48 V has gone from being the next big thing to being on the road in production vehicles, and hardly a week goes by without an automaker or major supplier announcing or expanding a 48-volt initiative. But where do we go from here? Is the future all 48 V? Is the technology a viable alternative to hybridisation? Will US OEMs come on board? This SlideShare presents key excerpts, survey results and industry views on 48 V, extracted from Autelligence’s new 2nd edition report “48V and Automotive Electrification – Systems, Performance and Opportunity”.

1. 48 V – a critical step in CO2 reduction

2. Key reasons for 48V system growth
The most cost effective route to meeting
increasingly stringent CO2 regulation
A 48-volt architecture has a significantly
better cost/CO2 gain ratio than high
voltage systems and is capable of a great
deal of extension into additional
functionality.
Energy demands for future vehicles are
forecast to continue to increase at an
accelerating rate.
Many of the increase loads are transient
rather than continuous but continue to take
parasitic power from the engine.
Therefore the availability of power at 48
volts does not come with the penalties of
high voltages but allows significant
performance increases across the
architecture.
CO2 reduction versus systems cost
Electrical power requirements vs time

3. 48V as an enabling technology
More than 50% of respondents to a
February 2016 Autelligence survey of
automotive managers and engineers
believe that more than 20% of registrations
will feature 48V in at least one major
market.
"In the future, the demands on 48 V
technology will increase even more” - José
Avila, Continental AG
“48V is becoming an extremely attractive
lever we think that OEs will be pulling
around the world. It will be a level we think
will be pulled very, very hard.” Jeff Owens,
chief technology officer, Delphi Automotive
“We believe that by the end of this decade,
48V will become a significant part of the
market. It’s probably the next technology
after start-stop that will make sense for the
mass market consumer.” Craig Rigby, VP
product management, Johnson Controls.
Light vehicle volumes equipped with 48-volt mild hybrid systems
2020 and 2025
How long will it take for
48V to become
mainstream (more than
20% of registrations in
at least one major
market)?

4. 48V key development drivers
2012 CO2 performance of key EU OEMs
Regulation
• Reducing CO2
• Criterion emissions regulation
• Other regulation (safety) increasing demands on
the electrical architecture
• Electrical safety - a transient voltage over 60V
would force OEMs to use expensive systems
required for high voltage vehicles
Competitiveness
• Competitive drivability, power, torque response and
engine performance, particularly associated with
downsizing, down speeding and turbocharging,
• Competitive vehicle dynamics
• Electrical systems cost and complexity and
packaging
• Systems integration and technology development
pace

5. What the industry is saying
“48V technology goes far beyond electric power” José Avila, Member of the
Executive Board at Continental AG, Head of the Powertrain Division.
“Compared to higher-voltage mild hybrids, vehicles with 48-volt systems have
demonstrated 70 percent of the benefits at 30 percent of the cost. Jeff Owens,
chief technology officer, Delphi Automotive
“Forty-eight volts is really the optimum position between efficiency and cost.”
Nick Pascoe, CEO, CPT Technologies
“We see all major Chinese auto makers on or sourcing 48-volt batteries [and]
they will phase in over the next three years. By 2020 a substantial pert of all
new vehicles in China will have them.” Jason Forcier, A123 Systems
“What is the most efficient way to meet the regulations? If you look at advanced
start-stop 48 volts then you can get well into 2021 and stay in that low voltage
space and allow OEMs to [still] have a lot of flexibility about how they achieve
those regulations.” Mary Ann Wright, VP Engineering and product
development, Johnson Controls

6. Read more in our latest edition 48 V
report48 V has gone from being the next big thing to being on
the road in production vehicles, and hardly a week goes
by without an automaker or major supplier announcing
or expanding a 48-volt initiative.
But where do we go from here? Is the future all 48 V?
Is the technology a viable alternative to hybridisation?
Will US OEMs come on board?
Autelligence’s new 2nd edition report “48V and
Automotive Electrification – Systems, Performance and
Opportunity” examines this critical sector, surveys
industry insiders on their views, answers technical
questions, outlines the strategies for each automaker
and suggests forward opportunities for suppliers.
Complete report information, full table of contents and a
sample download can be found here:
autelligence.com/48v