Today on EV Engineering
Semi-dry braking architecture reduces residual brake drag
AUMOVIO has developed a semi-dry brake system that combines electromechanical braking with a conventional hydraulic front axle, using active brake-pad clearance to reduce residual drag in electric vehicles (EVs). The system uses a near-production electromechanical brake on the rear axle. Instead of relying on hydraulic pressure, an electric motor actuates the rear brake caliper, eliminating…
Mercedes-Benz to test ProLogium Gen4 solid-state cells for future EVs
Mercedes-Benz and ProLogium have signed a joint testing agreement covering ProLogium’s latest Gen4 solid-state battery cells, with the automaker evaluating the technology for potential use in future electric vehicles (EVs). Testing will include electrical, thermal and safety evaluation at Mercedes-Benz facilities and external test institutes. Mercedes-Benz will receive priority access to the Gen4 cells as…
Automotive rectifiers combine low forward voltage with high avalanche capability
Diodes Incorporated has introduced a family of AEC-qualified field-plated Super Barrier Rectifiers designed for automotive power systems. The devices are intended as drop-in replacements for comparable Schottky and PN junction diodes, with lower conduction losses, and reduced reverse leakage. The family spans 2 A, 3 A, and 8 A ratings and is designed for applications…
Battery intelligence software adds deeper health data to EV battery passports
Qnovo has introduced a new software application built on its Battery Genome platform to give automakers a more detailed view of electric vehicle (EV) battery condition and residual value. The application is intended to address limitations in battery assessments based largely on age, mileage, and other relatively sparse data. Batteries with similar vehicle histories can…
Why e-axle fluids have become an EV engineering problem
Electric vehicle (EV) drive units keep getting smaller and more integrated, and that’s changed what the fluid inside them has to do. In a conventional gearbox, lubricant selection mostly comes down to protecting the gears while keeping friction losses in check. An e-axle can put that same fluid right next to the electric motor, where…
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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…
What is connector derating, and why does it matter in EVs?Connector derating is a common engineering technique that reduces allowable current below the datasheet value to account for real-world operating…
Part II: Inside the engineering of a magnet-free EV motorIn this two-part series, we examine the engineering behind a rare-earth-free electric vehicle (EV) motor and the trade-offs involved in…
Batteries See More >
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…
Advancing automotive battery cell productionNEO Battery Materials has secured a purchase order valued at approximately CAD 392,000 from an existing North American Fortune 500…
Novelis expands coated aluminum for EV battery componentsNovelis has expanded its coated aluminum portfolio for EV battery applications, with materials designed for structural and electrical components within…
Scaling all-solid-state battery manufacturingFactorial Energy and Mitsui Kinzoku Company have entered a joint development agreement to support the industrialization of Factorial’s Solstice all-solid-state…
Georgia facility advances lithium carbonate recovery from used batteriesTDK Ventures has invested in R3 Lithium as part of the company’s $15 million Series A funding round, supporting the…
New collaboration advances US synthetic graphite anode developmentNOVONIX Limited and ACP Technologies have signed a non-binding memorandum of understanding to develop synthetic graphite anode active materials and…
Componentry See More >
Automotive rectifiers combine low forward voltage with high avalanche capability
Diodes Incorporated has introduced a family of AEC-qualified field-plated Super Barrier Rectifiers designed for automotive power systems. The devices are intended as drop-in replacements for comparable Schottky and PN junction diodes, with lower conduction losses, and reduced reverse leakage. The family spans 2 A, 3 A, and 8 A ratings and is designed for applications…
Technology News See More >
Researchers improve anode-free lithium metal battery stability
Researchers patterned copper current collectors with nanoscale structures and an MXene coating to suppress lithium dendrite growth without adding excess lithium. A research team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a method for extending the cycle life of anode-free lithium metal batteries by applying ultrafine fabrication processes from semiconductor…
