A hybrid Corvette Stingray? 'Don't laugh,' GM president says
08-29-2013, 10:18 AM
#1
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A hybrid Corvette Stingray? 'Don't laugh,' GM president says
08-29-2013, 10:39 AM
#2
KERS is awesome tech and makes perfect sense, if it can be a dual-purpose package on the C7. Increased fuel efficiency in Eco/Touring mode and increased HP for short bursts of power in Sport/Track mode. I don't know how much KERS units usually weigh, hopefully that aspect is minimized if they choose to integrate it.
08-29-2013, 12:29 PM
#4
Drifting
KERS is awesome tech and makes perfect sense, if it can be a dual-purpose package on the C7. Increased fuel efficiency in Eco/Touring mode and increased HP for short bursts of power in Sport/Track mode. I don't know how much KERS units usually weigh, hopefully that aspect is minimized if they choose to integrate it.
08-29-2013, 12:52 PM
#5
Yeah, I saw that. Looks like the LaFerrari HY-KERS weighs 60kg or 132lb. I wonder how the GM version would compare in weight and efficiency. Not close, I would imagine, considering this car costs $1,500,000 not $50,000.
Here's an excerpt from http://www.laferrari.com/en/engine/ talking about HY-KERS:
"The electric motor was designed employing High Specific Power Density technology which enabled the engineers to drastically reduce weight and volume in relation to available torque. The result is performance figures that are comparable to those of the F1 car with the same torque density and the same efficiency (94%) or, in other words, very limited power dissipation.Battery size was an essential factor in optimising the HY-KERS’ weight-power ratio with the aim being to maximise performance while reducing fuel consumption. The solution was an extremely complex system consisting of 120 cells assembled into eight 15-cell modules, with a power output that’s the equivalent of 40 traditional batteries but weighing just 60 kg. The high-voltage batteries are actually assembled in-house by the Scuderia racing department. The batteries are charged in two different ways: under braking - even hard braking when the ABS intervenes, such as when driving on a track - and every time the V12 produces more torque than required, such as in cornering. In the latter instance, rather than the being sent to the wheels, the excess torque is converted to energy and stored in the batteries.
The HY-KERS system is governed by the Hybrid Power Unit which controls the power delivery from both the V12 and the electric motor via two inverters and two DC-DC converters. The variable-frequency control makes torque delivery rapid and precise.This technology has enabled Ferrari’s engineers to maximise performance and reduce fuel consumption. C02 emissions have been reduced to 330 g/km without resorting to electric-only drive which was not within the mission of this model. The HY-KERS system is, however, designed so that in future applications a car can be driven using exclusively electric power for a few kilometres and, during development testing, a full-electric version of LaFerrari achieved just 220 g/km of C02 emissions on the combined cycle."
Here's an excerpt from http://www.laferrari.com/en/engine/ talking about HY-KERS:
"The electric motor was designed employing High Specific Power Density technology which enabled the engineers to drastically reduce weight and volume in relation to available torque. The result is performance figures that are comparable to those of the F1 car with the same torque density and the same efficiency (94%) or, in other words, very limited power dissipation.Battery size was an essential factor in optimising the HY-KERS’ weight-power ratio with the aim being to maximise performance while reducing fuel consumption. The solution was an extremely complex system consisting of 120 cells assembled into eight 15-cell modules, with a power output that’s the equivalent of 40 traditional batteries but weighing just 60 kg. The high-voltage batteries are actually assembled in-house by the Scuderia racing department. The batteries are charged in two different ways: under braking - even hard braking when the ABS intervenes, such as when driving on a track - and every time the V12 produces more torque than required, such as in cornering. In the latter instance, rather than the being sent to the wheels, the excess torque is converted to energy and stored in the batteries.
The HY-KERS system is governed by the Hybrid Power Unit which controls the power delivery from both the V12 and the electric motor via two inverters and two DC-DC converters. The variable-frequency control makes torque delivery rapid and precise.This technology has enabled Ferrari’s engineers to maximise performance and reduce fuel consumption. C02 emissions have been reduced to 330 g/km without resorting to electric-only drive which was not within the mission of this model. The HY-KERS system is, however, designed so that in future applications a car can be driven using exclusively electric power for a few kilometres and, during development testing, a full-electric version of LaFerrari achieved just 220 g/km of C02 emissions on the combined cycle."
08-29-2013, 01:04 PM
#6