Horiba’s electric motor test stand (EMTS) is a comprehensive system for electric motor development, validation, and durability. Designed for electric motors and related plug-in and hybrid-electric vehicles and components, the solution's rugged design features a high-speed, low-inertia, liquid-cooled dynamometer with a stiff shaft that maintains full torque at zero speed. A custom-designed, internally and externally sealed electric-motor housing features lubrication, forced cooling and heating, and support of hot and cold temperature cycles from -40 to +120°C (-40 to +248°F) for life-cycle testing. Corrosion mitigation reduces maintenance, and an integrated power analyzer measures electric motor efficiency and torque-speed characteristics. The system is available in both a single- and a double-ended configuration, designed with piloted inserts for improved connection.