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Power electronics

High-voltage traction inverter

The high-voltage inverter converts direct current (DC) from the batteries or generator to alternating current (AC) to power the traction drive motors. With Eaton’s established analytical skills, our background with power electronics and automotive expertise, we have developed a new family of inverters to support automotive plug-in hybrid (PHEV) and battery electric (BEV) automotive applications which are in serial production, as well as 800V inverters for commercial vehicles.

Power dense
Meets power needs with minimal space required
Efficient
Optimized use of battery to increase maximize EV range
Flexible
Smarter, scalable package design that’s easier to implement

Core features

  • Up to 98% efficiency
  • 80-300kW, 400V and 800V automotive inverters
  • ISO 26262 and AUTOSAR compliant
  • Operating temperatures of -40ºC to 110ºC
  • Coolant temperature to 70ºC with 10L per minute flow rate
  • IGBT and silicon carbide (SiC)
  • Custom and integrated aluminum enclosures

    Specifications
    Specification BEV Inverter PHEV Inverter
    Power peak (10s) 130 kW (peak) / 66 kW (continuous) 92kW (peak) / 45 kW (continuous)
    Voltage range (nominal perf.) 260V – 454V 260V – 420V
    Max current 410 Arms/phase 373 Arms/phase
    Functional safety ISO 26262 / ASIL C ISO 26262 / ASIL C
    IGBT switching frequency  10kHz 10kHz-15kHz
    Power module Si IGBT, Dual Sided Indirect Cooling Si IGBT, Dual Sided Indirect Cooling
    NVH, EMI/EMC OEM customer standards OEM customer standards
    Controls OEM provides motor controls. Eaton provides base software application. OEM provides motor controls. Eaton provides base software application.
    Temp range -40 to 85 C -40 to 125 C
    Packaging volume Provided by OEM Provided by OEM
    Cooling Liquid 8L/min @ <70°C Liquid 6L/min @ <65°C
    Motor speed 14krpm (700Hz electrical) 20krpm (1.333kHz electrical)
    Base software AUTOSAR AUTOSAR
    Specifications Commercial Vehicle Inverter
    Peak power 300 kW
    Continuous power 250 kW
    Nominal operating voltage 700V
    Operating voltage range 600V to 850V
    Peak output current 540 Arms @ 600V
    Continuous output current 450 Arms @ 600V
    Low voltage control input range 9-32V
    High voltage (DC) interlock protection Yes on DC connector
    Derating feature Yes
    Switching frequency Up to 15kHz
    Coolant medium Water/Glycol
    Operating ambient temperature range -40C to 85C
    Coolant temperature range -30C to 60C
    Coolant flow rate Up to 24LPM
    CAN protocol J1939
    Ingress protection IP67
    Motor position sensor interface Resolver with sensor excitation
    Maximum operating altitude 4000 m
    EMC CISPR 25
    Functional safety compliance ASIL C (complies with ISO26262)
    Autosar compliance Yes (V4.X)
    Cyber-security compliance Development process complies with ISO 21434
    Secure boot Yes
    Passive discharge 120s
    Active discharge 2s (500uF)
    Secure boot Yes
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