This case study shows that the actual CO2 reductions of 18.6% achieved in the 2018 Camry exceed the 17.7% reductions predicted by EPA models. This confirms that the OMEGA and LPM models accurately predict both new technology benefits and synergies between technologies. It also suggests that other studies contradicting EPA model outcomes are inaccurate and underpredict future technology benefits.
Explores some of the compliance pathways available to heavy duty vehicle manufacturers. Specifically, this paper develops hypothetical technology packages for certain types of tractor trucks, vocational vehicles, and trailers using distinct technology strategies compares cost-effectiveness.
Based on an assessment of production costs for two GPF designs, we estimate for a 2.0L gasoline engine a cost of $106 for a stand-alone GPF and between $114 and $154 for a four-way catalyst, presented here as a three-way catalyst (TWC) with PM trapping capabilities.
Actions that reduce or eliminate HFC-134a emissions can make an important contribution toward lowering the overall climate impact of the global auto fleet. This paper assesses alternate refrigerant emissions and their climate impacts.
This paper was submitted to the UNECE GRPE informal subgroup on the development of a worldwide harmonized light vehicles test procedure (WLTP-DTP) on the issue of inertia classes to be used in the development of the WLTP.
Case study demonstrates how metrics that include vehicle and/or fuel weight could relax incentives for manufacturers to devote technological improvements to reducing fuel consumption rather than boosting performance.
Surveys the range of test cycles used to evaluate the efficiency of vehicles—including passenger cars and trucks, motorcycles, heavy-duty trucks and buses, and marine vessels—in order to inform ICAO discussion of a CO2 certification procedure.