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New Speed Record For Hybrid Cars

prostoalex writes "According to CarPages, Toyota Prius set a new world record for hybrid vehicles. It 'set the mark at 130.794 mph on the three-mile short course using a standard Hybrid Synergy Drive power-train - a mixture of 1.5 litre petrol engine and an electric motor.'"

20 of 411 comments (clear)

  1. The FASTEST...erm... by Sensible+Clod · · Score: 5, Informative

    actually, it's the only hybrid ever entered. In fact, they had to convince the people to open a new category in order to allow the vehicle, because it has more than one 'engine'. IIRC, it may also have been because the other 'engine' (elec. motor) doesn't 'use conventional fuel'.

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    1. Re:The FASTEST...erm... by skywire · · Score: 5, Interesting

      The so-called 'hybrids' use nothing but 'conventional fuel', albeit in an unconventional manner. For marketing purposes, the manufacturers lead the public to believe that they derive part of their energy from combustion of petrol and part "from electricity", which is meaningless but impressive to the average consumer, who doesn't stop to ask why, if that is so, he is not having to charge up his car every night.

      Our local newspaper recently published a glowing 'news story' (a regurgitation of marketing hype) written by a dreamy-eyed reporter who clearly believed that somehow there was a second energy source besides petrol involved. He even claimed that as long as a 'hybrid' was driven below a certain speed, it consumed no petrol (Lest I be flamed, let me make it clear that I am well aware that a 'hybrid' can switch its internal combustion engine on and off as needed while drawing current from the storage cells. The reporter's claim went far beyond that. If he were to be believed, we could all drive around for free the rest of our lives as long as we kept our speed under a certain threshold.)

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    2. Re:The FASTEST...erm... by Andy_R · · Score: 4, Informative

      Actually, almost all land speed record breakers in recent years have been dual engine hybrids. The LSR rules require the car to be able to go in reverse, and the common solution to this requirement is to stick a tiny electric motor in somewhere that can strain itself half to death while dragging the car a few inches backwards to fit the rules.

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    3. Re:The FASTEST...erm... by oozer · · Score: 4, Interesting

      amen, somebody please mod the above post up.

      I read an article on here some time ago where somebody declared that a future depicted full of hydrogen powered vehicles was a "cruel hoax" and that hybrid cars were the best hope for the short to medium term. I can't comment of whether we'll ever be able to manufacture hydrogen in large enough quantites viably, but if you examine the facts, hybrid cars are the cruelest hoax that presents the car buyer today. Hybrid performance is awful in current models - that may improve with better battery technology (the electric motor is the easy part). However the gas mileage these things get is a joke. The Prius gets about 45mpg in realistic useage (based on the independent reviews I've read). That's worse than most european diesel cars get - diesel cars that have decent performance and aren't made of plastic in an attempt to compensate for the weight of lugging two complete power sources about all the time. Oh yes, and they're a helluva lot cheaper to make for the same reason.

      That's not to say I'm a big fan of diesels before anyone starts laying into them and me for all the problems they have. My point is that the hybrid cars claim of being an enviromentally friendly choice is a joke when it gets worse mileage than cars Peugot were making 10 years ago. Still, if it lets the rich people who can afford them feel better that's OK, as long as everyone else realises they are just a PR effort on the part of car manufacturers to make it appear like they give a damn.

    4. Re:The FASTEST...erm... by Dominic_Mazzoni · · Score: 4, Insightful

      The Prius gets about 45mpg in realistic useage (based on the independent reviews I've read). That's worse than most european diesel cars get - diesel cars that have decent performance and aren't made of plastic in an attempt to compensate for the weight of lugging two complete power sources about all the time. Oh yes, and they're a helluva lot cheaper to make for the same reason.

      I have a Prius, and you're right, I do get about 45 mpg. Keep in mind, though, that diesel is currently a little bit better than hybrid technology in terms of efficiency, but it lags far behind in terms of emissions...the hybrid is far, far better for the environment.

      Also, I fail to see how hybrid and diesel are mutually exclusive. Many of the technological breakthroughs that Toyota and Honda have pioneered in making their hybrid engines could be used with diesel engines, too, right? Regenerative braking, continuously variable transmission, fast-starting and stopping of the engine - there's no reason these can't be eventually used in virtually every automobile.

    5. Re:The FASTEST...erm... by ph43drus · · Score: 5, Informative

      The parent is right that the cars only get their energy from gasoline. However, there is a deeper efficiency story here that just isn't as quick and easy a sound bite as "getting your car's energy from two sources---gas and electricity"---which is an awful marketroid half-truth.

      Anyway, to clarify on hybrids:

      The efficiency story goes like this: your normally car engine sucks as far as efficiency is concerned. This is because they have to operate over a wide range of speed and power requirements. Eg. from just taking off from a dead stop to running up a hill at 70mph or more. A spark engine can get to be about 30% efficient (this is from memory, it might even be up to 40%, I'd have to go look it up, and I'm feeling lazy ;). But anyway, the point is, that because of the requirements put on the spark engine in a car, it has to be designed for maximum power output, and this means for most driving the highest efficiency a car engine can attain is 20% (this would be for a tiny Japanese car which is engineered for fuel efficiency, like a Toyota Tercel or Honda Civic, other cars, like most SUVs, perform worse).

      The trick with the hybrids like the Prius is that they have the battery+electric motor to supplement the gas engine. So, the designers can do something important: they can pick a median power output (much below maximum required power output), and design the spark engine to be maximally efficient for that power output. This allows them to get the 30-40% efficiency out of the gas engine mentioned above. The hybrid only ever runs the gas engine at this power output. If this is too much, the electric motor run the wheels. If this is too little, the motor and the engine drive the wheels. If the batteries are getting low, the gas engine drives the electric motor to charge the batteries. When braking, part of the axel motion is used to drive the electric motor and charge the batteries (reclaiming some of the energy already expended to be reused---this is the regenerative braking that others have mentioned). Note: the designers at Toyota and Honda have taken advantage of the fact that an electric motor and generator are merely the same device, which one it functions as depends on which end the energy comes in, so there is no separate generator. (And if it occurs to you that the clutching system would be complicated because of this, you're right.)

      As far as being able to charge up your hybrid, there are some experimental models with that feature. You might eventually be able to do that; so if you just drive around town, you'd only rarely have to fill your tank (however, this feature requires that the bank of batteries is bigger, and 50% of the electricity in the US comes from coal, so the pollution/energy expenditure could end up being worse off the wall charge, depending on where your power comes from ;).

      Jeff

  2. Not exactly standard... by avalys · · Score: 4, Informative

    This car was not exactly "standard", as the summary claims.

    "An engineering group from Toyota Motorsport in the USA prepared the car by changing the gear ratios (4.32:1 to 3.2:1) and increasing the inverter voltage from 500 to 550 volts. A transmission cooling system was added to decrease the temperature of the inverter and electric motor to maximise efficiency. Ambient temperature on the salt flats was nearly 100 degrees Fahrenheit with nearly 100 degrees humidity. Ice was added between runs to keep the system cool.

    The interior of the car was stripped to save weight, a roll cage added for safety and the whole car lowered by five inches to improve the aerodynamics for this highly specialised record attempt. Even the 26 in front and 25 in rear tyres were made especially by Goodyear."


    With that in mind, hybrids have a long way to go.

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    1. Re:Not exactly standard... by iamhassi · · Score: 4, Informative
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  3. 130.794 mph by k4_pacific · · Score: 5, Funny

    What, did it go off a cliff?

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  4. Wait by The_Mystic_For_Real · · Score: 4, Interesting
    They didn't mention the statistic the matters much more (to most of us) than top speed, which is acceleration. Very few people ever drive above 85-90, and most driving is done below 60, so being able to go 130 doesn't matter that much.

    Where hybrid and pure electric cars really need to improve is the all important ability to get up to speed quickly and smoothly, and it doesn't appear that this car really addressed this critical issue.

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  5. We need a Formula One series for Electric/Hybrid by NZheretic · · Score: 4, Interesting
    Just as early twentieth century motor racing pushed the development of the automobile, the world desperately needs a world wide racing series for hybrid electric cars.

    The fantastic acceleration that in line wheel electric drive can potentialy deliver would make for some very exciting racing.

  6. Hybrid technology needed a little redneckization.. by CodeWanker · · Score: 4, Informative

    Let's face it, cool car ideas come from people who love cars the way most /.ers love processor overclocking, water-cooling, and case mods. Convincing a wider audience that tweaking a hybrid will make it jump up and dance is never a bad idea.

    Of course, as a side note, the industry's approach to hybrid autos is flat out wrong. Railroad trains are very efficient, well-proven hybrid designs: their diesel engines are always running at the most efficient level, and their momentum is provided entirely by electric motors. Tres spiffy.

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  7. I can picture it now.... by Duncan3 · · Score: 5, Funny

    The car at the starting point, gas engine reved up and getting louder, charging up the electric system...

    A slight yellow glow enveloping the car...

    Rocks and dirt flying up in a whirlwind around it...

    Driver screaming SUPER HYBRID SPEED WAVE!!! and darting off in a cloud of dust...

    Um... this car was Japanese right?

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  8. Re:OOOOH WOW by Infinityis · · Score: 5, Informative

    Actually, that myth will likely be futher crushed with the release of a retrofittable hybrid electric vehicle kit, such as the one being developed by Ecolectric Technology (www.ecolectrictechnology.com). Then, you can take any vehicle, retrofit it to be hybrid electric, race it, and claim a new world record. The inherent increase in low-end torque (and thus acceleration) will probably make it as desirable a modification as turbochargers or superchargers on any performance vehicle.

    A hybrid McLaren might be pretty nice if you as me...

  9. Re:OOOOH WOW by Rosco+P.+Coltrane · · Score: 4, Insightful

    You seem to be forgetting a very basic marketting effect: look at rally racing cars in europe these days: most cars entered are mom-and-pop 4-door sedans, or bargain basement 2-door econoboxes that are strategically souped up and modified for racing by the manufacturers themselves (if not simply a racing chassis with a fake body of the model in question).

    That way, mom and pop's teenage son fresh out of getting the driver's license, and young adults, associate the shite econobox with the powerful race cars they see on TV and they buy it.

    So guess what? hybrid manufacturers are doing the same. The least thing they want is for their vehicles to be associated with being a mature person's choice for economy and savings. So they race hybrids, even if it makes no sense, to make them sexy to young male drivers. Plain and simple.

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  10. Let me be the first to say it.... by conteXXt · · Score: 4, Funny

    130.794 mph should be more than enough for everybody.

    (ooops....did I say that?)

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  11. Re:They did cheat a little by stripping it. by Firethorn · · Score: 4, Informative

    No, but a steam powered vehicle did hit 127.66 mph in 1906.

    Besides, Model-T's weren't speed machines, they were consumer machines that opened up the market to sectors who had never before been able to afford a car. A model-T modified for racing could reach 100 mph

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  12. Re:What on earth does that mean? by ColaMan · · Score: 4, Interesting

    It's either a typo , actually referring to 100% humdity (crikey!) or they mean the wet bulb temperature was nearly 100 degrees.

    For those who say "WTF is wet bulb temp?" it goes like this:

    You have two thermometers.
    One has (typically) a sock/tube of cloth over it's sensing bulb that has the bottom of the tube in a bit of water, so that it's wet. It's the "wet bulb"

    You also have a dry bulb. (i.e. a normal thermometer hanging out in the air)

    Now, at 100% humidity, the wet bulb will be at the same temperature as the dry bulb, as the water on the wet bulb does not evaporate (as the air is already saturated). As the humidity decreases towards zero percent, the wet bulb will have a progressively lower temperature compared to the dry bulb, due to the cooling effect of the evaporating water. Look the two (wet and dry) temperatures up in a handy chart that someone has already calculated, and ta-da! Humidity in percent.

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  13. Re:Many years ago ... by killbill! · · Score: 4, Informative

    If you still think diesels stink, think again. In my country, even BMW sales are over 80% diesel.

    A nice example of modern Diesel engineering is the VW Phaeton V10 Tdi. It has 313 HP and, while officially electronically limited to 250 kph (155 mph), was tested at over 290 kph (180 mph) when it was released one year ago. It does 0-100 kph (0-62 mph) in 6.9 seconds (not too shabby for a 3 metric ton car). And yet, it still gets 27.7 mpg.

    To put it in a nutshell, I don't quite get what this hybrid frenzy is about. Soot emissions used to be a problem, but the latest cars get a soot filter that tackles it. On the other hand, batteries are an additional weight, and once at the end of their lives, are an environmental nightmare.
    Or could it be all about oil companies being too lazy to invest into cleaner gas-oil (like they sell in Europe)?

    If you're an American looking for a new car, I strongly suggest you gave the few imported diesel VWs, Audis or Mercedeses a try before you go the gasoline route.

  14. According to Honda... by scott9676 · · Score: 4, Informative

    My Insight can go 115 mph. And this is stock without being stripped, having a roll cage, or any other modifications.

    It has a 995 cc 3 cylinder gas engine putting out about 63 hp. In series it has a 13 hp electric engine. Because the 2 engines have different hp/rpm curves, it puts out 68 hp. But it only weighs 1850 pounds.

    The car goes 0-60 in 10.5 seconds, has really good handling, and drives kind of like a go kart. The only real bad thing is there isn't much sound insulation, so there is a fair amount of road noise.

    But even going 90 mph, it can still click off about 50 mpg. At 45 mph, you can get it into 'lean burn' mode and get a bit over 100 mpg.

    It's a really good commuter car, has a lifetime mileage of 56 mpg (would be a lot higher if I drove a bit more conservatively and didn't live in a hilly area).

    Also, there are some electric cars that go 0-60 in 3.6 seconds IIRC.