Hybrid drive train, hybrid vehicle, and operating method

US9353700B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Torsten Dieler · Stuttgart, DE
• Dirk Haase · Leutenbach, DE
• Ruediger Herweg · Eßlingen, DE
• Gerd Kroener · Backnang, DE
• Friedemann Wolpers · Neukirchen, DE

Key dates

• Filing date: Dec 15, 2011
• Grant date: May 31, 2016
• Expiry date: Jul 9, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/902
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating a hybrid drive train involves operating an internal combustion engine using a low-NOx operating method in a range of low and average rotational speeds and/or loads, and operating the internal combustion engine using a spark ignition operating method in a range of higher rotational speeds and/or loads.