About: Emission test cycle

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An emission test cycle is a protocol contained in an emission standard to allow repeatable and comparable measurement of exhaust emissions for different engines or vehicles. Test cycles specify the specific conditions under which the engine or vehicle is operated during the emission test. There are many different test cycles issued by various national and international governments and working groups. Specified parameters in a test cycle include a range of operating temperature, speed, and load. Ideally these are specified so as to accurately and realistically represent the range of conditions under which the vehicle or engine will be operated in actual use. Because it is impractical to test an engine or vehicle under every possible combination of speed, load, and temperature, this may not

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rdf:type	software yago:WikicatAutomotiveTechnologies yago:Abstraction100002137 yago:Act100030358 yago:Activity100407535 yago:Application100949134 yago:AutomotiveTechnology100950070 yago:Event100029378 yago:Occupation100582388 yago:Profession100609953 yago:PsychologicalFeature100023100 yago:YagoPermanentlyLocatedEntity yago:Technology100949619 yago:Use100947128 yago:WikicatPollutionControlTechnologies
rdfs:label	Emission test cycle (en)
rdfs:comment	An emission test cycle is a protocol contained in an emission standard to allow repeatable and comparable measurement of exhaust emissions for different engines or vehicles. Test cycles specify the specific conditions under which the engine or vehicle is operated during the emission test. There are many different test cycles issued by various national and international governments and working groups. Specified parameters in a test cycle include a range of operating temperature, speed, and load. Ideally these are specified so as to accurately and realistically represent the range of conditions under which the vehicle or engine will be operated in actual use. Because it is impractical to test an engine or vehicle under every possible combination of speed, load, and temperature, this may not (en)
dcterms:subject	Automotive technologies Pollution control technologies
Wikipage page ID	4025645 (xsd:integer)
Wikipage revision ID	1103508446 (xsd:integer)
Link from a Wikipage to another Wikipage	California Smog Check Program Engine test stand Emission standard Vehicle inspection Automotive technologies Pollution control technologies Emission standards Operating temperature dbr:Vehicle_test_stand
sameAs	Emission test cycle Emission test cycle Emission test cycle Emission test cycle
dbp:wikiPageUsesTemplate	dbt:More_citations_needed dbt:Redirect dbt:Reflist dbt:Measurement-stub
has abstract	An emission test cycle is a protocol contained in an emission standard to allow repeatable and comparable measurement of exhaust emissions for different engines or vehicles. Test cycles specify the specific conditions under which the engine or vehicle is operated during the emission test. There are many different test cycles issued by various national and international governments and working groups. Specified parameters in a test cycle include a range of operating temperature, speed, and load. Ideally these are specified so as to accurately and realistically represent the range of conditions under which the vehicle or engine will be operated in actual use. Because it is impractical to test an engine or vehicle under every possible combination of speed, load, and temperature, this may not actually be the case. Vehicle and engine manufacturers may exploit the limited number of test conditions in the cycle by programming their engine management systems to control emissions to regulated levels at the specific test points contained in the cycle, but create a great deal more pollution under conditions experienced in real operation but not represented in the test cycle. This results in real emissions higher than the standards are supposed to allow, undermining the standards and public health. (en)
gold:hypernym	Protocol
prov:wasDerivedFrom	wikipedia-en:Emission_test_cycle?oldid=1103508446&ns=0
page length (characters) of wiki page	3345 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Emission_test_cycle
is Link from a Wikipage to another Wikipage of	Engine test stand Sally Lieber European emission standards Vehicle emissions control The Amazing Race 32 Emission test cycles Engine emission test Vehicle emission standard Smog check
is Wikipage redirect of	Emission test cycles Engine emission test Smog check
is foaf:primaryTopic of	wikipedia-en:Emission_test_cycle

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