A method for measuring and evaluating the fault response performance of battery management system. (July 2022)

• Record Type: Journal Article
• Authors: Xie, Kun; Han, Liqiong; Ma, Kai; Wang, Fang; Wang, Bin; Chen, Jingchao; Gao, Yan
• Is Part Of: Energy reports. Volume 8(2022)Supplement 4
• Page Start: 639
• Page End: 649
• Publication Date: 2022-07
• Subjects: Battery management system -- Fault state -- Fault response -- Test and evaluation; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2022.01.223
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: The battery management system (BMS), as an important link between battery pack, vehicle system and motor, is one of the important core technologies of new energy vehicles. The response and treatment of BMS to faults directly affects the safety and reliability of electric vehicles. This paper focuses on the accuracy, timeliness and reliability testing technology of BMS fault response, based on the hardware-in-the-loop simulation environment and the actual test environment. Study different BMS in battery system fault condition (such as over-charge, over-discharge, over-temperature, over-current) under the condition of the response as a result, the analysis of fault report speed, protect reliability key parameters such as response time and response. The test results show that the BMS applied to ternary battery system is obviously faster than the BMS applied to lithium iron phosphate battery system to diagnose faults and alarm time. However, the application range and boundary of lithium iron phosphate battery system are wider, and its battery performance is more stable, which also verifies the rationality of its failure response time setting value and treatment mode. Through constructing BMS fault response test evaluation technology platform, realize the BMS fault response performance of accurate and real evaluation.