Power-split driveline for a work machine

US10184548B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Benedikt Reick · Friedrichshafen, DE
• Raphael Himmelsbach · Friedrichshafen, DE

Key dates

• Filing date: Apr 6, 2017
• Grant date: Jan 22, 2019
• Expiry date: Jul 28, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/201
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A power-split drive train for a working machine having a main drive element, drive output shafts (Ab1, Ab2, Ab3), and a continuous power-split transmission with three drive units (2a, 2b, 2c). The transmission enables all three output shafts to be operated at the same time with rotational speed variability. A first drive unit (2a) has two energy converters while second and third drive units (2b, 2c) each comprise one energy converter. All four energy converters are functionally connected to an electric line. The first unit (2a) is connected, via a first shaft, to the main drive element and, via a second shaft, to output shaft (Ab1). The first unit (2a) is connected to drive unit (2b) which is connected, via a third shaft, to output shaft (Ab2). The first drive unit (2a) is connected to drive unit (2c) which is connected, via a fourth shaft, to output shaft (Ab3).