System for controlling torque transmission in a four wheel drive vehicle
CA 1322239 C · Owner: Borg-Warner Automotive, Inc. · Inventors: Coogan, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system (100) for a full time four wheel drive vehicle (10) having a transfer case (24) including a planetary gear differential (38) and an electromagnetically actuated clutch assembly (46) for biasing torque betwe n the front and rear drive wheels (12,14) in response to signals from the control system. The control system (100) includes apparatus for detecting wheel lip (116) and a device (118), responsive to the detection of wheel slip for calculating a maximum torque level to be established by the clutch assembly (46) as a function of the total torque delivered to the transfer case and for programming clutch torque application over a predetermined time period and in a manner …
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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 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
- 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.