Re: Efficient bus

2003-12-30 Thread Kevin Tarr
Hmmm they might be running low voltage/high amperage AC. With contemporary frequency controls, AC might be the way to control speed and power. Does anyone know whether DC still provides the most starting/low speed torque? Or have the variable frequency AC controllers improved AC motors enou

Re: Efficient bus

2003-12-30 Thread Robert J. Chassell
> There are several reasons the [inverted rotor/stator] design was not > used in cars: > > * Motors like this make for heavier wheels; the `unsprung weight' > increases. I have yet to read a discussion of how important > this factor is now; all I know is that engineers have always >

Re: Efficient bus

2003-12-30 Thread Matt Grimaldi
William T Goodall wrote: > > >> http://www.rnw.nl/science/html/031215wheel.html Doug Pensinger wrote > > > > Yeah that's very interesting but not new, It's > > > basicaly a bus version of an hybrid car like the > > > Prius sold by Toyota since 97 (BTW, it's definitely > > > my next car) the extra

Re: Efficient bus

2003-12-29 Thread Robert Seeberger
- Original Message - From: "Robert J. Chassell" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, December 29, 2003 9:13 AM Subject: Re: Efficient bus >Rob sez: >> The inverted rotor/stator design is such an obvious and elegant >>

Re: Efficient bus

2003-12-29 Thread Robert J. Chassell
The inverted rotor/stator design is such an obvious and elegant solution to an electric drive for vehicles that one does wonder why it hadn't been thought of before. It has been thought of before. To my personal knowledge, it was thought of at least 40 years ago. There are several re

Re: Efficient bus

2003-12-27 Thread Kevin Tarr
But there is actually no new tech involved, just some good brainwork. The inverted rotor/stator design is such an obvious and elegant solution to an electric drive for vehicles that one does wonder why it hadn't been thought of before. But I think that shows just how difficult it is to "think out

Re: Hybrib vehicules was: Efficient bus

2003-12-27 Thread Doug Pensinger
On Sat, 27 Dec 2003 20:42:07 +0100, Jean-Marc Chaton <[EMAIL PROTECTED]> wrote: * Doug Pensinger [Sat, 27/12/2003 at 11:34 -0800] It makes so much sense, too, ya gotta wonder why it hasn't been done before. Is the necessary technology state of the art? I don't understand your question. Sorry.

Re: Efficient bus

2003-12-27 Thread Robert Seeberger
- Original Message - From: "Doug Pensinger" <[EMAIL PROTECTED]> To: "Killer Bs Discussion" <[EMAIL PROTECTED]> Sent: Saturday, December 27, 2003 1:34 PM Subject: Re: Efficient bus > On Sat, 27 Dec 2003 20:23:41 +0100, Jean-Marc Chaton <[EMAIL

Hybrib vehicules was: Efficient bus

2003-12-27 Thread Jean-Marc Chaton
* Doug Pensinger [Sat, 27/12/2003 at 11:34 -0800] > It makes so much sense, too, ya gotta wonder why it hasn't been done > before. Is the necessary technology state of the art? I don't understand your question. -- Jean-Marc ___ http://www.mccmedia.c

Re: Efficient bus

2003-12-27 Thread Doug Pensinger
On Sat, 27 Dec 2003 20:23:41 +0100, Jean-Marc Chaton <[EMAIL PROTECTED]> wrote: * William T Goodall [Sat, 27/12/2003 at 16:47 +] http://www.rnw.nl/science/html/031215wheel.html Yeah that's very interesting but not new, It's basicaly a bus version of an hybrid car like the Prius sold by Toyota

Re: Efficient bus

2003-12-27 Thread Jean-Marc Chaton
* William T Goodall [Sat, 27/12/2003 at 16:47 +] > http://www.rnw.nl/science/html/031215wheel.html Yeah that's very interesting but not new, It's basicaly a bus version of an hybrid car like the Prius sold by Toyota since 97 (BTW, it's definitely my next car) the extra plus of that bus is the

Efficient bus

2003-12-27 Thread William T Goodall
http://www.rnw.nl/science/html/031215wheel.html "A new Dutch invention can make cars, busses and other vehicles no less than 50 percent more efficient and thus more environmentally friendly. Better still, the technology is already available; it all comes down to a smart combination of existing