Optimization design and performance comparison of different powertrains of electric vehicles

Wei, Du; Zhao, Sheng; Jin, Liwen; Gao, Jingzhou; Zheng, Zhenhao

doi:10.1016/j.mechmachtheory.2020.104143

Cited by 28 publications

(6 citation statements)

References 27 publications

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“…Meanwhile, in [78], three configurations of two motors EV powertrain without multispeed transmission were considered; configuration for torque coupling (Figure 15a), configuration for speed coupling (Figure 15b), and a configuration for both torque and speed couplings (Figure 15c). Therefore, this configuration offered significant improvement in driving modes flexibility.…”

Section: Multi-motor Configurationmentioning

confidence: 99%

“…With the difference of only 0.63% in terms of efficiency gain between the first and the third configurations, it was logical to choose the first configuration for an actual implementation. Therefore, in the future work for [78], more studies can be carried out to compare the driving and gearshifting performance of these configurations so that more aspects can be evaluated. Next, in a latest work described by [79], a two-motor configuration based on a Simpson planetary gearset was proposed in a two-motor EV powertrain configuration.…”

Section: Multi-motor Configurationmentioning

confidence: 99%

“…Next, in a latest work described by [79], a two-motor configuration based on a Simpson planetary gearset was proposed in a two-motor EV powertrain configuration. Unlike the configuration described in [78], this proposal provided two gear ratios in the powertrain, resulting in more flexibility for the driving modes. The Simpson planetary gearset consisted of two planetary gearsets with a brake for each set's ring gear, and another brake Next, in a latest work described by [79], a two-motor configuration based on a Simpson planetary gearset was proposed in a two-motor EV powertrain configuration.…”

Section: Multi-motor Configurationmentioning

confidence: 99%

“…The Simpson planetary gearset consisted of two planetary gearsets with a brake for each set's ring gear, and another brake Next, in a latest work described by [79], a two-motor configuration based on a Simpson planetary gearset was proposed in a two-motor EV powertrain configuration. Unlike the configuration described in [78], this proposal provided two gear ratios in the powertrain, resulting in more flexibility for the driving modes. The Simpson planetary gearset consisted of two planetary gearsets with a brake for each set's ring gear, and another brake was used at the first motor's shaft.…”

Section: Multi-motor Configurationmentioning

confidence: 99%

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Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

et al. 2022

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Electric vehicles (EV) are quickly gaining a foothold in global markets due to their zero tailpipe emissions and increasing practicality in terms of battery technologies. However, even though EV powertrains emit zero emissions during driving, their efficiency has not been fully optimized, particularly due the commonly used single-speed transmission. Hence, this paper provides an extensive review on the latest works carried out to optimize the power flow in EV powertrains using multispeed discrete transmission, continuously variable transmission and multi-motor configurations. The relevant literatures were shortlisted using a keyword search related to EV powertrain in the ScienceDirect and Scopus databases. The review focused on the related literatures published from 2018 onwards. The publications were reviewed in terms of the methodologies applied to optimize the powertrain for efficiency and driving performance. Next, the significant findings from these literatures were discussed and compared. Finally, based on the review, several future key research areas in EV powertrain efficiency and performance are highlighted.

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Section: Multi-motor Configurationmentioning

confidence: 99%

Section: Multi-motor Configurationmentioning

confidence: 99%

Section: Multi-motor Configurationmentioning

confidence: 99%

Section: Multi-motor Configurationmentioning

confidence: 99%

See 2 more Smart Citations

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

et al. 2022

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“…The collaboration of two motors and the gearbox shifting enables better performance. [ 25 ] The coordinated control of the dual‐motor and multispeed gearbox had been optimized to release its superiority in refining dynamic and economic performance. [ 26 ] Furthermore, many dedicated gearboxes for dual‐motor powertrains were proposed and optimized.…”

Section: Introductionmentioning

confidence: 99%

Optimal Sizing, Gear Ratios, and Shifting Schedule of Battery‐Electric Mining Haul Trucks to Enhance Energy Efficiency

Liu,

Feng,

Liu

et al. 2024

Energy Tech

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At present, mining haul trucks (MHTs) directly deploy the on‐road heavy‐duty trucks’ battery‐electric powertrain, as they can cut down costs and emissions in mining. However, the operating patterns of MHT are different, e.g., ultraduty, low‐speed, and continuous road slopes, resulting in a mismatch between the dynamic and economic performance of mining required and the MHT achieved. The powertrain design and control influence the dynamic and economic performance, which can be quantitatively measured by top speed, gradeability, and energy consumption. This study uses an improved differential evolutionary algorithm to develop an integrated optimization platform to obtain the components sizing, gear ratio, and shifting schedule for the dedicated battery‐electric MHT. Mathematical models are established and validated using on‐site experiment data. An integrated optimization platform is initiated by concurrently formulating the motor sizing, gear ratio, and shifting schedule and solved by the improved differential evolutionary algorithm. Optimization results indicate that the economic performance is enhanced by 10.82%, 11.08%, 11.18%, and 11.20%, respectively, while maintaining or slightly improving the dynamic performance. Besides, the achievable maximum speed at the most common grade is boosted by 11.82%, 6.52%, 7.44%, and 6.52%, respectively. The study provides an approach to developing a battery‐electric powertrain for MHT.

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Time-Dependent Errors Influence on the Transmission Error in Planetary Gears with Different Mesh Phasing

Sanchez-Espiga,

Fürst,

Fernandez-del-Rincon

et al. 2023

Advances in Mechanism and Machine Science

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Optimization design and performance comparison of different powertrains of electric vehicles

Cited by 28 publications

References 27 publications

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

Review of the Methods to Optimize Power Flow in Electric Vehicle Powertrains for Efficiency and Driving Performance

Optimal Sizing, Gear Ratios, and Shifting Schedule of Battery‐Electric Mining Haul Trucks to Enhance Energy Efficiency

Time-Dependent Errors Influence on the Transmission Error in Planetary Gears with Different Mesh Phasing

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