IEEE Electrification Magazine - June 2014 - 24

EPA Label Range (mi)

85
80

Competitor
(B-Segment)

Spark EV

Competitor
(C-Segment)

70
65
60

Competitor
(A-Segment)
5

8
9 10 11 12 13
Acceleration: IVM-60 (s)

Figure 20. The Spark EV versus the competition-acceleration and
EPA label range.

C vehicle segments. the Chevrolet spark has an impressive
range and acceleration as compared to its competition.
the Chevrolet spark's propulsion system was carefully
designed to meet the vehicle range and performance
requirements. the combination of high-efficiency em with
a low-spin loss, single-stage planetary gear system along
with an efficient Pim, aPm, and charger has delivered fast
acceleration and competitive range over the standard
drive cycles. the em and the mechanical system design
also have enabled a very low-noise [low-noise vibration
and harshness (nvh)] drive system. achieving an acceptable noise level can be a challenge in an ev drive system
due to the absence of an engine to mask the overall noise.
the Chevy spark is fun to drive because of its exceptionally low-inertia, high-torque, and low-noise du.

For Further Reading
a. s. o. Yu, l. l. C. silva, C. l. Chu, P. t. s. nascimento, a. s.
Camargao, "electric vehicles: struggles in creating a market," in Proc. Technology Management Energy Smart World
(PICMET), 2011, pp. 1-13.
s. lukic, "Charging ahead," IEEE Ind. Electron. Mag., vol. 2,
no. 4, pp. 22-31, 2008.
l. ulrich, "state of charge," IEEE Spect., vol. 49, pp. 56-
59, 2012.
Y. sato, s. ishikawa, t. okubo, m. abe, and K. tamai,
"development of high response motor and inverter system for the nissan leaf electric vehicle," sae technical
Paper 2011-01-0350, 2011.
m. Jeffers et al., "spark ev propulsion system integration," in Proc. SAE Congr., 2014.
m. ueda, t. hirota, and a. hatano, "Challenges of widespread marketplace acceptance of electric vehicles-
towards a zero-emission mobility society," sae technical
Paper 2010-01-2312, 2010.

Biographies
Khwaja M. Rahman (khwaja.rahman@gm.com) received
B.sc. and m.sc. degrees from Bangladesh university of

I E E E E l e c t r i f i c ati o n M agaz ine / j un e 2014

engineering and technology, dhaka, in 1987 and 1990
respectively, and m.s. and Ph.d. degrees from texas a&m
university, College station, in 1992 and 1998, respectively,
all in electrical engineering. Currently he is the technical
lead of the electromagnetic machine design group of the
general motors global electrification division.
Sinisa Jurkovic (sinisa.jurkovic@gm.com) received the
B.s. degree in electrical and computer engineering from
michigan state university, east lansing, in 2003, and the
m.s. and Ph.d. degrees in electrical engineering from the
same university in 2005 and 2009, respectively, specializing in electric machines and drives. in 2008, he joined
general motors, where he is currently a part of the global
electrification, electric drive and systems engineering
group in Pontiac, michigan, working on design, analysis,
and control of electric machines and drives for hybrid,
electric and fuel cell vehicles.
Shawn Hawkins (shawn.hawkins@gm.com) is presently an advanced technology project leader at general
motors Corporation. he received his B.s. degree in electrical engineering from wayne state university and his master's degree in engineering from the university of
michigan, ann arbor. during his 15-year career at general
motors, he has held numerous positions within the hybrid
and electrification Product engineering department ranging from controls calibration and validation engineer, lead
analysis engineering for both belt alternator starter and
pure battery electric vehicles.
Steven Tarnowsky (steven.a.tarnowsky@gm.com)
earned a B.s. degree in electrical engineering from the university of michigan and an m.s. degree in electrical engineering from the university of southern California. he
joined general motors in 1994, where he has worked in the
areas of battery charging systems, electrical safety, validation, and program management on numerous electric and
hybrid-electric vehicle programs including the ev1 and
eassist. he is currently the senior manager for electrification systems engineering.
Pete Savagian (peter.j.savagian@gm.com) holds a B.s.
degree in mechanical engineering from the university of
wisconsin, an m.s. degree in operations research engineering from the university of southern California, and an
m.B.a. degree from duke university. he has worked on
electric vehicles and systems since 1990 and now serves
as general director of general motor's electrification systems and electric drive engineering organization. For the
past 16 years, he has managed product and technology
development for general motor's hybrid and electric vehicles, including architecture development, electronics and
motor design and development, systems engineering, systems analysis, and control algorithms development.

http://www.B.sc http://www.m.sc

Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2014