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    • 31. 发明授权
    • Vehicle control apparatus
    • 车辆控制装置
    • US08335621B2
    • 2012-12-18
    • US12624700
    • 2009-11-24
    • Atsushi AyabeTomohiro Asami
    • Atsushi AyabeTomohiro Asami
    • G06F7/00
    • F02D41/023F02D31/007F02D41/126F02D2400/12
    • When downshift control is performed during fuel cut control (when coast-down gearshift control is performed), fuel cut reset revolutions are lowered and set to revolutions Ndwn that are lower than fuel cut reset revolutions Nnor for normal control. By such a setting, it becomes possible to maintain fuel cut control and deceleration lockup slippage control even when engine revolutions NE temporarily drop during execution of coast-down gearshift control, so an improvement in fuel consumption can be achieved. Moreover, it becomes unnecessary to set a downshift gearshift line to a higher vehicle speed side, so fuel cut can be maintained while suppressing the occurrence of a gearshift shock.
    • 当在燃料切断控制期间进行降档控制(当执行滑行换档控制时),燃料切断复位转数降低,并设定为低于用于正常控制的燃料切断复位转数Nnor的转数。 通过这样的设定,即使在执行滑行换档控制时发动机转数NE暂时下降,也能够保持燃料切断控制和减速锁定滑动控制,从而可以实现燃料消耗的提高。 此外,不需要将换低档换档线设置到较高车速侧,因此能够在抑制换档冲击的发生的同时保持燃料切断。
    • 33. 发明授权
    • Shift control apparatus for automatic transmission
    • 用于自动变速器的换档控制装置
    • US07374512B2
    • 2008-05-20
    • US11268588
    • 2005-11-08
    • Atsushi AyabeToshio Sugimura
    • Atsushi AyabeToshio Sugimura
    • F16H59/20
    • F16H61/061F16H61/686F16H2061/0448F16H2306/14Y10T477/641Y10T477/693637Y10T477/693643Y10T477/693675
    • When it is decided that it is impossible to shift the automatic transmission directly to the target speed position according to the second shifting-action decision made during a shifting control to shift the automatic transmission to a target speed according to a first shifting-action decision, one of a plurality of candidate intermediate speed positions to which the automatic transmission can be shifted directly is determined as an intermediate speed position. The determined intermediate speed position is established with the largest amount of change of an engine speed NE, and accordingly with the longest time required for completion of the change of the engine speed NE during which a hydraulic pressure of a clutch to be engaged to establish the intermediate speed position can be raised, whereby the clutch engaging pressure can be changed at a rate low enough to reduce a shifting shock of the automatic transmission.
    • 当根据第一换档动作判定,根据在变速控制期间进行的第二换档动作判断,将自动变速器直接变换到目标转速时, 自动变速器能够直接移动的多个候选中间速度位置中的一个被确定为中间速度位置。 确定的中间速度位置以发动机转速NE的最大变化量建立,并且因此在完成发动机转速NE的变化所需的最长时间期间,待啮合的离合器的液压建立 可以提高中速位置,从而可以以足够低的速率改变离合器接合压力,以减少自动变速器的换档冲击。