Capt Slow HalfDork
Nov. 3, 2010 1:47 p.m.

I know its only a concept, but development along these lines is what excites me about the potential of hybrid cars...

automotive engineering article

yes those are gas turbines under the glass...

Strizzo SuperDork
Nov. 3, 2010 1:53 p.m.

now all they need to do is scale down a gasification plant and you can have a clean coal powered car!

Nov. 3, 2010 2:17 p.m.

I read the whole article, but they really lost my interest in this beyond anything but an experiment when they said "hub motors".

Unsprung weight is bad, mm'kay?

Capt Slow HalfDork
Nov. 3, 2010 2:27 p.m.

yea those really ought to be mounted inboard. Still I like the 1180 ft lbs of torque per wheel

Also the ability to vector torque between all four wheels independently is pretty awesome...

Nov. 3, 2010 3:18 p.m.
Capt Slow wrote: yea those really ought to be mounted inboard. Still I like the 1180 ft lbs of torque per wheel Also the ability to vector torque between all four wheels independently is pretty awesome...

Oh certainly :)

How much of that would be lost by moving the motors inboard and just running a CV shaft out to the wheel? Yes, it's more parts, yes it's more weight, but at least then that weight is sprung and on the centerline of the car...

Shaun Reader
Nov. 3, 2010 4:10 p.m.

The Engineers who built this are doubtlessly aware of the issues regarding unsprung vs sprung weight. The coupled dependencies (foremost packaging considerations) landed them with this compromise. With the parts saved by not having a reciprocation internal combustion engine well into the thousands, And this being a bleeding edge product for the stinking rich, I do not think it had anything at all to do with cost or parts count.

0-100 mph in 5.5 seconds is pretty good. A remap and some sticky tires might get you to a sub 1 sec 0-60 and break your innards out of your outards. exiting.

Nov. 3, 2010 5:09 p.m.

Yes, it hauls ass in a straight line, I won't argue that. But there's zero data as to how it handles.

Nov. 4, 2010 6:52 a.m.

I actually think hub motors will be the big thing in the future. Using a 16"x3" diameter hub motor and caliper attached where the current brake package is, a large diameter replaceable conventional wheel with a rotor bolted to the outer ring of the motor. The rotating mass would be down to (1) wheel (2) tire (3) rotor and (4) excited ring of the motor which will weigh less than the conventional setup. Battery packs can be charged by a small diesel generator. It would give the manufacturer the option of adapting all vehicles in to four wheel drive with a controller/battery/wiring upgrade.

FlightService Reader
Nov. 4, 2010 6:59 a.m.
Dwayne Elizondo Mountain Dew Herbert Camacho wrote: I actually think hub motors will be the big thing in the future. Using a 16"x3" diameter hub motor and caliper attached where the current brake package is, a large diameter replaceable conventional wheel with a rotor bolted to the outer ring of the motor. The rotating mass would be down to (1) wheel (2) tire (3) rotor and (4) excited ring of the motor which will weigh less than the conventional setup. Battery packs can be charged by a small diesel generator. It would give the manufacturer the option of adapting all vehicles in to four wheel drive with a controller/battery/wiring upgrade.

Yup, I agree, don't know why they don't already do that.

similar system to what is used on a locomotive.

Worked for years.

You'll need to log in to post.

Also on Grassroots Motorsports

From the GRM Vault: The Art of Understatement

1 day ago in Articles

The Harvey brothers dominated autocross in an obsolete Datsun a couple decades ago.

2017 Volkswagen Golf TSI SE

1 day ago in New Car Reviews

The quintessential European hatchback continues to pour out of Volkswagen's plants. Our test car featured four doors, a turbocharged 4-cylinder ...

Join the Grassroots Motorsports Dyno Day

2 days ago in News

Join us for a dyno day in Sterling, Virginia.

We're Giving Away a $500 Race Ramps Certificate

2 days ago in News

Joining the drawing is totally free.

25 Project Path

3 days ago in Articles

A walk through 25 of our favorite project cars from the past.

Our Turbo Miata Goes Boom

3 days ago in Project Cars

Engine swap and suspension revamp before our race in two weeks? Challenge accepted.

The Ultimate Weekend Getaway for Your Car Club

4 days ago in News

Save a corral space just for your club at the Mitty.

Reader's Ride of the Week: V8 Jag

4 days ago in News

It’s a long-wheelbase 1974 Jaguar XJ6 fitted with a 350-cubic-inch Chevy V8.

Honing Cylinders

4 days ago in Project Cars

We hone our LS1's cylinders

Break Maiden

1 week ago in Articles

Creating a turbocharged road racing champion from a vintage Ford Mustang.

Meet Us at Sebring

1 week ago in News

We'll be at the Mobil 1 Twelve Hours of Sebring. Will you?

2017 Honda Accord Coupe Touring

1 week ago in New Car Reviews

Honda has been pumping out Accords for over 40 years now. Obviously they have a recipe that just plain works. ...

OUR SPONSORS

Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More
mDulbxAUclcXuVuilLJftWX1N3bylial