In recent years, 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. After all, pure electric vehicles are still a relatively new product for many consumers. With the […]
1. Electric Vehicle Drive Motors 1.1 DC Motors Early electric vehicles (EVs) 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. However, 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, and their safety has always been a key research topic. Studies have shown that mechanical abuse is one of the main causes of short circuits in lithium batteries during traffic accidents. Many studies have investigated the mechanical abuse of batteries. Wang Zhenpo et al. […]
Under the multiple influences of environmental protection and policies, the sales volume of new energy vehicles, especially electric vehicles, has been rising steadily and growing rapidly. However, behind the rapid development, the comments on electric vehicles have always been mixed. For example, they are energy-saving but the purchase cost is too high, they are environmentally […]
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 […]
Preface In recent years, new energy vehicles have been booming under the guidance of national policies. Currently, most electric commercial vehicles, such as pure electric buses, pure electric logistics vehicles, and pure electric road sweepers, adopt pneumatic braking systems and pneumatic door control systems. The electric air compressor system (hereinafter referred to as the electric […]
The adoption of new energy vehicles (NEVs) is reshaping the automotive landscape, with a strong emphasis on eco-friendly materials and reduced emissions. This article delves into the advancements in chassis technology, discussing its evolution, the impact of modern materials and processes, and the critical role of innovative designs in optimizing NEV performance. 1. Evolution of […]
This article explores the constraints on power battery cooling through experimental and numerical studies, focusing on temperature and velocity distribution within microchannel cold plates on square lithium-ion battery cells. The analysis investigates cooling performance at 1C and 2C discharge rates under working temperatures of 5°C, 15°C, and 25°C, using both experimental setups and simulations. Abstract […]
With the rapid development of new energy vehicles (NEVs) and the growing demand for grid energy storage, the need for batteries with higher energy density and greater safety has become increasingly urgent. According to the “Energy-Saving and New Energy Vehicle Technology Roadmap” released by China’s Ministry of Industry and Information Technology (MIIT), single-cell energy density […]
Over the past few years, the growing popularity of electric vehicles (EVs) has brought attention to some of their unique features and design choices. One topic that often sparks curiosity is why EVs generally do not include spare tires. This article explores the reasoning behind this design decision, examines alternative solutions provided by manufacturers, and […]