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Road surface condition estimation apparatus and road surface condition estimation method using the same

A technology of road surface state and circumferential direction, applied in control devices, neural learning methods, transportation and packaging, etc., can solve problems such as inability to realize estimation, inability to provide road surface information, and vibration characteristics that do not include tire vibration characteristics, so as to increase stability Effect

Pending Publication Date: 2021-04-02
HANKOOK TIRE & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, this method cannot achieve accurate estimation because the road surface estimation algorithm does not include the vibration characteristics of the tire contact area and the vibration characteristics before and after contact.
Also, only asphalt roads and roads with a low friction coefficient are divided, and detailed road surface information cannot be provided to the electronic control unit (ECU)

Method used

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  • Road surface condition estimation apparatus and road surface condition estimation method using the same
  • Road surface condition estimation apparatus and road surface condition estimation method using the same
  • Road surface condition estimation apparatus and road surface condition estimation method using the same

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Embodiment Construction

[0067] Hereinafter, the present invention will be described with reference to the drawings. However, the present invention can be realized in various embodiments, and therefore, the present invention is not limited to the examples described in this specification. In addition, in order to clarify the present invention, parts irrelevant to the description are omitted from the drawings, and similar reference numerals are assigned to similar parts throughout the specification.

[0068] Throughout the specification, when it is indicated that a certain part is "connected (connected, contacted, combined)" with other parts, this not only means the case of "directly connected", but also includes the case of "indirectly connected" by setting other parts in the middle . In addition, when it is indicated that a certain part "includes" a certain structural element, unless there is a particular statement to the contrary, it means that other structural elements may be included, not excluded...

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Abstract

The present disclosure relates to a road surface condition estimation apparatus and a road surface condition estimation method using the same, and more particularly to a road surface condition estimation apparatus which accurately estimates a road surface condition even under changes of external environment such as weather, etc., and a road surface condition estimation method using the same. The road surface condition estimation apparatus includes: a sensor module which is mounted on a tire; a receiver module which receives sensing information measured by the sensor module; a processing modulewhich extracts a parameter for estimating a road surface condition by analyzing the sensing information received by the receiver module; and an estimation module which estimates the road surface condition by using the parameter extracted by the processing module. The sensing information includes an acceleration of the tire.

Description

technical field [0001] The present invention relates to a road surface state estimating device and a road surface state estimating method using the same. State estimation method. Background technique [0002] Tires are the only elements of vehicle components that directly contact the road surface, and they play a very important role in the driving performance and safety of the vehicle because they drive the vehicle by generating rotational force, driving force, and braking force of the vehicle. [0003] The driving force, braking force, and rotational force generated between the tire and the road surface are greatly affected by the characteristics of the tire and the type and state of the road surface. [0004] Therefore, as long as real-time road surface conditions can be estimated in the vehicle and information can be provided to the electronic control unit (ECU) of the vehicle, the performance of vehicle control such as anti-lock braking system (ABS) and advanced driver ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/06B60C23/04
CPCB60W40/06B60C23/0488B60W40/068B60W2422/70B60W2420/90B60W2050/0057B60W2050/0059B60W2050/002B60W2530/20B60W30/18172B60W50/14B60T8/172B60C2019/004B60T2210/12B60T2240/03B60C23/064B60C23/0433G06N3/08B60C23/0474G06N20/00B60W2552/00B60W30/02B60W40/10B60W2050/146B60W2520/00
Inventor 李浩宗金珉泰S·塔何瑞
Owner HANKOOK TIRE & TECH CO LTD
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