Impact of Duty Cycle on Wear Progression in Variable-displacement Vane Oil Pumps

Doikin, Aleksandr; Zadeh, Esmaeil Habib; Campean, Felician; Priest, Martin; Brown, Andrew; Sherratt, Andrew

doi:10.1016/j.promfg.2018.10.170

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…Arata et al [59] claimed that vane oil pumps would become the standard in the future due to their significant role in driving torque reduction, which has been demonstrated in particular during engine cold starts. Doikin et al [60] presented a life prediction model for the advancement of online health monitoring and diagnostics of the oil pumps, based on ECU data-driven analysis; this revealed the factors resulting in high cycle fatigue, oil aeration, and pump degradation, providing an important direction of further design research for VDOPs.…”

Section: Improvement Of Lubricants Systemmentioning

confidence: 99%

A Review of Energy Loss Reduction Technologies for Internal Combustion Engines to Improve Brake Thermal Efficiency

Wang

Shuai

et al. 2021

Energies

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Today, the problem of energy shortage and climate change has urgently motivated the development of research engaged in improving the fuel efficiency of internal combustion engines (ICEs). Although many constructive alternatives—including battery electric vehicles (BEVs) and low-carbon fuels such as biofuels or hydrogen—are being put forward, they are starting from a very low base, and still face significant barriers. Nevertheless, 85–90% of transport energy is still expected to come from combustion engines powered by conventional liquid fuels even by 2040. Therefore, intensive passion for the improvement of engine thermal efficiency and decreasing energy loss has driven the development of reliable approaches and modelling to fully understand the underlying mechanisms. In this paper, literature surveys are presented that investigate the relative advantages of technologies mainly focused on minimizing energy loss in engine assemblies, including pistons and rings, bearings and valves, water and oil pumps, and cooling systems. Implementations of energy loss reduction concepts in advanced engines are also evaluated against expectations of meeting greenhouse gas (GHG) emissions compliance in the years to come.

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Section: Improvement Of Lubricants Systemmentioning

confidence: 99%

A Review of Energy Loss Reduction Technologies for Internal Combustion Engines to Improve Brake Thermal Efficiency

Wang

Shuai

et al. 2021

Energies

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“…A common problem across complex systems is that the "ground" parameter that is associated with the component degradation cannot be directly monitored (see for example the discussion in Doikin et al (2018) based on a case study on an engine oil pump). This affects the effectiveness of model based prognostics approaches to estimate the state of health of the component.…”

Section: Limitation Of Sensing Datamentioning

confidence: 99%

“…While such functional performance monitoring devices provide data that can be used to diagnose the state of health of physical components within the system (e.g. Doikin et al (2018) discussed the use of oil gallery pressure monitoring to diagnose the state of health of the oil pump), the problem is that system functional monitoring sensors confound the effect of many underpinning component root causes (e.g. the oil gallery pressure is also influenced by the quality of oil, which is also subject to degradation), so it is often very difficult to derive accurate state observing variables and algorithms.…”

Section: Limitation Of Sensing Datamentioning

confidence: 99%

Automotive IVHM: Towards Intelligent Personalised Systems Healthcare

Campean

Neagu

Doikin

et al. 2019

Proc. Int. Conf. Eng. Des.

Self Cite

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Underpinned by a contemporary view of automotive systems as cyber-physical systems, characterised by progressively open architectures increasingly defined by their interaction with the users and the smart environment, this paper provides a critical and up-to-date review of automotive Integrated Vehicle Health Management (IVHM) systems. The paper discusses the challenges with prognostics and intelligent health management of automotive systems, and proposes a high-level framework, referred to as the Automotive Healthcare Analytic Factory, to systematically collect and process heterogeneous data from across the product lifecycle, towards actionable insight for personalised healthcare of systems.

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“…The oil pump is an actuator between the engine and the electric motor and supplies the hydraulic fluid necessary for the transmission [6,7]. However, conventional oil pumps fail to deliver the required flow rate under operating conditions, thereby decreasing the vehicle's fuel efficiency [8].…”

Section: Introductionmentioning

confidence: 99%

Robust Design Optimization with Penalty Function for Electric Oil Pumps with BLDC Motors

Yoon

Baek

2019

Energies

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In this paper, we propose and evaluate a robust design optimization (RDO) algorithm for the shape of a brushless DC (BLDC) motor used in an electric oil pump (EOP). The components of the EOP system and the control block diagram for driving the BLDC motor are described. Although the conventional deterministic design optimization (DDO) method derives an appropriate combination of design goals and target performance, DDO does not allow free searching of the entire design space because it is confined to preset experimental combinations of parameter levels. To solve this problem, we propose an efficient RDO method that improves the torque characteristics of BLDC motors by considering design variable uncertainties. The dimensions of the stator and the rotor were selected as the design variables for the optimal design and a penalty function was applied to address the disadvantages of the conventional Taguchi method. The optimal design results obtained through the proposed RDO algorithm were confirmed by finite element analysis, and the improvement in torque and output performance was confirmed through experimental dynamometer tests of a BLDC motor fabricated according to the optimization results.

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Impact of Duty Cycle on Wear Progression in Variable-displacement Vane Oil Pumps

Cited by 8 publications

References 11 publications

A Review of Energy Loss Reduction Technologies for Internal Combustion Engines to Improve Brake Thermal Efficiency

A Review of Energy Loss Reduction Technologies for Internal Combustion Engines to Improve Brake Thermal Efficiency

Automotive IVHM: Towards Intelligent Personalised Systems Healthcare

Robust Design Optimization with Penalty Function for Electric Oil Pumps with BLDC Motors

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