Three, as De La Soul effortlessly laid out for us all those years ago, is the magic number. Three minutes, in this case: the charging time for 62 miles of range for an electric car, direct from a new super-fast, prototype charging station in Bavaria.
And in 15 minutes, this charging station will have completely recharged your electric car. Well, nearly recharged – 80 per cent, which is as good as full anyway. The aim is to make recharging EVs as easy as filling up a tank of fuel. No guarantee that the person queued up in front of you at the station won’t also be conducting a weekly shop, mind.
This new prototype charging station is a joint project headed up by BMW. It’s joined by Porsche, Siemens, Allego and Pheonix Contact E-Mobility, and this consortium reckons that 450kW is the key to driving down those recharging times, because it’s between three and nine times the capacity of today’s DC fast-chargers.
There’s a Siemens energy supply system that can handle up to 920 volts (what researchers reckon future EVs will have), and cooled high power charging cables from Pheonix. That, and a no doubt brain-meltingly complicated system that integrates high-power electronics and vehicle communication. Which basically means any type of EV can use the same charger. A simpler infrastructure, then. At last.
The station has a modular architecture so that several cars can charge at the same time, and can be deployed for various purposes – things like fleet charging and along motorways.
Here’s an example. The BMW i3 research car used for this project was plugged into the prototype station, complete with its 57kWh battery. In just 15 mins, the i3’s battery had gone from ten per cent full, to 80 per cent full.
The Porsche research car had a slightly bigger battery pack – 90kWh – and in less than three minutes of over 400kW of charging boost, got 62 miles of range. Just enough time to grab those 2 for 1 multipack chocolates, then.
Electromagnetic field is the key to contactless transmission of electricity.
BMW Wireless Charging enables electric energy from the mains supply to be transmitted to a vehicle’s high-voltage battery without any cables – when the vehicle is positioned over a base pad. This can be installed in the garage, for example, and the charging process started as soon as the vehicle has been parked in position (without any further input from the driver). The launch of this technology sees the BMW Group move another step closer to an infrastructure that will make charging the battery of an electrified vehicle even simpler than refuelling a car with a conventional engine.
Available to customers as an option, BMW Wireless Charging consists of a Inductive Charging Station (GroundPad), which can be installed either in a garage or outdoors, and a secondary vehicle component (CarPad) fixed to the underside of the vehicle. The contactless transfer of energy between the GroundPad and CarPad is conducted over a distance of around eight centimetres. The GroundPad generates a magnetic field. In the CarPad an electric current is induced, which then charges the high-voltage battery.
The system has a charging power of 3.2 kW, enabling the high-voltage batteries on board the BMW 530e iPerformance to be fully charged in around three-and-a-half hours. And with an efficiency rate of around 85 per cent, charging with the BMW Wireless Charging system is very efficient, too.
sedan hybrid interior car
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I was finally able to log a 150 A session on the ChargePoint Express 250 station at ChargePoint Headquarters. The session went mostly as expected; however, the first step down from 150 A didn’t occur until 54% battery. Also, because this charger is limited to 150 A (the Bolt EV’s maximum charging current), I still wasn’t able to confirm whether the Bolt EV can draw additional power for battery conditioning and climate control when more than 150 A is available from the charger.
EffcientDynamics is the latest technology adopted in some of BMW models like 1 series, 3 series and 5 series. This technology aims to deliver more fuel efficiency and eco friendliness without comprising the on the driving experience.
Following are the fuel saving features of EffcientDynamics in BMW
Auto start stop
This saves plenty of fuel and emissions from the car being released. When cars are idle the car is switched off so energy is saved. The engine is able to be turned on simply by pressing down on the clutch. Brake energy regeneration Applying the brakes will not waste energy with this technology; in fact it will reuse it. The battery is recharged using the recycled energy. In effect less C02 emissions are released along with your car having better fuel efficiency.
Electric Power Steering
The steering system is designed in such a way that energy is only used when the wheel is actually turned, and not when the car is driving straight. This naturally reduces fuel consumption. Optimum shift indicator This is a recommendation system built within the car to suggest when to change gears. Following the indicator will give great fuel efficiency as the car will not over rev.
The bodywork as well as the engine is both made of lighter materials. This naturally reduces the power needed for the car to drive forward, thus reducing carbon emissions and fuel consumption. The car also much more responsive and has improved handling.
Reduced rolling resistance tyres
Using this technology a lot less friction is caused between the tyres and road. This effectively brings about better fuel efficiency and allows the car to emit less C02 emissions.
Engine oil and transmission fluid are designed to flow with more efficiency throughout the car, working together. Less fuel consumption and C02 emissions are achieved, along with a smoother drive.
Vents are closed automatically to help the engine perform better, quicker from the beginning of journeys and for to be more fuel efficient. Instead of the car wasting fuel to power the engine, vents are opened and air is let in. This naturally reduces the need for fuel to be used. The vents however will be open to cool the car’s engine components when needed.
Efficientdynamics is an excellent example of BMW’s commitment to greener environment and big step toward the company’s vision of ’emission free driving. Servicing BMW as per the manufacturer schedule is also essential for achieving the maximum fuel efficiency.
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The majority of EV charging occurs at home. In this video we go over the different options available to EV owners, from using your EVSE with standard wall outlet to installing a home charger in your garage.
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Well good morning, good afternoon and good evening, wherever you are in the world, hello and welcome to the Friday 14th September edition of EV News Daily. It’s Martyn Lee here with the news you need to know about electric cars and the move towards sustainable transport.
Thank you to MYEV.com for helping make this show, they’ve built the first marketplace specifically for Electric Vehicles. It’s a totally free marketplace that simplifies the buying and selling process, and help you learn about EVs along the way too.
“Due to a large increase in vehicle delivery volume in North America, Tesla customers may experience longer response times. Resolving this is our top priority.”
Good news on all fronts, that their hyper-detailed CEO is focussing on Customer Service, and also that must mean he’s not spending 20 hours a day fixing production issues.
AUDI WANT YOU TO NOTICE THEIR (CHARGING) SPEED
Fresh from excitement about the Mercedes EQC, which looks incredible, today I want to go big on the Audi e-tron Quattro, a car i’ve raved about for months and now it’s days away, being revealed in San Francisco on Monday 17th September. We know it’s called Quattro, so that’s a dead giveaway to motors on the front and rear axle, for 4 wheel drive. In a previous test we also heard it has a boost mode for up to 8 seconds of full-banzai attack driving. The battery is a 95kWh pack so, on a heavy SUV, any range number over 200 miles in the real world on a cold, wet day would be good. If you’re Audi and you’ve been building your showpiece EV, the e-tron Quattro, it must be a bit annoying to lose out to certain performance specs like the Tesla Model 3 doing 0-60mph in 3.5secs (and quicker if you change the tyres), especially as performance is a pillar of the Audi brand. All we know is the e-tron will get to 60mph in under 6 seconds. There’s a new teaser called “electric has gone thrilling”. But that hasn’t stopped them promoting the speed of their first EV, but specifically the speed it charges. They say its the first series-production car to charge at 150kW. We’ll see the car unveiled next week without the camouflage. In advance of that, Audi announced a scheme for Audi e-tron Quattro owners to access a charging network of 72,000 chargers across Europe, and that includes the network they’re part of which is IONITY. IONITY has big plans for their 350kW chargers with 400 promised by 2020, however the handful out there at the moment are few and far between. The same goes for Electrify America which has a large rollout to do, very quickly, to start installing them in respectable numbers. Audi’s solution also isn’t quite as frictionless as Tesla because you need a special card at launch but they do have plans the fix that. To start with, the access card will handle all the billing across multiple networks, in 16 countries. Audi told us today: “Drivers who charge their e-tron overnight and set off the next morning with a full battery don’t have to worry about stopping at a charging station during their normal daily drive. The range of more than 400 kilometers (248.5 mi) in the realistic WLTP cycle enables electric driving without compromise. For longer distances, Audi offers a smart solution in the shape of the e-tron Charging Service, which handles the charging process swiftly and simply. The e-tron Charging Service builds confidence in our electric initiative. Following on from the Audi e-tron, in 2019 the Audi e-tron Sportback will be the second electric car to go on sale, followed in 2020 by the Audi e-tron GT from Audi Sport.” “From 2019 onward, charging will be even more convenient for Audi customers. This is when the plug & charge function will be introduced. It enables the Audi e-tron to authenticate itself at charging stations via state-of-the-art cryptographic procedures, after which it is authorized – a card will no longer be necessary. All Audi e-tron models rolling off the assembly line from mid-2019 will support this function as standard. Customers can also use plug & charge privately to unlock their connect charging system. This then eliminates the need to enter a PIN to protect against unauthorized use.” “Audi offers various solutions for charging in the garage at home: The standard compact mobile charging system can be used with either a 230 volt household outlet or a 400 volt three-phase outlet. The optional connect charging system doubles the charging power to as much as 22 kW. The second on-board charger required for this will be available as an option at some point in 2019.” My take: for Audi buyers they expect nothing less. No Audi owner wants a wallet full of membership cards or fobs for different networks driving across Europe….