Predictive suspension control system by inclinometer and accelerometer

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Jarut Kunanoppadol


This paper presents a conceptual idea of a predictive suspension control system using two simple sensors, which are a bi-axial inclinometer and a bi-axial accelerometer, for measuring four input signals. The inclinometer is for measuring road parameters that consist of a slope angle and an incline angle, while the accelerometer is for measuring dynamic parameters that consist of an accelerating G-force and a turning G-force. A suspension control unit (SCU) is for calculating the four output signals using the concept of vehicle weight distribution. The percentage of the vehicle weight distributed to each wheel are the output signals for controlling the adjustable suspension parts, such as spring and shock absorber on each wheel independently. This article relates to the fi rst phase of developing a conceptual idea. However, the prototyping and experimental phases will be conducted in the next phase.

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