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1. 发明授权

US08738308B2 Method, apparatus, and program for detecting decrease in tire air pressure 有权
标题翻译：用于检测轮胎空气压力下降的方法，装置和程序
公开(公告)号：US08738308B2
公开(公告)日：2014-05-27
申请号：US13213178
申请日：2011-08-19
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G06F19/00
CPC分类号： B60C23/061
摘要： A method of detecting a decrease in tire air pressure includes calculating tire rotation information obtained from the wheel tires; computing a first determination value showing a difference between the sums of the wheel rotation information of pairs of wheel tires on two diagonal lines and a second determination value showing a difference between the sum of the wheel rotation information of right wheel tires and the sum of the wheel rotation information of left wheel tires; assuming the computed first and second determination values as points on orthogonal coordinates; determining position of tire(s) having a decreased pressure based on the argument of the points on the polar coordinates; and comparing the moving radii of the points on the polar coordinates with a predetermined threshold value to thereby determine a decrease in tire air pressure.
摘要翻译：检测轮胎气压降低的方法包括计算从轮胎轮胎获得的轮胎转动信息; 计算表示两条对角线上的车轮轮胎对的车轮旋转信息的和之间的差的第一判定值，以及表示右轮胎的车轮旋转信息的和之和之差之间的差的第二判定值左轮轮胎轮转信息; 假设所计算的第一和第二确定值作为正交坐标上的点; 基于极坐标上的点的参数来确定具有减小的压力的轮胎的位置; 并且将极坐标上的点的移动半径与预定阈值进行比较，从而确定轮胎空气压力的降低。

2. 发明授权

US06917864B2 Method and apparatus for detecting decrease in tire air-pressure, and program for judging decompression of tire 有权
标题翻译：用于检测轮胎空气压力下降的方法和装置，以及用于判断轮胎减压的程序
公开(公告)号：US06917864B2
公开(公告)日：2005-07-12
申请号：US10426620
申请日：2003-05-01
申请人： Yuji Oshiro , Masashi Kitano
发明人： Yuji Oshiro , Masashi Kitano
IPC分类号： G01L17/00 , B60C23/06 , G06F7/00
CPC分类号： B60C23/061
摘要： A method for detecting decrease in tire air-pressure in which decrease in internal pressure of a tire is detected on the basis of rotational information obtained from tires attached to a vehicle. The method includes the steps of: detecting rotational information of the respective tires; storing the rotational information of the respective tires; obtaining a slip rate between the tires and a road surface during running; comparing the slip rate with a slip rate which has been preliminarily obtained when at normal internal pressure; and judging simultaneous decompression of two wheel tires of both front wheels or simultaneous decompression of two wheel tires of both rear wheels on the basis of a relationship between a value obtained through comparison of the two slip rates and a specified threshold. It is possible to judge simultaneous decompression of two wheel tires of both front wheels or wheel two tires of both rear wheels.
摘要翻译：根据从车辆附带的轮胎得到的旋转信息，检测轮胎内压降低的轮胎气压的下降的方法。该方法包括以下步骤：检测各轮胎的旋转信息; 存储各轮胎的旋转信息; 在行驶期间获得轮胎与路面之间的滑移率; 将滑移率与在正常内压下预先获得的滑移率进行比较; 基于通过比较两个滑移率获得的值与规定的阈值之间的关系，判断两个前轮的两个轮胎的同时减压或两个后轮的两个轮胎的同时减压。可以判断两个后轮的前轮或车轮两个轮胎的两轮轮胎的同时减压。

3. 发明授权

US08726724B2 System, method, and program for detecting deflated tires 有权
标题翻译：用于检测放气轮胎的系统，方法和程序
公开(公告)号：US08726724B2
公开(公告)日：2014-05-20
申请号：US13483695
申请日：2012-05-30
申请人： Yuji Oshiro , Seigou Sakagami , Masashi Kitano , Hiroaki Kawasaki , Tomonori Sakai , Shinya Notomi , Kazunari Okada
发明人： Yuji Oshiro , Seigou Sakagami , Masashi Kitano , Hiroaki Kawasaki , Tomonori Sakai , Shinya Notomi , Kazunari Okada
IPC分类号： G01M17/02 , G08B21/00 , G06F19/00
CPC分类号： B60C23/062 , B60C23/061
摘要： A system detects deflated tires based on a resonance frequency of tires with a vehicle and a relative comparison value of rotation speeds of the tires. The system includes: a rotation information detection means for detecting rotation information of the tires; a rotation speed calculation means for calculating rotation speeds of the tires; a resonance frequency assumption means for assuming a resonance frequency of the tires; and a determination means for detection of deflated tires using a decreased pressure determination index calculated by a relative comparison of the rotation speeds of the tires and the resonance frequency. The determination means is so configured as to reduce the second threshold to be compared with the decreased pressure determination index to a value equal to or higher than 1% and equal to or lower than 90% and to detect deflated tires when the decreased pressure determination index exceeds the reduced threshold.
摘要翻译：系统基于轮胎与车辆的共振频率和轮胎的转速的相对比较值来检测放气轮胎。该系统包括：用于检测轮胎的旋转信息的旋转信息检测装置; 用于计算轮胎的转速的转速计算装置; 用于假设轮胎的共振频率的共振频率假设装置; 以及确定装置，用于使用通过轮胎的转速和共振频率的相对比较计算的减小的压力确定指标来检测放气轮胎。确定装置被配置为将要与减小的压力确定指数进行比较的第二阈值减小到等于或高于1％且等于或低于90％的值，并且当减小的压力确定指数超过降低阈值。

4. 发明授权

US07209856B2 Method for detecting decompression of tires and device thereof, and program for judging decompression of tires 有权
标题翻译：用于检测轮胎减压的方法及其装置，以及用于判断轮胎减压的程序
公开(公告)号：US07209856B2
公开(公告)日：2007-04-24
申请号：US11020303
申请日：2004-12-27
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G06F15/00 , G01P3/00
CPC分类号： B60C23/061
摘要： A detection method of reducing the air pressure of tires based on the rotational speed of wheels mounted on a vehicle. The method includes steps of: detecting the rotational speed of each of the wheels; storing the rotational speed of wheels; determining a judgment value of decompression of tires based on the relative comparison of the rotational speed; storing the judgment value in a non-volatile memory; determining an average value obtained by a moving average of a certain number of the judgment value; and judging decompression of tires by comparing the average value with a threshold. Decompression of tires can be detected even if the traveling of a vehicle is repeated for a short time and the chance of judging the reduced pressure of tires is magnified to be able to enhance the safety of vehicle traveling.
摘要翻译：基于安装在车辆上的车轮的转速来减小轮胎的空气压力的检测方法。该方法包括以下步骤：检测每个车轮的转速; 存储车轮的转速; 基于所述转速的相对比较来确定轮胎的减压判定值; 将所述判断值存储在非易失性存储器中; 确定通过一定数量的判断值的移动平均值获得的平均值; 并通过将平均值与阈值进行比较来判断轮胎的减压。即使在短时间内重复车辆的行驶，也可以检测到轮胎的减压，并且放大了判断轮胎减压的机会，能够提高车辆行驶的安全性。

5. 发明授权

US06501373B2 Apparatus and method for alarming decrease in tire air-pressure 有权
标题翻译：用于报警轮胎空气压力降低的装置和方法
公开(公告)号：US06501373B2
公开(公告)日：2002-12-31
申请号：US09984907
申请日：2001-10-31
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： B60C2300
CPC分类号： B60C23/061
摘要： An apparatus for alarming decrease in tire air-pressure comprising: a rotational information detecting means for detecting rotational information of the respective tires; a rotational information memory means; a judged value calculating means for calculating judged values based on the rotational information; a judged value memory means; a transition calculating means for calculating transition of the judged values based on the stored judged values; a judging means for determining a decrease in tire air-pressure; and an alarming means for issuing preliminary alarm prior to issuing a predetermined alarm for informing decrease in internal pressure in case the judged value tends to move to exceed a predetermined threshold. It is possible to appropriately inform the driver of the vehicle of a decompressed condition of a tire for making the driver drive safely.
摘要翻译：一种用于报警轮胎气压降低的装置，包括：旋转信息检测装置，用于检测各轮胎的旋转信息; 旋转信息存储装置; 判断值计算装置，用于基于旋转信息计算判断值; 判断值记忆装置; 转移计算装置，用于基于所存储的判断值计算所述判断值的转变; 用于确定轮胎空气压力降低的判断装置; 以及报警装置，用于在判定值倾向于移动超过预定阈值的情况下发出用于通知内部压力降低的预定报警之前发出预警报警。可以将轮胎的减压状态适当地通知车辆驾驶员，以使驾驶员驾驶安全。

6. 发明授权

US08019530B2 Judging method of load distribution 有权
标题翻译：负荷分布判断方法
公开(公告)号：US08019530B2
公开(公告)日：2011-09-13
申请号：US11210799
申请日：2005-08-25
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G06F19/00
CPC分类号： B60C23/061
摘要： A method of judging the load distribution of a vehicle without providing a specific load sensor on a vehicle is characterized in that the load distribution by the every wheel of a vehicle or the load distribution by every axle is judged by comparing the result of comparing the calculation value of the rotational speeds of wheels in the predetermined two combinations of wheels with the result of comparing the calculation value of the rotational speeds of wheels in the fore-mentioned predetermined two combinations of wheels at a predetermined load when the vehicle is under brakeage.
摘要翻译：在车辆上不设置特定负载传感器的情况下判断车辆的负荷分布的方法的特征在于，通过比较计算结果来判断车辆的每个车轮的负荷分布或每个车轴的负荷分布在车轮的预定的两个组合中的轮的转速的值，其结果是当车辆处于制动下时以预定的负载比较前述预定的两个组合的车轮的转速的计算值。

7. 发明申请

US20080255719A1 Method for detecting decompression of tires and device thereof, and program for judging decompression of tires 有权
标题翻译：用于检测轮胎减压的方法及其装置，以及用于判断轮胎减压的程序
公开(公告)号：US20080255719A1
公开(公告)日：2008-10-16
申请号：US12155720
申请日：2008-06-09
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G01M17/02
CPC分类号： B60C23/061 , Y10T137/3584 , Y10T137/36
摘要： A method for detecting decompression of tires based on the rotational speed of wheels mounted on a vehicle, comprising the steps of: detecting the rotational speed of each of the above-mentioned wheels, determining the speed against ground of the vehicle, calculating the speed information of a fixed wheel from the rotational speeds of said wheels, calculating the judgment value of the wheel position by comparing the speed information of the wheels with the speed against ground of the vehicle, comparing the judgment value of the wheel position with the basis value of the wheel position obtained by preliminarily comparing the speed against ground of the vehicle with the speed information of the wheels at prescribed inner pressure, and judging decompression of tires based on relation between the comparison value of the basis value with the judgment value and a fixed threshold. A region of judging decompression of tires can be broadened and the accuracy of reduced pressure judgment can be improved.
摘要翻译：一种用于根据安装在车辆上的车轮的转速来检测轮胎的减压的方法，包括以下步骤：检测每个上述车轮的转速，确定车辆对地的速度，计算速度信息通过将车轮的速度信息与车辆的速度进行比较来计算车轮位置的判断值，将车轮位置的判断值与车轮位置的判断值进行比较，通过预先将车辆的地面速度与规定的内部压力下的车轮的速度信息进行预先比较而获得的车轮位置，并且基于基准值的比较值与判定值与固定阈值之间的关系来判断轮胎的减压。可以扩大判断轮胎减压的区域，可以提高减压判定的精度。

8. 发明申请

US20070010964A1 Process and system for detecting decrease in tire air-pressure and tire deflation judging program 失效
公开(公告)号：US20070010964A1
公开(公告)日：2007-01-11
申请号：US11481106
申请日：2006-07-06
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G01P3/00 , G06F15/00
CPC分类号： B60C23/061
摘要： A judgment whether a decrease in tire air-pressure occurs or not is performed by a process comprising the steps of: detecting information on wheel rotational velocities of tires; obtaining a judgment value for decrease in tire air-pressure based on relative comparison between the detected information on wheel rotational velocities; storing the judgment value(s) into an average preparation buffer BF; obtaining an average value of the judgment value(s) stored in the average preparation buffer BF when the vehicle stops; writing the average value and the number of the judgment values into a nonvolatile memory 2e; expanding the average value written in the nonvolatile memory 2e into the average preparation buffer BF in duplicate corresponding to the number of the judgment values after the start of a drive of the vehicle; and calculating an average value of a prescribed number of judgment values stored in the average preparation buffer BF so as to compare the average value with a threshold value.

9. 发明申请

US20050113992A1 Method for detecting decompression of tires and device thereof, and program for judging decompression of tires 有权
标题翻译：用于检测轮胎减压的方法及其装置，以及用于判断轮胎减压的程序
公开(公告)号：US20050113992A1
公开(公告)日：2005-05-26
申请号：US10977440
申请日：2004-11-01
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G01L17/00 , B60C23/02 , B60C23/04 , B60C23/06 , G06F7/00
CPC分类号： B60C23/061 , Y10T137/3584 , Y10T137/36
摘要： A method for detecting decompression of tires based on the rotational speed of wheels mounted on a vehicle, comprising the steps of: detecting the rotational speed of each of the above-mentioned wheels, determining the speed against ground of the vehicle, calculating the speed information of a fixed wheel from the rotational speeds of said wheels, calculating the judgment value of the wheel position by comparing the speed information of the wheels with the speed against ground of the vehicle, comparing the judgment value of the wheel position with the basis value of the wheel position obtained by preliminarily comparing the speed against ground of the vehicle with the speed information of the wheels at prescribed inner pressure, and judging decompression of tires based on relation between the comparison value of the basis value with the judgment value and a fixed threshold. A region of judging decompression of tires can be broadened and the accuracy of reduced pressure judgment can be improved.
摘要翻译：一种用于根据安装在车辆上的车轮的转速来检测轮胎的减压的方法，包括以下步骤：检测每个上述车轮的转速，确定车辆对地的速度，计算速度信息通过将车轮的速度信息与车辆的速度进行比较来计算车轮位置的判断值，将车轮位置的判断值与车轮位置的判断值进行比较，通过预先将车辆的地面速度与规定的内部压力下的车轮的速度信息进行预先比较而获得的车轮位置，并且基于基准值的比较值与判定值与固定阈值之间的关系来判断轮胎的减压。可以扩大判断轮胎减压的区域，可以提高减压判定的精度。

10. 发明授权

US08040229B2 Method for alarming decrease in tire air-pressure using wheel speed, vehicle acceleration and wheel slip ratio 有权
标题翻译：使用车轮速度，车辆加速度和车轮滑移率报警轮胎气压降低的方法
公开(公告)号：US08040229B2
公开(公告)日：2011-10-18
申请号：US12300749
申请日：2007-05-30
申请人： Masashi Kitano
发明人： Masashi Kitano
IPC分类号： G08B21/00
CPC分类号： B60C23/061
摘要： An object is to provide a method capable of reducing calculation number of times for obtaining a primary regression line of a slip ratio and acceleration, and detecting a decrease in internal pressure of tires with high accuracy even in the case where is no evenness in a road surface.The present invention is a method for alarming decrease in tire air-pressure including the steps of: detecting rotational information obtained from tires installed in a vehicle; respectively calculating a wheel velocity, a vehicle acceleration and a slip ratio of the front wheel and a slip ratio of the rear wheel from the rotational information of the respective tires; accumulating the vehicle acceleration and the slip ratio of the front wheel and the slip ratio of the rear wheel; obtaining a primary regression coefficient of the vehicle acceleration and the slip ratio of the front wheel and the slip ratio of the rear wheel; and judging whether or not the tires are decreased in the air pressure upon comparing the primary regression coefficient and a reference value of the primary regression coefficient preliminarily calculated in the above step when air pressure in the tires is the reference internal pressure.
摘要翻译：本发明的目的是提供一种能够减少获得滑移率和加速度的一次回归线的计算次数的方法，即使在道路不均匀的情况下也能够高精度地检测轮胎的内压降低的方法表面。本发明是一种用于报警轮胎气压降低的方法，包括以下步骤：检测从安装在车辆中的轮胎获得的旋转信息; 分别根据各轮胎的旋转信息计算前轮的车轮速度，车辆加速度和滑移率以及后轮的滑移率; 累积前轮的车辆加速度和滑移率以及后轮的滑移率; 获得前轮的车辆加速度和滑移比的一次回归系数和后轮的滑移率; 以及当所述轮胎中的空气压力是所述基准内部压力时，通过比较所述初级回归系数和在上述步骤中预先计算出的初级回归系数的基准值来判断轮胎是否在空气压力中降低。

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