Development of automotive emissions testing equipment and test methods in response to legislative, technical and commercial requirements

Abstract

Legislation regarding the reduction of harmful exhaust emissions, greenhouse gases and fuel consumption is one of the strongest drivers of development in automobile design. Strict legislation requires changes to engine calibration and hardware, but also to test facilities and emissions analysis systems; indeed, emissions standards in the European Union (EU), USA and Japan determine not only maximum permissible emissions factors, but also emissions testing methods and laboratory design. This paper is a continuation of [1], and presents the most recent additions to BOSMAL’s emissions testing laboratory – a recently-installed analyzer bench for modal raw exhaust measurement at both pre- and post-catalytic converter sampling locations, as well as EGR ratio calculation, are described in the context of its sophisticated emissions measurement facilities and the increasingly complex testing demands of vehicle and aftertreatment system manufacturers.

Impact of Modern Vehicular Technologies and Emission Regulations on Improving Global Air Quality

“…With advances in engine and emissions control technology, vehicular emissions have significantly decreased over the years [60,61]. The introduction of catalytic converters, diesel particulate filters and other emission control devices in the exhaust gas stream has helped to reduce emissions of harmful pollutants such as CO, HCs, NOx, and PM.…”

Experimental testing of longitudinal acceleration in urban buses

“…Due to the nature of the test subject, such testing includes the testing of specific elements, assemblies or complete vehicles. Complete vehicles are tested in road conditions [1,2], whereas specific elements or entire assemblies are tested on test benches [3][4][5]; however, there are test benches intended for conducting complete tests [6]. The manner in which tests are conducted depends mainly on the tests' objectives.…”