Simulation and design of a kit for the electrification of a light tricycle truck

Pugi, Luca; Giglioli, Matteo; Berzi, Lorenzo; Locorotondo, Edoardo; Pretto, Alessandro

doi:10.1504/ijhvs.2020.10022321

Cited by 1 publication

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“…(3) If the accumulator is neither fully discharged nor fully charged, the air pressure is identical to the hydraulic pressure: P gas = P out (14) where P out is the output pressure of the accumulator.…”

Section: Hydraulic Accumulatormentioning

confidence: 99%

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Research on the Starting Acceleration Characteristics of a New Mechanical–Electric–Hydraulic Power Coupling Electric Vehicle

et al. 2020

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To simplify the layout of a purely electric vehicle transmission system and improve the acceleration performance of the vehicle, this paper utilizes the characteristics of the large torque of a hydraulic transmission system and proposes a new mechanical–electric–hydraulic dynamic coupling drive system (MEH-DCDS). It integrates the traditional motor and the swashplate hydraulic pump/motor into one, which can realize the mutual conversion between the mechanical energy, electrical energy, and hydraulic energy. This article explains its working principle and structural characteristics. At the same time, the mathematical model for the key components is established and the operation mode is divided into various types. Based on AMESim software, the article studies the dynamic characteristics of the MEH-DCDS, and finally proposes a method that combines real-time feedback of the accumulator output torque with PID control to complete the system simulation. The results show that the MEH-DCDS vehicle has a starting time of 4.52 s at ignition, and the starting performance is improved by 40.37% compared to that of a pure motor drive system vehicle; after a PID adjustment, the MEH-DCDS vehicle’s starting time is shortened by 1.04 s, and the acceleration performance is improved by 23.01%. The results indicated the feasibility of the system and the power performance was substantially improved. Finally, the system is integrated into the vehicle and the dynamic performance of the MEH-DCDS under cycle conditions is verified by joint simulation. The results show that the vehicle is able to follow the control speed well when the MEH-DCDS is loaded on the vehicle. The state-of-charge (SOC) consumption rate is reduced by 20.33% compared to an electric vehicle, while the MEH-DCDS has an increased range of 45.7 m compared to the EV. This improves the energy efficiency and increases the driving range.

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Section: Hydraulic Accumulatormentioning

confidence: 99%

“…Pretto et al [14] presented a simple and inexpensive electrification device for the problem of low profitability of light duty tricycles. The solution discusses the profitability of light truck electrification in terms of energy prices in different countries, which allows to upgrade existing vehicles with limited investment.…”

Section: Introductionmentioning

confidence: 99%