公开(公告)号：US07957879B2

公开(公告)日：2011-06-07

申请号：US11940227

申请日：2007-11-14

申请人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita ,  Yoshiaki Hashimura

发明人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita ,  Yoshiaki Hashimura

IPC分类号： B60T8/00 ,  B60T8/1761

CPC分类号： B60T8/17616 ,  B60T8/172 ,  B60T2210/12 ,  Y10T152/10 ,  Y10T152/10279

摘要： A brake control device is provided to a wheel equipped with a tire, which has a function of applying a brake force to the wheel to put a brake thereon while adjusting the brake force. In the device, an acceleration sensor outputs acceleration data in a radial direction of the rotating tire, a predetermined detection range is set with respect to the acceleration data, a threshold value is set with respect to a corresponding part of the acceleration data falling within the detection range, the corresponding part of the acceleration data falling within the detection range is specified. Values of the specified acceleration data are compared with the threshold value, and a control signal for causing a braking device to adjust the brake force thereof is output in a case where some values of the acceleration data are larger than the threshold value.

摘要翻译： 制动控制装置设置在配备有轮胎的车轮上，该轮具有在调节制动力的同时向车轮施加制动力以制动的功能。 在该装置中，加速度传感器输出轮胎的径向的加速度数据，相对于加速度数据设定规定的检测范围，相对于位于该加速度数据内的加速度数据的对应部分设定阈值 检测范围内，指定加在相应部分的加速度数据落在检测范围内。 将指定的加速度数据的值与阈值进行比较，并且在加速度数据的一些值大于阈值的情况下输出用于使制动装置调整其制动力的控制信号。

公开(公告)号：US07937204B2

公开(公告)日：2011-05-03

申请号：US11945068

申请日：2007-11-26

申请人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

发明人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

IPC分类号： B60T8/00

CPC分类号： B60T8/172 ,  B60T8/17636 ,  B60T2240/06

摘要： A brake control device includes a braking device provided to a wheel, the braking device having a function of applying a brake force to the wheel while adjusting the brake force. The brake control device includes: an acceleration sensor for outputting acceleration data of acceleration acting on the rotating tire in a radial direction of the tire; a contact length calculating unit for calculating contact lengths of the tire based on the acceleration data; a brake sensor for detecting that a brake force is applied and for outputting a detection signal; a judging unit for outputting, to the braking device, a brake information signal for adjusting the brake force according to comparative judgment information which is obtained by comparing the calculated contact lengths; and a brake control unit for outputting a control signal for causing the braking device to adjust a brake force thereof according to the brake information signal.

摘要翻译： 制动控制装置包括设置在车轮上的制动装置，制动装置具有在调节制动力的同时向车轮施加制动力的功能。 制动控制装置包括：加速度传感器，用于输出沿轮胎径向作用在轮胎上的加速度数据; 接触长度计算单元，用于基于加速度数据计算轮胎的接触长度; 用于检测施加制动力并用于输出检测信号的制动传感器; 判断单元，用于根据通过比较计算出的接触长度获得的比较判断信息向制动装置输出用于调节制动力的制动信息信号; 以及制动控制单元，用于输出用于使制动装置根据制动信息信号调节其制动力的控制信号。

公开(公告)号：US20090043517A1

公开(公告)日：2009-02-12

申请号：US11996249

申请日：2006-07-18

申请人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

发明人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

IPC分类号： G01L5/00

CPC分类号： B60W40/00 ,  B60G2400/104 ,  B60G2400/64 ,  B60G2400/824 ,  B60G2800/24 ,  B60T2240/04 ,  B60W30/02 ,  B60W30/095 ,  B60W30/18172 ,  B60W40/064 ,  B60W40/101 ,  B60W2520/125 ,  B60W2530/20 ,  B60W2550/402 ,  Y10T307/793

摘要： A method of calculating a cornering force to be applied to each wheel provided to a vehicle which is cornering, comprising the steps of: obtaining a magnitude of a centrifugal force to the vehicle in a direction substantially orthogonal to a vehicle traveling direction, a contact length of each wheel during the cornering of the vehicle, and an amount of deformation in a wheel width direction at the contact portion of each wheel of the vehicle, calculating a difference between the obtained amount of the deformation and an amount of deformation in the wheel width direction under a straight forward travel condition of the vehicle for each wheel, and calculating a cornering force for each wheel based on the magnitude of the centrifugal force, the contact length, and the difference between amounts of deformation in the wheel width direction.

摘要翻译： 一种计算被施加到转向车辆的每个车轮的转弯力的方法，包括以下步骤：在与车辆行驶方向大致正交的方向上获得对车辆的离心力的大小，接触长度 在车辆的转弯期间的每个车轮的车轮宽度方向上的变形量以及车辆的每个车轮的接触部分的接触部分处的变形量，计算所获得的变形量与车轮宽度中的变形量之间的差 基于每个车轮的车辆的直线向前行驶状态的方向，并且基于离心力的大小，接触长度以及车轮宽度方向上的变形量的差异来计算每个车轮的转弯力。

公开(公告)号：US20080114520A1

公开(公告)日：2008-05-15

申请号：US11940227

申请日：2007-11-14

申请人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita ,  Yoshiaki Hashimura

发明人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita ,  Yoshiaki Hashimura

IPC分类号： B60T8/171 ,  G06F19/00

CPC分类号： B60T8/17616 ,  B60T8/172 ,  B60T2210/12 ,  Y10T152/10 ,  Y10T152/10279

摘要： A brake control device is provided to a wheel equipped with a tire, which has a function of applying a brake force to the wheel to put a brake thereon while adjusting the brake force. In the device, an acceleration sensor outputs acceleration data in a radial direction of the rotating tire, a predetermined detection range is set with respect to the acceleration data, a threshold value is set with respect to a corresponding part of the acceleration data falling within the detection range, the corresponding part of the acceleration data falling within the detection range is specified. Values of the specified acceleration data are compared with the threshold value, and a control signal for causing a braking device to adjust the brake force thereof is output in a case where some values of the acceleration data are larger than the threshold value.

摘要翻译： 制动控制装置设置在配备有轮胎的车轮上，该轮具有在调节制动力的同时向车轮施加制动力以制动的功能。 在该装置中，加速度传感器输出轮胎的径向的加速度数据，相对于加速度数据设定规定的检测范围，相对于位于该加速度数据内的加速度数据的对应部分设定阈值 检测范围内，指定加在相应部分的加速度数据落在检测范围内。 将指定的加速度数据的值与阈值进行比较，并且在加速度数据的一些值大于阈值的情况下输出用于使制动装置调整其制动力的控制信号。

公开(公告)号：US20070205879A1

公开(公告)日：2007-09-06

申请号：US10594208

申请日：2005-11-21

申请人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita ,  Yoshiaki Hashimura ,  Yutaka Hattori

发明人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita ,  Yoshiaki Hashimura ,  Yutaka Hattori

IPC分类号： B60W40/06

CPC分类号： B60W40/06 ,  B60G2204/113 ,  B60G2400/10 ,  B60G2400/822 ,  B60G2800/21 ,  B60G2800/702 ,  B60T8/173 ,  B60T8/17616 ,  B60T2240/04 ,  B60W2422/70 ,  B60W2520/26

摘要： To detect a slip state in a contact region of a rotating tire on a road surface, first, the first radical direction data and the second width direction data of measurement data of acceleration at a tread portion of the rotating tire for a duration corresponding to one round of tire rotation are acquired. Second, time series data of acceleration due to tire deformation is extracted from the first radical direction data and displacement data is obtained by subjecting the time series data of acceleration due to tire deformation to a time integration of second order, thereby a deformation at the tread portion is calculated and a contact region of the rotating tire is determined from the calculated deformation. Next, from the second width direction data, a slip region within the determined contact region is specified based on vibration level of the second data.

摘要翻译： 为了检测路面上的旋转轮胎的接触区域的滑动状态，首先，对应于一个持续时间的轮胎的轮胎胎面部的加速度的测量数据的第一根方向数据和第二宽度方向数据 轮胎转动一轮。 其次，从第一根方向数据提取由于轮胎变形引起的加速度的时间序列数据，并且通过使由轮胎变形引起的加速度的时间序列数据经受二阶时间积分而获得位移数据，从而在胎面 计算出转动轮胎的接触区域。 接下来，从第二宽度方向数据，基于第二数据的振动水平来指定确定的接触区域内的滑动区域。

公开(公告)号：US20070164853A1

公开(公告)日：2007-07-19

申请号：US11624619

申请日：2007-01-18

申请人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

发明人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita

IPC分类号： B60C23/00

CPC分类号： B60T8/1725 ,  B60T2240/04

摘要： An apparatus and method derives a deformation amount of a contact-portion of the tire based on the tire information, the contact-portion being in contact with the ground, and calculates an evaluation value based on the derived deformation amount, and comparing the calculated evaluation value with a reference value to determine whether or not the internal mechanical failure has occurred in the tire.

摘要翻译： 一种装置和方法，基于轮胎信息，接触部与地面接触而导出轮胎的接触部的变形量，并根据导出的变形量计算评价值，并将计算出的评价 值与参考值，以确定轮胎中是否发生内部机械故障。

公开(公告)号：US08160775B2

公开(公告)日：2012-04-17

申请号：US12336322

申请日：2008-12-16

申请人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita

发明人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita

IPC分类号： B62D17/00 ,  G06F17/00

CPC分类号： B60G17/0164 ,  B60G17/01908 ,  B60G17/0195 ,  B60G2200/46 ,  B60G2200/462 ,  B60G2204/113 ,  B60G2400/05 ,  B60G2400/10 ,  B60G2400/104 ,  B60G2400/1042 ,  B60G2400/39 ,  B60G2401/10 ,  B60G2600/02 ,  B60G2600/60 ,  B60G2800/22 ,  B60G2800/912 ,  B60T8/1725 ,  B62D17/00

摘要： A wheel attitude control method of the invention comprises the steps of: chronologically obtaining acceleration data in a radial direction of a tire at a center position of a tire tread and at an off-center position spaced apart from the center position toward a shoulder; obtaining respective contact lengths at the center position and the off-center position from the acceleration data; and controlling a wheel attitude, which varies in accordance with changes in a load applied to the wheel when the braking force is imparted to the wheel, based on the obtained contact length at the center position and the obtained contact length at the off-center position.

摘要翻译： 本发明的车轮姿态控制方法包括以下步骤：按照时间顺序地获得在轮胎胎面的中心位置处的轮胎的径向方向上的加速度数据和与中心位置向肩部间隔开的偏心位置; 从加速度数据获得在中心位置和偏离中心位置处的相应接触长度; 并且基于获得的中心位置的接触长度和所得到的离心位置的接触长度，控制根据在向车轮施加制动力时施加到车轮的负载的变化而变化的车轮姿态 。

公开(公告)号：US07918131B2

公开(公告)日：2011-04-05

申请号：US10594208

申请日：2005-11-21

申请人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita ,  Yoshiaki Hashimura ,  Yutaka Hattori

发明人： Jun Matsuda ,  Tsuyoshi Kitazaki ,  Naoshi Miyashita ,  Yoshiaki Hashimura ,  Yutaka Hattori

IPC分类号： B60C23/02

CPC分类号： B60W40/06 ,  B60G2204/113 ,  B60G2400/10 ,  B60G2400/822 ,  B60G2800/21 ,  B60G2800/702 ,  B60T8/173 ,  B60T8/17616 ,  B60T2240/04 ,  B60W2422/70 ,  B60W2520/26

摘要： To detect a slip state in a contact region of a rotating tire on a road surface, first, the first radical direction data and the second width direction data of measurement data of acceleration at a tread portion of the rotating tire for a duration corresponding to one round of tire rotation are acquired. Second, time series data of acceleration due to tire deformation is extracted from the first radical direction data and displacement data is obtained by subjecting the time series data of acceleration due to tire deformation to a time integration of second order, thereby a deformation at the tread portion is calculated and a contact region of the rotating tire is determined from the calculated deformation. Next, from the second width direction data, a slip region within the determined contact region is specified based on vibration level of the second data.

摘要翻译： 为了检测路面上的旋转轮胎的接触区域的滑动状态，首先，对应于一个持续时间的轮胎的轮胎胎面部的加速度的测量数据的第一根方向数据和第二宽度方向数据 轮胎转动一轮。 其次，从第一根方向数据提取由于轮胎变形引起的加速度的时间序列数据，并且通过使由轮胎变形引起的加速度的时间序列数据经受二阶时间积分而获得位移数据，从而在胎面 计算出转动轮胎的接触区域。 接下来，从第二宽度方向数据，基于第二数据的振动水平来指定确定的接触区域内的滑动区域。

公开(公告)号：US20090171531A1

公开(公告)日：2009-07-02

申请号：US12336322

申请日：2008-12-16

申请人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita

发明人： Tsuyoshi Kitazaki ,  Jun Matsuda ,  Naoshi Miyashita

IPC分类号： B62D17/00 ,  G06F17/00

CPC分类号： B60G17/0164 ,  B60G17/01908 ,  B60G17/0195 ,  B60G2200/46 ,  B60G2200/462 ,  B60G2204/113 ,  B60G2400/05 ,  B60G2400/10 ,  B60G2400/104 ,  B60G2400/1042 ,  B60G2400/39 ,  B60G2401/10 ,  B60G2600/02 ,  B60G2600/60 ,  B60G2800/22 ,  B60G2800/912 ,  B60T8/1725 ,  B62D17/00

摘要： A wheel attitude control method of the invention comprises the steps of: chronologically obtaining acceleration data in a radial direction of a tire at a center position of a tire tread and at an off-center position spaced apart from the center position toward a shoulder; obtaining respective contact lengths at the center position and the off-center position from the acceleration data; and controlling a wheel attitude, which varies in accordance with changes in a load applied to the wheel when the braking force is imparted to the wheel, based on the obtained contact length at the center position and the obtained contact length at the off-center position.

摘要翻译： 本发明的车轮姿态控制方法包括以下步骤：按照时间顺序地获得在轮胎胎面的中心位置处的轮胎的径向方向上的加速度数据和与中心位置向肩部间隔开的偏心位置; 从加速度数据获得在中心位置和偏离中心位置处的相应接触长度; 并且基于获得的中心位置的接触长度和所得到的离心位置的接触长度，控制根据在向车轮施加制动力时施加到车轮的负载的变化而变化的车轮姿态 。

公开(公告)号：US07483821B2

公开(公告)日：2009-01-27

申请号：US10942830

申请日：2004-09-17

申请人： Naoshi Miyashita ,  Kazuyuki Kabe

发明人： Naoshi Miyashita ,  Kazuyuki Kabe

IPC分类号： G06F9/455

CPC分类号： G01M17/02 ,  B60C19/00 ,  B60C99/006

摘要： A method for tire parameter derivation, tire cornering characteristic calculation and tire design is used with a tire dynamic model constituted by using a plurality of tire dynamic element parameters including stiffness and friction coefficient and parameter defining a distribution of contact pressure of the tire. The parameters and tire cornering characteristic are derived by using the combined sum of squared residuals being obtained by weighted addition of a first sum of squared residuals of lateral force and a second sum of squared residuals of self-aligning torque. The tire dynamic model is a model for calculating a lateral force and for calculating a self-aligning torque separately as a lateral force-based torque component generated by the lateral force applied on a contact patch of the tire and a longitudinal force-based torque component generated by a longitudinal force applied on the contact patch of the tire.

摘要翻译： 轮胎参数导出，轮胎转弯特性计算和轮胎设计的方法与轮胎动态模型一起使用，该轮胎动态模型通过使用包括刚度和摩擦系数以及限定轮胎的接触压力分布的参数的多个轮胎动态元件参数构成。 参数和轮胎转弯特性是通过使用通过加权加上横向力的平方残差的第一和和自对准扭矩的平方残差的第二和来获得的平方残差的组合和导出的。 轮胎动力学模型是用于计算横向力并用于单独计算自对准扭矩的模型，作为由施加在轮胎的接触片上的横向力产生的横向力基扭矩分量和纵向力基扭矩分量 由施加在轮胎接触片上的纵向力产生。