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:
May. 31, 2016
Filed:
Dec. 15, 2011
Applicants:
Torsten Dieler, Stuttgart, DE;
Dirk Haase, Leutenbach, DE;
Ruediger Herweg, Esslingen, DE;
Gerd Kroener, Aspach-Grossaspach, DE;
Friedemann Wolpers, Urbach, DE;
Inventors:
Torsten Dieler, Stuttgart, DE;
Dirk Haase, Leutenbach, DE;
Ruediger Herweg, Esslingen, DE;
Gerd Kroener, Aspach-Grossaspach, DE;
Friedemann Wolpers, Urbach, DE;
Assignee:
Daimler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 7/12 (2006.01); F02D 43/04 (2006.01); F02D 41/30 (2006.01); F02D 13/02 (2006.01); F02D 15/00 (2006.01); B60W 20/00 (2016.01);
U.S. Cl.
CPC ...
F02D 43/04 (2013.01); B60W 20/1082 (2013.01); F02D 13/0207 (2013.01); F02D 15/00 (2013.01); F02D 41/3041 (2013.01); B60W 2510/0657 (2013.01); B60W 2710/083 (2013.01); Y02T 10/18 (2013.01); Y10S 903/902 (2013.01);
Abstract
A method for operating a hybrid drive train involves operating an internal combustion engine using a low-NOx operating method in a range of low and average rotational speeds and/or loads, and operating the internal combustion engine using a spark ignition operating method in a range of higher rotational speeds and/or loads.