Patent · US Active

Method for heating an exhaust system

US12276220B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jonas Ernst · Stuttgart, DE
Michael Bachner · Stuttgart, DE
Tahir Harman · Tamm, DE
Thomas Zein · Sindelfingen, DE

Key dates

Filing date	Mar 18, 2024
Grant date	Apr 15, 2025
Priority date	—
Expiry date	Mar 18, 2044

Classification

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

Abstract

A method for heating an exhaust system downstream from an internal combustion engine using an electrical heating device. The method includes an ascertainment of a current temperature in the exhaust system, an ascertainment of a current temperature of the electrical heating device and a fluid mass flow flowing through the electrical heating device, an ascertainment of a heating requirement based on the ascertained current temperature and a target temperature, a calculation of a required amount of heat depending on the heating requirement and an amount of energy required to heat up the electrical heating device, taking into account a heat input into the fluid mass flow to be expected at the ascertained current temperature of the electrical heating device, and a control of the electrical heating device to generate the calculated amount of heat. A computing unit and a computer program are also described.

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