Ibama gave automakers more time to finish the more polluting cars that started production in 2021 but have been stopped at construction sites due to lack of components. Photo: Volkswagen do Brasil / Disclosure
The vehicle emissions control program (Proconve) entered a new phase on January 1, 2022. The L7 version tightens the parameters that must be observed by car manufacturers so that their light vehicles can be marketed in Brazil, but it gave a additional time for companies to complete assembly. more polluting cars that were stopped at construction sites and not finished until the start of the year due to the lack of components, which has impacted the global industry since 2020.
The order published by Ibama in the Official Journal of December 30, 2021 extends the validity of Vehicle or Engine Configuration Use Licenses (LCVMs) issued for models that do not meet the new pollutant emission limits, but which were not assembled due to force majeure (in this case the unavailability of specific components, caused by the semiconductor crisis, and the lack of materials, caused by the economic crisis). According to the agency, national vehicles of phase L6 whose manufacture began before December 31, 2021 may have an assembly completed by March 31, 2022 and marketed by June 30.
According to Ibama, “the unfinished vehicles in the yards of the automobile manufacturers in Brazil, with the LCVM expired, would generate a stock that would have to be destroyed – which would even lead to an environmental liability problem, in addition to the economic, social and legal consequences. impacts resulting from the scrapping contract in cases where the cars had already been marketed ”.
The president of the National Association of Automobile Manufacturers (Anfavea), Luiz Carlos Moraes, claims that less than 20,000 units are in this situation, a volume considered quite low compared to national production and which should be sold even in 2021 Moraes stressed that the decision taken by the federal government meets the demand of the segment, but does not mean the extension of the L6 phase, since the vehicles which began to be assembled in 2022 comply with the new emissions parameters. .
What changes with the new phase of Proconve
The new parameters that have become mandatory for passenger cars and light trucks manufactured in the country from the first day of 2022 are aimed at reducing the emission levels of pollutants (such as carbon monoxide, nitrogen oxide , hydrocarbons, alcohols, aldehydes, soot and particulate matter). The main requirements now include the reduction of pollutants emitted in the exhaust gases, evaporative emissions and the improvement of on-board diagnostics (OBD).
Combined with the reduction in the levels of pollution at the tailpipe, manufacturers will have to guarantee these levels up to 160,000 km, i.e. double the tread required up to the L6 from Proconve.
Evaporative emissions are related to the pollutants that the vehicle emits from the evaporation of fuel outside of the combustion process produced in the engine. Its limit has dropped by two-thirds, from 1.5g per test in phase L6 to 0.5g now, with measures also considered more stringent by the director of light vehicles and emissions of the Brazilian Association of Automotive Engineering (AEA), Raquel Mizoe.
According to her, strategies to achieve the parameters required by Proconve L7 range from replacing the elements (with less permeable multi-layered metal or plastic tanks, larger cans for better filtering of the fuel vapors generated, heated injection nozzles to remove the auxiliary tanks) to the improved technology used in each model.
Also according to Mizoe, the tougher requirement levels of Proconve could explain (but not entirely) the alignments of several car and engine models, announced by automakers throughout 2021. [volume] that you would need to invest in the vehicle is not worth it, the investment ends up not paying off or the costs would approach other models with more technology, ”he explains.
It is also possible that some models are not compatible with more robust items, making it impossible to integrate more advanced components into designs that eventually become obsolete. A similar result was the Kombi, for example, which was discontinued in Brazil as part of mandatory vehicle safety upgrades. Not adaptable to the placement of a double front airbag and an ABS type brake, the model ceased to be manufactured by Volks do Brasil in December 2013.
According to Ibama, over the years of implementation, Proconve has already promoted a 98% reduction in pollutant emissions from vehicles sold in Brazil. Carbon monoxide (CO) emissions, for example, which reached 54 g / km at the start of the program (created in 1986), are now close to 0.4 g / km, 135 times less.