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 Yaris Hybrid-R Concept
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| Toyota Yaris Hybrid-R Concept |
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<< Prev Page 2 of 3 Next >>  In designing Yaris Hybrid-R, Toyota has created a supermini concept like no other. Based on a reworked three-door production model, Yaris Hybrid-R harnesses Toyota's race-winning sports hybrid technology in a powertrain that develops more than 400bhp.The concept will appear for the first time at the Frankfurt motor show next month, but ahead of the unveiling, Toyota has released more details about its special engineering qualities. In simple terms, the powertrain features a 1.6-litre petrol Global Race Engine and two powerful electric motors that give the car intelligent electric all-wheel drive. It also makes use of a supercapacitor to harvest and store energy, just like Toyota's TS030 Hybrid Le Mans car. The engine is a turbocharged four-cylinder unit with direct injection, developed by Toyota Motorsport (TMG) according to international sporting regulations. This means it can potentially be used in a number of different racing categories. While the engine drives the front wheels, each rear wheel is powered by a 60bhp electric motor - the same as that used in the standard Yaris Hybrid. In combination, the elements in the hybrid powertrain produce maximum power of up to 414bhp (309kW). The two electric motors work as electric generators when the car is braking, and supplement the petrol engine's performance under acceleration. Just as in the Toyota Racing TS030 Hybrid race car, energy recovered under braking is stored in a supercapacitor. Compared to the standard nickel metal-hydride battery used in Yaris Hybrid, the supercapacitor has a higher power density and a fast power charge/discharge speed. This makes it perfectly suited to the demands of track driving in delivering brief, immediate bursts of power. The level of power depends on the duration of energy delivery required. So, when Yaris Hybrid-R is running in "road" mode, the supercapacitor releases energy for a maximum 10 seconds per charge, and the total power of the two electric motors is reduced to 40bhp. In "track" mode, the motors reach a combined maximum of 119bhp for up to five seconds per charge, reflecting the more frequent braking and acceleration in circuit driving. << Prev Page 2 of 3 Next >> |
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