Self-propelling work machine and method for braking such a work machine

US9744872B2 · kind B2 · utility

Assignee

• Liebherr-Components Biberach GmbH · DE

Inventors

• Sebastien Nicolas Hoffmann · Colmar, FR
• Burkhard Richthammer · Glückstadt, DE
• Bernd Sommer · Zell am Harmersbach, DE
• Stefan Duelli · Eberhardzell, DE
• Markus Merkle · Munderkingen, DE
• Juergen Resch · Bad Schussenried, DE

Key dates

• Filing date: Sep 9, 2014
• Grant date: Aug 29, 2017
• Expiry date: Sep 9, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/947
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The application describes a self-propelling work machine, in the form of a truck, having an electric drive comprising at least one electric motor, a generator drivable by an internal combustion engine for the power supply of the electric drive, and a braking apparatus for braking the work machine, wherein the braking apparatus provides a regenerative braking by the electric drive and a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the internal combustion engine. The application further describes a method for braking the work machine. A braking control apparatus is provided for an automatic connection of a mechanical brake in dependence on the motor braking power fed back to the internal combustion engine and/or in dependence on the operating state of the internal combustion engine acted on by the fed back motor braking power.