Dielektrika – Department of Electrical Engineering University of Mataram Vol. 10, No. 1, February 2023, pp. 72-81 P-ISSN: 2086-9487, E-ISSN: 2579-650x, (Accredited Sinta – 4, Decree no. 200/M/KPT/2020) 72 Journal homepage: https://dielektrika.unram.ac.id Email: dielektrika@unram.ac.id Electric Vehicle (EV) Power Consumption (Battery) On Uphill Road Conditions I Made Budi Suksmadana 1 , I Nyoman Wahyu Satiawan 1 , I Ketut Wiryajati 1 , Warindi 1 , Supriyatna 1 , Supriono 1 , Ida Bagus Fery Citarsa 1 1 Department of Electrical Engineering, University of Mataram, Jl. Majapahit 62, Mataram, Lombok NTB, INDONESIA ARTICLE INFO ABSTRACT Article history : Received Revised Accepted Electrical Vehicle (EV) has been developing since the mid-18th century and reached its peak at the end of the 18th century. Dwindling fuel reserves and environmental damage caused by exhaust emissions from millions of fossil- fuel vehicles are the driving factors for the development of electric cars. Technological developments in the battery sector have also contributed to the development of electric cars. One of the important components in an electric car is the battery which will provide resources to the system, so determining the capacity and knowing the performance of the battery used is very important. To find out the battery performance, the model can be made using MATLAB/SIMULINK. The model built consists of electric (DC motor, control and battery) and mechanical (transmission, wheels, brakes and body) parts. The models made for speeds of 35, 40, and 45 km/h on level ground, the distances that can be covered are 2,292, 2,597, and 2,899 m, while the remaining battery capacity (SoC, %) is 92.93%, 91.16%, and 89.17%. This is proportional to the distance traveled which also proves that the model made is appropriate. Uphill roads affect the use of battery capacity, the greater the angle of incline, the greater the battery capacity used. Keywords : Battery; Electric Vehicle (EV); State of Charge (SOC); Corresponding Author: I Made Budi Suksmadana, Department of Electrical Engineering, University of Mataram Jl. Majapahit 62, Mataram, Lombok NTB, INDONESIA Email: mdbudisuk@unram.ac.id 1. INTRODUCTION Transportation electrification is a promising solution to address the problem of climate change. The use of electric vehicles has had a significant impact in various fields. Various policies have been produced to encourage the spread of electric vehicles and the trend of increasing use of electric vehicles in recent years. The development and use of electric cars (EV) will increase rapidly in the future, this development will also have an impact on electrical energy storage media in the form of batteries. Electric cars that use batteries are expected to be able to replace vehicles that use fossil fuels so that they can be more efficient and environmentally friendly[1]. The design of electric vehicles is a complex process including energy distribution, vehicle transmission, road characteristics and so on[2]. Knowing battery performance in various operating conditions is very important, especially in electric cars. There are several accurate and efficient battery models that can be used in electric car models, such as the first or second order Thevenin battery models, “Fig. 1”[3]. By making an electric car model using MATLAB/SIMULINK it is expected to be able to find out the performance of the battery used in an electric car on uphill road conditions, one of the battery performance parameters can be described by the state of charge (SoC) parameter.