http://Ev-Motors.com
EV
Cycling-to-the-Sun
http://cycletothesun.net
'Gem'
electric cycle conversion
M-750
Electric Mountain Bike Io
Electric Cruiser Bicycle The
Wavecrest Electric Motor
Wavecrest
Electric Car Wavecrest
Bicycle Photos Wavecrest
Bicycle Video
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Conventional
motors waste energy at nearly
every point of their
operation. But the WaveCrest
Adaptive Motor® dynamically
reconfigures itself to be
always at peak efficiency.
This
happens in all environments,
at all speeds and in all
conditions. The system is
equally efficient at capturing
energy when operating as
regenerative brakes or as a
generator.
"I
believe this technology will
make WaveCrest motors the
propulsion of choice for the
21st century, leading to a new
generation of vehicles with
superior operating
characteristics and creating a
legacy of environmental
responsibility."
General
Wesley Clark
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The
wheel motor is made up of an aluminum
hub, lined with a permanent magnet.
Inside
of the hub is a multi-phase, DC
brushless motor, arranged so that the
rotor surrounds and rotates around the
center-mounted stator. The rotor is made
up of a series of
independently-controlled electromagnetic
coils driven by a proprietary power
electronics module. The housing is
backed by an iron plate, a necessary
part of any electric motor. The rotor
turns on Timken bearings.
The
magic is in the electronics and
algorithms that control the coils. The
system can be updated every 100
milliseconds, keeping track of the
position of the rotor and optimizing
when the coils need to be turned on or
off. The algorithms used to control the
coils are the reason that WaveCrest has
been able to demonstrate unheard of
torque densities.
The
WaveCrest motor can be driven by any
energy source, from hybrid electric
systems to batteries to fuel cells.
The
WaveCrest Adaptive Motor®
system delivers maximum power
and efficiency at every speed.
• Unparalleled electric motor
performance as a replacement for
the internal combustion engine;
eliminates costly drive system
and power train
• Wide range of applications:
can be used in vehicles such as
bicycles, automobiles and mass
transit; in commercial and
industrial applications; and as
a generator
• High reliability/brushless
– only one moving part and
in-motor redundancy
• Lightweight and very quiet
• Environmentally friendly: no
emissions, non-toxic
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Charging
Ahead
The
Achilles heel of the electric
vehicle has always been the
battery. “If we had a
battery that was good
enough,” says Richard Schaum,
vice president and general
manager of vehicle systems for
WaveCrest Laboratories, “we
’d probably all be driving
electric cars.” WaveCrest
has purchased the patents to
further develop spiral-wound
battery technology. “On all
the hybrids I worked on at
Chrysler,” Schaum says,
“the battery internal
resistance was the bottle-
neck. There was plenty more
energy that could go in if
only the battery would take
it.”
The
cells are manufactured in a
spiral-wound stack instead of
the usual cylindrical
structure. The heart of the
technology is a patented
current collector that enables
power to pass through the body
of the wound cell, directly
from one cell to the next
producing multiple
efficiencies and most of all,
reducing resistance.
Schaum says the batteries have
shown 92 percent peak
efficiency with about 87
percent average efficiency.
“The goal,” says
Schaum,,“and I believe we
’re going to make it in the
next generation, is 90 percent
efficiency over 90 percent of
its operating range.”
Increased efficiency extends
the range of pure EV vehicles
and the lower resistance
enables rapid recharging.
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How
it works
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A
WaveCrest Adaptive Motor
directly drives each wheel
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Each
motor is controlled by
microprocessors embedded
in the control system
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Decision-making
algorithms track and
analyze vehicle
performance, identifying
load requirements
instantaneously and
delivering energy
precisely
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Regenerative
energy is captured during
braking for reuse in the
most efficient way
The
WaveCrest Adaptive Motor®
system is a breakthrough in
motor technology, delivering
unprecedented power and
performance for vehicles of
all shapes and sizes.
WaveCrest’s highly
skilled, global engineering
team has developed this
revolutionary motor system
by capitalizing on a
convergence of recent
technology advances:
What
makes the WaveCrest Adaptive
Motor® system so
revolutionary?
WaveCrest capitalizes on the
convergence of recent
advances in microprocessors,
semiconductor power
electronics,
high-performance software,
unique motor architecture
and advanced materials,
resulting in an electric
propulsion system with
unprecedented power and
efficiency.
The
WaveCrest motor has ample
torque to directly drive
each wheel of the vehicle.
In many applications the
motor can be directly
mounted within the wheel.
Microprocessors control each
motor; decision-making
algorithms track and analyze
vehicle performance. By
identifying –
instantaneously – the load
requirements and delivering
energy precisely, this
design provides unparalleled
torque and efficiency
throughout the operating
range.
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