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. 22, 2015
Filed:
Mar. 13, 2014
GM Global Technology Operations Llc, Detroit, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Michael G. Reynolds, Troy, MI (US);
Thomas Wolfgang Nehl, Shelby Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle includes an engine, a transmission connected to the engine, an auxiliary electrical load, and an electrical system. The electrical system includes a high-voltage energy storage system (HV-ESS), an auxiliary/low-voltage energy storage system (LV-ESS) connected to the load, a full-bridge active rectifier/inverter, a semi-active auxiliary rectifier, and a motor generator unit (MGU) connected to the HV-ESS via the active rectifier/inverter, and to the LV-ESS via the semi-active auxiliary rectifier. A controller establishes a first operating mode in which the MGU is operated as a motor for restarting or assisting the engine via the active rectifier/inverter, and second operating mode in which the MGU operates as a generator and the semi-active rectifier provides an auxiliary DC output voltage to the LV-ESS and the load. Another vehicle has first and second switches in lieu of the semi-active rectifier, with the active rectifier connected to the HV-ESS and LV-ESS via different switches.