Twin Motor System for Electric Vehicle Propulsion by Means of Two Energy Sources

The transport sector in all domains like personal vehicles, public transport and logistics has seen a tremendous growth over the past decade, more so in the last 5 years. The main reasons for this rapid growth is the development of new energy storage systems in battery technology ( Lithium ion ,sodium ion ,aluminum air etc.), hydrogen fuel cells, super capacitors etc. On the other hand there has been tremendous development in the motor drive technology with the availability of brushless dc motors (BLDC Motors), induction motors, Permanent magnet synchronous motors (PMSM,IPMSM). Each motor having its own special characteristics and usage suited for a very specific application in terms of torque and load bearing capacities. In this paper we describe a unique platform with twin motor drive system electric vehicle which is powered by an artificial intelligence (AI) enabled electronic module DuoPackR. The basic platform is described with the help of a bicycle which has two BLDC motors on the front and rear wheels. Each motor is of 250 W @ 36V. This is only to demonstrate the twin motor platform which may be extended to any vehicle, both road and rail with any number of wheels in any configuration with combination of any type of motor. The power to the controllers is provided by the electronic module which has facility to input DC power at two inputs and deliver power at the outputs based on the signal received by the AI section of the DuoPack. The working of the platform has been tested with two Lithium-ion battery packs each of 7.5Ah @36V. In essence the first battery pack called the power pack delivers power to the bicycle to start its motion and then the second pack called the energy pack takes charge. A display console provided to the DuoPack provides the user to select a scheme of motor sequence to be put in action, namely any of the motor or both the motor with a reversal of the action back to any single motor. This is further facilitated by a sensor provided to ascertain the angle of the climb /gradient. Key words: Twin motor, AI, Duo Pack, Gradient Patent Application No: .202241076583