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**Harvard**

Shukla, T. (2017) *Simulating & Evaluating feasibility to integrate charging of 12V battery with 48V drivetrain for Dual Voltage 48V/12V Mild Hybrid vehicles*. Göteborg : Chalmers University of Technology

** BibTeX **

@mastersthesis{

Shukla2017,

author={Shukla, Tanmay},

title={Simulating & Evaluating feasibility to integrate charging of 12V battery with 48V drivetrain for Dual Voltage 48V/12V Mild Hybrid vehicles},

abstract={Dual voltage energy storage systems have become common in mild hybrid vehicles
due to their advantages such as increased stability and reliability of the system. They
serve a viable solution for increasing demand of power for Mild hybrid vehicles. The
dual voltage in mild hybrids contains two level of voltages; 48V battery is used
for electrical drivetrain and 12V battery is used to power auxiliary system of the
vehicles. The demand for power for these auxiliary systems is increasing due to
additional safety systems implemented in the car and hence, it is crucial to have
required level of SOC for 12V battery. In current system, this is achieved by a
separate dc/dc converter unit to charge the 12V battery pack. But, this unit is
quite bulky and costly and hence, it is required to find an alternate solution to
charge the 12V battery without using a separate dc/dc converter.
This thesis focuses on investigating on an integrated charger topology suitable to
charge 12V battery for Mild hybrid Dual voltage 48V/12V system. It also checks
the feasibility of the topology to charge the 12V battery continuously under three
modes of motor operation; Motoring mode, Regeneration mode and idle mode. The
work mainly focuses on developing a simulation model which can simulate different
modes of motor for mild hybrid vehicle for charging the 12V. The motivation behind
the thesis is to integrate the 12V charging with 48V drivetrain which will reduce the
overall size and cost of the drivetrain system. The analysis is done based on charger
efficiency and generation of ripple for the three modes of motor operation.},

publisher={Institutionen för elektroteknik, Elkraftteknik, Chalmers tekniska högskola},

place={Göteborg},

year={2017},

keywords={Mild Hybrid vehicles, Dual voltage energy storage systems, Integrated Charger topology, Common mode voltage},

note={48},

}

** RefWorks **

RT Generic

SR Electronic

ID 254950

A1 Shukla, Tanmay

T1 Simulating & Evaluating feasibility to integrate charging of 12V battery with 48V drivetrain for Dual Voltage 48V/12V Mild Hybrid vehicles

YR 2017

AB Dual voltage energy storage systems have become common in mild hybrid vehicles
due to their advantages such as increased stability and reliability of the system. They
serve a viable solution for increasing demand of power for Mild hybrid vehicles. The
dual voltage in mild hybrids contains two level of voltages; 48V battery is used
for electrical drivetrain and 12V battery is used to power auxiliary system of the
vehicles. The demand for power for these auxiliary systems is increasing due to
additional safety systems implemented in the car and hence, it is crucial to have
required level of SOC for 12V battery. In current system, this is achieved by a
separate dc/dc converter unit to charge the 12V battery pack. But, this unit is
quite bulky and costly and hence, it is required to find an alternate solution to
charge the 12V battery without using a separate dc/dc converter.
This thesis focuses on investigating on an integrated charger topology suitable to
charge 12V battery for Mild hybrid Dual voltage 48V/12V system. It also checks
the feasibility of the topology to charge the 12V battery continuously under three
modes of motor operation; Motoring mode, Regeneration mode and idle mode. The
work mainly focuses on developing a simulation model which can simulate different
modes of motor for mild hybrid vehicle for charging the 12V. The motivation behind
the thesis is to integrate the 12V charging with 48V drivetrain which will reduce the
overall size and cost of the drivetrain system. The analysis is done based on charger
efficiency and generation of ripple for the three modes of motor operation.

PB Institutionen för elektroteknik, Elkraftteknik, Chalmers tekniska högskola,

LA eng

LK http://publications.lib.chalmers.se/records/fulltext/254950/254950.pdf

OL 30