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International Journal of Automotive Technology

, Volume 18, Issue 1, pp 117–124 | Cite as

Power control strategy for preventing thermal failure of passively cooled automotive battery packs

  • S. Jung
  • S. H. Park
  • B. C. Choi
Article

Abstract

Safety mechanism is required for an automotive battery pack to prevent thermal failure which could lead to catastrophic events. Passively cooled battery packs can prevent thermal failure by conducting adaptive control of battery power without any external cooling device. The key to this power control is how to secure battery safety while minimizing energy loss. This paper proposes a novel, adaptive power control strategy for automotive passive-cooling battery packs. Four different cases with electrochemical battery model are simulated and compared to each other according to a city driving profile. Driving simulation result confirmed that the present power control algorithm is an effective solution for preventing thermal failure along with improving energy efficiency of automotive battery packs.

Key Words

Hybrid electric vehicle Passive cooling Battery Thermal management 

Nomenclature

Nomenclature

cP

specific heat (J kg−1K)

C

capacitance (F)

I

current (A)

k

derarting factor, thermal conductivity (W m−1K−1)

m

mass (kg)

q

heat generation (W)

Q

capacity (Ah)

R

resistance (ohm)

T

temperature (K)

U

open circuit potential (V)

V

voltage (V)

ρ

density (kg m−3)

Subscripts

amb

ambient

ref

reference

s

serial

sat

saturation

th

thermal

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Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.School of Mechanical EngineeringChonnam National UniversityGwangjuKorea

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