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. 26, 2009
Filed:
Mar. 05, 2007
Joel M. Maguire, Northville, MI (US);
Madhusudan Raghavan, West Bloomfield, MI (US);
Robert P. Roesser, Southfield, MI (US);
Joel M. Maguire, Northville, MI (US);
Madhusudan Raghavan, West Bloomfield, MI (US);
Robert P. Roesser, Southfield, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A method is provided for controlling a hybrid vehicle powertrain, including recording a starting and ending point of a desired route, determining an optimally fuel efficient route, and executing a powertrain control strategy based on the route. Real-time traffic data and topographical data are continuously evaluated, and the route and powertrain control strategy are updated based on the data. A hybrid vehicle is also provided having an engine, a motor/generator, a battery, and a navigation system for receiving a route starting point and ending point. A powertrain control module (PCM) detects the battery charge and determines a powertrain strategy along an optimally fuel efficient route based on the detected charge level when the points are selected, and sustains the charge level in the absence of user-selected route points. Sensors receive real-time traffic data, and the navigation system includes topographical data for determining the optimally fuel efficient route.