Clamp force control method for continuous variable transmission
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorHoyoung Lee
Life of this patent
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Abstract
A clamp force control method for a continuous variable transmission may include a first process that fixes clamp force of any one of a driving pulley and a driven pulley, and a second process that finds a section where a transmission ratio may be the minimum while gradually decreasing the clamp force from a current clamp force of the other pulley of which the clamp force may not be fixed in the first process and sets the clamp force in the section where the transmission ratio may be the minimum as the clamp force of the other pulley, which may not be fixed.
Claims3
A clamp force control method for a continuous variable transmission, comprising:
- fixing a first clamp force of any one of a driving pulley and a driven pulley;
- finding a section B where a minimum of a transmission ratio occurs by decreasing a second clamp force of the other one of the driving pulley and the driven pulley;
- and
- setting a smallest clamp force in the section B where the transmission ratio is the minimum as the second clamp force of the other one of the driving pulley and the driven pulley.
Dependencies are inferred from the claim text.