Method for ascertaining an accuracy of a torque transmitted by a belt-driven starter generator of an internal combustion engine to the internal combustion engine

US10458350B2 · kind B2 · utility

Assignees

• Robert Bosch GmbH · DE
• SEG Automotive Germany GmbH · DE

Inventors

• Benjamin Klein · Great Neck, US
• Tobias Trzebiatowski · Gerlingen, DE
• Andreas Greis · Stuttgart, DE
• Bernd Schroeder · Eßlingen, DE
• Istvan Deak · Ludwigsburg, DE
• Mario Kaepple · Bobingen, DE
• Martin Henger · Tamm, DE

Key dates

• Filing date: Jun 15, 2016
• Grant date: Oct 29, 2019
• Expiry date: Aug 3, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2007/0893
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for ascertaining an accuracy of a torque transmitted by a belt-driven starter generator of an internal combustion engine to the internal combustion engine, the method being similar to a learning operation or a calibration of the actual torque of the starter generator with respect to a setpoint torque, includes: in an idling instance of the internal combustion engine, controlling the belt-driven starter generator to transmit a specified test torque to the internal combustion engine and decreasing the torque of the internal combustion engine by the specified test torque; determining and evaluating a speed variable, which is a function of a speed of the internal combustion engine; and deducing the torque accuracy from the evaluated speed variable.