Batteries undergo extensive testing before they are installed in electric vehicles (EVs). This article examines the various types of battery tests that ensure EV batteries remain safe and function reliably for years. It covers mechanical testing, … [Read more...]
Part I: What are the different types of tests performed on EV batteries?
Battery testing for electric vehicles (EVs) has evolved from simple charging and discharging tests to advanced systems that simulate how EVs drive on roads. Recent testing equipment monitors important electrical values, such as state-of-charge (SOC), … [Read more...]
What is cell balancing in a BMS and why is it important?
Cell balancing refers to the process of equalizing the charge across all cells in an electric vehicle (EV) battery pack, ensuring each cell charges and discharges at the same rate. The process is beneficial in a battery management system (BMS) to … [Read more...]
How electrolyte additives can extend the lifespan of EV batteries
Electrolyte additives can help extend the life of electric vehicle (EV) batteries by stabilizing the electrode-electrolyte interfaces and mitigating the adverse side reactions that cause battery degradation over time. This article focuses on how … [Read more...]
How semiconductor materials affect EV power electronics?
Different semiconductor materials have different properties that affect their thermal performance and power efficiency for electric vehicle (EV) applications. Notable material properties include bandgap energy, critical electric field, electron … [Read more...]
How do onboard chargers differ between 400 and 800-V EV architectures?
The 800-V onboard chargers (OBCs) are steadily gaining momentum for fast and ultra-fast charging of electric vehicles (EVs). However, moving from existing 400 to 800-V OBCs directly affects the choice of semiconductor devices, diode bridges, … [Read more...]
How could advances in solid-state batteries impact EV charging designs and requirements?
Batteries are a key element in electric vehicles (EVs), and there has been a lot of development in solid-state and other EV battery chemistry. This FAQ will highlight the promising materials that align with solid-state and other EV batteries, making … [Read more...]
How does ac bus-based architecture impact charging infrastructure for EVs?
The ac bus-based architecture for EV charging is a crucial component of the EV infrastructure, enabling the efficient and reliable charging of electric vehicles. This artile will discuss the pros and cons of the architecture and then will dive into a … [Read more...]
How can hardware-in-the-loop support EV drive application testing?
Hardware-in-the-loop (HIL) testing is a sophisticated real-time simulation technique used extensively in developing and validating power electronics systems. It lets engineers test embedded control systems without physical hardware -- reducing risks, … [Read more...]
How can liquid cooling be applied to charging cables during dc fast charging?
Integrating a liquid coolant system into the cable assembly and connector housing of electric vehicle (EV) charging infrastructure moves coolant around the high-current wires and connectors. The liquid coolant circulates through jackets or channels … [Read more...]
Why is compensation required for wireless power transfer during EV charging?
The primary goals of compensation in wireless power transfer (WPT) for electric vehicles (EVs) are to improve power transfer efficiency, reduce reactive power, and ensure stable operation under varying conditions, such as load changes and coil … [Read more...]
Which components are involved in EV charging power management?
Electric vehicle (EV) charging infrastructure consists of several individual power management components. Dc power electronics are the heart of power management, whereas charge controllers assist the dc power electronics in proper control. The role … [Read more...]
What is the role of interconnects in electric vehicle battery systems?
An electric vehicle (EV) battery pack consists of several individual cells connected in series or parallel. This article highlights using interconnects to bind the individual cells and provide electrical, mechanical, and thermal support to the … [Read more...]
How do infotainments and non-safety sensors enhance the EV experience?
This article will discuss how infotainments and non-safety sensors offer a better electric vehicle (EV) driving experience. Despite many ongoing efforts to increase the EV range and safety, enhancing the driving experience is also gaining momentum to … [Read more...]
How does a position lock sensor work during EV charging?
The position lock sensor detects whether the electric vehicle (EV) charging connector is properly locked into place during the charging process. This safety feature prevents accidental disconnection or removal of the charging cable while charging is … [Read more...]
What are the key components and considerations involved in power management for EVs?
Electric vehicles (EVs) have several components that deal exclusively with power management. The components include: A battery pack A battery management system (BMS) Power electronics Electric motors A regenerative braking system … [Read more...]