Microgeometry Optimization of Spur Gear for Electric and Hybrid Vehicle Applications

A new spur gear design providing less transmission error and increased life for electric and hybrid Vehicles, adaptable to high initial torque and reverse loads due to regenerative braking. The teeth of the spur gear profile have specific micro-geometry modifications for the mentioned application. The paper includes contact analysis for designing the profile modified spur gears having preferred running characteristics and optimization through design of experiments.