发明名称 Control device and control method for automatic transmission
摘要 When it is determined to perform nth to (n+1)th coast downshift during nth to (n+1)th power-off upshift, an ECU starts increasing control to increase the hydraulic pressure of an engage-side element A in a predetermined mode and maintains the hydraulic pressure of a release-side element B at a value at which the increasing control is started until a predetermined period of time elapses from when the start of the increasing control. When a turbine rotational speed does not increase even after the predetermined period of time has elapsed, as the turbine rotational speed decreases below a value lower by a predetermined value than a synchronous rotational speed in the (n+1)th gear, the ECU executes feedback control over the hydraulic pressure of the element B so that the turbine rotational speed becomes the value lower by the predetermined value than the synchronous rotational speed in the (n+1)th gear.
申请公布号 US8414457(B2) 申请公布日期 2013.04.09
申请号 US20100764452 申请日期 2010.04.21
申请人 OSHIMA KOJI;TOYOTA JIDOSHA KABUSHIKI KAISHA 发明人 OSHIMA KOJI
分类号 F16H61/00;F16H59/42;F16H61/04;F16H61/68;F16H61/684;F16H61/686 主分类号 F16H61/00
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