ev truck overhead lines
Discussion
Einion Yrth said:
This is the sort of nonsense that Gerry and Sylvia Anderson would have come up with; 'course with puppets, it would've worked.
They did - sort of. The Monobrake from The Perils of Penelope
Green credentials slightly marred by Brains specifying that it be powered by an afterburning turbojet.
Road Haulage Association said:
These alternative HGVs don't yet exist. We don't know when they will and it's not clear what any transition will look like. So this is a blue skies aspiration ahead of real-life reality.
IMHO this will never happen. It would be much easier to build a motorway-based hydrogen filling station network, and that's saying something.I think fuel cells are a much more likely solution for this use case.
ts and giggles will throw something metallic across the cables for a firework display.It's nothing new - trials started in Germany 2 years ago.
https://www.volkswagenag.com/en/news/stories/2019/...
They wouldn't need to be all along the motorways either - put them in long open stretches and the trucks will be able to charge up on the move.
There are similar trials going on with battery trains - batteries with about 100 mile range then charging sections where it's easy to install them.
The hydrogen train trials have shown they aren't suitable for replacing diesels or electric trains on longer high speed runs.
https://www.volkswagenag.com/en/news/stories/2019/...
They wouldn't need to be all along the motorways either - put them in long open stretches and the trucks will be able to charge up on the move.
There are similar trials going on with battery trains - batteries with about 100 mile range then charging sections where it's easy to install them.
The hydrogen train trials have shown they aren't suitable for replacing diesels or electric trains on longer high speed runs.
There's a few examples of this on the continent that have been under development for a while now. One such example being the Siemens eHighway.
eHighway – Electrification of road freight transport
So there's precedent, and it's obviously a well developed tech from train systems.
However the key development over previous systems is that the trucks are now Battery Electric, so can use the catenary for direct propulsion and/or to recharge the onboard battery, without having to stop. And as the catenary can operate at voltages far higher than could be safely handled with plugs and cables across the ground, much much higher charging kW are also possible.
Additionally, as the trucks are Battery powered, they don't need to have a continuous catenary to make them work. So breaks in it for bridges, and other difficult to work around obstructions are no problem. They only need to electrify the easy sections as the truck can operate under it's own power between them. So this cuts the infrastructure cost down massively. I could see this also potentially solving for the (present) long range BEV travel conundrum. Slot into a charging lane on the motorway, hit the cruise/self drive, raise the pantograph and high speed charge the battery, all without having to slow down. Neat.
What's being done already with trains in Germany is pointing to where low carbon road haulage tech is going. Siemens already have commercially available Battery Electric, and Fuel Cell trains, both of which are compelling propositions. Particularly the battery versions as they don't need any additional infrastructure. They also open the door to having an effectively 100% electrified rail network for a fraction of what that would otherwise cost.
Hybrid drive systems for commuter and regional trains
eHighway – Electrification of road freight transport
So there's precedent, and it's obviously a well developed tech from train systems.
However the key development over previous systems is that the trucks are now Battery Electric, so can use the catenary for direct propulsion and/or to recharge the onboard battery, without having to stop. And as the catenary can operate at voltages far higher than could be safely handled with plugs and cables across the ground, much much higher charging kW are also possible.
Additionally, as the trucks are Battery powered, they don't need to have a continuous catenary to make them work. So breaks in it for bridges, and other difficult to work around obstructions are no problem. They only need to electrify the easy sections as the truck can operate under it's own power between them. So this cuts the infrastructure cost down massively. I could see this also potentially solving for the (present) long range BEV travel conundrum. Slot into a charging lane on the motorway, hit the cruise/self drive, raise the pantograph and high speed charge the battery, all without having to slow down. Neat.
What's being done already with trains in Germany is pointing to where low carbon road haulage tech is going. Siemens already have commercially available Battery Electric, and Fuel Cell trains, both of which are compelling propositions. Particularly the battery versions as they don't need any additional infrastructure. They also open the door to having an effectively 100% electrified rail network for a fraction of what that would otherwise cost.
Hybrid drive systems for commuter and regional trains
Edited by dvs_dave on Wednesday 14th July 22:03
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