Patent · US Active

Method for providing a power supply for at least one electrically heatable catalyst of a motor vehicle situated in an exhaust gas tract, and a motor vehicle comprising at least one electrically heatable catalyst situated in an exhaust gas tract of the motor vehicle

US11668216B2 · kind B2 · utility

0Cited by

1References

6Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Markus Fischer · Offenburg, DE
Christian Glück · Eichstätt, DE
Thomas Hackner · Greding, DE
Viktor Kell · Neustadt, DE

Key dates

Filing date	Feb 14, 2022
Grant date	Jun 6, 2023
Priority date	—
Expiry date	Feb 14, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2900/1631
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method for providing a power supply for at least one electrically heatable catalyst of a motor vehicle situated in an exhaust gas tract, wherein the motor vehicle comprises a first battery, by means of which a first voltage U1 is generated, and a second battery, by way of which a second voltage U2 is generated, wherein the at least one catalyst during a start phase immediately following the start of an internal combustion engine of the motor vehicle is supplied by a power P1 provided by the first battery such that the voltage U1 of the first battery is imposed on the at least one catalyst, wherein the at least one catalyst is additionally supplied during the start phase by a power P2 provided by the second battery such that the voltage U2 of the second battery is transformed by a DC converter to the value of the voltage U1 which is imposed on the at least one catalyst.

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