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@  Francesco : (14 April 2015 - 01:24 PM) Genius. I never even saw that selection, and have no idea how "items I started" got selected. Thank you!
@  FlossyTheSmart : (14 April 2015 - 01:03 PM) Are any of the things in the left column under the "other" section checked?
@  FlossyTheSmart : (14 April 2015 - 01:02 PM) Got it
@  Francesco : (14 April 2015 - 01:02 PM) done
@  FlossyTheSmart : (14 April 2015 - 10:05 AM) Definitely send me a screenshot via PM then.
@  Francesco : (14 April 2015 - 08:55 AM) I'm back from Australia, same issue on my laptop. "View New Content" doesn't show any new content. Chrome on Win7
@  KurtMan : (10 April 2015 - 10:00 AM) Thanks for the suggestion but it looks like uncle Glen will be supplying me a used one.
@  turbomar : (09 April 2015 - 08:34 PM) Perhaps you could check with Troy. He may have a good used one??
@  KurtMan : (09 April 2015 - 12:53 PM) Do you have a place in mind to order from? I don't want to pay more than a couple hundred...
@  marchanna : (09 April 2015 - 12:31 PM) Did you try ordering one online. You can probably get next day delivery.
@  KurtMan : (09 April 2015 - 10:16 AM) Does anyone have a parts car in the Ottawa area? I need an intercooler A.S.AP
@  Francesco : (07 April 2015 - 01:32 PM) yeah 3G. There was a long lineup at Vodaphone. Didn't know Optus uses LTE bands my iPad doesn't cover... Vodaphone worked on LTE last time I was here
@  Francesco : (07 April 2015 - 01:30 PM) I won't make you chase this until I get home next week. It has to be related to the hotel wifi portal somehow, at it has worked fine on Optus 3G for a few days until we checked in to this hotel
@  marchanna : (07 April 2015 - 09:43 AM) It would appear so
@  FlossyTheSmart : (07 April 2015 - 09:24 AM) It seems like Francesco is having some different problem than you were
@  marchanna : (07 April 2015 - 08:55 AM) It works fine for me now. Do you still want a screenshot?
@  FlossyTheSmart : (07 April 2015 - 05:10 AM) hmmm... mind sending me a PM with a screenshot if possible?
@  Francesco : (06 April 2015 - 11:28 PM) Ok cleared cookies, it showed I was logged out and there was a raft of "new content" but when I sign in it still says "Sorry..."
@  Francesco : (06 April 2015 - 11:25 PM) just for data points, I may have broken cookies or something, I'm in Surfers Paradise on hotel wifi right now
@  Francesco : (06 April 2015 - 11:25 PM) What I'm saying is it *always* tells me "Sorry, no new content found," though if I click the "Forums" tab above it clearly shows new posts
@  FlossyTheSmart : (06 April 2015 - 07:59 PM) OK, the behaviour has now been changed. View New Content should now always default to Forum content, no matter what page you click the button from
@  FlossyTheSmart : (06 April 2015 - 07:43 AM) I'll leave it as an open question for the day, and will change it when I get home tonight.
@  marchanna : (06 April 2015 - 07:38 AM) I think that what be best unless some one else thinks otherwise.
@  FlossyTheSmart : (06 April 2015 - 07:37 AM) (Yes I can change it, relatively easily). Do we want the View New Content button to ALWAYS default to showing new Forum content? That probably makes the most sense. The other options would still be there, but you would have to manually select them.
@  FlossyTheSmart : (06 April 2015 - 07:33 AM) I'll have a look though
@  FlossyTheSmart : (06 April 2015 - 07:33 AM) Not sure if I can change that, because usually people want to see the new content for the Forums
@  FlossyTheSmart : (06 April 2015 - 07:33 AM) Yeah, that's the default behaviour. YOu should then be able to manually change between what type of New Content you are viewing with the options on the left side of the page from there
@  marchanna : (06 April 2015 - 07:05 AM) It appears to show the "new Content" of whatever subcategory you're in. Ie, when I was reading PMs, then click view new content, I got nothing because I was in the Members sub category. But when I clicked Forums, then View New Content, it worked fine for me.
@  FlossyTheSmart : (06 April 2015 - 04:45 AM) When you click "New Content", is the "Content Type" on the left side of the page set to Forums, or something else? If you do Marchanna's trick, it will open to the Forum stuff by default, but I think if you go from the front page, it will use whatever you last selected (intentionally or otherwise)
@  Francesco : (06 April 2015 - 02:56 AM) Yeah, not showing me anything.
@  marchanna : (05 April 2015 - 02:35 PM) I think there's a glitch. Click on forums first (at the left of the page) then click on view new content button
@  Francesco : (05 April 2015 - 01:09 PM) I think "View New Content" is broken, doesn't show me anything anymore.

Photo
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Electric car with "on board" generator


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17 replies to this topic

#1 smart65

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Posted 03 August 2011 - 04:21 PM

I thoought that this might be an interesting discussion to kick off here.How big would a portable 120/240v generator have to be to supply enough continuous energy run an electric car? I'm visualizing one mounted on a small trailer and plugged into the battery's charge circuit. Somewhat similar to a diesel-electric locomotive, where the internal combustion engine generates electricity to run the electric motors which propel the vehicle. It would increase the range of the car, but the fuel economy wouldn't likely be very spectacular. Whatever became of the fuel cell? That would be a natural, if it were developed to the level the original hype promised. Feel free to add your thoughts on this subject.
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#2 Francesco

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Posted 03 August 2011 - 04:55 PM

Consider that a high-efficiency electric motor running of lithium-ion batteries (think: Tesla) operates at perhaps 88% efficiency. A modern, four-stroke internal-combustion engine in a car operates at roughly 18% efficiency. In other words, you would have to supply roughly five times the input energy potential to a combustion engine just to get the electric drive train to run.

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#3 Mike T

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Posted 03 August 2011 - 05:24 PM

Overall efficiency will be far lower than if the ICE powered the car directly (ICE loss plus electric loss).....and the ICE used will probably pollute far more than a road legal car engine would, so it's a double hit against air quality and global efficiency. Far better to buy a new Volt if this is the way you want to go.

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#4 Graham

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Posted 03 August 2011 - 06:55 PM

Overall efficiency will be far lower than if the ICE powered the car directly (ICE loss plus electric loss).....and the ICE used will probably pollute far more than a road legal car engine would, so it's a double hit against air quality and global efficiency. Far better to buy a new Volt if this is the way you want to go.

The efficiency of an ICE dedicated to a generator would likely be higher than that for one powering the car directly. It would be run at an optimum rpm to maximize efficiency. But there is no question that there are losses. The Jaguar C-X75 uses this principle, but uses gas turbines instead of an ICE to drive the generators that charge the batteries. Such a car can run on batteries when emissions are a problem, but extend range by running the generators when on the open road.
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#5 Henry

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Posted 04 August 2011 - 03:10 PM

This has already been achieved in the Fisker Karma. http://www.fiskerautomotive.com/#!/kar...ions/powertrain This is quite comparable to the tesla but more refined. Alan

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#6 Francesco

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Posted 04 August 2011 - 04:47 PM

Wouldn't the on-sale-now Chevy Volt be the standard bearer in the plug-in hybrid segment, beating the Karma to market by a full six months? The Tesla Roadster and Model S are fully-electric vehicles. But calling the Karma more refined than the Model S is a stretch, since the Karma just began deliveries, and uses a Chevy Cobalt SS engine to charge an A123 Systems battery pack that is considered inferior to those made by Tesla. The electric motors are off-the-shelf units as well, unlike the custom Tesla units.

Francesco

2006 fortwo cdi pulse cabrio phat red/silver|heated leather|PLUS|sound||mods OE cruise|Cabriotec heated glass rear window|custom red silicone cdi TIK|all-LED EU lamps front & rear|OE mud-flaps|colour-coded|garage opener|wiper nozzle|SGII|remap|spin-on oil filter|K&N air filter|RS grille|Painted smart Mods de Dion caps|Hella Micro DE fogs|MDC sucker|R1 Concepts brakes|TK's restrictor mod|LED angel eyes|stainless EGR delete|RS paddles|HEL braided brake lines|Bilstein B14 PSS coil-overs|PowerFlex bushings|Michalak 16" wheels||coming up Blindy|torque damper|Morimoto||


#7 gordo.bernard

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Posted 04 August 2011 - 05:48 PM

I think this has been well researched by corporations and shade tree mechanics as well. http://blogs.wsj.com...e-electric-car/ http://evmaine.org/h...v_trailers.html

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  • Acp_tzero_DSC00467.jpg

Edited by gordo.bernard, 04 August 2011 - 05:52 PM.


#8 Henry

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Posted 04 August 2011 - 07:43 PM

Wouldn't the on-sale-now Chevy Volt be the standard bearer in the plug-in hybrid segment, beating the Karma to market by a full six months? The Tesla Roadster and Model S are fully-electric vehicles. But calling the Karma more refined than the Model S is a stretch, since the Karma just began deliveries, and uses a Chevy Cobalt SS engine to charge an A123 Systems battery pack that is considered inferior to those made by Tesla. The electric motors are off-the-shelf units as well, unlike the custom Tesla units.

Sorry the model S is a giant leap forward from the roadster, take my comments with a grain of salt for I have never driven either one. I was however under the impression that the volt only charged by plug and that the conventional internal combustion engine propelled the car after the batteries were depleted but did not recharge the batteries. Alan

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#9 swl

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Posted 05 August 2011 - 07:47 AM

This has already been achieved in the Fisker Karma. http://www.fiskerautomotive.com/#!/kar...ions/powertrain This is quite comparable to the tesla but more refined. Alan

Nice car! To be exact though it is more like a luxury Volt than a Tesla - The Tesla is is a Plug-In EV - Fiskar has an onboard motor/generator for extended range. It will be interesting to see which manufacturer woes the buyers. The cars look very similar. Wikipedia notes that Fisker was fired as the designer of the Tesla S for 'substandard work'. Tesla tried to sue him because he incorporated the best of the Tesla S design into the Kharma. Odd to think of Tesla as the establish vendor and Fisker as the upstart! It seems that the smaller more agile companies are bringing better designs to market faster and with less investments than the big three. Will Tesla be the new GM? Interesting times ahead.

#10 tolsen

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Posted 05 August 2011 - 12:21 PM

Toyota Rav4EV with Rav Long Ranger Hybridizing Trailer.

#11 gordo.bernard

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Posted 06 August 2011 - 06:20 AM

Why would the wheels on it steer?

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#12 tolsen

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Posted 06 August 2011 - 06:45 AM

Why would the wheels on it steer?

Because the trailer is not visible to driver due to its small size perhaps?
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#13 Graham

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Posted 06 August 2011 - 03:52 PM

As an aside, Toyota announced that they will build the new all-electric RAV here in Ontario. It apparently uses the Tesla power train and will have a range of about 160km (without trailer!)It would be great if the EVs were supplied with a portable generator that could provide enough charge if batteries run out. If it could give you another say 20km, it would save a tow-truck fee!
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#14 Francesco

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Posted 06 August 2011 - 04:14 PM

I thought it was being built at the former NUMMI (Toyota/GM) plant in Fremont, CA (now known as the Tesla Motors Factory) by Tesla.

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#15 gordo.bernard

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Posted 06 August 2011 - 04:45 PM

Because the trailer is not visible to driver due to its small size perhaps?
Posted Image



It still doesn't make sense yet. He has a lens to see the trailer.

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#16 RedDog

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Posted 06 August 2011 - 05:25 PM

The article linked above mentions this:

The micro trailer incorporates intelligent "BackTracker" steering which automatically maintains trailer-to-vehicle alignment during backing to avoid jack-knifing.


Edited by RedDog, 06 August 2011 - 05:26 PM.

I'd rather be dragging a club than clubbing in drag

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#17 tolsen

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Posted 06 August 2011 - 10:40 PM

It still doesn't make sense yet. He has a lens to see the trailer.

Reversing a short trailer is particularly difficult, even for those with experience.

#18 Graham

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Posted 07 August 2011 - 11:37 AM

I thought it was being built at the former NUMMI (Toyota/GM) plant in Fremont, CA (now known as the Tesla Motors Factory) by Tesla.

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