Prototype production and comparative analysis of high-speed flywheel energy storage systems during regenerative braking in hybrid and electric vehicles

Erhan, Koray; Özdemir, Engin

doi:10.1016/j.est.2021.103237

Cited by 31 publications

(11 citation statements)

References 22 publications

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“…Generally speaking, research on energy regeneration technology is very important. It is an effective way to improve vehicle energy utilization efficiency [52,53]. Although more regeneration energy can be recovered, this can only be achieved during the braking process [54,55].…”

Section: Energy Consumption Distributionmentioning

confidence: 99%

A Comparative Study on the Energy Flow of Electric Vehicle Batteries among Different Environmental Temperatures

Zhao

et al. 2023

Energies

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In the present research, the energy flow of electric vehicle batteries under different environmental temperatures was experimentally examined in a climate chamber. The energy flow characteristics, energy loss conditions, and the critical components’ operating conditions and working efficiency under different environmental temperatures were comparatively analyzed. The test results show that the environmental temperature has a profound impact on an electric vehicle’s performance and the critical components’ working conditions. The driving mileage of the tested vehicle at −7 °C, 23 °C, and 35 °C was found to be 162.89 km, 256.09 km, and 198.69 km, respectively. The environmental temperature does not have much effect on the loss of the motor and motor control unit under driving conditions, and the proportion of those at different temperatures is in all cases about 18%. The battery-recycled energy at 23 °C under braking conditions is much higher than that at −7 °C and 35 °C, leading to a longer driving range. The power battery pack thermal transfer loss at −7 °C is much greater than that at 23 °C and 35 °C due to the low charging and discharging efficiency and the high energy consumption required to warm up the battery at a low environmental temperature. The compressor energy consumption accounts for a large proportion in both braking and driving conditions at 35 °C, and the proportions are 15.25% and 12.41%, respectively. The battery state-of-charge drops the fastest at −7 °C, followed by 35 °C, due to the differences in the power demands of air conditioning, warm air positive temperature coefficient (PTC), and battery PTC in high- and low-temperature environments. The working condition of the front motor under driving conditions at 35 °C is the most severe and leads to the lowest working efficiency.

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Section: Energy Consumption Distributionmentioning

confidence: 99%

A Comparative Study on the Energy Flow of Electric Vehicle Batteries among Different Environmental Temperatures

Zhao

et al. 2023

Energies

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“…Energy harvesting for vehicle braking systems includes regenerative braking system and tiny energy harvesting system. Common braking energy recovery systems includes electromagnetic system [124], flywheel system [125], and hydraulic system [126,127]. The brake energy recovery control strategy is to study how to rationally allocate braking power to achieve good braking performance and energy recovery efficiency [128,129].…”

Section: Energy Harvesting On Braking Systemmentioning

confidence: 99%

Mechanical energy harvesting in traffic environment and its application in smart transportation

Xiao

Chang

et al. 2023

J. Phys. D: Appl. Phys.

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The concept of green and sustainable development is driving the convergence of transportation systems and energy technologies. New energy harvesting technology is an important way of the development in the green intelligent transportation system. Comparing with the power supply via batteries or cables, it has the advantages of convenient, sustainable, green and low carbon to harvest mechanical energy from the traffic environment and convert it into electrical energy to power the widely distributed small electromechanical systems. There are many studies on mechanical energy harvesting in traffic environment, few of them have comprehensively discussed these studies and their applications in the intelligent transportation. This paper first outlines the principles, methods, and energy management strategies of the mechanical energy harvesting in the traffic environment. The advantages, disadvantages, and applicability of various energy harvesting technologies are comprehensively and systematically analyzed from vehicle and road dimensions. The applications of energy harvesting technology was discussed includes: self-powered traffic control, self-powered vehicle-road collaboration and self-powered health monitoring of traffic infrastructure. Finally, the challenges and prospects of mechanical energy harvesting technology and applications in the traffic environment are discussed. Mechanical energy harvesting in traffic environment has broad application prospects in intelligent transportation, while improving the output power and reliability of the energy harvesting system is the key to its wide application in intelligent transportation systems.

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“…[3] The so-called regenerative braking technology is under the premise of safe and stable braking of the vehicle, through the motor and other devices to convert part of the kinetic energy consumed by the vehicle during braking into electrical energy storage energy source device, it not only achieves the purpose of extending the driving range, but also to increase the service life of the braking system. [4,5] To obtain higher efficiency and better regenerative braking ability, reasonable energy management strategy, regenerative braking mode, and braking force distribution are essential. Considering the highefficiency characteristics of the regenerative braking system, a regenerative braking control strategy based on swarm intelligent prediction based on particle swarm optimization is proposed, and the model predictive control theory is applied in the control strategy to achieve the optimal solution.…”

Section: Introductionmentioning

confidence: 99%

“…[ 3 ] The so‐called regenerative braking technology is under the premise of safe and stable braking of the vehicle, through the motor and other devices to convert part of the kinetic energy consumed by the vehicle during braking into electrical energy storage energy source device, it not only achieves the purpose of extending the driving range, but also to increase the service life of the braking system. [ 4,5 ]…”

Section: Introductionmentioning

confidence: 99%

Regenerative Braking Control Strategy Based on Pavement Recognition Controller for Electric Vehicle

Chen

et al. 2023

Energy Tech

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Regenerative braking is a key technology for electric vehicles to improve energy efficiency and extend driving range. Considering the impact of road surface adhesion coefficient in the regenerative braking process of vehicles is a meaningful but challenging problem. To effectively utilize the pavement adhesion coefficient and improve the brake energy recovery effect, a pavement observer‐based regenerative braking control strategy for pure electric vehicles is proposed. The control strategy can identify the pavement based on correction factor by analogy idea according to the real‐time state information of vehicles. The optimal braking force distribution coefficient under different pavements is obtained by Fmincon function based on interior point algorithm. The effectiveness of the control strategy is verified by Simulink/CarSim software cosimulation and road test. The results show that the braking time of the proposed regenerative braking control strategy is reduced by 8.2% and the average actual feedback braking torque is increased by 17.6% in dry asphalt conditions compared with the fixed proportional distribution control strategy. Under the premise of effectively ensuring the braking stability and safety of the vehicle, more energy generated during braking can be recovered.

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Prototype production and comparative analysis of high-speed flywheel energy storage systems during regenerative braking in hybrid and electric vehicles

Cited by 31 publications

References 22 publications

A Comparative Study on the Energy Flow of Electric Vehicle Batteries among Different Environmental Temperatures

A Comparative Study on the Energy Flow of Electric Vehicle Batteries among Different Environmental Temperatures

Mechanical energy harvesting in traffic environment and its application in smart transportation

Regenerative Braking Control Strategy Based on Pavement Recognition Controller for Electric Vehicle

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