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63 条记录 (耗时 0.037 秒)

    Wheel information estimating apparatus
    31.
    发明授权
    Wheel information estimating apparatus 失效
    车轮信息估计装置

    公开(公告)号：US6142026A

    公开(公告)日：2000-11-07

    申请号：US458099

    申请日：1995-06-01

    申请人： Hideki Ohashi ,  Hiroyuki Kawai ,  Hiroyoshi Kojima ,  Takaji Umeno ,  Katsuhiro Asano ,  Toshiharu Naito ,  Nobuyoshi Onogi

    发明人： Hideki Ohashi ,  Hiroyuki Kawai ,  Hiroyoshi Kojima ,  Takaji Umeno ,  Katsuhiro Asano ,  Toshiharu Naito ,  Nobuyoshi Onogi

    IPC分类号： B60C23/06 ,  G01M15/00 ,  B60C23/00 ,  G01L17/00

    CPC分类号： B60C23/062 ,  B60C23/061

    摘要： A wheel information estimating apparatus, which includes: a detecting device for detecting a wheel motion state relating to a movement of a tired wheel of a motor vehicle; an estimating device for estimating wheel information relating to the tired wheel, on the basis of the wheel motion state detected by the detecting device; and a modifying device for modifying an element relating to estimation of the wheel information, so as to improve an accuracy of estimating the wheel information. The element to be modified is selected from a movement of a center of rotation of the tired wheel as viewed in a plane in which the wheel is rotated, a signal applied from the detecting device to the estimating device, and an internal parameter used by the estimating means for estimating the wheel information.

    摘要翻译： 一种车轮信息估计装置，包括：检测装置，用于检测与机动车辆的轮胎的运动有关的车轮运动状态; 基于由所述检测装置检测到的车轮运动状态来估计与所述轮胎相关的车轮信息的估计装置; 以及用于修改与车轮信息的估计有关的元件的修改装置，以便提高车轮信息的估计精度。 要修改的元件选自在车轮旋转的平面中观察到的轮胎的旋转中心的运动，从检测装置施加到估计装置的信号，以及由 用于估计车轮信息的估计装置。

    Anti-lock braking system based on an estimated gradient of friction torque, method of determining a starting point for anti-lock brake control, and wheel-behavior-quantity servo control means equipped with limit determination means
    32.
    发明授权
    Anti-lock braking system based on an estimated gradient of friction torque, method of determining a starting point for anti-lock brake control, and wheel-behavior-quantity servo control means equipped with limit determination means 失效
    基于摩擦转矩的估计梯度的防抱死制动系统，确定防抱死制动控制的起始点的方法以及配备有限制确定装置的车轮行为量伺服控制装置

    公开(公告)号：US6122585A

    公开(公告)日：2000-09-19

    申请号：US910898

    申请日：1997-08-13

    申请人： Eiichi Ono ,  Katsuhiro Asano ,  Takaji Umeno ,  Hiroyuki Yamaguchi ,  Masaru Sugai

    发明人： Eiichi Ono ,  Katsuhiro Asano ,  Takaji Umeno ,  Hiroyuki Yamaguchi ,  Masaru Sugai

    IPC分类号： B60T8/172 ,  B60T8/1763 ,  B60T8/44 ,  B60T8/48 ,  G06F7/00 ,  G06F17/00

    CPC分类号： B60T8/172 ,  B60T8/17636 ,  B60T8/445 ,  B60T8/4845 ,  B60T2210/12

    摘要： An anti-lock braking system includes a friction torque gradient estimating unit for estimating, from a small number of parameters, the gradient of friction torque with respect to a slip speed, and controls a braking force acting on wheels on the basis of the friction torque gradient estimated by the friction torque gradient estimating unit. The friction torque gradient estimating unit may employ several types of estimating methods; e.g., a method of estimating the gradient of friction torque from only time-series data concerning a wheel speed; a method of estimating the friction torque gradient from time-series data concerning wheel deceleration as well as from braking torque or time-series data concerning physical quantities associated with the braking torque; or a method of estimating the friction torque gradient from micro-gains which are obtained when brake pressure is excited in a very small amount at the resonance frequency of a vibration system comprising a vehicle, wheels, and a road surface and which represent the characteristics of the vibration system. Further, there is also disclosed a method of determining, from the thus-estimated friction torque gradient, the limit of the characteristics of friction torque developed between the wheels and the road surface.

    摘要翻译： 防抱死制动系统包括：摩擦转矩梯度估计单元，用于从少数参数估计相对于滑移速度的摩擦转矩的梯度，并且基于摩擦转矩来控制作用在车轮上的制动力 由摩擦转矩梯度估计单元估计出的梯度。 摩擦转矩梯度估计单元可以采用几种估计方法; 例如，仅从关于车轮速度的时间序列数据估计摩擦转矩的梯度的方法; 从关于车轮减速度的时间序列数据以及关于与制动转矩相关联的物理量的制动转矩或时间序列数据估计摩擦转矩梯度的方法; 或从在包括车辆，车轮和路面的振动系统的共振频率下以非常小的量激励制动压力时获得的微增益估计摩擦转矩梯度的方法，并且其代表 振动系统。 此外，还公开了一种根据这样估计的摩擦转矩梯度来确定在车轮和路面之间产生的摩擦转矩的特性的极限的方法。

    State estimating device for secondary battery
    33.
    发明授权
    State estimating device for secondary battery 有权
    二次电池状态估计装置

    公开(公告)号：US08615372B2

    公开(公告)日：2013-12-24

    申请号：US13061008

    申请日：2009-08-28

    申请人： Shuji Tomura ,  Takaji Umeno ,  Yasushi Amano ,  Yuji Nishi ,  Takeshi Takemoto ,  Nobuyasu Haga ,  Tetsuya Fuchimoto

    发明人： Shuji Tomura ,  Takaji Umeno ,  Yasushi Amano ,  Yuji Nishi ,  Takeshi Takemoto ,  Nobuyasu Haga ,  Tetsuya Fuchimoto

    IPC分类号： G06F19/00

    CPC分类号： G06F19/00 ,  G01R31/3651 ,  G01R31/3662 ,  H01M10/48 ,  H01M10/486

    摘要： A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit.

    摘要翻译： 电池状态估计单元根据每个算术循环中的电池模型等式来估计二次电池的内部状态，并且基于估计结果来估计充电率和电池电流。 参数估计单元获得由传感器测量的电池电流以及由电池状态估计单元估计的充电率和电池电流。 参数估计单元估计容量劣化参数，使得实际电流的求和值与估计电流的相加值相对于充电率之间的差值（估计误差）的变化率最小化。 通过估计容量劣化参数获得的结果由电池状态估计单元反映在电池模型中。

    DOG CLUTCH ACTUATOR
    35.
    发明申请
    DOG CLUTCH ACTUATOR 审中-公开
    DOG离合器执行器

    公开(公告)号：US20100276245A1

    公开(公告)日：2010-11-04

    申请号：US12594482

    申请日：2008-04-01

    申请人： Takaji Umeno ,  Yukio Inaguma ,  Tomokazu Yamauchi ,  Shoichi Sasaki

    发明人： Takaji Umeno ,  Yukio Inaguma ,  Tomokazu Yamauchi ,  Shoichi Sasaki

    IPC分类号： F16D11/10 ,  F16D27/118

    CPC分类号： F16D27/118 ,  F16D11/10 ,  F16D2011/002 ,  F16D2011/008 ,  F16D2500/1022 ,  F16D2500/3026 ,  F16D2500/70211 ,  F16D2500/70235 ,  F16D2500/70418

    摘要： A dog clutch actuator including a sleeve including dog teeth made engageable with the dog teeth formed in a power transmission shaft and made movable in the axial direction, and a plunger for moving together with the sleeve. The plunger is axially moved through a yoke by electric currents to flow through coils. In the dog clutch actuator, by the shapes of the plunger and the yoke, a sucking force increases in the engaging direction, when the dog clutch is engaged, and decreases in the disengaging direction, when the dog clutch is disengaged.

    摘要翻译： 一种狗离合器致动器，其包括具有与形成在动力传递轴中并且能够沿轴向移动的狗齿啮合的狗齿的套筒，以及与套筒一起移动的柱塞。 柱塞通过电流轴向移动通过磁轭流过线圈。 在爪式离合器致动器中，通过柱塞和轭的形状，当爪式离合器接合时，啮合方向上的吸力增加，并且当离合器脱离时，吸合力分离方向减小。

    Device for detecting wheel speed signal frequency
    37.
    发明授权
    Device for detecting wheel speed signal frequency 失效
    用于检测车轮速度信号频率的装置

    公开(公告)号：US06591670B1

    公开(公告)日：2003-07-15

    申请号：US09666137

    申请日：2000-09-20

    申请人： Takaji Umeno ,  Katsuhiro Asano

    发明人： Takaji Umeno ,  Katsuhiro Asano

    IPC分类号： G01M1702

    CPC分类号： B60C23/061 ,  B60C23/062

    摘要： A wheel speed is detected by a wheel speed detecting device, and a wheel speed signal is outputted to a reference value setting device. At the reference value setting device, the wheel speed signal is corrected such that a center of an amplitude of the wheel speed signal becomes a zero reference, and the wheel speed signal is amplified by carrying out a predetermined processing. Further, a selecting device selects, of the wheel speed signals during a predetermined period of time, wheel speed signals whose S/N ratios are poor, which are not to be used. A frequency detecting device judges a tire air pressure state by an air pressure state judging device from a number of times an amplified wheel speed signal crosses the zero reference (a number of times a sign changes).

    摘要翻译： 通过车轮速度检测装置检测车轮速度，将车轮速度信号输出到基准值设定装置。 在基准值设定装置中，对车轮速度信号进行校正，使得车轮速度信号的振幅的中心成为零基准，并且通过执行预定的处理来放大车轮速度信号。 此外，选择装置在预定时间段内选择不使用S / N比较差的车轮速度信号的车轮速度信号。 频率检测装置通过空气压力状态判断装置从放大的车轮速度信号越过零参考的次数（符号改变的次数）来判断轮胎空气压力状态。

    Device for estimating road friction state
    38.
    发明授权
    Device for estimating road friction state 失效
    用于估计道路摩擦状态的装置

    公开(公告)号：US06522968B1

    公开(公告)日：2003-02-18

    申请号：US09694681

    申请日：2000-10-24

    申请人： Shoji Ito ,  Masaki Yamamoto ,  Takaji Umeno ,  Katsuhiro Asano ,  Yasushi Amano ,  Satoru Onozawa ,  Shusaku Fujimoto

    发明人： Shoji Ito ,  Masaki Yamamoto ,  Takaji Umeno ,  Katsuhiro Asano ,  Yasushi Amano ,  Satoru Onozawa ,  Shusaku Fujimoto

    IPC分类号： B60T800

    CPC分类号： B60T8/172 ,  B60T2210/12

    摘要： A device for estimating a road friction state in which a friction state of a wheel with respect to a road surface can be estimated accurately. A bandpass filter extracts, from a wheel speed signal detected by a wheel speed detecting unit, a portion of the wheel speed signal in a predetermined range which includes a torsion resonance point at which a frequency is greater than a low frequency regions. A vibration level computing unit computes a vibration level of the wheel speed signal. A road friction state estimating unit estimates the friction state of the wheel with respect to the road surface on the basis of a vibration level computed by the vibration level computing unit and an estimated value of a road &mgr; slope computed by a &mgr; slope computing unit, and on the basis of a relationship between the two determined for each road surface state.

    摘要翻译： 能够准确地估计车轮相对于路面的摩擦状态的道路摩擦状态估计装置。 带通滤波器从由车轮速度检测单元检测的车轮速度信号中提取车轮速度信号的一部分在包括频率大于低频区域的扭转共振点的预定范围内。 振动级计算单元计算车轮速度信号的振动水平。 道路摩擦状态估计单元基于由振动级计算单元计算的振动水平和由μ坡度计算单元计算出的道路μa斜率的估计值来估计车轮相对于路面的摩擦状态， 并且基于对于每个路面状态确定的两者之间的关系。

    Braking estimation device, anti-lock brake controller, and braking pressure controller
    39.
    发明授权
    Braking estimation device, anti-lock brake controller, and braking pressure controller 失效
    制动估计装置，防抱死制动控制器和制动压力控制器

    公开(公告)号：US06182001B2

    公开(公告)日：2001-01-30

    申请号：US08996316

    申请日：1997-12-22

    申请人： Masaru Sugai ,  Katsuhiro Asano ,  Takaji Umeno ,  Eiichi Ono ,  Hiroyuki Yamaguchi

    发明人： Masaru Sugai ,  Katsuhiro Asano ,  Takaji Umeno ,  Eiichi Ono ,  Hiroyuki Yamaguchi

    IPC分类号： G06F700

    CPC分类号： B60T8/885 ,  B60T2270/413

    摘要： An apparatus for diagnosing a fault in a dynamic system includes a controller which controls the dynamic system through use of a control input signal and vibrates the dynamic system through use of an vibration signal irrelevant to the internal state quantity of the dynamic system; an observer for estimating, on the basis of a response output from the vibration dynamic system, total disturbance which is a sum of an internal disturbance vector stemming from a fault in the dynamic system and a vibration disturbance vector occurring in the dynamic system through vibration; a correlation calculation unit which calculates cross-correlation between the thus-estimated total disturbance and the internal state quantity of the dynamic system and separates a component related to the internal disturbance from the total disturbance; and a diagnostic unit for diagnosing a fault in the dynamic system on the basis of the thus-separated component related to the internal disturbance. Since the dynamic system is vibrated, the response output can be increased even when there exists small external disturbance. As a result, a fault or a variation in air pressure in a tire can be highly accurately diagnosed.

    摘要翻译： 用于诊断动态系统中的故障的装置包括控制器，其通过使用控制输入信号来控制动态系统，并通过使用与动态系统的内部状态量无关的振动信号来振动动态系统; 基于来自振动动态系统的响应输出，基于动态系统中的故障产生的内部干扰矢量与通过振动在动态系统中发生的振动干扰矢量之和的总干扰来估计观测器; 相关计算单元，其计算由此估计的总干扰与动态系统的内部状态量之间的互相关，并将与内部干扰有关的分量与全部干扰分离; 以及用于基于与内部干扰相关的如此分离的分量来诊断动态系统中的故障的诊断单元。 由于动态系统振动，即使存在小的外部干扰，响应输出也可以增加。 结果，可以高精度地诊断轮胎中的故障或空气压力的变化。