Today on EV Engineering
Contactless Gigabit Ethernet demonstrated inside EV charging connectors
Uniqconn has demonstrated a contactless Gigabit Ethernet connection integrated into existing electric vehicle (EV) charging connectors, enabling high-speed data transmission without additional physical communication contacts, according to an announcement published by CharIN. The demonstration uses Uniqconn’s UC60 60-GHz wireless transceiver technology, with antennas positioned between existing charging contacts. The configuration is designed to support data…
How do 800-V EVs charge on 400-V dc fast chargers?
A 400-V-class dc fast charger cannot directly charge an 800-V electric vehicle (EV) battery when its maximum output falls below the pack voltage. Driving current into the pack requires the source voltage to exceed the battery’s by enough to overcome drops along the charging path. To achieve this, the EV boosts the incoming voltage or…
ITRI and eJoule advance high-nickel cathodes for EV batteries
The Industrial Technology Research Institute (ITRI) and eJoule Inc. are collaborating to develop longer-life nickel-manganese-cobalt (NCM) lithium-ion batteries for electric vehicles (EVs) and other applications. The partnership combines eJoule’s single-crystal cathode materials with ITRI’s electrode manufacturing and cell engineering capabilities to support the transition from material development to commercial production. The collaboration focuses on medium-…
Distributed electric bus charging system features 40 ceiling-mounted units
Kempower and Canadian sales and service partner EV-olution Charging Systems have deployed a 3-megawatt (MW) electric bus charging system for Société de transport de Lévis (STLevis) in Canada. The installation includes 40 ceiling-mounted Kempower Control Units equipped with cable retraction systems, designed to maximize available space within the existing transit depot while accommodating future electric…
The Battery Awards 2026 recognize advances in EV and battery technology
The Battery Show and Electric & Hybrid Vehicle Technology Expo North America have announced the winners of The Battery Awards 2026, recognizing developments in electric vehicle (EV) technology, battery manufacturing and related technologies. The awards cover several categories relevant to EV engineering, including vehicle design, charging, battery safety, materials and manufacturing. Winners in these categories…
FAQs See More >
How do 800-V EVs charge on 400-V dc fast chargers?A 400-V-class dc fast charger cannot directly charge an 800-V electric vehicle (EV) battery when its maximum output falls below…
How hydrogen fits into electric vehicle powertrainsHydrogen is increasingly appearing in heavy-duty vehicle electrification, particularly in applications where battery capacity and charging infrastructure present challenges. Although…
How do current-sensing errors propagate through EV motor control systems?Torque decisions in an electric vehicle (EV) traction drive often start from two or three-phase current readings, which leaves little…
EV Talk: Designing EV components with end of life in mindMaterial selection plays an important role in the performance of electric vehicle (EV) components, but engineers are increasingly being asked…
Mitigating high-frequency vibration in structural battery packsModern electric vehicle (EV) battery engineering revolves around removing layers of structure so more active cell material fits into the…
What causes bearing currents in EV motors and how engineers prevent themAn electric vehicle (EV) traction inverter can drive unwanted current through the motor bearings. Its switching creates voltage on the…
Probing considerations for double pulse testing SiC devices and modulesEditor’s note: Silicon carbide (SiC) power devices are widely used in electric vehicle (EV) traction inverters and other high-voltage power…
Five trends shaping conductive additives in batteriesConductive additives make up a small portion of a battery electrode, yet they play a significant role in cell performance.…
How do two-level and three-level inverter topologies compare in EVs?Whenever an electric vehicle (EV) battery bus exceeds 400 V, it poses powertrain design challenges for engineers. One of the…
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…
Batteries See More >
New high-voltage BMS reference design supports advanced EV battery modelingInfineon Technologies has introduced a high-voltage battery management system (BMS) reference design that enables advanced battery models to run directly…
ITRI and eJoule advance high-nickel cathodes for EV batteriesThe Industrial Technology Research Institute (ITRI) and eJoule Inc. are collaborating to develop longer-life nickel-manganese-cobalt (NCM) lithium-ion batteries for electric…
The Battery Awards 2026 recognize advances in EV and battery technologyThe Battery Show and Electric & Hybrid Vehicle Technology Expo North America have announced the winners of The Battery Awards…
Engineered disorder improves lithium-rich cathode performanceResearchers at Hanbat National University in South Korea have demonstrated that intentionally introducing disorder into lithium-rich cathode materials can improve…
Delta-Q adds Panasonic Energy to battery-charger compatibility programDelta-Q Technologies has added Panasonic Energy Sales Company of America (PECSA) to its Charged by Delta-Q battery compatibility program, expanding…
New sodium-ion cell architecture eliminates conventional anode materialMana Battery is developing an anode-free sodium-ion battery cell using a proprietary liquid electrolyte designed to improve energy density, stability…
Modular BMS supports 12 to 1,500-volt applicationsEberspächer Vecture has introduced GuardIon-IQ, a modular battery management system (BMS) designed to support battery systems operating from 12 to…
Mitigating high-frequency vibration in structural battery packsModern electric vehicle (EV) battery engineering revolves around removing layers of structure so more active cell material fits into the…
Capillary-driven cooling technology targets heat buildup in EV motorsAdeia Inc. has developed a capillary-driven cooling technology designed to improve heat removal within high-power electric vehicle (EV) motors. The…
GMG graphene battery cells achieve 94% energy efficiency during fast-charge testingGraphene Manufacturing Group (GMG) has released new test results showing that its graphene aluminium-ion G CELLS completed 1,000 charge-discharge cycles…
Rivian and Redwood expand EV battery recycling partnershipAmerican automaker Rivian and energy technology company Redwood Materials have expanded their partnership to include the recycling of Rivian’s manufacturing…
Patent granted for pCAM-free cathode manufacturing processDryve Battery Materials Inc. announced that it has received a foundational patent in the Republic of Korea for its pCAM-free…
Componentry See More >
Engineering challenges in EV high-voltage connections
High-voltage connections are critical to the performance and reliability of electric vehicle (EV) electrical systems. Engineers must consider how connectors handle electrical loads and maintain reliable operation throughout the vehicle’s service life. Higher-voltage architectures also introduce additional requirements for insulation and electromagnetic compatibility. This Q&A brings together six engineering questions, answered with excerpts from previously…
Technology News See More >
New high-voltage BMS reference design supports advanced EV battery modeling
Infineon Technologies has introduced a high-voltage battery management system (BMS) reference design that enables advanced battery models to run directly on the battery management unit (BMU). The system combines an AURIX TC4x microcontroller with a parallel processing unit (PPU) to support battery modeling, monitoring and control in electric vehicles (EVs). The reference design integrates a…
