Jane C Huang

US Patent:

6405109, Jun 11, 2002

Filed:

Jul 19, 2000

Appl. No.:

09/619734

Inventors:

Christos Kyrtsos - Southfield MI
Jane Huang - Troy MI

Assignee:

Meritor Heavy Vehicle Technology, LLC - Troy MI

International Classification:

G01M 1710

US Classification:

701 29, 701 37, 701 69

Abstract:

A method and system for determining axle misaligned and tire wear of a vehicle monitors lateral and vertical acceleration values. Lateral and vertical acceleration data for each axle is taken and this data is put into an equation. A ratio of the data for one axle divided by the data of another axle is calculated. If this ratio tends towards 1. 0 the axles are more in alignment with respect to each other and there is likely less tire wear. As the ratio tends away from 1. 0 the axles are more misaligned with respect to each other and there is likely more tire wear. The standard deviations of the vertical accelerations are also put into a ratio and can be used to predict how much wear the tires on one axle are experiencing as compared to the tires on the other axle. A gauge or monitoring device may be used to monitor the values to determine misalignment and predict tire wear. The monitoring device may send alignment and tire wear signals to a display, which indicates axle misalignment and tire wear of the vehicle.