Abstract: The disclosure herein generally relates to vehicle control systems and more particularly, to a system and a method for controlling a powertrain for reducing power loss of a traction motor in the vehicle such as but not limited to an electric vehicle. The system (100) includes a main controller unit (102), a vehicle speed sensor (104), a throttle sensor (106), a control switch (108), a motor speed sensor (10S), a traction motor controller (10TMC) and a transmission controller unit (10TCU). The system optimizes the operating zone of the traction motor (10TM) for achieving better efficiency of the traction motor (10TM). The system reduces power consumption required for cooling battery and powertrain components of the vehicle due to less heat generation achieved by operating the traction motor (10TM) in higher efficiency zone.

Abstract: In case of EVs, there may be multiple motors, corresponding number of components and connectors, cooling systems, and wiring harness for each motor for various purposes. Based on that, the components have to be packed in the limited space available in the vehicle. Embodiments herein disclose methods and systems for operating motors in electric vehicles in an independent manner using a single Variable Frequency Drive (VFD), wherein the VFD can operate based on the application requirements such as traction alone, PTO alone, traction and PTO of lesser power requirement, traction and PTO of rated power requirement and traction and PTO of more than rated power for shorter duration.