Method of operating a fuel cell during a soak time period
US-2020220183-A1 · Jul 9, 2020 · US
Voltage-based fuel cell control
US11848466B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11848466-B2 |
| Application number | US-202217669886-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 11, 2022 |
| Priority date | Feb 11, 2022 |
| Publication date | Dec 19, 2023 |
| Grant date | Dec 19, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A fuel cell system has a fuel cell stack including a plurality of fuel cells and an anode injector system, and a controller programmed. The controller, responsive to an amplitude of cyclic changes in voltage of at least some of the fuel cells exceeding a threshold, a frequency of the cyclic changes being within a predetermined range of a frequency associated with the anode injector system, and the voltage being less than a predetermined value, disables the fuel cell stack.
First claim
Opening claim text (preview).
What is claimed is: 1. A vehicle comprising: a fuel cell system configured to produce electric current; and a controller programmed to, responsive to an amplitude of cyclic changes in voltage associated with the fuel cell system exceeding a threshold, a frequency of the cyclic changes being within a predetermined range of a frequency associated with an anode injector of the fuel cell system, and the voltage being less than a predetermined value, reduce a magnitude of the electric current, and responsive to the amplitude exceeding the threshold, the frequency of the cyclic changes being within the predetermined range, and the voltage being greater than the predetermined value, maintain the magnitude of the electric current. 2. The vehicle of claim 1 , wherein the controller is further programmed to, responsive to the amplitude exceeding the threshold, the frequency of the cyclic changes being within the predetermined range, and the voltage being less than the predetermined value, disable the fuel cell system. 3. The vehicle of claim 1 , wherein the controller is further programmed to, responsive to the amplitude exceeding the threshold, the frequency of the cyclic changes being within the predetermined range, and the voltage being less than the predetermined value, increase a concentration of hydrogen in anodes of the fuel cell system. 4. The vehicle of claim 1 , wherein the frequency associated with the anode injector system is a frequency of pressure pulses resulting from operation of the anode injector system. 5. The vehicle of claim 1 , wherein the frequency associated with the anode injector system is a frequency associated with commands to actuate the anode injector system. 6. The vehicle of claim 1 , wherein the frequency associated with the anode injector system is a frequency of changes in current associated with actuation of the anode injector system.
Assignees
Inventors
Classifications
- H01M8/04955Primary
Shut-off or shut-down of fuel cells · CPC title
of anode reactants at the inlet or inside the fuel cell · CPC title
of fuel cell stacks · CPC title
Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title
- B60L50/70Primary
using power supplied by fuel cells (in combination with batteries B60L50/75) · CPC title
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- What does patent US11848466B2 cover?
- A fuel cell system has a fuel cell stack including a plurality of fuel cells and an anode injector system, and a controller programmed. The controller, responsive to an amplitude of cyclic changes in voltage of at least some of the fuel cells exceeding a threshold, a frequency of the cyclic changes being within a predetermined range of a frequency associated with the anode injector system, and …
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04955. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 19 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).