Analysis of Dual and Quad Axle Mounted Motor Drivetrain Performance

摘要

This paper explores the benefits in terms of efficiency, performance, safety and features that a drivetrain using dual and/or quad inboard axle-mounted motors has over that of a single-motor electric drivetrain. Several methods for improving efficiency by taking advantage of the possibilities of axle-mounted motors are explored and presented as an inventory of possible power request scenarios. It is argued that axle-mounted drivetrains can provide a number of safety and convenience features over that of a single-motor electric drivetrain while maintaining or increasing electrical efficiency. To adequately compare axle-mounted drivetrains with single-motor drivetrains, a standard certification cycle that includes cornering must be developed. With potential gains of up to 25% overall drivetrain efficiency, this is the most vital future research presented by this paper for verification of concepts presented.