Toyota Yaris Hybrid-R Concept: more details and specs released

Article by Christian A., on August 26, 2013

Toyota revealed new details and specs of the Yaris Hybrid-R Concept that will be unveiled in September at the 2013 Frankfurt Motor Show (IAA). What we do know now is that the new concept car is combines the power of a 1.6-liter petrol Global Race Engine with two electric motors, in order to provide an ‘intelligent’ electric four-wheel drive capability.

The 4-cylinder 1.6-liter turbo engine delivers 300 hp to the front wheels, while at the rear, each wheel is individually powered by a 60 hp electric motors. As a result, the total output delivered by the Yaris Hybrid-R Concept is 420 hp. Just like the TS030 Hybrid race car, the two electric motors act as electric generators during braking phase and can supplement the petrol engine during accelerating.

Energy is stored in a super capacitor that has a higher power density and a fast power charge/discharge speed, when comparing it with a standard NiMh hybrid battery. The super capacitor releases the energy that is recovered under braking for a maximum duration of 10 seconds per charge and the total power of the two electric motors is reduced to 40 hp. Still, in track mode the rear electric motors reach a combined power of 120 hp for up to 5 seconds per charge.

What’s more interesting is that a 3rd 60 hp electric motor is located between the engine and the 6-speed sequential transmission and operates as a generator during the deceleration to feed the super capacitor or during acceleration to directly power the rear electric motors.

The rear electric motors can also influence the handling of the Yaris Hybrid-R Concept by altering the distribution of the torque between the left and rear wheels. The system can send more torque to the outside rear wheel for example and allows higher cornering speeds.

A number of the recent models that Toyota released have all been characterized by a particular design language dubbed as the Keen Look and Under Priority. For the Yaris Hybrid-R however, this has been interpreted to be more emotional and aggressive. To emphasize this change, the headlights come in a new design with the front grille now wider.

There are black and blue details on the model that provide a contrast to the white color of the body. The bumper has a detailed design and is integrated with the LED blue daytime running lights and a pair of large air intakes. A benefit of having these intakes is that they help cool the brakes on the front. Further, the lower lip has been shaped so that it can centrally channel the air flow on the underbody. On the flared fenders, there are the TRD 18-inch bespoke wheels that have been fitted with the R18 Michelin Pilot Sport Cup 225/40 tires.

The tread of the tires follows an asymmetrical design which complements the sporty philosophy of this model. These tires are excellent for mixed use, be in on the racing circuits or the road. In addition, Toyota said that the choice of the tires was intentional as it represents the excellent partnership between Michelin and the brand’s very own racing team participating in the World Endurance Championship series. The brake discs are perforated and grooved and these are gripped by six-piston calipers on the front and four-piston calipers for the rear section.

A quick opening fuel cap has been placed on the pillar in the rear which allows for faster refuel when the vehicle is in the pits. On the rear section, the use of specific LED lights allows it to preserve the link with the production version. On the roof, there is an exclusive spoiler that has been mounted. Further, the redesigned bumper now integrates a large diffuser wherein the exhaust pipe is surrounded by a pair of air extractors.

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