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Renault Trucks to Introduce Diesel Hybrid Concept Refuse Truck

Hybrys
The Renault Trucks Hybrys.

Renault Trucks will introduce the Hybrys—a parallel diesel hybrid concept refuse collection truck—at the 29th Road Transport Show in Amsterdam in October.

The Renault Hybrys is a 6x2 vehicle with a DXi7, 235 kW (320 hp) diesel engine that develops 1,200 Nm of torque; an Optidriver Plus robotized gearbox; and an electric MDS (Motor Drive System) motor. The batteries are recharged primarily during slow-down phases and braking, or optionally by grid-charging.

The electrical block in the wheelbase includes power batteries, control electronics, power distribution circuits and the cooling system.

Keyless starting powers up the wholly-electric system before the heat engine takes over.  The hybrid system supports start/stop, regenerative braking, and traction assistance.

Depending on usage, the reduction in fuel consumption can be as much as 35% compared to a traditional driveline system. The vehicle has an all-electric range of 2 km. The Hybrys can be used with a Euro5 engine, with biodiesel and can be fitted with a particulate filter.

(A hat-tip to Melvin!)

Comments

Neil

About time!

Neil

About time!

Harvey D

Seems to be a step in the right direction.

Beside a potential 35% fuel economy, what would be the noise, GHG and air pollution reductions?

Future higher capacity batteries and/or ultracaps could increase the electric only range and be a great asset for city dwellers, specially light sleepers.

How will these compare with the planned all electric Beijing units?

Ben

Any idea how the load for compacting trash compares with driving the truck? Do they currently run the diesel engine to perform that task? If the garbage truck can size down the diesel significantly and accelerate with all-electric, it could be really quiet.

Elliot

This is great! Not for me in the US yet, but for lucky Euros. Garbage trucks wake me up all the time here. Now make a silent way to empty dumpsters! I swear, sometimes it sounds like the world is coming to an end at 4 AM.

WannaKnow

Who makes the batteries? Why aren't the battery manufactures named in most if not all these Hybrid stories. If it weren't for the batteries there wouldn't be a story. Name the battery makers.

I'm not seeing any claim this thing is silent. Am I missing anything? What I read is it's a parallel hybrid with 2 km all-electric range, which would mean diesel ICE drive most of the time. Such short e-range suggests these batteries aren't anything cutting edge. Not that it's bad, just not a silent EV.

Rafael Seidl

The duty cycle of garbage trucks favors recuperation efficiency over shifting the load point of the engine. A hydraulic or supercap hybrid coupled with a sharply downsized or phlegmatized diesel main engine might make more sense.

In theory, even a superflywheel could work. This is an old idea based on a composite cylinder or Laval disk spinning at 50,000 RPM or more in a high vacuum. Magnetic bearings are used, a separate electric machine enables energy transfer into and out of the device. The whole thing is hermetically sealed in a blast-proof metal composite shell and mounted in a gimbal to avoid gyroscopic forces on both the magnetic bearings and the vehicle during turns and changes in road grade. The gimball in turn is attached to the vehicle with Kevlar straps to isolate the magnetic bearings from the impact of potholes etc.

Such a design would be based on work done by Rosen Motors in the 1990s. Blast-proof cargo containers for commercial aircraft were developed with GLARE panels at the TU Delft in the Netherlands after the Lockerbie bombing. Even so, bringing "mechanical battery" would be high and the addressable market limited to MDVs and HDVs with severe stop-and-go duty cycles.

John Baldwin

Refuse trucks should runn on bio-methane made from the waste they carry. It happens already in Sweden, in Switzerland etc, its obvious.

gary

Good idea, but for decades Japan has had very quiet, clean garbage trucks that also play happy,cheerful music.


sjc

John,

This may be happening soon in California. Waste Management has plans to have more than 20 more landfill methane installations and they are a large part of the waste hauling industry.

brendan

The WM trucks, and other natural gas refuse trucks, are the quietest of all (running at a much lower compression ratio), use NO diesel, and offer the lowest emissions of any heavy-duty vehicles on the road.
Biomethane is a recent addition to the advantages of natural gas for diesel substitution, and a natural for garbage trucks, of course. it adds carbon balance benefits to the already considerable air emission advantages gas engines have, since methane is such a powerful greenhouse gas.
There are now a few thousand (yes) cng and lng garbage trucks on the road. it is not an experiment any more, although the additional angle of using landfill gas is certainly a new wrinkle.
Nat gas engines are also as suitable for combining with electric or hydraulic power for hybrid drive systems.

carl kessler

this is a cool looking truck, you can run a diesel
moter on methane landfill gas it been around 100 years
the new trucks will not need diesel fuel any more
you can run car on anything like nos,grain corn rice
landfill gas .your recycle trash make gas and gas will
run a moter

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