Aug-13-2019 05:48 PM
Aug-14-2019 03:52 PM
JRscooby wrote:Some use a reverse pantograph that would come down at one or more of the normal stops on the bus route.
With the big vehicles and the big power transfers required I could see parking precise enough for some buss bars, and a sensor to turn on the power when hooked up.
Aug-14-2019 03:27 PM
Aug-14-2019 09:59 AM
Aug-14-2019 08:39 AM
DrewE wrote:valhalla360 wrote:
The school bus option is interesting. That would be a good option for electric drivetrain.
Even in rural areas, most bus routes are capped at around an hour, so even a 60 mile range gives you sufficient capacity. Then the bus goes back to a yard where it can be plugged in to top up before the next run. If you are worried about longer range field trips, keep 5-10% of the fleet as diesel to cover that need.
The other big advantage for school busses (and, for that matter, city transit busses) is that there is a lot of starting and stopping, and regenerative braking is pretty easy to implement on an electric vehicle, so you can gain a good bit of additional efficiency that way--and lower wear on the mechanical brakes at the same time. An RV usually is driven in exactly the opposite sort of conditions, with longish highway travel segments and stop-and-go driving avoided.way2roll wrote:
I see wireless charging coming into the mix. A pad you simply park over and it charges your car/RV. Same principal as the charging pads for phones and devices now. Saves on space and aesthetically would look better. Fast forward to charging pads embedded in highways - charge while you travel.
Wireless charging tends to be comparatively inefficient (at least when compared with a wire connection), which is not too much of a concern for the few watts a phone or razor or toothbrush needs but starts to be more so for a vehicle that needs a few orders of magnitude more power. Also, having a high-power inductive coil in the floor is not always a great idea from a safety point of view; it could turn into an inductive cooktop if you happen to drop a wrongly-shaped wrench on it, and there would be sizable magnetic fields to wreck havoc with stuff.
Maybe a reasonable alternative would be the overhead roof contact and conductive floor like they use for bumper cars.
Aug-14-2019 08:23 AM
valhalla360 wrote:
The school bus option is interesting. That would be a good option for electric drivetrain.
Even in rural areas, most bus routes are capped at around an hour, so even a 60 mile range gives you sufficient capacity. Then the bus goes back to a yard where it can be plugged in to top up before the next run. If you are worried about longer range field trips, keep 5-10% of the fleet as diesel to cover that need.
way2roll wrote:
I see wireless charging coming into the mix. A pad you simply park over and it charges your car/RV. Same principal as the charging pads for phones and devices now. Saves on space and aesthetically would look better. Fast forward to charging pads embedded in highways - charge while you travel.
Aug-14-2019 07:31 AM
way2roll wrote:Reisender wrote:way2roll wrote:.
The requirements for a bus and an RV are vastly different. While this may work to transport people intra city travel, outfitting it with stove, water heater, outlets, TV's, lights, etc etc for an RV would change the requirements so significantly that probably makes "converting" the way it is too expensive.
I do like the progression on this though. We may very well see in a few years, viable electric mh's.
Agreed. I think it will start with busses like this and for the B class motorhomes it will start with vehicles like the Mercedes E vans. Charging infrastructure will need to adapt as well. Pull thru spots etc.
I noticed some of the latest DCFC chargers in our area are parallel parking affairs. That would work for a 22 foot E Van type Motorhome.
Should be an interesting decade.
I see wireless charging coming into the mix. A pad you simply park over and it charges your car/RV. Same principal as the charging pads for phones and devices now. Saves on space and aesthetically would look better. Fast forward to charging pads embedded in highways - charge while you travel.
Aug-14-2019 07:21 AM
Reisender wrote:way2roll wrote:.
The requirements for a bus and an RV are vastly different. While this may work to transport people intra city travel, outfitting it with stove, water heater, outlets, TV's, lights, etc etc for an RV would change the requirements so significantly that probably makes "converting" the way it is too expensive.
I do like the progression on this though. We may very well see in a few years, viable electric mh's.
Agreed. I think it will start with busses like this and for the B class motorhomes it will start with vehicles like the Mercedes E vans. Charging infrastructure will need to adapt as well. Pull thru spots etc.
I noticed some of the latest DCFC chargers in our area are parallel parking affairs. That would work for a 22 foot E Van type Motorhome.
Should be an interesting decade.
Aug-14-2019 06:23 AM
way2roll wrote:.
The requirements for a bus and an RV are vastly different. While this may work to transport people intra city travel, outfitting it with stove, water heater, outlets, TV's, lights, etc etc for an RV would change the requirements so significantly that probably makes "converting" the way it is too expensive.
I do like the progression on this though. We may very well see in a few years, viable electric mh's.
Aug-14-2019 06:16 AM
Aug-14-2019 04:20 AM
Aug-14-2019 03:38 AM
Aug-13-2019 11:51 PM
Aug-13-2019 07:19 PM