Method for operating an electric vehicle and electric vehicle

US11964570B2 · kind B2 · utility

Assignee

• SEW-EURODRIVE GMBH & CO. KG · DE

Inventors

• Jens Schafer · Herzogenaurach, DE
• Jan Becker · Palo Alto, US
• Gero Bockelmann · Bruchsal, DE
• Matthias Hauck · Schwetzingen, DE
• Christian Schumann · Gießen, DE
• Josef Schmidt · Graben-Neudorf, DE

Key dates

• Filing date: Dec 2, 2020
• Grant date: Apr 23, 2024
• Expiry date: Mar 3, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a method for operating an electric vehicle, including an electrical drive device for driving the vehicle, a control device for controlling the driving of the vehicle, a first energy storage device for supplying the control device with a first DC voltage, a second energy storage device for supplying the drive device with a second DC voltage, and an energy supply unit providing an output DC voltage, the first energy storage device is connected to the energy supply unit via a converter device, the second energy storage device is connected to the energy supply unit, the converter device converts the output DC voltage into the first DC voltage, a first power flow from the first energy storage device to the second energy storage device is prevented and a second power flow from the second energy storage device to the first energy storage device is prevented.