Showing posts from April, 2020

Battery swapping Technology for EVs

BY  AFZAL YOUSAF Battery charging has a pivotal role in the adaptability of EVs. As battery is the only source of energy, the current charging scheme is not completely satisfying the customer demands. It includes plugging the EV into an outlet,either individual household or in a battery charging station and leave the vehicle for hours until it's fully charged. The time taken for charging EV is very long compared to the refuelling of gasoline-powered vehicles. This charging time in EV is considered as the biggest barrier in adoption of electric vehicle. On other hand, EVs are offering decent range suitable for daily travel, many users consider charging as an important factor in their driving needs. Another hurdle faced by the charging station authorities is the cost of building charging station facility and required real estate. EVs take hours to fully charge, so all these time it needs a parking space. So deploying a battery charging station is very costly, especially in de

Electric and Hybrid vehicle Powertrains.

BY  AFZAL YOUSAF In a vehicle, Powertrain comprises the main components that generate power and deliver that power to the road or any medium they travel. In EVs, the vehicle is powered at-least in part by electricity and electric motor. For fully electric vehicles, they eliminate engine altogether and solely depends on electric motor. EV configuration not only include 100% electric vehicles. Various hybrid, mild hybrid, plug-in hybrid vehicles are there. Some differences are there in configuration of Powertrains in these vehicles. Different Powertrain configurations of EVs are:- BATTERY ELECTRIC VEHICLES BEVs are entirely powered by electric energy. Powertrain of BEVs is less complicated and designed according to that. It consist of a large motor, a battery pack and a transmission system. Type of transmission used varies the clutch, gearbox, differential and fixed gearing. There are many variations depending on all the factors mentioned above. However, a basic BEV system is

Types of Batteries used in Electric Vehicles.

BY  AFZAL YOUSAF Nowadays, Electric/battery vehicles are widespread and most popular option for future mode of vehicles. In EVs, batteries are the most important and expensive component. Batteries stores the energy and converts this energy into motion on wheels whenever required. Different types of batteries are used in electric vehicles. Each battery types have different characteristics and energy density. Energy density is basically amount of energy in given mass, usually expressed in wh/kg. Four main kinds used in EVs are:- 1. Lead acid 2. Nickel Metal hydride 3. Lithium ion 4. Ultracapacito rs Lead acid They are one of the oldest types of rechargeable batteries. Invented by a french physicist Gaston Plante on 1859. This battery technology is fully mature and were originally used in early electric vehicles. Despite having small energy to volume ratio and energy to weight ratio, they have ability to supply high surge contents makes it relatively large in

Top 10 reasons why EVs are better vehicles

BY    AFZAL YOUSAF Automotive giants and experts are revealing that electric vehicles are the future vehicles. But gasoline vehicles are still performing good on all aspects. Then how we can say that electric vehicles are better than IC Engine vehicles. Here we enlist top 10 reasons why EVs are better than Gasoline powered vehicles. 1#  Initial torque  Electric vehicle can produce more torque on stand still. Electric motor can help drivers to reach maximum torque on zero rpm . Because electric motor uses electric current, which moves through a magnetic field and creates a force necessary to rotate the armature and get the car moving. So electric vehicles have high torque at the start and gives ferocious acceleration experience to the driver.                               2#  Better Handling and Stability In EVs, Battery being the heaviest electric component is placed very low, on the body floor. This results in a very low Center of Mass and gives more stability, handling fo

Types of Electric vehicles on the road today

BY  AFZAL YOUSAF TYPES OF ELECTRIC VEHICLES The term Electric vehicle is familiar to almost everyone out there, whereas few of them knows the different types of electric vehicles . Each and every one of them have its own advantages and disadvantages, Regenerative Braking mode, through which they recharge their batteries using recovered energy from barking rather than loosing the energy in the form of heat. Four Types of EVs on road today. 1#. BEV - BATTERY ELECTRIC VEHICLE 2#. PHEV - (PLUG IN) HYBRID ELECTRIC VEHICLE 3#. HEV - HYBRID ELECTRIC VEHICLE 4#. FCEV - FUEL CELL ELECTRIC VEHICLE BATTERY ELECTRIC VEHICLE BEV runs entirely on a battery without an internal combustion engine.It has an electric drive train. Electricity is stored in onboard batteries that are charged by using electricity grid. And this battery in turn powers the one or more battery in the power train. More about BEVs Initial buying cost is high compared to similar gasoline cars. You can sav