CN112415404A - 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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- CN112415404A CN112415404A CN202011191398.3A CN202011191398A CN112415404A CN 112415404 A CN112415404 A CN 112415404A CN 202011191398 A CN202011191398 A CN 202011191398A CN 112415404 A CN112415404 A CN 112415404A
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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 test method of a battery pack, which comprises the following steps: acquiring test requirement information, wherein the test requirement information comprises safety 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 directory information to be tested; and executing corresponding test operation based on the safety access rule, the communication instruction and the content to be tested. By designing the test device of the battery pack, test contents can be configured according to the actual test requirements of a user in the test process, rather than independently developing a specific test program for each battery test project, so that the test freedom is greatly improved, and the test 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 invention relates to the technical field of battery testing, in particular to a battery pack testing method and a battery pack testing device.
Background
With the continuous development of science and technology, more and more products are created, and in order to meet the requirements of more life scenes and more work, more and more devices are independently operated, and the devices which are independently operated need batteries to supply energy to the devices, so that the requirements and the applications of the batteries are more and more.
For an application scenario with a large energy consumption requirement, a single battery cannot meet normal requirements, for example, for a new energy automobile, a battery pack needs to be configured to meet the requirements of the new energy automobile in terms of energy density and energy output efficiency, and a special battery management system is needed for managing the battery pack.
In the prior art, the battery pack needs to be subjected to offline test after being assembled, and the battery management system has more test items, 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 the test standards and the test specifications of different battery test items are different, the communication modes adopted by different battery test items are also different; on the other hand, the existing test program cannot realize user-defined configuration, the compatibility of the test items is poor, and the problems result in 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 above, the present invention is directed to a method and an apparatus for testing a battery pack, which generate corresponding test contents according to the test requirements of a user and are compatible with different communication protocols, so as to avoid at least some of the above-mentioned disadvantages of the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a test method of a battery pack, which comprises the following steps: acquiring test requirement information, wherein the test requirement information comprises safety 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 directory information to be tested; and executing corresponding test operation based on the safety 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 a security access rule based on the security requirement information includes: generating a first security access rule based on the mask information and the security content according to a first preset rule; 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 of 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 to-be-tested directory information; acquiring basic configuration information based on the test framework information; and generating the content to be tested based on the testing 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 setting operation; the test operation is performed in accordance with 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 storage module and a processing 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 the content to be detected based on the directory information to be detected; and the test module is used for executing corresponding test operation based on the safety 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 generating module includes: the first security rule unit is used for generating a first security access rule based on the mask information and the security content according to a first preset rule; the second security rule unit is used for generating a second security access rule based on the mask information and the security content according to a second preset rule; a rule generating unit, configured to use the first security access rule and the second security access rule as the security access rule.
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 generating unit is used for generating the communication instruction based on the processed communication format and the instruction information.
Preferably, the third generating module comprises: the second extraction unit is used for extracting the test frame information and the corresponding test requirement information from the to-be-tested directory information; the first configuration unit is used for acquiring basic configuration information based on the test framework information; and the to-be-tested content generating unit is used for generating the to-be-tested content based on the test requirement information and the basic configuration information.
Preferably, the testing 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 for determining a communication protocol based on the protocol setting operation; and the test unit is used for executing the test operation according to the communication protocol.
By designing the test device of the battery pack, test contents can be configured according to the actual test requirements of a user in the test process, rather than independently developing a specific test program for each battery test project, so that the test freedom is greatly improved, and the test 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 incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating an 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 contents to be tested in the method for testing a battery pack according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for testing 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 invention provides a method for testing a battery pack, where the method includes:
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 the content to be tested based on the directory information to be tested;
s50) executing corresponding test operation based on the safety access rule, the communication instruction and the content to be tested.
In order to solve the technical problems that the test of the battery pack in the prior art needs to be developed independently and pertinently according to different projects, and is time-consuming and labor-consuming, in a possible implementation mode, a test method for automatically executing corresponding personalized test functions according to actual development requirements of users is adopted. For example, in the embodiment of the present invention, an upper computer is developed, and the upper 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 the upper computer immediately analyzes the test requirement information after acquiring the test requirement information, for example, in the embodiment of the present invention, the test requirement information includes, but is not limited to, safety requirement information, instruction setting information, and directory information to be tested, and at this time, the upper computer automatically generates a corresponding safety access rule according to the safety requirement information, so as to safely and reliably connect the upper computer with a battery pack specified 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 an upper computer at the moment; and generating corresponding content to be tested according to the directory information to be tested, namely generating personalized test content of the user, and executing corresponding test operation according to the content to be tested, thereby realizing the personalized test of the battery pack.
In the embodiment of the invention, the individualized security access program, the communication program and the test program are automatically generated according to the actual demand information of the user, and the test program does not need to be developed independently for each different project, so that the workload of technicians is greatly reduced, the test efficiency of the battery pack is improved, and the test cost of enterprises is reduced. On the other hand, the user can configure corresponding testing method, testing flow and testing content according to the actual needs of the user, instead of adopting a set of universal testing template, so that the user can effectively avoid being cracked by illegal personnel, and the secrecy and the safety and the reliability of the test are also improved.
In this embodiment of the present invention, the security requirement information includes mask information and security content, and the generating a security access rule based on the security requirement information includes: generating a first security access rule based on the mask information and the security content according to a first preset rule; 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 a possible implementation manner, in order to protect the battery pack of an enterprise, and avoid abuse or abnormal use caused by the fact that the battery pack is cracked, the security access rules of the battery pack and an upper computer need to be determined at 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, a corresponding security access rule is automatically generated according to the unlocking mask and the unlocking scheme, for example, a first security access rule is generated by setting identification information and a verification rule, for example, the first security access rule is a first-level security algorithm; then, different identification information and verification rules are set to generate a second security access rule, for example, the second security access rule is a secondary security algorithm, and the primary security algorithm and the secondary security algorithm are used as security access rules.
Of course, the user may also provide various mask information and security 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 security information, which is not described in detail herein.
In this embodiment of the present invention, the instruction setting information includes communication format setting information and instruction setting information, and the generating a 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 embodiment, the communication mode between the upper computer and the battery pack is customized individually, for example, in the embodiment of the present invention, the communication between the upper computer and the battery pack uses CAN communication, so the DBC signal using CAN communication is first edited individually. For example, 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 also set the DBC signal in the instruction setting information, the upper computer first acquires a format template of the DBC after acquiring the instruction setting information, and then automatically performs corresponding personalized setting on the DBC signal according to the communication format setting information.
And after the DBC signal is set, further setting a software flashing flow. For example, in the embodiment of the present invention, first, instruction list information is obtained, where the instruction list information includes each flow for performing software flashing, in the embodiment of the present invention, the upper computer may set a corresponding interface, and in the interface, a user may select a software flashing flow to be currently set, where, for example, the flashing flow is: 1. entering an extension session; 2. opening the 3E service; 3. delaying for waiting; 4. opening a first-level access security authority; 5. checking a programming precondition; 6. stopping DTC setting; 7. disabling the non-diagnostic communication … 15, restarting the ECU. After the software flashing process is set, the upper computer automatically generates corresponding instruction list information, and at this time, the instruction information for each instruction is automatically generated according to the instruction setting information provided by the user and the instruction list information, for example, for the downloaded application program process in step 12, the corresponding information for erasing the memory sending information (for example, 0x 310 x 010 x fd 0x 000 x44), the information for erasing the memory receiving information, the integrity sending information, the integrity receiving information, the integrity checking data information, the integrity parameter data information, the information for requesting to quit sending and the information for requesting to quit receiving are automatically generated.
In this 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 to-be-tested directory information; acquiring basic configuration information based on the test framework information; and generating the content to be tested based on the testing requirement information and the basic configuration information.
Further, in the embodiment of the present 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 desired by the user. In a possible implementation manner, after obtaining the directory information to be tested, first extracting test frame information, for example, the test frame information is a UDS diagnostic template, and extracting corresponding basic configuration information in the UDS diagnostic template, for example, the basic configuration information includes information such as a prefix, a version number, a chinese name, an english name, and a coding type, and for example, when reading a hardware version number, the basic configuration information corresponding to the UDS diagnostic template is:
in the embodiment of the present invention, a corresponding test configuration framework may be generated according to the basic configuration information, for example, the test configuration framework is a table file containing items such as test items, operation types, security unlocking attributes, sending messages, response messages, and the like; then, generating content to be tested by combining with the test requirement information, for example, for reading the hardware version number, setting a sending message for reading the hardware version number to be "22F 193" based on the basic configuration information, setting a response message to be a message with a header of "62F 193", determining that the operation type of the operation is the "reading type" based on the test requirement information, and determining that the safe unlocking state is "no" to generate final content to be tested, please refer to fig. 2.
In the embodiment of the invention, the user can set the security access algorithm and the test content in an individualized way through the upper computer provided with the individualized setting function, and the user can generate the corresponding test program quickly without developing the corresponding test program for each test item, so that the workload of test development is greatly reduced, the test time is reduced, the test efficiency is improved, and the actual test requirements of more users are met.
In an embodiment of the present invention, the testing method further includes: acquiring a protocol setting operation; determining a communication protocol based on the protocol setting operation; the test operation is performed in accordance with the communication protocol.
In a possible implementation manner, in order to further improve the test compatibility and meet the requirements of different test communication protocols, a protocol setting operation is further acquired before the corresponding test operation is performed. For example, in the embodiment of the present invention, the user may be prompted to select a communication protocol to be used when the user logs in the current upper computer, and the upper computer monitors whether to acquire a protocol setting operation of the user in real time. At a certain moment, the upper computer acquires a protocol setting operation of the user, and automatically determines a communication protocol adopted by current communication according to the protocol setting operation, for example, in the embodiment of the present invention, the user adopts a CAN card supporting a CAN2.0 protocol or a CAN fd protocol on a hardware connection between the current battery pack and the upper computer, so that it CAN be determined to adopt the CAN2.0 communication protocol or the CAN fd communication protocol according to actual needs, and after determining the communication protocol and acquiring the security access rule, the communication instruction, and the content to be tested, the corresponding battery pack test operation is started.
In the embodiment of the invention, the corresponding communication protocol is adopted according to the actual requirements 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 apparatus for a battery pack, where the testing apparatus includes: the system comprises an acquisition module, a storage module and a processing 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 the content to be detected based on the directory information to be detected; and the test module is used for executing corresponding test operation based on the safety 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 generating module includes: the first security rule unit is used for generating a first security access rule based on the mask information and the security content according to a first preset rule; the second security rule unit is used for generating a second security access rule based on the mask information and the security content according to a second preset rule; a rule generating unit, configured to use the first security access rule and the second security access rule as the security access rule.
In this 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 generating 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 the test frame information and the corresponding test requirement information from the to-be-tested directory information; the first configuration unit is used for acquiring basic configuration information based on the test framework information; and the to-be-tested content generating unit is used for generating the to-be-tested content based on the test requirement information and the basic configuration information.
In an embodiment of the present invention, the testing 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 for determining a communication protocol based on the protocol setting operation; and the test unit is used for executing the test operation according to the communication protocol.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for 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;
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 directory information to be tested;
and executing corresponding test operation based on the safety access rule, the communication instruction and the content to be tested.
2. The testing method of claim 1, wherein the security requirement information includes mask information and security content, and wherein generating the security access rule based on the security requirement information includes:
generating a first security access rule based on the mask information and the security content according to a first preset rule;
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.
3. The method according to claim 1, wherein the command setting information includes communication format setting information and command setting information, and the generating a communication command based on the command 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.
4. The method according to claim 1, wherein the generating of the content to be tested based on the directory information to be tested comprises:
extracting test frame information and corresponding test requirement information from the to-be-tested directory information;
acquiring basic configuration information based on the test framework information;
and generating the content to be tested based on the testing requirement information and the basic configuration information.
5. The testing method of claim 1, further comprising:
acquiring a protocol setting operation;
determining a communication protocol based on the protocol setting operation;
the test operation is performed in accordance with the communication protocol.
6. A test apparatus for a battery pack, the test apparatus comprising:
the system comprises an acquisition module, a storage module and a processing 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 the content to be detected based on the directory information to be detected;
and the test module is used for executing corresponding test operation based on the safety access rule, the communication instruction and the content to be tested.
7. The testing apparatus of claim 6, wherein the security requirement information comprises mask information and security content, and the first generating module comprises:
the first security rule unit is used for generating a first security access rule based on the mask information and the security content according to a first preset rule;
the second security rule unit is used for generating a second security access rule based on the mask information and the security content according to a second preset rule;
a rule generating unit, configured to use the first security access rule and the second security access rule as the security access rule.
8. The testing device of claim 6, wherein the command setting information comprises communication format setting information and command setting information, and the second generating module comprises:
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 generating unit is used for generating the communication instruction based on the processed communication format and the instruction information.
9. The test device of claim 6, wherein the third generation module comprises:
the second extraction unit is used for extracting the test frame information and the corresponding test requirement information from the to-be-tested directory information;
the first configuration unit is used for acquiring basic configuration information based on the test framework information;
and the to-be-tested content generating unit is used for generating the to-be-tested content based on the test requirement information and the basic configuration information.
10. The testing device of claim 6, 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 for determining a communication protocol based on the protocol setting operation;
and the test unit is used for executing the test operation according to the communication protocol.
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| 殷苏民;万翔;张建明;: "电池多参数自动测试系统的研制", 《制造业自动化》, vol. 37, no. 5, pages 19 - 21 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113518015A (en) * | 2021-04-08 | 2021-10-19 | 重庆长安汽车股份有限公司 | Automatic realization method based on vehicle machine CAN network signal test |
| CN113518015B (en) * | 2021-04-08 | 2023-03-14 | 重庆长安汽车股份有限公司 | Automatic realization method based on vehicle machine CAN network signal test |
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| CN112415404B (en) | 2023-06-27 |
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