Powertrain control method and system
CA 2589967 C · Owner: Field, Matthew Gibson · Inventors: Field, Matthew Gibson; Burke, Matthew Piers
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method of operating a motor vehicle powertrain comprising an infinitely variable transmission and an engine. The transmission comprises a rotary transmission input coupled to the engine a rotary , transmission output coupled to the vehicle wheels a variator which provides a , continuously variable ratio (the "variator ratio") and gearing for coupling , the variator between the engine and the transmission output in such a manner that the ratio of transmission output speed to transmission input speed (the "reciprocal transmission ratio") is a function of the variator ratio. The available range of variator ratios maps onto both forward and reverse reciprocal …
Read the whole patent
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 January 30, 2006 and granted March 31, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.