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Tire wear state estimation system

A wear state and tire technology, applied in the system of predicting tire wear and estimating tire wear state, can solve the problem of no real-time combination or evaluation

Pending Publication Date: 2022-03-01
THE GOODYEAR TIRE & RUBBER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current state of the art, there is no way to combine or evaluate the results of each individual technique in real time to achieve an optimized wear state estimation

Method used

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  • Tire wear state estimation system

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Experimental program
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Embodiment Construction

[0045] definition

[0046] "Axial" and "axially" refer to lines or directions parallel to the axis of rotation of the tire.

[0047] "CAN" is an acronym for Controller Area Network.

[0048] "Circumferential" means lines or directions extending along the circumference of the annular tread surface perpendicular to the axial direction.

[0049] "Equatorial Centerplane (CP)" means the plane perpendicular to the tire's axis of rotation and passing through the center of the tread.

[0050] "Footprint" means the contact footprint or area of ​​contact created by the tread of a tire with a flat surface as the tire rotates or rolls.

[0051] "GPS" is an acronym for Global Positioning System.

[0052] "Inside side" means the side of the tire that is closest to the vehicle when the tire is mounted on the wheel and the wheel is mounted on the vehicle.

[0053] "Transverse" means an axial direction.

[0054] "Net contact area" means the total area of ​​the ground-contacting tread elem...

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Abstract

A tire wear state estimation system. A tire wear state estimation system includes at least one tire supporting a vehicle. A sensor is mounted on the tire and measures tire parameters. At least one sensor is mounted on the vehicle and measures a vehicle parameter. Each of the plurality of sub-models receives a selected tire parameter from a tire-mounted sensor and a selected vehicle parameter from a vehicle-mounted sensor. Each of the sub-models generates a sub-model wear state estimate and determines a model reliability for each of the sub-models. The supervisory model receives a wear state estimate from each sub-model and a model reliability for each sub-model, and generates a combined wear state estimate for the tire.

Description

technical field [0001] The present invention generally relates to tire monitoring systems. More particularly, the present invention relates to systems for predicting tire wear. In particular, the present invention relates to a system for estimating the state of tire wear by employing sub-models and determining a composite wear state from the estimates generated by each sub-model. Background technique [0002] Tire wear plays an important role in vehicle factors such as safety, reliability and performance. Treadwear (which refers to the loss of material from the tire tread) directly affects such vehicle factors. Accordingly, it is desirable to monitor and / or measure the amount of tread wear experienced by a tire. For convenience, the term "tread wear" is used interchangeably with the term "tire wear" herein. [0003] One approach to monitoring and / or measuring tread wear is through the use of wear sensors disposed in the tire tread, which has been referred to as a direct ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/24
CPCB60C11/246B60C11/243B60C23/0408B60W40/12B60C2019/004B60W2050/0028G01M17/02
Inventor S·夏尔马K·B·辛格M·A·阿拉特P-J·德鲁恩
Owner THE GOODYEAR TIRE & RUBBER CO