Today on EV Engineering
GM’s fourth-generation EV platform introduces new battery chemistry
General Motors (GM) has outlined the engineering developments behind its fourth-generation electric vehicle (EV) platform, including lithium manganese-rich (LMR) battery cells and redesigned electric drive units. The company expects the integrated design to deliver approximately 20% more driving range per kilowatt-hour of battery energy compared with its current EVs. The platform will use LMR chemistry…
Delta-Q adds Panasonic Energy to battery-charger compatibility program
Delta-Q Technologies has added Panasonic Energy Sales Company of America (PECSA) to its Charged by Delta-Q battery compatibility program, expanding its work on validated battery-charger combinations for electric vehicles (EVs) and off-highway equipment. The collaboration is intended to help North American original equipment manufacturers (OEMs) integrate lithium-ion batteries with compatible charging systems. Target applications include…
How hydrogen fits into electric vehicle powertrains
Hydrogen is increasingly appearing in heavy-duty vehicle electrification, particularly in applications where battery capacity and charging infrastructure present challenges. Although hydrogen-powered trucks are often discussed separately from electric vehicles (EVs), those using fuel cells still rely on electric motors for propulsion. The difference is how the electricity is supplied. A battery electric vehicle (BEV) stores…
Battery-electric truck enters pilot testing with hydrogen fuel-cell system
VTT Technical Research Centre of Finland is leading a pilot project involving the SISU Escalate heavy-duty electric truck, which combines a 650-kWh rechargeable battery with a 120-kW hydrogen fuel-cell system. The vehicle is designed to operate primarily on battery electricity, using hydrogen as a secondary energy source during longer journeys. Manufactured by Sisu Auto, the…
Compact safety capacitors provide EMI filtering for EV chargers
TDK has introduced the B3201*A5/B5/C5 series of Y1 safety capacitors designed to suppress electromagnetic interference (EMI) in electric vehicle (EV) power electronics. The components are intended for use in onboard chargers and EV charging infrastructure, where electrical noise must be controlled in high-voltage power conversion circuits. The metallized polypropylene (MKP) film capacitors are rated for…
FAQs See More >
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…
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…
Batteries See More >
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…
Researchers develop aluminum anode technology for lithium-ion batteriesResearchers at the Fraunhofer Institute for Manufacturing Engineering and Automation (IPA) and the University of Stuttgart have developed and patented…
ProLogium and Rimac advance solid-state EV battery developmentProLogium and Rimac Technology have completed a battery pack concept mockup as part of their collaboration to develop battery systems…
Battery-swapping technology receives sustainability awardHonda‘s Mobile Power Pack e: (MPP) swappable battery system has received the Sustainability & Circular Economy Excellence Award at The…
Sakuu develops dry-printed battery cell with carbon fiber electrodesSakuu has produced a fully dry-printed lithium-ion battery cell using carbon fiber and a polymeric current collector (PCC) on its…
Componentry See More >
Compact safety capacitors provide EMI filtering for EV chargers
TDK has introduced the B3201*A5/B5/C5 series of Y1 safety capacitors designed to suppress electromagnetic interference (EMI) in electric vehicle (EV) power electronics. The components are intended for use in onboard chargers and EV charging infrastructure, where electrical noise must be controlled in high-voltage power conversion circuits. The metallized polypropylene (MKP) film capacitors are rated for…
Technology News See More >
Aluminium-intensive EV design could reduce battery capacity by 15%
A joint theoretical study by Alumobility and Stellantis has found that an aluminium-intensive vehicle architecture could reduce battery capacity by 15% while maintaining equivalent driving range. The findings demonstrate how reducing structural weight in a battery-electric vehicle (BEV) can create opportunities to optimize other vehicle systems. Using Stellantis’ STLA Medium platform as a steel-based reference,…
