Effect of idle time after starting the engine of a gasoline passenger car on the temperature rise of the exhaust catalyst and exhaust emissions

Abstract

The RDE regulation will be applied in the EU from 2017 and will implemented in Japan from 2022 from diesel vehicles. We used the in-vehicle exhaust gas analyzer (PEMS) used in RDE to drive on the road and reported the effects of the soak temperature of a small gasoline passenger vehicle and the idle time after starting the engine on the exhaust emissions. In this report, for the purpose of optimizing the idle time after starting the engine, the temperature rise characteristics of the three-way catalyst installed directly under the engine are measured, and the effect of the idle time after cold starting of the engine on the exhaust emissions is reported.