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. 20, 2016
Filed:
Oct. 05, 2015
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, transmission, auxiliary and high-voltage electrical loads, a drivetrain, and an electrical system. The electrical system, characterized by an absence of a DC-DC converter, includes a full-bridge active rectifier/inverter, a semi-active auxiliary rectifier, an MGU connected to the engine via the drivetrain, and a controller. The controller executes a first operating mode in which the bridge rectifier is disabled and the MGU operates as a motor to restart or assist the engine, and a second operating mode in which the MGU is a generator, with the rectifier/inverter powering the HV-ESS and HV electrical load. The auxiliary rectifier provides an auxiliary DC output voltage to the LV-ESS and auxiliary electrical load. Switches may be positioned between a DC bus connection point and the HV-ESS and LV-ESS, with a switch closed and another opened in the first operating mode, and vice versa in the second operating mode.