专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5531110A Method and apparatus for estimating disturbance acting on vehicle tired wheel based on wheel angular velocity and equation of state 失效
标题翻译：基于车轮角速度和状态方程估计车辆轮胎轮胎干扰的方法和装置
公开(公告)号：US5531110A
公开(公告)日：1996-07-02
申请号：US280214
申请日：1994-07-25
申请人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Nobuo Hiraiwa , Katsuhiro Asano , Takaji Umeno , Toshimichi Takahashi
发明人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Nobuo Hiraiwa , Katsuhiro Asano , Takaji Umeno , Toshimichi Takahashi
IPC分类号： G01P3/44 , B60C23/00 , B60C23/06 , G01L5/00 , G01L17/00 , G01M17/013 , G01M17/02
CPC分类号： B60C23/062 , B60C23/00 , B60C23/061
摘要： The invention is a method and apparatus wherein a disturbance acting on a tired wheel of a vehicle is estimated by a disturbance observer on the basis of the detected angular velocity of the wheel. In one form of the method, the wheel angular velocity is compensated for the disturbance, depending upon the amount of change of the wheel angular velocity caused by the disturbance. In another form of the method, the angular acceleration of the wheel as well as the disturbance is estimated by the observer, and the moment of inertia of the wheel is obtained according to a relationship between the estimated disturbance and angular acceleration of the wheel.
摘要翻译：本发明是一种方法和装置，其中基于检测到的车轮的角速度，由干扰观测器估计作用在车辆的轮胎上的扰动。在该方法的一种形式中，根据由扰动引起的车轮角速度的变化量，对于干扰来补偿车轮角速度。在该方法的另一种形式中，由观察者估计车轮的角加速度和扰动，并且根据轮的推定的扰动和角加速度之间的关系来获得车轮的转动惯量。

2. 发明授权

US6142026A Wheel information estimating apparatus 失效
标题翻译：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。

3. 发明授权

US5826207A Device for estimating air pressure of tire from vibration components of vehicle wheel speed 失效
标题翻译：用于估计车轮速度的振动分量的轮胎气压的装置
公开(公告)号：US5826207A
公开(公告)日：1998-10-20
申请号：US575250
申请日：1995-12-20
申请人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Katsuhiro Asano , Takaji Umeno , Toshiharu Naito , Nobuyoshi Onogi , Yuuichi Inoue
发明人： Hideki Ohashi , Hiroyuki Kawai , Hiroyoshi Kojima , Katsuhiro Asano , Takaji Umeno , Toshiharu Naito , Nobuyoshi Onogi , Yuuichi Inoue
IPC分类号： G01L17/00 , B60C23/00 , B60C23/06
CPC分类号： B60C23/062 , B60C23/061
摘要： In a tire air pressure estimation based upon vibration components extractedrom a vehicle wheel speed signal, when the vehicle is a driven vehicle wheel, the precision of estimation is improved by canceling the components of vibration due to the resonance of the drive system from the vibration components based upon which the estimation calculation is made. The vibration components due to the resonance of the drive system can be canceled by canceling those vibration components extracted from the vehicle wheel speed signal which are the same in the phase between left and right driven vehicle wheels. When the tire air pressure of one of a pair of left and right driven vehicle wheels is lower than that of the other, the lower tire air pressure is more correctly estimated. Therefore, the higher tire air pressure may be estimated according to the lower tire air pressure against the drive system resonance.
摘要翻译：在基于从车轮速度信号提取的振动分量的轮胎空气压力估计中，当车辆是从动车轮时，通过消除由于驱动系统的振动引起的振动的振动的分量，从而提高了估计的精度基于此进行估计计算的部件。可以通过取消从车轮速度信号中提取的在左右驱动车轮之间的相位相同的振动分量来抵消由驱动系统的共振引起的振动成分。一对左右的从动车轮中的一方的轮胎空气压力低于另一方的轮胎空气压力时，能够更正确地估计较低的轮胎空气压力。因此，可以根据相对于驱动系统谐振的较低的轮胎空气压力来估计较高的轮胎空气压力。

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

US06879938B2 Tire burst prediction device 失效
标题翻译：轮胎爆破预测装置
公开(公告)号：US06879938B2
公开(公告)日：2005-04-12
申请号：US10380108
申请日：2001-10-12
申请人： Katsuhiro Asano , Eiichi Ono , Takaji Umeno , Hideki Ohashi , {umlaut over (K)}azuhiro Kamiya , Yukio Mori , Toshiharu Naito
发明人： Katsuhiro Asano , Eiichi Ono , Takaji Umeno , Hideki Ohashi , {umlaut over (K)}azuhiro Kamiya , Yukio Mori , Toshiharu Naito
IPC分类号： B60C23/00 , B60C23/06 , G06F19/00
CPC分类号： B60C23/061 , B60C23/062
摘要： A tire burst predicting device which can predict occurrence of bursting of a tire and gives an alarm properly is provided. A break point frequency is estimated on the basis of time series data of wheel speed detected at a wheel speed sensor from frequency response of a first order model to which a transmission characteristic from a road surface disturbance to a wheel speed is approximated. A braking force gradient corresponding to the estimated break point frequency is estimated, on the basis of a map, which is prestored, representing a relationship between break point frequencies and braking force gradients. Extra high frequency components are eliminated from the estimated braking force gradient by a low pass filter to reduce estimation dispersion. Differentiators detect changing speed of the braking force gradient. An alarm is given when there is a possibility of bursting of tire when the detected changing speed reaches or exceeds a predetermined threshold value.
摘要翻译：提供一种可以预测轮胎爆裂发生并发生报警的轮胎爆破预测装置。基于从车轮速度传感器检测到的车轮速度的时间序列数据，根据从路面干扰到车轮速度的传输特性近似的第一阶模型的频率响应来估计断点频率。基于预先存储的表示断点频率和制动力梯度之间的关系的映射来估计对应于估计的断点频率的制动力梯度。通过低通滤波器从估计的制动力梯度中消除超高频分量，以减少估计分散。微分器检测制动力梯度的变化速度。当检测到的变化速度达到或超过预定阈值时，当存在轮胎爆裂的可能性时，发出报警。

6. 发明授权

US06591670B1 Device for detecting wheel speed signal frequency 失效
标题翻译：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。

7. 发明授权

US06522968B1 Device for estimating road friction state 失效
标题翻译：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。

8. 发明授权

US06182001B2 Braking estimation device, anti-lock brake controller, and braking pressure controller 失效
标题翻译：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。

9. 发明授权

US06324461B1 Road surface condition estimating apparatus and variation reduction processing apparatus 失效
标题翻译：路面状态估计装置和变形减少处理装置
公开(公告)号：US06324461B1
公开(公告)日：2001-11-27
申请号：US09106342
申请日：1998-06-29
申请人： Hiroyuki Yamaguchi , Katsuhiro Asano , Eiichi Ono , Takaji Umeno , Masaru Sugai
发明人： Hiroyuki Yamaguchi , Katsuhiro Asano , Eiichi Ono , Takaji Umeno , Masaru Sugai
IPC分类号： B60T800
CPC分类号： B60T8/172 , B60T2210/12
摘要： Disclosed is a road surface condition estimating apparatus including: a converting portion having a table showing a relation among a vehicle speed, a braking force and a resonance gain for each road surface condition and converting a detected value of the input vehicle speed and braking force into a resonance gain on the basis of the table, a subtracting device for computing each of differences between the resonance gain for each road surface condition converted by each of the converting portions and the detected value of the input resonance gain, and a minimum value selecting portion selecting the minimum value among the computed values in the subtracting device and outputting an information of the road surface condition corresponding to the converting portion giving the minimum value.
摘要翻译：公开了一种路面状态估计装置，包括：转换部，具有表示车辆速度，制动力和各路面状况的共振增益之间的关系的表，并将输入车速和制动力的检测值转换为基于该表的共振增益，用于计算由每个转换部分转换的每个路面条件的共振增益与输入谐振增益的检测值之间的每个差异的减法装置，以及最小值选择部分选择减法装置中的计算值中的最小值，并输出与给出最小值的转换部分相对应的路面条件的信息。

10. 发明授权

US06264292B1 Wheel condition estimating apparatus 失效
标题翻译：轮条件估计装置
公开(公告)号：US06264292B1
公开(公告)日：2001-07-24
申请号：US09118016
申请日：1998-07-17
申请人： Takaji Umeno , Katsuhiro Asano , Eiichi Ono , Hiroyuki Yamaguchi , Masaru Sugai
发明人： Takaji Umeno , Katsuhiro Asano , Eiichi Ono , Hiroyuki Yamaguchi , Masaru Sugai
IPC分类号： B60T832
CPC分类号： B60T8/172 , B60T2210/12
摘要： In a wheel condition estimating apparatus for estimating a wheel condition in a wheel resonance system including a frictional characteristic between a tire and a road surface, a transfer characteristic of the wheel resonance system from the vibration input to the output response is expressed by a transfer function including, as an unknown component of a wheel condition, a physical quantity relating to ease of a slipping between the tire and the road surface, an output response with respect to the vibration input to the wheel resonance system is detected and the unknown component which substantially satisfies the detected output response is estimated on the basis of the transfer function.
摘要翻译：在包括轮胎和路面之间的摩擦特性的车轮共振系统中估计车轮状态的车轮状态估计装置中，从振动输入到输出响应的车轮共振系统的传递特性由传递函数作为车轮状态的未知分量，涉及与轮胎和路面之间的滑动容易性相关的物理量，检测输入到车轮共振系统的振动的输出响应，并且将未知分量基本上基于传递函数估计满足检测到的输出响应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式