Development of a Vehicle Fuel Economy and Driving Performance Model for Simulation on a Microcomputer 912529

Usually, vehicle fuel economy and driving performance mostly are determined by field test or on proving grounds. This paper presents a method to develop a model for the simulation of vehicle fuel economy and driving performance on microcomputer. The model is derived from engine fuel consumption Hap and its characteristics Curve, or from the original engine test data. By incorporating them with the equations of driving performance in terms of vehicle speeds, this computational simulation model is established. Based on this model, a program named CQ-1 with its block flow chart and function module was made. As an example, a heavy duty truck Hong Yan CQ19210 was taken for simulation. The accuracy of simulation has been evaluated by comparing its results with that of test. The factors influencing the simulation accuracy will be discussed in this paper.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.