A Study on Emission Reduction at Cold Start Using an Electrically Heated Three-Way Catalyst in Series Hybrid Passenger Vehicles

Abstract

Emission reduction at cold start is a common challenge on gasoline engine vehicles even in recent years with advanced technologies. Focusing on an emission purification system used in series hybrid vehicles, optimal measures that can reduce emissions with less energy were investigated by numerical simulations, where a three-way catalyst purification reaction model that was verified to reproduce experimental results accurately was adopted and functionalized as an electrically heated catalyst.