Mercedes To Offer Wireless Charging From 2017, DC Combo Fast Charging In 2018

JUN 14 2016 BY MARK KANE 40

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

Mercedes-Benz wireless charging

Mercedes-Benz wireless charging

Starting next year, Mercedes-Benz has announced that wireless charging options will be offered on its plug-in vehicles.

The first model to offer inductive charing will be the face-lifted 2017 edition of the Mercedes-Benz S 500 e, which also gets a battery bump up to 13.3 kWh and a revised 50+ km/31 mile NEDC range (perhaps ~20 miles/32 km real world/EPA).

Mercedes’ 3.6 kW wireless charging station is designed for home use, and will charge at nearly 90% efficiency.  It certainly isn’t the fastest unit, but still ideal for short range, plug-in hybrid applications.

“One of the next steps on the road to the perfect electric vehicle and plug-in-hybrid is wireless charging. Inductive charging makes handling these vehicles even more convenient. Mercedes-Benz has been testing the contactless charging technology since 2015 with a test fleet of the current S 500 e. From 2017 the technology should be ready: with the facelift model of the S 500 e, the availability of an inductive charging system as an optional extra is planned, in addition to cable-connected charging. With this innovative technology, the electrical energy is contactlessly and safely transmitted via a magnetic field.

The system is comprised of two components: a secondary coil in the vehicle floor and a base plate with integrated primary coil. This is placed on the garage floor, for example, or in a protected area in front of a carport. Via a display message in the cockpit the driver can see whether the vehicle is in the tolerance range over the charging station. As soon as the charging position has been reached, charging automatically begins and is constantly monitored by the system. The electrical energy is transmitted contactlessly, without a charging cable, at a power output of up to 3.6 kW. With an efficiency rate of almost 90 percent, the high-voltage battery can be efficiently, conveniently and safely charged.”

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

Wireless charging of the Mercedes-Benz S 500 e plug-in hybrid

CCS (Combined Charging System) - single inlet for AC charging and fast DC charging

CCS (Combined Charging System) – single inlet for AC charging and fast DC charging

On the cable-connected charging side of things, Mercedes-Benz finally announced the implementation of CCS (Combined Charging System) from 2018, introducing it to all its future electric vehicles.

The CCS connection is capable of accepting 150 kW charging, with 350 kW to be perhaps introduced later in the future.

Why 2018? Well, becaase new all-electric long-range Mercedes are expected to appear at that time, starting with a new/upgraded B-Class 250 e we believe.

“AC + DC = Combined Charging System (CCS)

Public fast charging is increasingly gaining in importance. In the past years, Daimler, in conjunction with other automotive manufacturers, has decisively advanced the development of the Combined Charging System into an open and universal charging system for electric vehicles. The system pursues the goal of unlimited, global e-mobility. It expands the existing technical standard for AC charging of electric vehicles with the capacity for DC fast charging. From 2018 direct current charging based on the CCS standard will gradually find its way into all electric vehicles from Mercedes-Benz. Depending on the vehicle and battery system, this enables a charging capacity of up to 150 kW at fast charging stations. Perspectively, the system also enables a charging capacity of up to 350 kW.”

CCS (Combined Charging System) - single inlet for AC charging and fast DC charging

CCS (Combined Charging System) – single inlet for AC charging and fast DC charging

Categories: Charging, Daimler, Mercedes

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40 Comments on "Mercedes To Offer Wireless Charging From 2017, DC Combo Fast Charging In 2018"

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Are they going to follow the SAE J2954 wireless standard?

This is what I was wondering. Interesting that Mercedes makes this announcement shortly after the standard is revealed. I would certainly hope that they go the SAE J2954 route.

10% energy loss because you don’t want to plug it in? Is this the route we really want to go, is this really the best solution?

Yes, for the majority of average new EV buyers, I think this is what they will opt for. I would also like to know the efficiency of the AC onboard charger.
Go wireless!

Right now, any wireless system is using the onboard charger, but after the wireless apparatus.
So it doesn’t matter, wireless add loses anyway.

Sorry but wrong. Losses are not always added. My Plugless output is 214V DC, and indeed, does go thru the car charger but without any additional loss that the onboard charger usually causes, cause… well, it’s already DC! so it goes streight to the battery.
Obvious answers are often wrong without the appropriate knowledge.

I would presume your pack does not have a 214V charging voltage, so that voltage would still have to be stepped up by the onboard charger. So there will still be the loss from the onboard charger. However, this does save some loss from rectification, such that it is not directly additive.

Of course.
I stand, the losses just add.
Most pack need 370 volts or close, so 214 D.C volts isn’t gone cut it without step up and the usual DC/DC converter are not that much more efficient than converting AC to DC at the proper voltage.
But the losses had occurred in the high frequency voltage rectified to DC anyway.
I am not saying that it won’t be popular and it’s thru that it will get people jumping in the EV train, but don’t tell my it has no impact, because 10-12% more efficiency is welcome in just about everything.
Who wouldn’t like a 10% increase salary?

If you are referring to “Plugless”, the brand, no, their units do NOT output DC directly into the battery.

It merely supplies AC power to the onboard charger.

Yes, it is the best at least for plugin hybrids. Otherwise it is likely some people would get bored of plugging in and out every time and won’t do it at all.

Of course it is the way to go and yes this is the best solution.

Just change your refridgerator to a more energy efficient one and you have saved the difference, or change one ancient light bulb to a LED light.

Tobie, what if it indeed was the answer? let’s see it this way: We, geeks, love technology and many of us are so fond of our plug and enjoy plugging the car. I don’t. Of course, i’m handicaped but that had very little to do with my choice of going Plugless. It was a coincidence with added benefits. But since i walk with 2 canes, i did drop my plug once… The handle shattered in pieces on the ground. Since i’m a geek, i decided to go to the next level in EV, That’s wireless! Like it or not, most people don’t care for plugging a car everyday, even if they do have to go to the gas station once or twice a week for at least 10 minutes each time. That don’t really make sense but, hey, poeple don’t always make sense. So, here’s my point, if people don’t care for the plug then, get rid of it, and take the 12% efficiency loss which is only pennies a day anyway. And you then have a car that needs NO plug and no trips to the gas station. So you get people going from a 20% efficient gas vehicule… Read more »


I often choose to charge on L1 because it is more convenient (given my setup) than L2. I’m betting the efficiency for L1 is lower than L2 wireless.

Tobie said:

“10% energy loss because you don’t want to plug it in? Is this the route we really want to go, is this really the best solution?”

I deplore the additional inefficiency involved, but realistically I know this is the wave of the future. People are willing to pay for convenience, and this will be more convenient.

It will also make public charging stations more accessible. With no cable to be damaged or vandalized, and with the electronics buried under pavement in parking lots and at streetside parking, we should see fewer public EV chargers out of order.

No it is not. Conductive charging is better and there is no reason an automatic conductive charging system cannot be made for cars. Buses do automatic conductive charging through a pantograph, so cars can do the same but towards the ground on secured, somewhat higher than the ground, contacts. Wireless has taken front stage because it appears cool and magic but in the long run contact based systems will be regarded as the obvious low cost 100% yield solution. By the way all autonomous mowers already use automatic contact based charging not induction.

Consumers want “hands free”… they don’t care whether it is wireless or an autonomous conductive plug-in.

But, nerdy tech folks and penny pinchers will want the latter.

Tobie, you already loose 6-8% when you do plug in, anyway,…

Wrong Fred!
This is the losses of anything that is connected.
Guess what, your induction system is also connected to your electrical system in order to work, so if it’s a loses, it’s for all of it, but you have to add the conversion to high frequency, transmission and reconversion back to the normal AC cycling that yours on board charger need to work with.

Real genius we are witnessing here……..
These Mercedes guys. Scramble panic.

Wow, great news, especially about CCS. I guess Mercedes is getting serious about EVs.

It must just be hopped that 350 KW is not where CCS ends; otherwise they will stop just short of what needed to put the final nail in the gas car coffin. We need 500 KW to charge 150 KWh in 20 minute and ideally 1000 KW (1 MW) to charge in 10 minutes, so that it becomes similar to a gas car. This and only this will leave gas car advocates without any arguments against electrics.
That will be not only a great final achievement for cars but will also mean the start of serious possibilities in airplanes for which megawatt level is corresponding to a car base charging. On planes we will end with a Boeing e-777 charged at the 100 Megawatt level for a 10 minutes charging time.

First I can’t see plans using the same power plugs that cars use. Maybe not I doubt it. Two if we need to redesign the plug the next step up is CCS2 with the put even thicker pine on top of the plug instead of the bottom.

whether it is efficient or not, the mass market will see wireless charging as a significant value proposition

I think it makes a great OPTION. Personally I have no interest in it but if it helps get others to buy an EV then go for it!

2018? They are gonna lose a lot more marketshare to Tesla between now and then.

I think this is great and surprised Tesla does not offer it. I am glad Plugless offers it for Tesla’s at least.

I don’t need wireless charging, but my wife forgets to plug in her car all the time. I had to get the Chargepoint Home charger which sends me an alert every time its not plugged in after 8pm.

Let’s face it people are going to forget to plug in sometimes. Then when they wake up, there is no juice in the car to go to work.

At 13,000 miles a year driven and .15 cents/Kwhr it only costs about $50 dollars a year extra to charge with wireless. For comparison, if you buy a Big Gulp for $1.29 once a week then those Big Gulps cost you ^$67.

Acevolt, time to get your wife a Plugless System and make her happy…. cause, you know… 😉

Tesla will likely reveal an automatic charging system but, if they are smart, they will chose a contact based system so that it can also charge at high power at superchargers.
Tesla has already experimented with a snake charger for supercharger but it is rather costly and sensitive and above all unfeasible for automatic home charging. So Tesla would have to go with two systems, snake charger at supercharger and induction charger at home, or they can do a single system by adopting an under the car pantograph system that allow both home charging and high power supercharge.

I for myself actually love the idea of plugging in 😉
I guess; I’m just a weird nerd.

In my mind there is no doubt Tesla will have wireless charging for the 3. There is no other intelligent choice for an autonomous vehicule. And the summon feature is near useless without wireless charging. Mark my word, this will be part of ”the reveal part 2” for the 3.
And please, forget about the snake thing.

I think Driverguy01 may be right about wireless in the Model 3. Tesla has instead been content to build out the Supercharging network. Hydrogen keeps us tied to the old gas station model. Wireless charging when fully deployed will eliminate the need for gas stations. People will be able to drive from place to place and park over chargers just about everywhere they go and remain topped off. Wireless may be as revolutionary and disruptive as the electric car itself. Bye, bye gas station forever.

The problem has been speed…Even this Benz is 3.6kWh and I’m not sure if that’s accounting for the 10% loss or not…

The snake while overly complicated and expensive is at least both automated and fast…Yet I am surprised there has not been another automated cord solution, Roombas/iRobots already are pretty advanced figured for a grand you could have one with a pole plug in your car automatically and have the most efficient charger…

Again, The plug will still be usefull for long distances. But for everyday charging, 3.3KWh or 6.6KWh wireless is good enough for all.

So… will fast DC wireless charging possibly be something that would have potential lets say in 10+ years from now, or are there reasons that it would not? I know that for some applications like busses its already on the horizon, but what about 200-300 mile range EVs? Are there reasons for or against? I’d love to hear some insightful thoughts on this.

DC wireless doesn’t work; wireless requires alternating current to work since a fixed magnetic field will not induce a current in a receiving coil. DC charging is only possible though conductors. The only flexibility is the type of conductor, normally a metal but it could also be a special conductor that only conducts under specific conditions. There are now quiet amazing things in that area where materials only conduct when magnetized or when under a specific light or stress. Another alternative is plasma conduction where a laser transforms air into a conductor. It is hard on long range but much easier on short range. Again no conduction occurs if laser is off. Applied on a DC charger standard conductors need securing but with today’s electronics that’s easy to do. The special conductors systems could perhaps be self securing by their intrinsic working and possibly bypass the need for any extra safeguards. Laser conduction trough 2 small holes, for instance, need no extra securing at all since, laser out, conduction becomes impossible. Your car dive over the holes, two lasers shoot a negative and a positive on conducting mirrors and there you go “wireless” DC charging, although in reality your lasers… Read more »

Thanks for the info! So wireless DCFC seems unlikely in the future.

I could care less about wireless charging but…… for the wife who cant remember to take her phone with her…… yup I’ll take a seamless automatic wireless charging pad under the car. Pull in the garage and park and bam it starts charging.

If she forgets once, that should be ok with a Model 3. It has enough range to cover a few standard days. If she methodically forgets every day, yes that’s a problem.

It’s extremely sad that one of the key auto manufacturers in the world can’t get DC charging going before 2018….

Well, at least they doubled down on diesel: