Title: Review of rapid ageing testing methods of three-way catalyst for gasoline engine

Authors: Sheng Su; Yitu Lai; Chunxiao Hao; Pan Hou; Tao Lv; Yunshan Ge

Addresses: School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China; Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen, 361023, China ' Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen, 361023, China ' School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China; Chinese Research Academy of Environmental Sciences, Beijing, 100012, China ' Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen, 361023, China ' Xiamen Environment Protection Vehicle Emission Control Technology Center, Xiamen, 361023, China ' School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China

Abstract: Recently, many advanced automotive companies around the world have developed rapid ageing methods for their three-way catalyst (TWC) converters. However, the systematic summary of related research progress is still lacking. Therefore, this work introduces TWC equivalent ageing mechanism, classifieds and summarises the current typical rapid ageing technology for TWC. The primary ageing of TWC on gasoline vehicle is thermal ageing, and the equivalent ageing theory is based on the Arrhenius equation. The current rapid ageing technology for TWC, including vehicle ageing, engine bench ageing, and burner ageing. There are three kinds of modes for engine bench ageing, which are single mode, two-mode and multimode ageing cycle. Introduces the common two-mode and multi-mode ageing cycle in detail. Meanwhile, the paper compares the characteristics of different ageing technologies. In general, engine bench ageing methods and burner ageing methods take less time, manpower and consumable cost than traditional vehicle ageing, but there is a certain deviation from the actual vehicle ageing effect.

Keywords: gasoline vehicle; TWC; three-way catalyst; Arrhenius; rapid ageing; vehicle ageing; engine bench ageing; burner ageing.

DOI: 10.1504/IJVP.2020.109179

International Journal of Vehicle Performance, 2020 Vol.6 No.3, pp.277 - 293

Received: 09 Nov 2019
Accepted: 18 Dec 2019

Published online: 15 Aug 2020 *

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