Flash charged EV(electric vehicle)

Project Title

Flash charged EV(electric vehicle)

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

Electric vehicles are the future with the advancing technology. Conventional battries have high energy densities but low power densties. The solution for that is hybridization with super capacitors. It increases the efficiency and solves the problem of less battery life.

Project Objectives

Implementation of Charging system:

• CCCV for battery
• Super capacitor bank charging

Investigation of behavior of Super capacitors when hybrid with battery in EV

Implementation and design of inverter and Converter.

Project Implementation Method

AC Inverter Design
AC Inverter that Converts DC output from battery into AC, which drives our motor.
Battery Charging
We will build a Two Stage Battery charger (CC and CV) that could be used as to charge Lithium ion, lithium polymer or lead Acid batteries. The battery charger circuit is designed for 12V.

• Constant Charge (CC):

The first mode to get into operation will be the CC mode. Here the amount of charging current that should enter the battery is fixed. To maintain this current the voltage will be varied accordingly. This gives fast charging.

• Constant Voltage (CV):

Once the CC mode is completed the CV mode will kick in. Here the Voltage will be kept fixed and the current will be allowed to vary as per the charging requirement of the battery for trickle charging.

Super Capacitor charging circuit
Here we design a Super capacitor charging circuit. Compared to batteries the super capacitors have very low ESR (Equivalent series resistance) value this allows higher value of current to flow in or out the capacitor enabling it to get charged faster or discharge with high current. But because of this capability of handling high current, a super capacitor should be charged and discharged safely to prevent thermal runaway. When it comes to charging a super-capacitor there are two golden rules, the capacitor should be charged with correct polarity  and with a voltage not exceeding 90% of its total voltage capacity.
Integration of Battery and Super Capacitor
Here we use some controller which will be programmed accordingly for motor to take initial inrush curent from super capacitor bank and switch to battery for smooth running later.
 

Benefits of the Project

Environmen Friendly.

Cheaper than ICE Vehicles.

Maintenance is less frequent and less expensive.

Can be upgraded for regenerative braking.

Provides efficient solution for less battery life.

Technical Details of Final Deliverable

The project is based on synchronized working of battery and ultra capacitors for meeting the required voltage of motor. The battery is to be efficiently charged with fully controlled two mode CCCV charger. Super capacitors are to be charged in a flash as per their requirement and used to provide the large thrust of current to meet the requirement.

Final Deliverable of the Project HW/SW integrated systemCore Industry TransportationOther Industries Energy , Health Core Technology OthersOther Technologies Clean TechSustainable Development Goals Decent Work and Economic Growth, Industry, Innovation and InfrastructureRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	48100
battery	Equipment	1	10000	10000
pcb board	Equipment	3	600	1800
inverter components	Equipment	1	500	500
converter components	Equipment	1	800	800
super capacitors	Equipment	10	700	7000
motor	Equipment	1	8000	8000
car chasis	Equipment	1	10000	10000
panaflex	Miscellaneous	2	500	1000
Broceure	Miscellaneous	50	70	3500
Controller	Miscellaneous	1	5000	5000
printing	Miscellaneous	1	500	500