Abstract: Embodiments described herein are directed to a controllerless electric drive system, a controllerless hybrid drive system and a method for controlling drive system characteristics based on received drive system inputs. In one instance, a controllerless electric drive system is configured to power one or more powered wheels. The controllerless electric drive system includes a battery, a substantially constant-speed electric motor, a torque converter/clutch, a continuously variable transmission and one or more powered wheels. The battery is coupled to the substantially constant-speed electric motor, and the motor is coupled to the continuously variable transmission via the torque converter. As such, the battery provides power for the electric motor to drive the continuously variable transmission which turns the one or more powered wheels, without implementing a controller to vary the current or voltage between the battery and the motor.

Abstract: Embodiments described herein are directed to a controllerless electric drive system, a controllerless hybrid drive system and a method for controlling drive system characteristics based on received drive system inputs. In one instance, a controllerless electric drive system is configured to power one or more powered wheels. The controllerless electric drive system includes a battery, a substantially constant-speed electric motor, an infinitely variable transmission and one or more powered wheels. The battery is coupled to the substantially constant-speed electric motor, and the motor is coupled to the infinitely variable transmission. As such, the battery provides power for the electric motor to drive the infinitely variable transmission which turns the one or more powered wheels, without implementing a controller to vary the current or voltage between the battery and the motor.