Real-Time Performance and Driveability Analysis of a Clutchless Multi-Speed Gearbox for Battery Electric Vehicle Applications

Louback, Eduardo; Machado, Fabricio; Bruck, Lucas; Kollmeyer, Phillip J.; Emadi, Ali

doi:10.1109/itec53557.2022.9814032

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…To improve the efficiency of drive systems of mobile robots and electric vehicles, the use of multi-speed transmissions is widely studied [2]. Multi-speed gearboxes have been explored for application in the transmission of battery electric vehicles, since multiple ratios add the ability to keep the electric motor running in a higher efficiency area, thereby reducing vehicle energy consumption and improving dynamic performance [3]. The use of a multi-stage gearbox increases the cost of producing an electric vehicle and requires the introduction of a gearbox control [4] and the development of a gear shift algorithm [5].…”

Section: Introductionmentioning

confidence: 99%

Research and design of an efficient adaptive drive with balancing friction coupling

Alipbayev,

Ivanov,

Sultan

et al. 2024

J Appl Eng Science

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Currently, research related to the automation of processes, systems and devices are of high relevance in the scientific and technical field: in the aerospace industry, robotics and electric transport technology. Successful automation of facilities and processes requires simplified control systems, and an adaptive mechanical system operates without a control system, which increases its reliability and efficiency. In particular, the creation of an efficient and reliable transmission of electric autonomous and mobile vehicles can be achieved by an adaptive mechanical drive with two degrees of freedom. Adaptation of the two-mobile system (2-DoF) is achieved by the proposed completely new type of transmission, namely the design of a stepless multi-speed drive with an additional friction coupling. The property of reliable adaptation of a two-mobile self-adjusting mechanical drive is independent adaptability to an external load with the help of a balancing friction coupling that provides a connection between the frictional moment and the relative angular velocity. The article presents a study of the interaction of the parameters of a two- mobile system in order to improve the efficiency of a self-adjusting adaptive drive with a given wide range of regulation based on the use of a friction coupling.

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Section: Introductionmentioning

confidence: 99%

Research and design of an efficient adaptive drive with balancing friction coupling

Alipbayev,

Ivanov,

Sultan

et al. 2024

J Appl Eng Science

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show abstract

“…Multi-speed gearboxes have garnered significant attention as potential components for transmissions in battery electric vehicles. This exploration is driven by the advantage of incorporating multiple gear ratios, which keeps the electric motor operating within a more efficient range, resulting in reduced energy consumption for the vehicle and improved dynamic performance [3]. However, integrating a multi-stage gearbox in an electric vehicle increases production costs and requires the implementation of gearbox control mechanisms [4] and the development of a gear shift algorithm [5].…”

Section: Introductionmentioning

confidence: 99%

Research and construction of an adaptive drive with increased efficiency based on a balancing friction clutch

Sultan,

Yermoldina,

Kassym

et al. 2024

Vib. proced.

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Presently, there is significant emphasis on researching the automation of processes, systems, and devices across scientific and technical fields. This emphasis extends notably to sectors like aerospace, robotics, and electric transportation technology. One effective approach to tackling the technical and design challenges of automating various technological tools and processes is through the implementation of adaptive systems. Specifically, achieving efficient and reliable power transmission in electric autonomous and mobile vehicles can be realized by employing an adaptive mechanical drive with two degrees of freedom. The adaptability of this two-mobile system is enabled by introducing an innovative continuous multi-speed drive design featuring an additional friction coupling. The primary attribute ensuring the reliability of this self-adjusting mechanical drive lies in its ability to autonomously adapt to external loads. This is made possible by a balancing friction coupling that establishes a connection between the frictional torque and the relative angular velocity.

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“…Yang et al conducted subjective and objective evaluations of PHEV passenger cars regarding the impact of complex control strategies and operating modes on driving performance [21]. A driveability evaluation of the battery electric vehicles equipped with multi-speed gearboxes in a static driving simulator was conducted [22]. A simulation model for driveability assessment and optimization of hybrid drive trains was also proposed [23].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Subjective Evaluation Method of Driveability for Fuel Cell Vehicles

Zhan,

Zhu,

Duan

et al. 2024

Energies

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Aiming at the demand for subjective evaluation of driveability for fuel cell vehicles, the modeling and evaluation method of driveability for fuel cell vehicles were studied in this paper. Firstly, a real-time model of the fuel cell vehicle powertrain system was established, which included the fuel cell model, power battery model, DC/DC converter model and drive motor model. Secondly, it was integrated with the vehicle dynamics model to form a virtual prototype of a fuel cell vehicle. And a virtual subjective evaluation platform for fuel cell vehicles was built by combining the virtual prototype and high-fidelity driving simulator. Thirdly, a subjective evaluation method of driveability for fuel cell vehicles was proposed, which included the starting performance, acceleration performance, uniform speed performance and tip-in/tip-out performance. Finally, the paper used the platform and method mentioned above to conduct subjective evaluations of the fuel cell vehicles.

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Real-Time Performance and Driveability Analysis of a Clutchless Multi-Speed Gearbox for Battery Electric Vehicle Applications

Cited by 7 publications

References 10 publications

Research and design of an efficient adaptive drive with balancing friction coupling

Research and design of an efficient adaptive drive with balancing friction coupling

Research and construction of an adaptive drive with increased efficiency based on a balancing friction clutch

Modeling and Subjective Evaluation Method of Driveability for Fuel Cell Vehicles

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