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。