公开(公告)号：US20230178769A1

公开(公告)日：2023-06-08

申请号：US18046537

申请日：2022-10-14

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Toshihiro EGAWA ,  Makito OKUMURA ,  Atsuo IIO ,  Hisaya FUJlOKA

IPC分类号： H01M8/0432 ,  H01M8/04029 ,  H01M8/04664 ,  H01M8/04746 ,  H01M8/04955 ,  H01M8/249 ,  G01K13/02

CPC分类号： H01M8/04358 ,  G01K13/026 ,  H01M8/249 ,  H01M8/04029 ,  H01M8/04664 ,  H01M8/04768 ,  H01M8/04955

摘要： An FC system disclosed herein may comprise a plurality of FC units, a cooler, and a controller. Each of the FC units may comprise a FC stack, a supply passage / a return passage / a circulating passage through which refrigerant passes, and first temperature sensor. The supply passage supplies the refrigerant from the cooler to the FC stack. The return passage returns the refrigerant to the cooler. The circulating passage is connected to the supply passage and the return passage. The first temperature sensor is configured to measure a temperature of the refrigerant in the supply passage at a position upstream of a merging point of the supply passage and the circulating passage. When measured values of the first temperature sensors of the plurality of the FC units do not match, the controller is configured to provide notification about malfunction of the first temperature sensor.

公开(公告)号：US20230178762A1

公开(公告)日：2023-06-08

申请号：US18046538

申请日：2022-10-14

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Makito OKUMURA ,  Hisaya FUJlOKA ,  Atsuo IIO ,  Toshihiro EGAWA

IPC分类号： H01M8/04029 ,  H01M8/0267 ,  H01M8/04007 ,  H01M8/0432

CPC分类号： H01M8/04029 ,  H01M8/0267 ,  H01M8/04067 ,  H01M8/04358

摘要： An FC system disclosed herein comprise FC units, a cooler and a controller. Each of the FC units comprises a FC stack, a supply/a return/a circulating passages through which refrigerant flows and first to third temperature sensors. The first to third temperature sensors measure temperatures of the refrigerant in the passages at different positions. The controller is configured to stop a specific FC unit, compare measured values of the first to third temperature sensors of the stopped specific FC unit and, when one of the measured values differs from the other two of the measured values, provide notification about malfunction of the temperature sensor with the different measured value.