Patent · US Expired

Hydraulic control apparatus for a continuously variable transmission

US4631043A · kind A · utility

23Cited by
2References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 1984
Grant dateDec 23, 1986
Priority date
Expiry dateMay 3, 2004

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H61/66259
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A hydraulic control apparatus for controlling a line pressure utilized in a continuously variable transmission. The apparatus controls the amount of line pressure supplied to be as small as possible without resulting in any slippage between a belt member which spans the pulleys. The apparatus monitors torque on the input shaft and output shaft to determine if any slippage is occurring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.