Method of controlling clamping of wedge-actuated CVT and powertrain with wedge-actuated CVT

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United States of America Patent

PATENT NO 10473213
APP PUB NO 20190170249A1
SERIAL NO

15829294

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Abstract

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A method of controlling a continuously variable transmission includes monitoring powertrain operating conditions, and calculating, via an electronic controller, a commanded clamping force based on the powertrain operating conditions, wherein the commanded clamping force includes a commanded clamping force of an input pulley and a commanded clamping force of an output pulley on the endless rotatable device. The method also includes activating, via the electronic controller, at least one of the input actuator and the output actuator such that an axial component of the input wedge force and the axial force of the input actuator together provide the commanded clamping force of the input pulley, and an axial component of the output wedge force and the axial force of the output actuator together provide the commanded clamping force of the output pulley.

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Patent Owner(s)

Patent OwnerAddress
GM GLOBAL TECHNOLOGY OPERATIONS LLCP O BOX 300 MAIL CODE 482-C23-B21 DETROIT MI 48265-3000

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duan, Chengwu Shanghai, CN 83 150
Huang, Ying Shanghai, CN 451 6739
Lee, Chunhao J Troy, US 229 2496
Yao, Jian Shanghai, CN 258 1002

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