US 2026/0100389 A1 · FUEL CELL VEHICLE AND METHOD OF CONTROLLING THE SAME

Abstract

Disclosed are a fuel cell vehicle and a method of controlling the same. The fuel cell vehicle includes a battery, a cell stack configured to provide stack voltage, a load connected to the battery and the cell stack, a multiphase converter configured to adjust a voltage range between the cell stack and the battery and including first to Nth (where N is a positive integer of 2 or greater) current paths connected to the cell stack and connected in parallel to each other, and a main controller configured to control the multiphase converter to allow alternating current to sequentially flow through the first to Nth current paths when measurement of the impedance of the cell stack is required.

Claims14

Dependent claims

A fuel cell vehicle, comprising:

a battery;
a cell stack configured to provide stack voltage;
a load connected to the battery and the cell stack;
a multiphase converter configured to adjust a voltage range between the cell stack and the battery, the multiphase converter including a first current path to an Nth current path, wherein N is a positive integer of 2 or greater, connected to the cell stack and connected in parallel to each other;
and
a main controller configured to control the multiphase converter to allow alternating current to sequentially flow through the first to the Nth current paths when measurement of an impedance of the cell stack is required.

3 more elements

A method of controlling a fuel cell vehicle comprising a battery, a cell stack configured to provide stack voltage, a load connected to the battery and the cell stack, and a multiphase converter configured to adjust a voltage range between the cell stack and the battery, the multiphase converter including a first current path to an Nth current path, wherein N is a positive integer of 2 or greater, connected to the cell stack and connected in parallel to each other, the method comprising:

providing alternating current for measurement of an impedance of the cell stack to the multiphase converter when operation of the multiphase converter is required;
and
controlling the multiphase converter to allow alternating current to sequentially flow through the first to Nth current paths of the multiphase converter when measurement of an impedance of the cell stack is required.

Dependencies are inferred from the claim text.

Facts

Application

19/205,543Filed 12 May 2025

Priority

KR 10-2024-01369778 Oct 2024

Published

9 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

H01M 8/04953
Other electric variables, e.g. resistance or impedance: of auxiliary devices, e.g. batteries, capacitors
B60L 50/40
Electric propulsion with power supplied within the vehicle: using propulsion power supplied by capacitors
B60L 50/75
Using propulsion power supplied by batteries or fuel cells: using propulsion power supplied by both fuel cells and batteries
B60L 58/40
Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles: for controlling a…

Fuel cell vehicle and method of controlling the same

Life of this patent

Fuel cell vehicle and method of controlling the same

Life of this patent

Abstract

Claims14