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:
Jan. 29, 2013
Filed:
Jul. 29, 2010
James L. Worthing, South Lyon, MI (US);
John N. Stockbridge, Novi, MI (US);
Thomas Richard Durkin, Oxford, MI (US);
Joseph E. Ploucha, Commerce Township, MI (US);
Richard B. Jess, Haslett, MI (US);
Brian D. Essenmacher, Rochester Hills, MI (US);
James L. Worthing, South Lyon, MI (US);
John N. Stockbridge, Novi, MI (US);
Thomas Richard Durkin, Oxford, MI (US);
Joseph E. Ploucha, Commerce Township, MI (US);
Richard B. Jess, Haslett, MI (US);
Brian D. Essenmacher, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hybrid powertrain and a method of controlling a throttle in an engine of the hybrid powertrain are provided. A throttle system has a throttle at an optimal position for the engine to power a first motor/generator when an electric throttle motor is de-energized to minimize current consumption by the throttle motor. The electric throttle motor is energizable to adjust the position of the throttle. A biasing member biases the throttle to a default position when the electric throttle motor is not energized. The hybrid powertrain has a first motor/generator operatively connected to the engine, and a second motor/generator operatively connected to the generator and operable for providing output power. The engine is operable in a predetermined optimal state to provide power to the generator for powering the first motor/generator. The throttle is at a predetermined position when the engine is in the predetermined optimal state.