The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Jun. 16, 2022
System and methods for determining a stack current request based on fuel cell operational conditions
Hyster-yale Group, Inc., Fairview, OR (US);
Jacob Bryant, Portland, OR (US);
John Robey, Clackamas, OR (US);
Troy Fox, Tigard, OR (US);
Chenyao Chen, Portland, OR (US);
Tabassum Hossainy, Portland, OR (US);
David Brisbine, Sandy, OR (US);
Hyster-Yale Group, Inc., Fairview, OR (US);
Abstract
A stack current controller may be configured to determine a stack current request based on a state of charge of a battery, an error based on a difference between an actual coolant temperature and a coolant temperature setpoint, or both. A plurality of stack current levels may be implemented corresponding to different battery state-of-charge thresholds. The determined stack current magnitude may be the lowest current magnitude that provides sufficient heat to maintain a coolant temperature at the coolant temperature setpoint or within the coolant temperature threshold. The determined stack current magnitude may be the highest current magnitude that provides sufficient power while maintaining a coolant temperature at the coolant temperature setpoint or within the coolant temperature threshold.