In addition to taking care of its suspension duties,
the front axle subframe acts as a secondary load path and provides additional structural support in a crash.
An additional strut between
the front axle subframe and body sill creates a stiffer overall connection between the front wheels and the car's main structure, so the transverse forces generated on entry into corners are transferred to the car more directly.
Not exact matches
While the
front axle carrier and the crash box are made of carbon fiber, the rear
subframe complete with the engine and suspension mounts is aluminum.
Visible means to this end are the carbon - fiber upper
front strut brace and the lower aluminum support structure; the rear
subframe that, together with the five - link suspension, bolts directly onto the steel floorpan; and the lightweight wheels,
axles, and composite driveshaft.
In May, the National Highway Traffic Safety Administration opened an investigation into the rear
axles, as well as the
front subframe.
Also new are the
subframes, which carry the multi-link rear
axle and double wishbone
front suspension.
The potential inherent in the rear
axle design — based on the race - derived principle of the rear
axle subframe being bolted to the body — and the even more precisely calculated elastokinematics for the
front axle are exploited to the full in the models featuring the Competition Package, with the aim of enhancing driving precision.
Available in Combi and passenger car versions, NV200 was built on a modified version of Nissan's B Platform, with fully independent strut type
front suspension mounted on a separate
subframe and a leaf spring rear
axle.
As with the
front axle, these forces are directed to a
subframe.
The
front axle gets an aluminum
subframe, while the rear
axle is aluminum and steel.
The
front axle with aluminum
subframe and suspension - strut support includes specially - designed pivot bearings and wishbone structure.
In this case the focus of the developers is on the durability of the drive train components, the entire bodyshell and the integral
subframe on which the
front axle, steering and engine are mounted.
The components of the double - wishbone
front axle are directly fixed to the ladder - type frame without a suspension
subframe.
The simplest explanation is that components of the double - wishbone
front axle are directly fixed to the ladder frame, without a suspension
subframe.
For example, just the control arms, wheel carriers,
axle subframes and stiffening plate of the double - joint spring - strut
front axle weigh five kilograms less than would be the case with a conventional steel construction.
It started off with a double - joint spring strut
front suspension, featuring a lightweight aluminum control arms, wheel carriers and
axle subframes — this setup is 11 pounds lighter than the same setup in steel.
The
front -
axle components, steering gear, engine and transmission are pre-mounted on a high - strength - steel
subframe which is bolted securely to the body's side members, making it a key component in the
front crash structure of the new E-Class: in the event of a frontal impact, the
subframe forms a separate load - bearing path along which the impact energy is absorbed at specific points (see page 56).
An aluminium
subframe on the
front axle and aluminium brake bells resulted in further weight savings.
Engine: 162 - horsepower, SOHC, fuel - injected four cylinder Transmission: four - speed automaticSuspension:
front, MacPherson strut with coil springs, stabilizer bar and hydraulic shock absorbers; rear, live
axle with trailing arms, wishbone
subframe, panhard rod, coil springs, stabilizer bar and gas shocks Brakes: four - wheel power disc with Bosch anti-lock Steering: power - assisted rack and pinion Weight: 3,067 pounds Length: 191.7 inches EPA rating: 18 mpg...
Suspension:
front, MacPherson strut with coil springs, stabilizer bar and hydraulic shock absorbers; rear, live
axle with trailing arms, wishbone
subframe, panhard rod, coil springs, stabilizer bar and gas shocks Brakes: four - wheel power disc with Bosch anti-lock Steering: power - assisted rack and pinion Weight: 3,067 pounds Length: 191.7 inches EPA rating: 18 mpg city / 22 highway Fuel tank capacity: 15.8 gallons Price range: $ 27,000 to $ 30,000
The
subframe for the engine and the
front axle forms the backbone of the
front suspension.
A weight - saving MacPherson strut
front suspension with an aluminum
subframe and dynamic
axle kinematic help free up unnecessary weight.
The
front and rear
axle, both of them mounted on
subframes, take the form of high - precision five - link constructions made extensively from lightweight aluminum.
Like the integral rear
axle, whose
subframes are bolted rigidly to the body, the double - wishbone
front axle boasts specific kinematics and newly developed components made from forged aluminium.
A weight - saving MacPherson strut
front suspension with an aluminum
subframe and dynamic
axle kinematic frees up unnecessary heft.