Method and device for operating a drive system including an internal combustion engine

US10174689B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Florian Schmitt · Bonn, DE
• Udo Schulz · Gießen, DE

Key dates

• Filing date: Aug 22, 2016
• Grant date: Jan 8, 2019
• Expiry date: Sep 1, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating a drive system including an internal combustion engine, the drive system including an electromotively-assisted exhaust-driven supercharging device or a strictly electrically operated supercharging device, the method including checking on whether a gear change has been initiated and a drive train has been disengaged accordingly; upon detecting an initiated gear change, adjusting the compressor power of the supercharging device by additionally facilitating electric power to the electromotively-assisted exhaust-driven supercharging device or to the strictly electrically operated supercharging device, in such a way that, at least toward the end of the gear change, a charging pressure is made available in a charging pressure section of the drive system which is higher than a charging pressure resulting at a compressor power, which corresponds to the exhaust gas enthalpy of the internal combustion engine provided during the gear change.