An Optimal Power Management Strategy for Hydraulic Hybrid Output Coupled Power-Split Transmission

Kumar, Rakesh; Ivantysynova, Monika

doi:10.1115/dscc2009-2780

Cited by 15 publications

(16 citation statements)

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“…The look forward simulation method [5][6][7][8][9] is applied. The system simulation modeling diagram is shown as Figure 9.…”

Section: A System Modeling Conceptmentioning

confidence: 99%

Research on modeling, simulation and control of new type power split hybrid powertrain

Wang

2011

Proceedings of 2011 International Conference on Electronic &Amp; Mechanical Engineering and Information Technology

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In order to satisfy the growing demand of vehicle new energy and energy-saving technologies, much concepts have emerged, including electric driving, hybrid powertrain and fuel cell electric vehicle, etc. This study targets a new type of hydraulic hybrid powertrain of a series-parallel structure. The look-forward simulation method is used to establish dynamic mathematical model of the provided hybrid powertrain. Based stop-and-go duty cycle, the economy of vehicle with hybrid powertrain is studied based on the dynamic simulation model.

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“…The look forward simulation method [5][6][7][8][9] is applied. The system simulation modeling diagram is shown as Figure 9.…”

Section: A System Modeling Conceptmentioning

confidence: 99%

Research on modeling, simulation and control of new type power split hybrid powertrain

Wang

2011

Proceedings of 2011 International Conference on Electronic &Amp; Mechanical Engineering and Information Technology

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“…Filipi et al (2004) and Wu et al (2004) proposed tripoptimal strategies solved via DP to a parallel hydraulic hybrid truck. Kumar and Ivantysynova (2009) presented results from applications of DP for a power-split hydraulic hybrid vehicle. There has not been any reported work to date that details the formulation and application of instantaneous optimisation to any configuration of hydraulic hybrid drives.…”

Section: Introductionmentioning

confidence: 99%

“…However, extensive trial and error is required to achieve the optimal system-level performance beyond individual component (e.g., ICE) efficiency. The second category of strategies explicitly considers system-level optimisation over a specified time horizon or trip length for the dynamic allocation of the split of demanded power between the on-board sources in a manner that minimises the total fuel use (Daowei and Hui, 2008;Kumar and Ivantysynova, 2009;Lin et al, 2003a;Liu and Peng, 2006;Wu et al, 2004). Solving the optimisation problems involve computational intensive DP algorithms.…”

Section: Introductionmentioning

confidence: 99%

Power management strategies for a series hydraulic hybrid drivetrain

Molla¹,

Ayalew

2011

IJPT

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This paper presents implementation details for two optimisation-based energy management strategies for a series hydraulic hybrid drivetrain. The first strategy is a causal, real-time implementable instantaneous consumption minimisation strategy that requires minimal information about future loads on the system. The second strategy is a non-causal but formally trip-optimal power allocation scheme involving Dynamic Programming (DP). Both strategies are applied to a medium duty urban truck featuring independent hydrostatic wheel drives and fuel economy results are compared to those obtained with a commonly cited real-time implementable, rule-based power management strategy.

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“…Recent research topics for power-split HHVs include different areas, such as dynamic analysis and controllers for passenger vehicles [21][22][23][24][25], experimental studies on hardware in the loop tests [26][27][28], concept car demonstrations, such as Hybrid Air by Peugeot [29], and system optimizations and optimal architecture studies for specific applications [10]. A recent study investigated the optimization system of a power-split HHV and reported energy savings up to 35% in comparison to a power-split hydrostatic transmission (HST) without considering engine management [30].…”

Section: Introductionmentioning

confidence: 99%

System Characteristics Analysis for Energy Management of Power-Split Hydraulic Hybrids

Kwon

Ivantysynova

2020

Energies

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Hydraulic hybrid powertrains provide an opportunity for specific applications, such as heavy-duty vehicles based on high-power density, which has not been included in other types of hybrid powertrains. Among the various architectures of hybrid vehicles, power-split hybrids have a greater possibility of producing better fuel efficiency than other hybrid architectures. This study analyzed the possible energy-saving characteristics of power-split hydraulic hybrid vehicles (HHVs); this has not been comprehensively described in previous studies. A typical configuration of power-split HHVs was modeled with the FTP-72 driving cycle using a novel simulation method that considered the dynamic and thermal behaviors together. The characteristics were analyzed in comparison to a power-split hydrostatic transmission (HST), which is designed with the same conditions except for hydraulic energy storage. The power-split HHV not only has a better fuel efficiency, but it also shows system energy-saving characteristics. The power-split HHV has more chances for engine idling, which is directly related to fuel consumption savings due to engine stop. Additionally, more engine idling time enables the system to operate in a more efficient area on the engine map by load leveling. The results for the system temperature show that the power-split HHV offers the possibility to deliver better thermal management because it prevents the waste of braking power, which is especially crucial for hydraulic systems in comparison to other power systems such as electric or mechanical power systems. The ease of thermal management results in less energy consumption for cooling down the system temperature by minimizing the cooling system, as well as in a better thermal stability for the hydraulic system. The power-split HHV characteristics analyzed in this study can be used to design and organize the system control logic while developing power-split HHVs.

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An Optimal Power Management Strategy for Hydraulic Hybrid Output Coupled Power-Split Transmission

Cited by 15 publications

References 0 publications

Research on modeling, simulation and control of new type power split hybrid powertrain

Research on modeling, simulation and control of new type power split hybrid powertrain

Power management strategies for a series hydraulic hybrid drivetrain

System Characteristics Analysis for Energy Management of Power-Split Hydraulic Hybrids

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