Use of an anode catalyst layer
US-2015372315-A1 · Dec 24, 2015 · US
Redundancy for improved stack health monitoring reliability
US8990034B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990034-B2 |
| Application number | US-201213550915-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 17, 2012 |
| Priority date | Jul 17, 2012 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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A health monitoring system for a fuel cell stack using current fuel cell architecture to enable the electronic control unit (ECU) to continue to monitor the health of the fuel cell stack despite a component failure. The system uses an embedded measurement module (EMM) connected to a group of fuel cells in the fuel cell stack to monitor the health of that group of fuel cells. The EMM produces a pulse width modulation signal that is sent to the ECU. A total voltage value for the group of fuel cells is embedded into the calibration signal or end of frame sequence. The ECU uses an algorithm to determine a missing voltage of at least one fuel cell in the event of the component failure of that fuel cell by adding up the cumulative value for each fuel cell reporting their voltage and subtracting that value from the total voltage value found in the end of frame sequence.
First claim
Opening claim text (preview).
We claim: 1. A health monitoring system for a fuel cell stack, the system comprising: an embedded measurement module comprising: a cell voltage monitoring circuit comprising: a communication module; and a pulse generator configured to send a plurality of pulses and an end of frame sequence to a receiver circuit, each pulse in the plurality of pulses corresponding to an individual voltage for each fuel cell in the fuel cell stack, the end of frame sequence indicating the beginn…
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- H01M8/04298Primary
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8990034B2 cover?
- A health monitoring system for a fuel cell stack using current fuel cell architecture to enable the electronic control unit (ECU) to continue to monitor the health of the fuel cell stack despite a component failure. The system uses an embedded measurement module (EMM) connected to a group of fuel cells in the fuel cell stack to monitor the health of that group of fuel cells. The EMM produces a …
- Who is the assignee on this patent?
- Rock Jeffrey A, Reed David J, Kaye Kenneth L, and 1 more
- 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 24 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).