公开(公告)号：US06759952B2

公开(公告)日：2004-07-06

申请号：US09900324

申请日：2001-07-06

Applicant: Barry Dunbridge ,  Kenneth L. Brown ,  George W. McIver ,  Kiran R. Magiawala ,  Kelley D. Chilcott

Inventor： Barry Dunbridge ,  Kenneth L. Brown ,  George W. McIver ,  Kiran R. Magiawala ,  Kelley D. Chilcott

IPC: B60C2300

CPC classification number: G01M17/04 ,  G01M17/02 ,  Y10T152/10009

Abstract: A tire and suspension monitoring and warning system consisting of a set of multi-function sensors that monitor and warn of a failure mode. The system monitors and warns for tire imbalance, tire tread wear, and shock absorbers for a tire attached to a vehicle. The monitoring and warning system includes one axial, radial, and lateral acceleration measurement of the wheel to provide acceleration signal sample power. For tire imbalance, signal sample power in the second harmonic of the tire rotational frequency is compared to that of the first harmonic. For tire tread wear, average signal sample power within a second frequency range is compared to a previously stored baseline value. For shock absorber performance, a sum of all frequency components in a second predetermined frequency range is compared to a baseline value.

Abstract translation: 一种轮胎和悬架监控和警告系统，由一组监控和警告故障模式的多功能传感器组成。 系统监测和警告轮胎不平衡，轮胎胎面磨损以及连接到车辆的轮胎的减震器。 监测和报警系统包括轮子的一个轴向，径向和横向加速度测量，以提供加速度信号采样功率。 对于轮胎不平衡，将轮胎转速的二次谐波中的信号采样功率与一次谐波的信号采样功率进行比较。 对于轮胎胎面磨损，将第二频率范围内的平均信号采样功率与先前存储的基准值进行比较。 对于减震器性能，将第二预定频率范围中的所有频率分量的总和与基线值进行比较。

公开(公告)号：US07443288B2

公开(公告)日：2008-10-28

申请号：US10854351

申请日：2004-05-26

Applicant: Barry Dunbridge ,  Kenneth L. Brown ,  George W. McIver ,  Kiran R. Magiawala ,  Kelley D. Chilcott

Inventor： Barry Dunbridge ,  Kenneth L. Brown ,  George W. McIver ,  Kiran R. Magiawala ,  Kelley D. Chilcott

IPC: B60C23/00

CPC classification number: G01M17/04 ,  G01M17/02 ,  Y10T152/10009

Abstract: A tire and suspension monitoring and warning system consisting of a set of multi-function sensors that monitor and warn of a failure mode. The system monitors and warns for tire imbalance, tire tread wear, and shock absorbers for a tire attached to a vehicle. The monitoring and warning system includes one axial, radial, and lateral acceleration measurement of the wheel to provide acceleration signal sample power. For tire imbalance, signal sample power in the second harmonic of the tire rotational frequency is compared to that of the first harmonic. For tire tread wear, average signal sample power within a second frequency range is compared to a previously stored baseline value. For shock absorber performance, a sum of all frequency components in a second predetermined frequency range is compared to a baseline value.

Abstract translation: 一种轮胎和悬架监控和警告系统，由一组监控和警告故障模式的多功能传感器组成。 系统监测和警告轮胎不平衡，轮胎胎面磨损以及连接到车辆的轮胎的减震器。 监测和报警系统包括轮子的一个轴向，径向和横向加速度测量，以提供加速度信号采样功率。 对于轮胎不平衡，轮胎转速的二次谐波中的信号采样功率与第一谐波的信号采样功率进行比较。 对于轮胎胎面磨损，将第二频率范围内的平均信号采样功率与先前存储的基准值进行比较。 对于减震器性能，将第二预定频率范围中的所有频率分量的总和与基线值进行比较。