Operating strategy for hybrid vehicles for the implementation of a load point shift, a recuperation and a boost

US10029691B2 · kind B2 · utility

Assignee

• Deere & Company · US

Inventors

• Jochen Barthel · Schechen, DE
• Philipp Muench · Kaiserslautern, DE
• Markus Bell · Edingen-Neckarhausen, DE
• Daniel Goerges · Birkheim, DE

Key dates

• Filing date: Oct 26, 2015
• Grant date: Jul 24, 2018
• Expiry date: Aug 30, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/93
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A hybrid drive includes a combustion engine, a generator driven by the combustion engine, a charge storage unit, and an electric engine. The hybrid drive can be driven in a load point shifting mode, a recuperation mode, and a boost mode. In the load point shifting mode, a power or torque distribution regulator specifies the torques supplied by the combustion engine and the electric engine in the sense of a maintenance of a predetermined theoretical value of the charging state of the charge storage unit. The theoretical value of the charging state of the charge storage unit is shifted in the load point shifting mode, as a function of the charging state changes of the charge storage unit in a previously carried out recuperation or boost mode.