Vehicle speed control system
CA 2308071 C · Owner: Sato, Hiroshi · Inventors: Kotani, Hideaki; Ito, Akira; Sen, Naoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for controlling a speed of a vehicle having a continuously variable transmission (CVT) and a cruise controller which controls the traveling speed of the vehicle, to a desired speed in response to the instruction to cruise control inputted by the vehicle, operator. In the system the detected throttle opening is smoothed or filtered such that the, speed ratio of the continuously variable transmission is controlled based on the smoothed, throttle opening and the detected vehicle speed when the instruction to cruise control is input. Alternatively, a parameter indicative of upslope of the road where the vehicle climbs is, determined and the speed ratio is controlled based on 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 May 11, 2000 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2022.
- 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.