Tire wear estimation system and method employing footprint length
A tire and imprinting technology, applied in tire measurement, tire parts, automobile tire testing, etc., can solve problems such as difficult to obtain data or information, imprecise data, and reduce the accuracy and/or reliability of tread wear prediction
Active Publication Date: 2021-03-05
THE GOODYEAR TIRE & RUBBER CO
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Problems solved by technology
These alternatives have certain disadvantages in the prior art due to lack of optimal prediction techniques which reduce the accuracy and / or reliability of tread wear prediction
For example, many such technologies include data or information that is not readily available, such as non-standard vehicle system signals, or data that is imprecise under all driving conditions
Method used
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Embodiment Construction
[0075] refer to Figures 1 to 6 , an exemplary embodiment of the tire wear state estimation system of the present invention is indicated at 10 . The tire wear state estimation system 10 and accompanying methods attempt to overcome the challenges posed by prior art methods of measuring tire wear state through direct sensor measurements. As such, the subject systems and methods are referred to herein as "indirect" wear sensing systems and methods that estimate wear state. The prior art direct approach of measuring tire wear by tire mounted sensors has several challenges as described above. The tire wear state estimation system 10 and accompanying method utilizes an indirect approach and avoids the problems associated with the use of tire wear sensors mounted directly to the tire tread.
[0076] special reference figure 1 , the system 10 estimates tread wear on each tire 12 supporting the vehicle 14 . Although vehicle 14 is depicted as a passenger vehicle, the invention is no...
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A tire wear state estimation system includes a tire that supports a vehicle. A sensor unit is mounted on the tire and includes a footprint centerline length measurement sensor, a pressure sensor, a temperature sensor, and electronic memory capacity for storing identification information for the tire. A processor is in electronic communication with the sensor unit and receives the measured centerline length, the measured pressure, the measured temperature and the identification information. A tire construction database stores tire construction data and is in electronic communication with the processor. The identification information is correlated to the tire construction data. An analysis module is stored on the processor and receives the measured centerline length, the measure pressure, the measured temperature, the identification information, and the tire construction data as inputs. The analysis module includes a prediction model that generates an estimated wear state for the tire from the inputs.
Description
technical field [0001] The present invention generally relates to tire monitoring systems. More specifically, the present invention relates to systems for predicting tire wear. In particular, the present invention relates to systems and methods for estimating the state of tire wear based on changes in the length of the tire's footprint. 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 tread of a tire, directly affects such vehicle factors. Therefore, it is desirable to monitor and / or measure the amount of tread wear experienced by a tire, which is indicative of the state of tire wear. It should be understood that for convenience, the terms "tread wear" and "tire wear" are used interchangeably. [0003] One way of monitoring and / or measuring tread wear is through the use of wear sensors disposed in the tire tread, which is known as a dire...
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IPC IPC(8): B60C11/24B60C23/04B60C23/20
CPCB60C11/246B60C23/04G01M17/02B60C23/20B60C2019/004G06N20/20G06N5/01B60C11/243B60C19/00
Inventor K·B·辛格M·A·阿拉特
Owner THE GOODYEAR TIRE & RUBBER CO