Tampilkan postingan dengan label electric. Tampilkan semua postingan
Tampilkan postingan dengan label electric. Tampilkan semua postingan

Selasa, 05 Oktober 2010

Exagon Furtive-eGT electric sports car with 340 hp

Exagon Furtive-eGT photos
So far, developed the company based in Magny-Cours Exagon electric race car. Now we'll do a road car with emissions-free drive. The latter provides a torque of 480 Newton meters between zero and 5,000 rpm. The sprint from zero to 100 km / h, the car created in 3.6 seconds, the 200 mark is reached after 14.6 seconds. A top speed of 287 km / h are given - on the race track, normally will be controlled at 250 mph.

The 4.50 meters long 2 +2 seater coupe has short overhangs, the design is cool and straightforward. A special feature is the double-bubble roof. To drive two provide very compact electric motors from Siemens. The liquid-cooled units provide 125 kilowatts each. Together, this results in an output of 340 hp, which is 5000-10000 rpm. Whether the motors driving one axis, so that a four-wheel drive results, is indicated. The electric machines are combined with a three-speed transmission that can be operated via shift paddles on the steering wheel. As an energy store lithium-ion batteries used by the manufacturer juice, which hold a capacity of 50 kilowatt hours at a voltage of 700 volts. In three and a half hours, they can be recharged to 20 percent charged to 80 percent. The batteries survive ten years or 3,000 charge cycles, so Exagon.
Exagon Furtive-eGT photos
Exagon Furtive-eGT photos
Exagon Furtive-eGT photos
Exagon Furtive-eGT photos interior

Minggu, 19 Juli 2009

2010 Audi e-Tron Concept a compact sports car with all-electric drive

Audi is showing an uncompromising purist compact sports car with all-electric drive at the 2010 NAIAS. The Detroit Audi e-tron Concept is 3.93 meter (154.72 in) long and 1.78 meter (70.08 in) wide but just 1.22 meter (48.03 in) tall two-seater; just a few months after the debut of the Audi e-tron Concept at the 2009 Frankfurt Motor Show, this is now the second electric concept vehicle from the brand with the four rings. Coupled with the Detroit Audi e-tron Concept's low gross weight of around only 1,350 kilograms (2976.24 lb), high-torque power units driving the rear wheels guarantee commensurate road performance.

2010 Audi e-tron Concept Car
Two electric motors in sync with a total capacity of 150 kW (204 hp) Audi give Detroit Audi e-tron, use the concept of the performance of a real sports car. Concept car can accelerate from 0 to 100 km / h (0 to 62.14 mph) in 5.9 seconds, if necessary, and goes from 60 to 120 km / h (37.28 to 74.56 mph) in 5.1 seconds.

2010 Audi e-tron Concept Car
And a top speed limited to 200 kmh (124.27 mph), the amount of energy needed to increase the electric motors are disproportionately in speed. Fraction in the combined cycle NEP nearly 250 kilometers (155.34 miles). The energy storage unit in charge of household current (230 volts and 16 amps) through the cable and components.

2010 Audi e-tron Concept Car
Socket behind a curtain in the back of the car. Download time when the battery is approximately 11 hours, but the heavy current (400 volts and 32 amps) of these cuts to about two hours only.
The Detroit Audi e-tron Concept in its further developed version goes one decisive step further into the future; an electro-mechanical brake system means the potential of electric motors for energy recovery can now be exploited. A hydraulic fixed-caliper brake is mounted on the front axle, with two novel, electrically actuated floating-caliper brakes mounted on the rear axle. These floating calipers are actuated not by any mechanical or hydraulic transfer elements, but rather by wire ("brake by wire"). In addition, this eliminates frictional losses due to residual slip when the brakes are not being applied.

2010 Audi e-tron Concept Car
The drive system's power is transferred to the road by the rear wheels, reflecting the Audi e-tron's weight distribution of 40:60.
Both the individual motors, which are installed behind the wheels close to the vehicle's center line as wheel drives, also enable the Detroit Audi e-tron Concept's lateral dynamics to be intelligently controlled. This also boosts traction. Similar to what the sport differential does in conventional Audi vehicles, torque vectoring - the targeted acceleration of individual wheels - makes the newly developed electric drive of the Detroit Audi e-tron Concept even more dynamic while simultaneously enhancing driving safety.
Understeer and oversteer can be corrected by not only targeted activation of the brakes, but also by precise increases in power lasting just a few milliseconds. The concept car remains extremely neutral even under great lateral acceleration and hustles through corners as if on the proverbial rails.

2010 Audi e-tron Concept Car
The chassis has triangular double wishbones made of forged aluminum components at the front and rear axles - a geometry that has proven in motor sports to be the optimal prerequisite for high agility, uncompromising precision and precisely defined self-steering behavior. A taut setup was chosen for the springs and shock absorbers, but it is still very comfortable.
Audi e-tron concept car moves on wheels 19-inch 35 - spoke design. 235/35 front tires and 255/35 rear tires provide excellent grip. Other special feature of tires: Audi designers created a special file for the Detroit Audi e-tron, use the concept.