Mild hybrid electric vehicle 48V (MHEV)
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Configurations in the powertrain of MHEVs and auxiliary applications
In the past, the 48V vehicle electrical system has focused primarily on P0 (Belt-driven integrated Starter Generator, BiSG) and P1 (Crankshaft-mounted integrated Starter Generator, CiSG) configurations in the powertrain of Mild Hybrid Electric Vehicles (MHEV). The motivation for this was the cost advantage, especially the P0 configuration, compared to Battery Electric Vehicles (BEV) or Plug-in Hybrid Electric Vehicles (PHEV), the lower development effort, and the immediate CO2 reduction potential for the vehicle fleet.
Today, we observe a trend to Driveline-mounted P2 - P5 configurations which are positioned after the clutch on the input shaft of the transmission (P2), on the output shaft of the transmission (P3), on the rear axle (P4), or in wheel drive (P5). The benefit of these configurations is higher electrical efficiency compared to P0/ P1 and the capability of recuperating electrical energy with the engine off during coasting. Along with the introduction of Driveline-mounted P2 – P5 configurations, auxiliary applications enter the 48V electric system combined with a 48V Power Distribution (either as the separate box or integrated into the Battery Management, like a Fuse Box).
The main target of the auxiliary 48V applications has been further CO2 reduction, but at the same time, some are used for additional comfort functions, increased drive dynamics, and scalable Four Wheel Drive without CO2 increase.
48V automotive power MOSFETs solutions
Infineon introduces its solutions for starter generators used for 48 V mild-hybrid electric vehicles: 48 V systems enabled by chip embedding, 48 V starter alternator with smart p² Pack® technology (chip embedding in PCBs of SCHWEIZER ELECTRONIC AG) with peak power up to 50 kW; and 48 V starter alternator
In this training you will:
- Know more about Infineon’s wide MOSFET selection for 48 V mild-hybrid electric vehicle, or MHEV, applications
- Understand why and how Infineon is strengthening its position in the 40 V MOSFET market, and be familiar with Infineon’s newest 60 V MOSFETs