Analysis on Charging Safety and Optimization of Electric Vehicles

Jiang, Linru; Zhang, Yuanxing; Li, Taoyong; Diao, Xiaohong; Zhang, Jing

doi:10.1109/iccc51575.2020.9344906

Cited by 26 publications

(6 citation statements)

References 2 publications

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“…In the paper [67], the causes of events related to the functioning of the EV charging system (such as battery explosion/ignition, overcharging, short circuits, and leaks) at the charging point are analyzed. A similar problem is dealt with in [68][69][70].…”

Section: Review Of Ev Safety Issuesmentioning

confidence: 99%

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

Guzek,

Jackowski,

Jurecki

et al. 2024

Energies

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The electrification of road transport is developing dynamically around the world. Many automotive companies are introducing electric vehicles to the market, and their popularity is constantly growing. The increasing popularity of electric vehicles is caused by individual countries’ governments encouraging people to switch to electric vehicles and their lower operating costs. In 2022, the number of electric vehicles in China will exceed 10 million. Europe and the USA rank second and third in global electric car stock, respectively. The number of available electric vehicle models is constantly growing, remaining approximately 2.5 times smaller than the case of vehicles with an internal combustion engine. Among others, a significant limitation to the popularity of electric cars is users’ fear of range and the density of the charging infrastructure network. This paper presents the objectives regarding public areas and charging stations around the European Union’s comprehensive and core transport network. It is worth noting that the vehicle and charging point’s charging connectors vary depending on the geographical region. Therefore, the currently used charging connectors for different regions are presented. Charging time depends significantly on the charging current, the power of the charging point, and the devices installed in the vehicle. The paper analyzes the limitations of charging power resulting from the onboard charger’s power and the charging point’s power. It presents the charging time of selected electric vehicles. The second aspect that is also the subject of user concerns and discussed in this article is issues related to the safety of electric vehicles. General safety indicators of such vehicles based on Euro-NCAP tests are characterized. Attention was also paid to more detailed problems related to active and passive safety and functional safety analyses. The issue of the fire hazard of electric vehicles was discussed together with modern experiences regarding post-accident procedures in the event of fires.

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Section: Review Of Ev Safety Issuesmentioning

confidence: 99%

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

Guzek,

Jackowski,

Jurecki

et al. 2024

Energies

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“…The prestage rectifier corrects the power factor, and the post-stage DC/DC converter controls the charging power and voltage isolation. Therefore, the working efficiency of the post-stage DC/DC converter determines the overall performance of the DC/DC charger [31], [32], [33], [34], [35]. The DC/DC converter controlled by the traditional pulse width modulation method belongs to the hard switching type, that is, the voltage and current at both ends of the switch tube are not zero during the conduction and shutdown, and there is a cross between the two [36], [37], [38], [39].…”

Section: Design and Loss Analysis Of Fast Charging Optimization Circu...mentioning

confidence: 99%

DC Charger Circuit Optimization Design and Fast Charging and Discharging Mechanism Research

Shen,

Yan,

Zhou

et al. 2023

IEEE Access

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With the advent of the era of new energy vehicles, the layout of charging piles is slightly lagging behind, and the charging efficiency of chargers is uneven, which leads to the problems of difficult charging and long charging time of electric vehicles. Therefore, market users put forward higher requirements for the charging efficiency of chargers. This paper first analyzes the circuit design principle and loss of the traditional charger, then designs a zero voltage switch(ZVS) half-bridge three-level DC/DC converter with high charging efficiency, and proposes a multi-stage constant current limiting charging strategy. Finally, through simulation and experimental verification, it is proved that the proposed strategy can strengthen the voltage regulation ability of the charger, and can achieve a stable current sharing state when charging.INDEX TERMS Circuit design, charging strategy, DC/DC charger, working loss.

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“…This means that a highly automated driving (L4) feature in which DAS is expected to operate independently in complex driving scenarios will require more capable and reliable hardware (sensors, processor, memory), V2X connectivity, faster as well as broader communication bandwidth, and a significant increase in lines of code and data storage as compared to conditional automation (L3) where the human driver can act as a complementary driver in complex driving condition. A typical safety-critical system like AV should also be capable of responding to failures in Domain-centric [39] Domain-centric [39] Domain-centric [39] Centralized [39] Centralized [39] DDT sensors (#) Radar (1) [40], [41], [42] RADAR (1-3) SONAR (1-12) Camera (1-2) IMU (1) [40], [41], [42], [43] RADAR (3-5) SONAR (up to 17) Camera (2-6) IMU (1) GNSS/GPS (1) [40], [41], [42], [43] RADAR (8) SONAR (up to 12) Camera (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) Lidar (1-5) IMU (>1) GNSS/GPS (>1) [40], [41], [42], [43], [44] RADAR (8) SONAR (up to 12) Camera (6)(7)(8)(9)(10)…”

Section: A Distinguishing Aspects Of Sae Automation Levelsmentioning

confidence: 99%

“…Moreover, the realistic target for L4 CAV will most likely be on EVs, considering the global acceptance of carbon neutrality and accelerated pace of EV design and manufacturing amongst the OEMs. Hence, bi-directional interactions between the utility distribution grids, EVs, and charging infrastructure, e.g., EV chargers (EVCs)and EV charging stations (EVCSs), are critical areas to analyze [9]. It also includes crucial data exchange between the cooperative intelligent transport system (C-ITS) center and infrastructure behaviors that highly impact the performance of a CAV [10].…”

Section: Introductionmentioning

confidence: 99%

Post-Accident Cyberattack Event Analysis for Connected and Automated Vehicles

et al. 2022

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Smart mobility is an imperative facet of smart cities, and the transition of conventional automotive systems to connected and automated vehicles (CAVs) is envisioned as one of the emerging technologies on urban roads. The existing AV mobility environment is perhaps centered around road users and infrastructure, but it does not support future CAV implementation due to its proximity with distinct modules nested in the cyber layer. Therefore, this paper conceptualizes a more sustainable CAVenabled mobility framework that accommodates all cyber-based entities. Further, the key to a thriving autonomous system relies on accurate decision making in real-time, but cyberattacks on these entities can disrupt decision-making capabilities, leading to complicated CAV accidents. Due to the incompetence of the existing accident investigation frameworks to comprehend and handle these accidents, this paper proposes a 5Ws and 1H-based investigation approach to deal with cyberattack-related accidents. Further, this paper develops STRIDE threat modeling to analyze potential threats endured by the cyber-physical system (CPS) of a CAV ecosystem. Also, a stochastic anomaly detection system is proposed to identify the anomalies, abnormal activities, and unusual operations of the automated driving system (ADS) functions during a crash analysis.INDEX TERMS CAV-enabled transport mobility environment, cybersecurity, STRIDE threat modeling, accident investigation.

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Analysis on Charging Safety and Optimization of Electric Vehicles

Cited by 26 publications

References 2 publications

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

DC Charger Circuit Optimization Design and Fast Charging and Discharging Mechanism Research

Post-Accident Cyberattack Event Analysis for Connected and Automated Vehicles

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