Torsional vibration-considered energy management strategy for power-split hybrid electric vehicles

Wang, Rui; Xia, Jiaqi; Xu, Xing; Cai, Yingfeng; Ni, Shaoyong; Que, Hongbo

doi:10.1016/j.jclepro.2021.126399

Cited by 18 publications

(3 citation statements)

References 37 publications

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“…The above analysis obtains the relationship between SOC, equivalence factor, and power distribution shown in Figure 11. The mathematical model [36] of equivalent fuel consumption is: The mathematical model [36] of equivalent fuel consumption is: (10) where m e is the engine fuel consumption; m b is the battery equivalent fuel consumption; η b is the charging or discharging efficiency of the battery; Q l is the lower heating value of the fuel, s(t) is the equivalence factor which can be calculated by the following equation [37]:…”

Section: Optimization Strategy With Minimal Equivalent Fuel Consumptionmentioning

confidence: 99%

Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System

Zhu

Yang²,

Wang³

et al. 2022

Agriculture

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Tractors are usually applied in field operations, road transport, and other operations. Modern agriculture has higher design requirements for tractor powertrains due to the complicated working environments and various operations. To meet the driving requirements of the tractor under multiple operations, a mechanic-electronic-hydraulic powertrain system (MEH-PS) for tractors has been designed according to the characteristics of the hydro-mechanical composite transmission and electromechanical hybrid system. The principle of multiple driven and transmission modes of MEH-PS are introduced, the speed regulation characteristic curve of hydro-mechanical transmission (HMT) is given, and the related power element model, tractor model, and efficiency model are established. The HMT optimal economy transmission ratio control strategy and hybrid rule-based optimization energy management strategy were developed. Take three typical tractor operations for analysis: ploughing, harvesting, and transport. The results show that the engine operating points are mainly distributed in the higher load area, the tractor maintains high system efficiency, and the relative error between simulated and tested fuel consumption is within 5%, which further proves the reliability of the model. The solution also showed lower fuel consumption in all three operations compared to DLG’s announced PowerShift tractors and CVT tractors. Thus, the powertrain system can meet the tractor’s drive requirements under complex operating conditions and maintain high efficiency and is therefore suitable for tractors that need to operate frequently in the field and on the road.

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Section: Optimization Strategy With Minimal Equivalent Fuel Consumptionmentioning

confidence: 99%

Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System

Zhu

Yang²,

Wang³

et al. 2022

Agriculture

Self Cite

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“…Figure 10 describes the SOC change for different EF and power. The power is obtained by setting the vehicle speed to be 50 km/h and the acceleration to be 0–1.2 m/s 2 . It can be seen that when the power is constant, the battery SOC tends to increase with the increase of the EF.…”

Section: Adaptive Energy Management Strategymentioning

confidence: 99%

“…In particular, the power split configurations with planetary gearsets and dual-motor driving, such as the dual-mode configuration of GM and the hybrid synergy drive of Toyota Prius, have gained great interests because of the torque and speed decoupling between the engine and wheels. 2,3 Besides, by integrating clutches and brakes, a wealth of operation modes can be realized. 4 The economic operation of the HEV is greatly affected by the energy management strategy.…”

Section: Introductionmentioning

confidence: 99%

Adaptive energy management strategy for hybrid electric vehicle based on power prediction

Shi

XiangWei

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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The advantages of hybrid electric vehicle (HEV) in energy-saving strongly rely on the energy management strategy. Equivalent consumption minimization strategy (ECMS) is one kind of well-known instantaneous strategies with the capability of online application. Due to the complicated driving conditions, there are some limitations for the application of ECMS with fixed equivalence factor (EF). Therefore, the adaptive ECMS (A-ECMS) based on the average predicted power is proposed and studied. The average power is predicted by a polynomial function with the average velocity and average acceleration as prediction inputs. The coefficients of the prediction model are updated by the recursive least squares algorithm. By investigating the impacts of different power requirements and EF on the battery charging/discharging behaviors, the explicit expression model of adaptive EF based on the average predicted power and battery SOC is established. The particle swarm optimization (PSO) method is further adopted to derive the parameters of the explicit expression model. Simulation results demonstrate that when the average power is higher than 0.5 kW, the prediction accuracy of the proposed power prediction model is higher than 91%. Compared with the constant ECMS which uses the corresponding optimal EF under different test cycles, although the equivalent fuel economy with the proposed A-ECMS slightly deteriorates, most of the deterioration is smaller than 5%, while the battery charging sustainability for all test cycles are well maintained. The proposed strategy ensures good cycle adaptability in achieving good fuel economy and battery charging sustainability.

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Research on Active Control of Vibration of Transmission System of Power-Split HEV

Yan,

Liu,

Yan

et al. 2024

Lecture Notes in Mechanical Engineering

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Torsional vibration-considered energy management strategy for power-split hybrid electric vehicles

Cited by 18 publications

References 37 publications

Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System

Energy Saving Performance of Agricultural Tractor Equipped with Mechanic-Electronic-Hydraulic Powertrain System

Adaptive energy management strategy for hybrid electric vehicle based on power prediction

Research on Active Control of Vibration of Transmission System of Power-Split HEV

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