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Fuel cell system and failure determination method of fuel cell system

A fuel cell system and fault determination technology, applied in fuel cells, fuel cell additives, power system fuel cells, etc., can solve the problems of faster reduction of cruising distance, discomfort, long cruising distance, etc., and improve convenience sexual effect

Inactive Publication Date: 2017-12-12
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the fuel cell system calculates the cruising distance to be longer than it actually is based on the pressure of the hydrogen gas, and the cruising distance decreases quickly, giving discomfort to the user.

Method used

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  • Fuel cell system and failure determination method of fuel cell system
  • Fuel cell system and failure determination method of fuel cell system
  • Fuel cell system and failure determination method of fuel cell system

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Embodiment Construction

[0056] Hereinafter, the fuel cell system and the failure determination method of the fuel cell system according to the present invention will be described in detail with reference to suitable embodiments and with reference to the drawings.

[0057] A fuel cell system 10 according to an embodiment of the present invention is mounted on, for example, a fuel cell vehicle, and supplies electric power to a load such as a drive source. It should be noted that the fuel cell system 10 is not limited to vehicle-mounted use, and can be applied to various uses such as stationary use by adding appropriate changes.

[0058] Such as figure 1 As shown, the fuel cell system 10 includes a fuel cell 12 (fuel cell stack), a fuel gas supply device 14 connected to the fuel cell 12 to supply hydrogen gas (reactive gas) as a fuel gas, and a control unit 16 as a system control device. In addition, as other structures not shown, the fuel cell system 10 has an oxidant gas supply device for supplying air...

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PUM

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Abstract

A fuel cell system includes first and second tanks, first and second pipes, a pipe, a first valve, a second valve, a pressure sensor, and circuitry. The first pipe is connected to the first tank. The second pipe is connected to the second tank. The pipe is connected to a fuel cell and connected to the first and second pipes to supply a reaction gas from the first and second tanks to the fuel cell. The first valve is provided at the first pipe. The second valve is provided at the second pipe. The pressure sensor is provided at the pipe between the joint point and the fuel cell. The circuitry determines whether a failure occurs in at least one of the first and second valves based on a change in the pressure detected by the pressure sensor while the first and second valves are controlled.

Description

technical field [0001] The present invention relates to a fuel cell system for judging a failure of an on-off valve connected to a plurality of tanks, and a method for judging a failure of the fuel cell system. Background technique [0002] A fuel cell system of a fuel cell vehicle may be provided with a plurality of tanks storing hydrogen in order to increase the loading amount of hydrogen and install it in a limited space such as inside the vehicle body (for example, refer to Patent Document 1). [0003] In such a fuel cell system, in order to simplify the control, the on-off valves connected to the plurality of tanks are simultaneously opened to let the hydrogen flow out, and the hydrogen gas is combined in the middle of the flow path and supplied to the fuel cell. In addition, the fuel cell system detects the pressure of hydrogen gas through a pressure sensor, so as to calculate the remaining capacity and cruising distance of hydrogen gas. In particular, the fuel cell s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/04089H01M8/04746
CPCH01M8/04H01M8/04104H01M8/04753H01M8/04201H01M8/04388H01M8/04686H01M2008/1095H01M2250/20Y02T90/40Y02E60/50
Inventor 吉村祐哉河濑晓松本裕嗣
Owner HONDA MOTOR CO LTD