Rimac Automobili Explains All Wheel Torque Vectoring (w/video)

2 years ago by Mark Kane 20

Rimac All Wheel Torque Vectoring

Rimac All Wheel Torque Vectoring

Rimac All Wheel Torque Vectoring

Rimac All Wheel Torque Vectoring

Rimac Automobili, a Croatian company that few years ago introduced the Concept_one electric supercar with 1,088 hp, and who also recently announced intentions to double its workforce this year,  presented recently one of its main systems – the Rimac All Wheel Torque Vectoring.

Torque vectoring is electronic control of motors (four in the case of the Rimac), that enables to automatically adjust torque (up to 100 times per second) for each wheel independently, depending on the situation: speed, acceleration, traction, steering angle, and more.

It can not only change the torque up or down, but manage to accelerate one wheel while at the same time slowing the other.

That’s provides ultimate agility and increases safety – pretty useful if you have 800 kW under the foot.

Rimac Concept_One

Rimac Concept_One

More about RAWTV:

Rimac Automobili Concept_One (Formula E Race Director car)

Rimac Automobili Concept_One (Formula E Race Director car)

Rimac All Wheel Torque Vectoring

One of the many features that make the Concept_One unique and define its essence is the Rimac All Wheel Torque Vectoring System (RAWTV). The Rimac All Wheel Torque Vectoring system uses the maximum traction of each tire and gives the driver the possibility to adjust the driving behaviour exactly to his or her preferences thus giving it superior driving characteristics.

This system precisely controls the torque of each motor 100 times per second. By utilising the data from various precise sensors placed throughout the car and advanced control algorithms, it can use the maximum grip of each tire, thus providing superior dynamic characteristics. RAWTV has various modes that give the car multiple characters, depending on the driver’s preferences and abilities. For example – the driver can choose an “oversteer mode” where the system helps skilled drivers to slide through corners. RAWTV not only changes the character of the car under acceleration and braking but also acts as a dynamic stability control system. Compared to the conventional systems where hydraulic brakes are used to stabilise the vehicle, the RAWTV takes advantage of the use of electric motors. Changing the torque more than a 100 times per second on each wheel, RAWTV covers the functionalities of traditional ABS and ESP systems faster and more efficient than ever before while delivering a whole suite of new functionalities and possibilities. Combining high safety levels with superior performance, Rimac All Wheel Torque Vectoring brings a brand new electrifying driving experience.

2015 Tajima Rimac E-Runner Concept_One - practice run

2015 Tajima Rimac E-Runner Concept_One – practice run

With 1088 HP and 1600 Nm of torque the Concept_One accelerates from 0-100 km/h in 2,8 seconds and reaches the limited top speed of 325 km/h. Thanks to the highly sophisticated liquid cooled battery system that can deliver more than 800kW of power, it can reach up to 330 km on a single charge. Rimac All Wheel Torque Vectoring was developed for the Concept_One, but this system was also implemented in the Tajima Rimac e-Runner, a racing car that Rimac Automobili developed for Monster Sport. Nobuhiro Monster Tajima completed the Pikes Peak International Hill Climb race in the Tajima Rimac e-Runner finishing the race in front of all race cars with internal combustion engines. This was the ultimate proof of RAWTV’s efficiency and superior characteristics.

 

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20 responses to "Rimac Automobili Explains All Wheel Torque Vectoring (w/video)"

  1. Bevo says:

    Yeah, but does it have ‘Mountain Mode’ like my Volt? Doubt it.. forget you Rimac..

    1. Perfect Record says:

      It doesn’t have an ICE so why would it have mountain mode? Are you promoting internal combustion engines? Wrong forum for that ?.

      1. Bevo says:

        It was a joke. The obvious fact the Rimac is a pure EV and is a supercar that would destroy my Volt is what I thought would make it clearly tongue-in-cheek. Evidently, I was wrong.

        1. Perfect Record says:

          I was trying to add to your joke (hence the winky face) but I guess it was poorly executed on my part ?. Obviously many electric cars would like to be of the Rimac caliber, but us normal people with Volts and FFEs will just have to settle for what is affordable. And yes I too have a Volt. ?

          1. Bevo says:

            Oops, sorry ‘Perfect Record,’ the winky face didn’t come through on my end, I didn’t pick up on the humor.. guess I need some more coffee! Good to run into other Volt owners, although I sure wish I could pick up a Tesla some day (maybe a lease return a few years down the road?), I have to say that my Volt is the best car I’ve ever owned.

            How has your experience been with your Volt?

            1. Perfect Record says:

              I’m an avid sports mode guy myself. It has a lot more pick up than my FFE. I hate the fact that I still have to put some gas in it from time to time but for us that can’t buy a Tesla it’s the most superior product out there IMHO.

              1. Bevo says:

                Totally agree! My wife pulls her hair out at the lengths i go to avoid running the generator!!

  2. Hector Otero Jimenez says:

    The Rimac Concept One seams to be the first of a new era of hyper-full electric-cars, but they still have to prove that the battery and the motors can handle all this power for more than 10 min. When they do so we will see an electric car that can smash any Ferrari, Bugatti, Lamborghini, Porsche, etc…
    Not bad for a small and young Croatian company.

  3. EVs says:

    What is a mountain mode?

    1. Bevo says:

      Mountain Mode in the Volt is a mode where you can switch from electric to gasoline generator that runs the generator a bit higher than normal generator mode. What it does is over-produces electricity to keep a surplus in the battery for assists during the steeper hill sections where your generator may not be able to power the car by itself. I usually switch into Mountain Mode about 5 miles out from a hill climb in order to start my climbs with a little left in the battery to begin with.

      1. SJC says:

        A guy at GreenCar said the Volt would NEVER need a mountain mode, he is suppose to be an “engineer” so he knows.

        1. Bevo says:

          Then the guy at GreenCar has never driven a Volt over the Sierra Nevada mountains going east on I-80 and forgot to put it in Mountain Mode and ran out of battery at Auburn… and had to drive in the far right hand lane going 55 mph in Reduced Power mode from Colfax to Emigrant Gap… not that I ever did that…

          1. Phr3d says:

            well put – always ask a long-term owner first, lol

        2. ModernMarvelFan says:

          “A guy at GreenCar said the Volt would NEVER need a mountain mode, he is suppose to be an “engineer” so he knows.”

          LOL. That “engineer” obviously never owned a Volt or never lived near a big hill.

          Yes, as Bevo said that Volt would easily get into “power reduced mode” if Mountain mode isn’t used when climbing the Sierra Nevada.

          The Mountain mode is design specifically for mountains like the Sierra Nevada.

          People who said Volt doesn’t need it never took it on a big mountain before.

          1. SJC says:

            Well opinions are like **** everyone has one, but when you are an arrogant poster like that guy, he is ALWAYS right even when he is wrong.

            1. ModernMarvelFan says:

              Next time, just tell him to drive from SF to Lake Tahoe with his Volt and see if his Volt would be able to keep up the hwy speed…

              The Mountain Mode is designed by GM for a reason. Why would GM bother with it if it can handle the terrain without it?

              GreenCar has a lot of people who comment but don’t actually own the car…

  4. Goodbyegascar says:

    I wonder if all-wheel steering would make the Rimac handle perfectly.

    1. RexxSee says:

      Maybe the Tesla Roadster II will ? also with six wheels for insanely ludicrous 0 to 60 from hell!

      Captain Scarlett would be proud! 😉

  5. ModernMarvelFan says:

    Rimac is awesome. 4 motors would make a true 4WD. Far superior solution.

    Great for performance cars and rock crawling SUVs…

    1. Djoni says:

      Absolutely optimal performance for grip and handling of a supercar sure.
      But, 4 motors, inverters, cabling, gear with all the sensors needed isn’t cheap.
      Of course Supercar isn’t built to be cheap.
      For convenience economy and day to day driving?
      Not so much.
      2 motors design as in TeslaSD is plenty and a lot better than any ICE AWD.