2 Days
I.D.#C0024
This course will develop a basic understanding of the fundamentals
of operation and explain the current state-of-the-art design of the
modern transmission designs. Transmission systems in current
production will be used as a practical example throughout the seminar.
Two basic product areas of truck and off-highway transmission
systems will be reviewed: Planetary Automatic Transmissions, and
Power-Shifted Transmissions.
The functional requirements of the “current” market and the
operational needs of its drivers will drive the course. Course material
will be presented in the chronological order in which it was introduced
into the marketplace. This order is shown through the requirements of
“ new” functionality by the marketplace at the time it was introduced.
The design advances that satisfied these requirements will be
discussed and used to show design progression through to the
current state of design.
This “current state-of-the-art” design schematic will then be used
to show the driving forces behind the next evolutionary step in the
development of future designs of transmission systems. All aspects
of current designs will be reviewed in depth; the components used,
how they operate and the interrelation of all components. All functional
modes of the major components and sub-systems will be discussed
and explained to the audience. Based on this working knowledge of
transmission components and systems, attendees will work through
design specifications, functional modes and considerations of reliability
and life for each major sub-system in a transmission system.
The seminar will conclude with a brief discussion of the future of
transmission systems and what functional requirements are likely to
be expected by the users of the next generation vehicles within this
market.

Learning Objectives
By attending this seminar, you will be able to:
􀁴􀀁 Identify the major components and system functions in a modern
truck or off-highway transmission system
􀁴􀀁Compute powerflow, relative rotational speeds of various
components, and the functional relationships that exists between
these components
􀁴􀀁Specify the size of a truck or off-highway transmission, select the
numbers of speed ranges and ratios for each, and assess system
efficiency
􀁴􀀁Explain the operational aspects and design principles of each of the
major components and sub-systems of a transmission
􀁴􀀁Describe the operational parameters and inter-relationships of each
of the sub-systems within the truck transmission
􀁴􀀁Summarize basic design synthesis and analysis techniques for each
of the major components and sub-systems of a transmission
􀁴􀀁Discuss the direction of new truck and off-highway equipment
transmission designs
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