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If there are two things
that are in tight supply in
the industry, it's time and
talent. Manufacturers are always
pressured to do more faster,
and the industry is producing
fewer experts to help them do it,
so the industry's had to get crafty
and find what time-cutting procedures
they can.
In today's highly competitive world,
the better someone understands the
advantages and benefits of direct drive
technology, then the more they will
have an advantage in machine building,
giving them an edge over their
competition.
This paper presents a joint project conducted by Ashwoods Electric Motors and Oerlikon Fairfield that uses planetary drives with an integrated electric motor. Current solutions used in production of off-highway vehicles rely upon large, heavy and inefficient brushed DC or induction motors, coupled to a planetary gearbox. This presents a number of challenges to the vehicle designers such as: limited vehicle range, limited space around the motor/drivetrain, and motor durability.
The proposed integrated system utilizes an Oerlikon Fairfield Torque Hub, widely used in off-highway vehicles, and the
Ashwoods first-to-market, interior permanent magnet motor. How these products are integrated, i.e. incorporating a brake solution, represents a market-changing product. Using interior permanent magnet (IPM) technology in the motor design means the motor can be up to 70% lighter, 70% smaller and 20% more efficient than traditional motors used in off-highway
traction applications.