현가장치의 예견 제어를 위한 초음파 센서 모듈

Abstract

Lidars and stereo cameras are used as preview sensors for advanced suspension systems. However, there are circumstances where these sensors are not able to recognize the road surface well due to physical or algorithmic issues. Sensor modules with a high-performance processor and high-capacity memory are very expensive, making mass production very challenging. To overcome this challenge, this paper introduces ultrasonic sensors as a cost-efficient tool to build sensor modules. Aside from being cost-efficient, the ultrasonic sensor module has a relatively simple algorithm that makes it possible to retrieve road surface data with micro controller units. This paper also suggests methods to obtain real-time road surface information from the environment with high noise level. To test the suggested methods, simulations and road tests were performed.