The Morgan LIFECar takes a fresh look
at transport, offering as revolutionary an approach to personal freedom
as did the brilliant Morgan Threewheeler introduced by HFS Morgan nearly
100 years ago.
The LIFECar is powered by
a fuel cell that is sized to meet the constant load requirement of
cruising (about 20% of peakpower) and as a result significant weight and
cost reductions have been made over other designs. By recapturing energy
during braking, maximum performance is available to LIFECar for
acceleration from this unique mix of technologies.
The initial concept was
the brainchild of Hugo Spowers of RiverSimple, a specialist company
investigating new ideas in environmentally sound transport solutions. In
order to realise LIFECar however, several partners were needed to make
the concept a reality.
The project is based
around hydrogen as the fuel source because when it burns the only
emission is pure water. Hydrogen is potentially abundant and Spowers
brought in Linde to the project for their expertise across the whole
hydrogen supply chain from production and distribution through to their
high pressure refuelling systems.
The hydrogen is converted
to electricity using a 4 stack hydrogen PEM fuel cell. Apart from 22Kw
of electricity, the fuel cell produces only heat and water as
by-products. The fuel cell made by QinetiQ operates at 45% efficiency, a
significant advance over the conventional internal combustion engine.
Electricity is directed to
4 electric motor/generators, each connected directly to a driving wheel.
Not only are these motors super-efficient – 92-94% across their
operating range - but they have inbuilt re-generative braking,
recapturing the kinetic energy for when vivid acceleration is required
(and reducing energy consumption still further). Whilst regenerative
braking is not a new concept, current applications offer around 10%
energy reuse, whereas in LIFECar, up to 50% of this stored kinetic
energy can be re-employed.
This regained energy needs
to be efficiently stored and delivered. Historically this has been the
job of batteries, which are rich in heavy metals, heavy in weight and
limited in their ability to deliver or receive high power bursts of
energy. LIFECar has shunned these in favour of a bank of ultra
capacitors. These have the ability to shuffle up to 1000 amps back and
forth, maximising energy storage during braking and delivering powerful
acceleration.
This technology would not
be practical without sophisticated controls. Cranfield University have
developed management systems for the vehicle, hydrogen, fuel cell,
ultracapacitors and the motors allowing them to become the drive and
braking system (powerful enough to give 0.7g retardation as well as
generating energy). They have also developed a solution to seamlessly
switch the electronic brakes to a conventional hydraulic system at very
low speeds.
LIFECar has been
engineered to deliver energy consumption equivalent to 150 mpg (1.8
l/100km) on petrol with a top speed potential of 80-85 mph, a 0-62 time
of under 7 seconds and a 250 mile range. This unique mix of technology
has been packaged by Morgan to add yet another unique twist to the
project. Using only the best and lightest materials that are also
attractive from an environmental and an aesthetic point of view,
aluminium, wood and leather, the Morgan DNA is clearly visible and gives
a new dimension to an environmentally sensitive concept.
One thing is for certain,
the world of motoring will change out of all recognition over the next
10 years…Could this be its future?