(Cost)-Efficient System Solutions e.g. Integrated Battery Management, Communication and Module Supply for the 48V Power Supply in Passenger Cars

Gall, Harald; Brandl, Manfred; Jaiser, Martin; Winter, Johann; Reinprecht, Wolfgang; Zehetner, Josef

doi:10.1007/978-3-319-08087-1_14

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“…The 48/12 V dual-voltage architecture includes two batteries (48 V and 12 V batteries). Various different structures with multiple energy storage devices have been reported for electrified vehicles in the literature [1], [6], [8]- [16]. A typical structure for the dual supply net with a single 48V alternator is exemplified in Fig.…”

Section: Introductionmentioning

confidence: 99%

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A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

Kim

Kwak

2017

IEEE Trans. Veh. Technol.

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Due to an increasing in-vehicle electric load demand, a new 48 V electric system architecture proposed by German premier car manufacturers has been gaining increasing attention recently for electrified vehicles. In this paper, a multiple voltage bus converter for the 48 V and existing 12 V dual supply system, providing additional flexible dc bus voltages, is proposed. The proposed converter can provide a dual flexible dc voltage bus and an additional dependent voltage bus while simultaneously managing the 12 V supply net using just one single leg switch pole and a diode. The additional dc voltage buses will provide more options to accommodate variable electric load components in a vehicle improving their power density. Due to the multiple control objectives, the single leg pole requires a multimode switching strategy to regulate the additional bus voltages. To improve the on-board vehicle system reliability and performance, an impedance network structure is implemented in the converter to obtain a dead time free PWM (pulse width modulation). Simulation and experimental results are presented to verify the feasibility and effectiveness of the proposed structure and control methods.Index Terms--48 V power supply, dual supply net, more electric vehicles. Since 2010, he has been with Chung-ang University, Seoul, Korea, currently as an Associate Professor. His research interests are topology design, modeling, control, and analysis of ac/dc, dc/ac, ac/ac power converters including resonant converters for adjustable speed drives and digital display drivers as well as modern control theory applied to DSP-based power electronics.

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Section: Introductionmentioning

confidence: 99%

“…Fig. 1 Typical dual voltage (48 V and 12 V) architecture using two batteries and a single alternator [8].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

Kim

Kwak

2017

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

show abstract

(Cost)-Efficient System Solutions e.g. Integrated Battery Management, Communication and Module Supply for the 48V Power Supply in Passenger Cars

Cited by 1 publication

References 1 publication

A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

A Flexible Voltage Bus Converter for the 48-/12-V Dual Supply System in Electrified Vehicles

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