A Study on Cooling Performance Augmentation of Water-Cooling and Optimization Design Utilizing Carbon Material in Electric Vehicle Secondary Battery

2020 ◽  
Vol 37 (7) ◽  
pp. 519-528
Author(s):  
Seung Bong Hyun ◽  
Dong-Ryul Lee
Keyword(s):  
Electric Vehicle ◽  
Carbon Material ◽  
Optimization Design ◽  
Water Cooling ◽  
Cooling Performance ◽  
Secondary Battery

scholarly journals Newly Developed Motor Cooling Method Using Refrigerant

2019 ◽  
Vol 10 (2) ◽  
pp. 38
Author(s):  
Hidemasa Fujita ◽  
Atsushi Itoh ◽  
Tohru Urano
Keyword(s):  
Fuel Cell ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicle ◽  
Fuel Cell Vehicle ◽  
Water Cooling ◽  
Test Results ◽  
Cooling Performance ◽  
Cooling Method ◽  
Motor Cooling

One of the greatest issues for electric vehicles such as an electric vehicle (EV), a hybrid vehicle (HV), a plug-in hybrid electric vehicle (PHEV) and a fuel cell vehicle (FCV) is further improvement of effective motor cooling, since higher rated torque is achieved with higher cooling performance. In this paper, we introduce and propose a newly developed motor cooling method we tested using refrigerant, comparing with conventional water cooling. Test results show higher cooling performance of refrigerant cooling, which achieved the rated torque 60% higher than that of water cooling.

scholarly journals Study of Injection Method for Maximizing Oil-Cooling Performance of Electric Vehicle Motor with Hairpin Winding

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 747
Author(s):  
Taewook Ha ◽  
Dong Kyu Kim
Keyword(s):  
Electric Vehicle ◽  
Flow Rate ◽  
Film Formation ◽  
Formation Rate ◽  
Cooling Performance ◽  
Oil Film ◽  
Injection Method ◽  
Cooling Method ◽  
Oil Flow ◽  
Oil Injection

The oil injection method was studied to maximize the cooling performance of an electric vehicle motor with a hairpin winding. The cooling performance of the motor using the oil cooling method is proportional to the contact area of the oil and the coil. A numerical analysis was conducted to examine the effect of the spray nozzle type on the oil flow. The dripping nozzle forms the thickest oil film on the coil, making it the most effective for cooling of hairpin-type motors. Subsequently, an experimental study was conducted to optimize the nozzle diameter and number of nozzles. When the inlet diameter and number was 6.35 mm and 6, the oil film formation rate was 53%, yielding the most uniform oil film. Next, an experiment was performed to investigate the effects of the oil temperature and flow rate on the oil flow. The oil film formation rate was the highest (83%) when the oil temperature was 40 °C and the flow rate was 6 LPM.

Optimization Design of the Electromagnetic Torque for Surface-Mounted PMSM using GA and Finite Element Analysis for Electric Vehicle

2021 ◽  
Author(s):  
Edric Wee Ming Wong ◽  
Choo Jun Tan ◽  
Jenn Hwai Leong ◽  
Syauqina Akmar Mohd-Shafri ◽  
Dahaman Ishak ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Electric Vehicle ◽  
Optimization Design ◽  
Electromagnetic Torque ◽  
Element Analysis
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