CN110907838A - Battery working condition simulation test method, electronic equipment and computer readable storage medium - Google Patents
Battery working condition simulation test method, electronic equipment and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses a battery working condition simulation test method, electronic equipment and a computer readable storage medium, wherein the method comprises the following steps: acquiring a working condition file when responding to a battery working condition simulation instruction; according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery; calculating physical performance parameters of the detected battery according to the first detection data; calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operating condition and the numerical change information of the speed change; and analyzing the cycle electrical performance and cycle endurance performance of the detected battery according to the physical performance parameters and the simulated driving mileage of the detected battery. The invention can obtain the cycle electrical property of the battery and the corresponding simulated driving mileage, is convenient for people to more intuitively know the performance change of the battery, and can use the driving mileage as other application indexes of the battery test to expand the application range of the battery test.
Description
Technical Field
The invention relates to the technical field of battery testing, in particular to a battery working condition simulation measuring method, electronic equipment and a computer readable storage medium.
Background
As a vehicle powered by an on-board power supply, the performance of an electric vehicle greatly depends on the performance of a battery as the power. The detection of the performance of the power battery is the key point in the research of the development and industrialization of the electric automobile, and the evaluation of the performance of the power battery will influence the development and popularization of the electric automobile.
In practical application, because the driving mileage can more intuitively reflect the continuous driving capability provided by the power battery to the automobile, people usually pay attention to the driving mileage of the automobile, but in the current detection standard technology of the power automobile, the battery is generally charged and discharged by adopting a working condition method of time-constant current or time-constant power, the performance of the power battery is detected, the attenuation conditions of relevant performances such as capacity, energy, resistance and the like are mainly considered, the driving mileage which can be reached by the automobile cannot be directly detected, and after the simulation performances are obtained, people cannot intuitively know how the continuous driving capability provided by the battery to the automobile can change along with the simulation performances.
Moreover, at present, the running mileage of an automobile is usually counted by calculating the cycle number of the working conditions of the battery and the mileage equivalent to the last working condition under a single working condition cycle, but under a composite working condition, the battery is often required to be charged and discharged for multiple times under each working condition for detection, and if the simulated accumulated mileage is required to be used as a switching reference during the working condition switching, the current working condition method cannot be adopted, and the simulated continuous driving capability provided by the battery corresponding to the simulation performance of the power battery in real time can not be detected.
Disclosure of Invention
The embodiment of the invention provides a battery working condition simulation measuring method, electronic equipment and a computer readable storage medium, which introduce the vehicle speed and vehicle speed variable value change information into the simulation working condition to carry out real-time simulation test on the driving mileage, can output the real-time corresponding simulation driving mileage while simulating and testing the cycle electrical property of the battery working condition, is convenient for people to obtain the performance change of the battery more intuitively, and can use the driving mileage as other application indexes of the battery test to expand the application range of the battery test.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a battery operating condition simulation test method, including:
when a battery working condition simulation instruction is responded, a working condition file is obtained, wherein the working condition file at least comprises charging and discharging information, vehicle speed change information under the actual running working condition of an automobile and vehicle speed change value change information;
according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery in real time, wherein the first detection data at least comprise the voltage and the current of the detected battery;
calculating physical performance parameters of the detected battery in real time according to the first detection data, wherein the physical performance parameters at least comprise the capacity and the energy of the detected battery;
calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operating condition and the numerical value change information of the speed change of the automobile;
and analyzing the cycle electrical performance and cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated driving mileage.
Further, the calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operation condition and the speed change value change information of the automobile includes:
determining a first time point for changing the vehicle speed variable value each time according to the vehicle speed variable value changing information;
if the current time point is the first time point, reading a vehicle speed value of the current time point from the vehicle speed change information under the actual operation condition of the vehicle;
taking the vehicle speed value of the current time point as the current numerical value of the vehicle speed variable;
calculating the simulated driving mileage of the automobile in real time according to the following formula:
S＝S1+ν×t
wherein S is the simulated driving mileage of the automobile, t is the mileage refreshing time interval, S1And v is a speed variable, and the value of v is changed according to the change of the current value of the speed variable.
Further, the charging and discharging information at least includes information that the current or power used for charging and discharging the detected battery changes with time, and then, the first time point for changing the vehicle speed variable value each time is determined, specifically:
determining a second time point at which the current or power for charging and discharging the detected battery changes each time;
and taking the second time point as the first time point.
Further, the mileage refresh time interval t is determined according to the following formula:
wherein t (unit: s) is the mileage refresh time interval, and f (unit: Hz) is the maximum frequency of the charging and discharging equipment.
Further, before responding to the battery operating condition simulation command, the method further includes:
determining simulation modes of battery working conditions, wherein the simulation modes comprise a single working condition simulation mode and a composite working condition simulation mode;
under the single working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out according to a single charge and discharge mode; and under the composite working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out in combination according to different charge and discharge modes.
Further, before the cyclic charge and discharge of the battery to be detected, the method further comprises the following steps:
setting limiting parameters of working condition operation;
before analyzing the cycle electrical performance and the cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated mileage, the method further comprises the following steps:
and detecting limiting parameters of the working condition operation and controlling the operation of the working condition simulation.
Further, the detecting a limiting parameter of the operating condition and controlling the operation of the operating condition simulation includes:
detecting a limiting parameter of working condition operation, and judging whether the limiting parameter reaches an operation limiting value;
if the limiting parameter reaches the operation limiting value, controlling the working condition simulation to be finished;
and if the limiting parameter does not reach the operation limiting value, controlling the working condition simulation to continue to operate.
Further, before the cyclic charge and discharge of the battery to be detected, the method further comprises the following steps:
adjusting the state of charge of the detected battery to a specified state of charge;
and standing the detected battery.
In a second aspect, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the battery operating condition simulation test method according to any one of the first aspect is implemented.
In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, and when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the battery operating condition simulation testing method according to any one of the first aspect.
According to the battery working condition simulation measuring method, the electronic equipment and the computer readable storage medium, the vehicle speed and vehicle speed variable value change information are introduced into the simulation working condition to carry out real-time simulation test on the driving mileage, the real-time corresponding simulation driving mileage can be output while the cycle electrical performance of the battery working condition is simulated and tested, people can know the performance change of the battery more intuitively, the driving mileage can be used as other application indexes of the battery test, and the application range of the battery test is expanded.
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Fig. 1 is a flowchart of a simulation test method for battery operating conditions according to an embodiment of the present invention;
FIG. 2 is a flowchart of one embodiment of step S140 in the embodiment of FIG. 1;
FIG. 3 is a flowchart of one embodiment of the step of determining the first point in time for each change in the vehicle speed variable value in the embodiment of FIG. 2;
fig. 4 is a flowchart of a battery working condition simulation test method according to a second embodiment of the present invention;
fig. 5 is a flowchart of an embodiment of step S460 in the embodiment shown in fig. 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example one
The battery working condition simulation test method provided by the embodiment is implemented in a simulation stage in a battery test, and is not limited to the implementation manner of other test stages. In the battery test, the simulation stage is to utilize the battery working condition simulation platform to simulate the working condition environment of the real vehicle during operation, place the detected battery in the simulation platform, utilize the relevant equipment to carry out charge-discharge control on the detected battery so as to simulate the charge-discharge condition of the battery in actual operation, place the detected battery in the simulation working condition to carry out charge-discharge cycle test, thereby obtaining the cycle characteristic of the battery in the working condition environment. The charging and discharging conditions of the actual work of the battery are recorded in the working condition file, and the charging and discharging conditions of the actual work of the battery can be obtained by loading data of the working condition file through the equipment.
The battery working condition simulation test method provided by this embodiment may be executed by a simulation test device, the simulation test device may be implemented in a software and/or hardware manner, and the simulation test device may be composed of one or two or more physical entities, for example, may be an upper computer, a device simulating each working condition environment, a plurality of entity devices such as a switching power supply, or may be an integrated entity device integrating the upper computer, the device simulating each working condition environment, the switching power supply, and the like.
In the battery simulation test method provided by this embodiment, the vehicle speed variable and the mileage variable need to be established in the simulation test device to calculate the simulated mileage, specifically, the vehicle speed variable and the mileage variable may be established in a simulated upper computer and the simulated mileage may be calculated. In the prior art, the working condition (for example, the time-current working condition or the time-power working condition) merely defines what time period and how much current/power is used for charging and discharging the detected battery, while the working condition of the embodiment further defines when the vehicle speed variable is subjected to numerical modification, and for example, the working condition of the embodiment can be named as the time-current-vehicle speed working condition or the time-power-vehicle speed working condition.
Referring to fig. 1, fig. 1 is a flowchart of a battery operating condition simulation test method according to an embodiment of the present invention, and in particular, the embodiment of the present invention provides a battery operating condition simulation test method, including:
s110, when a battery working condition simulation instruction is responded, a working condition file is obtained, wherein the working condition file at least comprises charging and discharging information, vehicle speed change information under the actual operation working condition of the vehicle and vehicle speed change value change information;
the battery working condition simulation instruction is used for indicating simulation test equipment to carry out simulation test on the detected battery; the working condition file is a file recorded with the working state of the automobile in the driving process and used for enabling the simulation test equipment to simulate the working environment of the automobile, wherein relevant data can be collected and recorded by the real automobile or data of a standard file; the charge and discharge information is used for enabling the simulation test equipment to simulate the charge and discharge condition of the battery in actual work to carry out cyclic charge and discharge on the detected battery; the vehicle speed variable value changing information is used for controlling the change of the vehicle speed variable value of the simulation platform; the vehicle speed change information during the actual running condition of the vehicle refers to the information that the vehicle speed in the running process of the vehicle changes along with the time change in the condition file.
S120, according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery in real time, wherein the first detection data at least comprise the voltage and the current of the detected battery;
specifically, the simulation test equipment simulates the charge-discharge condition of the battery in actual work to carry out cyclic charge-discharge on the detected battery, and the simulation test equipment at least detects the voltage and current change condition of the detected battery in the working condition in real time to serve as first detection data for calculating the physical performance parameters of the battery.
S130, calculating physical performance parameters of the detected battery in real time according to the first detection data, wherein the physical performance parameters at least comprise the capacity and the energy of the detected battery;
specifically, the first detection data at least includes the voltage and the current of the detected battery, and the capacity and the energy of the detected battery can be calculated in real time according to the voltage and the current of the detected battery.
Optionally, the capacity of the detected battery may be calculated in real time according to formula (1):
Q＝∫I×t (1)
wherein Q (unit: Ah) is the capacity of the detected battery, I (unit: A) is the current in the real-time first detection data, and t (unit: s) is the working condition simulation running time;
the energy of the detected battery can be calculated in real time according to the formula (2):
W＝∫U×I×t (2)
wherein W (unit: W) is the capacity of the detected battery, U (unit: V) is the voltage in the first detection data, I (unit: A) is the current in the first detection data, and t (unit: s) is the time of the working condition simulation operation.
In the above formulas (1) and (2), the unit of each parameter is only a default unit, and in the specific implementation, the calculation unit may be changed according to the situation, and the calculation unit is not limited in this embodiment.
S140, calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operation condition and the speed change numerical value change information;
it should be noted that, in implementing the battery simulation testing method provided in this embodiment, the vehicle speed variable and the mileage variable need to be established in the simulation testing device to calculate the simulated mileage, specifically, the vehicle speed variable and the mileage variable may be established in a simulated upper computer and the simulated mileage is calculated.
Specifically, when the simulation test equipment simulates the actual working condition to carry out charge-discharge simulation test on the detected battery, the real-time vehicle speed can be read from the vehicle speed change information of the working condition file; according to the vehicle speed variable value changing information, the vehicle speed variable value can be changed when the vehicle speed variable value needs to be changed, and the value changing size is determined by the vehicle speed changing information, so that the value size of the vehicle speed variable is determined in real time.
And determining the numerical value of the speed variable in real time according to the speed change information of the automobile under the actual operation condition and the numerical value change information of the speed variable, so that the simulated driving mileage of the automobile can be calculated in real time.
S150, analyzing the cycle electrical performance and the cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated driving mileage.
The cycle electrical performance refers to the service life, durability and other performances of the battery in the working condition cycle work, and the cycle endurance refers to the endurance mileage which can be provided for the automobile by the battery in the working condition cycle work. According to the physical performance parameters of the detected battery and the simulated driving mileage, the cycle characteristics at least including the capacity and the energy attenuation of the battery and the attenuation condition of the corresponding driving mileage can be obtained, the cycle electrical performance and the corresponding cycle endurance performance of the detected battery in the working condition environment are analyzed and evaluated, and further, the most suitable battery can be selected after different batteries are subjected to simulation tests.
Referring to fig. 2, fig. 2 is a flowchart illustrating an embodiment of step S140 in the embodiment illustrated in fig. 1; further, the calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operation condition and the speed change value change information of the automobile includes:
s141, determining a first time point for changing the vehicle speed variable value each time according to vehicle speed variable value changing information;
s142, if the current time point is the first time point, reading a vehicle speed value of the current time point from the vehicle speed change information under the actual operation working condition of the vehicle;
s143, taking the vehicle speed value at the current time point as a current numerical value of a vehicle speed variable;
s144, calculating the simulated driving mileage of the automobile in real time according to the following formula:
S＝S1+ν×t (3)
wherein S is the simulated driving mileage of the automobile, t is the mileage refreshing time interval, S1And v is a speed variable, and the value of v is changed according to the change of the current value of the speed variable.
In the above formula (3), the unit of each parameter is only a default unit, and in the specific implementation, the calculation unit may be changed according to the situation, and the calculation unit is not limited in this embodiment.
Optionally, the first time point of changing the vehicle speed variable value each time may be set as required, but in order that the calculated driving range can be fit to the actual working condition, the first time point of changing the vehicle speed variable value each time should be as same as the time point of the vehicle speed change when the actual vehicle is driven, so as to increase the reliability of the simulated driving range.
Referring to fig. 3, fig. 3 is a flowchart illustrating an embodiment of the step of determining the first time point of each change of the vehicle speed variable value in the embodiment shown in fig. 2; further, the charging and discharging information at least includes information that the current or power used for charging and discharging the detected battery changes with time, and then, the first time point for changing the vehicle speed variable value each time is determined, specifically:
s310, determining a second time point of change of current or power for charging and discharging the detected battery each time;
and S320, taking the second time point as the first time point.
Further, the mileage refresh time interval t is determined according to the following formula:
wherein t (unit: s) is the mileage refresh time interval, and f (unit: Hz) is the maximum frequency of the charging and discharging equipment.
It should be noted that the mileage refresh time interval t determines the numerical refresh frequency of each parameter in the formula (3), and affects the accuracy of the mileage calculation, for example, if t is set to 3 seconds, and the vehicle speed variable is changed three times within a certain period of 3 seconds, the calculation of the mileage in the formula (3) only uses the numerical value of the vehicle speed variable changed once, and the obtained simulated mileage error is relatively large, and the actual mileage cannot be well fitted.
When the mileage refreshing time interval t is the change time interval with the minimum vehicle speed variable, the numerical value of the vehicle speed variable changed each time can be fully utilized, and the calculated driving mileage is more accurate. When the detected battery is charged and discharged, the vehicle speed and the current or power for charging and discharging the detected battery are synchronously changed, and the minimum change time interval of the current or power for charging and discharging the detected battery is the change time interval with the minimum vehicle speed variable, namely the time interval for charging and discharging the detected battery under the maximum frequency of the charging and discharging equipment.
Specifically, a second time point at which the current or power for charging and discharging the detected battery changes each time is taken as the first time point, the numerical value of the vehicle speed variable is changed, and the driving mileage is calculated in real time in each t through a formula (3).
Optionally, when the automobile actually runs, the response period of the electric control of the motor is 1ms, in the simulation test, the charging and discharging periods of the battery are also controlled to be in the millisecond level, f can be 1000Hz, and t can be 1 ms.
Further, before responding to the battery operating condition simulation command, the method further includes:
determining simulation modes of battery working conditions, wherein the simulation modes comprise a single working condition simulation mode and a composite working condition simulation mode;
under the single working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out according to a single charge and discharge mode; and under the composite working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out in combination according to different charge and discharge modes.
It should be noted that, in general, the charging and discharging modes of the battery include constant current charging and discharging, constant power charging and discharging, and the like, the battery to be detected is subjected to constant current charging and discharging with a specific magnitude in a specific time period under the time-current-vehicle speed working condition, and the battery to be detected is subjected to constant power charging and discharging with a specific magnitude in a specific time period under the time-power-vehicle speed working condition.
Specifically, when the simulation test is performed on the detected battery, whether the simulation test is a single working condition simulation mode or a composite working condition simulation mode can be set according to the test requirement, and when the composite working condition simulation mode is selected, the parameters for switching the working conditions can be further set.
Example two
Referring to fig. 4, fig. 4 is a flowchart of a battery operating condition simulation test method according to a second embodiment of the present invention; the present embodiment is embodied on the basis of the first embodiment. The battery working condition simulation test method provided by the embodiment comprises the following steps:
s410, when a battery working condition simulation instruction is responded, a working condition file is obtained, wherein the working condition file at least comprises charging and discharging information, vehicle speed change information under the actual running working condition of the vehicle and vehicle speed variable value change information;
s420, setting limiting parameters of working condition operation;
it should be noted that the limiting parameter of the operating condition operation may be any one or any combination of parameters such as a battery temperature, a battery cell voltage, a battery state of charge SOC, a battery charge-discharge capacity, or a simulated driving mileage.
Optionally, the limiting parameter of the operating condition operation may be a protection parameter for a protection battery simulation test, or may be a condition parameter for switching the operating condition during the composite operating condition simulation.
Optionally, in the composite working condition simulation mode, the simulation display mileage is a limiting parameter of the working condition operation, and is used as a switching standard of the working condition switching.
S430, according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery in real time, wherein the first detection data at least comprises the voltage and the current of the detected battery;
s440, calculating physical performance parameters of the detected battery in real time according to the first detection data, wherein the physical performance parameters at least comprise the capacity and the energy of the detected battery;
s450, calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operation condition and the speed change numerical value change information;
and S460, detecting limiting parameters of the working condition operation and controlling the working condition simulation operation.
S470, analyzing the cycle electrical performance and the cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated driving mileage
Referring to FIG. 5, FIG. 5 is a flowchart illustrating an embodiment of step S460 of the embodiment shown in FIG. 4; further, the detecting a limiting parameter of the operating condition and controlling the operation of the operating condition simulation includes:
s461, detecting a limiting parameter of working condition operation, and judging whether the limiting parameter reaches an operation limiting value;
s462, if the limiting parameter reaches the operation limiting value, controlling the working condition simulation to be finished;
and S463, if the limiting parameter does not reach the operation limiting value, controlling the working condition simulation to continue to operate.
It should be noted that, when the limiting parameter reaches the operation limiting value, the control of the simulation of the working condition is finished, only the end of the simulation of the current working condition is controlled, and the execution step after the end is not limited. For example, the simulation of the current time-current-vehicle speed condition is finished, and the control of the whole simulation test is finished, or the control is switched to the simulation of the next condition.
Further, on the basis of the simulation test method for the battery operating condition provided in the first embodiment or the second embodiment, before the battery to be tested is cyclically charged and discharged, the method further includes:
adjusting the state of charge of the detected battery to a specified state of charge;
and standing the detected battery.
Specifically, the state of charge of the detected battery is adjusted to a specified state of charge, so that the detected battery starts to perform cyclic charge and discharge under the specific state of charge, and the detected battery can be fully charged according to national standards or enterprise standards and then discharged to the specified state of charge. Standing the detected battery to prevent the polarization of the battery monomer from influencing the next test, and ensuring the elimination of the polarization of the battery monomer, wherein the standing time of the battery is 30-60 minutes generally and can be adjusted according to actual conditions.
In specific implementation, an embodiment of the present invention provides a battery working condition simulation test method, including: when a battery working condition simulation instruction is responded, a working condition file is obtained, wherein the working condition file at least comprises charging and discharging information, vehicle speed change information under the actual running working condition of an automobile and vehicle speed change value change information; according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery in real time, wherein the first detection data at least comprise the voltage and the current of the detected battery; calculating physical performance parameters of the detected battery in real time according to the first detection data, wherein the physical performance parameters at least comprise the capacity and the energy of the detected battery; calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operating condition and the numerical value change information of the speed change of the automobile; and analyzing the cycle electrical performance and cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated driving mileage.
The technical scheme of the embodiment can introduce the speed and the vehicle speed variable numerical value change information into the simulation working condition to carry out real-time simulation test on the traveled mileage, can output the simulated traveled mileage corresponding to the real time while carrying out simulation test on the cycle electrical property of the battery working condition, and is convenient for people to more intuitively know the property change of the battery.
EXAMPLE III
The second embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the battery condition simulation test method provided in any of the above embodiments is implemented.
The electronic device may include, but is not limited to, a processor, a memory.
Specifically, the electronic device may include one or more processors and memories, and the electronic device may be a computer, a mobile phone, a tablet, or the like.
The electronic device of the embodiment includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor implements the steps of the battery condition simulation test method provided by any of the above embodiments when executing the computer program.
Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the electronic device.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the electronic device and that connects the various parts of the overall electronic device using various interfaces and wires.
The memory may be used to store the computer programs and/or modules, and the processor may implement various functions of the electronic device by running or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the integrated module/unit of the electronic device can be stored in a computer readable storage medium if it is implemented in the form of software functional unit and sold or used as a stand-alone product. Based on such understanding, all or part of the processes in the battery condition simulation test method provided by any of the above embodiments may be implemented by a computer program instructing related hardware to complete, where the computer program may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the battery condition simulation test method provided by any of the above embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
Example four
The fourth embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, and when the computer program runs, the device where the computer-readable storage medium is located is controlled to execute the battery working condition simulation test method provided in any one of the above embodiments.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A battery working condition simulation test method is characterized by comprising the following steps:
when a battery working condition simulation instruction is responded, a working condition file is obtained, wherein the working condition file at least comprises charging and discharging information, vehicle speed change information under the actual running working condition of an automobile and vehicle speed change value change information;
according to the charging and discharging information, carrying out cyclic charging and discharging on the detected battery, and detecting first detection data of the detected battery in real time, wherein the first detection data at least comprise the voltage and the current of the detected battery;
calculating physical performance parameters of the detected battery in real time according to the first detection data, wherein the physical performance parameters at least comprise the capacity and the energy of the detected battery;
calculating the simulated driving mileage of the automobile in real time according to the speed change information of the automobile under the actual operating condition and the numerical value change information of the speed change of the automobile;
and analyzing the cycle electrical performance and cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated driving mileage.
2. The battery working condition simulation test method according to claim 1, wherein the step of calculating the simulated driving mileage of the vehicle in real time according to the vehicle speed change information and the vehicle speed change value change information during the actual operation working condition of the vehicle comprises the steps of:
determining a first time point for changing the vehicle speed variable value each time according to the vehicle speed variable value changing information;
if the current time point is the first time point, reading a vehicle speed value of the current time point from the vehicle speed change information under the actual operation condition of the vehicle;
taking the vehicle speed value of the current time point as the current numerical value of the vehicle speed variable;
calculating the simulated driving mileage of the automobile in real time according to the following formula:
S＝S1+v×t
wherein S is the simulated driving mileage of the automobile, t is the mileage refreshing time interval, S1And v is a speed variable, and the value of v is changed according to the change of the current value of the speed variable.
3. The battery working condition simulation test method according to claim 2, wherein the charge-discharge information at least includes information that a current or power for charging and discharging the detected battery changes with time, and then the first time point at which the vehicle speed variation value is changed each time is determined, specifically:
determining a second time point at which the current or power for charging and discharging the detected battery changes each time;
and taking the second time point as the first time point.
4. The battery condition simulation test method of claim 2, wherein the mileage refresh time interval t is determined to have a magnitude according to the following formula:
wherein t (unit: s) is the mileage refresh time interval, and f (unit: Hz) is the maximum frequency of the charging and discharging equipment.
5. The battery condition simulation test method of claim 1, before responding to the battery condition simulation command, further comprising:
determining simulation modes of battery working conditions, wherein the simulation modes comprise a single working condition simulation mode and a composite working condition simulation mode;
under the single working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out according to a single charge and discharge mode; and under the composite working condition simulation mode, the cyclic charge and discharge of the detected battery are carried out in combination according to different charge and discharge modes.
6. The battery condition simulation test method according to claim 1, further comprising, before the cyclically charging and discharging the battery to be tested:
setting limiting parameters of working condition operation;
before analyzing the cycle electrical performance and the cycle endurance performance of the detected battery according to the physical performance parameters of the detected battery and the simulated mileage, the method further comprises the following steps:
and detecting limiting parameters of the working condition operation and controlling the operation of the working condition simulation.
7. The battery condition simulation test method according to claim 6, wherein the detecting the limiting parameter of the condition operation and controlling the condition simulation operation comprise:
detecting a limiting parameter of working condition operation, and judging whether the limiting parameter reaches an operation limiting value;
if the limiting parameter reaches the operation limiting value, controlling the working condition simulation to be finished;
and if the limiting parameter does not reach the operation limiting value, controlling the working condition simulation to continue to operate.
8. The battery condition simulation test method according to claims 1 to 7, further comprising, before the cyclic charge and discharge of the battery to be tested:
adjusting the state of charge of the detected battery to a specified state of charge;
and standing the detected battery.
9. An electronic device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the battery condition simulation testing method according to any one of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the battery operating condition simulation testing method according to any one of claims 1 to 8.
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