Open AccessFunctional safety evaluation of battery anagement system based on probability of failure per hour
Author(s) -
Mingsheng Chen,
Zhimao Ming,
Liu Gui-xiong,
Hongpei Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/617/1/012045
Subject(s) - hazard analysis , reliability engineering , battery (electricity) , functional safety , hazard , failure rate , system safety , computer science , risk analysis (engineering) , engineering , business , power (physics) , chemistry , physics , organic chemistry , quantum mechanics
In order to identify functional safety property of battery management system, safety integrity level of BMS research is performed by average frequency of a dangerous failure of the safety function. The result shows that: currently, functional safety has been research at home and abroad, through evaluation system of road vehicle and electrical, electronic, programmable electronic safety-related systems. So, safety integrity level could be analyzed quantitatively by a functional relation, which is established among tolerable hazard frequency, demand rate on safety-related protection system, dangerous failure of average frequency and safety integrity level. Based on tolerable hazard frequency and the demand rate on safety-related protection system, safety integrity level of a BMS is evaluated as level II.