Comparison of Microscopic On-road Fuel Consumption Model Based on VSP and Ln (TAD)

Abstract

Abstract: In microscopic on-road fuel consumption models, the power demand-based parameter was commonly used to characterize the vehicle activities because of its strong correlation with fuel consumption. Both VSP and the natural logarithm of Ln(TAD) were commonly used power demand-based parameters. It is necessary to compare the accuracy and characteristic of two fuel consumption models that are developed based on the VSP with Ln(TAD). By collecting and processing field vehicle activities and fuel consumption data, two fuel consumption models for LDVs, one based on the VSP and another one based on Ln(TAD) were developed. Then, the distribution model between the VSP distribution and Ln(TAD) and the average travel speed was constructed. Subsequently, prediction accuracies based on the developed models were compared. The characteristics and regularities of microscopic fuel consumption models based on the VSP and Ln(TAD) for LDVs on urban roads were summarized for the measurements of vehicle fuel consumption.

Key words: fuel consumption model, VSP, Ln(TAD), prediction accuracy

CLC Number:

U491

Zhao Qi, Yu Lei, Song Guohua. Comparison of Microscopic On-road Fuel Consumption Model Based on VSP and Ln (TAD)[J]. Journal of System Simulation, 2015, 27(11): 2662-2669.

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