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

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 ...

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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)

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