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Real-time monitoring diagnostic system and diagnostic method for electromobile battery management system

A technology of battery management system and real-time monitoring, applied in electric vehicle charging technology, electric vehicles, electric traction, etc., can solve problems such as inaccurate representation, high demand, limited data volume, etc., to improve production test efficiency and accurate test results , the effect of fast storage speed

Active Publication Date: 2014-02-12
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that it cannot reflect the operating status in real time, and the storage time interval is generally above the second level. If the system is temporarily disturbed or in an instant alarm state, it cannot accurately reflect
Its disadvantages are: the fault detection is not intuitive, the operator needs to be familiar with the BMS system communication protocol, which brings tediousness to the after-sales maintenance work
Its shortcomings are: remote monitoring has a high demand for network communication, and the amount of data it can carry is limited, which cannot meet the needs of batch data analysis

Method used

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  • Real-time monitoring diagnostic system and diagnostic method for electromobile battery management system

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Embodiment Construction

[0055] figure 1 It is a real-time monitoring and diagnosis system for electric vehicle battery management systems, and a dedicated monitoring and testing platform for BMS.

[0056] The system consists of a computer 1, a CAN communication data transmission module 2 and a battery management system 3.

[0057] Among them, the CAN communication data transmission module 2 is provided with a USB interface and a CAN line interface. The USB interface of the CAN communication data transmission module 2 is connected to the computer 1 as the host computer through a USB cable. The CAN line interface of the CAN communication data transmission module 2 passes The CAN line is connected to the battery management system 3.

[0058] figure 2 It is the specific flow chart of the real-time monitoring and diagnosis system of the electric vehicle battery management system to set the parameters of the BMS host and slave. When the test platform is running, after the parameter configuration function is sele...

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Abstract

The invention discloses a real-time monitoring diagnostic system and diagnostic method for an electromobile battery management system. The real-time monitoring diagnostic system comprises an upper computer and a CAN communication data transmission module; the CAN communication data transmission module comprises a USB interface and a CAN wire interface, the USB interface is connected with the upper computer, and the CAN wire interface is connected with the CAN wire of a BMS. The diagnostic method comprises the steps that operation parameters and data displaying of a host machine and a slave machine of the BMS system are set; a monitoring system operates in real time and automatically stores real-time information; reliability and sensitivity of BMS protecting actions are verified, generation of voltages, currents, temperature signals and anomalous events can be simulated, so that reaction of the BMS to abnormal signals is captured and diagnosis is conducted on the BMS; control reliability of each relay of the BMS is detected. The real-time monitoring diagnostic system and diagnostic method for the electromobile battery management system meets detection application requirements during BMS batch production and improves production testing efficiency, can carry out real-time fault diagnosis on the BMS through the CAN, and provides an effective method for debugging and fault processing work.

Description

Technical field [0001] The invention relates to a real-time monitoring and diagnosis system and a diagnosis method for an electric vehicle battery management system. Background technique [0002] At present, new energy vehicles are listed as national key projects, which mainly involve the electric vehicle industry. The current development of key technologies for electric vehicles includes vehicle control technology, power battery technology, and battery management system technology. Among them, the battery management system (BMS) is the link between the power battery and the user. In recent years, with the development of electric vehicle technology, the advantages and disadvantages of the BMS system will directly affect the safety and reliability of electric vehicles, so the performance requirements of the BMS system are getting higher and higher. The detection and monitoring of the BMS system is one of the important ways to ensure and improve the performance of the BMS system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCY02T10/7005Y02T90/16Y02T10/70
Inventor 杨刘倩韩廷宋薇
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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