Abstract With the rapid advancement of new energy vehicle (NEV) teknologi, the safety and reliability of electrical power systems have become critical concerns. This paper explores circuit protection mechanisms in NEVs, including battery management systems (BMS), power transmission lines, power management, motor controllers, and high-voltage DC circuits. By analyzing various protection strategies such as overcurrent […]
1. Scope This standard specifies the test methods for evaluating the performance of thermal management systems in power batteries. It includes test conditions, test procedures, performance evaluation criteria, and reporting requirements. This standard applies to thermal management systems for power batteries used in electric vehicles (elbiler), hybrid electric vehicles (HEVs), and other relevant applications. 2. […]
Introduction With the global push toward sustainability, the transportation and heavy machinery industries are undergoing significant transformations. Blant dem, the advent of electric dump trucks marks a revolutionary shift from traditional diesel-powered vehicles to cleaner and more efficient alternatives. These electric dump trucks not only contribute to reducing carbon emissions but also provide operational advantages […]
Introduction to Electric Drive Motors in New Energy Vehicles With the rapid advancement of new energy vehicles (NEVs), electric drive motors have become one of the core components of electric vehicles (elbiler). The performance of these motors directly affects the efficiency, spekter, and overall driving experience of an EV. I motsetning til tradisjonell forbrenningsmotor (IS) […]
Introduction With the rapid development of the electric vehicle industry, the electric drive system sector has also made significant progress. Product technology continues to improve, the scale of industrial development is expanding, and new materials and processes are emerging. The trend of integration is becoming more evident. Due to the complexity of electric vehicle driving […]
De siste årene, with strong support from national policies, the pure electric vehicle industry has developed rapidly. Traditional fuel vehicle users are transitioning to NEV users, and as product technology advances, users’ operational habits and awareness should also improve. Tross alt, pure electric vehicles are still a relatively new product for many consumers. Med […]
1. Electric Vehicle Drive Motors 1.1 DC Motors Early electric vehicles (elbiler) often used DC motors due to their simple control mechanisms and low cost. The most common types include separately excited DC motors and series-wound DC motors. Imidlertid, the presence of a commutator and brushes leads to mechanical wear, requiring regular maintenance. These components […]
1. Introduction Lithium-ion batteries are widely used in various industrial applications, og deres sikkerhet har alltid vært et sentralt forskningstema. Studier har vist at mekanisk misbruk er en av hovedårsakene til kortslutninger i litiumbatterier under trafikkulykker. Mange studier har undersøkt mekanisk misbruk av batterier. Wang Zhenpo et al.. […]
Under flere påvirkninger av miljøvern og politikk, salgsvolumet av nye energibiler, spesielt elbiler, har vokst jevnt og trutt. Imidlertid, bak den raske utviklingen, kommentarene om elektriske kjøretøy har alltid vært blandede. For eksempel, de er energibesparende, men innkjøpskostnaden er for høy, de er miljømessige […]
This article mainly focuses on the same battery system, under the same temperature conditions and water cooling strategy, using environmental chambers of different specifications and sizes, to study the influence of different positions of the air outlet and different test layouts on the electrical performance test results of the battery system. 1. Theoretical Analysis As […]