Electronic speed control system for vehicles, a method of determining the condition of a manual transmission clutch and of a park/neutral gear in an automatic transmission
CA 1307041 C · Owner: Chrysler Motors Corporation · Inventors: Vincent, James L.; Frantz, Douglas C.; Kissel, William R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method to disengage an electronic speed control as a function of the condition of the park/neutral gear or manual clutch. If the automatic transmission lever is bumped from "drive" or the manual transmission clutch is depressed while the electronic speed control is operating the method will sense this by detecting a difference in the ratio of engine speed to vehicle speed. If the ratio changes by +/- 25 percent, the electronic speed control is disengaged.
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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
- Granted September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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
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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.