Automotive

Diesel-electric revival tech builds more capable HD semi trucks

Diesel-electric revival tech builds more capable HD semi trucks
Canada's Edison Motors is working powerful semis with mechanical and diesel-electric powertrains for heavy duty jobs
Canada's Edison Motors is working powerful semis with mechanical and diesel-electric powertrains for heavy duty jobs
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Canada's Edison Motors is working powerful semis with mechanical and diesel-electric powertrains for heavy duty jobs
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Canada's Edison Motors is working powerful semis with mechanical and diesel-electric powertrains for heavy duty jobs
A diesel-electric offers instant torque, quick fueling, and greater efficiency than diesel powertrains
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A diesel-electric offers instant torque, quick fueling, and greater efficiency than regular diesel powertrains
Being a Texas Bed truck, The tri-drive BDE features a multi-functional flatbed for pulling trailers and hauling heavy equipment on its deck
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Being a Texas Bed truck, the tri-drive BDE features a multi-functional flatbed for pulling trailers and hauling heavy equipment on its deck
Beyond building semis, Edison will soon offer diesel-electric retrofitting services for heavy-duty pickups
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Beyond building semis, Edison will soon offer diesel-electric retrofitting services for heavy-duty pickups
Edison says its vehicles are built with off-the-shelf parts and easily repairable components without software locking things down
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Edison says its vehicles are built with off-the-shelf parts and easily repairable components without software locking things down
The BDE features a rugged build for braving unforgiving terrain, and the front is designed for easy maintenance and plenty of heat dissipation
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The BDE features a rugged build for braving unforgiving terrain, and the front is designed for easy maintenance and plenty of heat dissipation
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Over the last few years, Donald, Canada-based Edison Motors has been working on developing its own line of diesel-electric semi trucks. It's not a sophisticated auto industry player, but a tiny startup with people who know and love trucking.

Founded by former truck driver Chace Barber, the company is focusing on diesel-electric tech to power real working vehicles like log loaders, crane trucks, and drilling rigs. These venture way out of range from charging stations, and can't afford to give up payload capacity to giant batteries (a Tesla semi is estimated to carry 6 tons' worth of batteries).

So, this isn't exactly the same as an electric range extender system where a diesel generator recharges a battery. Instead, a powerful diesel engine runs at a constant RPM and continually tops up a modest-sized battery, which powers electric axles that spin the wheels.

A diesel-electric offers instant torque, quick fueling, and greater efficiency than diesel powertrains
A diesel-electric offers instant torque, quick fueling, and greater efficiency than regular diesel powertrains

As a result, you have all the range and fuel top-up time of a diesel vehicle, as well as instant torque on demand, and a simple direct-drive setup instead of a complex 18-speed manual transmission. Diesel-electric systems have actually been around since the 1960s, and Edison has had the good sense to revive them for heavy duty trucking.

Rather than conjuring up flashy futuristic machines, this startup wants to give truckers the keys to practical vehicles that are easy to maintain, simple to repair on the road, and capable of lasting for years.

As such, most of its parts are off-the-shelf, panels and interior components are bolted on, and there's no proprietary software locking owner-operators out of diagnosing and fixing their vehicles themselves.

Edison says its vehicles are built with off-the-shelf parts and easily repairable components without software locking things down
Edison says its vehicles are built with off-the-shelf parts and easily repairable components without software locking things down

Edison started off its operations by retrofitting a 1962 Kenworth truck with its own electric axles, and this seems to have inspired its design thinking for its own creations. The company presently builds specific truck configurations for its customers involved in logging, heavy haul, and vocational work. It's currently building a winch tractor, a quad-wagon logger, and a snow plow; pricing is said to be about 25% more than a comparable diesel truck.

The big idea is to pair a 9-liter Scania diesel engine with CDTL 5000 electric axles for trucks in a range of power configurations, going all the way up to 2,400 hp and 150,000 lb.ft (203,373 Nm) of torque on the tri-drive option.

Okay, enough backstory. Edison's CEO Chace Barber recently recorded a tour around the BDE, a mechanical tri-drive Texas Bed built for Royal Oilfield out in Canada. This isn't a diesel-electric, but a regular diesel vehicle with a manual transmission the brand is also offering alongside its hybrid system. But you can still see Edison's design thinking and vision for simple trucks that can get the job done and are easy to live with.

Introducing The Edison BDE: A Walkthrough of Big D!

This is an oil-field truck that's meant to conquer rocky terrain and not get stuck in deep mud. It features an imposing front end with a full skid plate and plenty of ground clearance for the bumper to cover broken paths and an oversized slot around the bumper to attach a winch and pull it out of muddy spots. You'll also notice wide aluminum fenders protecting replaceable headlights with heated lenses to melt away snow.

Being a Texas Bed truck, The tri-drive BDE features a multi-functional flatbed for pulling trailers and hauling heavy equipment on its deck
Being a Texas Bed truck, the tri-drive BDE features a multi-functional flatbed for pulling trailers and hauling heavy equipment on its deck

There are plenty more details to discover, including the classic large external Donaldson air breathers, room beneath the cab to work on it, dual 8-inch exhaust pipes, a 40-ton winch, and reliable AD 130 air ride suspension. Inside, analog gauges dot the bolted-on dashboard, while a 46-inch sleeper offers plenty of room behind a driver's seat that can slide back for extra legroom.

It's not fancy by any means, but this utilitarian approach is what allowed vocational workers across North America to live with their trucks for decades.

Beyond building semis, Edison will soon offer diesel-electric retrofitting services for heavy-duty pickups
Beyond building semis, Edison will soon offer diesel-electric retrofitting services for heavy-duty pickups

Edison is currently inviting retail investors to fund its operations. Meanwhile, it's working to crank out those aforementioned custom vehicles, setting up a service to retrofit pickup trucks with diesel-electric powertrains, and is gearing up to build the first few of its semi truck production models in 2027.

Source: Edison Motors

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4 comments
4 comments
Chase
I've been following these guys for years, especially their work on smaller trucks with DeBoss Garage. Awesome stuff. They are also (allegedly) in initial talks with the Canadian military to develop series hybrid military transports. Sick.
"So, this isn't exactly the same as an electric range extender system where a diesel generator recharges a battery. Instead, a powerful diesel engine runs at a constant RPM and continually tops up a modest-sized battery, which powers electric axles that spin the wheels." Is it just me or do those two things sound virtually identical? I'm not sure I understand the distinction.
I'm not sure how I feel about this truck though. I do like how they are building the new truck to be worked on, with non-proprietary components that should be easily replaced (wish car manufacturers would do this), but I'm not sure I'm on board with them going back to regular ICE-driven trucks. Seems like a step in the wrong direction but I'm sure, just like the company's design ethos, there's a very pragmatic reason behind it.
Username
So what are is the fuel consumption for the diesel electric compared to the straight diesel?
SAH
An Edison Hybrid will get worse mpg when doing high speed freeway driving. The Edison Hybrid will probably get 30?% better mpg when doing start/stop city drayage like a suburban garbage truck, or a city delivery truck. The Edison Hybrid may never use any city power, or fuel, when doing off road mountain logging or mining due to energy stored in high mountain timber or rocks that have high potential stored energy.
Steve
Chase wrote:
"Is it just me or do those two things sound virtually identical? I'm not sure I understand the distinction."
There's a significant difference. Here you aren't getting any range to speak of from the stored energy in battery charge. You are just getting diesel electric power with the battery as intermediary component to deliver and stabilize it. Since the battery is continuously charged and not relied on to produce any sugnifucant range from stored energy its a lot smaller, MUCH lighter, and all things being equal, MUCH cheaper to ultimately replace. Important for something that could wrack up high six or low 7 digit milage.