Thread: The "New" Defender, ...Your Thoughts?

Originally Posted by PAT303

It's very old proven technology,traction motors set up this way have done more work in harsher conditions than we'll ever put them through fitted in a 4wd. Pat

Like Pat says, very old, proven technology.

This is one is a Porsche petrol-electric circa 1900. Those are motors in the wheels, though I doubt this one used dynamic braking.

This is the modern equivalent from Protean Electric.

The specs are:
Peak output power @ 400 Vdc 75 kW 100 HP
Continuous output power @ 400 Vdc 54 kW 72 HP

Peak output torque 1000 Nm 735 lb-ft
Continuous output torque 650 Nm 516 lb-ft
Nominal input voltage range 200-400Vdc 200-400VdcWidth 115 mm 4.5 inDiameter 420 mm 16.5 inTotal motor mass 34 kg 68 lb

Not seeing any need for geared hubs based on these figures.

Protean Electric have an engineering centre in England, U.S. and China.

They say...

"Protean Drive? is designed for a broad array of vehicles including sedans, SUVs, pickup trucks and commercial vans ? any vehicle with an 18- to 24-inch wheel. The system also can be added to existing cars and trucks, utilizing their current internal combustion engine drivetrain. This allows automakers to create hybrid vehicles in less time and with far fewer changes to the vehicle design and components.
Protean's system can increase fuel economy by over 30 percent, depending on the battery size and driving cycle. It is also powerful enough to be the only source for traction on a variety of vehicles. Its ease of integration can simplify the adoption of hybrid and electrified powertrains and save cost."

[ame]https://youtu.be/i1Ko3wgGI-E[/ame]

[ame]https://youtu.be/oA4543CcxJo[/ame]

[ame]https://youtu.be/ZnhmND1KQ_4[/ame]

Don't fob off a Diesel Electric Defender just yet...

Told yez.

Electric Motor design is forging ahead rapidly. I imagine that it yould be both cheap and easy to replace In Hub Motors when ever the latest and greatest becomes available. Also the characteristics of the Motors could be tailored to suit the vehicle and its purpose. The concept also leaves suspension design wide open to innovation.

Don't forget Land Rover already has liquid cooled axial flux motors to fix the heat problem,google the Jaguar X-75,I think thats what it's called. Pat

Yeah I was interested to read that these motors above are liquid cooled. With that sort of power density I guess you'd have to. 1000nm at each wheel isnt to be sneezed at.

Sent from my ZTE T84 using AULRO mobile app

Thats 1000Nm peak at 50rpm,600 continuous going by the graph ,yeh,not to be sneezed at . Pat