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AD&P; ∕ OCTOBER 2017
CHEVROLET TRAVERSE
Traverse is the new chassis and suspension. He says that one
of the issues with developing a suspension setup for a vehicle
like this is to provide a sweet spot between having an isolated
ride yet good handling. Realize that this is a big vehicle, and
in addition to the aforementioned dimensions, know that the
Traverse has a curb weight of 4,362 pounds.
Up front: MacPherson strut independent with hydraulic
control arm ride bushings and hollow stabilizer bar. There is
an isolated cradle. ZF pre-loaded valve (PLV) passive dampers
with rebound springs.
In back: Five-link independent setup. Uses an isolated rear
cradle with a hydraulic forward mount. There are cross-axis
ball joints and a hollow stabilizer bar. There are ZF PLV 18/36
shocks. And there are newly-developed (patent pending)
auxiliary spring aids.
While on the subject of ride and handling, there are an
electric variable-effort power steering system with active
return assist and four-wheel-disc brakes with power assist
(using Duralife rotors, which have a hardened and strength-
ened surface to reduce corrosion).
MASS EFFICIENT
About that aforementioned curb weight. Perelli points out
that the body-in-white of the 2018 Traverse is actually 111
pounds lighter than its predecessor and the overall vehicle
mass is down by 362 pounds.
A big contributor to the weight-save is the use of high-
strength steels. The percentage of stamped steel usage by
mass:
• 36 percent dual-phase and multi-phase steels
• 20 percent high-strength, low-alloy steel
• 17 percent bake-hardenable steel
• 7 percent martensite and press-hardened steels
• 20 percent mild steel
In terms of the vehicle body and structure, there is no
aluminum used; it is all steel.
Perelli also says that in addition to welding, there
is 120-feet of adhesive used to help create a stiff
body structure.
Perelli: "The mantra we had when developing this
vehicle: 'No Compromise.'"
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