<span lang="EN-US">The dynamic design specifications of a vehicle are used to define the required torque and speed of a permanent magnet motor. This is due to providing clear instructions on the intent, performance, and construction of a vehicle. Therefore, this study aims to determine an engineering design and prototyping process of a Permanent Magnet Motor, to be used as an electric powertrain in a Utility Vehicle. Based on being used in severe road condition (steep inclination and off road), the vehicle should be able to handle a 45° inclination with total payload of approximately 250 kg. Using a rear-wheel-drive traction, its weight should also be less than 1000 kg. Furthermore, the motor should be operated at a maximum battery voltage of 100 V. According to the requirements, the electric powertrain should further have the ability to deliver a torque of approximately 1600 Nm on both rear wheels. Using a finite element method to simulate performances, transmission was coupled to the motor in providing the required torque. In addition, the motor prototype was subsequently manufactured and tested using a dynamometer. The results showed that the motor produced 19.6 kW, 5600 RPM, and 75 Nm at 96 V. Therefore, the design and prototyping process of the motor satisfied all the required specification.</span>
Modular design of battery pack for electric vehichle (EV) is an important things to consider. Because in modular battery pack, cost to manufacture can be reduced also easiness in handling. Modular battery pack also meant to be easily swapped between every modules. In this paper were presented the thermal analysis of modular battery pack that generate heat during charging or discharging process. Heat flux generated by the batteries will affect its surrounding thus increase the temperature of the batteries. Thermal analysis simulation were conducted to understand the thermal behaviour of the battery module. Thus the heat generated not exceed the maximal operational temperature of the battery cells that can reduce the battery life. The simulation is done by analyzing the heat power generated by the cells, the effect on surrounding air, and heat generated by the current flow in the circuit. Simulation result were showing that the the thermal behaviour of the module battery can be secured under its maximal operating condition. Because thermal stability having the largest effect on reliability on operational condition of battery pack.
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