Patent · US Active

Method for operating a fuel cell system and a fuel cell vehicle

US11171348B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Markus Ruf · Meckenheim, DE
Kai Müller · Ainring, DE

Key dates

Filing date	Nov 25, 2019
Grant date	Nov 9, 2021
Priority date	—
Expiry date	Jan 1, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating a fuel cell system comprising a control unit and at least one fuel cell comprises a cycle of the following steps: recording of an actual U/I characteristic curve of the fuel cell, comparison of the recorded actual U/I characteristic curve of the fuel cell with a target U/I characteristic curve stored in a memory, at least within a predetermined or pre-determinable current range, and determination of the difference between the target U/I characteristic curve and the actual U/I characteristic curve within the current range, comprising the following steps: continuous or clocked repetition of the cycle until the difference reaches or exceeds a predetermined or pre-determinable difference limit value, and adjustment of at least one parameter of the control unit to reduce or minimize the difference.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.