Patent · US Active

Method for heating an exhaust system

US11834977B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Bachner · Stuttgart, DE
Jonas Ernst · Stuttgart, DE
Rolf-Dieter Koch · Ditzingen, DE
Tahir Harman · Tamm, DE
Thomas Zein · Sindelfingen, DE
Uwe Kossatz · Strohberg, DE

Key dates

Filing date	Nov 16, 2022
Grant date	Dec 5, 2023
Priority date	—
Expiry date	Nov 16, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method (200) for heating an exhaust system (120) downstream of an internal combustion engine (1) by means of an electric heating device (14, 15). In one example, the method includes determining a current temperature (t_EHC, t_EHC{circumflex over ( )}Us, t_Cat) in the exhaust system (120), determining a heating demand (t_EHC{circumflex over ( )}Des) based on the determined current temperature (t_Cat) and a target temperature, calculating a required amount of heat (Pwr{circumflex over ( )}Des) on the basis of the heating demand and an amount of energy required to heat the electric heating device (14, 15), and controlling (Pwr{circumflex over ( )}Req) the electric heating device (14, 15) to generate the calculated amount of heat.

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