Method and system for the regulation and/or control of an engine gearbox unit in a motor vehicle

US7096106B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Helmut Krenn · Unterföhring, DE
• Lothar Wolf · Munich, DE
• Hubert Schumacher · Augsburg, DE

Key dates

• Filing date: Mar 25, 2005
• Grant date: Aug 22, 2006
• Expiry date: Mar 25, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2710/105
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for regulating and/or controlling an engine-transmission unit in a motor vehicle includes prioritizing torque demands to obtain an only torque value, storing the only torque value as a current successful situation and retaining the torque value for the previous successful situation, and processing the torque value of the current successful situation as well as the torque value of the previous successful situation to comparable torque values in each case required for the implementation of the demands. The method farther includes changing a desired torque demand at driving wheels of the motor vehicle from the torque value of the previous successful situation to the torque value of the current successful situation in the event of a priority change when the current successful situation is different from the previous successful situation, sending the desired torque demand to an electronic controller, and carrying out the desired torque demand by controlling at least one of engine parameters and a ratio of a transmission unit.