Flexible method for monitoring fuel cell voltage
This invention relates to a fuel cell system, and more particularly to a system having a plurality of cells which consume an H -rich gas to produce power for vehicle propulsion. A method for equalizing the measured voltage of each cluster in a fuel cell stack wherein at least one of the clusters has...
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| creator | Mowery, Kenneth D Ripley, Eugene V |
| description | This invention relates to a fuel cell system, and more particularly to a system having a plurality of cells which consume an H
-rich gas to produce power for vehicle propulsion.
A method for equalizing the measured voltage of each cluster in a fuel cell stack wherein at least one of the clusters has a different number of cells than the identical number of cells in the remaining clusters by creating a pseudo voltage for the different cell numbered cluster. The average cell voltage of the all of the cells in the fuel cell stack is calculated and multiplied by a constant equal to the difference in the number of cells in the identical cell clusters and the number of cells in the different numbered cell cluster. The resultant product is added to the actual voltage measured across the different numbered cell cluster to create a pseudo voltage which is equivalent in cell number to the number of cells in the other identical numbered cell clusters. |
| format | Patent |
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-rich gas to produce power for vehicle propulsion.
A method for equalizing the measured voltage of each cluster in a fuel cell stack wherein at least one of the clusters has a different number of cells than the identical number of cells in the remaining clusters by creating a pseudo voltage for the different cell numbered cluster. The average cell voltage of the all of the cells in the fuel cell stack is calculated and multiplied by a constant equal to the difference in the number of cells in the identical cell clusters and the number of cells in the different numbered cell cluster. The resultant product is added to the actual voltage measured across the different numbered cell cluster to create a pseudo voltage which is equivalent in cell number to the number of cells in the other identical numbered cell clusters.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6455180$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,780,802,885,64037</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6455180$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Mowery, Kenneth D</creatorcontrib><creatorcontrib>Ripley, Eugene V</creatorcontrib><creatorcontrib>General Motors Corporation</creatorcontrib><title>Flexible method for monitoring fuel cell voltage</title><description>This invention relates to a fuel cell system, and more particularly to a system having a plurality of cells which consume an H
-rich gas to produce power for vehicle propulsion.
A method for equalizing the measured voltage of each cluster in a fuel cell stack wherein at least one of the clusters has a different number of cells than the identical number of cells in the remaining clusters by creating a pseudo voltage for the different cell numbered cluster. The average cell voltage of the all of the cells in the fuel cell stack is calculated and multiplied by a constant equal to the difference in the number of cells in the identical cell clusters and the number of cells in the different numbered cell cluster. The resultant product is added to the actual voltage measured across the different numbered cell cluster to create a pseudo voltage which is equivalent in cell number to the number of cells in the other identical numbered cell clusters.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZDBwy0mtyEzKSVXITS3JyE9RSMsvUsjNz8ssyS_KzEtXSCtNzVFITs3JUSjLzylJTE_lYWBNS8wpTuWF0twMCm6uIc4euqXFBYklqXklxfHpRYkgysDMxNTU0MLAmAglADmPLDY</recordid><startdate>20020924</startdate><enddate>20020924</enddate><creator>Mowery, Kenneth D</creator><creator>Ripley, Eugene V</creator><scope>EFH</scope></search><sort><creationdate>20020924</creationdate><title>Flexible method for monitoring fuel cell voltage</title><author>Mowery, Kenneth D ; Ripley, Eugene V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_064551803</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Mowery, Kenneth D</creatorcontrib><creatorcontrib>Ripley, Eugene V</creatorcontrib><creatorcontrib>General Motors Corporation</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Mowery, Kenneth D</au><au>Ripley, Eugene V</au><aucorp>General Motors Corporation</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Flexible method for monitoring fuel cell voltage</title><date>2002-09-24</date><risdate>2002</risdate><abstract>This invention relates to a fuel cell system, and more particularly to a system having a plurality of cells which consume an H
-rich gas to produce power for vehicle propulsion.
A method for equalizing the measured voltage of each cluster in a fuel cell stack wherein at least one of the clusters has a different number of cells than the identical number of cells in the remaining clusters by creating a pseudo voltage for the different cell numbered cluster. The average cell voltage of the all of the cells in the fuel cell stack is calculated and multiplied by a constant equal to the difference in the number of cells in the identical cell clusters and the number of cells in the different numbered cell cluster. The resultant product is added to the actual voltage measured across the different numbered cell cluster to create a pseudo voltage which is equivalent in cell number to the number of cells in the other identical numbered cell clusters.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Flexible method for monitoring fuel cell voltage |
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