Comparative Effects of Conductive Ring and Common Mode Choke on Bearing Voltage Characteristics and Electrical Damage in an Actual EV Drive Bearing
Motor bearings in electric vehicles (EVs) are prone to electrical discharge damage from self‑generated shaft voltage. Two common mitigation methods—the conductive ring and the common mode choke—are widely used, but their comparative performance under real‑EV's conditions remains unclear. This study investigated beari...