Presentation Information

[17p-S4_201-13]Feasibility Study of Diamond Quantum Sensor for EV Battery Monitoring

〇Akimichi Nakazono1, Yuji Hatano1, Kenichi Kajiyama1, Jyunya Tanigawa2, Hiroshi Abe3, Shinobu Onoda3, Takeshi Ohshima3, Takayuki Iwasaki1, Mutsuko Hatano1 (1.Science Tokyo, 2.YAZAKI Co., 3.QST)

Keywords:

diamonod,Quantum sensing,Current sensor

Electric vehicle (EV) battery monitoring requires current sensors that can accurately measure a wide range of currents, from the large currents during fast charging to the very small currents in standby mode, even under harsh temperature conditions.
We have been developing a diamond quantum sensor that is highly robust against temperature variations and provides precise measurement across a wide measurement range. To evaluate its feasibility, we installed a prototype sensor in an actual EV and carried out driving tests. This report presents the results of these experiments.