Method and system for shift control of an automatic transmission for vehicle
CA 1266191 C · Owner: Fukumura, Kagenori · Inventors: Yasue, Hideki; Fukumura, Kagenori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shift control of an automatic transmission for a vehicle which includes a first transmission section capable of automatically shifting gears in association with at least vehicle speed and engine load and a second transmission section capable of shifting between the lower gear side and the higher gear side, wherein the first transmission section and the second transmission section are simultaneously or alternately shifted to thereby achieve multi-gear shifts, such that when shifting is to be achieved by shifting the first transmission section and the second transmission section in directions opposite to each other, shifting into the gear is prohibited.
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
- Granted February 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 2007.
- 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.