Estimation Of The Driving Force And Drag Force Of The Powertrain System With The Use Of A Universal Portable Device In Road Test

摘要

This article describes a technique of determination of the driving force of the powertrain system with use of auniversal portable device - PAAF (Power Acceleration And Force). Its construction forms the final result of a project,which involved designing and building a portable microcomputer based device for a passenger car. This device islongitudinal acceleration measurement and on this basis it is possible to determine driving force of the powertrainsystem in one simple on-road test. The acceleration is measured with the use of accelerometer installed in the car body.The paper describes the mechanical design and embedded system details: acceleration sensor connection with CPUand main solutions of relations between CPU and human–machine interface devices. Besides, software functions andimplemented algorithms are presented. Additionally, the results of data acquired during on-road test and driving forceof the powertrain system are shown.