Ford is busily promoting the new Ford Ranger. This time I've received a press release of the Ranger's NVH statistics that would make interesting reading and viewing ...on your tablet or smartphone that you are looking at whilst waiting for something to be done like baking a cake, waiting for a connecting flight or sitting in the lavatory or just waiting for somebody to arrive.
PRESS RELEASE
Quiet Confidence: The New Ford Ranger
In the world of modern pickup trucks, being a tough and capable work vehicle is the cost of
entry. To stand apart from the crowd, a new truck has to combine the rugged performance
customers need with the comfort, refinement and quietness they and their passengers want.
Engineers took a hard look at the previous Ranger – already among the most refined pickups on
the market – and worked on solutions to improve noise, vibration and harshness (NVH) even
further. “The new Ranger is a step up across all NVH metrics,” said Nick Lovadina, NVH
supervisor for the new Ford Ranger.
The improvements are not just for bragging rights: Reduced cabin noise can help to reduce
driver fatigue on long journeys.
Some of the solutions implemented on the new Ranger include:
Sound-deadening materials: Special materials, like a dense insulating felt under the
hood on some models, help to reduce powertrain, wind and road noise, making for a
quieter cabin
Engine management improvements: Updates to the engine management system help
to improve diesel performance and efficiency. Precise injection timing and calibration
means more efficient performance and less combustion crackle for less powertrain noise
Smart aerodynamic design: Aerodynamics engineers added small aerodynamic “sails”
on the wing mirrors to significantly reduce low-frequency throbbing noise created when
driving with one front window open
Hydro mounts: The new Ranger uses hydraulically damped engine mounts on some
models to effectively combat engine vibrations. Filled with hydraulic fluid, these are
particularly effective at reducing low-frequency vibrations created by diesel engines.
“The hydro mount engine mounting system is not only an advantage for the key NVH metrics of
idle, start-up and acceleration, but also helps to improve overall vehicle dynamics,” said
Lovadina. “The customer ultimately has a truck that feels more refined than ever before.”
The efforts of Lovadina’s team resulted in a Ranger that is just 5 dB louder in the cabin at idle
than a humming refrigerator, and just 5 dB louder at 80 km/h than rainfall.
“The combination of the refined powertrain and the improvements we’ve made through actions
like sound deadening make for an extremely quiet, stress-free driving experience at highway
speeds and in typical everyday city driving for all occupants,” said Lovadina.
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