The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
Mar. 14, 2012
Jens Steffen, Pürgen, DE;
Roland Hagenlocher, Planegg, DE;
Peter Ehrhart, München, DE;
Harald Tamm, Polling, DE;
Jens Steffen, Pürgen, DE;
Roland Hagenlocher, Planegg, DE;
Peter Ehrhart, München, DE;
Harald Tamm, Polling, DE;
L-3 COMMUNICATIONS MAGNET-MOTOR GMBH, Starnberg, DE;
Abstract
A drive system (DS) for a land craft comprises a machine system (M, M) for driving the land craft, the machine system comprising at least a first and a second electric machine (M, M) acting on a common drive shaft (S) for driving the land craft, and a control device (PE, PE, PE) which is adapted to control the machine system for operating in at least two rotating speed operation ranges (OR, OR) with different rotating speeds of the drive shaft (S). The first electric machine (MI) is controlled to operate in both rotating speed operation ranges (OR, OR) to provide a first drive torque, and the second electric machine (M) is controlled to operate in only one of the rotating speed operation ranges (OR) to provide a second drive torque in addition to the first drive torque.