Oxygen storage capacity determination method of exhaust gas purification system for combustion engine and for evaluation of quality of purification system, involves designing of oxygen level of purification system from difference quantity

摘要

The method involves determining a difference quantity between an oxygen quantity integrated into the exhaust gas purification system (16) and an oxygen quantity delivered from the exhaust gas purification system. An oxygen level of the exhaust gas purification system is designed from the difference quantity.