Invention Grant
US08185280B2 Method and apparatus for shifting gears in transmissions 有权
用于在变速器中换档的方法和装置

  • Patent Title: Method and apparatus for shifting gears in transmissions
  • Patent Title (中): 用于在变速器中换档的方法和装置
  • Application No.: US12003004
    Application Date: 2007-12-19
  • Publication No.: US08185280B2
    Publication Date: 2012-05-22
  • Inventor: Michael EvansSimon Conway
  • Applicant: Michael EvansSimon Conway
  • Applicant Address: US IL Peoria
  • Assignee: Caterpillar Inc.
  • Current Assignee: Caterpillar Inc.
  • Current Assignee Address: US IL Peoria
  • Priority: EP06256510 20061221
  • Main IPC: G06F17/00
  • IPC: G06F17/00
Method and apparatus for shifting gears in transmissions
Abstract:
A method of changing from a first gear position to a second gear position of a transmission arrangement is disclosed. The arrangement includes a rotatable transmission member, a hydrostatic continuously variable transmission coupled to the transmission member and operable to rotate the transmission member at a first speed, a controller configured to control operation of the hydrostatic continuously variable transmission, and a gear apparatus coupled to the transmission member and configured to be shiftable between at least the first gear position and the second gear position. The method includes controlling the hydrostatic continuously variable transmission, using the controller, to rotate the transmission member at the first speed, and shifting the gear apparatus from the first gear position to the second gear position while the transmission member is rotating at, or converging with, the first speed.
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