英文版PPT-Electric Vehicle.ppt

1、An introduction to EVs,EV School presents:,An introduction to Electric Vehicles(EVs),By Gloria and Justin,What is an electric vehicle (EV?),Anelectric vehicle(EV), also referred to as anelectric drive vehicle, uses one or moreelectric motorsor traction motorsforpropulsion.,Definition of EV,Why EV be

2、comes a hotspot?,1.Energy Crisis When the last drop of oil in the world runs out, normal cars powered by oil will never be driven.,2.Emissions The burning of oil lesds to serious atmosphere pollution.,Why EV becomes a hotspot?,Faced to the looming en-ergy crisis, it is vital to co-ntrol transportati

3、on and adjust the energy industry.,Cars bring much convenience to peoples daily life, however, they cause environmental po-llution, noise pollution and so on.,What is Regenerative Braking?,Regenerative braking captures the energy from braking, normally lost as heat . Regenerative braking uses it to

4、top up the battery.,Regenerative braking As the car brakes, the energy of motion from the wheels is tra-nsferred to the electric motor The electric motor act as a ge-nerator,producing electricity This electricity is sent to the b-atery where it is stored.,What does an EV look and sound like?,Sounds

5、silent when running as has less moving parts,Looks like a normal car,Are EVs better for the environment?,They produce 27 per cent less CO2 than petrol cars. They help to reduce greenhouse gas emissions. They produce no carbon emissions when powered using renewable energy.,EVs compared to normal cars

6、,Comparison of Electric Vehicles and Normal Cars,Benefits of Electric Vehicles,EVs are cheaper to run because electricity is cheaper than petrol. EVs are better for the environment. EVs can reduce noise pollution. EVs have less environmental impacts across their life-cycle (manufacturing, use and di

7、sposal).,What are some disadvantages of EVs?,They are currently more expensive than normal cars There are not many places to charge cars. They can only travel 100-160km between charges. Charging can take hours. Their silent operation are potentially dangerous for pedestrians.,Types of EVs,Battery El

8、ectric Vehicles(BEVs) Battery electric vehicles(BEVs) is driven by electric motor , motor drive electricity is from on-board rechargeable battery or other energy storage devices. The batteries of BEVs are in large weight, vehicle range of BEVs is small, BEVs are more suitable for places whose geog-r

9、aphical area within a small range.,Hybrid Electric Vehicle (HEV),Types of EVs,Hybrid Electric Vehicles (HEVs) are equipped with two power sources , the traditional internal combustion engine (gasoline engine or diesel engine) and electrical power supply (battery and motor). HEVs can performance as n

10、ormal cars, which can operate in high-speed environment and be used for a long distance.,Plug-in HEV,Plug-in Hybrid Electric Vehicles(PHEVs) have battery (energy storage) system and flexible power electronic devices connected to the grid. PHEVs can charge the battery from the power grid as the load,

11、 but also can be performed as power supply under the right circumstances .,Fuel Cell Electric Vehicles(FCEV) Fuel Cell EVs are powered by on-board batteries. FCEVs have diverse fuels. Their on-board battery capacities are larger than BEV, vehicle range and power are slightly higher than BEV.,Types o

12、f EVs,Three good factors Good Products;Good Infrastructure;Good Business Model,The Goals of Future EVs,Good Products High Performance & Resonable Cost I:Integration of Automotive Techology and electrical Technology A:Alliance of Auto Makers and Key Component Suppliers,The Goals of Future EVs,Good Infrastructure,Innovation EV Business Model,The Goals of Future EVs,“Two Integrations” Integrate EV with Sm