公开(公告)号：US20200036023A1

公开(公告)日：2020-01-30

申请号：US16438620

申请日：2019-06-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomohiro OGAWA ,  Tomotaka ISHIKAWA ,  Shinji ASOU ,  Tomio YAMANAKA ,  Junichi MATSUO ,  Ryosuke OYA

IPC: H01M8/04701 ,  H01M8/04225 ,  H01M8/04302 ,  H01M8/0432 ,  H01M8/04082 ,  H01M8/04029 ,  B60L58/33 ,  B60L58/34

Abstract: A fuel cell vehicle comprises a fuel cell, a power storage device, a drive motor, a temperature sensor configured to measure a temperature of the fuel cell, a detector configured to detect an operation condition of the fuel cell, and a controller. At a start time of the fuel cell, in a case where the temperature of the fuel cell detected by the temperature sensor is below a freezing point, when an output condition of the fuel cell shown by the detected operation condition of the fuel cell continuously corresponds to a predetermined low output condition for a predetermined reference time period or longer, the controller sets a driving state of the fuel cell vehicle to a first driving state that stops power generation of the fuel cell, drives the drive motor by using only the power storage device as a power source and limits a motor output of the drive motor to be equal to or lower than a predetermined first upper limit output.

公开(公告)号：US20200044269A1

公开(公告)日：2020-02-06

申请号：US16520608

申请日：2019-07-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomio YAMANAKA ,  Tomotaka ISHIKAWA ,  Shinji ASOU ,  Tsuyoshi MARUO

IPC: H01M8/04223 ,  H01M8/04225 ,  H01M8/04701 ,  H01M8/04302

Abstract: A fuel cell system includes a controller that controls actions of the fuel cell system. The controller includes a freezing presence-absence determination unit that performs freezing presence-absence determination, a temperature raising execution unit that performs temperature raising processing for raising a temperature of an exhaust and drain valve, and a thawing presence-absence determination unit. In the freezing presence-absence determination, freezing determination is made when the exhaust flow rate of gas is equal to or lower than a first threshold. In the thawing presence-absence determination, thawing determination indicating that the exhaust and drain valve is thawed is made when the exhaust flow rate of gas is higher than a second threshold. The second threshold shows a flow rate higher than the first threshold.