Hyundai Motor Company

Kia Motors Corporation

Fev Europe Gmbh

John Henry Kwee

Jin Woo Park

Ki Hyung Joo

Arun Palaniappan Muthukaruppan

Myung Jong Lee

Waldemar Josef Kansy

Provided is an exhaust purification system that may include: a first catalyst installed on a rear exhaust pipe of an engine; a selective catalytic reduction (SCR) catalyst installed on the rear exhaust pipe of the first catalyst; a reducing agent injector which is installed on an exhaust pipe between the first catalyst and the SCR catalyst and configured to inject a reducing agent; and a controller configured to control an amount of reducing agent injected from the reducing agent injector. /The controller may calculate a total amount of ammonia adsorbed in the SCR catalyst, a required amount of reducing agent based on a total amount of ammonia adsorbed in the SCR catalyst, and the amount of nitrogen oxide introduced into the SCR catalyst, and then control a reducing agent injector to inject the required amount of reducing agent.

Exhaust purification system of controlling injection amount of reducing agent

Growing community of inventors

Erkelenz, Germany

John Henry Kwee