Hydraulic pressure control apparatus for an automatic transmission
    5.
    发明授权
    Hydraulic pressure control apparatus for an automatic transmission 失效
    用于自动变速器的液压控制装置

    公开(公告)号:US5782711A

    公开(公告)日:1998-07-21

    申请号:US768462

    申请日:1996-12-18

    摘要: A hydraulic pressure control apparatus for an automatic transmission including a microprocessor-based control unit for controlling hydraulic pressure supplied to hydraulic servos of friction engagement elements. The control apparatus calculates a target hydraulic pressure P.sub.TA for a condition at the start of the inertia phase in accordance with the input torque, and a gradient based on the target hydraulic pressure and a predetermined time t.sub.TA. A first up-sweep of hydraulic pressure is performed by the apparatus with the gradient. A relatively gradual gradient .delta.P.sub.TA is set based on a target rotation change rate for the input rotational speed to provide a predetermined change amount when the hydraulic pressure becomes the target hydraulic pressure P.sub.TA. The control apparatus performs a second up-sweep with the gradient .delta.P.sub.TA. When the rotational speed change .DELTA.N of the input rotation becomes a rotation change start-determining rotational speed dN.sub.S, the control apparatus feedback-controls the hydraulic pressure with a predetermined gradient while referring to the input rotation change. Further, the control apparatus detects the target shift start time and the rotational speed change rate at the target shift start time to correct the target hydraulic pressure P.sub.TA, the gradient .delta.P.sub.TA of the second sweep section, and the target shift start time t.sub.aim.

    摘要翻译: 一种用于自动变速器的液压控制装置,包括基于微处理器的控制单元,用于控制供应到摩擦接合元件的液压伺服的液压。 控制装置根据输入转矩和基于目标液压和规定时间tTA的梯度,计算出惯性阶段开始时的条件的目标液压PTA。 液压的第一次上升是由具有梯度的装置进行的。 基于用于输入转速的目标旋转变化率来设定相对逐渐的梯度ΔPTA,以在液压成为目标液压PTA时提供预定的变化量。 控制装置用梯度ΔPTA执行第二次上扫。 当输入旋转的转速变化DELTA N变为旋转变化开始判定转速dNS时,控制装置参照输入的转动变化以预定的斜率反馈控制液压。 此外,控制装置检测目标换档开始时刻的目标换档开始时间和转速变化率,以校正目标液压PTA,第二扫描部分的斜率ΔPTA和目标换档开始时间taim。

    Hydraulic control system for automatic transmission
    6.
    发明授权
    Hydraulic control system for automatic transmission 失效
    自动变速箱液压控制系统

    公开(公告)号:US06259983B1

    公开(公告)日:2001-07-10

    申请号:US09119237

    申请日:1998-07-21

    IPC分类号: F16H900

    摘要: A learning controller makes learning correction based on a time tST between start of a shift control routine and detection of start of a change in rotational speed of the transmission input shaft and further based on the amount of rotational speed change &ohgr;S′ at the detected start of the rotational speed change. When the time tST is longer than a basic time and when the rotational change amount &ohgr;S′ is too large, it is determined that a servo piston has not been sufficiently advanced and the shift control is corrected so that the time tST is lengthened. When the time tST to the detected start of the rotational speed change &ohgr;S′ is too small, it is determined that, while the piston has been advanced properly, the target engagement pressure PTA in torque phase control is too low because of a miscalculation, and the shift control is corrected so that the target engagement pressure is raised.

    摘要翻译: 学习控制器基于变速控制程序开始之间的时间tST和变速器输入轴的转速开始的检测开始之间的时间tST进一步进行学习校正,并且还基于检测到的开始时的转速变化量ω 转速变化。 当时间tST长于基本时间,并且当旋转变化量ωs'太大时,确定伺服活塞未被充分提前,并且校正换档控制,使得时间tST延长。 当检测到的转速ω'S'的开始的时间tST太小时,确定在活塞已经正确前进的情况下,由于计算错误,转矩相位控制中的目标接合压力PTA太低,并且 校正换档控制,使得目标接合压力升高。

    Fluid pressure control device for lock-up mechanism
    8.
    发明授权
    Fluid pressure control device for lock-up mechanism 失效
    用于锁定机构的流体压力控制装置

    公开(公告)号:US07011603B2

    公开(公告)日:2006-03-14

    申请号:US10737913

    申请日:2003-12-18

    IPC分类号: F16H61/14

    摘要: A fluid pressure control device including a torque converter that is placed between a output shaft of an engine and an input shaft of a transmission, a mechanical oil pump that is driven by the output shaft, a clutch that directly engages the output shaft and the input shaft by employing an engagement pressure based on a fluid pressure that is generated by the mechanical oil pump, an electric oil pump that can supply a fluid pressure to the clutch, and a control unit for controlling the electric oil pump, wherein when the engagement pressure based on the fluid pressure that is generated by the mechanical oil pump is an amount below a necessary engagement pressure that is necessary to engage the clutch, the control unit drives the electric oil pump so as to supply a fluid pressure by at least the amount to the clutch.

    摘要翻译: 一种液压控制装置,包括放置在发动机的输出轴和变速器的输入轴之间的变矩器,由输出轴驱动的机械油泵,直接接合输出轴的离合器和输入 通过采用基于由机械油泵产生的流体压力的接合压力,能够向离合器供给流体压力的电动油泵和用于控制电动油泵的控制单元,其中当接合压力 基于由机械油泵产生的流体压力是低于与离合器接合所需的必要接合压力的量,控制单元驱动电动油泵,以将流体压力至少提供至 离合器。

    Production device for high-quality silicon single crystals
    9.
    发明授权
    Production device for high-quality silicon single crystals 有权
    高品质硅单晶生产设备

    公开(公告)号:US06702892B2

    公开(公告)日:2004-03-09

    申请号:US09926285

    申请日:2001-11-20

    IPC分类号: C30B1514

    摘要: An apparatus is provided which is to be used in producing single crystals for silicon wafers useful as semiconductor materials and which can stably produce large-diameter, long-length and high-quality single crystals from which wafers limited in the number of grown-in defects can be taken. This silicon single crystal production apparatus comprises a cooling member surrounding the single crystal to be pulled up and having an internal surface coaxial with the pulling axis and thermal insulating members disposed outside the outer surface and below the bottom surface of the cooling member, the cooling member having an internal surface diameter of 1.20D to 2.50D (D being the diameter of the single crystal to be pulled up) and a length of not less than 0.25D, the distance from the melt surface to the bottom surface of the cooling member being 0.30D to 0.85D and the bottom side of the thermal insulating member below the cooling member having an inside diameter smaller than the inside diameter of the bottom of the cooling member.

    摘要翻译: 提供了一种用于制造用作半导体材料的硅晶片的单晶的装置,其可以稳定地生产大直径,长长和高质量的单晶,其中限制了多个生长缺陷的晶片 可以服用 这种硅单晶制造装置包括围绕单晶的被拉起并具有与牵引轴同轴的内表面的冷却构件和设置在冷却构件的外表面的外表面的外表面的下方的隔热构件, 内表面直径为1.20D至2.50D(D为待拉起的单晶的直径),长度不小于0.25D,从冷却件的熔体表面到底表面的距离为 0.30D至0.85D,并且所述隔热构件的底部在所述冷却构件下方的内径小于所述冷却构件的底部的内径。