System and method for diagnosing state of fuel cell stack and controlling fuel cell system
US-2015362560-A1 · Dec 17, 2015 · US
Fuel Cell Vehicle
US2016347200A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016347200-A1 |
| Application number | US-201615160182-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 20, 2016 |
| Priority date | May 27, 2015 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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Abstract
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A fuel cell vehicle includes an accelerating state detector, an electric resistance value detector, a current value detector and a controller. The controller is configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a difference between the determined target current value and the detected current value, and correct the determined target current value in such a manner as to reduce the determined target current value in a case where a value of a function that includes the determined target current value, the determined current increase rate, and the detected electric resistance value becomes larger than a predetermined threshold.
First claim
Opening claim text (preview).
What is claimed is: 1 . A fuel cell vehicle comprising: a fuel cell stack that generates electric power when being supplied with oxidant gas and fuel gas; an accelerating state detector that detects an accelerating state of the vehicle; an electric resistance value detector that detects an electric resistance value of the fuel cell stack; a current value detector that detects a current value of the fuel cell stack; and a controller configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a difference between the determined target current value and the detected current value, and correct the determined target current value in such a manner as to reduce the determined target current value in a case where a value of a function that includes the determined target current value, the determined current increase rate, and the detected electric resistance value becomes larger than a predetermined threshold. 2 . The fuel cell vehicle according to claim 1 , wherein: the value of the function is increased as the determined target current value is increased. 3 . The fuel cell vehicle according to claim 1 , wherein: the value of the function is increased as the determined current increase rate is increased. 4 . The fuel cell vehicle according to claim 1 , wherein: the value of the function is increased as the detected electric resistance value is increased. 5 . The fuel cell vehicle according to claim 1 , wherein: a correction amount to reduce the determined target current value is increased as a difference between the value of the function and the threshold is increased. 6 . A fuel cell vehicle comprising: a fuel cell stack that generates electric power when being supplied with oxidant gas and fuel gas; an accelerating state detector that detects an accelerating state of the vehicle; an electric resistance value detector that detects an electric resistance value of the fuel cell stack; a current value detector that detects a current value of the fuel cell stack; and a controller configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a difference between the target current value and the detected current value, and correct the determined target current value in such a manner as to reduce the determined target current value in a case where at least one value among the determined target current value, the determined current increase rate, and the detected electric resistance value becomes larger than a threshold set for the at least one value. 7 . The fuel cell vehicle according to claim 6 , wherein: a correct amount to reduce the determined target current value is increased as a difference between at least one of the determined target current value, the determined current increase rate, and the detected electric resistance value and the corresponding threshold is increased.
Assignees
Inventors
Classifications
- H01M8/04649Primary
of fuel cell stacks · CPC title
with both reactants being gaseous or vaporised (H01M8/12 takes precedence) · CPC title
Operations & Transport · mapped topic
Polymeric electrolyte materials · CPC title
- B60L11/1881Primary
Operations & Transport · mapped topic
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- What does patent US2016347200A1 cover?
- A fuel cell vehicle includes an accelerating state detector, an electric resistance value detector, a current value detector and a controller. The controller is configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a dif…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04649. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 01 2016 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).