Method for controlling the start-up phase of a motor vehicle

US8297249B2 · kind B2 · utility

Assignees

• AVL LIST GMBH · AT
• Getrag Innovationscenter Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & CIE KG · DE
• Thien eDrives GmbH · AT

Inventors

• Martin Seufert · Steinheim, DE
• Frank Thullner · Untergruppenbach, DE
• Ralph Richter · St. Georgen, DE
• Josef Glatthaar · Obermoschel, DE
• Roberto Tirelli · Bari, IT
• Vincenzo De Gioia · Molfetta, IT
• Reinhard Klein · Villingen-Schwenningen, DE
• Jurgen Wagner · Asselfingen, DE
• Richard J. Schneider · Las Vegas, US
• Gusztav Gulyas · Graz, AT
• Peter R. Ebner · Graz, AT
• Stefan Strobl · Maria Saal, AT

Key dates

• Filing date: Oct 8, 2009
• Grant date: Oct 30, 2012
• Expiry date: Nov 29, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/64
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for controlling the start-up phase of a motor vehicle driven by an internal combustion engine (12). The internal combustion engine (12) is started by an electrical machine (16) that can be operated as a motor, and there is a preferably automatically actuatable clutch (50) in the drive train (11) between the internal combustion engine (12) and the electrical machine (16). A faster start-up response can be achieved if the internal combustion engine (12) is driven by the electrical machine (16) when the clutch (50) is engaged during start-up, and if the clutch capacitance (MK) is reduced according to a defined parameter, preferably the engine speed, the time or the torque (ME) of the electrical machine (16) or similar.