Drive system for a land craft

US9221326B2 · kind B2 · utility

Assignee

• L-3 COMMUNICATIONS MAGNET-MOTOR GMBH · DE

Inventors

• Jens Steffen · Frankfurt am Main, DE
• Roland Hagenlocher · Planegg, DE
• Peter Ehrhart · Birkenfeld, DE
• Harald Tamm · Polling, DE

Key dates

• Filing date: Mar 14, 2012
• Grant date: Dec 29, 2015
• Expiry date: Mar 24, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/72
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A drive system (DS) for a land craft comprises a machine system (M1, M2) for driving the land craft, the machine system comprising at least a first and a second electric machine (M1, M2) acting on a common drive shaft (S) for driving the land craft, and a control device (PE, PE1, PE2) which is adapted to control the machine system for operating in at least two rotating speed operation ranges (OR1, OR2) with different rotating speeds of the drive shaft (S). The first electric machine (MI) is controlled to operate in both rotating speed operation ranges (OR1, OR2) to provide a first drive torque, and the second electric machine (M2) is controlled to operate in only one of the rotating speed operation ranges (OR1) to provide a second drive torque in addition to the first drive torque.