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:
Aug. 26, 2014
Filed:
Mar. 14, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Ravikanth G V, Karnataka, IN;
Kumpatla V Naidu, Karnataka, IN;
Awadesh Tiwari, Bangalore, IN;
Aurobbindo Lingegowda, Karnataka, IN;
Viswa Madan Pulavarthi, Karnataka, IN;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle includes an engine, fraction motor, final drive assembly, battery pack, and a supercapacitor module electrically connected to the battery pack. The vehicle also has first and second clutches and a controller. The clutches have opposite apply states. The first clutch connects an engine driveshaft to the motor to establish a neutral-charging mode. The second clutch connects an output shaft of the motor to the final drive assembly to establish a drive mode. The controller selects between the drive and neutral-charging modes in response to input signals. The drive mode uses energy from the supercapacitor module and battery pack to power the traction motor. The neutral-charging mode uses output torque from the engine to charge the supercapacitor module and battery pack. The clutches may be pneumatically-actuated, and the vehicle may be characterized by an absence of planetary gear sets.