Drive unit for an electric vehicle and drive axle with a drive unit

US11124064B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Johannes Kaltenbach · Friedrichshafen, DE
• Stefan Renner · Leonberg, DE
• Kai Bornträger · Tettnang, DE
• Michael Trübenbach · Friedrichshafen, DE
• Stefan Spühler · Friedrichshafen, DE
• Johannes Glückler · Friedrichshafen, DE

Key dates

• Filing date: Mar 6, 2020
• Grant date: Sep 21, 2021
• Expiry date: Mar 6, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2097
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A drive unit for an electric vehicle, having an electric machine and a three-speed shift transmission with first, second and third shift elements, and two planetary sets which are coupled with each other. The first planetary set has a first sun gear shaft, first ring gear shaft and a first carrier shaft. The second planetary set has a second sun gear shaft, a second ring gear shaft and second carrier shaft. The first carrier shaft is fixed to the second ring gear shaft. The first sun gear shaft can be driven by an electric machine. The first ring gear shaft is fixed and output takes place via the second carrier shaft. The first shift elements are actuated to engage a first gear, the second shift elements are actuated to engage the second gear and the third shift elements are actuated to engage the third gear.