发明申请
US20100250074A1 CONTROL APPARATUS AND METHOD FOR AUTOMATIC TRANSMISSION 有权
自动变速器的控制装置和方法

  • 专利标题: CONTROL APPARATUS AND METHOD FOR AUTOMATIC TRANSMISSION
  • 专利标题(中): 自动变速器的控制装置和方法
  • 申请号: US12649894
    申请日: 2009-12-30
  • 公开(公告)号: US20100250074A1
    公开(公告)日: 2010-09-30
  • 发明人: Kazuki HIRASAKOMasami SUZUKI
  • 申请人: Kazuki HIRASAKOMasami SUZUKI
  • 专利权人: JATCO Ltd
  • 当前专利权人: JATCO Ltd
  • 优先权: JP2009-074081 20090325
  • 主分类号: G06F19/00
  • IPC分类号: G06F19/00
CONTROL APPARATUS AND METHOD FOR AUTOMATIC TRANSMISSION
摘要:
A control apparatus includes a shift-pressure learning correction controlling section configured to perform a shift-pressure learning correction in which a physical quantity representing a progress of shift is measured at a time of current downshift, and in which an engagement command pressure for a friction element is corrected at a time of next downshift on the basis of a divergence between the measured physical quantity and a target physical quantity; a shift-torque increase controlling section configured to perform a torque increase control in which a command for temporarily increasing torque of a drive source starts to be outputted when a start estimation timing of torque phase has just come during a transition period given between start and end of the downshift; and a learning convergence judging section configured to judges whether the shift-pressure learning correction has converged, configured to prohibit the torque increase control until it is decided that the shift-pressure learning correction has converged, and configured to permit the torque increase control when it is decided that the shift-pressure learning correction has converged.
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