Application study on a control strategy for a hybrid electric public bus

Wang, B. H.; Luo, Y. G.

doi:10.1007/s12239-011-0018-8

Cited by 10 publications

(2 citation statements)

References 2 publications

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“…The previously performed studies also indicate a significant role of EMS control in various HEVs [8][9][10] not only for improving fuel consumption, but also for preserving battery charge balance. Among various EMSs, the Equivalent Consumption Minimization Strategy (ECMS) has proven as an effective approach [11,12]. Being derived based on Hamiltonian function of optimal control theory [13] and inspired from Pontryagin's minimum principle [14], ECMS considers the equivalent fuel consumption as a quantitative measure to decide on power sharing of energy sources in HEVs.…”

Section: Introductionmentioning

confidence: 99%

Energy Management Strategy Optimization for Application of an Electrical Variable Transmission System in a Hybrid Electric City Bus

Vafaeipour

Baghdadi

Tran

et al. 2020

2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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The present study assesses utilization of an Electrical Variable Transmission system for application in the drivetrain of a hybrid electric city bus. To this end, first the corresponding modeling for a hybrid bus topology is performed in presence of a gearbox. Secondly, two optimization-based energy management strategies (EMS) coupled into a Rule-based EMS are examined. The corresponding investigations are performed towards achieving optimized EMSs for efficient power distribution between the drivetrain components. The main outcome of this research addresses improving the fuel consumption while sustaining the State of Charge of the battery for the studied city bus.

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Section: Introductionmentioning

confidence: 99%

Energy Management Strategy Optimization for Application of an Electrical Variable Transmission System in a Hybrid Electric City Bus

Vafaeipour

Baghdadi

Tran

et al. 2020

2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

View full text Add to dashboard Cite

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“…It relies on the transmission system to provide the resistance which is needed for the deceleration of the vehicle and converts the kinetic energy of the vehicle into electric energy to be stored in the energy storage components. 5 – 7 The energy recycling during the braking process is very significant, which can improve the energy utilization efficiency of the vehicle and increase the cruising range. 8 , 9…”

Section: Introductionmentioning

confidence: 99%

Research on braking energy recovery strategy of electric vehicle based on ECE regulation and I curve

Feng

2019

Science Progress

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Electric vehicles can convert the kinetic energy of the vehicle into electric energy for recycling. A reasonable braking force distribution strategy is the key to ensure braking stability and the energy recovery rate. For an electric vehicle, based on the ECE regulation curve and ideal braking force distribution (I curve), the braking force distribution strategy of the front and rear axles is designed to study the braking energy recovery control strategy. The fuzzy control method is adopted while the charging power limit of the battery is considered to correct the regenerative braking torque of the motor, the ratio of the regenerative braking force of the motor to the front axle braking force is designed according to different braking strengths, then the braking force distribution and braking energy recovery control strategies for regenerative braking and friction braking are developed. The simulation model of combined vehicle and energy recovery control strategy is established by Simulink and Cruise software. The braking energy recovery control strategy of this article is verified under different braking conditions and New European Driving Cycle conditions. The results show that the control strategy proposed in this article meets the requirements of braking stability. Under the condition of initial state of charge of 75%, the variation of state of charge of braking control strategy in this article is reduced by 8.22%, and the state of charge of braking strategy based on I curve reduces by 9.12%. The braking force distribution curves of the front and rear axle are in line with the braking characteristics, can effectively recover the braking energy, and improve the battery state of charge. Taking the using range of 95%–5% of battery state of charge as calculation target, the cruising range of vehicle with braking control strategy of this article increases to 136.64 km, which showed that the braking control strategy in this article could increase the cruising range of the electric vehicle.

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