Device for diagnosing valve failure of fuel cell system
US-2024347748-A1 · Oct 17, 2024 · US
Fuel cell apparatus control method, control apparatus, and power generation system
US2025273712A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025273712-A1 |
| Application number | US-202519207069-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 13, 2025 |
| Priority date | Nov 29, 2022 |
| Publication date | Aug 28, 2025 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A fuel cell apparatus control method includes at least two of the steps of: reducing an output of a fuel cell apparatus that generates power using hydrogen from a hydrogen reservoir device upon a decrease in an amount of hydrogen in the hydrogen reservoir device; reducing the output of the fuel cell apparatus upon an increase in a temperature of a heating medium that collects exhaust heat from the fuel cell apparatus; and reducing the output of the fuel cell apparatus upon an increase in an air temperature inside or outside a housing of the fuel cell apparatus. In this control method, when the at least two of the steps are all executed, the output of the fuel cell apparatus is reduced by a largest one of amounts of output reduction of the fuel cell apparatus executed by the respective steps.
First claim
Opening claim text (preview).
What is claimed is: 1 . A fuel cell apparatus control method, comprising at least two of the steps of: reducing an output of a fuel cell apparatus that generates power using hydrogen from a hydrogen reservoir device upon a decrease in an amount of hydrogen in the hydrogen reservoir device; reducing the output of the fuel cell apparatus upon an increase in a temperature of a heating medium that collects exhaust heat from the fuel cell apparatus; and reducing the output of the fuel cell apparatus upon an increase in an air temperature inside or outside a housing of the fuel cell apparatus, wherein when the at least two of the steps are all executed, the output of the fuel cell apparatus is reduced by a largest one of amounts of output reduction of the fuel cell apparatus executed in the respective steps. 2 . The fuel cell apparatus control method according to claim 1 , wherein the at least two of the steps are the step of reducing the output of the fuel cell apparatus that generates power using hydrogen from the hydrogen reservoir device upon the decrease in the amount of hydrogen in the hydrogen reservoir device and the step of reducing the output of the fuel cell apparatus upon the increase in the temperature of the heating medium that collects exhaust heat from the fuel cell apparatus, and when the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium are both executed, the output of the fuel cell apparatus is reduced by a larger one of an amount of the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and an amount of the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium. 3 . The fuel cell apparatus control method according to claim 1 , wherein the at least two of the steps are the step of reducing the output of the fuel cell apparatus that generates power using hydrogen from the hydrogen reservoir device upon the decrease in the amount of hydrogen in the hydrogen reservoir device and the step of reducing the output of the fuel cell apparatus upon the increase in the air temperature inside or outside the housing of the fuel cell apparatus, and when the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus are both executed, the output of the fuel cell apparatus is reduced by a larger one of an amount of the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and an amount of the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus. 4 . The fuel cell apparatus control method according to claim 1 , wherein the at least two of the steps are the step of reducing the output of the fuel cell apparatus upon the increase in the temperature of the heating medium that collects exhaust heat from the fuel cell apparatus and the step of reducing the output of the fuel cell apparatus upon the increase in the air temperature inside or outside the housing of the fuel cell apparatus, and when the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium and the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus are both executed, the output of the fuel cell apparatus is reduced by a larger one of an amount of the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium and an amount of the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus. 5 . The fuel cell apparatus control method according to claim 1 , wherein the at least two of the steps are the step of reducing the output of the fuel cell apparatus that generates power using hydrogen from the hydrogen reservoir device upon the decrease in the amount of hydrogen in the hydrogen reservoir device, the step of reducing the output of the fuel cell apparatus upon the increase in the temperature of the heating medium that collects exhaust heat from the fuel cell apparatus, and the step of reducing the output of the fuel cell apparatus upon the increase in the air temperature inside or outside the housing of the fuel cell apparatus, and when the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device, the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium, and the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus are all executed, the output of the fuel cell apparatus is reduced by a largest one of an amount of the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device, an amount of the output reduction of the fuel cell apparatus due to the increase in the temperature of the heating medium, and an amount of the output reduction of the fuel cell apparatus due to the increase in the air temperature inside or outside the housing of the fuel cell apparatus. 6 . A fuel cell apparatus control method comprising at least two of the steps of: reducing the output of the fuel cell apparatus that generates power using hydrogen from the hydrogen reservoir device upon the decrease in the amount of hydrogen in the hydrogen reservoir device; reducing the output of the fuel cell apparatus upon an increase in an amount of heat stored in a heat storage device that stores exhaust heat from the fuel cell apparatus; and reducing the output of the fuel cell apparatus upon the increase in the air temperature inside or outside the housing of the fuel cell apparatus, wherein when the at least two of the steps are all executed, the output of the fuel cell apparatus is reduced by a largest one of amounts of output reduction of the fuel cell apparatus executed in the respective steps. 7 . The fuel cell apparatus control method according to claim 6 , wherein the at least two of the steps are the step of reducing the output of the fuel cell apparatus that generates power using hydrogen from the hydrogen reservoir device upon the decrease in the amount of hydrogen in the hydrogen reservoir device and the step of reducing the output of the fuel cell apparatus upon the increase in the amount of heat stored in the heat storage device that stores exhaust heat from the fuel cell apparatus, and when the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and the output reduction of the fuel cell apparatus due to the increase in the amount of heat stored in the heat storage device are both executed, the output of the fuel cell apparatus is reduced by a larger one of an amount of the output reduction of the fuel cell apparatus due to the decrease in the amount of hydrogen in the hydrogen reservoir device and an amount of the output reduction of the fuel cell apparatus due to the increase in the amount of heat stored in the heat storage device. 8 . The fuel cell apparatus control method according to claim 6 , wherein the at least two of
Assignees
Inventors
Classifications
Electric variables · CPC title
Electric variables · CPC title
Temperature · CPC title
characterised by variables to be controlled · CPC title
Pressure; Ambient pressure; Flow · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2025273712A1 cover?
- A fuel cell apparatus control method includes at least two of the steps of: reducing an output of a fuel cell apparatus that generates power using hydrogen from a hydrogen reservoir device upon a decrease in an amount of hydrogen in the hydrogen reservoir device; reducing the output of the fuel cell apparatus upon an increase in a temperature of a heating medium that collects exhaust heat from …
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04313. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 28 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).