Intermediate Development for Normal Force, Torque, and Rotational Speed Measurement With Bluetooth Connection For Vehicles

• Main Author: AUFAR SATRIA - NIM 13114126, ANDIKA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25501
• Institution: Institut Teknologi Bandung

<p align="justify">Apart from several studies on the onboard measurement system for ground vehicles, the automotive industry still needs a more practical and sophisticated measurement system. Previous research on measurement system, i.e. the on-board measurement system for motor cycle, can still be developed. The study captured parameters such as normal force, torque and rotational speed to determine the stability and performance studies of motorcycles. The measurement was still using a cable, which is sometimes not practical and very difficult to instal in ground vehicles. Inspired and motivated from the results of this study, this research is continued to try to develop a similar measurement system that works wirelessly or on-line. In this undergraduate final project, a measurement system was developed, and tested by a vehicle-like simulation rig that represents the state of ground vehicles in static or dynamic environment. <br /> <br /> In designing this measurement system, the author reviewed several transducer options, making the choice suitable for the desired application. The author also chose the right microprocessor, and the most efficient data acquisition method for sensor data retrieval. In this experiment, bluetooth is used as a method of transmission. <br /> <br /> The objective of this research is to further improve the measurement of normal force, torque and rotational speed of vehicle with online connection, which was not able to be done in previous researches. For completing the objective, this research needs a simulation to further analyze the method of data acquisition. <br /> <br /> In designing a measurement system, the authors review some transducer options, making them suitable for the desired application. The author also chooses the right microprocessor, and the most efficient data acquisition method for sensor data retrieval. <br /> <br /> The vehicle-like simulation rig is a wheel which is supported by a freely rotating axle, connected to a static bike to provide a torque as it simulates motor vehicles powered by a motor. At the radius of the wheel, insert a steel plate which has been integrated to the strain gauge to measure the normal force. In the shaft, a strain gauge is mounted on the shaft to recieve the resulting torque. As a measure of rotational speed, this study used the proximity sensor. All of the sensors that have been mentioned is integrated with the help of Arduino Nano microprocessor, in which the data will be received by the computer through a wireless link bluetooth connected to the Arduino. <br /> <br /> Both static and dynamic data retrieval results concluded that the measurement system is very efficient, easy and has the potential to be used as a wireless measurement system on motor vehicles. However, there are some weaknesses, the noise is significant enough to complicate the reading of data caused by some conditions. Simultaneous measurement cannot be done due to the same bluetooth address of all the bluetooth module that was used.<p align="justify"> <br />