Study of
reducing the emissions produced by motor vehicles
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Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides. Starting in the 1950s and 1960s, various regulatory agencies were formed with a primary focus on studying the vehicle emissions and their effects on human health and the environment. As the worlds understanding of vehicle emissions improved, so did the devices used to mitigate their impacts. The regulatory requirements of the Clean Air Act, which was amended many times, greatly restricted acceptable vehicle emissions. With the restrictions, vehicles started being designed more efficiently by utilizing various emission control systems and devices which became more common in vehicles overtime.
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Vehicleemissionscontrol is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions...
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the CO2 emissions labelling mandatory on all new cars in the country. The auto companies should inform the customers about a vehicle'semissions. For the...
European emission standards to controlemissions of engines that are not used primarily on public roadways. This definition includes off-road vehicles as well...
diesel engines to activate their emissionscontrols only during laboratory emissions testing, which caused the vehicles' NOx output to meet US standards...
Vehicle size classes are series of ratings assigned to different segments of automotive vehicles for the purposes of vehicleemissionscontrol and fuel...
In the United States, vehicle safety inspection and emissions inspection are governed by each state individually. Fifteen states have a periodic (annual...
Secondary air injection (commonly known as air injection) is a vehicleemissionscontrol strategy introduced in 1966, wherein fresh air is injected into...
addition, the vehicle with a carbon dioxide emissions of 179 g CO2/km is permitted, but in real operation on the road, according to DUH, the emissions are on...
advanced NOx reducing technology for vehicleemissionscontrol in diesel-powered vehicles. The technology in BlueTec vehicles includes a selective catalytic...
carbon emissions by vehicles. Many car models had to pass yearly or biyearly AirCare inspections. The aim was to prevent old cars with high emissions from...
motor vehicle hardware, software, or design that interferes with or disables emissionscontrols under real-world driving conditions, even if the vehicle passes...
An onboard refueling vapor recovery system (ORVR) is a vehicle fuel vapor emissioncontrol system that captures volatile organic compounds (VOC, potentially...
crankcase gases back to the combustion chamber, as part of the vehicleemissionscontrol, in order to reduce air pollution. Two-stroke engines with a crankcase...
natural gas; Emissions of CO2-equivalent greenhouse gases - primarily carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O); and Emissions of six criteria...
engines with NNOx-reducing reducing technology for diesel-powered vehicleemissionscontrol. This technology has also been used in SEAT's models like the...
program's stated aim is to reduce air pollution from vehicles by ensuring that cars with excessive emissions are repaired in accordance with federal and state...
emissions associated with cold starts. A pre-cat is most commonly used by an auto manufacturer when trying to attain the Ultra Low EmissionsVehicle (ULEV)...
are rigged to "delete" emissionscontrols. According to government estimates, the practice can increase nitrogen oxide emissions as much as 310 times,...
VED that was linked explicitly with a vehicle's carbon emissions ratings, as a means for vehicleemissionscontrol. Since then, VED was levied in a system...
including: savings in fuel and maintenance costs, extending vehicle life, and reducing damaging emissions. An idling engine consumes only enough power to keep...
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