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    • 35. 发明专利
    • Vehicle control device
    • 车辆控制装置
    • JP2012087828A
    • 2012-05-10
    • JP2010232769
    • 2010-10-15
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOKOGAWA TAKAHIRO
    • F16H61/02F16H9/26F16H61/14F16H61/662
    • PROBLEM TO BE SOLVED: To provide a vehicle control device capable of alleviating a load to a clutch mechanism upon idling stop and start control.SOLUTION: An ECU 14 of a vehicle includes: an engine; a belt type continuously variable transmission having a primary pulley in which engine power is input, a secondary pulley from which engine power is output toward a driving wheel and a belt; a machine oil pump 24 capable of supplying oil to the belt type continuously variable transmission by engine power; supply side and discharge side oil pressure control valves 81a and 81b capable of controlling oil pressure in a primary oil pressure chamber 58; and an accumulator 73 capable of supplying oil toward a secondary oil pressure chamber 63; wherein the accumulator 73 is operated and the supply side and discharge side oil pressure control valves 81a and 81b are closed when performing idling stop and start control starting the engine upon start of the vehicle while stopping the engine upon stopping of the vehicle.
    • 要解决的问题:提供一种能够在怠速停止和起动控制时减轻对离合器机构的负荷的车辆控制装置。 解决方案:车辆的ECU14包括:发动机; 带式无级变速器,其具有其中输入发动机功率的初级带轮,从驱动轮向其输出发动机功率的次级带轮和带; 机油泵24,其能够通过发动机功率向带式无级变速器供油; 能够控制一次油压室58中的油压的供给侧排出侧油压控制阀81a,81b; 以及能够向第二油压室63供给油的蓄能器73; 在停车时停止发动机的同时,在车辆起动时进行怠速停止和起动控制时,供给侧排出侧油压控制阀81a,81b关闭。 版权所有(C)2012,JPO&INPIT
    • 38. 发明专利
    • Mode switching control device of separating type continuously variable transmission
    • 分离类型连续可变传输的模式切换控制装置
    • JP2007285475A
    • 2007-11-01
    • JP2006115804
    • 2006-04-19
    • Nissan Motor Co Ltd日産自動車株式会社
    • KOYAMA TAKAO
    • F16H37/02F16H9/00F16H9/26
    • PROBLEM TO BE SOLVED: To provide a mode switching control device capable of reducing a mode switching shock of a separating type continuously variable transmission.
      SOLUTION: For starting switching to a high mode from a low mode from t1 when the pulley ratio of a variator becomes less than the Low → High mode switching starting determining pulley ratio Ip1 (the high side more than the Ip1), a low speed clutch Low/C is turned to a release by reduction in its fastening oil pressure, and a high speed and retreat clutch High & Rev/C is turned to fastening by an increase in its fastening oil pressure. The Low/C is released by further reduction in the fastening oil pressure in a mode switching time ΔTm up to t2 when the variator pulley ratio becomes the Low → High mode switching finish determining pulley ratio Ip2 ore more (the low side more than the Ip2) from the t1, and the High & Rev/C is fastened by a further increase in the fastening oil pressure, and a mode is switched by the replacement of these clutches. In the ΔTm, the variator gear ratio is further changed in time series in a parabolic shape to the time base (the axis of abscissa), and a variator is kept in the synchronous gear ratio (the highest gear ratio) in ΔTcvt.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够减少分离式无级变速器的模式切换冲击的模式切换控制装置。

      解决方案:当变速器的皮带轮比变得小于低→高模式切换起动判定滑轮比Ip1(高于Ip1的高侧)时,从t1开始从低模式开始切换到高模式, 低速离合器低/ C通过降低其紧固油压而转向释放,高速和后退离合器High&Rev / C通过增加其紧固油压而转向紧固。 当变速器皮带轮比变为低→高模式切换确定皮带轮比Ip2时,模式切换时间ΔTm中的紧固油压进一步降低,低/低释放(低于Ip2 ),并且通过进一步增加紧固油压来固定High&Rev / C,并且通过更换这些离合器来切换模式。 在ΔTm中,变速器齿轮比进一步以抛物线形状时间序列变化为时基(横坐标轴),并且变速器保持在ΔTcvt中的同步变速比(最高变速比)。 版权所有(C)2008,JPO&INPIT