Charger and battery management system communication protocol consistency test method, device and system and storage medium

A battery management system and communication protocol technology, applied in the field of conformance testing, can solve the problems of difficult location of chargers, high failure rate, and difficult maintenance, etc., and achieve the effect of strong reusability

Pending Publication Date: 2022-03-29
STATE GRID ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the construction and use of chargers, the following problems will inevitably arise: first, there are general safety hazards in chargers, and safety accidents occur frequently; second, there are quality and safety problems in chargers, and the failure rate is high; third, chargers Faults are difficult to locate and maintenance is difficult
However, these proposed methods also have their own shortcomings, such as the efficiency of algorithm implementation

Method used

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  • Charger and battery management system communication protocol consistency test method, device and system and storage medium
  • Charger and battery management system communication protocol consistency test method, device and system and storage medium
  • Charger and battery management system communication protocol consistency test method, device and system and storage medium

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 As shown, the embodiment of the present invention provides a method for testing the consistency of the communication protocol between the charger and the battery management system, including the following steps:

[0055] (1) Obtain the interaction process and message information between the charger and the battery management system at each charging stage; through the analysis of GB / T 27930-2015 "Communication Protocol between Off-board Conductive Charger and Battery Management System for Electric Vehicles" , the entire charging process is divided into four stages, including the handshake stage, the parameter configuration stage, the charging stage and the charging end stage.

[0056] (2) Obtain the FSM diagram of each charging stage based on the interaction process and message information.

[0057] (3) Obtain the state of the charger and the battery management system and the required input and expected output in each charging stage based on the FSM dia...

Embodiment 2

[0089] An embodiment of the present invention provides a device for testing the consistency of the communication protocol between a charger and a battery management system. The device includes:

[0090] The data acquisition module is used to acquire the interaction process and message information of the charger and the battery management system at each charging stage;

[0091] The FSM map acquisition module is used to obtain the FSM map of each charging stage based on the interaction process and message information;

[0092] The parameter acquisition module is used to acquire the state of the charger and the battery management system and the required input and expected output in each charging stage based on the FSM diagram;

[0093] The test sequence acquisition module is used to use the state as a node, input and output as edges, and use the UIO method to generate a test sequence;

[0094] A test case acquisition module is used to generate test cases based on the test sequen...

Embodiment 3

[0097] An embodiment of the present invention provides a communication protocol consistency test system between a charger and a battery management system, including a processor and a storage medium;

[0098] The storage medium is used to store instructions;

[0099] The processor is configured to operate in accordance with the instructions to perform the steps according to any one of the methods described above.

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Abstract

The invention discloses a method, a device and a system for testing the consistency of communication protocols of a charger and a battery management system, and a storage medium. The method comprises the following steps: acquiring an interaction process and message information of the charger and the battery management system in each charging stage; obtaining an FSM graph of each charging stage based on the interaction process and the message information; obtaining the states of the charger and the battery management system in each charging stage and the required input and expected output based on the FSM map; using states as nodes, using input and output as edges, and using a UIO method to generate a test sequence; based on the test sequence, a test case is generated by adopting a recursive algorithm, and a test case set is generated according to the test case; and testing the communication protocol consistency of the charger and the battery management system based on the test case set. According to the invention, the communication consistency of the protocol among different entities can be ensured, so that the test method not only has theoretical support, but also has strong multiplexing capability.

Description

technical field [0001] The invention relates to a consistency testing method, device, system and storage medium for a communication protocol between a charger and a battery management system, and belongs to the technical field of consistency testing. Background technique [0002] In the construction and use of chargers, the following problems will inevitably arise: first, there are generally hidden safety hazards in chargers, and safety accidents occur frequently; second, there are quality and safety problems in chargers, and the failure rate is high; Faults are difficult to locate and maintenance is difficult. In the face of these safety issues, we have to test the charger more strictly. The test content of the charger includes electrical characteristics, protocol conformance, and interoperability testing. Due to the large number of test items in each category, traditional manual and semi-automatic testing methods are inefficient, and are almost incapable of facing complex...

Claims

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Application Information

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IPC IPC(8): G06F11/36
CPCG06F11/3684G06F11/3688
Inventor 桑林贾俊国李旭玲盛立健刘慧文何雪枫吴尚洁张萱马彦华潘诚叶建德耿群峰陈良亮
Owner STATE GRID ELECTRIC POWER RES INST
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