Method for controlling a drive of a hybrid vehicle

US7510500B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Peter Antony · Lorch, DE
• Wolf Boll · Waiblingen, DE

Key dates

• Filing date: Jul 28, 2004
• Grant date: Mar 31, 2009
• Expiry date: Jul 28, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/62
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for controlling a drive (16) of a motor vehicle having an internal combustion engine (10) and an electric motor (24). A main transmission (16) having an output shaft (18) is connected to a driveshaft (19) of the motor vehicle, and an input shaft (14) is connected to the internal combustion engine (10). The electric motor (24) is coupled to the input shaft (14) or the output shaft (16) of the main transmission (16) by an intermediate transmission (22) having at least two transmission ratio steps. In order to accelerate the motor vehicle from rest, the drive is initially effected solely by the electric motor (24) with the intermediate transmission (22) in its lowest transmission ratio step. The drawing is then taken over by the internal combustion engine (10) before a shift operation in the intermediate transmission (22). In this case, the intermediate transmission (22) is preferably a claw shift transmission.