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Showing posts with the label EV technology

How to maintain your EV Battery for longer life.

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  BY    AFZAL YOUSAF Electric battery is the power source that drives EV  and like every other part battery also degrades over time and its performance drops. Apart from conventional batteries, lithium ion batteries used in EVs requires a different type of maintenance. As battery is the most vital part, EV owners can take several steps to prolong the life of battery pack. In this article we enlist some important maintenance tips that can extend the life o your EV Battery pack. Balance your battery and periodic full charge Battery technology often has memory issues and lithium ion technology are designed to minimise this drawback. Large battery packs are complex and need proper balancing to extend its performance.  Cell balancing  is the process of equalizing the voltages and state of charge among the cells when they are at a full charge. There are always slight differences in the state of charge, self-discharge rate, capacity, impedance, and temperature cha...

Electric vehicle maintenance cost compared to fossil fuel vehicles.

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  BY    AFZAL YOUSAF One of the advantages of electric vehicle apart from greener and sustainable mode of transport is the less maintenance required. As world is in a beginning stage of a switch over from fossil fuel to electric vehicles, people are somewhat reluctant as they fear that maintenance cannot be done properly. Maintenance procedures of electric vehicles is not similar to conventional fossil fuel driven engine. Here we are trying to analyse the maintenance cost of EV compared to conventional vehicles. Fewer Moving Parts and Simple Mechanics Electric vehicles have fewer moving parts and their mechanism of operation is simple. Comparing to the parts of conventional fossil fuel vehicles, which consist of hundreds of moving parts like engine, radiator, piston, fuel pump, spark plug, timing belt and so on, thus a lot can go wrong in that complex operation. Electric vehicle mechanism is simple as mechanical elements and moving parts are limited and thus EVs have arou...

Toyota's game changing solid state battery for EVs 2021

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  BY    AFZAL YOUSAF Solid state batteries are considered as the future source of power that drives the electric mobility around the world. Advanced technology is the cure for the problems faced by conventional Li ion battery powered EVs and Solid state batteries are considered as one of the best cure. According to Nikkei Asia , Toyota is currently a world leader in solid state battery technology  and also another Japanese company, Nissan, whose first EV powered by a solid state battery could arrive in 2028. Toyota plans to unveil a vehicle fully powered by solid sate battery next year and it has more than twice range of the vehicles running in conventional Li ion batteries. Solid state batteries are a viable alternatives to li ion and it reduces the risk of fire as they no longer use aqueous electrolyte solutions , and also gives high energy density. Solid state batteries can be powered within 10 minutes and increase the range by multiple times. As name suggest...

Factors affecting Li ion cell performance and what you should know about it's manufacturing.

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  BY    AFZAL YOUSAF Electric vehicles are the sustainable mode of transportation for the future. As batteries are the source to drive electric vehicles, many companies started to research on batteries and manufacture. Battery energy storage system and cell chemistry of the batteries are under continues upgradation  and people are debating over its performance, efficiency and safety. Apart from cell chemistry, performance of the battery depends on various other factors. In this article you can read about factors affecting cell performance and things needed to know about li ion cells and its manufacturing. In Battery energy storage system, apart from battery cell, there are several other components that keeps the system function efficiently. It includes power conversion systems for charging and discharging and power control systems which controls the charging and discharging. Also cooling and other safety arrangements will be there. But here we focus mainly on battery...

Regenerative braking technology and its effectiveness, efficiency in electric vehicles.

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  Credit: Automotive iQ BY    AFZAL YOUSAF The term regenerative braking is familiar along with electric and hybrid vehicle technology. In an electric vehicle, regenerative braking is a key feature to save power and make vehicles more efficient. This energy saving technology is under continues research and upgradation by the automakers.  In this article, you can understand how regenerative braking works and its effectiveness in various vehicles. While motion, vehicles will have a lot of kinetic energy. When brakes are applied to slow down the vehicle, the kinetic energy has to go somewhere and in conventional IC Engine vehicles, this energy is wasted into heat energy. So all of that energy is lost to environment in the form of heat. Regenerative braking technology converts this kinetic energy lost into electricity and stores in battery. Electric motor acts as a generator and converts this kinetic energy losing while braking and stores in the battery with the help of ...

Modular EV Platform by Zero Labs can turn classic cars to electric.

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Credit: Zero Lab BY    AFZAL YOUSAF Zero Labs , A California based EV Workshop, launched a modular EV Platform which can turn every classic cars into EVs. Beloved classic cars can be restored and make suitable for future mode of transportation by converting them to electric. In this article you can read in detail about Classic electric platform by Zero Labs. Zero lab is describing this modular EV Platform as " Classic Electric Platform " as they aim to help people to keep every classic cars they love without affecting the future. Zero lab platform conversion will be available on wide range of vehicle formats as built to order commissions. Zero Lab's powertrain chassis can completely convert classic gasoline vehicles into Electric. Initial focus is on classic off-road vehicles but later it will be expanded to classic sports cars, muscle cars and pickups. Zero Lab design team already fabricated classic electric vehicles, including fully electric Ford bronco and Land rover ...

Electric vehicles have better off-road ability than IC Engine. Here is the reason.

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  BY    AFZAL YOUSAF Off-road and adventurous vehicles are one of the exciting segment in world vehicle industry. As Electric vehicles going to dominate vehicle industry in future, many companies already developed stunning electric SUVs. Electric propulsion so far avoided SUV design for deep off-road, but now its coming strongly and ready to dominate the segment. New Breed of electric SUVs and pickup from companies like Tesla, Rivian, Nikola, GM, Ford and many more companies are very promising and properties of EV makes it easier and better on off-road.  Electric vehicles have better off-road ability than IC Engine vehicles. Read why EV has an upper hand in off-road ability. Main reasons are listed below. Easy Modulation of Electricity Electricity is easy to modulate and control. So this adds an advantage in EVs for easier control by ease of adjusting the torque sent to electric motor. In IC engines, need to cut the fuel supply and get the response a second lat...

Wireless BMS Technology for Electric vehicles.

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  BY    AFZAL YOUSAF Battery management system (BMS) is an important component in electric vehicles as it monitors and controls the battery working.  Battery voltage, current, temperature is measured by BMS and converted into sub system of BMS for thermal management, state of health estimation and the estimation of state of charge. BMS effectively contributes for the enhancement of battery performance and life span. To perform its operations many connections are there from and to BMS, which makes it a bit complex system. But as EV technology is evolving, Wireless Battery Management systems are under development and testing by various companies. In this article you can read in detail about Wireless BMS Technology developed by Visteon. Many companies are working on developing wireless BMS Systems and as per reports, Visteon , an American global automotive electronics supplier company announces first production intent wireless battery management technology. Visteon say...

Sensorless BLDC Motor technology for Electric vehicles.

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  BY    AFZAL YOUSAF Brushless DC Motor (BLDC)  is widely used in Electric vehicles like E-bikes, E-rickshaws, small electric loading vehicles etc and is more popular among EV enthusiasts and designers. BLDC is a successor of brushed DC Motor and it uses Hall sensors instead of brushes to control the drive signals. Brushless motors have improved efficiency and reliability than brushed ones.  Also it produce large amount of torque and a wide speed range. But some BLDC Motors do not have sensors. They are called Sensorless BLDC Motors.  In this article, you can read about the technology and working of Sensorless BLDC Motors. In Sensorless BLDC Motor, Instead of using Hall effect sensors to determine position or speed of rotor, we are using the phenomena of Back EMF. This sensorless BLDC Motor is also called sensorless trapezoidal controlled BLDC as voltage waveforms of these have a trapezoidal shape. In this sensorless technology, Back EMF is used to determin...

History of Electric cars and Why they are the future cars.

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BY  AFZAL YOUSAF "In order to have clean air in cities, you have to go electric." and We will not stop until every car on the road is electric"  Said by Tesla CEO Elon Musk . So what are the factors that making Electric vehicles as the future vehicles??? Lets Have a brief look at the history of electric cars. Electric cars are actually nothing new to humankind.First pure electric cars were made on 1832, well before Gasoline powered car. It was developed by Robert Anderson.But electric cars came on practical on late 1870s. In fact the first car to go faster than 100kmph is an electric one at 1899 called" JAMAIS CONTENTE " meaning "never satisfied". world's first known electric car made by Thomas parker in 1884.    By 1910, they were common on american streets,as 38% of the streets were occupied by electric cars, compared to 40% and 22% occupation by steam and gas powered vehicles respectively. But then came Ford model T ,signif...