Self-contained motor speed control device

Abstract

A self-contained speed control device and system, primarily for electric and hybrid vehicles, includes a self-contained mechanical variable-speed control device. The device allows the motor to run constantly at its most efficient speed and temperature. The device is mechanically operated and connected to the motor and drive train. Speed is controlled by means of an accelerator cable connected to the device. When the accelerator is in the low or idle position, the torque is multiplied or increased instead of decreased, lessening the load on the motor, without additional load on the batteries. A continuous gear and slide arrangement creates a constantly variable speed combination, without interruption, giving the electric motor the feel of an internal combustion engine, without the disadvantage of building torque. The device includes a simplified two-piece housing, a cone shaped drive gear supported by a shaft and bearings, and a cam controlled variable pitch gear that slides on and in constant mesh with the main drive gear. The cam is supported by a shaft and bearings in communication with an oil sump incorporated in the device.

Dependencies are inferred from the claim text.