发明申请
- 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
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申请号: US12649894申请日: 2009-12-30
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公开(公告)号: US20100250074A1公开(公告)日: 2010-09-30
- 发明人: Kazuki HIRASAKO , Masami SUZUKI
- 申请人: Kazuki HIRASAKO , Masami 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
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.
公开/授权文献
- US08290668B2 Control apparatus and method for automatic transmission 公开/授权日:2012-10-16
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