Abstract
Based on two different components of lubricating oil, this paper analyzes the filtration efficiency, ash accumulation speed, vehicle WLTC emissions, fuel consumption, and CT scan on a National V emission standard engine equipped with a cGPF aftertreatment device. The results show that both oils can ensure that cGPF meets the emission and fuel consumption requirements of National VI emission standard, but oil F accumulates ash quickly before the ash accumulation of 33% in the discharge, which has a significant effect on PN reduction, and oil C accumulates ash faster after the accumulation of 33%. The effect of reducing the PN is accelerated. Oil F is based on a full calcium detergent system, which has a trend of first to slower for the collection efficiency; while oil C is based on a mixed Ca/Mg detergent system, which has a trend of first slowing and then fasting the collection efficiency. The critical point is generally about 33% of accumulated ash. For oil F, less ash is deposited in the front and middle of the cGPF, while more ash tends to deposit towards the outlet. In contrast, cGPF aged with Oil C has a relatively uniform deposition distribution.
Highlights
IntroductionWith the continuous growth of population and energy consumption, emission control has become an important measure of ecological environment management[1].As the latest emission regulations tighten and the limits on automotive pollutants continue to decrease, GPF has become an effective technology for controlling exhaust pollutants[2]
CGPF aged with oil C have a relatively uniform deposition distribution
Based on two different components of lubricating oil, this paper analyzes the filtration efficiency, ash accumulation speed, vehicle WLTC emission, fuel consumption and CT scanning, and draws the following conclusions: (1) The filtration efficiency of oil F will gradually reach 98%, and the filtration efficiency of oil C is unstable; (2) Both types of lubricants can ensure that cGPF meet the emission and fuel consumption requirements of National VI emission standard
Summary
With the continuous growth of population and energy consumption, emission control has become an important measure of ecological environment management[1].As the latest emission regulations tighten and the limits on automotive pollutants continue to decrease, GPF has become an effective technology for controlling exhaust pollutants[2]. The quality of lubricating oil in the engine has an important influence on the exhaust performance, economy and durability of the vehicle[3].At present, studies have shown that the composition of lubricating oil additives will have a certain impact on the performance of cGPF. By studying the effect of different lubricating oil formulations on accumulated ash, this paper explores the effect of different lubricating oil formulations on the adaptability of GPF aftertreatment
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