A novel technology has been developed where the electric motor is built within the wheel with built in controllers. This bus called as E bus. The main advantages of this type of bus are that it eliminates the transmitting mechanism from electric motors to the wheels.
This is in turn improves the efficiency of E-bus and also saves the energy. So the vehicle can be run for long period with available battery backup. At the same time vehicle can be ride very smoothly and controlled easily.