Fuel efficiency optimisation based on boosting control of the particulate filter active regeneration at high driving altitude

Piqueras, Pedro; Burke, Richard; Sanchis, Enrique José; Diesel, Bárbara

doi:10.1016/j.fuel.2022.123734

Cited by 13 publications

(5 citation statements)

References 48 publications

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“…Based on some special working conditions, regeneration strategies are also different. In the regeneration strategy of high-altitude areas, Piqueras et al (Piqueras et al 2022 ) had considered the decrease of inlet temperature with the increase of altitude and the increase of exhaust mass flow and had developed a new injection strategy during regeneration process. In addition to the increase of fuel volume, PI was divided into two events: The first PI was delayed relative to the normal mode.…”

Section: Regeneration Management Of Diesel Particulate Filtermentioning

confidence: 99%

“…Excellent pressure drop models have been able to reduce the estimation error to less than 5% (Wang et al 2021a ). In fact, the uncertainty of real working conditions (such as low pressure drop in high altitude areas (Piqueras et al 2022 )) may lead to ECU misjudgment. In addition, the DPF regeneration is no longer a problem of a single device, but a timing cycle problem that affects the whole vehicle.…”

Section: Regeneration Management Of Diesel Particulate Filtermentioning

confidence: 99%

See 1 more Smart Citation

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Zhang

Dong

Lan

et al. 2023

Environ Sci Pollut Res

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Diesel particulate filter (DPF) is considered as an effective method to control particulate matter (PM) emissions from diesel engines, which is included in the mandatory installation list by more and more national/regional laws and regulations, such as CHINA VI, Euro VI, and EPA Tier3. Due to the limited capacity of DPF to contain PM, the manufacturer introduced a method of treating deposited PM by oxidation, which is called regeneration. This paper comprehensively summarizes the most advanced regeneration technology, including filter structure, new catalyst formula, accurate soot prediction, safe and reliable regeneration strategy, uncontrolled regeneration and its control methods. In addition, due to the change of working conditions in the regeneration process, the additional emissions during regeneration are discussed in this paper. The DPF is not only the aftertreatment device but also can be combined with diesel oxidation catalyst (DOC), selective catalytic reduction (SCR) and exhaust recirculation (EGR). In addition, the impact of DPF modification on the original system of some old models has been reasonably discussed in order to achieve emission targets.

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Section: Regeneration Management Of Diesel Particulate Filtermentioning

confidence: 99%

Section: Regeneration Management Of Diesel Particulate Filtermentioning

confidence: 99%

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Zhang

Dong

Lan

et al. 2023

Environ Sci Pollut Res

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“…The European energy policies for air quality protection has led to the inclusion of type-approval real driving emission (RDE) tests for passenger car and light duty vehicles that must consider the ambient temperature and driving altitude as boundary conditions (Piqueras et al, 2022). The latest China VI emission standard of light-duty diesel vehicles call for a reduction of 86% for nitrogen oxides (NO x ) emission, and the RDE tests extended ambient conditions to 2,400 altitude (Zhang H et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on effects of fuel injection and intake parameters on combustion and performance of a turbocharged diesel engine at different altitudes

Wan

Huang²,

Shen³

et al. 2023

Front. Energy Res.

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Matching characteristics between fuel injection and intake control parameters significantly affect overall performances in diesel engine at variable altitudes. Prior to optimizing the control parameters of diesel engines operating at high altitudes areas, there is a necessity to identify the influence law of fuel injection and intake parameters on engine performance. This study focused on the effects of main injection timing (MIT), fuel injection pressure (FIP), EGR rate, and variable nozzle turbocharger (VNT) opening on the combustion, performances and NOx and smoke emissions in a turbocharged diesel engine at different altitudes (2000, 1,000, and 0 m). Strategies for optimization of engine performance and the coupling relationship between these parameters were analyzed. The results showed that as the altitude increased from 0 m to 2000 m, the engine torque dropped by 2.9%, the BSFC increased by 2.6%, the NOx emissions reduced by 11.8%, and the opacity smoke increased by 26.2%. The effects of MIT, FIP, EGR rate and VNT opening on engine performances were more significant at high altitudes. As the MIT was advanced at 2000 m altitude, the engine torque increased by 5.6%, the BSFC reduced by 5.9%, the opacity smoke decreased by 55%, while the NOx emissions increased by 54%%. Advance the injection timing properly can overcome the altitude effect on engine power. With the FIP increased from 105 to 130 MPa at 2000 m, the engine torque reduced by 1.7%, the BSFC increased by 1.6%, the opacity smoke dropped by 44.5%, and the NOx emissions increased by 17.5%. When the EGR rate increases by 5%, the NOx emission reduces by 16.4%,17.9 and 21.9 respectively at 0, 1,000 and 2000 m altitude. The EGR rate should be properly reduced to obtain the recovery of engine power at plateau. As the VNT vane opening decreased from 40% to 20%, the NOx emission increase by 9.4% and 9.9% at 0 m and 1,000 m respectively, and it reduces by 3.9% at 2000 m, while the opacity smoke reduces by 38.9% at different altitudes. The optimization of VNT vane opening requires a balance between combustion performance and pumping losses. The multi-objective collaborative optimization technique should be applied to optimize these parameters to help improve engine efficiency and emissions at high altitudes.

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“…This type of ATS makes it possible to eliminate gaseous emissions produced during combustion, such as NOx, HC, and CO, and some secondary gaseous emissions. Otherwise, for Submitted to Acoustics Australia the elimination of particulate material (PM), particulate filters (PF) [5] are commonly used, both in CI engines [6] and Direct Injection SI (DI-SI) engines [7]. In both cases, PF can also be impregnated with catalyst, either to facilitate its regeneration or to provide it with the function of removing gaseous pollutants [8].…”

Section: Introductionmentioning

confidence: 99%

“…The ATS layout in the exhaust line is usually conditioned by the ideal operating temperatures and the possible interactions between the different ATS. This is the case of the diesel oxidation catalysts (DOC) and the diesel particulate filter (DPF), which are usually placed together in a single canning [6]. This is done because the most common regeneration method is late fuel post-injections, which involves injecting a quantity of fuel in single or separate portions after the main injection during the expansion stroke [9].…”

Section: Introductionmentioning

confidence: 99%

On the Applicability of Cold Acoustic Measurements to High-Amplitude Hot Pulsating Flows

et al. 2022

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The experimental characterization of the acoustic characteristics of engine exhaust devices is usually carried out through measurements in cold conditions, due to the intrinsic difficulties associated with proper temperature control in an acoustic rig. While those measurements may be sufficiently indicative for the cold end of the exhaust (the silencing elements) their significance for the hot end (the aftertreatment system) is more doubtful, as a result of the high temperatures and, eventually, the higher amplitude of pressure waves acting on the system. In this paper, a direct assessment is provided on the significance of acoustic measurements in cold conditions for representing the actual behaviour of an aftertreatment system in a hot pulsating, engine-like flow. Making use of wave decomposition techniques, the measured characterization was convoluted with the hot-flow excitation and the device responses were directly compared. The results indicate that, while it is not possible to fully reproduce the behaviour observed in hot pulsating flow, the tendencies are reproduced, at least qualitatively. In particular, the effect of soot loading is fairly reproduced.

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Fuel efficiency optimisation based on boosting control of the particulate filter active regeneration at high driving altitude

Cited by 13 publications

References 48 publications

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Diesel particulate filter regeneration mechanism of modern automobile engines and methods of reducing PM emissions: a review

Experimental investigation on effects of fuel injection and intake parameters on combustion and performance of a turbocharged diesel engine at different altitudes

On the Applicability of Cold Acoustic Measurements to High-Amplitude Hot Pulsating Flows

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