Drivetrain on a motor vehicle and method for controlling a drivetrain

US7074156B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Friedrich Graf · Eggenfelden, DE
• Stefan Lauer · Erlangen, DE

Key dates

• Filing date: Jun 8, 2004
• Grant date: Jul 11, 2006
• Expiry date: Jun 8, 2024

Classification

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

Abstract

The drivetrain of a motor vehicle with an engine, a crankshaft starter-generator, a hydrodynamic torque converter and an automatic gearbox, comprises an overriding drivetrain controller (20) with a driver and situation recognition (31), a status controller (34) and a torque management (35). The controller carries out the following functions: a start-stop operation, an increase in engine torque, a rolling of the vehicle on a non-engaged drivetrain and a regenerative braking operation.