Open AccessControl Strategy of Coolant Flow Rate and Temperature of Battery Pack Based on Double Fuzzy Controller
Author(s) -
Yang Zhao,
Hengfu Wang,
Qinkai Zhou,
Yuan Luo,
Meixia Zhang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1550/6/062009
Subject(s) - coolant , battery (electricity) , controller (irrigation) , temperature control , volumetric flow rate , battery pack , automotive engineering , energy consumption , control theory (sociology) , nuclear engineering , computer science , environmental science , materials science , mechanical engineering , engineering , control (management) , mechanics , electrical engineering , thermodynamics , physics , agronomy , power (physics) , artificial intelligence , biology
The temperature and flow rate of coolant have a great influence on the performance of the cooling system. Too low temperature of coolant will increase the temperature difference between single batteries, and too high temperature will not be conducive to battery cooling. If the flow rate of coolant is too high, it will lead to the increase of system energy consumption and reduce the vehicle’s mileage, but too low flow rate of coolant will lead to the increase of battery temperature, which will bring safety risks. In order to solve these problems, this paper takes both the maximum temperature and the maximum temperature difference of the battery into consideration and proposes a double fuzzy controller. Compared with the step control scheme, the maximum temperature is reduced by 3 °C, and the maximum temperature difference is reduced by 1.75 °C, and the energy consumption is reduced by 13.3%.