US 11,815,426 B2
Robust tire/wheel vibration monitor system
Anushya Viraliur Ponnuswami, Markham (CA); Joseph K Moore, Whitby (CA); Halit Zengin, Courtice (CA); Eungkil Lee, Oshawa (CA); and Mansoor Alghooneh, Richmond Hill (CA)
Assigned to GM Global Technology Operations LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Oct. 16, 2020, as Appl. No. 17/072,486.
Prior Publication US 2022/0120638 A1, Apr. 21, 2022
Int. Cl. G01M 17/013 (2006.01); B60C 25/00 (2006.01); G07C 5/08 (2006.01); G01M 17/02 (2006.01)
CPC G01M 17/013 (2013.01) [B60C 25/007 (2013.01); G01M 17/025 (2013.01); G07C 5/0841 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vibration monitoring system comprising:
a plurality of encoders configured to generate a plurality of pulse train signals for a plurality of wheels, wherein each of the plurality of encoders is coupled to a respective one of the plurality of wheels and generates a single one of the plurality of pulse train signals; and
an analyzer coupled to the plurality of encoders and configured to
generate both a plurality of pulse per revolution signals and a plurality of angular velocity signals for the plurality of wheels in response to the plurality of pulse train signals, wherein each of the plurality of pulse per revolution signals conveys a single pulse per rotation of the respective wheel,
generate an input phasor array as an n×p array that organizes a plurality of input phasor quantities of the plurality of pulse per revolution signals caused by the plurality of wheels, wherein n represents a plurality of extracted points from each of the plurality of pulse per revolution signals, and p represents the plurality of wheels,
generate a response phasor array as an m×p array that organizes a plurality of response phasor quantities of the plurality of angular velocity signals caused by the plurality of wheels, wherein m represents a plurality of extracted points from the plurality of angular velocity signals, and
generate a report that identifies at least one vibrating wheel of the plurality of wheels in response to the input phasor array and the response phasor array.