Today on EV Engineering
BMW and Lumissil demonstrate battery communication without dedicated wiring
Lumissil Microsystems and BMW Group have demonstrated power line communication (PLC) across BMW’s Gen6 800-V battery system, using existing electrical connections to transmit data between the battery management system (BMS) controller and individual cell-monitoring circuits. The approach eliminates the need for dedicated communication wiring within the battery pack. It could simplify electrical connections and reduce…
Trench-based SiC technology reduces power losses by up to 35%
onsemi has introduced EliteSiC M4, its fourth-generation silicon carbide (SiC) technology platform for power conversion applications, including electric vehicle (EV) traction inverters. Based on a trench architecture, the platform is designed to reduce conduction and switching losses while increasing power density. Compared with the previous generation, EliteSiC M4 delivers up to 30% higher power density…
EV charging communication reference design integrates ISO 15118 software
Lumissil Microsystems has been selected by Zaptics to provide Green PHY power-line communication (PLC) technology for an electric vehicle communication controller (EVCC) reference design. The system is intended to simplify the development of vehicle-side charging communication systems compliant with ISO 15118. Zaptics has developed two EVCC products using Lumissil’s CG5317 Green PHY technology. Both incorporate…
Battery evaluation kit combines DCIR and EIS measurements
Dukosi has introduced a dc internal resistance (DCIR) and electrochemical impedance spectroscopy (EIS) evaluation kit for lithium-ion battery development, including battery packs used in electric vehicles (EVs). The kit allows engineers to evaluate cell-level measurements using Dukosi’s Smart Cell chip-on-cell monitoring technology. The evaluation kit provides DCIR measurements that give battery management systems (BMS) information…
Hall-effect current sensors measure up to ±50 A in EV charging systems
Diodes Incorporated has introduced the AHC1724Q and AHC1725Q automotive-compliant Hall effect current sensors for electric vehicle (EV) charging applications. The devices provide galvanically isolated ac and dc current measurement for onboard chargers and charging stations, with low conductor resistance to reduce power losses. Both sensors integrate a low-resistance copper conduction path with a linear Hall…
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How has NACS evolved into the SAE J3400 EV charging standard?Editor’s note: This article was originally published in November 2023. It is updated here to reflect the publication of SAE…
How AI surrogate models can speed up EV battery cooling designCooling design has a direct effect on how an electric vehicle (EV) battery pack handles fast charging and high loads,…
How does impedance spectroscopy detect early EV battery degradation?A battery management system (BMS) normally judges cell health from terminal voltage, current, and temperature. From these readings, capacity fade…
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…
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All-solid-state EV battery demonstrates 1,000 cycles at atmospheric pressureQuantumScape has introduced Osprey, an all-solid-state lithium-metal battery platform designed for automotive applications. The technology combines the company’s ceramic separator…
BMW and Lumissil demonstrate battery communication without dedicated wiringLumissil Microsystems and BMW Group have demonstrated power line communication (PLC) across BMW’s Gen6 800-V battery system, using existing electrical…
Battery evaluation kit combines DCIR and EIS measurementsDukosi has introduced a dc internal resistance (DCIR) and electrochemical impedance spectroscopy (EIS) evaluation kit for lithium-ion battery development, including…
New patent covers silicon-enhanced graphite manufacturing processFocus Graphite has received a Canadian patent covering its silicon-enhanced graphite anode materials and manufacturing process for lithium-ion batteries. Canadian…
LG Energy Solution expands cylindrical battery production for EVsLG Energy Solution has outlined plans to expand cylindrical battery manufacturing for electric vehicles (EVs), including the start of US…
Lithium-metal battery testing demonstrates fast charging at 3.6CBlue Solutions has released new fast-charging test results for its Gen4 lithium-metal battery technology, which is being developed for electric…
How does impedance spectroscopy detect early EV battery degradation?A battery management system (BMS) normally judges cell health from terminal voltage, current, and temperature. From these readings, capacity fade…
DOE unveils national battery strategy and manufacturing acceleratorThe US Department of Energy (DOE) has released a national battery strategy and launched the Battery Manufacturing Accelerator (BattMan) to…
High-voltage coolant heaters provide battery and cabin heating for EVsKLC Corporation (Taiwan King Lung Chin PTC Co., Ltd.), a Taiwan-based thermal management manufacturer, has highlighted its high-voltage coolant heaters…
Graphite One advances $80 million US battery anode facilityGraphite One Inc. has received the final air permit from the Ohio Environmental Protection Agency for the first phase of…
New failure criteria predict EV battery short-circuit risk after mechanical impactResearchers at Temple University have developed a method for predicting the probability of internal short circuits in lithium-ion batteries following…
LG Energy Solution opens 2026 battery research competitionLG Energy Solution has opened applications for its Battery Innovation Contest (BIC) 2026, inviting universities and research institutions worldwide to…
Componentry See More >
Hall-effect current sensors measure up to ±50 A in EV charging systems
Diodes Incorporated has introduced the AHC1724Q and AHC1725Q automotive-compliant Hall effect current sensors for electric vehicle (EV) charging applications. The devices provide galvanically isolated ac and dc current measurement for onboard chargers and charging stations, with low conductor resistance to reduce power losses. Both sensors integrate a low-resistance copper conduction path with a linear Hall…
Technology News See More >
All-solid-state EV battery demonstrates 1,000 cycles at atmospheric pressure
QuantumScape has introduced Osprey, an all-solid-state lithium-metal battery platform designed for automotive applications. The technology combines the company’s ceramic separator and anode-free lithium-metal architecture with a solid cathode, addressing some of the challenges associated with sulfide-based solid-state batteries. In early testing, Osprey unit cells completed 1,000 full charge cycles with approximately 80% capacity retention while…
