CN112285586A - BMS test method, device and system, simulation test equipment and storage medium - Google Patents
BMS test method, device and system, simulation test equipment and storage medium 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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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
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The embodiment of the application provides a BMS testing method, a BMS testing device, a BMS testing system, simulation testing equipment and a storage medium, and relates to the technical field of battery management. The method is applied to simulation test equipment, battery parameters and first runtime parameters of a real battery under a real working condition, which are recorded according to a time sequence, are stored in the simulation test equipment in advance, and the first runtime parameters are obtained by calculating the battery parameters, and the method comprises the following steps: sequentially outputting battery parameters to the BMS to be tested according to the time sequence; receiving a second runtime parameter calculated by the BMS to be tested according to the detected battery parameter; and comparing the first operation parameter with the second operation parameter to obtain a test result of the BMS to be tested. Therefore, the BMS is subjected to simulation test through the battery parameters under the real working condition and the first operation parameters, and the inaccuracy of the test result of the BMS caused by the difference between the data used during the simulation test and the data under the real working condition can be avoided.
Description
Technical Field
The application relates to the technical field of battery management, in particular to a BMS testing method, a BMS testing device, a BMS testing system, simulation testing equipment and a storage medium.
Background
At present, a Battery simulation System is used when a Battery Management System (BMS) is subjected to a simulation test. The battery simulation system is used for simulating a battery and outputting battery data to the BMS so as to complete the test of the BMS. However, most of the existing battery simulation systems are realized based on a battery model, the battery model is derived through a formula to generate battery data such as voltage, current and the like, and the battery data generated in the manner cannot reflect the data of the battery under the real working condition, so that the test result of the BMS is inaccurate.
Disclosure of Invention
An object of the application is to provide a BMS test method, device, system, simulation test equipment and storage medium, which can carry out simulation test on the BMS by adopting battery parameters and first runtime parameters under a real working condition, thereby avoiding inaccurate test results of the BMS due to the fact that data used during the simulation test are different from data under the real working condition.
The embodiment of the application can be realized as follows:
in a first aspect, an embodiment of the present application provides a BMS testing method, which is applied to a simulation testing device communicatively connected to a BMS to be tested, where a battery parameter and a first runtime parameter of a real battery under a real operating condition, which are recorded according to a time sequence, are stored in the simulation testing device in advance, where the first runtime parameter is obtained by calculating the battery parameter, and the method includes:
sequentially outputting the battery parameters to the BMS to be tested according to a time sequence;
receiving a second runtime parameter calculated by the BMS to be tested according to the detected battery parameter;
and comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested.
In an optional embodiment, the outputting the battery parameters to the BMS to be tested in sequence according to the time sequence includes:
and sequentially outputting the battery running state data to the BMS to be tested according to a time sequence.
In an optional embodiment, the battery parameters further include battery characteristic parameters, the battery characteristic parameters include at least any one of battery internal resistance, battery initial voltage, battery maximum capacity, and battery loss condition, and before the battery operating state data is sequentially output to the BMS to be tested in time sequence, the battery parameters are sequentially output to the BMS to be tested in time sequence, further including:
and performing initialization setting of the battery characteristic parameters on the BMS to be tested according to the battery characteristic parameters.
In an optional embodiment, the battery parameters further include a control instruction, and the outputting the battery parameters to the BMS to be tested in sequence according to a time sequence further includes:
and sending the control command to the BMS to be tested according to the time sequence.
In an optional embodiment, the parameter type corresponding to the first runtime parameter is the same as the parameter type corresponding to the second runtime parameter, and the parameter type corresponding to the first runtime parameter at least includes any one of three parameter types, i.e., a battery health value, an electric quantity value, and a remaining usage time estimation value.
In an alternative embodiment, the battery parameter and the first runtime parameter are obtained by:
when a real unmanned aerial vehicle flies, battery parameters and first operation parameters of a real battery for supplying power to the real unmanned aerial vehicle are recorded.
In a second aspect, an embodiment of the present application provides a BMS testing apparatus, which is applied to a simulation testing device communicatively connected to a BMS to be tested, where a battery parameter and a first runtime parameter of a real battery under a real operating condition, which are recorded according to a time sequence, are stored in the simulation testing device in advance, where the first runtime parameter is obtained by calculating the battery parameter, and the apparatus includes:
the simulation module is used for outputting the battery parameters to the BMS to be tested in sequence according to the time sequence;
the receiving module is used for receiving a second runtime parameter calculated by the BMS to be tested according to the detected battery parameter;
and the comparison module is used for comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested.
In a third aspect, an embodiment of the present application provides a BMS testing system, including a BMS to be tested and a simulation testing device, which are communicatively connected, wherein a battery parameter and a first runtime parameter of a real battery under a real operating condition, which are recorded according to a time sequence, are stored in the simulation testing device in advance, wherein the first runtime parameter is obtained by calculating the battery parameter,
the simulation test equipment is used for outputting the battery parameters to the BMS to be tested in sequence according to the time sequence;
the BMS to be tested is used for calculating a second runtime parameter according to the detected battery parameter and sending the second runtime parameter to the simulation test equipment;
the simulation testing equipment is further configured to receive the second runtime parameter sent by the to-be-tested BMS, and compare the first runtime parameter with the second runtime parameter to obtain a testing result of the to-be-tested BMS.
In a fourth aspect, embodiments of the present application provide a simulation test device, which includes a processor and a memory, where the memory stores machine executable instructions that can be executed by the processor, and the processor can execute the machine executable instructions to implement the BMS testing method according to any one of the foregoing embodiments.
In a fifth aspect, embodiments of the present application provide a storage medium having a computer program stored thereon, where the computer program, when executed by a processor, implements the BMS testing method according to any one of the preceding embodiments.
The BMS testing method, the device, the system, the simulation testing equipment and the storage medium provided by the embodiment of the application sequentially output battery parameters to the BMS to be tested according to the time sequence, and receive second run-time parameters calculated by the BMS to be tested according to the detected battery parameters, wherein the battery parameters are battery parameters of real batteries under real working conditions recorded in advance according to the time sequence; and comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested, wherein the first runtime parameter is a parameter calculated according to the battery parameter under a real working condition. Therefore, the simulation test can be performed on the BMS to be tested under the condition that the battery data under the real working condition are simulated, the test result with high accuracy is obtained, and the inaccuracy of the test result of the BMS caused by the fact that the data used in the simulation test is different from the data under the real working condition is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a block diagram of a BMS testing system provided by an embodiment of the present application;
FIG. 2 is a block diagram of a simulation test apparatus provided in an embodiment of the present application;
fig. 3 is a schematic flowchart of a BMS testing method provided by an embodiment of the present application;
fig. 4 is a schematic diagram illustrating acquisition of battery parameters and first runtime parameters according to an embodiment of the present disclosure;
fig. 5 is a block diagram of a BMS testing device provided in an embodiment of the present application.
Icon: 10-BMS test system; 100-simulation test equipment; 110-a memory; 120-a processor; 130-a communication unit; 200-BMS testing device; 210-a simulation module; 220-a receiving module; 230-alignment module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Before the inventor of the present application proposes the technical solution in the embodiment of the present application, a Battery simulation System is mostly implemented based on a Battery model, and the Battery model is derived through a formula, so as to generate Battery data such as voltage and current, and further perform a simulation test on a BMS (Battery Management System). Therefore, the accuracy of the conventional battery simulation system mainly depends on a battery model, a large number of repeated experiments and a large number of battery data acquisition are required to accurately establish the battery model, and the process is complicated. Moreover, the battery model cannot completely fit the battery data under the real working condition, and the battery under the real working condition cannot be simulated really. And if the simulated battery data is not in accordance with the real situation, the test result of the BMS is inaccurate.
Based on the above problems, the embodiment of the application provides a BMS testing method, device, system, simulation testing equipment and a storage medium, and a BMS is subjected to simulation testing by adopting battery parameters under a real working condition and first runtime parameters, so that the inaccuracy of a BMS testing result caused by the difference between data used during the simulation testing and data under the real working condition is avoided.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a block diagram illustrating a BMS testing system 10 according to an embodiment of the present disclosure. The BMS testing system 10 includes a simulation testing apparatus 100 communicatively connected and a BMS to be tested. The battery parameters and the first run-time parameters of the real battery under the real working condition, which are recorded according to the time sequence, are pre-stored in the simulation test equipment 100. And the first run-time parameter is calculated by the BMS used under the real working condition according to the battery parameter under the real working condition. The simulation testing apparatus 100 outputs the battery parameters to the BMS to be tested in time order to simulate the battery realistically. And after receiving the battery parameters, the BMS to be tested calculates second operation parameters according to the battery parameters and sends the second operation parameters to the BMS to be tested. The simulation testing device 100 compares the received second runtime parameter with the first runtime parameter, so as to obtain a testing result of the BMS to be tested. Therefore, the accuracy of the test result can be improved, and the problem that the accuracy of the obtained test result is low due to the fact that the data used in the test is not consistent with the real situation is avoided.
Referring to fig. 2, fig. 2 is a block diagram of a simulation test apparatus 100 according to an embodiment of the present disclosure. The simulation test apparatus 100 may be, but is not limited to, a computer or a server. The simulation test apparatus 100 includes a memory 110, a processor 120, and a communication unit 130. The elements of the memory 110, the processor 120 and the communication unit 130 are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines.
The memory 110 is used to store programs or data. The Memory 110 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.
The processor 120 is used to read/write data or programs stored in the memory 110 and perform corresponding functions. For example, the memory 110 stores therein the BMS testing device 200, and the BMS testing device 200 includes at least one software function module that can be stored in the memory 110 in the form of software or firmware (firmware). The processor 120 executes various functional applications and data processing, i.e., implements the BMS testing method in the embodiment of the present application, by running software programs and modules stored in the memory 110, such as the BMS testing device 200 in the embodiment of the present application.
The communication unit 130 is used for establishing a communication connection between the simulation test apparatus 100 and other communication terminals through a network, and for transceiving data through the network.
It should be understood that the structure shown in FIG. 2 is only a schematic structural diagram of the simulation test apparatus 100, and the simulation test apparatus 100 may also include more or less components than those shown in FIG. 2, or have a different configuration than that shown in FIG. 2. The components shown in fig. 2 may be implemented in hardware, software, or a combination thereof.
Referring to fig. 3, fig. 3 is a schematic flowchart of a BMS testing method according to an embodiment of the present application. The BMS testing method may be applied to the simulation testing apparatus 100 communicatively connected to the BMS to be tested. The simulation test device 100 prestores battery parameters and first runtime parameters of a real battery under a real working condition, which are recorded according to a time sequence, wherein the first runtime parameters are calculated from the battery parameters. The detailed procedure of the BMS testing method is described below.
And step S110, outputting the battery parameters to the BMS to be tested in sequence according to a time sequence.
And step S120, receiving a second run-time parameter calculated by the BMS to be tested according to the detected battery parameter.
In this embodiment, the battery parameters are recorded according to a time sequence under a real operating condition. And when the BMS to be tested is subjected to simulation test according to the battery parameters, the battery parameters are still output according to the time sequence. For example, under real operating conditions, the battery parameter S1 is recorded at time t1, the battery parameter S2 is recorded at time t2, and the battery parameter S3 is recorded at time t3, where t1 is earlier than t2, and t2 is earlier than t3, that is: t1< t2< t3, then when simulation testing is performed: the battery parameters S1 are output firstly, then the battery parameters S2 are output, and finally the battery parameters S3 are output.
Optionally, when the battery parameter is output, the battery parameter may also be output at intervals of the battery parameter under the real operating condition. Still taking the above example as an example, if the duration of the interval between t1 and t2 is a1 and the duration of the interval between t2 and t3 is a2, the battery parameter S2 may be output at the interval a1 after the battery parameter S1 is output, and similarly, the battery parameter S3 may be output at the interval a2 after the battery parameter S2 is output. Therefore, when the BMS to be tested is subjected to simulation test, the used data and the data output are completely the same as the data under the real condition, and the accuracy of the test result of the BMS to be tested is further ensured.
The BMS to be tested can calculate the second runtime parameter based on the received battery parameter according to a calculation strategy preset by the BMS to be tested. Optionally, the BMS to be tested may calculate the second runtime parameter in real time according to the received battery parameter, may also calculate the second runtime parameter at a preset time interval according to the received battery parameter, and may also calculate the second runtime parameter in other manners according to the received battery parameter.
Correspondingly, when the second runtime parameter is multiple, for example, a second runtime parameter is calculated at time t4, and a second runtime parameter is calculated at time t5, the BMS to be tested may send the calculated second runtime parameter to the simulation testing device 100 in real time; or after calculating the second runtime parameters corresponding to all the battery parameters used in the current simulation test, sending all the calculated second runtime parameters together to the simulation test device 100. The embodiment does not specifically limit the specific manner, and may be determined according to actual requirements.
And step S130, comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested.
After a second runtime parameter corresponding to the battery parameter of the real battery under the real working condition recorded according to the time sequence is obtained, the second runtime parameter is compared with the first runtime parameter pre-stored in the simulation testing device 100, and the comparison result is the testing result of the BMS to be tested.
Therefore, the battery model is not needed, the battery parameters of the real battery under the real working condition and the first operation parameters are only needed to be recorded, the real battery is not needed to be used subsequently under the real working condition, and the BMS to be tested can be subjected to repeated simulation. Through the mode, the number of times of real tests can be reduced, the efficiency is improved, the cost is reduced, and meanwhile, the accuracy of the obtained test result is high.
Optionally, in this embodiment, the battery parameter may include battery operating state data, where the battery operating state data is data of a real battery in an operating process. The battery operating state data may be sequentially output to the BMS to be tested in a time sequence while the battery parameters are output. The battery operating state data may include at least any one of a voltage, a current, and a battery temperature. To improve the accuracy of the battery simulation, the battery operating state data may include voltage, current, and battery temperature.
Since the battery characteristic parameter affects the second runtime parameter, that is, even if the battery operating state data is the same, if the battery characteristic parameter is different, the calculated second runtime parameter is also different. The battery characteristic parameter is used for representing the characteristics of the real battery. In order to avoid inaccurate test results due to neglecting the battery characteristic parameters, optionally, in this embodiment, the battery parameters may further include the battery characteristic parameters. When the battery parameters are output, the battery characteristic parameters may be initially set for the BMS to be tested according to the battery characteristic parameters.
Optionally, the simulation testing device 100 may also complete initialization setting of the battery characteristic parameters by directly sending the battery characteristic parameters to the BMS to be tested. It is understood that the initialization of the battery characteristic parameters may be accomplished in other ways.
The battery characteristic parameter may include at least any one of a battery internal resistance, a battery initial voltage, a battery maximum capacity, and a battery depletion condition. In order to accurately describe all the characteristics of the real battery, in one implementation of the present embodiment, the battery characteristic parameters may include internal battery resistance, initial battery voltage, maximum battery capacity, and battery depletion condition.
In the process of supplying power to the real battery, the BMS managing the real battery receives the control command sent by the battery power supply device and controls the real battery according to the received control command. If the control instruction is received, the calculated second runtime parameter is different. In order to avoid inaccurate test results due to neglect of the control command, optionally, in this embodiment, the battery acceptance number may further include the control command. The control command may be transmitted to the BMS to be tested in chronological order while the battery parameter is output. Wherein the control instruction may include at least any one of a demand for power by the battery powered device, and a control command for the battery.
Optionally, in practical applications, the battery parameter may include battery operating state data and a battery characteristic parameter, or include battery operating state data and a control instruction, or include battery operating state data, a battery characteristic parameter, and a control instruction.
After receiving the battery parameters provided by the simulation testing device 100, the to-be-tested BMS calculates the second runtime parameters according to the battery parameters. The parameter type corresponding to the first runtime parameter is the same as the parameter type corresponding to the second runtime parameter. The parameter type corresponding to the first runtime parameter at least comprises any one of three parameter types of a battery health value, an electric quantity value and a residual service life estimated value.
And finally, comparing the first running parameter with the second running parameter to obtain a simulation result of the BMS.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating acquisition of battery parameters and first runtime parameters according to an embodiment of the present disclosure. As an alternative embodiment, the battery parameter and the first run-time parameter may be obtained by the structure shown in fig. 4. The battery powered device in fig. 4 is a device that uses a real battery pack for power supply. The battery power supply equipment also comprises a control system used for controlling the operation of the battery power supply equipment and also used for controlling the battery pack through a BMS (battery management system) used by the battery power supply equipment. The condition data recorder may be disposed on the battery powered device and communicatively coupled to the BMS and the control system. And when the battery power supply equipment is powered on, the working condition data recorder records the battery characteristic parameters of the real battery pack. When the battery power supply equipment runs, the working condition data recorder records the battery running state data, the running parameters (equivalent to the first running parameters) and the control commands sent by the control system to the BMS in real time. The condition data recorder can record the data in a built-in memory and export the recorded data when the battery-powered equipment stops running.
Alternatively, the battery powered device may be determined according to actual requirements. For example, if a flight simulation test of an unmanned aerial vehicle battery needs to be performed, it can be determined that the battery power supply device is an unmanned aerial vehicle, and the control system is a flight control system. Therefore, through the working condition data recorder, when a real unmanned aerial vehicle flies, the battery parameters and the first operation parameters of a real battery for supplying power to the real unmanned aerial vehicle can be recorded.
Referring to fig. 1 and 4 again, the BMS testing method will be described below by way of example.
The simulation test device 100 may include a flight condition data parser and a result comparator. And importing the data exported by the working condition data recorder into a flight working condition data analyzer. The flight condition data analyzer analyzes the imported data to obtain data streams at different time points, and correspondingly distributes the data streams at the different time points to the BMS to be tested and the result comparator. Wherein the result comparer obtains the first runtime parameter.
The simulation testing device 100 may initialize the battery characteristic parameters of the BMS to be tested according to the battery characteristic parameters recorded at power-on.
During the simulation operation, the simulation testing apparatus 100 may also output battery operation state data (e.g., voltage, current, battery temperature) recorded during the flight to the BMS to be tested in a time sequence.
The simulation test device 100 outputs the recorded control instructions to the BMS to be tested in a time sequence, so as to simulate a flight control system to send the control instructions to the BMS to be tested.
The BMS to be tested obtains battery parameters through battery characteristic parameter initialization, voltage acquisition, current acquisition, temperature and CAN communication data reception, and calculates runtime parameters according to the obtained battery parameters to serve as the second runtime parameters.
The result comparator in the simulation testing device 100 receives the second runtime parameter sent by the BMS to be tested, and compares the second runtime parameter with the first runtime parameter obtained in advance to generate a simulation result report of the BMS to be tested, i.e., a testing result of the BMS to be tested.
Therefore, under the condition that no real object flight machine and a real object battery exist, the BMS to be tested can be subjected to simulation testing, so that the flying times of the real machine are reduced, the efficiency is improved, and the cost is reduced. And moreover, the data used in the simulation test can truly reflect the battery parameters under the flight working condition, so that the accuracy of the test result can be improved.
Optionally, the BMS to be tested can be a BMS used by the unmanned aerial vehicle with the flight fault, the used battery parameters and the first operation parameters are parameters of the unmanned aerial vehicle with the flight fault, and by the BMS testing method, the flight process can be reproduced on the ground, so that the state and the reaction of the BMS at any moment in the flight process can be conveniently analyzed.
Optionally, the BMS to be tested may be an improved BMS, and the used battery parameter and the first operating parameter may be parameters of abnormal flight numbers. Through the BMS testing method, multiple times of simulation flight tests can be carried out on abnormal flight frames so as to detect whether the improvement achieves the preset effect.
Optionally, the BMS to be tested may be a modified BMS, and the used battery parameter and the first runtime parameter may be parameters of a normal flight number. Through the BMS testing method, the data of the normal flying rack can be simulated, so that whether the improved function influences the normal operation of other functions or not can be detected. For example, if the modified BMS is subjected to simulation testing by using the parameters of the normal flying rack number, and the testing result shows that the effect achieved by the modified BMS is deteriorated, it can be shown that the modified function affects the normal operation of other functions.
In order to perform the corresponding steps in the above-described embodiment and each possible manner, an implementation manner of the BMS testing device 200 is given below, and optionally, the BMS testing device 200 may adopt the device structure of the simulation testing apparatus 100 shown in fig. 2. Further, referring to fig. 5, fig. 5 is a block diagram illustrating a BMS testing device 200 according to an embodiment of the present application. It should be noted that the basic principle and the technical effects of the BMS testing device 200 provided by the present embodiment are the same as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents in the above embodiments. The BMS testing device 200 may be applied to a simulation testing apparatus 100 communicatively connected to a BMS to be tested, and a battery parameter and a first runtime parameter of a real battery under a real working condition, which are recorded according to a time sequence, are pre-stored in the simulation testing apparatus 100, wherein the first runtime parameter is calculated from the battery parameter. The BMS testing device 200 may include a simulation module 210, a receiving module 220, and a comparison module 230.
The simulation module 210 is configured to sequentially output the battery parameters to the BMS to be tested according to a time sequence.
The receiving module 220 is configured to receive a second runtime parameter calculated by the to-be-tested BMS according to the detected battery parameter.
The comparison module 230 is configured to compare the first runtime parameter with the second runtime parameter, so as to obtain a test result of the BMS to be tested.
Optionally, in this embodiment, the battery parameter includes battery operating state data, the battery operating state data includes at least any one of voltage, current, and battery temperature, and the simulation module 210 is specifically configured to: and sequentially outputting the battery running state data to the BMS to be tested according to a time sequence.
Optionally, in this embodiment, the battery parameters further include battery characteristic parameters, the battery characteristic parameters include at least any one of a battery internal resistance, a battery initial voltage, a battery maximum capacity, and a battery loss condition, and before the battery operation state data is sequentially output to the BMS to be tested in a time sequence, the simulation module 210 is further specifically configured to: and performing initialization setting of the battery characteristic parameters on the BMS to be tested according to the battery characteristic parameters.
Optionally, in this embodiment, the battery parameter further includes a control instruction, and the simulation module 210 is further specifically configured to: and sending the control command to the BMS to be tested according to the time sequence.
Optionally, in this embodiment, the parameter type corresponding to the first runtime parameter is the same as the parameter type corresponding to the second runtime parameter, and the parameter type corresponding to the first runtime parameter at least includes any one of three parameter types, namely, a battery health value, an electric quantity value, and a remaining usage time estimation value.
Optionally, in this embodiment, the battery parameter and the first runtime parameter are obtained by: when a real unmanned aerial vehicle flies, battery parameters and first operation parameters of a real battery for supplying power to the real unmanned aerial vehicle are recorded.
Alternatively, the modules may be stored in the memory 110 shown in fig. 2 in the form of software or Firmware (Firmware) or may be fixed in an Operating System (OS) of the emulation testing device 100, and may be executed by the processor 120 in fig. 2. Meanwhile, data, codes of programs, and the like required to execute the above-described modules may be stored in the memory 110.
Embodiments of the present application also provide a readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the BMS testing method.
In summary, the embodiment of the present application provides a BMS testing method, device, system, simulation testing device, and storage medium, which sequentially output battery parameters to a BMS to be tested according to a time sequence, and receive a second runtime parameter calculated by the BMS to be tested according to the detected battery parameters, wherein the battery parameters are battery parameters of a real battery under a real working condition, which are recorded in advance according to the time sequence; and comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested, wherein the first runtime parameter is a parameter calculated according to the battery parameter under a real working condition. Therefore, the simulation test can be performed on the BMS to be tested under the condition that the battery data under the real working condition are simulated, the test result with high accuracy is obtained, and the inaccuracy of the test result of the BMS caused by the fact that the data used in the simulation test is different from the data under the real working condition is avoided.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A BMS testing method is applied to simulation testing equipment in communication connection with a BMS to be tested, battery parameters and first runtime parameters of a real battery under real working conditions recorded according to a time sequence are stored in the simulation testing equipment in advance, wherein the first runtime parameters are obtained by calculating the battery parameters, and the method comprises the following steps:
sequentially outputting the battery parameters to the BMS to be tested according to a time sequence;
receiving a second runtime parameter calculated by the BMS to be tested according to the detected battery parameter;
and comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested.
2. The method of claim 1, wherein the battery parameters include battery operating state data including at least any one of voltage, current and battery temperature, and the outputting the battery parameters to the BMS to be tested in sequence according to the time sequence includes:
and sequentially outputting the battery running state data to the BMS to be tested according to a time sequence.
3. The method according to claim 2, wherein the battery parameters further include battery characteristic parameters including at least any one of battery internal resistance, battery initial voltage, battery maximum capacity, and battery loss condition, and wherein the battery parameters are sequentially output to the BMS to be tested in time order before the battery operation state data is sequentially output to the BMS to be tested in time order, further comprising:
and performing initialization setting of the battery characteristic parameters on the BMS to be tested according to the battery characteristic parameters.
4. The method according to claim 2 or 3, wherein the battery parameters further include control instructions, the outputting the battery parameters to the BMS to be tested in chronological order further comprises:
and sending the control command to the BMS to be tested according to the time sequence.
5. The method according to claim 1, wherein the parameter type corresponding to the first runtime parameter is the same as the parameter type corresponding to the second runtime parameter, and the parameter type corresponding to the first runtime parameter at least includes any one of three parameter types, namely a battery health value, an electric quantity value and a remaining usage time estimation value.
6. The method of claim 1, wherein the battery parameter and the first runtime parameter are obtained by:
when a real unmanned aerial vehicle flies, battery parameters and first operation parameters of a real battery for supplying power to the real unmanned aerial vehicle are recorded.
7. A BMS testing apparatus applied to a simulation testing device communicatively connected to a BMS to be tested, the simulation testing device having pre-stored therein battery parameters and first runtime parameters of a real battery under real conditions recorded in time sequence, wherein the first runtime parameters are calculated from the battery parameters, the apparatus comprising:
the simulation module is used for outputting the battery parameters to the BMS to be tested in sequence according to the time sequence;
the receiving module is used for receiving a second runtime parameter calculated by the BMS to be tested according to the detected battery parameter;
and the comparison module is used for comparing the first runtime parameter with the second runtime parameter to obtain a test result of the BMS to be tested.
8. The BMS test system is characterized by comprising a BMS to be tested and a simulation test device which are in communication connection, wherein battery parameters and first runtime parameters of a real battery under real working conditions are stored in the simulation test device in advance and recorded according to a time sequence, the first runtime parameters are obtained by calculating the battery parameters,
the simulation test equipment is used for outputting the battery parameters to the BMS to be tested in sequence according to the time sequence;
the BMS to be tested is used for calculating a second runtime parameter according to the detected battery parameter and sending the second runtime parameter to the simulation test equipment;
the simulation testing equipment is further configured to receive the second runtime parameter sent by the to-be-tested BMS, and compare the first runtime parameter with the second runtime parameter to obtain a testing result of the to-be-tested BMS.
9. A simulation test device comprising a processor and a memory, the memory storing machine executable instructions executable by the processor to implement the BMS testing method of any of claims 1-5.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the BMS testing method of any one of claims 1-5.
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