Sensorless Driving/Braking Control for Electric Vehicles

Chen, En-Ping; Cheng, Jiangfeng; Tu, Jia-Hung; Lin, Chong

doi:10.3390/act9010022

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…Due to the vehicle velocity v t being unknown, the slip ratio λ cannot be obtained directly according to Equation (5). Thus, based on the multi-sensor data fusion method, the slip ratio is usually inferred from acceleration and wheel speed sensors [36].…”

Section: High-speed Train Modelmentioning

confidence: 99%

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Prescribed Performance Active Braking Control with Reference Adaptation for High-Speed Trains

et al. 2021

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Active braking control systems are vital for the safety of high-speed trains by leading the train operation at its maximum adhesion state. The train adhesion is a nonlinear function of the slip ratio and varies with the uncertain wheel-rail contact conditions. A nonlinear active braking control with rapid and accurate tracking performance is highly required for train braking systems. This paper proposes a novel prescribed performance active braking control with reference adaptation to obtain the maximum adhesion force. The developed feedback linearization controller employs a prescribed performance function that specifies the convergence rate, steady-state error, and maximum overshoot to ensure the transient and steady-state control performance. Furthermore, in the designed control approach, a continuous-time unscented Kalman filter is introduced to estimate the uncertainty of wheel-rail adhesion. The estimation is utilized to represent uncertainty and compensate for the prescribed performance control law. Finally, based on the estimated wheel-rail adhesion, an on-line optimal slip ratio generation algorithm is proposed for the adaptation of the reference wheel slip. The stability of the system is provided, and experiment results validate the effectiveness of the proposed method.

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Section: High-speed Train Modelmentioning

confidence: 99%

“…The braking performance is restricted to the train adhesion. The maximum train deceleration can be obtained when the wheel slip ensures maximum wheelrail adhesion [5]. Thus the optimal wheel slip is the desired operating condition of the train braking system.…”

Section: Introductionmentioning

confidence: 99%

Prescribed Performance Active Braking Control with Reference Adaptation for High-Speed Trains

et al. 2021

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“…With the increasing use of green energy, electric vehicles (EVs) are becoming increasingly popular and are one of the most promising technologies in terms of transforming the transportation system [1,2]. This is because they have the advantages of energy saving and environmental protection, accurate torque control, and a simple mechanical structure [3,4].…”

Section: Introductionmentioning

confidence: 99%

Lateral Stability Control of Four-Wheel-Drive Electric Vehicle Based on Coordinated Control of Torque Distribution and ESP Differential Braking

Chen

Yang

et al. 2021

Actuators

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This research focuses on four-wheel-drive electric vehicles. On the basis of the hierarchical coordinated control strategy, the coordinated control system of driving force distribution regulation and differential braking regulation was designed to increase the electric vehicles steering stability under special road working conditions. A seven-degree-of-freedom model of an electric vehicle was established in MATLAB/Simulink, and then a hierarchical coordination control model of the Electronic stability program and dynamic torque distribution control system was established. Adaptive fuzzy control was applied to ESP and, based on the neural network PID control, a torque distribution control system was designed. On the basis of the proposed coordinated control model, a performance simulation and a hardware-in-the-loop test of the control system under the typical working condition of single line shift were carried out. From the final results, it can be seen that the proposed control strategy can greatly improve the safety of the vehicle after serious side slip, increase the stability of the whole vehicle, and effectively increase the vehicle lateral stability.

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“…Therefore, they have been used in many fields such as transportation, aircraft, distributed generation, and especially in stationary and mobile applications [11][12][13][14][15][16][17][18]. In these applications, the PEMFC is usually coupled with a DC-DC power electronic converter that provides an efficient power conversion to the load, and also offers highly regulated output voltage [19][20][21][22][23]. Therefore, the control loop is needed so as to obtain an applicable output dc voltage.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Implementation of a New MPPT Control Method for a DC-DC Boost Converter Used in a PEM Fuel Cell Power System

et al. 2020

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Polymer electrolyte membrane (PEM) fuel cells demonstrate potential as a comprehensive and general alternative to fossil fuel. They are also considered to be the energy source of the twenty-first century. However, fuel cell systems have non-linear output characteristics because of their input variations, which causes a significant loss in the overall system output. Thus, aiming to optimize their outputs, fuel cells are usually coupled with a controlled electronic actuator (DC-DC boost converter) that offers highly regulated output voltage. High-order sliding mode (HOSM) control has been effectively used for power electronic converters due to its high tracking accuracy, design simplicity, and robustness. Therefore, this paper proposes a novel maximum power point tracking (MPPT) method based on a combination of reference current estimator (RCE) and high-order prescribed convergence law (HO-PCL) for a PEM fuel cell power system. The proposed MPPT method is implemented practically on a hardware 360W FC-42/HLC evaluation kit. The obtained experimental results demonstrate the success of the proposed method in extracting the maximum power from the fuel cell with high tracking performance.

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Sensorless Driving/Braking Control for Electric Vehicles

Cited by 4 publications

References 17 publications

Prescribed Performance Active Braking Control with Reference Adaptation for High-Speed Trains

Prescribed Performance Active Braking Control with Reference Adaptation for High-Speed Trains

Lateral Stability Control of Four-Wheel-Drive Electric Vehicle Based on Coordinated Control of Torque Distribution and ESP Differential Braking

Real-Time Implementation of a New MPPT Control Method for a DC-DC Boost Converter Used in a PEM Fuel Cell Power System

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