Method for operating a motor vehicle

US7585250B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Harald Braun · Eßlingen, DE
• Norbert Ebner · Ludwigsburg, DE
• Michael Fischer · Regensburg, DE
• Deborah Mowll · Eßlingen, DE
• Torsten Scholt · Stuttgart, DE
• Michael Schopper · Stuttgart, DE

Key dates

• Filing date: Feb 25, 2004
• Grant date: Sep 8, 2009
• Expiry date: Apr 19, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a motor vehicle having an internal combustion engine which has an automatic start/stop device, and a controllable brake device at the start of and during an automatic stop phase, the effect of a braking torque which is greater than a threshold value is ensured. For this purpose, the brake device can increase the braking torque. The threshold value is previously calculated in such a way that the motor vehicle is reliably prevented from rolling away. As a result, the internal combustion engine can be stopped frequently, and at the same time unintentional rolling away of the motor vehicle during the stop phase can be avoided.