Automotive Engineering - May 2021 - 15

ROAD READY

Cadillac to launch 2023 Lyriq EV months earlier than planned 
 Brewer said the 2023 Lyriq will achieve class-leading home
AC charging that delivers 52 miles (84 km) of driving range per
hour from its onboard 240-volt Level 2 charger operating at 19.2
kW. That charging rate does require installation of a special 9.2kW home charging station with 100-amp service. At DC fastcharging facilities, Lyriq can recharge at up to 76 miles in 10 minutes and 195 miles (314 km) in 30 minutes. 
 

Rear-drive - for now 

Cadillac describes the 2023 Lyriq as an SUV, although its roof is some 14
inches lower than Cadillac's Escalade flagship. 
Citing advances in its vehicle-development processes and
tireless work from a global engineering team during the
COVID-19 pandemic, executives and engineers for General
Motors' Cadillac premium-vehicle brand said the brand's first
electric vehicle (EV), the 2023 Lyriq, will be available to customers in the first half of next year - months ahead of earlier
projections. The company also confirmed the Lyriq's base
price will be $59,990. 
 Lyriq chief engineer Jamie Brewer said in a virtual meeting
with reporters that the Lyriq - Cadillac describes the vehicle
as an SUV, although it has a low roofline and more car-like
profile - will begin production late in the first quarter of 2022.
Cadillac added in a release that " initial availability " to customers will start in the first half of 2021.
 The Lyriq's production timeline is considerably advanced,
said Brewer, thanks to GM's extensive use of virtual-development tools. Computational fluid dynamics (CFD) sped critical engineering of thermal-management systems, and other
digital tools accelerated ride-and-handling testing and manufacturing processes at the retooled Spring Hill, Tenn. assembly plant where the EV will be built.  " The overall 'feel' of
the vehicle is right where we wanted it, " Brewer said, adding
it to be " very gratifying at this point in the program. "  
 

Cadillac also indicated that at launch, the Lyriq propulsion layout is rear-wheel drive with a single traction motor for the rear
axle. The permanent-magnet (PM) motor is rated at 340 hp
and 325 lb-ft (440 Nm). Brewer added that  " a performance
all-wheel-drive variant will be available down the road. "  
 The Lyriq's wheelbase is 121.8 in. (3094 mm, and overall length
is 196.7 in (4996 mm), making it slightly longer between axles
than the current standard-wheelbase Escalade (120.9 in/3071
mm), although the Lyriq is nearly 15 in (381 mm) shorter overall.
Underscoring the Lyriq's decidedly less trucky profile, however, is
its 62.9 in (1598 mm) height, compared to the Escalade's 76.6-in
(1948-mm) height.
AE Averna Digital Ad 0521.qxp_1/4 Page 4/13/21 12:23 PM Page 1

Bill Visnic

CADILLAC

Ultium battery gives solid range 

The company reinforced its earlier projections for the Lyriq's
driving range, saying internal testing demonstrated a maximum
range of 300-plus miles (483 km). Cadillac also specified the
capacity of the Ultium lithium-ion battery pack for the Lyriq is
100 kWh from a 12-module configuration. The cell chemistry uses
nickel-cobalt-manganese-aluminum (NACM) cathodes and
blended graphite anodes. GM recently confirmed it is investing
$2.3 billion to build an all-new Ultium battery cell manufacturing facility at Spring Hill. Ultium Cells LLC, is the joint venture
between GM and LG Energy Solution. 
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Automotive Engineering - May 2021

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