Nearly-Zero Emissions Diesel Engines as a Solution for the Urban Work Machine

Ehrly, Markus; Ghetti, Stefano; Kossioris, Theodoros; Schaub, Joschka

doi:10.1007/s41321-021-0465-8

Cited by 1 publication

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“…In a 1000-s Artemis Urban Cycle cold start trial, the same device reduced NOx emissions by 67% while being electrically heated for the first 400 and the last 300 s. Similar to this, Menne C. et al [42] use an electric heater before the DOC, with a considerable delay in the SCR warming process towards the end of the aftertreatment system. The study by Ehrly M. et al [43] also employs an arrangement of an electric heater upstream, and their purification unit is set up with a tightly connected, small-sized SCR in consideration of the lag in SCR warming. After the cold start, the catalyst can light off quickly with the help of electric heating, which significantly lowers the NOx emissions from the NRTC (non-road transient cycle) test.…”

Section: Application To Diesel Vehiclesmentioning

confidence: 99%

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Li,

Xiao,

Wang

et al. 2024

Processes

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Motor vehicle exhaust is an important cause of atmospheric pollution. Nowadays, mainstream exhaust emission aftertreatment technologies, such as TWC, DOC, SCR, and DPF, usually require sufficient temperature to perform good purification or maintain normal working conditions. Compared with exhaust gas heating technologies such as engine enrichment and fuel injection, electric heating technology can quickly increase the temperature of exhaust gas aftertreatment devices without adverse effects on engine operating conditions. This article introduces the research and progress of electric heating technology combined with traditional aftertreatment devices on major types of vehicles, such as gasoline vehicles, diesel vehicles, motorcycles, and hybrid vehicles, to improve exhaust purification efficiency and its accompanying fuel consumption impact. In addition, the common structure and characteristics of electric heaters, as well as the current status and development trend of electric heating unit technologies such as electric heating power supply are introduced.

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Section: Application To Diesel Vehiclesmentioning

confidence: 99%