Hybrid driving system for a motor vehicle

US7637333B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Andreas Grundl · Hersbruck, DE
• Bernhard Hoffmann · Starnberg, DE
• Reinhard Rasch · Murnau am Staffelsee, DE
• Friedrich Mortl · Starnberg, DE
• Hans Glonner · Brackenheim, DE
• Georg Götz · Taufkirchen, DE
• Jörg Michael · Ingolstadt, DE
• Markus Kaindl · Neubiberg, DE

Key dates

• Filing date: Oct 14, 2003
• Grant date: Dec 29, 2009
• Expiry date: Aug 19, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/906
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.