Showing posts with label Tesla. Show all posts
Showing posts with label Tesla. Show all posts

Sunday, December 26, 2010

An exciting ride in a VERY fast EV!

If you give engineers enough time and money, they can design some amazing products. Witness the Peraves E-Tracer, winner of the tandem division of the Progressive Automotive X-Prize.

This amazing 2-seat enclosed "cabin" electric motorcycle can travel close to ten miles on a kWh of energy while traveling 70 mph on the freeway. That's the equivalent of about 350 miles per gallon!

My buddy, Stefano Paris, drove this amazing vehicle to the beach on Sunday and enticed me away from my friends at the rings with the promise of an extended test drive on the LA freeways.





This is the view from the cockpit as Stefano arrived at the beach. Stares from everyone!




My friend, Alexandra, tried to convince me she should get the ride, but I wasn't about to give up my turn in the E-Tracer for anything!

Stef wanted to drive across town to Pasadena to visit a friend. So, I settled into the back seat, which looked very cramped until I got in and found my legs could stretch out fully making for a very comfortable ride.

The E-Tracer, being an enclosed motorcycle, presents an interesting problem when coming to a stop. Since you can't put your leg down as on a normal motorcycle, you have to flip a lever on the dash which triggers outrigger-style wheels that immediately (within half a second) hit the ground. The noise was similar to that of the wheels being lowered on a jetliner, although much quicker and quieter. When the light turns green, or the traffic clears in front of you, the driver begins moving forward and then hits the "wheels up" lever to get back to two wheels.

We jumped on the freeway and Stefano gave me a taste of what this engineering marvel was all about. Traffic was light, and conditions good, so he just barely opened the throttle and the bike bolted forward like it had all the power in the world. We've all driven cars for years, and everyone knows the feeling of a given vehicle's power to weight ratio. Most cars have generally the same feel, a lot of weight and only moderate power. This was not like that.

The acceleration was an enormous rush! It feels like you have about double the power of a normal car, but with one fourth the weight and virtually no drag.

We zoomed past the car in front of us like it was barely moving. It felt a lot like my exhilarating rides in a Tesla roadster, only instead of having the pedal to the metal, the throttle was barely tweaked.

Cruising at 70, we were consuming a mere 4 kW of power from a motor capable of 150 kW. Stefano says the E-Tracer is geared for a top speed of 200 mph! While we weren't about to test the top end of this bike, we definitely got to test the acceleration. The gearing is set for a fast top speed, so the 0-60 acceleration was something just north of 4 seconds. However, the 60-120 time is a mind-blowing 3 seconds! I only got a slight taste of that since Stef is a careful driver and doesn't want to risk a ticket.

The power plant Stefano had at his control is an AC Propulsion 150. This is the same motor that BMW used in its uber-popular MINI-E, and is the basis of the motor in the first generation Tesla. One big difference is that the E-Tracer is a mere 1260 lbs, less than half that of the Tesla.

The straight cut gears gave out a soft whine much like the EV1. Stefano says the production model will use helical gears which will eliminate the sound all together. Other than the gears, all you can hear is the wind. It's a very quiet ride.The view from inside as we cruised the 110 freeway in downtown LA. Notice the "Tron" advert in the upper right.

The windows are huge from the inside. The visibility is almost as good as being outside, yet you're in a climate controlled environment, protected by a kevlar shell capable of withstanding a pretty serious crash. The people inside, who knows? We did have three point belts, and I felt much safer than on my Vectrix.

One of the other aspects of the E-Tracer that contributes to its phenomenal efficiency is a coefficient of drag - how much air it pushes aside as it travels down the freeway - of only .19. This compares to the Tesla Roadster's .35 and a Hummer H2 of .57.

In LA, Ferraris and Lamborghinis are somewhat common, so while they elicit a longing look from the teenage boys and their close cousins, men in their mid-life crisis, they don't garner near the attention this unique vehicle gets. Everyone who saw this bright yellow bullet with its decals and sleek "Tron-like" appearance strained to get close enough to take pictures. I've never seen so many cameras shooting in my direction! It was like being on a movie premiere red carpet. What fun! When we were going through downtown LA and the traffic slowed to a crawl, cars on both sides of us jockeyed to get pictures. Given the speed, we had to drop the balancing wheels several times which must have looked really bizarre to those behind us.

Being a careful driver, Stefano didn't go very fast, but now and then, he would tweak the throttle to show the 7 series Beemer next to us that, well, there is no contest here. I was jonesing for a Ferrari, or even better, a Tesla, to pull up beside us so we'd have some decent competition, but the BMW was the fastest car we got to blow the doors off of.

Before heading back to Santa Monica, we stopped by the home of Alec Brooks, one of the leading designers of the modern EV, and a central character in "Who Killed the Electric Car?". Alec knows this motor well having worked for both AC Propulsion and Tesla in his storied career. Few people on the planet could have the appreciation Alec has for what this vehicle represents.

Monday, December 13, 2010

Nissan Delivers, Others Queue Up

We have reached the turning point when internal combustion has met its maker, so to speak. The world's fourth largest car maker, Nissan/Renault, makes millions of gas-burners, but Saturday, they began the transition to electric in earnest. Nissan could have delivered the first LEAF to a celebrity to get maximum coverage but, to their credit, they delivered it to Olivier Chalouhi, CTO of a tech company in the Bay Area who happened to be the first person to put down a $99 deposit. I like that!

Here is North American Nissan's Chairman, Carlos Tavares giving the keys to a very happy Chaloudi.
Photos by Marc Geller

Nissan will be alone in the market only briefly, as several transport trucks left Detroit yesterday loaded with dozens of Volts headed for eager recipients waiting with cash in hand.

As reported in the Detroit Free Press, "GM said it expected a total of 160 Volts to ship this week to its initial launch markets: California, Austin, Texas, and metro New York City and Washington, D.C."

And at last month's LA Auto Show, both Honda and Toyota indicated their intent to re-enter the EV market with announcements of the electric Honda Fit and the re-introduction of Toyota's well-loved electric RAV4 this time sporting a Tesla drive train.

I've sold 54 LEAFs so far, and as word spreads through the main stream media, inquiries are flowing in from all quarters. People just now learning of the EV revolution want to get in on the action, but patience is warranted since the numbers of cars will be limited at first. I can attest to the frustration at the slow roll out of the LEAF as many of my customers are asking "when is my car coming?" All I can say is "soon".

In addition to the manufacturers named above, we'll soon see EVs from Ford, Mercedes, Volvo, Mitsubishi, Coda, Fisker, Think and of course, Tesla.

The late comers needn't worry that the Volt and LEAF will gobble all the pent up demand since the first EVs to hit the market will do nothing but generate intense interest and demand for any car with a plug.

The recent rise in gas prices serves as a reminder of what happened in 2008 when gas hit north of $4. We all know that it can - and will - happen again. Those in line now to get their EV will avoid the worst of the damage when those prices inevitably rise.

Tuesday, June 15, 2010

Testing the Leaf on Nissan's Yokohama track

Dawn broke early this morning in Yokohama, and I was awake to see it since I was still on west coast time. I also couldn't sleep given this was the day I would finally get to drive the actual Leaf EV, not a converted mule like those I'd driven before.

Nissan flew Marc Geller and me, along with a few auto journalists and bloggers from around the world, to Japan on Monday for a Leaf immersion. We got started early with a hearty breakfast followed by a short bus ride through this large industrial city hard to Tokyo's southern city limits. The streets were amazingly clear of traffic, at least compared to any large American city I've visited. Marc speculated that it might be due to a good mass transit system. Also missing was even a hint of graffiti. Wish that were true of the U.S.

We arrived at Nissan's test track and were brought into a building where we received a thorough overview of the Leaf, along with instructions on how to avoid hitting the birds on the backstretch (hint: stop the car immediately!).

We were each given up to 30 minutes behind the wheel on the track, and I drew the lucky straw to be first. A very nice engineer who had designed many of the exterior features of the car was my instructor. He walked me through the starting process which essentially consisted of pushing a button that triggered a melodic series of notes, one of three you can choose to hear when you start your Leaf. Putting the car in drive is accomplished by nudging the round knob toward you and back, not unlike the dash mounted device on the Prius, but this one is located precisely where your hand naturally rests, so there is no reaching for it.

Ergonomically, the car is a dream. Everything inside seemed to fit my frame perfectly, and I suspect it will for most people. I tried the back seat and there was ample leg room and plenty of head room. Three adults could easily fit in the back seat.

The interior of the car is gorgeous! Like most Japanese cars these days, Nissan is taking pains to make sure as much recycled product is used to manufacture the interior panels, seat fabric and most everything else inside the car. The result feels good tactically and emotionally.

Once I had adjusted the mirrors and fastened the seat belt, it was time to drive. With cameras rolling I glided out of the staging area and onto the track's main straight away, flooring it to see what kind of kick it had. Since I'd driven the GM Volt not too long ago, I could fairly compare the two in terms of acceleration. I'd give the nod to the Volt on that score, but just barely. The Leaf had plenty of power in the lower speeds, but it leveled out just a tad as I got over 60. I didn't try to hit the top speed, but did get over 70 quickly and it was still pulling strong as I let off. On the third lap, I was feeling like I could push the curvy section and did. The car responded perfectly, hugging the road and steering predictably. I learned later that this is a consequence of having the bulk of the weight distributed tightly in the lower center of the car. This eliminates yaw of the vehicle when turning hard. An internal combustion car's front end will pull to the outside since the heavy engine is toward the front of the car. One final test was an emergency brake. I warned the co-pilot so he wouldn't freak out and slammed on the brakes. Just as with the RAV, the stopping ability was very strong. This seems to have something to do with combining the regen of the motor with the disc brakes. It really gives you peace of mind knowing it'll stop so well.

My co-pilot insisted I roll up the windows while we drove so he could demonstrate how quiet the car was. I've driven several EVs over the years, but nothing comes close to being as quiet as my RAV, that is until I drove this Leaf. Total silence, well, except for the tinnitus, but that's all in my head so it doesn't count. I even forgot about the controversial noise that the federation for the blind has insisted be added to all electric vehicles. Many in the EV community have tried to fight the move to add noise to these quiet cars since we think it's not really needed, but legislation is before Congress to do just that. Both Nissan and GM have given in to the demand and added noise to their respective EVs when they are driven at low speeds. After I got out, I didn't recall hearing the noise, so I asked them to demonstrate it. They brought a small gas car, the Nissan Versa, and a Leaf to a separate area and had first the gas car drive slowly toward us, then the Leaf. I could barely hear either of them, but the Leaf did have an audible noise. If you clicked that link, you heard the noise for both going forward and backing up. It sounds very loud in the you tube video, and that's why so many of us got upset that Nissan added such a noise, but in reality, it's barely audible when you're outside the car, and pretty much not audible at all from in the car with the windows rolled up. If there is ambient noise on the street, you probably won't hear it at all. The back up noise is about twice as loud, however, and was a bit obnoxious to me. Both noises can be turned off with the push of a button once the car is on, so it won't be a big problem unless or until the legislation passes and then they'll probably have to eliminate the button that disables the noise on future models.

Here's a picture of the small solar panel you get if you buy the SL version. The energy generated by the panel will help maintain a charge in the car's auxiliary battery to power in-vehicle devices. It's a nice touch and helps people understand that they can power the car's traction battery pack by installing a larger solar PV system on their house.

This photo shows a design of the Leaf that some have found unappealing, the head lamps. We learned today that they were designed to divert the airflow around the side mirrors to improve the coefficient of drag and reduce wind noise. The photo they showed from the wind tunnel seemed to prove the efficiency of the design.





They had three Leafs driving constantly over the course by the 2 dozen invited guests, with most everyone pushing the car to its limits over and over. After we were finished, they plugged in to a couple of 50 kW chargers to replenish the energy. I'd never seen an EV charge so fast! The Tesla HPC charges at about 18 kW and my RAV charges at 6.6 kW. This 50 kW charger took the Leaf's battery pack to 80% full in less than 20 minutes, then the amperage automatically dropped to top off the battery safely. The Leaf is initially coming out with a 3.3 kW charger, but will eventually be built with a 6.6 kW charger. However, as slow as 3.3 kW is, as long as you have one of the Aerovironment fast chargers available near your house, you'll always be able to get charged up in a matter of minutes (the one shown here is a Nissan built charger). Several dozen will be installed in the initial roll out cities with hundreds more planned as the number of Leafs grows throughout the first year. Eventually, there will be thousands of fast chargers along the freeways and inside of cities everywhere. All you'll have to do is drive to your favorite coffee shop and plug in. By the time you've sipped your latte, your car will be full.

The day was capped off with a big dinner on the 70th floor of Yokohama's tallest building. Nissan's top executives were sprinkled throughout the room with our table being graced by Nissan's super-friendly COO, Toshiyuki Shiga. Marc and I bent his ear for most of the dinner, then he was replaced with Hideaki Watanabe, Corporate VP and lastly with Andy Palmer, Senior VP, Product Planning. These executives have bet the bank on the success of their EV program, and Marc and I were happy to tell them their bet is safe.

If you haven't already deposited $99 to get a place in line, go here and do so today.

Thursday, we have lunch with CEO, Carlos Ghosn. I can't wait...