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Autonomous Home Charging: Any Interest?

Discussion in 'Charging and Infrastructure' started by efontana, Apr 14, 2017.

?

Which type of flush mount charger would you prefer?

  1. A Tesla Snake that comes out of a floor safe

    2 vote(s)
    12.5%
  2. An inductive charger with no moving parts, but twice the carbon footprint

    0 vote(s)
    0.0%
  3. An efficient inductive charger that has some moving parts (simpler snake but more visible port)

    2 vote(s)
    12.5%
  4. No need for an autonomous plug

    12 vote(s)
    75.0%
More threads by efontana
  1. efontana

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    Condominium or apartment home charging poses problems of unsightly cords that make the public areas look like a service station. The snake maybe monumentally good, but it becomes a clutter hazard that other drivers and skate borders can run into.

    If you want a virtually invisible charger, say flush with the pavement so street sweepers will not damage it, which do you prefer: a) a snake with electrical contacts that comes out of the ground, b) a no moving part inductive charger with twice the energy losses of the snake, c) an electric toothbrush like charger that is as efficient as the snake with no high voltage electrical contacts to wear, short or contaminate, but does have moving parts?

    Here is the transfer to battery efficiency of the 3 options, but the first and last do require motion to engage.
    Charger2.png
     
  2. garsh

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    Autonomous charging is overkill for something like apartment/condominium charging. All you need is a post on which to mount a charger. It's simpler, less expensive (to install & fix), and more efficient.
    [​IMG]
    Anything flush with the road is going to become a pain. Harder to run electric lines to it. Harder to repair/resurface/seal the pavement, lest you ruin the flush charger in the process.
     
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    • efontana

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      What do you think about a docking post, like a bollard, that the car automatically backs into. It would be mounted on the edge of the walk, much like what you have shown?
       
    • garsh

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      I still don't see the need for something autonomous in this situation. It's not too much trouble for somebody to plug it in, even if the car parks itself. And it would charge more efficiently.

      Autonomous chargers are only really needed for autonomous vehicles with no passengers. I'd concentrate on those types of scenarios. For example:
      1. You're moving across country. You can just send your autonomous vehicle on its merry way and have it arrive at your new home. But it's going to have to charge itself along the way. You probably want superchargers with charging snakes for this scenario though.
      2. My car drops me off at work downtown. Parking is expensive and/or impossible to get there, so you send the car somewhere outside of town to park. The car charges at this parking location. This could be autonomous, or it could be a service, with a lot attendant to plug in the vehicles that pay to park there.
      3. Same as scenario #2, but I send the car home. Now you pretty much need autonomous charging. I'm not sure how many people would choose this over parking at work, or a lot in between like in scenario #2.
       
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      • MelindaV

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        question is why?
         
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        • efontana

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          Thank you for the scenarios. They help.

          The data isn't clear on charging more efficiently. The Leaf charger is way less efficient than the toothbrush inductive charger. The BMW is a toss up. I don't know about Tesla - especially the Model 3 where they had the A team from the A supplier.
           
        • efontana

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          Thank you for asking.

          There are several reasons that apply to uncontrolled spaces.

          a) Theft of the cord was a primary reason for out of service chargers with early public chargers. This varies with the price of copper. Eliminating the cord and the contacts reduces the incentive to steal.

          b) Some consider the post and cord unsightly and a physical obstacle... Maybe people on the condo board environmental committee. Visual clutter rarely adds appeal to real estate property.

          c) Uncontrolled spaces are not always physically safe. Autonomous parking limits the window of vulnerability when charging the vehicle. Corded chargers may be located out back near the circuit breaker box to reduce costs. There is no guarantee that it is in the safest spot - particularly as numbers grow.
           

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