초록 ▼

An improved electrically powered vehicle and associated method of the type having a mobile electrical storage device for providing electrical power electrically connected to a switching device, for selectively controlling the flow of electric power. The switching device is electrically connected to

An improved electrically powered vehicle and associated method of the type having a mobile electrical storage device for providing electrical power electrically connected to a switching device, for selectively controlling the flow of electric power. The switching device is electrically connected to an electric motor. It selectively allows the flow of electrical power to the motor. The motor is mechanically connected to a belt type continuously variable transmission with the transmission mechanically connected to a drive wheel of the vehicle. It is improved by the motor, being of the direct current type, that is electrically connected to a continuously variable power supply control device responsive to an operator input. Further, the motor is mechanically connected to the continuously variable transmission, with the transmission adapted to respond to the rotational speed of the motor by varying in speed ratio.

대표청구항 ▼

[ What is claimed is:] [1.] An improved method for operating a vehicle with a combination, of a continuously variable transmission and an electric motor, powered by a mobile electrical storage device, with the steps of supplying electrical power to said combination from said storage device, transmit

[ What is claimed is:] [1.] An improved method for operating a vehicle with a combination, of a continuously variable transmission and an electric motor, powered by a mobile electrical storage device, with the steps of supplying electrical power to said combination from said storage device, transmitting mechanical power between said electric motor and a drive wheel of said vehicle, and varying a speed ratio between said electric motor and said drive wheel in a continuous manner, the improvement comprising:supplying electrical potential for direct current to said motor,varying the amount of electrical potential supplied to said motor in a continuous manner, andvarying a radial distance from axis of rotation a power transmission belt rides upon a pulley to vary said speed ratio between said electric motor and said drive wheel in a continuous manner in response to motor speed and in response to motor load by communication of a biasing arrangement.