Integrated electric motor control/transmission control system for use with variable transmissions in electric vehicles

摘要

The invention is an integrated motor-control/transmission control system for use with variable transmissions (IVT and CVT) in electric vehicles. The system allows an electric motor to operate a higher percentage of its total operating time at or close to peak efficiency than is allowed under PWM-style systems by allowing the motor to accelerate to peak without a load, or alternatively, with a relatively low load and then by utilizing a variable transmission to accelerate the vehicle.