Patent · US Active

Method for operating a vehicle with a fuel cell unit

US10946712B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Johannes Weis · Neubukow, DE
Thomas LICHIUS · Gaimersheim, DE
Thomas WEUSTENFELD · Saratoga Springs, US

Key dates

Filing date	Oct 5, 2018
Grant date	Mar 16, 2021
Priority date	—
Expiry date	Mar 5, 2039

Classification

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

Abstract

A vehicle includes a fuel cell unit with which is associated a first coolant circuit, with a second coolant circuit associated with the interior of the vehicle, in which is held a coolant of lower temperature relative to the coolant of the first coolant circuit. Given higher demand for cooling capacity in the first coolant circuit, a valve is opened by a control device, independently of the heat demand in the second coolant circuit, to open a first connecting conduit between the first coolant circuit and the second coolant circuit, and thus, using a second connecting conduit, forms a common ring conduit for the first coolant circuit and the second coolant circuit with the accumulated coolant from the first coolant circuit and the second coolant circuit.

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