• Nov 18th 2007 at 7:53PM
  • 31

Click on the FCX Clarity for a high-res gallery

What you see pictured above is the world's first fuel cell-powered car designed from the ground up expressly for that purpose with series production in mind. It's not converted from any existing vehicle like the Chevy Equinox, Toyota Highland and Ford Focus that you can find elsewhere on this site. The Honda FCX Clarity takes the layout and design themes first seen in two years ago in the FCX concept to completion. As we reported earlier this week, the FCX Clarity will be available for lease to retail customers beginning in the summer of 2008.

In the days following the world premiere of the FCX Clarity at the LA Auto Show, Honda invited a select group of journalists to drive a pair of pre-production examples in Santa Monica. As pre-production samples, these two cars are essentially hand built but using production tooling. Some reports have the value of these cars as much as $10,000,000 which may or may not be accurate for the current stage of development, but read on after the break to find out what happens when bloggers take to the PCH and Malibu Canyon in Honda's latest creations.

All photos ©2007 Sam Abuelsamid / Weblogs, Inc.

Before we got to hop into the cars, some of the chief engineers and designers on the FCX program gave us a briefing on technical and design details. The soft-spoken VP of Honda of America R&D, Ben Knight, started things off with some background on the company's efforts in developing more efficient, less polluting technologies such as the CVCC engines of the 1970s and the EV-Plus battery electric of the late '90s and on to the fuel cell and diesel power-trains under development today. Knight may be soft-spoken, but like GM's Larry Burns, he is very much a hands-on engineer with a passion for developing new technology.

While facilities for retail distribution of hydrogen are obviously extremely limited right now, Honda is actively working to change that too. Honda Soltec recently started production of new photo-voltaic cells that only require half the energy input to manufacture of current cells. Their Torrance, CA headquarters campus has a hydrogen filling station that features two different H2 generators. A solar powered electrolyzer produces the gas from water, while the experimental Home Energy Station has a natural gas reformer.

With the most common way of producing hydrogen right new is steam reformation of natural gas, CO2 emissions still remain a concern. However, when well-to-wheels CO2 emissions are evaluated in comparison to gasoline engines, steam reformation and fuel cells show a sixty percent reduction. For solar powered electrolysis, Honda has proton exchange membrane electrolyzer that basically functions as a fuel cell in reverse and is eighty percent efficient. Although home hydrogen generation is still a ways off, centrally produced hydrogen is being distributed via pipelines right now. Shell will open be opening a hydrogen station in Los Angeles next year right on an existing 8" hydrogen pipeline.

Exterior Design Leader Masaru Hosagawa explained that the body of the new FCX was specifically designed to highlight the tiny drive-train that propels this relatively large car. The FCX takes the cab forward design ethos to a whole new level with the base of the windshield starting at about the front wheel center line and sweeping all the way back to the edge of the trunk lid in a continuous curve dubbed Dynamic Full Cabin Design. Combined with the super compact vertical flow fuel cell stack that sits within the center console, the FCX has an almost limousine-like interior volume for four passengers.

Speaking of the passengers, keeping them in climate-controlled comfort is important but regulating the temperature of such a large interior volume can consume quite a bit of energy. One way to minimize that energy is to regulate the temperature right at the surface of the occupants. Since the largest point of contact between the passengers and the car is the seats, Honda has chosen to provide a climate control system within the seats. Fans draw air into the front seats where a thermo-electric device chills or heats it before blowing it through pores in the seat cushions. The end result is greatly reduced demand on the climate control system.

The FCX Clarity has remained remarkably true to the concept with the most obvious visual difference being the nose. The production car has been stretched out by a few inches in order to provide crush space for crash protection. The grille has now been moved above a new chrome bumper strip taking the place of the previous full-width light bar. In profile the base of the windshield extended even farther forward and the front quarter windows were part of the body. Those windows are now smaller and integrated into the doors instead. At the back, the full width tail-lamp cluster is now slimmer in the middle providing room for an extra piece of vertical glass aiding rear visibility with the high deck.

That tall deck combines with a fuel tank mounted down low between the rear wheels to provide for much more trunk room than other converted fuel cell cars. Including the under floor compartment, the total storage volume is 13.1 cu. ft. The fully-appointed FCX is equipped with all the modern conveniences such as a satellite navigation system, adaptive cruise control, electronic stability control. All of this is combined in an aluminum structural cage that provides protection for the passengers and the fuel system.

Chief Engineer Sachito Fujimoto described the FCX platform as having been designed to be lightweight while providing maximum safety. The FCX is designed to meet and surpass all safety standards in the US and elsewhere. When this car becomes available next year, it won't require any safety waivers. The 5,000 psi hydrogen tank is designed to withstand any impact it might see in the real world. While the first generation FCX used a two tank storage system, the new car has switched to a single-tank setup. Previously separate components like the pressure sensor, regulator and shut-off valve are now combined in one module mounted in the tank.

Having only one tank means fewer connection points that can fail so that safety is enhanced and installation is a lot simpler. A single larger diameter tank has greater capacity in less overall space than two smaller tanks. The bottom line is seventy-four percent fewer parts and twenty-four percent better storage efficiency.

One problematic aspect of many previous fuel cell vehicles has been high weight. The Chevrolet Equinox Fuel Cell being used for that company's Project Driveway weighs over 4,400 pounds and the Sequel concept reportedly weighs over 5,000 lbs. Even the much smaller Ford Focus FCV weighs in at 3,600 lbs. The new FCX Clarity weighs in at 3,582 lbs, which is only about 175 lbs more than the similarly-sized 2008 Accord. Doing a ground up design around a fuel cell power-train has allowed Honda to optimize it for the purpose.

That pays off in the ride and handling of the Clarity. While some other cross-over type fuel cell vehicles definitely feel more truck like on the road, this car is pure Honda. Jonny Lieberman and I set out from the Fairmont Hotel in Santa Monica in one of the two FCXs and headed west on the Pacific Coast Highway toward Malibu. In a region heavily populated with Ferraris, Porsches, Aston Martins, Rolls Royces and Bentleys, the futuristic looking FCX seemed to draw remarkably little attention from other occupants of the PCH (continue reading to find out what it feels like to drive the FCX).

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    • 1 Second Ago
      • 8 Months Ago
      Well Done. Must be pretty cool to test drive these new cars. Hopefully it will become viable to mass produce.
      • 8 Months Ago
      Well if anything it certainly is ugly. :P
      • 8 Months Ago
      ChrisM you may be interested in this site


      • 8 Months Ago
      ==However, when well-to-wheels CO2 emissions are evaluated in comparison to gasoline engines, steam reformation and fuel cells show a sixty percent reduction.==

      Says who?
      • 8 Months Ago
      How much does it cost for 2009 Honda FCX Clarity .

      • 8 Months Ago
      Wayne, which "hydrogen direct from water in the vehicle as needed" process are you referring to? There are several, each with serious drawbacks:

      First is fuel reforming, that is, reacting a hydrocarbon fuel with water (steam, actually) to get CO2 and H2. It works with readily available fuels, but the process suffers from energy losses that make it only a bit more efficient than conventional engines, and the reforming device is expensive and difficult to operate. GM dropped work on that idea for just those reasons.

      Next is reacting a metal with water to form a metal oxide and H2. Several metals will work - magnesium, calcium metal, aluminum, iron, etc. The problem here is the large weight of metal needed, the high cost of the metal, the energy used to refine and recycle the metal, and the fact that these metals could be more efficiently used in a cheaper metal/air battery.

      Or maybe you are referring to one of those electrolyzer gizmos being hawked on youtube videos. Sorry, but it just doesn't work the way they claim. It doesn't matter what kind of voltage or pulse frequency or electrode spacing is used, the electrical energy produced by a fuel cell is far less than the electrical energy consumed by the electrolyzer to produce the H2 for the fuel cell. In fact, you loose about 70% of the energy in the process, possibly more for a poorly constructed homebrew electrolyzer. As for Stanley Meyer, he was just a good ole country scammer.
      • 8 Months Ago
      No one ever mentions the range. How far do you go for $5 worth H2
      • 8 Months Ago
      The commercial price for hydrogen right now is about $8 a kilo. Did you have any estimates from Honda about what it will cost in the future to buy it at one the new stations, or what it will cost to make your own, either from electricity or from natural gas?

      This car looks great, but I'm still not really sold on hydrogen. I think I'd like to use the new Honda PV solar panels to charge my Tesla.
      • 8 Months Ago
      I was told by Honda that retail stations in California are selling H2 for $5/kg
      • 8 Months Ago
      My former vice principle has one on lease and brought it in to school to show it off. It is sick. It gets about an equivalent of 68 miles per gallon. Also the only reason it is expensive is that there are only about 10 of them on the road, and because of that they only have them for three year leases. In southern California there are only a handful of hydrogen stations but of course there are only a handful of hydrogen cars here. Lastly, the price issue. Once you start mass producing them the price of course is gonna lower, and there would not be any more price issues. The only problem with using hydrogen now is the change of industry and the loss of jobs of the millions of people in the oil industry
        • 8 Months Ago
        Um, no, the reason why it is so expensive is that the 7,000 psi carbon fiber tank is expensive, and thanks to the required platinum catalyst, the H2 fuel cell is incredibly expensive. The fuel cell alone is a half million dollars, and over half of that cost is for the platinum.

        Sorry, but mass production just won't reduce the cost of platinum one bit. Even if everything else was brought down to zero cost, that's still a $300,000 car!

        Battery electrics are a better option, they have a huge advantage in both efficiency and cost, and they don't require any exotic rare materials.
        • 8 Months Ago
        Platinum use is exponentially decreasing with each fuel cell generation. The amount of platinum being used compared to even 5-7 years ago is astonishingly less. And yes, custom FCs are expensive but the price is also drastically reducing. Li-Ion packs are the same story. 5 years ago a Li-Ion pack for a 30 mile all-electric-range vehicle was $120,000 just for the cells and not including the electronics.

        Considering that some of the PHEV companies are asking $400,000+ per fleet vehicle from the stimulus package proposals, FCVs are comparable
      • 8 Months Ago
      "in an aluminum structural cage"

      The Clarity isn't all aluminium, aluminium was only used for certain parts of the car.

      Other than that, great writeup. I'm amazed how low they kept the weight. Only Honda could've done that. ;) lol
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