Thermal management of modern electric vehicle battery systems (MEVBS)

Author(s):  
Asif Afzal ◽  
A. D. Mohammed Samee ◽  
R. K. Abdul Razak ◽  
M. K. Ramis
Author(s):  
ibrahim Dinçer ◽  
Halil S. Hamut ◽  
Nader Javani

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 489 ◽  
Author(s):  
Sid-Ali Amamra ◽  
Yashraj Tripathy ◽  
Anup Barai ◽  
Andrew D. Moore ◽  
James Marco

Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels. These power subsystems can generate undesired electrical harmonics on the direct current (DC) bus of the powertrain. This may lead to the on-board battery being subjected to DC current superposed with undesirable high- and low- frequency current oscillations, known as ripples. From real-world measurements, significant current harmonics perturbations within the range of 50 Hz to 4 kHz have been observed on the high voltage DC bus of the EV. In the limited literature, investigations into the impact of these harmonics on the degradation of battery systems have been conducted. In these studies, the battery systems were supplied by superposed current signals i.e., DC superposed by a single frequency alternating current (AC). None of these studies considered applying the entire spectrum of the ripple current measured in the real-world scenario, which is focused on in this research. The preliminary results indicate that there is no difference concerning capacity fade or impedance rise between the cells subjected to just DC current and those subjected additionally to a superposed AC ripple current.


2019 ◽  
Author(s):  
Ian Kay ◽  
Roja Esmaeeli ◽  
Seyed Reza Hashemi ◽  
Ajay Mahajan ◽  
Siamak Farhad

Abstract This paper presents the application of robotics for the disassembly of electric vehicle lithium-ion battery (LIB) packs for the purpose of recycling. Electric vehicle battery systems can be expensive and dangerous to disassemble, therefore making it cost inefficient to recycle them currently. Dangers associated with high voltage and thermal runaway make a robotic system suitable for this task, as the danger to technicians or workers is significantly reduced, and the cost to operate a robotic system would be potentially less expensive over the robots lifetime. The proposed method allows for the automated or semi-automated disassembly of electric vehicle LIB packs for the purpose of recycling. In order to understand the process, technicians were studied during the disassembly process, and the modes and operations were recorded. Various modes of interacting with the battery module were chosen and broken down into gripping and cutting operations. Operations involving cutting and gripping were chosen for experimentation, and custom end of arm tooling was designed for use in the disassembly process. Path planning was performed offline in both MATLAB/Simulink and ROBOGUIDE, and the simulation results were used to program the robot for experimental validation.


2020 ◽  
Vol 18 ◽  
pp. 100583 ◽  
Author(s):  
S. Wiriyasart ◽  
C. Hommalee ◽  
S. Sirikasemsuk ◽  
R. Prurapark ◽  
P. Naphon

2014 ◽  
Vol 73 (1) ◽  
pp. 307-316 ◽  
Author(s):  
N. Javani ◽  
I. Dincer ◽  
G.F. Naterer ◽  
G.L. Rohrauer

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