Method for operating a piston engine, and piston engine

US11845338B2 · kind B2 · utility

Assignee

• Rolls-Royce Solutions, GmbH · DE

Inventors

• Helmut Knabe · Friedrichshafen, DE
• Horst Weidele · Meersburg, DE
• Aron Toth · Friedrichshafen, DE

Key dates

• Filing date: Dec 16, 2020
• Grant date: Dec 19, 2023
• Expiry date: May 14, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/1002
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for operating an internal combustion engine. The method includes providing a piston engine. The piston engine includes a crankshaft and a torque sensor system. The torque sensor system includes at least one first rotary angle sensor and at least one second rotary angle sensor. The method further includes measuring a first and a second rotary angle in a spacing region and determining an angular offset between the first and the second rotary angle. The angular offset results from the torsion of the loaded crankshaft wherein the spacing region is limited along the crankshaft to an actual partial region of the spacing between the bearing journals. The partial region includes an actual subgroup of at least one of the number of offsets and the number of shaft journals, so that the angular offset is assigned to the actual subgroup.