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    • 11. 发明授权
    • Process and system for detecting decrease in tire air-pressure and tire deflation judging program
    • 用于检测轮胎气压和轮胎放气判断程序减少的过程和系统
    • US07305318B2
    • 2007-12-04
    • US11481106
    • 2006-07-06
    • Masashi Kitano
    • Masashi Kitano
    • G06F19/00
    • B60C23/061
    • 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.
    • 通过包括以下步骤的判断来判断是否发生轮胎空气压力的下降:检测轮胎的车轮旋转速度的信息; 基于检测到的轮转速度信息的相对比较,求出轮胎气压降低判定值; 将判断值存储到平均准备缓冲器BF中; 获取当车辆停止时存储在平均准备缓冲器BF中的判定值的平均值; 将平均值和判断值的数量写入非易失性存储器2e; 将写入非易失性存储器2e的平均值扩展到平均准备缓冲器BF中,该平均准备缓冲器BF对应于车辆开始驱动之后的判断值的数量; 并计算存储在平均准备缓冲器BF中的规定数量的判断值的平均值,以便将平均值与阈值进行比较。
    • 12. 发明申请
    • Judging method of load distribution
    • 负荷分布判断方法
    • US20060064238A1
    • 2006-03-23
    • US11210799
    • 2005-08-25
    • Masashi Kitano
    • Masashi Kitano
    • G06F19/00
    • B60C23/061
    • It is the purpose of the present invention to provide a method of judging the load distribution of a vehicle without providing a specific load sensor on a vehicle. The method for judging the load distribution of a vehicle of the present invention 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. The calculation value of the rotational speeds of wheels in the predetermined two combinations of wheels can be the average of the rotational speeds of front wheels and the average of the rotational speeds of rear wheels, the average of the rotational speeds of 2 left wheels and the average of the rotational speeds of 2 right wheels, the rotational speeds of the front wheel and the rear wheel of 2 left wheels of the vehicle, the rotational speeds of the front wheel and the rear wheel of 2 right wheels, the rotational speed of the left wheel and the rotational speed of the right wheel of the front 2 wheels, or the rotational speed of the left wheel and the rotational speed of the right wheel of the rear 2 wheels.
    • 本发明的目的是提供一种在车辆上不设置特定负载传感器来判断车辆的负载分布的方法。 本发明的车辆的负荷分布判定方法的特征在于,通过比较通过比较转速的计算值的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 在轮的预定的两个组合中的轮子,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中的车轮的转速的计算值。 轮的预定的两个组合的车轮的转速的计算值可以是前轮的转速和后轮的转速的平均值,2个左轮的转速的平均值 2个右轮的转速的平均值,车辆的2个左轮的前轮和后轮的转速,2个右轮的前轮和后轮的转速,转速 左轮和前轮的右轮的转速,左轮的转速和后2轮的右轮的转速。
    • 15. 发明授权
    • Method for detecting decompression of tires and device thereof, and program for judging decompression of tires
    • 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
    • US07831346B2
    • 2010-11-09
    • US12155720
    • 2008-06-09
    • Masashi Kitano
    • Masashi Kitano
    • G01M17/00G06F7/00G06F19/00
    • B60C23/061Y10T137/3584Y10T137/36
    • 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.
    • 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。
    • 16. 发明授权
    • Detecting tire decompression based on wheel speed
    • 基于车轮速度检测轮胎减压
    • US07551992B2
    • 2009-06-23
    • US10977440
    • 2004-11-01
    • Masashi Kitano
    • Masashi Kitano
    • G01M17/00G06F7/00G06F19/00
    • B60C23/061Y10T137/3584Y10T137/36
    • 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.
    • 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。
    • 17. 发明申请
    • METHOD FOR ALARMING DECREASE IN TIRE AIR-PRESSURE
    • 用于报告轮胎空气压力降低的方法
    • US20090128316A1
    • 2009-05-21
    • US12300749
    • 2007-05-30
    • Masashi Kitano
    • Masashi Kitano
    • B60C23/02
    • B60C23/061
    • 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.
    • 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部压力的降低的方法 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。
    • 18. 发明申请
    • Method for detecting decompression of tires and device thereof, and program for judging decompression of tires
    • 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
    • US20050156721A1
    • 2005-07-21
    • US11020303
    • 2004-12-27
    • Masashi Kitano
    • Masashi Kitano
    • G01L17/00B60C23/02B60C23/06B60C23/00
    • B60C23/061
    • 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.
    • 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。