Fuel cell system and control method of fuel cell
US-2016380295-A1 · Dec 29, 2016 · US
Fuel cell system and method for controlling fuel cell system
US10593973B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10593973-B2 |
| Application number | US-201816028060-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 5, 2018 |
| Priority date | Jul 7, 2017 |
| Publication date | Mar 17, 2020 |
| Grant date | Mar 17, 2020 |
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- Title
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Abstract
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A fuel cell system incorporated in a vehicle includes a fuel cell that uses a reaction gas to generate electric power and a controller. When output restriction that restricts the electric power output by the fuel cell is performed, (a) the controller does not store a content of the performed output restriction as a history in a case where a throttle opening of a throttle is smaller than an opening threshold or an output request is smaller than an output threshold, the output request being issued to the fuel cell and set in accordance with the throttle opening, and (b) the controller stores the content of the performed output restriction as a history in a case where a condition specified in advance is satisfied while the throttle opening is greater than the opening threshold and the output request is greater than the output threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. A fuel cell system incorporated in a vehicle, the fuel cell system comprising: a fuel cell that uses a reaction gas to generate electric power; and a controller that controls an electric power generation performed by the fuel cell, wherein when output restriction that restricts the electric power output by the fuel cell is performed, (a) the controller does not store in a memory of the controller a content of the performed output restriction as a history in a case where: (i) a throttle opening of a throttle is smaller than an opening threshold, (ii) an output request is smaller than an output threshold, or (iii) both the throttle opening of the throttle is smaller than the opening threshold and the output request is smaller than the output threshold, the throttle accepting an instruction of adjusting a speed of the vehicle, the output request being issued to the fuel cell and set in accordance with the throttle opening, and (b) the controller stores in the memory the content of the performed output restriction as the history in a case where a condition specified in advance is satisfied while the throttle opening is greater than the opening threshold and the output request is greater than the output threshold. 2. The fuel cell system in accordance with claim 1 , wherein when the condition specified in advance is satisfied, in a case where a difference between the output request and an output in the performed output restriction is greater than or equal to a tolerance, the controller stores the content of the performed output restriction as the history. 3. The fuel cell system in accordance with claim 1 , wherein once the controller carries out the process (b) of storing the content of the performed output restriction as the history, the controller does not carry out the process (b) until the performed output restriction is removed. 4. A method for controlling a fuel cell system, the fuel cell system being incorporated in a vehicle and including a fuel cell and a controller, the fuel cell using a reaction gas to generate electric power, the controller controlling the fuel cell, the method comprising controlling the fuel cell system such that: when output restriction that restricts the electric power output by the fuel cell is performed, (a) the controller does not store in a memory of the controller a content of the performed output restriction as a history in a case where: (i) a throttle opening of a throttle is smaller than an opening threshold, (ii) an output request is smaller than an output threshold, or (iii) both the throttle opening of the throttle is smaller than the opening threshold and the output request is smaller than the output threshold, the output request being issued to the fuel cell and set in accordance with the throttle opening, and (b) the controller stores in the memory the content of the performed output restriction as the history in a case where a condition specified in advance is satisfied while the throttle opening is greater than the opening threshold and the output request is greater than the output threshold. 5. The method for controlling the fuel cell system in accordance with claim 4 , wherein when the condition specified in advance is satisfied, in a case where a difference between the output request and an output in the performed output restriction is greater than or equal to a tolerance, the controller stores the content of the performed output restriction as the history. 6. The method for controlling the fuel cell system in accordance with claim 4 , wherein once the controller carries out the process (b) of storing the content of the performed output restriction as the history, the controller does not carry out the process (b) until the performed output restriction is removed.
Assignees
Inventors
Classifications
Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title
of fuel cell stacks · CPC title
- H01M8/04298Primary
Processes for controlling fuel cells or fuel cell systems · CPC title
- H01M8/04932Primary
of the individual fuel cell · CPC title
of the individual fuel cell · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10593973B2 cover?
- A fuel cell system incorporated in a vehicle includes a fuel cell that uses a reaction gas to generate electric power and a controller. When output restriction that restricts the electric power output by the fuel cell is performed, (a) the controller does not store a content of the performed output restriction as a history in a case where a throttle opening of a throttle is smaller than an open…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04298. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 17 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).