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Ride quality refers to a vehicle's effectiveness in insulating the occupants from undulations in the road surface such as bumps or corrugations. [ 1 ] [ 2 ] [ 3 ] A vehicle with good ride quality provides comfort for the driver and the passengers.
In the United States, railroads are looking into new ways to measure geometry that cause even less interference to train operations. Testing performed by Transportation Technology Center, Inc. (TTCI) at the Transportation Technology Center in Pueblo, Colorado, uses a portable ride quality monitoring system attached to a standard freight car ...
One disadvantage of a wheel hub motor is that the weight of the motor is not supported by the suspension's shock absorbers, adding to the vehicle's unsprung weight which adversely affects handling and ride quality. Despite this reduction in ride quality with electric hub motors, it is still better than the ride quality of equivalent combustion ...
An active suspension is a type of automotive suspension that uses an onboard control system to control the vertical movement of the vehicle's wheels and axles relative to the chassis or vehicle frame, rather than the conventional passive suspension that relies solely on large springs to maintain static support and dampen the vertical wheel movements caused by the road surface.
The frequency of the suspension response at the golden-car simulation speed also determines the final IRI ride value. The IRI sensitivity is focused on wavelengths between 0.82 and nearly 200-feet (0.25 to 61 meters). Although, if any wavelengths are equal to 7.9 or 50 feet (2.4 or 15.2 meters) the IRI values are weighted higher. [2]
In a statement, his family said: "Our family is suffering more than anyone can imagine. Drew lit up every room he entered. His smile was infectious.