14.30 Jochen Krings - Daimler Truck.pdf

1、DAIM LERT RU C KEliminating Bottlenecks at CJochen Krings|Daimler Truck|03.12.2024Afternoon Panel:Eliminating Cooling Bottlenecks to Ultra Fast and Megawatt ChargingHeat loss reduction at high charging currents at charging inlets of electric vehiclesWrmeverluste reduzieren bei hohen Ladestrmen an E-

2、Fahrzeug LadedosenDaimler TruckElectric Driving Range:500 km range1with 3x200 kWh battery 750V1500kg battery weight eachCharging Power:MCS2 1000kWunder 30 minutes(20 to 80%SoC3)CCS2 425kWMercedes-Benz eActros 6001on internal Longhaul cycle with 40t GCW(gross combination weight)2MCS=Megawatt Charging

3、 System,standard is CCS=Combined Charging System 3SoC=State of ChargeThermal Management Expo|Eliminating Bottlenecks at Charging|Jochen Krings|Stuttgart|03.12.20242Charging Power Charging EfficiencyHeat Losses100-200kW 98%2-4kW 500kW 95%25 kW 1000kW90%100 kW 100kW heat loss equals 8-16 individual ho

4、use heating systemsDaimler TruckPosition CCS and MCS inletThermal Management Expo|Eliminating Bottlenecks at Charging|Jochen Krings|Stuttgart|03.12.20243Daimler Truck4Thermal Management Expo|Eliminating Bottlenecks at Charging|Jochen Krings|Stuttgart|03.12.2024Plug Connectioncharging guncontact spri

5、ngscontact pincharging inletcontact pin temperature sensorCCS:max.90C/MCS:max.100CDaimler Truck5Thermal Management Expo|Eliminating Bottlenecks at Charging|Jochen Krings|Stuttgart|03.12.2024Optimization options for componentsPELECTRICAL=I2 RELECTRICALReduction of resistance leads to:lower heat losse

6、slonger charging at high current until temperature limit is reached Daimler TruckDetailed view of contact partners6Thermal Management Expo|Eliminating Bottlenecks at Charging|Jochen Krings|Stuttgart|03.12.2024Electrical resistanceelectrical contact resistance=surface contamination resistance+constri