Today on EV Engineering
How does fault-tolerant control keep an EV operating after a sensor failure?
The rotor in an electric vehicle (EV) traction motor delivers torque through the motor shaft to the drivetrain. A rotor-position sensor, such as a resolver, reports the rotor angle needed for accurate torque control. If the sensor fails, fault-tolerant firmware can substitute a model-based estimate. This article reviews how the inverter controller detects a failed…
Fast-charging system reaches 750 kW with shared power
EVgo has previewed a new fast-charging system capable of delivering up to 750 kW. The architecture is being designed, developed, and tested at the company’s Innovation Lab in El Segundo, California, with support from Delta Electronics. The system will use dynamic power sharing to adjust energy distribution in real time based on the charging needs…
Automotive current transformer offers 1,800 Vrms isolation
Coilcraft has introduced the CSX7045 series of current-sensing transformers for high-performance power electronics and automotive applications. The series is designed for use in dc-dc converters, motor drives, inverters, and power management circuits, making it relevant to electric vehicle (EV) power electronics where accurate current measurement is required across high-current switching systems. The CSX7045 provides 1,800…
Remote diagnostics platform simplifies EV charger service
Alfen’s Eve Control platform allows operators to manage charging stations remotely through a web-based interface. The system is now being used across customer charging networks. Eve Control lets users adjust supported charger settings without sending a technician to the site. It also provides charger information and diagnostic tools that can help determine whether an issue…
How motor selection shapes system performance
Electric motor selection often starts with datasheet ratings like peak power, torque, and speed range. These values are required for design, but they aren’t sufficient on their own. In an electrified or hybrid platform, the motor doesn’t operate in isolation. It’s one part of a coupled electromechanical system that also includes the inverter, energy storage,…
FAQs See More >
How does fault-tolerant control keep an EV operating after a sensor failure?The rotor in an electric vehicle (EV) traction motor delivers torque through the motor shaft to the drivetrain. A rotor-position…
How motor selection shapes system performanceElectric motor selection often starts with datasheet ratings like peak power, torque, and speed range. These values are required for…
Why e-axle fluids have become an EV engineering problemElectric vehicle (EV) drive units keep getting smaller and more integrated, and that’s changed what the fluid inside them has…
How to catch EV faults before they become failuresMost electric vehicle (EV) battery failures do not happen out of nowhere. Long before a pack trips into a protective…
How do busbar design and stray inductance affect EV power electronics?Silicon carbide (SiC) or gallium nitride (GaN) switching operations are limited by the busbar stray inductance because the inductance is…
Engineering reliable charging hubs for autonomous EV fleetsAutonomous ride-hailing fleets need somewhere to recharge between trips, and that’s often a dedicated charging hub rather than a public…
How is EV charging interoperability tested?A connector that physically fits an electric vehicle (EV) inlet does not guarantee a safe, successful charging session. Electrical or…
How to accelerate film capacitor design with simulationEditor’s note: Film capacitors are critical to electric vehicle (EV) power-electronics systems, particularly in dc-link and inverter applications, where component…
How can EV systems be reliably tested for cybersecurity vulnerabilities?Electric vehicle (EV) cybersecurity testing is performed throughout the vehicle development lifecycle. EVs can contain dozens of electronic control units…
How do high-voltage interlock loops protect EV electrical systems?Hybrid and electric vehicle (EV) powertrains carry high-voltage circuits, often rated at 400 volts (V) and rising to 800 V…
Where force and torque measurement matters in vehicle validationSimulation gives automotive engineers a way to evaluate vehicle designs before physical prototypes are built. The value of those models…
How brake-by-wire is changing regenerative braking control and validationRegenerative braking gives an electric vehicle (EV) another way to slow down while returning energy to the battery. In some…
Batteries See More >
Xnovo deploys 3D-CT battery cell inspection system at BMW facilityXnovo Technology has deployed an automated 3D computed tomography (3D-CT) inspection system at the BMW Group‘s Cell Manufacturing Competence Centre…
New battery communication system replaces wired BMS connectionsDukosi has introduced DK-NFLNK, a contactless communication solution for modular battery systems used in electric vehicles (EVs), industrial and marine…
PACT to bring lithium-ion battery fire safety products to The Battery ShowPackaging and Crating Technologies (PACT) will present its latest lithium-ion battery fire mitigation products at The Battery Show North America…
White paper calls for new reliability testing approach for EV BMSThe Global Electronics Association has released a new white paper examining reliability challenges in battery management systems as electric vehicle…
Coesia to showcase integrated battery manufacturing at The Battery ShowCoesia will showcase a range of manufacturing technologies at The Battery Show North America, designed to support higher-volume lithium-ion battery…
Researchers improve anode-free lithium metal battery stabilityResearchers patterned copper current collectors with nanoscale structures and an MXene coating to suppress lithium dendrite growth without adding excess…
Mercedes-Benz to test ProLogium Gen4 solid-state cells for future EVsMercedes-Benz and ProLogium have signed a joint testing agreement covering ProLogium’s latest Gen4 solid-state battery cells, with the automaker evaluating…
Battery intelligence software adds deeper health data to EV battery passportsQnovo has introduced a new software application built on its Battery Genome platform to give automakers a more detailed view…
Cabot expands US production of battery conductive additivesCabot Corporation plans to expand domestic production of battery-grade conductive additives at its facilities in Franklin, Louisiana, and Pampa, Texas,…
How to catch EV faults before they become failuresMost electric vehicle (EV) battery failures do not happen out of nowhere. Long before a pack trips into a protective…
CATL starts trial production at 100-GWh EV battery cell plantcatl.com has started trial production of battery cells at its new manufacturing facility in Debrecen, Hungary, as it prepares the…
Closed-loop pilot returns recycled battery materials to new cellsGeneral Motors (GM) and Cirba Solutions have completed a closed-loop electric vehicle (EV) battery recycling pilot that uses recovered critical…
Componentry See More >
How does fault-tolerant control keep an EV operating after a sensor failure?
The rotor in an electric vehicle (EV) traction motor delivers torque through the motor shaft to the drivetrain. A rotor-position sensor, such as a resolver, reports the rotor angle needed for accurate torque control. If the sensor fails, fault-tolerant firmware can substitute a model-based estimate. This article reviews how the inverter controller detects a failed…
Technology News See More >
Xnovo deploys 3D-CT battery cell inspection system at BMW facility
Xnovo Technology has deployed an automated 3D computed tomography (3D-CT) inspection system at the BMW Group‘s Cell Manufacturing Competence Centre (CMCC) in Parsdorf, Germany. The system combines deep learning, image processing, and high-throughput computing for quality assurance of battery cells on the production floor. 3D-CT provides a non-destructive method for inspecting the internal structure of…
