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Hybrids - News, Reviews and Views in the Press

567 messages,  Last post on Oct 30, 2009 at 9:21 PM

You are in the Hybrid Vehicles Forum. Your Host is pf_flyer

What is this discussion about? Toyota Camry Hybrid, Toyota Highlander Hybrid, Honda Civic, Hybrid Cars


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#476 of 567
Re: An early Hybrid - Phase Three [talmy1] by stevedebi
Sep 08, 2008 (12:18 pm)
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Replying to: talmy1 (Sep 08, 2008 12:06 pm)

"Interesting site, but this isn't a hybrid. A hybrid has two or more power sources (typically gasoline ICE and batteries). This truck is gasoline powered with a motor/generator for its transmission, basically the same approach as the diesel-electric locomotive. "
 
This is a "series" hybrid, a category that also includes the diesel electric locomotive. They aren't always referred to in this fashion, but that is the correct terminology.
#477 of 567
Re: An early Hybrid - Phase Three [talmy1] by moparbad
Sep 11, 2008 (7:40 pm)
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Replying to: talmy1 (Sep 08, 2008 12:06 pm)

Yes it is a series (or serial) hybrid.
#478 of 567
Re: An early Hybrid - Phase Three [talmy1] by moparbad
Sep 11, 2008 (7:48 pm)
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Replying to: talmy1 (Sep 08, 2008 12:06 pm)

quote-
For example, between 1938 and 1942 Walker Electric Trucks produced the Dynamotive. This series hybrid gasoline-electric truck definitely fits the definition of a hybrid.
-end
 
Hybrids and Alternative Fuels Deliver the Goods
#479 of 567
Re: An early Hybrid - Phase Three [moparbad] by toyolla2
Sep 12, 2008 (5:12 pm)
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Replying to: moparbad (Sep 07, 2008 3:38 pm)

moparbad I saw your earlier post and e-mailed some questions to Jay Crist. Here is just part of an e-mail that he took the time to prepare. He is definitely a do-er not a talker, and boy is he modest about what he does.
 
"I'm not a very technical person so there a bunch of questions I can't answer. I don't know the specs on the electric motor. I do know the generator puts out 80 volts at 1,000 amps.
- The drive motor and the power generator were completely rebuilt by Motor Technologies in York Pa.
- As far as a schematic drawings is concerned, there is none known to be in existence. We were lucky to get 20 pages of a Walker manual from the son of the former Chief Electrical Engineer of the the Company.
- The speed of the trucks is in the neighborhood of 40 mph.
- The shaft that supports the electric motor is hollow to allow the 1" axle shaft to pass through it to the differential on the other end of the shaft.
- You stated a Modern Test Drive Review would be fun to read if one of my drivers would have the time. I'm no Test Drive tech center. There are no other drivers, I'm the only person who drives these vehicles..... "
 
"It is now in the paint shop until the end of the month and we will have it completed by the end of September ready to be on display at the Hershey AACA National Show on October 11th. It will also be on special Exhibit at the Hilton Head Concours d"Elegence Show November 1st & 2nd.2008."
  
and there it is. A simply awesome achievement.
 
Also thanx to moparbad for digging out that reference.
 
The photos show four tell-tale terminal posts on the traction motor. Obviously a series wound machine. The series field has to be brought out separately and sent to the controller. That way by reversing the field connections at the controller will the motor be caused to reverse its rotation. Series motors are also used in trams except that here the voltage applied to the motor circuits is not a fixed value but is varied by speeding up the engine. Whether there is a variable field control on the generator I have no idea.
 
I was thinking It would be possible to control the system with electronics 1938 style, although motion control circuits with tube amplifiers processing analog signals probably never occured to them way back then. Although television had started by that time and those circuits are fairly complex so the necessary skill sets would have been available. Imagine a situation with owners having to decide whether to call a mechanic or a tv repair person out whenever their vehicle won't go. Well it hasn't happened with the Prius yet !
T2
#480 of 567
THIS is EXCESSIVELY cool by larsb
Sep 16, 2008 (6:54 am)
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Robotic Prius eliminates Smug Driver
 
A unusual motorcade made its way across the San Francisco-Oakland Bay Bridge early one morning last week: a silver Toyota Prius, complete with police escort and camera crew, but with no driver at the wheel.
 
The robotic Prius was the invention of Anthony Levandowski, 28, a computer engineer who lives in San Francisco, works in Silicon Valley, and built the so-called "Pribot" in his spare time.
 
"Some people like to work on hot rods, boats, or airplanes," Levandowski said afterward. "I love robots."
 
Pribot's real-world test started on September 7 at Pier 7, a nondescript slice of San Francisco's often-foggy waterfront, around 7:30 a.m. The autonomous vehicle drove along the Embarcadero, took a right on Harrison Street, turned onto the bridge itself, and exited at Treasure Island.
 
The result? Years of hard work paid off. No little old ladies were run off the road. Pribot's trek, Levandowski said, took place without incident, save the car scraping its left side as it drove up the ramp exiting the Bay Bridge.
 
This was far from his first experiment with self-guided vehicles. As a student at the University of California at Berkeley in 2004, Levandowski was part of a graduate student team that created a robotic motorcycle called Ghostrider to enter DARPA's Grand Challenge.

 
#481 of 567
Re: THIS is EXCESSIVELY cool [larsb] by gagrice
Sep 17, 2008 (6:00 am)
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Replying to: larsb (Sep 16, 2008 6:54 am)

He should team up with the folks that ran a Prius in DARPA last year and finished. Still got beat out by a VW and a Escape Hybrid.
 
http://www.benfranklinracingteam.org/
#482 of 567
Big Apple by pf_flyer HOST
Nov 05, 2008 (7:44 am)
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Judge Blocks Hybrid Taxi Requirement
 
Dealing a sharp blow to the Bloomberg administration’s attempt to reduce air pollution and greenhouse gas emissions, a federal judge on Friday blocked New York City from requiring owners and operators of yellow taxicabs to switch to more fuel-efficient hybrid vehicles that operate on a mixture of gasoline and electricity.
 
#483 of 567
VW by pf_flyer HOST
Nov 05, 2008 (8:10 am)
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http://www.reuters.com/article/rbssConsumerGoodsAndRetailNews/idUSL1182483200811- 01
 
FRANKFURT, Nov 1 (Reuters) - Volkswagen plans to produce virtually all the components for motors used in hybrid and electric vehicles on its own unlike competitors who rely on suppliers, a German magazine reported.
#484 of 567
LA Auto Show by pf_flyer HOST
Nov 19, 2008 (5:23 pm)
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LOS ANGELES — Ford Motor will announce Wednesday that it plans to beat Toyota (TM) at its own game when it comes to hybrids.
It's the latest example of U.S. automakers trying to "out-hybrid" Japanese brands that had a head start with the gas savers.
 
http://www.usatoday.com/money/autos/2008-11-18-ford-hybrids-toyota_N.htm
 
Is this the new direction for Ford? Will it pull them out and ahead of the other domestic brands?
#485 of 567
2009 HCH breaks world record by larsb
Jan 02, 2009 (7:09 am)
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An amazing road trip through adverse conditions nabs a World Record - ( Sorry, Jetta TDI )
 
November 22nd, 2008 marked the beginning of a historic effort by three highly regarded Hypermilers to break a World Record established just two months prior. Completed September 25th, this record was achieved by Australians John and Helen Taylor in a 2009 VW Jetta 2.0L TDI sponsored by Volkswagen, Shell, and Navman. The Guinness verified record of 58.82mpg (US) set a new standard of efficiency in real world (official) mileage while traversing the country. Could our team of intrepid drivers overtake this lofty number in spite of unpredictable winter conditions?
 
Not only did they overtake the target mileage, they exceeded it by 11.5% to establish the new record at 68.54mpg (US) in a 2009 Honda Civic Hybrid carrying three people and their luggage through all 48 contiguous states.

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