2011 370z, 400 hp..... hybrid?

Florida_GATOR

Who cares about MPG anyway? we are driving sports cars...not prius sedans. I drove a tank called a H1 and i got 5mpg on diesel but those forum members didint complain. I think the MPG the 370 has right now is pretty damn good. Im done venting

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BanningZ

Umm because $6.00/gallon is coming and more HP for less $ is a win in my book.

Why the hate on efficiency and power?

If you can have both, embrace it. I will.

Too bad the FT-HS never made or the Alessandro Volta.

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MB 06' Nismo VQ40DE

Florida_GATOR

There's no hate on either, im just saying trying to make somethings, not everything, green could damage its image. Imagine a badass sports car like the Z having a super quiet electric motor and reduced power to save on emissions...just seems like the two wouldn't work together.

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MK44 Creed- " Ive got a bullet here with your name on it, and im gonna keep firing till i find out which one it is "

Most badass job ever.

wstar

I'm still not a fan of hybrid technology. It's an inefficient, wasteful design compared to an all-electric with a generator for extended range.

The correct design for an all-electric is: 4 electric motors, one in each wheel as an integral part of the hub/wheel, a sizable battery system that's capable, and a very advanced ECU to control the 4 motors and the charging system. There's no gearing and no drivetrain losses in such a setup. You get instant torque from 0rpm at all wheels. Top speed is limited by max engine RPM, but is usually sufficient (120 mph or higher, at the least). You also don't need conventional brakes, as the ECU can reverse current flow to the engines for torque braking that's more powerful than conventional brakes anyways (although I'm sure they'll have to add some kind of mechanical e-brake for power failure scenarios), and you get regenerative braking with that to help battery range. Prototypes of these designs have already been built by multiple smaller companies. Since the ECU can control individual torque at all 4 wheels (both negative (braking) and positive (accel)), it's also possible in software to replace all the functions of "limited slip", "ABS", "traction control", etc with much more advanced and precise variants. They get acceleration times that blow the doors off of just about anything.

The only issue is usually the allowable travelling range on a battery pack of reasonable weight. The solution? A tiny (we're talking lawn-mower-sized) 2-cycle gasoline or diesel engine in the trunk, which runs at a fixed RPM very efficiently powering a small generator to keep the batteries topped off. For extended trips, you just gas up the small tank on the generator, and it's still vastly more fuel/power-efficient for the long-haul than any conventional or hybrid.

Why automakers continue dragging their feet with this "hybrid" drivetrain stuff, I don't know. Both the tree-huggers and the racers win with an all-electric design. The few that have been hand-built have been very expensive (the batteries and the motors being the huge expense obviously), but if a major auto manufacturer did this they would achieve much better economies of scale and drive the component prices down.

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Florida_GATOR

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MK44 Creed- " Ive got a bullet here with your name on it, and im gonna keep firing till i find out which one it is "

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Mergnthwirker

I hate hybrids and hope to avoid them as long as possible. They only represent a stop-gap solution in my book, but one that can be sold to the public since they don't require major changes in behavior to use them.

I work for several automakers as a supplier, and I do not see any of them "dragging their feet" on all-electric design. The limitations of current battery tech are very real. Did you happen to see the Business Week article on problems with li-on battery packs catching fire? It only takes a single bad cell to start a chain reaction and the best batteries today use hundreds of them.

Power grid issues are pretty significant as well. Today's all-electric prototype cars require at least 230VAC service, and would benefit from even higher voltage to shorten charge times to under 4 hours. But in many parts of the U.S. the power grid is struggling to satisfy domestic and industrial demand. Here in the Northeast we are constantly challenged with brownouts and power blips. Adding a few million all-electric cars to this equation will cause many of these systems to fail catastrophically.

There are great strides being taken on developing electric motors with better characteristics for automotive use, higher efficiency, better long-term reliability, etc. But until the battery and grid issues are solved, I think we're a ways from being able to take advantage of the technology.

Just my $.02

HJM

FricFrac

The Business Weekly article must be caught in the '80's because battery technology for vehicles isn't LiIon batteries from your laptop battery. Those batteries are capable of 1C output (eg a 1 amp hour battery can source one amp). Even LiMn which are have been available to consumers for the last two or three years are capable of 20C constant discharge and they can be pierced, crushed, etc without risk of fire. I've even dead shorted one and while there was a lot of soot, there was no danger of fire or explosion. I built a custom battery pack about 1/4 the size of a car battery that would source 600A continuous at about 34V. Thats 20KW and that's old technology. There is now LiPo/LiMn technology as well as LiFe, etc, etc, etc. LiIon is ancient and the Tesla car that uses all those LiIon cells would be the same as you soldering 1400 watch batteries to make a car battery instead of your lead acid battery - its all but insane. I'd like to see the article but it sounds like they are out to lunch.... I'm not saying we've arrived at the perfect battery but we are way further ahead than what is/has been implemented.

I would be shocked (no pun intended) if you don't have 240VAC in your house. Regardless its not the voltage that will reduce charge times - any voltage can be converted to whatever the battery arrangement is. Higher voltage makes more sense because smaller wires are required to carry the same power. As for the power grid there is so much energy on earth that is untapped.... but that's another long debate. Lets harness some of the wind power, etc. Its a matter of capital investment, etc and until the demand is there the investments won't be made. If we told you 20 years ago our power demands would be what they are today everyone would say impossible yet here we are....

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Evolved

And what emissions would an electric car have?

Florida_GATOR

none, they would reduce power from the sports car to make it less harmfull to the earth.

__________________
MK44 Creed- " Ive got a bullet here with your name on it, and im gonna keep firing till i find out which one it is "

Most badass job ever.