Integrated electromagnetic braking/driving control of electric vehicles using fuzzy inference

Chen, Yuchan; Tu, Chia-Hung; Lin, Chun-Liang

doi:10.1049/iet-epa.2018.5817

Cited by 12 publications

(12 citation statements)

References 23 publications

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“…When the vehicle speed is low, the electromotive force generated by the motor is small, it is difficult to charge the battery, and it will reduce the reliability of braking when participating in regenerative braking. Therefore, regenerative braking doesn't work at low vehicle speeds [25,26]. When the braking intensity is too strong, regenerative braking also needs to stop working.…”

Section: Security and Compliance Constraintsmentioning

confidence: 99%

Performance Analysis of Electronic Mechanical Assisted Braking of Environmental-Friendly Vehicles Based on Pedal Decoupling

2021

IJOMAM

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This research aims to reduce the impact of the regenerative braking force generated by the new energy vehicle on the braking performance during regenerative braking. It mainly focuses on the braking design scheme of pedal decoupling and the corresponding pedal decoupling strategy. First, the pedal decoupling scheme is designed, and the electronic mechanical assisted braking model and the overall model of the driving vehicle are established. The model includes electromechanical booster model, active accumulator model, and hydraulic braking model. The electromechanical booster model mainly includes the permanent magnet synchronous motor model and the transmission mechanism model. Then, the pedal decoupling strategy based on the new decoupling scheme is studied, and the decoupling process is divided into three stages. According to the control requirements of each stage, the control of pressure reducing valve and the pump motor in the electronic stability program (ESP) is realized, so as to adjust the brake circuit hydraulic pressure during the decoupling process. Moreover, the decoupling current is calculated to adjust the torque of the electromechanical booster motor, so as to adjust the pedal feel. Finally, the control strategy of the electro-mechanical assist motor is designed to realize the control of the motor. The experimental results show that the designed decoupling strategy can make the master cylinder hydraulic pressure change according to the distribution result of the braking force distribution strategy under the three braking strengths of low, medium, and high, which has a good decoupling effect. In addition, the decoupling electro-hydraulic compound braking realizes the precise control of the wheel cylinder pressure and effectively recovers the braking energy. The braking energy feedback efficiency reaches 54.8%. The designed decoupling strategy provides some references for the adoption of pedal decoupling in automobile assisted braking.

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Section: Security and Compliance Constraintsmentioning

confidence: 99%

Performance Analysis of Electronic Mechanical Assisted Braking of Environmental-Friendly Vehicles Based on Pedal Decoupling

2021

IJOMAM

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“…Since this part is not the major focus of this paper thus theoretical development is ignored for brevity. One may refer to [24, 25] for more details.…”

Section: Description Of Driving/braking Systemmentioning

confidence: 99%

Motor driving/braking control scheme with integration of multiple driving components

Chang

Lin

et al. 2020

Asian Journal of Control

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This paper develops a modular multilevel inverter which integrates driving/braking control schemes in a unit for electric vehicles. The multiple driving components are used to balance surge voltage/current across the last stage power MOSFETs due to abrupt back electromotive force (EMF) generated by the permanent magnet synchronous motor (PMSM). A fundamental unit of the motor driver generally consists of multiple power MOSFETs connected in series/parallel with a braking resistor. These units can be assembled according to the design. In practice, when a PMSM is driven due to inertia rotation, it becomes a power generator which would induce back EMF caused by magnetic induction when a braking command is applied to the driver. If one tries to increase braking effect by reversing driving torque with any approaches for immediately or fast stopping the rotating motor, it commonly leads to switching element breakdown due to the surge counter EMF. In this paper, with the expandable series–parallel design of the inverter circuit, surge voltage/current is dispersed in a balanced manner. Compared with conventional three‐phase motor driver design, the proposed one possesses better durability. Also, it reduces hardware cost since it allows low‐grade power components to be used in the high‐power motor drivers.

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“…Although numerous methods and approaches are presented in recent literature, most of them accommodate complex mathematical modeling or additional circuits and of course, those extra features hinder the possibilities of practical application of regenerative braking. The suitable solution implies not using any additional circuits, implementing a braking control strategy without compromising the regenerative braking performance [24]. The fundamental principle of regeneration is relied on using an inverter as a boost converter and machine stator winding as boosting inductors.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Regenerative Braking Performance of Brushless Direct Current Machine Drive System

Kıvanç

Üstün

2021

Applied Sciences

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The brushless direct current (BLDC) machines which are preferred in light electric vehicles (LEVs) come forward as high regenerative braking capability machines due to their permanent magnet excitation and relatively simple operation. In this paper, the regenerative braking capability limits of BLDC machines and their drive circuits are examined by taking into account nonlinear circuit parameters and battery internal resistance variation. During energy recovery from mechanical port to electrical port, the inverter of BLDC machine is operated as a boost converter which enables power flow to a battery. However, the regeneration performance is also heavily dependant on the battery condition, particularly the temperature. By means of the developed detailed circuit model including the non-ideal effects of the boosting converter and the increase of the internal resistance variation which is caused by the temperature variation of the battery and ambient temperature, the specific duty cycle can be determined. The specific duty ratio is then applied in a proposed approach for various operation scenarios. The experimental tests are implemented by a 400 W BLDC machine drive system controlled via a TMS320F28335 digital signal processor. The experimental results show that the proposed comprehensive model presents a proper performance estimation of regenerative braking system under varying battery temperature.

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Integrated electromagnetic braking/driving control of electric vehicles using fuzzy inference

Cited by 12 publications

References 23 publications

Performance Analysis of Electronic Mechanical Assisted Braking of Environmental-Friendly Vehicles Based on Pedal Decoupling

Performance Analysis of Electronic Mechanical Assisted Braking of Environmental-Friendly Vehicles Based on Pedal Decoupling

Motor driving/braking control scheme with integration of multiple driving components

Investigation of Regenerative Braking Performance of Brushless Direct Current Machine Drive System

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