Invention Grant
- Patent Title: Method of controlling a hydraulic continuously variable transmission
- Patent Title (中): 控制液压无级变速器的方法
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Application No.: US13430254Application Date: 2012-03-26
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Publication No.: US08798882B2Publication Date: 2014-08-05
- Inventor: David Monfette , Jean-Philippe Desbiens , Roger Rioux
- Applicant: David Monfette , Jean-Philippe Desbiens , Roger Rioux
- Applicant Address: unknown Sherbrooke, Quebec
- Assignee: Consortium de Recherche BRP—Universite de Sherbrooke S.E.N.C.
- Current Assignee: Consortium de Recherche BRP—Universite de Sherbrooke S.E.N.C.
- Current Assignee Address: unknown Sherbrooke, Quebec
- Agency: BCF LLP
- Main IPC: G06F7/00
- IPC: G06F7/00

Abstract:
A method of controlling a hydraulic CVT of a vehicle comprises: determining a speed of rotation of a driving shaft; determining a speed of rotation of a driven shaft; determining a ratio of the speed of rotation of the driving shaft versus the speed of rotation of the driven shaft; determining an engine torque; determining a base clamping force to be applied by the driving pulley onto the belt based on the ratio and the engine torque; determining a desired speed of rotation of the driving shaft; determining a corrective clamping force by comparing the speed of rotation of the driving shaft to the desired speed of rotation of the driving shaft; and controlling a hydraulic pressure applied to a movable sheave to apply a sum of the base and corrective clamping forces onto the belt. A vehicle having a CVT controlled by the method is also disclosed.
Public/Granted literature
- US20130080007A1 Method of Controlling a Hydraulic Continuously Variable Transmission Public/Granted day:2013-03-28
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