The development of an ECU-
integrated throttle body
module for an electronic fuel
injection system for small
motorcycles
Honda has a goal to reduce
the total emissions of HC
(hydro-carbon) from new
vehicles to approximately 1/3
and to further improve the
average fuel economy by
approximately 30% (both from
1995) by the year 2005.
To
realize the goal, we at Asaka
R&D Center considered that
the small motorcycles used in
many countries in the world
should be improved further
for clean exhaust gas and low
fuel consumption.
Accordingly, we have started
development of the PGM-FI
system for small motorcycles
with engines of 125cc or
smaller, including air-cooled
engines.
To ensure clean exhaust gas
and high fuel economy, the
control of combustion through
an accurate fuel supply is a
must.
As the conventional FI
system (electronic fuel
injection system) applied to
motorcycles is bulky and
costly, its application has been
mostly in large motorcycles
using multi-cylinder engines.
In the newly developed PGM-
FI, in order to apply to small
displacement models, the
obstacles have been
eliminated by fully using
Honda's techniques to down-
size components as well as
making maximum use of the FI
techniques attained from the
large motorcycles.
The
compact PGM-FI offers new
benefits such as the reduction
of released environmentally
detrimental substances and
the improvement of
driveablity, economy, etc.
*PGM-FI is a registered
trademark of Honda Motor
Co., Ltd.
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