6576787798564646464546_EV PPT (1)[1].pptx

ppt on ev

1. CONTENTS Introduction to Internship Objective of Internship Week -Wise Activity Report Outcomes of Internship Internship Certificate Conclusion 1

2. Introduction to Internship Internship Period : 2 Month Internship Duration : 27 th Jun 2023 to 27 th Aug 2023 Internship Company (or) Institute : KODACY Mode of Learning On-Line (or) Off-Line : On-Line Number of Hours Allocated for Internship : 4 Hours (Per Day) 2

3. Company (or) Institute Profile Company Name : KODACY Established in Year : 2020 Company Profile : 3

4. Objective of Internship Component Familiarity: Understand the key components of electric vehicles, including batteries, motors, and charging systems. Hands-On Experience: Gain practical experience in assembling and disassembling electric vehicle systems. Battery Tech Understanding: Learn about electric vehicle battery technologies, focusing on lithium-ion batteries and management systems. Charging Infrastructure Knowledge: Understand different charging standards and technologies used in electric vehicle charging infrastructure. Software and Control Systems Exposure: Familiarize yourself with software and control systems in electric vehicles, including firmware and integration. 4

5. Week -Wise Activity Electric Vehicle Technology: 1. Introduction And Fundamentals . Parts of EV Technology. 2.Charging Infrastructure, Types of Motors and Working Traction Motor. 3. Battery. Battery Management System (BMS). 4. Regenerative Braking. Converters and Inverters. 5

6. 5/2/2024 Second Review - Batch 1 6 5. Design And Manufacturing . Battery Technology,Materials,Features 6.Emerging Technologies in EV Wireless Charging System 7.Mraket Trends And Consumer For EV Ev Performance,Integration 8.Future Outlook For Ev Environment Impact,Noise Reduction

7. Battery Electric Vehicles (BEVs) BEVs are also referred to as all-electric cars (AEV). Electric drivetrains driven solely by batteries are used in BEV-based electric vehicles. The enormous battery pack that houses the electricity needed to power the car may be charged by hooking it into the power grid. One or more electric motors are then powered by the fully charged battery pack to drive the electric vehicle. 7

8. Hybrid Electric Vehicle (HEV) HEVs are also referred to as parallel or series hybrids. HEVs have an electric motor in addition to an engine. Fuel powers the engine, while batteries provide electricity for the motor. Both the engine and the electric motor turn the transmission at the same time. Wheels are then propelled by this.   8

9. Plug-in Hybrid Electric Vehicle (PHEV): The term “series hybrid” also applies to PHEVs. Both an engine and a motor are present. You have a choice of two types of fuels: conventional fuel (like gasoline) and alternative fuel (such as biodiesel). A battery pack that can be recharged can also power it. The battery can receive external charging. PHEVs have at least two operating modes: All-electric Mode, in which the automobile runs entirely on its motor and battery Hybrid Mode, which uses both electricity and gasoline or diesel 9

10. Fuel Cell Electric Vehicle (FCEV) Another name for FCEVs is zero-emission vehicles. To create the electricity needed to power the car, they use “fuel cell technology.” The fuel’s chemical energy is instantly transformed into electric energy. ​ Main Components of FCEV: Fuel-cell stack, hydrogen storage tank, an electric motor, and a battery with a converter and a controller 10

11. Parts of EV Battery Pack In contrast to an internal combustion engine, which has a gasoline tank full of petrol, an electric vehicle’s energy source is its battery pack. The car’s drive, heating, cooling, lights, and other equipment are all powered by the battery pack. Since battery packs normally use direct current (DC) electricity, alternating current (AC), which is used when charging at home (Level 2), is converted to DC . Electric/Traction Motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Power Inverter A power inverter is needed to convert the DC power from the battery for use with AC motors. The power inverter can also operate in reverse, transforming regenerative braking’s AC power into the battery’s DC power. Onboard Battery Charger The majority of EVs come with an integrated battery charger. Instead of DC fast charging, these devices are utilised for regular AC charging (level 1 or 2). To prevent any electric harm, they serve the purpose of limiting the overall amount of power entering the battery. 11

12. DC Motor The following three categories of DC motors: ​ Standard-style “brushed” motor. This motor can produce a lot of initial torque and has simple speed control, but it will probably need more maintenance. DC brushes-less motors (BLDC). These are an improved version of traditional DC motors because they do not contain “brushes.” They require far less maintenance, are more effective, and still provide a high starting torque. Synchronous Permanent Magnet Motor (PMSM). The PMSM permanent magnet motor works similarly to a BLDC but uses magnets to provide a steady magnetic field. Due to their high power rating, you can find these motors in high-performance EVs.  12

13. AC Motor There are two categories of AC motors:​ Asynchronous. The electric-powered stator (coil of wire contained inside the engine casing), sometimes referred to as an induction motor, creates a rotating magnetic field. For prolonged driving at greater speeds, this motor is recommended. Synchronous. The revolving magnet really functions as the motor rotor. The ideal use of these motors is for city driving, which involves frequent starting and stopping. 13

14. Traction Motor An electric motor used to propel a vehicle, such as a locomotive, an electric or hydrogen vehicle, an elevator, or an electric multiple unit, is known as a traction motor . Mechanical Characteristics: A traction motor must be robust and capable to withstand continuous vibrations since service conditions are extremely severe. The weight of the traction motor should be minimum in order to increase the payload capacity of the vehicle. This is achieved by using high- speed motors, the upper limit being fixed by excessive centrifugal stresses. Electrical Characteristics:  High Starting Torque: A traction motor must be capable of developing high starting torque, especially when the train is to be accelerated at a reasonably high rate such as in case of urban or suburban services. Simple Speed Control: The traction motor should be amenable to simple speed control methods as an electric train has to be started and stopped very often. 14

15. Battery A battery is an essential component of any electric vehicle (EV). The battery needs to be built to meet the demands of the motor or motors and charging mechanism that a vehicle uses. For plug-in hybrid electric vehicles (PHEVS), hybrid electric vehicles (HEVS), and all electric cars, they are crucial (EVs). Physical limitations like effective packaging within the body of the vehicle to maximise capacity are included in this. The placement of the battery within a vehicle must be taken into account by designers as the battery is the primary source of weight in an EV and can affect power efficiency and handling characteristics (which is typically why you will frequently see batteries placed under the floor pan of the vehicle). 15

16. Energy Storage Systems In HEVS, PHEVS, and EVs, the following energy storage systems are employed. Battery Types: Lithium-ion Due to their high energy per unit mass compared to other electrical energy storage methods, lithium-ion batteries are currently employed in the majority of portable consumer electronics, including cell phones and laptops. Additionally, they are very energy-efficient and have a high power to weight ratio. reduced self-discharge and strong performance at high temperatures Although it is possible to recycle the majority of lithium-ion battery parts, the expense of material recovery continues to be an issue for the sector. The majority of PHEVS and EVs on the market today use lithium-ion batteries, albeit the chemistry is frequently different from that of batteries used in consumer electronics. To lower the price and increase their useful life, research and development are continuing . 16

17. Battery Management System (BMS) Any electronic system that controls a rechargeable battery (cell or battery pack), such as by safeguarding it from operating outside of its safe operating range, monitoring its state, calculating secondary data, reporting that data, controlling its environment, authenticating it, and/or balancing it, is referred to as a battery management system (BMS). The BMS will also regulate the battery’s recharging by directing the energy that has been collected (through regenerative braking) back into the battery pack (typically composed of a number of battery modules, each composed of a number of cells). When constructing a BMS, many considerations must be taken into account. The precise end application for which the BMS will be utilised determines all other considerations. BMS are utilised in addition to electric vehicles (EVs) in any application that uses a lithium battery pack, including solar panel arrays, wind turbines, power walls, etc. No matter the application, a BMS design should take into account all or some of the following elements. 17

18. Regenerative Braking Regenerative braking is a technology used in some electric and hybrid vehicles that converts the kinetic energy generated during braking back into electrical energy. Instead of relying solely on traditional friction-based braking systems, regenerative braking employs an electric motor acting as a generator to capture and store the energy typically lost as heat during braking. This reclaimed electrical energy is then directed back into the vehicle's battery for later use, contributing to improved energy efficiency and an extended electric driving range. 18

19. OUTCOMES OF INTERNSHIP Gained Practical Experience Skill Development Increased Confidence Enhanced Work Ethics 19

20. INTERNSHIP CERTIFICATE 20

21. CONCLUSION In conclusion, my internship in electric vehicle technology has been an enriching experience. I've gained hands-on knowledge about the components, charging systems, and software used in EVs. The exposure to testing, data analysis, and safety standards has been invaluable. I appreciate the opportunity to contribute to sustainable transportation solutions. This internship has not only deepened my understanding of EVs but also enhanced my skills in teamwork, problem-solving, and continuous learning. I look forward to applying these experiences and insights in the dynamic and evolving field of electric vehicles. 21

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