公开(公告)号：US5982279A

公开(公告)日：1999-11-09

申请号：US939048

申请日：1997-09-26

申请人： Motonori Tominaga ,  Yuuichi Inoue ,  Kenji Tomiita ,  Shinjiro Fukada ,  Yoshihiro Nishikawa ,  Takaji Umeno ,  Hideki Ohashi

发明人： Motonori Tominaga ,  Yuuichi Inoue ,  Kenji Tomiita ,  Shinjiro Fukada ,  Yoshihiro Nishikawa ,  Takaji Umeno ,  Hideki Ohashi

IPC分类号： B60C23/06 ,  B60C23/00

CPC分类号： B60C23/062 ,  B60C23/061

摘要： To accurately detect a resonance frequency of tire even in high speed range by which tire air pressure state of each wheel is known, a calculation processing unit to which detection signals of wheel speed and resonance frequencies of tire are inputted calculates a timewise change amount of a wheel speed deviation that is a difference between wheel speed ratios of front and rear wheels. Then, it makes corrections to remove the influence of timewise change amounts of resonance frequencies of front wheels from timewise change amounts of wheel speed deviations based on a relationship between the resonance frequency and the wheel speed deviation when air pressure of the tire is changed. The unit then converts the corrected timewise change amount of the rotational state into the timewise change amount of the resonance frequencies of the rear wheels based on the above-described relationship and the resonance frequencies of the rear wheels and the timewise change amounts of the resonance frequencies of the rear wheels which have been accurately detected before the vehicle speed exceeds an upper limit value.

摘要翻译： 为了准确地检测轮胎的共振频率，即使在已知轮胎气压状态的高速范围内，输入轮胎速度检测信号和轮胎的共振频率的计算处理单元，也可以计算出轮胎的时间变化量 车轮速度偏差是前轮和后轮的车轮速比之差。 然后，根据轮胎的气压变化时的谐振频率和车轮偏差之间的关系，根据轮速偏差的时间变化量，进行修正，以消除前轮的谐振频率的时间变化量的影响。 基于上述关系和后轮的共振频率和谐振频率的时间变化量，该单元然后将校正的旋转状态的时间变化量转换成后轮的谐振频率的时间变化量 在车速超过上限值之前已经被准确地检测到的后轮。

公开(公告)号：US5541859A

公开(公告)日：1996-07-30

申请号：US215763

申请日：1994-03-22

申请人： Yuuichi Inoue ,  Shusaku Fujimoto ,  Kenji Tomiita ,  Nobuyoshi Onogi

发明人： Yuuichi Inoue ,  Shusaku Fujimoto ,  Kenji Tomiita ,  Nobuyoshi Onogi

IPC分类号： B60C23/06 ,  B60T8/172 ,  G01P3/481 ,  G01P11/00

CPC分类号： B60C23/062 ,  B60C23/061 ,  B60T8/172 ,  G01P3/481 ,  G01P3/489 ,  B60T2210/14

摘要： In a speed detecting apparatus for a rotating body, a correction coefficient is used to correct a detecting error in each of pulse signal periods representing speed data of the rotating body. The correction coefficient is updated so as to cancel an aberration of the corresponding pulse signal period caused by a nonstandard factor of the rotating body. Specifically, an average value of the pulse signal periods corresponding to one rotation of the rotating body is first derived, then a value indicative of a deviation between corresponding one of the pulse signal periods and the average value is derived, and further, an updating value is derived by adjusting a degree of influence of the deviation indicative value to the correction coefficient using a correction sensitivity coefficient. The correction coefficient is updated by adding the updating value to a last value of the correction coefficient.

摘要翻译： 在用于旋转体的速度检测装置中，使用校正系数来校正表示旋转体的速度数据的每个脉冲信号周期中的检测误差。 校正系数被更新以消除由旋转体的非标准因子引起的对应的脉冲信号周期的像差。 具体地，首先导出与旋转体的一次旋转对应的脉冲信号周期的平均值，得出表示相应的一个脉冲信号周期与平均值之间的偏差的值，此外，更新值 通过使用校正灵敏度系数调整偏差指示值对校正系数的影响程度而导出。 通过将更新值添加到校正系数的最后值来更新校正系数。