Patent · US Active

Drive device, in particular for an electric vehicle

US10544854B2 · kind B2 · utility

1Cited by

5References

7Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Tobias Schilder · Ludwigsburg, DE
Josep Maria BOU ROMANO · Stuttgart, DE
Klaus Riedl · Bingen, DE
Tobias Haerter · Stuttgart, DE

Key dates

Filing date	Mar 2, 2017
Grant date	Jan 28, 2020
Priority date	—
Expiry date	Mar 2, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/62
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An electric vehicle drive includes an electric motor, an axle drive and a multistep reduction gear that is arranged between the electric motor and the axle drive, is intended in structural terms for shifting at least two forward gears, and includes precisely three planetary gear stages that are operatively interconnected includes sun gears, internal gears and planet carriers, a transmission input element for attaching the electric motor for conjoint rotation, and a transmission output element for attaching the axle drive for conjoint rotation. The transmission input element being permanently connected to the sun gear of the first planetary gear stage for conjoint rotation. The transmission output element being permanently connected to the planet carrier of the third planetary gear stage for conjoint rotation. At least the planet carrier of the first planetary gear stage and the sun gear of the third planetary gear stage are permanently interconnected for conjoint rotation.

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