Belt pulley arrangement for a belt drive for driving auxiliary units of a motor vehicle and method for driving an auxiliary unit of a motor vehicle connected via a belt pulley arrangement

US9915198B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Oliver Dippold · Nuremberg, DE
• Vladimir Baranov · Herzogenaurach, DE
• Ralf Wagner · Solingen, DE
• Bernd Hartmann · Weisendorf, DE
• Laszlo Man · Bühl, DE

Key dates

• Filing date: Aug 5, 2013
• Grant date: Mar 13, 2018
• Expiry date: May 21, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19014
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A belt pulley arrangement for a belt drive to drive auxiliary units of a motor vehicle, having a belt pulley for introducing a torque that can be provided via a flexible drive means, an output shaft for driving an auxiliary unit, in particular a cooling water pump, and an electric machine for the transmission of torque between the belt pulley and the output shaft, wherein the electric machine has a rotor connected to the belt pulley and a stator connected to the output shaft. As a result of the power flow between the belt pulley and the output shaft, which can be influenced by the electric machine, it is not necessary to design the auxiliary unit that is attached via the output shaft for the least beneficial operating point, so that the auxiliary unit can be dimensioned smaller and a reduction in the installation space for motor vehicle components, in particular the installation space for auxiliary units of a motor vehicle that can be driven via the belt drive, is made possible.