Fleet Maintenance - 19

greatly reduce the demand on the engine and the
subsequent burning of fuel. In order to achieve
that, however, the vehicle would require a higher
voltage electrical system - most likely 48V.
Another major reason to push to higher voltages
is the potential cost savings. Electrical systems no
longer dependent on the engine's power would not
only provide fuel savings but would also help to
reduce engine maintenance.
Engines could potentially
operate for longer intervals
with fewer maintenance
demands should they not have
to power as many systems.
Higher voltage systems
may also aid in reducing the
overall weight of the vehicle.
As voltage increases, current
decreases. If a system went
from 12V to 48V, there would
be four times greater voltage;
that increase in voltage would,
in turn, result in one fourth
less current.
"If our amperage goes way
down, then we can use much
smaller wiring," Rambeaux
says. "There's a lot of cost
savings if you go from say, a
10-gauge wire to a 16-gauge
wire, which also is a big
weight savings."
Smaller wiring can help
reduce the vehicle's overall weight. A lighter vehicle
provides cost savings through
aiding in improved fuel efficiency and allowing for a
higher vehicle freight hauling capacity. While wiring for
one system may not seem like
much, an incremental weight
savings may be achieved as
components, devices, and
systems are transitioned to
higher voltages, and subsequently smaller wiring.
Furthermore, additional
integration of higher-voltage
components, devices, and
systems are less impactful in
regard to weight compared to
those operating on lower voltages and heavier wiring.
"Think of the autonomous
functions we're seeing, or
the high-speed communication functions we're seeing.
These multi-voltage systems,
there's a lot of benefits to
having them and so there's
going to be a bit of urgency to try to do it," says Fred
Kelly, director of R&D for the
Americas, Prysmian Group, in
regard to implementing higher and multiple voltages on a
commercial vehicle. "[Highervoltage systems] will have

efficiency, will save weight, will provide more
power capability, and really, fundamentally, try
to help us achieve some of these fuel and emissions goals that we have as well." The Prysmian
Group manufactures electric power transmission
and telecommunications cables and systems.
Optimized battery life is yet another benefit
resulting from the implementation of higher volt-

age electrical systems.
"We can also secure more energy reservation
in the batteries and as a result, reduce the alternator charging requirements that allow for less
load on the engine accessory drive and improved
fuel consumption," says Makki. "With more energy
reservation in the batteries, we can also improve
engine startability and battery life."

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Fleet Maintenance

Table of Contents for the Digital Edition of Fleet Maintenance

Uptime: The responsibilities of being an essential business
How fleets can benefit from today's 6x2 axle configurations
With greater voltage comes greater responsibility
How to manage unanticipated roadside events
Amping up the voltage
Getting the most out of fuel injection systems
Management: Do you sabotage success?
Economic Outlook: Dealing with a natural disaster
Fleet Parts & Components
Tools & Equipment
Classifieds
Guest Editorial: NASTF steps into the world of heavy duty
Tools & Shop Equipment Supplement: Diagnostic Tools
Tools & Shop Equipment Supplement: Power Tools
Tools & Shop Equipment Supplement: Specialty & Hand Tools
Tools & Shop Equipment Supplement: Shop Equipment
Tools & Shop Equipment Supplement: Tool Storage
Fleet Maintenance - 1
Fleet Maintenance - 2
Fleet Maintenance - 3
Fleet Maintenance - 4
Fleet Maintenance - 5
Fleet Maintenance - 6
Fleet Maintenance - 7
Fleet Maintenance - Uptime: The responsibilities of being an essential business
Fleet Maintenance - 9
Fleet Maintenance - How fleets can benefit from today's 6x2 axle configurations
Fleet Maintenance - 11
Fleet Maintenance - 12
Fleet Maintenance - 13
Fleet Maintenance - 14
Fleet Maintenance - 15
Fleet Maintenance - With greater voltage comes greater responsibility
Fleet Maintenance - 17
Fleet Maintenance - 18
Fleet Maintenance - 19
Fleet Maintenance - 20
Fleet Maintenance - 21
Fleet Maintenance - How to manage unanticipated roadside events
Fleet Maintenance - 23
Fleet Maintenance - 24
Fleet Maintenance - 25
Fleet Maintenance - 26
Fleet Maintenance - 27
Fleet Maintenance - 28
Fleet Maintenance - 29
Fleet Maintenance - Amping up the voltage
Fleet Maintenance - 31
Fleet Maintenance - Getting the most out of fuel injection systems
Fleet Maintenance - 33
Fleet Maintenance - 34
Fleet Maintenance - 35
Fleet Maintenance - Management: Do you sabotage success?
Fleet Maintenance - Economic Outlook: Dealing with a natural disaster
Fleet Maintenance - Fleet Parts & Components
Fleet Maintenance - 39
Fleet Maintenance - 40
Fleet Maintenance - 41
Fleet Maintenance - 42
Fleet Maintenance - Tools & Equipment
Fleet Maintenance - 44
Fleet Maintenance - 45
Fleet Maintenance - 46
Fleet Maintenance - 47
Fleet Maintenance - 48
Fleet Maintenance - Classifieds
Fleet Maintenance - Guest Editorial: NASTF steps into the world of heavy duty
Fleet Maintenance - 51
Fleet Maintenance - 52
Fleet Maintenance - S1
Fleet Maintenance - S2
Fleet Maintenance - S3
Fleet Maintenance - S4
Fleet Maintenance - S5
Fleet Maintenance - Tools & Shop Equipment Supplement: Diagnostic Tools
Fleet Maintenance - S7
Fleet Maintenance - S8
Fleet Maintenance - S9
Fleet Maintenance - S10
Fleet Maintenance - S11
Fleet Maintenance - S12
Fleet Maintenance - S13
Fleet Maintenance - S14
Fleet Maintenance - S15
Fleet Maintenance - S16
Fleet Maintenance - S17
Fleet Maintenance - Tools & Shop Equipment Supplement: Power Tools
Fleet Maintenance - S19
Fleet Maintenance - S20
Fleet Maintenance - S21
Fleet Maintenance - Tools & Shop Equipment Supplement: Specialty & Hand Tools
Fleet Maintenance - S23
Fleet Maintenance - S24
Fleet Maintenance - S25
Fleet Maintenance - Tools & Shop Equipment Supplement: Shop Equipment
Fleet Maintenance - S27
Fleet Maintenance - S28
Fleet Maintenance - S29
Fleet Maintenance - Tools & Shop Equipment Supplement: Tool Storage
Fleet Maintenance - S31
Fleet Maintenance - S32
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