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1. 发明授权

US06711508B2 Method and apparatus for estimating tire air pressure 失效
标题翻译：估算轮胎气压的方法和装置
公开(公告)号：US06711508B2
公开(公告)日：2004-03-23
申请号：US09993630
申请日：2001-11-27
申请人： Kazuhiro Kamiya , Yukio Mori , Takaji Umeno , Hideki Ohashi , Yuichi Inoue , Takeyasu Taguchi
发明人： Kazuhiro Kamiya , Yukio Mori , Takaji Umeno , Hideki Ohashi , Yuichi Inoue , Takeyasu Taguchi
IPC分类号： G01L700
CPC分类号： B60C23/062 , B60C23/061 , G01H13/00 , G01L17/00 , G01N3/405 , G01N2203/0676
摘要： The invention provides an apparatus and a method of estimating tire air pressure with high accuracy from vehicle operation at low at high speeds regardless of various elements to be mounted to the vehicle. Estimation of tire air pressure based on a resonance frequency extracted based on a wheel speed signal outputted from a wheel speed sensor corresponding to the respective tire and estimation of tire air pressure based on a dynamic load radius derived based on the wheel speed signal, are used to selectively switch in accordance with a magnitude of a variance value of the resonance frequency at a plurality of time points.
摘要翻译：本发明提供一种以低速高速从车辆操作以高精度估计轮胎空气压力的装置和方法，而不管要安装到车辆的各种元件如何。使用基于从对应于各个轮胎的车轮速度传感器输出的车轮速度信号提取的谐振频率和基于基于车轮速度信号导出的动态负载半径的轮胎气压估计的轮胎气压的估计。根据多个时间点的谐振频率的方差值的大小选择性地切换。

2. 发明授权

US06575023B2 Tire air pressure determining apparatus and method of determining tire air pressure 失效
标题翻译：轮胎气压测定装置及确定轮胎气压的方法
公开(公告)号：US06575023B2
公开(公告)日：2003-06-10
申请号：US09838291
申请日：2001-04-20
申请人： Hideki Ohashi , Masahiro Yonetani , Yukio Mori , Takeyasu Taguchi , Yuichi Inoue , Takaji Umeno
发明人： Hideki Ohashi , Masahiro Yonetani , Yukio Mori , Takeyasu Taguchi , Yuichi Inoue , Takaji Umeno
IPC分类号： G01M1702
CPC分类号： B60C23/061
摘要： A variable value (dynamic load radial deviation &bgr;) for making determination of a tire air pressure is calculated from pulse number cumulative values PFL, PFR, PRL and PRR that are cumulated for individual wheels when a predetermined condition is fulfilled. The calculated variable value is stored as a reference variable value, and a speed of a vehicle at the time when the reference variable value is calculated is stored as a reference vehicle speed associated with the reference variable value. If the value is newly calculated, it is determined whether or not a vehicle speed at that moment is within a predetermined vehicle speed range determined by the reference vehicle speed. If it is determined that the vehicle speed is within the predetermined vehicle speed range, it is determined, based on a difference between the newly calculated variable value and the reference variable value associated with the reference vehicle speed, whether or not the tire air pressure is normal. Thus, even if the vehicle is fitted with one or more tires that depend greatly on vehicle speed, the possibility of erroneously determining that a tire air pressure is not normal can be eliminated.
摘要翻译：当满足预定条件时，根据对各个车轮累积的脉冲数累计值PFL，PFR，PRL和PRR计算用于确定轮胎空气压力的可变值（动态载荷径向偏差β）。计算的变量值被存储为参考变量值，并且将计算参考可变值时的车辆速度存储为与参考变量值相关联的参考车辆速度。如果新计算了该值，则确定该时刻的车速是否在基准车速决定的预定车速范围内。如果确定车速在预定车速范围内，则基于新计算的可变值与与基准车速相关联的参考变量值之间的差来确定轮胎气压是否为因此，即使车辆配备有一个或多个非常依赖于车辆速度的轮胎，也可以消除错误地确定轮胎气压不正常的可能性。

3. 发明授权

US06940399B2 Tire air pressure detection device for detecting air pressure based on vehicle speed signal 失效
标题翻译：用于根据车速信号检测气压的轮胎气压检测装置
公开(公告)号：US06940399B2
公开(公告)日：2005-09-06
申请号：US10264263
申请日：2002-10-04
申请人： Motonori Tominaga , Toshiharu Naito , Takeyasu Taguchi , Yuichi Inoue , Masahiro Yonetani , Masaaki Tabata , Hideki Ohashi , Kazuhiro Kamiya , Yukio Mori
发明人： Motonori Tominaga , Toshiharu Naito , Takeyasu Taguchi , Yuichi Inoue , Masahiro Yonetani , Masaaki Tabata , Hideki Ohashi , Kazuhiro Kamiya , Yukio Mori
IPC分类号： B60C23/06 , B60C23/00
CPC分类号： B60C23/061
摘要： A tire air pressure detection device includes an ideal driving status calculating portion (3e) and a rotational status value compensating portion (3f). The ideal driving status calculating portion calculates an ideal status value (βid) corresponding to a slip value under an ideal driving status without tire slippage. The rational status value compensating portion calculates and ideal rotational status value under the ideal driving status without tire slip based on the regression line calculated by a regression line calculating portion (3d) and the ideal slip status value calculated by the ideal driving status calculating portion.
摘要翻译：轮胎气压检测装置包括理想驾驶状态计算部（3e）和旋转状态值补偿部（3f）。理想驾驶状态计算部分在没有轮胎滑动的情况下，计算在理想驾驶状态下对应于滑移值的理想状态值（betaid）。合理状态值补偿部分根据由回归线计算部分（3d）计算的回归线和由理想驾驶状态计算部分计算出的理想滑移状态值，在没有轮胎打滑的理想驾驶状态下计算和理想旋转状态值。

4. 发明授权

US5913241A Apparatus for estimating vehicle tire air pressure from not only tired wheel motion but also tire temperature 失效
标题翻译：用于从不仅轮胎运动而且轮胎温度估算车辆轮胎气压的装置
公开(公告)号：US5913241A
公开(公告)日：1999-06-15
申请号：US861737
申请日：1997-05-22
申请人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Takeyasu Taguchi , Kenji Fujiwara , Takaji Umeno
发明人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Takeyasu Taguchi , Kenji Fujiwara , Takaji Umeno
IPC分类号： G01L17/00 , B60C23/00 , B60C23/06 , B60C23/20 , G01K1/14 , B60C23/02 , E01C23/00
CPC分类号： B60C23/062 , B60C23/061 , B60C23/20
摘要： An apparatus for estimating an air pressure of a tire of a tired wheel of a motor vehicle, on the basis of a temperature of the tire as well as a motion of the tired wheel, preferably including a temperature-related variable sensor for detecting a temperature-related variable related to the temperature of the tire, and an estimating device for estimating the air pressure of the tire on the basis of the temperature-related variable as well as the motion of the tired wheel.
摘要翻译：基于轮胎的温度以及轮胎的运动来估计机动车辆的轮胎的轮胎的空气压力的装置，优选地包括用于检测温度的温度相关的可变传感器与轮胎的温度有关的变量，以及用于基于温度相关变量以及疲劳轮的运动来估计轮胎的气压的估计装置。

5. 发明授权

US06768418B2 Tire air pressure detection device for detecting air pressure based on vehicle speed signal 失效
标题翻译：用于根据车速信号检测气压的轮胎气压检测装置
公开(公告)号：US06768418B2
公开(公告)日：2004-07-27
申请号：US10264282
申请日：2002-10-04
申请人： Motonori Tominaga , Toshiharu Naito , Takeyasu Taguchi , Masaaki Tabata , Hideki Ohashi , Yukio Mori
发明人： Motonori Tominaga , Toshiharu Naito , Takeyasu Taguchi , Masaaki Tabata , Hideki Ohashi , Yukio Mori
IPC分类号： B60C2300
CPC分类号： B60C23/061
摘要： A tire air pressure detection device of the present invention includes a warning anticipation timing calculating portion for anticipating a warning timing at which tire air pressure decrease detecting portion will detect the tire air pressure decrease based on rotational status value compensated for by a rotational status value compensating portion. A tire air pressure decrease detecting portion detects a decrease in tire air pressure when a clocked determination time reaches the warning anticipation timing anticipated by the warning anticipation timing calculating portion.
摘要翻译：本发明的轮胎气压检测装置包括警报预期定时计算部，其用于根据通过旋转状态值补偿补偿的旋转状态值来预测轮胎气压降低检测部将检测到轮胎气压下降的警告时刻一部分。轮胎空气压力下降检测部分当时钟确定时间达到警告预期定时计算部分预期的警告预期定时时，检测轮胎空气压力的下降。

6. 发明授权

US6092028A Apparatus for estimating tire air pressure 有权
标题翻译：用于估计轮胎气压的装置
公开(公告)号：US6092028A
公开(公告)日：2000-07-18
申请号：US131171
申请日：1998-08-07
申请人： Toshiharu Naito , Takeyasu Taguchi , Hideki Kabune , Yuichi Inoue , Nobuyoshi Onogi
发明人： Toshiharu Naito , Takeyasu Taguchi , Hideki Kabune , Yuichi Inoue , Nobuyoshi Onogi
IPC分类号： B60C23/06 , B60C23/00
CPC分类号： B60C23/062 , B60C23/061
摘要： A signal processor comprises wheel speed-detecting means for detecting a wheel speed signal including vibrational components of a tire, extraction means for extracting a resonant frequency of the vibrational components of the tire or a tire spring constant based on the wheel speed signals, air pressure-estimating means for estimating a tire air pressure based on the resonant frequency or the tire spring constant, and determining means for determining whether the estimated tire air pressure is abnormal or not by comparing with a determination value. Further, correcting means corrects at least one of the determination value, the estimated tire air pressure, the resonant frequency and the tire spring constant in response to a tire temperature. A temperature-sensing device is mounted inside the signal processor to detect a temperature associated with the tire temperature.
摘要翻译：信号处理器包括用于检测包括轮胎的振动分量的车轮速度信号的车轮速度检测装置，用于基于车轮速度信号提取轮胎的振动分量的共振频率或轮胎弹簧常数的提取装置，空气压力 - 估计装置，用于基于共振频率或轮胎弹簧常数来估计轮胎气压;以及确定装置，用于通过与确定值进行比较来确定估计的轮胎气压是否异常。此外，校正装置根据轮胎温度校正判定值，估计轮胎气压，共振频率和轮胎弹簧的至少一个。温度感测装置安装在信号处理器内以检测与轮胎温度相关的温度。

7. 发明授权

US6014599A Tire abnormality sensor 失效
标题翻译：轮胎异常传感器
公开(公告)号：US6014599A
公开(公告)日：2000-01-11
申请号：US919471
申请日：1997-08-28
申请人： Yuichi Inoue , Takeyasu Taguchi
发明人： Yuichi Inoue , Takeyasu Taguchi
IPC分类号： B60C23/06 , B60C23/00
CPC分类号： B60C23/061
摘要： To achieve both accuracy in correcting sensing error caused by nonstandard factors of a pulse signal generated by rotation of a rotor to be measured and reduction in cost of an apparatus for doing the same, each passage of rotor sensors which rotate integrally with vehicle tires are sensed to produce pulse signals. The pulse signal periods are sequentially integrated every pulse signal train consisting of multiple pulse signals. When all of the pulse signal periods of the pulse signal train are integrated, the integrated value is stored in memory. The memory always stores the integrated values of the newest one rotation of the rotor to be measured. The pulse signal periods are averaged from the sum of the integrated values. With such a construction, the average of the pulse signal periods can be obtained as a learning reference value in the correction without storing all of the pulse signal periods of one rotation, thereby realizing both correction accuracy and cost reduction.
摘要翻译：为了实现校正由要测量的转子的旋转产生的脉冲信号的非标准因素导致的感测误差的精度和用于进行相同的设备的成本的降低，感测与车辆轮胎一体旋转的转子传感器的每个通道产生脉冲信号。每个由多个脉冲信号组成的脉冲信号串顺序地集成脉冲信号周期。当脉冲信号列的所有脉冲信号周期被积分时，积分值被存储在存储器中。存储器总是存储要测量的转子的最新一圈的积分值。脉冲信号周期从积分值的和中取平均值。通过这样的结构，可以获得脉冲信号周期的平均值作为校正中的学习基准值，而不存储一个旋转的所有脉冲信号周期，从而实现校正精度和成本降低。

8. 发明授权

US07228219B2 Straight running judging device for vehicles 失效
标题翻译：车辆直行判断装置
公开(公告)号：US07228219B2
公开(公告)日：2007-06-05
申请号：US10489617
申请日：2003-02-12
申请人： Motonori Tominaga , Yukio Mori , Takeyasu Taguchi
发明人： Motonori Tominaga , Yukio Mori , Takeyasu Taguchi
IPC分类号： G01C17/38
CPC分类号： B60C23/061 , B60T8/172
摘要： A straight running state is accurately determined using only wheel speed data in any running state. Based upon right and left wheel speed values calculated by a wheel speed calculating mechanism (13) from detection values of right and left wheel speed sensors (11, 12), a wheel speed ratio calculating mechanism (21), a distance calculating mechanism (31), and a distance ratio calculating mechanism (32) respectively calculate a right and left wheel speed ratio, an actual running distance, a linear distance, and a distance ratio of the two distances at every preset checkpoint (CP). A wheel speed ratio change amount evaluating mechanism (24) extracts CPs at times where a change amount of the wheel speed ratio is relatively small as effective CPs, and a determining mechanism (43) determines an effective CP with the smallest distance ratio from among the effective CPs as in a straight running state.
摘要翻译：在任何运行状态下，仅使用车轮速度数据来精确地确定直线运行状态。根据来自左右车轮速度传感器（11,12）的检测值的车轮速度计算机构（13）计算的左右轮速值，车轮速比计算机构（21），距离计算机构（31）），并且距离比计算机构（32）分别计算在每个预设检查点（CP）处的两个距离的左右车轮速比，实际行驶距离，线性距离和距离比。轮速比变化量评估机构（24）在轮速比的变化量相对较小的时候提取CP，并且确定机构（43）确定距离比率最小的有效CP，有效CP在直线运行状态。

9. 发明授权

US06450020B1 Tire air pressure warning device 失效
标题翻译：轮胎气压报警装置
公开(公告)号：US06450020B1
公开(公告)日：2002-09-17
申请号：US09649817
申请日：2000-08-28
申请人： Toshiharu Naito , Mamoru Sawada , Takeyasu Taguchi , Yuichi Inoue
发明人： Toshiharu Naito , Mamoru Sawada , Takeyasu Taguchi , Yuichi Inoue
IPC分类号： B60C2302
CPC分类号： B60C23/062 , B60C23/061
摘要： In a tire air pressure warning device, an outside impact such as hydraulic brake pressure is intentionally applied in a pulsating way to a tire when the vehicle substantially stops so as to exert vibration (rotation variation) of the tire axle. Through data processes in analyzing signals of wheel speed sensors that reflect the rotation variation of the tire axle, tire air pressure is estimated for informing to a driver abnormal tire air pressure.
摘要翻译：在轮胎气压警告装置中，当车辆基本上停止时，轮胎轴的振动（旋转变化）发生时，有意地以脉动的方式施加液压制动压力等外部冲击。通过分析反映轮胎轴的旋转变化的车轮速度传感器的信号的数据处理，轮胎空气压力被估计用于通知驾驶员异常的轮胎空气压力。

10. 发明授权

US06385553B1 Tire air pressure estimating apparatus 失效
标题翻译：轮胎气压估计装置
公开(公告)号：US06385553B1
公开(公告)日：2002-05-07
申请号：US09210960
申请日：1998-12-15
申请人： Toshiharu Naito , Nobuyoshi Onogi , Takeyasu Taguchi
发明人： Toshiharu Naito , Nobuyoshi Onogi , Takeyasu Taguchi
IPC分类号： B60C2300
CPC分类号： B60C23/062 , B60C23/061
摘要： In a tire air pressure estimating apparatus, wheel speeds of respective wheels are successively calculated when a vehicle is running. At least one of a tire resonance frequency and a tire spring constant is extracted from vibration frequency components included in a wheel speed signal with respect to each of tires. Tire air pressures of drive wheels are estimated based on the extracted tire resonance frequencies or the tire spring constants. Rotational state values (e.g. wheel speed values) of driven wheel tires are calculated based on the detected wheel speeds. Tire air pressures of driven wheels are estimated based on a deviation of the rotational state values of the driven wheel tires.
摘要翻译：在轮胎气压推定装置中，当车辆行驶时，依次计算各车轮的车轮速度。轮胎共振频率和轮胎弹簧常数中的至少一个相对于每个轮胎从包括在车轮速度信号中的振动频率分量中提取出来。基于提取的轮胎共振频率或轮胎弹簧常数来估计驱动轮的轮胎空气压力。基于检测到的车轮速度来计算从动轮胎的旋转状态值（例如车轮速度值）。基于从动轮轮胎的旋转状态值的偏差来估计从动轮的轮胎气压。

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