Eaton launched the EV Truetrac differential, engineered for electric vehicles (EVs). The design addresses the challenges presented by EV propulsion systems, including shared low-viscosity oil environments, increased sensitivity to noise, and the demands of high and instant torque delivery.

Eaton’s Detroit Truetrac, a helical-gear limited-slip differential, has been a solution for improving traction, handling and stability across various vehicle platforms. Now, as more vehicles transition to electric, Eaton has introduced the EV Truetrac to meet evolving needs.

Unlike ICE vehicles, which utilize heavy gear oil in their differentials, EV drive modules share a lubrication system with the motor and use lower-viscosity oils that flow more like water. Eaton’s Truetrac has been redesigned with advanced micro-geometry tuning to ensure durability in this thinner oil environment. Additionally, material science advancements have been applied to ensure longevity in high-torque applications.

Eaton has refined the gear design to minimize noise while maintaining its signature seamless operation. Torque characteristics also differ in EVs, as they deliver instant, high torque. The differential has been engineered to withstand these loads while providing superior traction in both urban and off-road conditions.