Patent · US Expired

Auxiliary section actuator control system and method

US5222404A · kind A · utility

55Cited by
14References
49Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 23, 1992
Grant dateJun 29, 1993
Priority date
Expiry dateJan 23, 2012

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20018
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An auxiliary transmission section (14) shift control system (300)/method is provided which includes control members (246, 328) to prevent auxiliary section synchronized clutch (92, 128) damage if the main transmission section (12) is engaged during an auxiliary section shift. Upon sensing main section engagement during a shift into the auxiliary section high-speed ratio, the force used to engage the high speed ratio is reduced from a first (p*a.sub.224) to a considerably lower second (p*(a.sub.224 -a.sub.222)) level.

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