Active discharge of an electric drive system

US11932123B2 · kind B2 · utility

Assignee

• POWER INTEGRATIONS, INC. · US

Inventors

• Christoph Dustert · Soest, DE
• Andreas Volke · Soest, DE
• Klaus Harmann · Dressendorf, DE

Key dates

• Filing date: Sep 14, 2022
• Grant date: Mar 19, 2024
• Expiry date: Sep 14, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2250/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Discharge systems for electric vehicles and electric vehicles having discharge systems. In one implementation, a discharge system for an electric vehicle includes a step-down power converter configured to step down an input voltage to an output voltage; discharge circuitry coupled to the output of the step-down power converter, wherein the discharge circuitry is reversibly driveable to load the step-down power converter; an input component configured to receive input that originated from a human user or a sensor of the electric vehicle, wherein the input indicates that the electric vehicle is to shutdown; and discharge drive circuitry configured to drive the discharge circuitry to load the step-down power converter in response to the indication that the electric vehicle is to shutdown.