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.: US13496387Application Date: 2009-09-15
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Publication No.: US08645035B2Publication Date: 2014-02-04
- Inventor: Roger Rioux , David Monfette , Jean-Philippe Desbiens
- Applicant: Roger Rioux , David Monfette , Jean-Philippe Desbiens
- Applicant Address: CA Sherbrooke
- 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: CA Sherbrooke
- Agency: BCF LLP
- International Application: PCT/CA2009/001301 WO 20090915
- International Announcement: WO2011/032252 WO 20110324
- Main IPC: G06F7/00
- IPC: G06F7/00

Abstract:
A method of controlling a hydraulic CVT of a vehicle includes: 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
- US20120179344A1 Method of Controlling a Hydraulic Continuously Variable Transmission Public/Granted day:2012-07-12
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