Single retractable power step for high ground clearance vehicles

This paper aims to highlight an innovation of an automatic power step system used mainly for high ground clearance vehicles such as 4x4s and SUVs. Though numerous power steps are available in the market, they are unsuitable for all vehicles. This research was intended to fill the gaps by introducing this innovation that may become a new choice for the user. The design concept features a single-arm mechanism with a short and slim running board, as suggested by its name. This design-based innovation focused on functionality that suits the user’s requirements and enhanced car accessibility. It was constructed using basic components through a cyclical feasibility study process, design and modelling, construction, fitting, and testing. The system has two major components: metal frames and electrical components. The step was designed to be attached to the main chassis of the vehicle beneath the floor and adjacent to the door. The step will be extended once the car door is opened and retracted back when the door is closed. The system also includes lighting and an alarm for the safety of the user and the system. The system has been tested and used by a few cars for its performance and feedback.