Trip energy consumption estimation for electric buses
Artikel i vetenskaplig tidskrift, 2022

This study aims to develop a trip energy consumption (TEC) estimation model for the electric bus (EB) fleet planning, operation, and life-cycle assessment. Leveraging the vast variations of temperature in Jilin Province, China, real-world data of 31 ​EBs operating in 14 months were collected with temperatures fluctuating from −27.0 ​to 35.0 ​°C. TEC of an EB was divided into two parts, which are the energy required by the traction and battery thermal management system, and the energy required by the air conditioner (AC) system operation, respectively. The former was regressed by a logarithmic linear model with ambient temperature, curb weight, travel distance, and trip travel time as contributing factors. The optimum working temperature and regression parameters were obtained by combining Fibonacci and Weighted Least Square. The latter was estimated by the operation time of the AC system in cooling mode or heating mode. Model evaluation and sensitivity analysis were conducted. The results show that: (i) the mean absolute percentage error (MAPE) of the proposed model is 12.108%; (ii) the estimation accuracy of the model has a probability of 99.7814% meeting the requirements of EB fleet scheduling; (iii) the MAPE has a 1.746% reduction if considering passengers’ boarding and alighting.

Cold region

Trip energy consumption

Electric bus

Regression model

Operational data

Författare

Jinhua Ji

Jilin University

Yiming Bie

Jilin University

Ziling Zeng

Transportgruppen

Linhong Wang

Jilin University

Communications in Transportation Research

27724247 (eISSN)

Vol. 2 100069

Ämneskategorier

Transportteknik och logistik

Energisystem

Husbyggnad

DOI

10.1016/j.commtr.2022.100069

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Senast uppdaterat

2024-01-03