Fuel cell system, movable body, and control method

Patent metadata

Field	Value
Publication number	US-2016141683-A1
Application number	US-201514940426-A
Country	US
Kind code	A1
Filing date	Nov 13, 2015
Priority date	Nov 14, 2014
Publication date	May 19, 2016
Grant date	—

Abstract

Disclosed is a technology for ensuring the safety of a vehicle on which a fuel cell is mounted and the convenience of a user.
In a fuel cell system which is able to be mounted on a movable body, it is determined whether or not the movement of the movable body is stopped and the fuel cell system is operated when an opening instruction for opening a filling port for filling a fuel gas storage portion with fuel gas is received. When it is determined that the movement of the movable body is stopped and the fuel cell system is operated, a main stop valve controlling the supply of the fuel gas to the cell stack from the fuel gas storage portion is closed, and then the filling port is opened.

First claim

What is claimed is:

1 . A fuel cell system which is able to be mounted on a movable body, comprising:
a cell stack including a plurality of single cells generating power by receiving supply of fuel gas and oxidizing gas; a fuel gas storage portion storing the fuel gas; a supply path supplying the fuel gas to the cell stack from the fuel gas storage portion; a main stop valve disposed in the supply path and controlling the supply of the fuel gas to the cell stack; a filling port for filling the fuel gas storage portion with the fuel gas; and a controller controlling the filling port to be opened after the main stop valve is closed when an instruction for opening the filling port is received at the time that the movable body is stopped and the fuel cell system is operated.

2 . The fuel cell system according to claim 1 ,
wherein the controller performs end processing with respect to the operation of the fuel cell system and closes the main stop valve when the instruction for opening the filling port is received at the time that a movement of the movable body is stopped and the fuel cell system is operated.

3 . The fuel cell system according to claim 2 ,
wherein the end processing of the operation of the fuel cell system when the instruction for opening the filling port is received at the time that the movement of the movable body is stopped and the fuel cell system is operated does not include at least a part of normal end processing of the operation of the fuel cell system.

4 . The fuel cell system according to claim 3 ,
wherein at least the part of the processing includes at least any one of exhaust processing and drain processing of the cell stack.

5 . A movable body on which a fuel cell system is mounted,
wherein the fuel cell system includes a cell stack including a plurality of single cells generating power by receiving supply of fuel gas and oxidizing gas, a fuel gas storage portion storing the fuel gas, a supply path supplying the fuel gas to the cell stack from the fuel gas storage portion, a main stop valve disposed in the supply path and controlling the supply of the fuel gas to the cell stack, a filling port for filling the fuel gas storage portion with the fuel gas, and a controller controlling the filling port to be opened after the main stop valve is closed when an instruction for opening the filling port is received at the time that a movement of the movable body is stopped and the fuel cell system is operated.

6 . A control method performed in a fuel cell system which is able to be mounted on a movable body, the method comprising:
a step of determining whether or not the movable body is stopped and the fuel cell system is operated when an opening instruction for opening a filling port for filling a fuel gas storage portion with fuel gas is received; and a step of opening the filling port after a main stop valve controlling supply of the fuel gas to a cell stack from the fuel gas storage portion is closed when it is determined that a movement of the movable body is stopped and the fuel cell system is operated.

Assignees

• Toyota Motor Co Ltd

Inventors

• Imanishi Hiroyuki
• Ogawa Tomohiro

Classifications

• H01M8/043

  applied during specific periods · CPC title

• B60L50/72

  Constructional details of fuel cells specially adapted for electric vehicles · CPC title

• H01M8/04201 Primary

  Reactant storage and supply, e.g. means for feeding, pipes · CPC title

• H01M8/04223

  during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells · CPC title

• H01M8/04753 Primary

  of fuel cell reactants · CPC title