ELECTRIC VEHICLE REVOLUTIONS
HOW NEW EMERGING VEHICLES ARE
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Language: en
Added: Sep 05, 2024
Slides: 17 pages
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The Electric Vehicle Revolution: A Greener Future on Wheels Mr. Nitin Panchal M. Tech Automobile
Introduction As we all know that the Automobile sector has took many heights in growth from past few years and going on. With this growth there is also drastic increment seen on the various ambient parameters , it is necessary to find alternative fuels or ways to overcome from such dangerous parameters. Here the electric mobility is the best alternative compared to the conventional I.C.Engine based mobility. The importance of Electric Vehicles (EVs) cannot be overstated in the context of our contemporary world facing numerous challenges related to climate change, air pollution, and energy sustainability. Here are some of the key reasons why EVs are crucial: Reduced Greenhouse Gas Emissions Improved Air Quality Energy Efficiency Energy Independence Lower Operating Costs Innovation and Technological Advancements Noise Reduction Job Creation Public and Private Sector Initiatives
What are Electric Vehicles? Electric Vehicles (EVs) come in various types, each with distinct propulsion systems and capabilities. The three primary types of EVs are Battery Electric Vehicles (BEVs), Plug-in Hybrid Electric Vehicles (PHEVs), and Hybrid Electric Vehicles (HEVs). Here's an overview of each type: Battery Electric Vehicles (BEVs): Propulsion: BEVs are fully electric vehicles that run exclusively on electricity stored in their onboard battery packs. Charging: They must be plugged into an electric power source to charge their batteries. This can be a standard electrical outlet or a dedicated charging station. No Internal Combustion Engine: BEVs do not have an internal combustion engine, and they produce zero tailpipe emissions. Range: Their driving range is determined by the capacity of the battery, and typical ranges are increasing with advancements in battery technology.
Electric vehicle
Plug-in Hybrid Electric Vehicles (PHEVs): Propulsion: PHEVs have both an electric motor and an internal combustion engine (usually gasoline), allowing them to operate in electric mode, gasoline mode, or a combination of both. Charging: PHEVs can be charged from an external power source, which gives them a certain amount of all-electric range. When the battery is depleted, they operate like conventional hybrid vehicles. Reduced Emissions: In electric mode, PHEVs produce zero emissions, making them a cleaner choice for short trips and daily commuting. Range: PHEVs typically have a limited all-electric range, which can vary depending on the vehicle model and battery capacity. Hybrid Electric Vehicles (HEVs): Propulsion: HEVs have an internal combustion engine and an electric motor. They are not designed to be charged externally but use regenerative braking to charge a small battery that assists the engine. Charging: Unlike PHEVs and BEVs, HEVs do not have a plug for external charging, and they do not operate solely on electric power. Fuel Efficiency: HEVs are designed to improve fuel efficiency by using the electric motor to assist the engine during acceleration and certain driving conditions. They also use engine shut-off at idle to save fuel. Lower Emissions: While they do not run solely on electricity, HEVs produce fewer emissions and have better fuel economy compared to traditional gasoline vehicles.
Types of Electric Motor Driveline PMSM MOTOR BLDC MOTOR
Why Electric Vehicles? Electric Vehicles (EVs) offer a range of advantages, making them a compelling and sustainable choice for modern transportation. Here are several key reasons why individuals, governments, and businesses are increasingly turning to electric vehicles: 1. Environmental Benefits (Reduced emissions) 2. Energy Efficiency 3. Economic Advantages (Lower operating costs) 4. Energy Security 5. Quiet and Smooth Ride 6. Instant Torque 7. Global Climate Change Mitigation
How Do Electric Vehicles Work? Battery Pack Electric Motor Power Electronics (Inverters, Converters) Charger Onboard Computer and Control Systems Cooling and Thermal Management High-Voltage Wiring and Connectors Regenerative Braking System Transmission Energy Management System (EMS) DC-DC Converter Auxiliary Systems (Heating, Air Conditioning, Infotainment) Charging Port Body and Structure Tires and Suspension Safety Systems (Airbags, ABS, Stability Control, ADAS) All this work together to make an Electric Vehicle
Regenerative Braking Braking Mechanism: When a driver applies the brakes or eases off the accelerator pedal in an EV, the electric motor functions as a generator. It begins to convert the kinetic energy of the moving vehicle back into electrical energy. Conversion to Electrical Energy: As the vehicle slows down, the generator creates an electrical current by using the rotating wheels to spin the motor. This process converts kinetic energy into electrical energy, which is then sent to the battery for storage. Charging the Battery: The electrical energy generated during regenerative braking is used to charge the EV's high-voltage battery. This stored energy can be used later to power the vehicle and reduce the demand on the battery, ultimately improving efficiency and extending the driving range. Smooth and Controlled Deceleration: Regenerative braking provides a controlled and often smooth deceleration that can be customized based on the driver's preferences. It is different from traditional friction braking, which dissipates kinetic energy as heat through brake pads and generates wear and tear on the braking system.
Efficiency and Energy Savings: By recovering and reusing energy that would have been wasted in a conventional vehicle, regenerative braking significantly enhances the energy efficiency of EVs. It helps reduce the overall energy consumption, especially in stop-and-go traffic and during downhill descents. Single-Pedal Driving: Many EVs offer a "one-pedal driving" experience, where the driver can control acceleration and deceleration with just one pedal (usually the accelerator pedal). Releasing the accelerator initiates regenerative braking, and pressing it accelerates the vehicle. This simplifies driving and further enhances energy recovery.
Environmental Impact Reduction in Greenhouse Gas Emissions Air Quality Improvement Sustainable Materials in EVs
Battery Technology In Electric mobility the battery performance and its life cycle is the most important factor for a safe and stable ride. In electric mobility majorly 3 kinds of battery packs are used as following. 1. Lithium-Ion Batteries 2. Lithium- phosphate Batteries 3. Nickel-Metal Hydride Batteries 4. Lead-Acid Batteries Further more now a days researches are made on the ULTRA CAPACITORS as a battery cell because ultra capacitors have low energy density, they have very high power density, which means they can deliver high amounts of power in a short time. Ultra capacitors can provide vehicles additional power during acceleration and hill climbing and help recover braking energy. They may also be useful as secondary energy-storage devices in electric-drive vehicles because they help electrochemical batteries level load power.
Future of Electric Vehicles As we all know that the era of EV has begun and now a days it is the best alternative way of fuel based mobility. Main benefit of the EV is cost effective and zero emission, due to this it will become versatile in next few years. Now a days the private transport and public transport is directly switched to EV and in few time the Heavy goods transportation will be also transfer to the EV. Even more in future there is also autonomous vehicles can be available for safe and effortless ride. The biggest challenge now a days with EV is recharging time of battery, in future the micro solar panels will also be help full for the quick and continuous charge of battery will give the best run time.