| Summary: | 碩士 === 國立中山大學 === 機械工程研究所 === 84 === Gear-type automatic transmissions can provide several speed
ratios by means of interengaging different elements of the gear
trains and the output shaft by the centrifugal clutches, and
they are widely used in mechanical systems. The purpose of
this work is to develop a systematic methodology for the
configurations and kinematic designs of gear-type automatic
transmissions for two-wheel vehicles. First, we analyze the
system and find the basic characteristics of automatic
transmissions out. According to these characteristics, the
design procedures for both ordinary and planetary gear systems
are detablished : a caralog of automatic transmissions
configurations is set up from the atlas of geared kinematic
chains. Then, according to the given speed ratios, a
systematic porcedure for the kinematic design of gear systems
is successfully developed. The teeth numbers can easily be
found by using such a procedure. Finally, we can have multi-
speed transmissions by combining the ordinary and planetary
gear systems and present several design examples of 4-speed and
5- speed automatic transmissions as a result of this work. The
results of this work are of benefit to the design of gear-type
automatic transmissions for two-wheel vehicles.
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