Method for monitoring a drive belt of a continuously variable transmission and method for preventing damage to the drive belt

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United States of America Patent

PATENT NO 11136019
APP PUB NO 20200247383A1
SERIAL NO

16777920

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Importance

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Abstract

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Monitoring is provided for a drive belt of a continuously variable transmission (CVT) mounted in a vehicle having a motor driving the CVT. A rotational speed of the motor and a power level of the motor are sensed. An abuse indicator for the drive belt is set when, concurrently, the rotational speed of the motor increases at a rate that exceeds a change threshold and the power level of the motor exceeds a power threshold. A level of abuse of the drive belt is calculated based on a speed of the vehicle and on a drive belt temperature. Damage to the drive belt may be prevented by limiting a power output of the motor when an accumulated level of abuse exceeds an abuse threshold. A vehicle having an electronic control unit configured to perform the method is also disclosed.

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Patent Owner(s)

Patent OwnerAddress
BOMBARDIER RECREATIONAL PRODUCTS INC726 ST JOSEPH STREET VALCOURT J0E 2L0

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aitcin, Xavier-Pierre St-Hyacinthe, CA 20 149
Bernier, Michel Sherbrooke, CA 40 236
Giguere, Marc Magog, CA 2 3
Schuehmacher, Bruno Richmond, CA 27 138

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