Motor-torque-limited power-on upshift control in electric vehicles with automatic transmissions

Chen, Zhifeng; Liu, Yanfang; Fu, Yanxiao; Xu, Xiangyang

doi:10.1177/0954407015577309

Cited by 13 publications

(10 citation statements)

References 20 publications

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“…The power measured on the Edison II has been higher (Figure 7) than the power given in its documentation (Table 1). The power in the documentation is the assumed one and, in the case of electric cars, there is a common phenomenon that the power measured is the higher than power given by the manufacturer [30]. low.…”

Section: Discussionmentioning

confidence: 99%

Assessing the Energy Efficiency of an Electric Car

Synák¹,

Kučera²,

Skrúcaný³

2021

Komunikácie

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Electric car does not supply all the electric energy, obtained from the electric network, to the wheels in the form of mechanical energy. During such a transformation, a part of this energy is lost. The article endeavours to determine the energy efficiency of selected electric car. The electric car used for measurements is not from the batch production since that is a vehicle designed at University of Zilina. The efficiency has been observed while driving under the conditions of amended methodology of New European Driving Cycle (NEDC). The measured value of electric car's efficiency is being analyzed from the energy consumption, as well as emission production, points of view.

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Section: Discussionmentioning

confidence: 99%

Assessing the Energy Efficiency of an Electric Car

Synák¹,

Kučera²,

Skrúcaný³

2021

Komunikácie

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“…The dynamic control is also considered for a power-on shift in electrified powertrain. 27 It is worth noting that the vertical part of each shifting curve is the result of speed limitation by certain gear ratio. The degree of throttle opening is defined by a value from 0 (throttle closed, no compress on accelerating pedal) to 1 (throttle fully opened, fully compressed accelerating pedal).…”

Section: Shifting Strategymentioning

confidence: 99%

Development of continuously variable transmission and multi-speed dual-clutch transmission for pure electric vehicle

Ruan

Walker

et al. 2018

Advances in Mechanical Engineering

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Pure electric vehicles, as a promising alternative to conventional fossil fuel-powered passenger vehicles, provide outstanding overall energy-utilizing efficiency by omitting the internal combustion engine. However, because of lower energy density in battery energy storage, the driving range per charge is limited by this electrochemical power source, leading to a socalled range phobia and presenting a major barrier for large-scale commercialization. The widely adopted single-reduction gear in pure electric vehicles typically do not achieve the diverse range of functional needs that are present in multi-speed conventional vehicles, most notably acceleration performance and top speed requirements. Consequently, special-designed multi-speed pure electric vehicle-powertrains have been compared and investigated for these applications in this article. Through the optimizing of multiple gear ratios and creating special shifting strategies, a more diverse range of functional needs is realized without increasing the practical size of the electric motor and battery. This article investigates the performance improvements of pure electric vehicle realized through utilization of multi-speed dual-clutch transmissions and continuously variable transmissions. Results reveal that there can be significant benefits attained for pure electric vehicles through multi-speed transmissions. Simulation results shows that continuously variable transmission and two-speed transmission are the two most promising transmissions for pure electric vehicle in different classes, respectively.

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“…The key assembly component of connected vehicles is the integrated electric drive (IED) system which is composed of drive motor and transmission device. The vehicle speed tracking performance performed by an IED system directly affects driving quality [7,9,39,40]. With the development of electric vehicles and communication technologies, in-vehicle controller area network (CAN) connect to external networks providing drivers with more efficient, safe and enjoyable driving guidance [11,22,27,34,43].…”

Section: Introductionmentioning

confidence: 99%

Longitudinal speed tracking control for an electric connected vehicle with actuator saturation subject to a replay attack

Chen

Xu²,

Chen³

et al. 2022

Nonlinear Dyn

Self Cite

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In this paper, a delay-tolerable and anti-windup control synthesis technique is proposed. Longitudinal speed tracking performed by an integrated electric drive (IED) system under the multi-domain constraints of network bandwidth and actuator saturation is investigated. An in-vehicle controller area network (CAN) connect to the Internet providing an interface for cyber attacks which exacerbate network congestion. In addition, the physical saturation characteristics of the electric drive motor sacrifice vehicle speed tracking performance. Based on above problems, a nominal controller satisfying energy-to-peak performance considering the attack-induced delays is designed. Then, an augmented closed-loop system is established including the nom-

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Motor-torque-limited power-on upshift control in electric vehicles with automatic transmissions

Cited by 13 publications

References 20 publications

Assessing the Energy Efficiency of an Electric Car

Assessing the Energy Efficiency of an Electric Car

Development of continuously variable transmission and multi-speed dual-clutch transmission for pure electric vehicle

Longitudinal speed tracking control for an electric connected vehicle with actuator saturation subject to a replay attack

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