Archive > 2017 > February 2017 > Lightweight, Highly Efficient Drive System

Lightweight, Highly Efficient Drive System - February 2017

James Winchester, Andrea Favale, Scott A. Martin

The article "Lightweight, Highly Efficient Drive System" appeared in the February 2017 issue of Power Transmission Engineering.

Summary
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.

Keywords
gear drives, brakes, off-highway, traction drives, Oerlikon Fairfield, planetary gear drives, gearmotors, Ashwoods Electric Motors

The article "Lightweight, Highly Efficient Drive System" should appear in the box below, but if you do not see it, you can download it here.

It appears you don't have a PDF plugin for this browser. No biggie... you can click here to download the PDF file.