Tajima Rimac E-Runner Concept One is powered by four independent electric motors, giving the racing car a total power of 1,475 HP1 (1,1 MW). That is more than twice the power Tajima had in his 2014 car when he broke his own Pikes Peak record, stopping the clock at 9:43,90. This "monstrous" car can do much more: it accelearates from 0 to 60mph(100km/h) in just amazing 2,2 seconds and 200 km/h comes in 5,4 seconds from a standstill.
6/22/15 5:00 am chumakdenis 1
Team APEV with Monster Sport, led by the racing legend Nobuhiro “Monster” Tajima, teamed up with Rimac Automobili in order to develop all-new racing vehicle for 2015 Pikes Peak International Hill Climb Race competition.
As a result, we’ve received 1,475HP (1,1 MW) vehicle that shows unbelievable results.
Meet, the Tajima Rimac E-Runner Concept One - "monstrous" car that can easily leave all other behind (just check out its specs below and you’ll understand what I’m talking about).
* All-wheel drive
* Four independent Rimac permanent magnet electric motors
* Rimac All Wheel Torque Vectoring
* Maximum power: 1100 kW
* Maximum torque: 1500 Nm
* Maximum regenerative braking: 400 kW
* 57 kWh Rimac Automobili battery pack
* Four chain driven single reduction
* Rimac transmission systems
* Monster Sport aluminum alloy tubular space frame with carbon-fiber body
* Electrically assisted power steering
* Adjustable shock absorbers
* Ventilated brake discs Ø370 mm front and rear + Rimac regenerative braking system 3
* 40/710 R18 slick tyres / 13” × 18” wheels
* Kerb weight: 1500 kg
* 0-to-60 mph(0-100 km/h) - 2,2 s
* Top speed: 170mph(270 km/h)
Well, don’t be surprised. I was stunned when I saw first time specs as well.
But how did engineers manage to create such powerful vehicle?
As always, the answer lies beneath the hood.
Under the hood
Tajima Rimac E-Runner Concept One is powered by four independent electric motors, giving the car a total power of of 1,475 horsepower (1,1 MW). That is more than twice the power Mr. Tajima had in his 2014 car when he broke his own Pikes Peak record, stopping the clock at 9:43,90.
“We measured 0-100 km/h (0-to-60mph) in 2,2 seconds. 200 km/h (170mph) comes in 5,4 seconds from a standstill. Cornering forces and stopping numbers are also impressive, but let’s not spoil the surprise. We are quite confident that Tajima Rimac E-Runner Concept One will break previous year’s record. He is a great driver with tons of experience. Interesting fact – he raced Pikes Peak his first time a year before I was born. 28 years later, we work alongside to push the limits further. With the support of our best engineers and technicians, our technology, powertrain, battery-system and Torque Vectoring, he will be able to push the boundaries of electric race cars to a whole new level. Working with Mr. Tajima and his team is an amazing experience of which we enjoy every second.” - said Mate Rimac.
Chain drive system
There are no gearboxes or differentials on this car. The power of each independent motor is transferred to each wheel by an innovative chain drive system developed specifically for this project, which saves a lot of weight and space. Embracing the Rimac Automobili technology, the Tajima Rimac E-Runner Concept_One features an adapted racing version of the Rimac All Wheel Torque Vectoring system, first implemented in the Rimac Concept_One.
The Rimac AWTV controls the torque of each motor 100 times a second. The system can vary the torque on each wheel depending on the steering angle, speed, longitudinal and lateral forces, yaw-rates and number of other variables. The ECU runs the collected sensor-data through complex mathematical algorithms which calculate the optimum torque distribution on a millisecond-level. This enables the vehicle to take full advantage of the tires, squeezing the maximum out of their potential and giving the driver the desired vehicle dynamics at any given moment. Mr Tajima will thus have both the 1,1 MW(1,475 HP) of power and maximum grip in each of the Pikes Peak’s 156 corners.
A few words about Pikes Peak Race
The Pikes Peak International Hill Climb race in Colorado has taken place since 1916 and is considered to be one of the most difficult hill climbs in the world.
That’s what Mr. Tajima said after the initial testing in Croatia:
“The Pikes Peak is one of most difficult hill climbs in the world, because it is held on a public road, not a race track. The conditions are constantly changing. We want to develop technology and gather experience from the Pikes Peak race for development of better, safer, and zero emission road cars. This is my aim. Rimac Automobili is a quite young company but their mind and their spirit are fantastic. The level of technology, professionalism and vertical integration that this company has managed to achieve in such a short time amazed me. I am very happy because Rimac Automobili is simply the best partner for Team APEV.”
Well, it seems that this race won’t be easy and it’s 100% true. The Pikes Peak hill climb is really difficult to race and it is 19,9 km(12,4 miles) long and ends up at 4,301 m above sea level.
In a way of example, petrol engines have oxygen starvation problem at that altitude - the power of the engine decreases over 40 percent.
Nevertheless, electric motors don’t use oxygen, so Mr. Tajima will have the full power of all four electric motors available from start until the finish line, but racing this track won’t be a piece of cake anyhow: this track is 19,99 km (12,42 miles) long, has 156 turns climbing 1,440 m (4,720 ft) from the start at Mile7 of the Pikes Peak Highway, to the finish at 4,300 m (14,110 ft).
Seems to be difficult, but I do believe that the team will do well with their brand-new Tajima Rimac E-Runner Concept One vehicle.
Let’s wish team good luck and eagerly await the race to start on Sunday June 28th.
* On your point of view, which team among 130 all over the world is the most prepared for the race?
Who’ll be the winner of 2015 Pikes Peak International Hill Climb Race?
For which team will you be rooting for?
Will you be watching practice sessions on Tuesday, June 23rd?
Leave your comments on that in the comment section below.