Patent · US Expired

Start gear ratio control system and method utilizing the highest allowable start gear ratio

US5761628A · kind A · utility

22Cited by
15References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 27, 1994
Grant dateJun 2, 1998
Priority date
Expiry dateOct 27, 2014

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/1926
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A control system and method for controlling start-from-stop operation in an automated mechanical transmission system, including a multiple-speed change-gear transmission (10) having a lowest grouping of ratios (first-fourth) suitable for start-from-stop operation, is provided. Upon a request or requirement for a shift into a default start ratio, the system controller (106) will cause initiation of a shift into the highest gear ratio (fourth) of the lowest group of ratios.

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