Road surface frictional coefficient estimating apparatus
    12.
    发明授权
    Road surface frictional coefficient estimating apparatus 有权
    路面摩擦系数估计装置

    公开(公告)号:US08315758B2

    公开(公告)日:2012-11-20

    申请号:US12704085

    申请日:2010-02-11

    Abstract: A road surface frictional coefficient estimating apparatus has a device for determining a first estimated value of a yaw moment Mnsp_estm generated at an NSP of a vehicle due to the resultant force of road surface reaction forces acting on each wheel by using, for example, a frictional coefficient estimated value that has been determined, and a device for determining a second estimated value of a yaw moment Mnsp_sens generated at the NSP from the observed value of motional state amounts defining an inertial force moment at the NSP. The increasing/decreasing manipulated variable of the frictional coefficient estimated value is sequentially determined on an error (Mnsp_sens−Mnsp_estm) such that the error is converged to zero, and the road surface frictional coefficient is updated on the basis of the increasing/decreasing manipulated variable.

    Abstract translation: 路面摩擦系数估计装置具有用于确定在车辆的NSP处产生的横摆力矩Mnsp_estm的第一估计值的装置,这是由于作用在每个车轮上的路面反作用力的合力,例如通过摩擦 已经确定的系数估计值,以及用于根据在NSP处限定惯性力矩的运动状态量的观测值来确定在NSP处产生的偏航力矩Mnsp_sens的第二估计值的装置。 根据误差(Mnsp_sens-Mnsp_estm)依次确定摩擦系数估计值的增加/减少操作变量,使得误差收敛到零,并且基于增加/减少的操作变量来更新路面摩擦系数 。

    ROAD SURFACE FRICTIONAL COEFFICIENT ESTIMATING APPARATUS
    13.
    发明申请
    ROAD SURFACE FRICTIONAL COEFFICIENT ESTIMATING APPARATUS 有权
    道路表面摩擦系数估计装置

    公开(公告)号:US20100211256A1

    公开(公告)日:2010-08-19

    申请号:US12704085

    申请日:2010-02-11

    Abstract: A road surface frictional coefficient estimating apparatus has a device for determining a first estimated value of a yaw moment Mnsp_estm generated at an NSP of a vehicle due to the resultant force of road surface reaction forces acting on each wheel by using, for example, a frictional coefficient estimated value that has been determined, and a device for determining a second estimated value of a yaw moment Mnsp_sens generated at the NSP from the observed value of motional state amounts defining an inertial force moment at the NSP. The increasing/decreasing manipulated variable of the frictional coefficient estimated value is sequentially determined on an error (Mnsp_sens−Mnsp_estm) such that the error is converged to zero, and the road surface frictional coefficient is updated on the basis of the increasing/decreasing manipulated variable.

    Abstract translation: 路面摩擦系数估计装置具有用于确定在车辆的NSP处产生的横摆力矩Mnsp_estm的第一估计值的装置,这是由于作用在每个车轮上的路面反作用力的合力,例如通过摩擦 已经确定的系数估计值,以及用于根据在NSP处限定惯性力矩的运动状态量的观测值来确定在NSP处产生的偏航力矩Mnsp_sens的第二估计值的装置。 根据误差(Mnsp_sens-Mnsp_estm)依次确定摩擦系数估计值的增加/减少操作变量,使得误差收敛到零,并且基于增加/减少的操作变量来更新路面摩擦系数 。

    Picture display apparatus and method
    14.
    发明申请
    Picture display apparatus and method 审中-公开
    图像显示装置及方法

    公开(公告)号:US20070223809A1

    公开(公告)日:2007-09-27

    申请号:US11717055

    申请日:2007-03-13

    Applicant: Osamu Yano

    Inventor: Osamu Yano

    CPC classification number: G09G5/006 G09G2320/08

    Abstract: A picture display apparatus which has a control-data storage section which stores signal-processing control data generated by a control-data generating section, the stored data being related to an input terminal designated by an operating section, and which reads out signal-processing control data relating to another input terminal when the designated input terminal is switched to the other input terminal. When the signal-processing control data is generated by the control data generating section, signal processing is made in accordance with the generated signal-processing control data. When signal-processing control data is read out from the control-data storage section, the signal processing is made in accordance with the read-out signal-processing control data.

    Abstract translation: 一种图像显示装置,具有控制数据存储部,其存储由控制数据生成部生成的信号处理控制数据,所存储的数据与由操作部指定的输入端相关,并且读出信号处理 当指定的输入端切换到另一输入端时,控制与另一输入端相关的数据。 当控制数据生成部生成信号处理控制数据时,根据生成的信号处理控制数据进行信号处理。 当从控制数据存储部分读出信号处理控制数据时,根据读出的信号处理控制数据进行信号处理。

    Wheel pressure-reduction determining system for vehicle
    15.
    发明授权
    Wheel pressure-reduction determining system for vehicle 失效
    车轮减速决定系统

    公开(公告)号:US5866812A

    公开(公告)日:1999-02-02

    申请号:US729242

    申请日:1996-10-09

    CPC classification number: B60C23/061

    Abstract: A reduction in tire pressure in follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels through the use of apparatus wherein in a driven wheel slip amount calculating means M4 calculates a driven wheel slip amount KIDD as a left and right follower wheel speed difference FID and a left and right driven wheel speed difference RID; in a driven wheel torque calculating means M5, a driven wheel torque TQDW is calculated; in a driven wheel slip amount estimating means M6, a characteristic of variation in driven wheel slip amount KIDD relative to the variation in driven wheel torque TQDW is estimated using a least squares method; in a deviation calculating means M7, a deviation CKID between the follower wheel speed difference FID and the driven wheel speed difference RID in a state in which the driven wheels are not slipping, is calculated as an intercept of the driven wheel slip amount KIDD at a driven wheel torque equal to 0 (zero) in a graph of the variation characteristic; and in a wheel pressure-reduction determining means M8, a reduction in tire pressure is determined from a difference in diameter between the follower wheels and the driven wheels by comparing the deviation CKID with a reference value.

    Abstract translation: 随动轮和从动轮的轮胎压力的降低被精确地确定,而与通过使用装置的从动轮的滑动状态无关,其中在从动轮打滑量计算装置M4计算作为左右跟随器的从动轮滑移量KIDD 车轮速度差FID和左右驱动轮速差RID; 在从动轮转矩计算装置M5中,计算从动轮转矩TQDW; 在从动轮滑移量估计装置M6中,使用最小二乘法来估计从动轮滑动量KIDD相对于从动轮扭矩TQDW的变化的变化的特性; 在偏差计算装置M7中,计算在从动轮未滑动的状态下的从动轮速度差FID与从动轮速度差RID之间的偏差CKID作为从动轮滑移量KIDD的截距, 驱动轮转矩在变化特性曲线图中等于0(零); 并且在车轮压力降低确定装置M8中,通过将偏差CKID与参考值进行比较,根据从动轮和从动轮之间的直径差来确定轮胎压力的降低。

    Tire pressure-reduction determining system for wheels of a vehicle
    16.
    发明授权
    Tire pressure-reduction determining system for wheels of a vehicle 失效
    车辆轮胎的轮胎减压判定系统

    公开(公告)号:US5747686A

    公开(公告)日:1998-05-05

    申请号:US729235

    申请日:1996-10-09

    CPC classification number: B60C23/061

    Abstract: A reduction in pressure in tires fitted to follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels. A driven wheel slip rate calculating means M1 calculates driven wheel slip rates .lambda.L and .lambda.R. A driven wheel torque calculating means M2 calculates a driven wheel torque TQDW. A driven wheel slip rate estimating means M4 estimates a characteristic of variation in driven wheel slip rates .lambda.L and .lambda.R relative to the variation in driven wheel torque TQDW using a least squares method. A rotation-number ratio calculating means M5 calculates ratios CVWL and CVWR of the numbers of rotations of the follower wheels to the numbers of rotations of the driven wheels in a state in which the driven wheel torque in a graph of the variation characteristic is equal to zero. A tire pressure-reduction determining means M6 then determines a reduction in pressure from a difference in diameter between the follower wheels and the driven wheels by comparing the rotation-number ratios CVWL and CVWR with a reference value.

    Abstract translation: 无论滑动状态如何,精确地确定安装在从动轮和从动轮上的轮胎的压力降低。 从动轮滑移率计算装置M1计算从动轮滑移率λL和λR。从动轮转矩计算装置M2计算从动轮转矩TQDW。 从动轮滑移率估计装置M4使用最小二乘法估计从动轮滑移率λL和λR相对于从动轮转矩TQDW的变化的变化的特性。 旋转数比计算装置M5在变化特性的曲线图中的从动轮转矩等于等于的状态下计算从动轮的转数相对于从动轮的转数的比率CVWL和CVWR 零。 轮胎压力降低确定装置M6然后通过将旋转数比CVWL和CVWR与参考值进行比较来确定从从动轮和从动轮之间的直径差减小的压力。

    Longitudinal grip force estimating device and slip control device for
vehicle
    18.
    发明授权
    Longitudinal grip force estimating device and slip control device for vehicle 失效
    车辆纵向抓地力估计装置和滑移控制装置

    公开(公告)号:US5652383A

    公开(公告)日:1997-07-29

    申请号:US560097

    申请日:1995-11-17

    CPC classification number: B60T8/172 B60K28/16 B60T8/1725 B60T2240/02

    Abstract: A first longitudinal grip force FGG is calculated by differentiating a vehicle body speed by time. A driven wheel torque is calculated from an engine torque and a second longitudinal grip force FGT is calculated from the driven wheel torque. The first longitudinal grip force FGG and the second longitudinal grip force FGT are compared with each other, and the higher one of such grip force is selected as a longitudinal grip force TG. When the vehicle travels on a normal flat road, the first longitudinal grip force FGG obtained from the vehicle body speed is selected. But when the vehicle travels on an ascent road, on which the first longitudinal grip does not indicate an accurate value, the second longitudinal grip force FGT obtained from the engine torque is selected. With this arrangement, the longitudinal grip force is accurately estimated even if the vehicle travels on such an ascent road.

    Abstract translation: 第一纵向夹紧力FGG是通过按照时间差分车体速度来计算的。 从发动机扭矩计算从动轮扭矩,并且根据从动轮扭矩计算第二纵向夹紧力FGT。 将第一纵向抓握力FGG和第二纵向抓握力FGT彼此进行比较,并且将这种夹持力中的较高者选择为纵向抓握力TG。 当车辆在正常平坦的道路上行驶时,选择从车体速度获得的第一纵向抓握力FGG。 但是,当车辆在上坡道上行驶时,第一纵向把手不指示准确值,则选择从发动机扭矩获得的第二纵向夹紧力FGT。 利用这种布置,即使车辆在这样的上升道路上行驶,也能够准确地估计纵向抓地力。

    System for determining pneumatic tire pressure for motor vehicle
    19.
    发明授权
    System for determining pneumatic tire pressure for motor vehicle 失效
    用于确定机动车辆充气轮胎压力的系统

    公开(公告)号:US5589815A

    公开(公告)日:1996-12-31

    申请号:US329941

    申请日:1994-10-26

    CPC classification number: B60C23/061

    Abstract: The rotational speed difference between rotational speeds of front and rear road wheels of a motor vehicle is weighted by a first ratio, and the difference between the rotational speed difference between rotational speeds of front left and right road wheels and an average signal of reference steering angle or between the rotational speed difference between rotational speeds of rear left and right road wheels and the average signal of reference steering angle is weighted by a second ratio. A sum signal representative of the sum of the rotational speed difference weighted by the first ratio and the difference weighted by the second ratio is used to determine a pneumatic tire pressure reduction highly accurately even when running conditions of the motor vehicle change such as when the motor vehicle makes a turn.

    Abstract translation: 机动车辆的前后车轮的转速之间的转速差由第一比例加权,前左右车轮的转速与基准转向角的平均信号之间的差 或左后车轮的转速与基准转向角的平均信号之间的转速差以第二比例进行加权。 代表由第一比率加权的转速差和由第二比率加权的差的总和的和信号用于即使在机动车辆的运行条件改变时,例如当马达 车辆轮到

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