Showing posts with label Stefano Paris. Show all posts
Showing posts with label Stefano Paris. 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.

Tuesday, April 13, 2010

Chevy VOLT: Prius Killer!

Last Monday, GM's Tony Posawatz, vehicle line director for the Volt, and Dave Barthmuss, GM's communications director, invited a dozen Plug In America members to Dodger Stadium for what turned out to be an exciting test drive of the Chevy Volt. Coming hard on the heels of our Nissan trip, it's clear the leading car makers bringing back plug-in cars are serious about soliciting input from the people who have the most experience driving EVs. That's a good sign.

We started off with a thorough explanation of the car including the charge port and 120Volt cord set with the standard three pronged plug. Given that the battery pack holds 16 kWh, but only 8 kWh will be usable (this is to protect the longevity of the pack), Level one charging on a 120V should suffice for most folks. According to Dave Barthmus, Level two charging (240V) will be available, but it's not been decided whether this will come standard, or be an option.

As for the price, Barthmus said that GM will announce this crucial piece of information about a month prior to the release of the Volt this fall. I hinted to them that they needed to be at least as low as $35K-$37K to be competitive, and lower would be better.

My first impression of the car was how nice it looked. When I first saw the body at Chris Paine's house during our Plug In America fundraiser 18 months ago, it was surrounded by a crowd of people and nose to nose to a Tesla Roadster. Here, however, I was able to get a good look, and I liked what I saw. Not too conservative and not too wild, not too big and not too small, a car most people would feel comfortable driving.

In our group were three Tesla owners and two MINI E lessees while most of the rest of us drove RAV4 EVs, so as a group, we had a lot of experience behind the wheel of electric cars. I gladly jumped in with Stefano Paris and Colby Trudeau for the first round of test drives on the rally course set up in the giant parking lot. Stefano asked me to hold his video camera while he drove, a task made difficult by the sharp turns on the course.

The acceleration of the Volt is quite good. Cornering felt tight and predictable to me, although the Tesla and MINI E drivers thought it was a bit heavy, but considering what they are used to, that's to be expected. We did have four adults in the car, so that should be considered. All in all, I was thoroughly impressed with the driving characteristics of the Volt. I've got lots of experience behind the wheel of a Prius and can guarantee the Volt will run rings around the Toyota.

Stefano really pushed the car, and then Colby, all of about 20 years old, got behind the wheel and he pushed even harder. By contrast, I practically poked around the course. After our turn, Tesla drivers, Linda Nicholes and Nagin Zainab Cox, showed the boys how to drive fast. We were all impressed with their daring. I know Linda took a course in racing to prepare for the Tesla. I have no idea how Nagin got so good. Maybe it's just nerves of steel

So, the Volt is quick and corners well. How is it for hauling stuff? Bruce Tucker, a RAV driver, was curious because he needs to haul around a full sized bass violin in a case, something with which the RAV has no trouble.

Everyone gathered around to watch as he opened the rear hatch and slid the instrument in, easily closing the door with room to spare. He then got in the passenger side with the neck of the bass between him and the driver, plenty of room!












I'm excited we have such good choices for plug-in cars coming so soon. Whether you get a Leaf or a Volt, you'll be happy. Both are great cars. I don't see a lot of competition between the two since most people I talk to want either a pure electric, or they want the extended range. The people who should be worried are those who sell the Prius or Civic hybrid. As long as those cars remain plug-less, the Leaf and the Volt will eat them for lunch.