Mitsubishi Lancer Evo 3 Shows Up With 3,688 Pound-Feet of Torque Courtesy of 4 In-Wheel Electric Motors

4 years ago by Eric Loveday 9

1,700 Pound-Feet of Torque?  Well...Sort Of

3,688 Pound-Feet of Torque? Well…Sort Of

Yes, there’s an * in here and we’ll get to that soon, but first here’s our intro to this torquey machine.

IN-Wheel Motor Setup

In-Wheel Motor Setup

Australia-based Evans Electric recently unveiled its “All Wheel Drive In-Wheel Motor” Lancer Evo 3 at Sydney Olympic Park.

Evans Electric describes this particular Evo 3 in this way:

“The 4 door sedan with World Rally Championship pedigree features a direct drive, disc type electric motor in each of it’s 19″ wheels. Each Axial Flux 3 phase AC Induction wheel motor has a nominal output of 75 kw and 625 Nm of torque with a peak output of 150 kw and 1,250 Nm giving the vehicle a total peak output of 600 kw (800 hp) and 5,000 Nm.*” (note the asterisk)

“Direct drive wheel motors eliminate mechanical transmission losses allowing up to 85% of a vehicle’s kinetic energy to be recoverable during braking. Maximizing brake regeneration lowers a vehicles over-all energy consumption potentially leading to more range per kWh of battery capacity or the use of a smaller battery pack for similar range. As the battery is the single most expensive component in an EV this could lead to lower cost electric cars.”

Of particular interest though is this statement:

“The Evans Electric in-wheel motors enable non-contact electromagnetic braking, replacing hydraulic friction brake systems which are 99% redundant in current generation electric/hybrid vehicles. Using only the wheel motors, the car can brake at greater than 1G.”

Evans Electric tells us that it holds tons of patents for all this stuff:

“Vehicle drive system using wheel motors for propulsion and braking, the most impressive feature of which is that safety and vehicle dynamics features such as ABS, stability control, traction control, brake steer, active brake bias, torque vectoring, intelligent cruise control, emergency brake assist and collision avoidance all become customizable and upgradable software functions.”

Okay, fine.  We don’t care about patent holders so much as we do that *.  So, here’s that explanation:

“*While the torque figure could at first glance appear fantastic, standard automotive industry practice only quotes torque at the flywheel not at the wheels. As an example the Tesla Model S Performance has a quoted peak motor torque of 600 Nm. With a single speed reduction gear ratio of 9.73:1 that equates to a total of 5,838 Nm (minus gearing losses) at the wheels. The Evans Electric motors are direct drive, so the rotor turns at the same speed as the wheel. Instead of mechanical reduction gearing, they are electrically geared using an 8 pole stator winding configuration.”

Using those calculations, the Tesla Model S Performance would boast 4,306 pound-feet of torque!!!

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9 responses to "Mitsubishi Lancer Evo 3 Shows Up With 3,688 Pound-Feet of Torque Courtesy of 4 In-Wheel Electric Motors"

  1. Alaa says:

    He uses permanant magnets.

  2. jzj says:

    1. Has this car been driven, and do we have any footage and figures from the drive?
    2. It must have hella-good suspension to deal with all that unsprung weight.
    3. It must have quite a battery pack to deal with the inflow of electricity from 1G of regenerative braking.

  3. scott moore says:

    I’ve always wondered if it were possible to integrate the motor(s) into the wheel and eliminate all of the transmission. Electronics makes a pretty good substitute for mechanical transmissions. Now you even have the ability to set up the poles of the motor as waves in a conductive surface. Some really amazing stuff coming down the pike.

  4. Aaron says:

    I wonder how non-friction brakes will work when parking on a hill?

    1. Open-Mind says:

      “Wheel chucks not included. Each sold separately.”

      😉

  5. Dan Frederiksen says:

    I like the video where we see it drive..

  6. Bill Howland says:

    I’d imagine someone could come out with a nice small horsepower 2 wheel drive version , and since the motors would be reduced size, this would reduce the problem of more unsprung weight. Removing the
    mechanical brakes is a start as long as the car can decelerate quickly enough. 2 wheels would have to retain mechanical brakes for a safety backup.

    Otherwise, a cheap 2 motor setup should allow for a very cheap ev.

  7. Malcolm Scott says:

    This company popped up in 2010 with an announcement, and it has taken 3 years to get to a point were we can see only photos of a car with in-wheel motors installed. It’s interesting to note that performance claims relate to an acceleration target (where in-wheel motors normally excel), and this particular car was show cased at a car enthusiasts exhibition.

    This seems to be a special purpose application for a particular market. There does not seem to be an investment and commercialisation strategy of the type we would normally expect for something that has a great value proposition.

    This one might be more compelling as the design is applicable to many markets, and is being evaluated/tested in an EV Engineering Commodore
    http://axiflux.com/
    http://www.autoweek.com/article/20130315/GREEN/130319864

  8. Priusmaniac says:

    What is interesting is more power that translates into less consumption, exactly the opposite then a standard petrol car.
    Also, more power giving less consumption, less battery requirement and thus lower overall cost.