Design and implement of a scooter slope ascent assist – Advanced future development

Abstract

Scooters are the most popular means of transportation of the women. Unfortunately, the women get several troubles when using the scooters. Especially, the scooters may over-throttle when the women push the scooters to get over the house slope. In order to reduce these accident amount, Slope Ascent Assistant (SAA) system will help users to get over the slope without over-throttle. All the things to be done are pressing the button. SAA device will twist and hold the throttle cable and immediately control the engine torque through the opening of the engine valve. We also implemented PID algorithm to adjust the speed of the scooter, measured by a wheel speed sensor, based on different slope. In order to adapt with different conditions such as the wear of the wheel, the vibration of engine, etc., it requires to use Fuzzy algorithm to tune a better PID parameter. For objective evaluation, unit test and integration test were conducted by using test bench and debug program whereby the SAA system integrated into a scooter has operated under certain conditions. The overall results indicate a significant improvement with respect to size, stability and reliability of the SAA system.