parameters of battery charging based on the charging current conversion model and feeds the parameters back to the battery management system until the charging is finished.
4. The test method for verifying the charging remaining time according to claim 3, wherein the obtaining of the charging current conversion model corresponding to the vehicle charging condition characteristics comprises:
acquiring vehicle charging data based on a big data statistical method;
classifying the vehicle charging data based on the vehicle charging condition characteristics;
and aiming at the vehicle charging data corresponding to the vehicle charging working condition characteristics, constructing a charging current conversion model corresponding to the vehicle charging working condition characteristics.
5. The method for testing the charging remaining time according to claim 3, wherein the vehicle charging condition characteristic comprises: the vehicle charging data at least comprises the following parameters, working condition relevance, time relevance and vehicle working condition relevance: the charging method comprises the steps of charging time period, charging pile working conditions, charging pile output current, battery management system request current, battery pack current and vehicle working conditions.
6. The method for testing the charging remaining time according to claim 3, wherein the classifying the vehicle charging data based on the vehicle charging condition characteristics comprises:
determining charging current related parameters according to the vehicle charging data;
and classifying the charging current related parameters according to the charging condition characteristics of the vehicle.
7. A verification charging remaining time test apparatus, comprising:
the charging simulation module is used for responding to a testing instruction for verifying the charging remaining time, and the testing device simulates the real-time charging parameters of the battery and feeds the parameters back to the battery management system until the charging is finished;
and the test analysis module is used for acquiring the estimated charging remaining time data of the battery management system and the actual charging remaining time in the whole process and judging whether the estimated precision of the charging remaining time of the battery management system meets the design requirement.
8. A computer-readable storage medium, on which a computer program is stored, which, when being processed and executed, implements the verification charging remaining time test method according to any one of claims 1 to 6.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the verification charging remaining time test method of any one of claims 1 to 6 is performed.
10. A system for testing remaining time after charge verification, comprising: the terminal is electrically connected with the testing device and the battery management system respectively.
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