Transmission shift control with engine torque control
CA 2433370 A1 · Owner: Janasek, Clayton George · Inventors: Rice, Timothy Douglas; Dobbins, Jared Scott; Plassman, Barry Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission controller determines a requested engine torque value. For an upshift the requested engine torque value is determined as a function of slippage of, one of an off-going clutch. For a downshift the requested engine torque value , is determined as a function of actual sensed engine torque. The requested torque value is sent to an engine controller which controls the engine so that the engine, generates the requested engine torque. Then the appropriate transmission clutches, are swapped to complete the requested shift while the engine torque is controlled. The engine controller also limits engine torque to the requested engine torque value.
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 June 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2025.
- 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.