CN112415404B - Battery pack testing method and battery pack testing device - Google Patents
Battery pack testing method and battery pack testing device Download PDFInfo
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- CN112415404B CN112415404B CN202011191398.3A CN202011191398A CN112415404B CN 112415404 B CN112415404 B CN 112415404B CN 202011191398 A CN202011191398 A CN 202011191398A CN 112415404 B CN112415404 B CN 112415404B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
- H04L63/205—Network architectures or network communication protocols for network security for managing network security; network security policies in general involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a testing method of a battery pack, which comprises the following steps: acquiring test requirement information, wherein the test requirement information comprises security requirement information, instruction setting information and directory information to be tested; generating a security access rule based on the security requirement information; generating a communication instruction based on the instruction setting information; generating content to be tested based on the catalog information to be tested; and executing corresponding test operation based on the security access rule, the communication instruction and the content to be tested. By designing the testing device of the battery pack, the testing content can be configured according to the actual testing requirements of a user in the testing process, rather than independently developing a specific testing program for each battery testing project, so that the testing freedom degree is greatly improved, and the testing efficiency is improved; furthermore, different communication protocols are compatible in the test process, so that the test compatibility is greatly improved.
Description
Technical Field
The present invention relates to the field of battery testing technologies, and in particular, to a method and an apparatus for testing a battery pack.
Background
With the continuous development of technology, more and more products are created, and in order to meet the requirements of more living scenes and work, more and more devices are independently operated, and the devices are independently operated and need batteries to supply power to the devices, so the requirements and the applications of the batteries are also more and more.
For application scenarios requiring large energy consumption, a single battery cannot meet normal requirements, for example, for a new energy automobile, a battery pack needs to be configured to meet requirements of the new energy automobile in terms of energy density, energy output efficiency and the like, and a special battery management system is required for managing the battery pack.
In the prior art, the battery pack needs to be subjected to the offline test after the assembly is completed, and more test items are involved in the battery management system, such as insulation detection, relay control detection, current detection, DTC fault reading detection, clearing detection, cell voltage and temperature reporting detection and the like.
However, in the practical application process, on one hand, because of the different testing standards and testing specifications of different battery testing projects, the communication modes adopted by the different battery testing projects are also different; on the other hand, the existing test program cannot realize user-defined configuration, has poor compatibility to test items, and the problems cause that technicians need to design corresponding test upper computers for each test item, so that the test cost is greatly improved, and the test efficiency of the technicians is reduced.
Disclosure of Invention
In view of the foregoing, the present invention is directed to a testing method and a testing device for a battery pack, which avoid at least some of the above-mentioned drawbacks of the prior art by generating corresponding test contents according to the test requirements of users and making compatible with different communication protocols.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a testing method of a battery pack, which comprises the following steps: acquiring test requirement information, wherein the test requirement information comprises security requirement information, instruction setting information and directory information to be tested; generating a security access rule based on the security requirement information; generating a communication instruction based on the instruction setting information; generating content to be tested based on the catalog information to be tested; and executing corresponding test operation based on the security access rule, the communication instruction and the content to be tested.
Preferably, the security requirement information includes mask information and security content, and the generating the security access rule based on the security requirement information includes: generating a first security access rule according to a first preset rule based on the mask information and the security content; generating a second security access rule based on the mask information and the security content according to a second preset rule; and taking the first security access rule and the second security access rule as the security access rules.
Preferably, the instruction setting information includes communication format setting information and instruction setting information, and the generating the communication instruction based on the instruction setting information includes: acquiring a preset communication format template; processing the preset communication format template based on the communication format information to obtain a processed communication format; acquiring instruction list information; generating instruction information based on the instruction setting information and the instruction list information; and generating the communication instruction based on the processed communication format and the instruction information.
Preferably, the generating the content to be tested based on the directory information to be tested includes: extracting test frame information and corresponding test requirement information from the catalog information to be tested; acquiring basic configuration information based on the test frame information; and generating the content to be tested based on the test requirement information and the basic configuration information.
Preferably, the test method further comprises: acquiring a protocol setting operation; determining a communication protocol based on the protocol setup operation; and executing the test operation according to the communication protocol.
Another object of the present invention is to provide a testing apparatus for a battery pack, the testing apparatus comprising: the system comprises an acquisition module, a test module and a test module, wherein the acquisition module is used for acquiring test requirement information, and the test requirement information comprises safety requirement information, instruction setting information and directory information to be tested; the first generation module is used for generating a security access rule based on the security requirement information; the second generation module is used for generating a communication instruction based on the instruction setting information; the third generation module is used for generating content to be detected based on the directory information to be detected; and the testing module is used for executing corresponding testing operation based on the security access rule, the communication instruction and the content to be tested.
Preferably, the security requirement information includes mask information and security content, and the first generation module includes: the first security rule unit is used for generating a first security access rule according to a first preset rule based on the mask information and the security content; a second security rule unit, configured to generate a second security access rule according to a second preset rule based on the mask information and the security content; and the rule generating unit is used for taking the first security access rule and the second security access rule as the security access rules.
Preferably, the instruction setting information includes communication format setting information and instruction setting information, and the second generating module includes: the template acquisition unit is used for acquiring a preset communication format template; the processing unit is used for processing the preset communication format template based on the communication format information to obtain a processed communication format; a list acquisition unit configured to acquire instruction list information; an instruction information generating unit configured to generate instruction information based on the instruction setting information and the instruction list information; and the instruction generation unit is used for generating the communication instruction based on the processed communication format and the instruction information.
Preferably, the third generating module includes: the second extraction unit is used for extracting test frame information and corresponding test requirement information from the catalog information to be tested; the first configuration unit is used for acquiring basic configuration information based on the test framework information; and the content to be tested generating unit is used for generating the content to be tested based on the test requirement information and the basic configuration information.
Preferably, the test apparatus further comprises a protocol selection module, the protocol selection module comprising: an operation acquisition unit configured to acquire a protocol setting operation; a protocol determination unit configured to determine a communication protocol based on the protocol setting operation; and the testing unit is used for executing the testing operation according to the communication protocol.
By designing the testing device of the battery pack, the testing content can be configured according to the actual testing requirements of a user in the testing process, rather than independently developing a specific testing program for each battery testing project, so that the testing freedom degree is greatly improved, and the testing efficiency is improved; furthermore, different communication protocols are compatible in the test process, so that the test compatibility is greatly improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate and explain the invention and are not to be construed as limiting the invention. In the drawings:
fig. 1 is a flowchart of a specific implementation of a method for testing a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic diagram of generating content to be tested in the testing method of the battery pack according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a testing device for a battery pack according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, an embodiment of the present invention provides a method for testing a battery pack, including:
s10) obtaining test requirement information, wherein the test requirement information comprises safety requirement information, instruction setting information and directory information to be tested;
s20) generating a security access rule based on the security requirement information;
s30) generating a communication instruction based on the instruction setting information;
s40) generating content to be tested based on the catalog information to be tested;
s50) executing corresponding test operation based on the security access rule, the communication instruction and the content to be tested.
In order to solve the technical problem that in the prior art, the battery pack needs to be subjected to targeted independent development according to different projects, which is time-consuming and labor-consuming, in one possible implementation, a test method for automatically executing a corresponding personalized test function according to the actual development requirements of a user is adopted. For example, in the embodiment of the present invention, a host computer is developed, and the host computer includes a plurality of user operation interfaces and corresponding data interfaces.
In the practical application process, a user uploads test requirement information to the upper computer through the data interface, and after the test requirement information is acquired, the upper computer immediately analyzes the test requirement information, for example, in the embodiment of the invention, the test requirement information comprises but is not limited to safety requirement information, instruction setting information and catalog information to be tested, and at the moment, the upper computer automatically generates a corresponding safety access rule according to the safety requirement information so as to be convenient for safely and reliably connecting the upper computer with a battery pack appointed by the user; then generating a corresponding communication instruction according to the instruction setting information, wherein the battery pack can be safely and accurately communicated with the upper computer; and generating corresponding content to be tested according to the catalog information to be tested, namely generating personalized test content of the user, and executing corresponding test operation according to the content to be tested at the moment, thereby realizing personalized test of the battery pack.
In the embodiment of the invention, the personalized safety access program, the communication program and the test program are automatically generated according to the actual demand information of the user, and the development of the test program is not required to be independently carried out for each different project, so that the workload of technicians is greatly reduced, the test efficiency of a battery pack is improved, and the test cost of enterprises is reduced. On the other hand, the user can configure the corresponding testing method, testing flow and testing content according to the actual needs of the user instead of adopting a set of universal testing templates, so that the user can be effectively prevented from being cracked by illegal personnel, and the confidentiality and the safety and the reliability of the test are improved.
In an embodiment of the present invention, the security requirement information includes mask information and security content, and the generating the security access rule based on the security requirement information includes: generating a first security access rule according to a first preset rule based on the mask information and the security content; generating a second security access rule based on the mask information and the security content according to a second preset rule; and taking the first security access rule and the second security access rule as the security access rules.
In one possible implementation manner, in order to protect the battery pack of the enterprise, abuse or abnormal use caused by the battery pack being cracked is avoided, so that the security access rule of the battery pack and the upper computer needs to be determined first. In the embodiment of the present invention, firstly, security requirement information is extracted through test requirement information provided by a user, for example, in the embodiment of the present invention, the security requirement information includes, but is not limited to, mask information and security content, for example, the mask information is an unlocking mask, the security content is an unlocking scheme, at this time, corresponding security access rules are automatically generated according to the unlocking mask and the unlocking scheme, for example, first security access rules are generated through setting identification information and verification rules, for example, the first security access rules are first security algorithms; and then setting different identification information and verification rules to generate a second security access rule, wherein the second security access rule is a second security algorithm, and the first security algorithm and the second security algorithm are used as security access rules.
Of course, the user may also provide various mask information and secure content in the security requirement information, and at this time, various security algorithms or other security access rules may be generated according to the various mask information and the security information, which will not be described in detail herein.
In an embodiment of the present invention, the instruction setting information includes communication format setting information and instruction setting information, and the generating the communication instruction based on the instruction setting information includes: acquiring a preset communication format template; processing the preset communication format template based on the communication format information to obtain a processed communication format; acquiring instruction list information; generating instruction information based on the instruction setting information and the instruction list information; and generating the communication instruction based on the processed communication format and the instruction information.
In one possible implementation manner, the communication mode between the upper computer and the battery pack is personalized, for example, in the embodiment of the present invention, the upper computer and the battery pack are in CAN communication, so that the DBC signal in CAN communication is first personalized edited. For example, in the case that a corresponding editing interface can be set in the upper computer, a user can set information such as a start bit, length information, offset information, format information and the like of the DBC signal in the editing interface, the user can set the DBC signal in the instruction setting information, the upper computer firstly acquires a format template of the DBC after acquiring the instruction setting information, and then automatically sets the DBC signal in a corresponding personalized manner according to the communication format setting information.
After the DBC signal is set, further setting the software flashing flow. For example, in the embodiment of the present invention, first, instruction list information is acquired, where each flow of software refreshing is included in the instruction list information, in the embodiment of the present invention, a corresponding interface may be set by an upper computer, where a user may select a software refreshing flow to be set currently, for example, the refreshing flow is: 1. entering an extended session; 2. opening 3E service; 3. delay waiting; 4. opening a first-level access security authority; 5. checking a programming precondition; 6. stopping DTC setting; 7. disabling non-diagnostic communications …, restarting the ECU. After the software refreshing flow is set, the upper computer automatically generates corresponding instruction list information, and at this time, instruction information of each instruction is automatically generated according to instruction setting information provided by a user and the instruction list information, for example, for the downloading application program flow of step 12, corresponding information such as erasure memory sending information (for example, 0x31 0x01 0xFD 0x00 0x44), erasure memory receiving information, integrity sending information, integrity receiving information, integrity checking data information, integrity parameter data information, request exit sending information, request exit receiving information and the like is automatically generated.
In an embodiment of the present invention, the generating the content to be tested based on the directory information to be tested includes: extracting test frame information and corresponding test requirement information from the catalog information to be tested; acquiring basic configuration information based on the test frame information; and generating the content to be tested based on the test requirement information and the basic configuration information.
Further, in the embodiment of the invention, after the setting of the access rule and the communication instruction is completed, the corresponding content to be tested is further generated according to the content to be tested expected by the user. In one possible implementation manner, after obtaining the directory information to be tested, first, test frame information is extracted, for example, the test frame information is a UDS diagnostic template, corresponding basic configuration information is extracted in the UDS diagnostic template, for example, the basic configuration information includes information such as a header, a version number, a chinese name, an english name, a coding type, etc., for example, when reading a hardware version number, the basic configuration information corresponding to the UDS diagnostic template is:
in the embodiment of the invention, a corresponding test configuration frame can be generated according to the basic configuration information, for example, the test configuration frame is a table file containing items such as test items, operation types, security unlocking attributes, sending messages, response messages and the like; then, the content to be tested is generated in combination with the test requirement information, for example, for the read hardware version number, a sending message of the read hardware version number is set to be "22 F1 93" based on the basic configuration information, a response message is set to be a message with a header of "62 F1 93", the operation type of the operation is determined to be "read type" based on the test requirement information, and the safe unlocking state is "no" so as to generate final content to be tested, see fig. 2.
In the embodiment of the invention, the upper computer with the personalized setting function is provided for the user, the user can perform personalized setting on the security access algorithm and the test content through the upper computer and quickly generate the corresponding test program without developing the corresponding test program for each test project, thereby greatly reducing the workload of test development, reducing the test time, improving the test efficiency and simultaneously meeting the actual test demands of more users.
In an embodiment of the present invention, the test method further includes: acquiring a protocol setting operation; determining a communication protocol based on the protocol setup operation; and executing the test operation according to the communication protocol.
In one possible implementation, in order to further improve the compatibility of the test, the requirements of different test communication protocols are met, and before the corresponding test operation is performed, a protocol setting operation is also acquired. For example, in the embodiment of the invention, when the user logs in the current upper computer, the user can be prompted to select a communication protocol to be adopted, and the upper computer monitors whether the protocol setting operation of the user is acquired in real time. At a certain moment, the upper computer obtains the protocol setting operation of the user, and automatically determines the communication protocol adopted by the current communication according to the protocol setting operation, for example, in the embodiment of the invention, the user adopts a CAN card supporting the CAN2.0 protocol or the CANFD protocol on the hardware connection between the current battery pack and the upper computer, so that the CAN2.0 communication protocol or the CANFD communication protocol CAN be determined according to actual needs, and after the communication protocol is determined, the security access rule, the communication instruction and the content to be tested are obtained, the corresponding battery pack test operation is started to be executed.
In the embodiment of the invention, the corresponding communication protocol is adopted according to the actual requirement of the user in the process of setting the test flow, so that the test compatibility of the upper computer is greatly expanded, and the compatibility test of various communication protocols is realized.
Referring to fig. 3, correspondingly, an embodiment of the present invention further provides a testing device for a battery pack, where the testing device includes: the system comprises an acquisition module, a test module and a test module, wherein the acquisition module is used for acquiring test requirement information, and the test requirement information comprises safety requirement information, instruction setting information and directory information to be tested; the first generation module is used for generating a security access rule based on the security requirement information; the second generation module is used for generating a communication instruction based on the instruction setting information; the third generation module is used for generating content to be detected based on the directory information to be detected; and the testing module is used for executing corresponding testing operation based on the security access rule, the communication instruction and the content to be tested.
In an embodiment of the present invention, the security requirement information includes mask information and security content, and the first generation module includes: the first security rule unit is used for generating a first security access rule according to a first preset rule based on the mask information and the security content; a second security rule unit, configured to generate a second security access rule according to a second preset rule based on the mask information and the security content; and the rule generating unit is used for taking the first security access rule and the second security access rule as the security access rules.
In an embodiment of the present invention, the instruction setting information includes communication format setting information and instruction setting information, and the second generating module includes: the template acquisition unit is used for acquiring a preset communication format template; the processing unit is used for processing the preset communication format template based on the communication format information to obtain a processed communication format; a list acquisition unit configured to acquire instruction list information; an instruction information generating unit configured to generate instruction information based on the instruction setting information and the instruction list information; and the instruction generation unit is used for generating the communication instruction based on the processed communication format and the instruction information.
In an embodiment of the present invention, the third generating module includes: the second extraction unit is used for extracting test frame information and corresponding test requirement information from the catalog information to be tested; the first configuration unit is used for acquiring basic configuration information based on the test framework information; and the content to be tested generating unit is used for generating the content to be tested based on the test requirement information and the basic configuration information.
In an embodiment of the present invention, the test apparatus further includes a protocol selection module, where the protocol selection module includes: an operation acquisition unit configured to acquire a protocol setting operation; a protocol determination unit configured to determine a communication protocol based on the protocol setting operation; and the testing unit is used for executing the testing operation according to the communication protocol.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. A method of testing a battery pack, the method comprising:
acquiring test requirement information, wherein the test requirement information comprises safety requirement information, instruction setting information and directory information to be tested, the safety requirement information comprises mask information and safety content, and the instruction setting information comprises communication format setting information and instruction setting information;
generating a first security access rule according to a first preset rule based on the mask information and the security content;
generating a second security access rule based on the mask information and the security content according to a second preset rule;
taking the first security access rule and the second security access rule as the security access rules;
acquiring a preset communication format template;
processing the preset communication format template based on the communication format information to obtain a processed communication format;
acquiring instruction list information;
generating instruction information based on the instruction setting information and the instruction list information;
generating a communication instruction based on the processed communication format and the instruction information;
extracting test frame information and corresponding test requirement information from the catalog information to be tested, and acquiring basic configuration information based on the test frame information;
generating content to be tested based on the test requirement information and the basic configuration information;
and executing corresponding test operation based on the security access rule, the communication instruction and the content to be tested.
2. The test method of claim 1, wherein the test method further comprises:
acquiring a protocol setting operation;
determining a communication protocol based on the protocol setup operation;
and executing the test operation according to the communication protocol.
3. A test device for a battery pack, the test device comprising:
the system comprises an acquisition module, a test module and a test module, wherein the acquisition module is used for acquiring test requirement information, the test requirement information comprises safety requirement information, instruction setting information and directory information to be tested, the safety requirement information comprises mask information and safety content, and the instruction setting information comprises communication format setting information and instruction setting information;
a first generation module comprising:
the first security rule unit is used for generating a first security access rule according to a first preset rule based on the mask information and the security content;
a second security rule unit, configured to generate a second security access rule according to a second preset rule based on the mask information and the security content;
a rule generating unit, configured to take the first security access rule and the second security access rule as the security access rule;
a second generation module, comprising:
the template acquisition unit is used for acquiring a preset communication format template;
the processing unit is used for processing the preset communication format template based on the communication format information to obtain a processed communication format;
a list acquisition unit configured to acquire instruction list information;
an instruction information generating unit configured to generate instruction information based on the instruction setting information and the instruction list information;
the instruction generation unit is used for generating a communication instruction based on the processed communication format and the instruction information;
a third generation module, comprising:
the second extraction unit is used for extracting test frame information and corresponding test requirement information from the catalog information to be tested;
the first configuration unit is used for acquiring basic configuration information based on the test framework information;
the content to be tested generating unit is used for generating content to be tested based on the test requirement information and the basic configuration information;
and the testing module is used for executing corresponding testing operation based on the security access rule, the communication instruction and the content to be tested.
4. A test device according to claim 3, further comprising a protocol selection module, the protocol selection module comprising:
an operation acquisition unit configured to acquire a protocol setting operation;
a protocol determination unit configured to determine a communication protocol based on the protocol setting operation;
and the testing unit is used for executing the testing operation according to the communication protocol.
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