Invention Grant
US08121764B2 Shift control device for automatic transmission and control method thereof 失效
自动变速箱换档控制装置及其控制方法

  • Patent Title: Shift control device for automatic transmission and control method thereof
  • Patent Title (中): 自动变速箱换档控制装置及其控制方法
  • Application No.: US12391545
    Application Date: 2009-02-24
  • Publication No.: US08121764B2
    Publication Date: 2012-02-21
  • Inventor: Naohiro Yamada
  • Applicant: Naohiro Yamada
  • Applicant Address: JP Fuji-shi
  • Assignee: Jatco Ltd.
  • Current Assignee: Jatco Ltd.
  • Current Assignee Address: JP Fuji-shi
  • Agency: Foley & Lardner LLP
  • Priority: JP2008-058013 20080307
  • Main IPC: G06F17/00
  • IPC: G06F17/00
Shift control device for automatic transmission and control method thereof
Abstract:
In a shift control device for an automatic transmission according to this invention, when the engine load increases such that a kickdown is required, and a gear position calculated in accordance with the shift map from an operating condition defined by a look-ahead vehicle speed at a predetermined future time is lower than a current gear position and the look-ahead vehicle speed is higher than a predetermined vehicle speed, control is performed to shift to a higher gear position than the target gear position.
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