Belt for continuously variable transmission and manufacturing method of the same
AssigneesAisin A W Co., Ltd., Cvtec Co., Ltd.
InventorsMasashi Hattori, Katsumori Fujii, Ryo Nakamura, Hideki Makino, Yohei Ito
Life of this patent
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Abstract
A belt for a continuously variable transmission (CVT) including an endless body and a plurality of V blocks attached to the endless body. The V blocks include a plurality of types of blocks having different thicknesses and are divided into a plurality of V block groups. The V block groups have different ratios of the plurality of types of V blocks, to provide a belt whose noise level is low and dispersed.
Claims11
A belt for a continuously variable transmission (CVT), said belt comprising:
- an endless body;
- a plurality of V blocks attached to the endless body, wherein,
- said V blocks include a plurality of types of blocks having different thicknesses;
- and
- said V blocks are divided into a plurality of V block groups, said V block groups respectively having a different ratio of said plurality of types of V blocks.
A belt for a continuously variable transmission (CVT), said belt comprising:
- an endless body;
- a plurality of V blocks attached to said endless body, wherein said V blocks include a plurality of types of V blocks having different thickness;
- said V blocks being divided into a plurality of V block groups respectively having a different ratio of said different types of V blocks;
- and
- said V block groups are formed from a series of said V blocks.
A method for manufacturing a belt for a continuously variable transmission (CVT) in which multiple V blocks of a plurality of types having different thicknesses are attached to an endless body, comprising:
- forming a plurality of V block groups respectively having a different ratio of different types of V blocks;
- and
- forming a series of V blocks by attaching a plurality of V blocks to the endless belt to provide said plurality of V block groups.
A method for manufacturing a belt for a continuously variable transmission (CVT), comprising:
- dividing V blocks into a plurality of V block groups which respectively have a different ratio of different types of V blocks;
- specifying a plurality of arrangements of said V blocks for said V block groups so as to assemble a series of individual belts on a computer;
- simulating a state in which said plurality of assembled belts is wound across pulleys to calculate a noise level of the individual belts on the computer;
- and
- analyzing the calculated noise level of each belt to determine an optimum belt.
Dependencies are inferred from the claim text.