Chevrolet Volt Wireless Charging System Unveiled

5 years ago by Lyle Dennis 11

Chevrolet Volt With A Wireless Charging System

A Pennsylvania company called Momentum Dynamics has equipped a Chevrolet Volt with its proprietary wireless charging system prototype .

The system allows for the car to recharge without plugging in, simply by rolling over and siting atop an inductive charging mat.  The vehicle is automatically recognized and charging begins seamlessly.

The company has been working with numerous automotive OEMs to integrate this technology into future vehicles. At first the plan is to use the system with fleet vehicles, by the end of the year they plan to equip three Chevrolet Volts and five buses.

Though the system at present works when the vehicle is stationary, it could work at speeds up to 40 miles per hour as the vehicle drives over the mats.  It is also powerful and can charge at rates greater than a level three charger.

For this convenience it is expected to cost an owner just short of $10,000 for an after market kit.

Source (MLive)

11 responses to "Chevrolet Volt Wireless Charging System Unveiled"

  1. vdiv says:

    Whoa! Now we only need to line up the interstates with these, and have a dedicated EV lane 🙂

    1. Brian says:

      And reduce all speed limits to 40 mph 😉

  2. Bob Jordan says:

    $10,000? Forget about it! I’ll stick with the charging cord that came with the car. Based on my personal driving routine, I can’t justify the 240V option, let alone 10 grand!

  3. JEC says:

    Does anyone know the efficiency of using this wireless charging system? Seems, since we really want to strive to conserve energy and save money, that having a charging system that is only 60 or 70% efficient, would be a problem (I just made up the 60-70%, since that is really the question I have).

    The fact that you could actually be driving 40 mph and charging at the same time is VERY interesting. And, if can charge at rates > Level III, this makes it even more interesting (I am really surprised that they can possibly charge at that rate, wirelessly!, actually I am near unbelieving).

    So, with some quick and dirty math, a level III charger will charge at 60 Kw/hr, and if you are driving 40 mph, then you would need to recharge at a rate, based on your battery capacity. So, lets just say our new Volt uses 10 Kw to go 40 miles (nice numbers, make my math easy!). So, traveling at 40 mph, and using 200 W/mile, I can go my 40 miles, so I need to regain 10 KW, and running at 40mph across my wireless charger, I would need to go 60 Kw-hr divided by 10 Kw = 6-hr divided by 40 mph = then inverter = 6.67 miles.

    So, for a Volt with a 16 Kw-hr battery, that uses only 10 Kw-hr, I would need to have nearly 7 miles of “charging lane”, every 40 miles, to allow me to run for infinity. Or another way would be to say I need about 1 mile of charging lane for every 6 miles of operation.

    I did not double check my math due to pure laziness, so please let me know if you see any discrepancies.

    1. JEC says:

      250 Watts/mile, not 200….opps.

      Note: This assumes I only want to slow to minimum of 40 mph, so if you slow down more, you would need less miles of charging lane. So, if I run at 20 mph, I would only need about 3.5 miles of charging lane every 40 miles. But, my guess is no one wants to go 20, or even 40 mph, they want to run at highway speed on the highway. So, in actuality, you would want to put charging lanes in more congested areas like cities, where you have to go slow (or at least you should).

      If it would possible to make charging a non-thinking item, the EV’s would rule the road.

      1. Brian says:

        “If it would possible to make charging a non-thinking item, the EV’s would rule the road.”

        Charging today’s Volt/Leaf/etc is already less of a “thinking item” than going out of your way to a gas station. By your logic, EV’s should be well on their way to ruling the road…

        1. JEC says:

          I was more referring to the fact that you are range limited, and stopping to “fill up” with a charge needs to be the non-thinking part. Stopping to fill up for gas every 300-400 miles, and taking about 5 – 10 minutes is the reality with an ICE. Taking 30 minutes on a level 3 is just to long for most (Not that it would stop me from going electric, but I am not in the majority I believe).

          I think if it was possible to add some type of on the move charge pads, that would eliminate another barrier. But in reality, I really do not see this happening any time soon, unfortunately. The infrastructure change is just to great, and would take both money and lots of time to bring to reality.

    2. Jay Cole says:

      As far as I know (I just decided to type that out for one to see how it feels), there are now currently 3 wireless after market systems for the Volt.

      Now depending on how you are measuring the losses (A-Charging station output pad to car, or B- Grid to charging startion pad to car) you are between 85 and 90%.

  4. Brent Moyer says:

    The prices mentioned in the article are not necessary for home-based
    chargers, where you have one owner who owns one EV and owns one charger.
    That may be the paradigm for current home-based EVs, but the idea is that
    these wireless chargers will be priced at this level for public spaces.
    In public spaces, the price of the charger is not paid for by the vehicle
    owner, but by the property owner. The beauty of wireless charging is that
    it enables fast opportunity charging in any weather with very low TCO,
    which is exactly what the industry needs to grow. So don’t fret bout the
    apparent high cost — if true, these prices are far lower than Level 3

  5. Nelson says:

    So now when you’re stopped at a red light, instead of wasting gas you can be charging up. The future looks great.

    1. Fabian says:

      California should line these things up on their HOV lanes..