发明申请
- 专利标题： HYDRAULIC CONTROL APPARATUS AND HYDRAULIC CONTROL METHOD FOR AUTOMATIC TRANSMISSION
- 专利标题（中）： 液压控制装置及自动变速器液压控制方法
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申请号： US12530511申请日： 2008-03-13
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公开(公告)号： US20100105521A1公开(公告)日： 2010-04-29
- 发明人: Tomohiro Kondo , Masami Kondo , Toshimitsu Sato
- 申请人： Tomohiro Kondo , Masami Kondo , Toshimitsu Sato
- 申请人地址： JP Toyota-shi
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JP Toyota-shi
- 优先权： JP2007-065200 20070314
- 国际申请： PCT/IB08/01411 WO 20080313
- 主分类号： B60W10/10
- IPC分类号： B60W10/10
摘要：
A hydraulic control apparatus of an automatic transmission estimates the possibility of there being a demand for a shift into a gear lower than the current gear during a power-off downshift operation. If there is a possibility that there will be a demand for a shift into the next gear during the shift, the hydraulic control apparatus starts an operation for supplying an apply preparation hydraulic pressure in preparation for the shift into that next gear.
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