Methods of operating a series hybrid vehicle
CA 2538775 C · Owner: Government Of The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency · Inventors: Gray, Charles L. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed toward methods for operating a series hybrid vehicle in a manner that responds to the operator's demand for power output while , maximizing engine efficiency and minimizing disruptions in vehicle drivability. According to the present invention when the driver of a series , hybrid vehicle makes a demand for power output whether the secondary power , source(s) (12) is supplied with secondary energy stored in an energy storage device(s) (14), direct input energy generated by an engine(s) (16) or both, depends on the amount of available secondary energy stored in the vehicle's secondary storage device(s) alone, and in combination with vehicle speed. During the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 3, 2004 and granted August 27, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.