Patent · US Active

Wheel hub drive system

US9073425B2 · kind B2 · utility

5Cited by

3References

12Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Tobias Vogler · Herzogenaurach, DE
Raphael Fischer · Schweinfurt, DE
Mark Lauger · Pretzfeld, DE
Dorothee Stirnweiss · Pommersfelden, DE

Key dates

Filing date	Jul 31, 2012
Grant date	Jul 7, 2015
Priority date	—
Expiry date	Jul 31, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A wheel hub drive system with an electric motor that can be arranged inside a wheel rim, whereby the electric motor is formed by rotor that is at least indirectly joined to a wheel hub and by means of a stationary stator that can be supplied with alternating current. With an eye towards obtaining more space for the vehicle occupants, it is proposed to arrange the converter with its entire power electronics unit on the stator so that the wheel hub drive system can be operated with direct current from the battery of the vehicle, or else no alternating current lines have to be laid in the vehicle. Consequently, the alternating current is generated by the converter that is arranged in a converter housing attached axially next to the stator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.