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Volvo invests in wireless charging

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Old Jan 16th, 2019, 14:06   #1
Williemaykit
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Default Volvo invests in wireless charging

https://www.cnbc.com/2019/01/16/volv...ing-firm-.html

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Volvo Group Venture Capital, a subsidiary of the Volvo Group, has invested in a company that specializes in the "high power wireless charging of electric vehicles."

The wireless charging business, called Momentum Dynamics, is based in Pennsylvania. It is developing and commercializing "high power inductive charging for the automotive and transportation industries."
Here's to hoping for a future XC90 with wireless charging

Last edited by Williemaykit; Jan 16th, 2019 at 14:08.
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Old Jan 17th, 2019, 11:46   #2
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For sure all future models will have wireless charging.
It's a nice feature but for me, value added would be real charging by using the brakes. I’ve seen demos from the new Audi SUV that charges batteries up to 100 km only with regenerative braking.
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Old May 20th, 2019, 11:53   #3
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That´s basically what Volvo is doing with the B-Models this year. OK there will be no stand alone electric drive, but the energy will be recuperated and put back into to acceleration.
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Old May 20th, 2019, 13:02   #4
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For sure all future models will have wireless charging.
It's a nice feature but for me, value added would be real charging by using the brakes. I’ve seen demos from the new Audi SUV that charges batteries up to 100 km only with regenerative braking.
That has been the case with all hydrids for many years i would think .. certainly the volvos do this and when you take your foot off the throttle going down hill ...
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Old May 20th, 2019, 13:56   #5
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That has been the case with all hydrids for many years i would think .. certainly the volvos do this and when you take your foot off the throttle going down hill ...
yeah this is one of Robert Llewellyn real pet hates at the moment how everyone thinks that this "Regenerative breaking" is something new when in fact the original Prius did it but didn't make a massive fan fair about it.
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Old May 20th, 2019, 16:35   #6
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everyone thinks that this "Regenerative breaking" is something new .
Regenerative destruction of the car? That would be new. Sounds like active recycling.

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There is a big difference between breaking and braking.
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Old May 20th, 2019, 20:21   #7
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That has been the case with all hydrids for many years i would think .. certainly the volvos do this and when you take your foot off the throttle going down hill ...
Yes but it doesnt give that much power back to the battery.
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Old May 20th, 2019, 20:22   #8
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Originally Posted by SwissXC90 View Post
Regenerative destruction of the car? That would be new. Sounds like active recycling.

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There is a big difference between breaking and braking.
Make sure you don't break your brakes....!
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Old May 20th, 2019, 22:02   #9
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Originally Posted by SwissXC90 View Post
Regenerative destruction of the car? That would be new. Sounds like active recycling.

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There is a big difference between breaking and braking.
lol - Nothing like fingers and brain doing different things
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Old May 23rd, 2019, 01:49   #10
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Yes but it doesnt give that much power back to the battery.
Indeed, I just did a quick calculation. Take a 2.6 tonne V90 T8 travelling at 100km/h braking to 0 in 8 seconds. The kinetic energy the car has is near enough 1Meajoule or 0.27kWh. If we were to recover all of this energy, in 8 seconds, the battery would need to absorb all that power at 1250kW. For reference, the fastest quick chargers today support up to 300kw but no car currently can charge at this speed. The T8 can only support 3.7kW charging by cable. My guess is that under regenerative braking it can absorb more but still nowhere near the 1250kW needed.

This is where ultracapacitors come in, they can take very high current but don't have the same energy density as batteries. They're the perfect candidate for getting the most out of regenerative braking. I wonder if the B cars will use supercapacitors? Last year Volvo signed a deal with Maxwell for ultracapacitors.
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