Patent · US Active

Method for controlling an e-compressor and an e-catalyst to reduce emissions from an internal combustion engine

US11692471B1 · kind B1 · utility

0Cited by

0References

12Claims

0Family size

Assignee

Garrett Transportation I Inc. · US

Inventors

Malay Maniar · Sayla, IN
Jens Keuler · Leonberg, DE
Surya Yadla · Schönaich, DE

Key dates

Filing date	May 3, 2022
Grant date	Jul 4, 2023
Priority date	—
Expiry date	May 3, 2042

Classification

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

Abstract

In an internal combustion engine system having an emissions control system including an electrically heated catalyst (E-cat) and an E-compressor (either standalone or part of an E-turbocharger), a method for operating the emissions control system includes predicting that a cold start of the engine is imminent, activating the E-cat and the E-compressor in response to the prediction, and monitoring a characteristic parameter Pe of the E-cat as it changes. The E-compressor speed Nc is regulated to change in proportion to the changing Pe while the E-cat is activated. If no engine start occurs, the E-cat is deactivated, and speed Nc is regulated to track the changing Pe.

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