Multi-factor integrated parametric design of power-split hybrid electric bus

Song, Dafeng; Yang, Nannan; Zhang, Chang; Wang, Junnian; Wang, Jixin; Wang, Qingnian

doi:10.1016/j.jclepro.2015.07.034

Cited by 22 publications

(7 citation statements)

References 13 publications

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“…However, these vehicles consume excessive fuel. Therefore, it is necessary to find a method of reducing the fuel consumption and emission [3,4]. Many researchers have focused on the different parts of construction vehicles to improve the fuel economy.…”

Section: Introductionmentioning

confidence: 99%

Optimal matching between a diesel engine and a PRHTS transmission

Wang

Sun

2017

J Braz. Soc. Mech. Sci. Eng.

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Section: Introductionmentioning

confidence: 99%

Optimal matching between a diesel engine and a PRHTS transmission

Wang

Sun

2017

J Braz. Soc. Mech. Sci. Eng.

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“…The vehicle gearbox utilizes a planetary gear structure. Its parameter setting and coupling relationship map refer to [36,37].…”

Section: Planetary Gear Set and Vehicle Modelmentioning

confidence: 99%

Modeling and Integrated Optimization of Power Split and Exhaust Thermal Management on Diesel Hybrid Electric Vehicles

Zhao

Xie

et al. 2021

Energies

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To simultaneously achieve high fuel efficiency and low emissions in a diesel hybrid electric vehicle (DHEV), it is necessary to optimize not only power split but also exhaust thermal management for emission aftertreatment systems. However, how to coordinate the power split and the exhaust thermal management to balance fuel economy improvement and emissions reduction remains a formidable challenge. In this paper, a hierarchical model predictive control (MPC) framework is proposed to coordinate the power split and the exhaust thermal management. The method consists of two parts: a fuel and thermal optimized controller (FTOC) combining the rule-based and the optimization-based methods for power split simultaneously considering fuel consumption and exhaust temperature, and a fuel post-injection thermal controller (FPTC) for exhaust thermal management with a separate fuel injection system added to the exhaust pipe. Additionally, preview information about the road grade is introduced to improve the power split by a fuel and thermal on slope forecast optimized controller (FTSFOC). Simulation results show that the hierarchical method (FTOC + FPTC) can reach the optimal exhaust temperature nearly 40 s earlier, and its total fuel consumption is also reduced by 8.9%, as compared to the sequential method under a world light test cycle (WLTC) driving cycle. Moreover, the total fuel consumption of the FTSFOC is reduced by 5.2%, as compared to the fuel and thermal on sensor-information optimized controller (FTSOC) working with real-time road grade information.

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“…Construction vehicles play a crucial role in improving the operating efficiency and quality of projects and reducing labor and total project costs [1,2]. However, these vehicles consume a substantial quantity of fuel [3,4]. Automatic transmissions have lower efficiency compared with manual transmissions [5].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic analysis of power reflux hydraulic transmission system

Wang¹,

Ge²,

Jiang³

2023

J. vibroeng.

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Power reflux hydraulic transmission system (PRHTS), which is a recently introduced continuously variable transmission system, enables the improvement of fuel economy of construction vehicles. For investigating the nonlinear dynamic characteristics of PRHTS, its nonlinear dynamic model is established by merging the dynamic models of a planetary gear train and torque converter. A dynamical model of the planetary gear train reveals the parameters of mesh damping, time-varying mesh stiffness, and transmission error. The nonlinear dynamic equations of the PRHTS are solved using the fourth-order Runge-Kutta method. The dynamic orbits of the system are observed through bifurcation diagrams, which use the internal excitation frequency and meshing damping ratios, both of which are dimensionless, as control parameters. Numerical examples show the dynamic evolution mechanism involving one-period motion, multi-periodic motion, quasi-periodic motion, and chaotic motion. The onset of chaotic motion is identified from bifurcation diagrams, dynamic trajectories, phase plane diagram, and Poincaré maps of the PRHTS. The simulation results provide an understanding of the operating conditions under which undesirable dynamic motion occurs in PRHTS and serve as invaluable information for effective dynamic design of PRHTS.

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Multi-factor integrated parametric design of power-split hybrid electric bus

Cited by 22 publications

References 13 publications

Optimal matching between a diesel engine and a PRHTS transmission

Optimal matching between a diesel engine and a PRHTS transmission

Modeling and Integrated Optimization of Power Split and Exhaust Thermal Management on Diesel Hybrid Electric Vehicles

Nonlinear dynamic analysis of power reflux hydraulic transmission system

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