Electrically Heated Catalyst: Requirements, Controls and Key Parameters

Authors

E. Jean, E. Barrieu, M. Capirchia, Faurecia Clean Mobility, Bavans;
Dr. C. Herbers, Faurecia Clean Mobility, Augsburg

Year

2020

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 813

Summary

Emission standards continuous severization and public awareness are requiring solutions for ICE vehicles emitting extremely low emissions under all boundary conditions. The low temperature/ cold start operation is one of the most critical phases. Catalyst heating technology is very efficient under these conditions. This paper is showing product technology as well as the main challenges to be addressed in development and validation. The key points of the product validation are presented, showing design rules and critical parameters. Engine and exhaust models are used to define the power requirements for the heater. These simulations have been confirmed by real testing. They are in addition used in combination with product testing as software inputs to insure a safe operation of the heater and identify the key characteristics of the SW and HW controls.