Vancouver Elec Vehicle Assn EVent June 11, bring dead ebike batteries Hundreds of electric vehicles, including automobiles, neighborhood electric vehicles,...
Hmmm. This link from the article has more meat: http://www.oilendgame.org/ExecutiveSummary.html Primary problems: 1. The American people are, by and large,...
Well, that's one way of looking at it. My attitude is that the 2005 dollar price for a barrel of oil in 73-80 was around $270. Roughly the American economy was...
Just wanted to say THANK YOU for this link. ... oil use 17% ... Persian Gulf ... from the ... decade. ... stopping ... transportation ... produce ... policy ...
NEW CAR UNDER DEVELOPMENT I'm studying industrial design right now. I'm spearheading a new project. We're developing an affordable car, ultra-energy...
for high torque and efficiency, I'd have gone with a diesel. Mass- specific and volume-specific power tend to be worse with a diesel than with a gasoline...
Uh... I realize I should have said HP, not torque. Sorry all! Haven't made calculations yet for exact needed power... but to give an order of size, I estimate...
You want to keep the weight of the wheels down. The suspensions work better with lighter wheels (less inertia, sticks better to the road). Wheels and...
... work ... road). Got any objective data on that? ... Really. Weigh a 13" to 16" steel wheel. Weigh an aluminium wheel of the same size. Let me know what you...
Engines tend not to be at their most efficient when running flat out - a typical petrol engine is most efficient when running at half its redline speed, at...
Greg, Why would they be the same? Bicycle aluminum rims are about half the weight of steel equivalents, and stronger when yuo get the better heat treated ones....
perhaps useful: http://www.wheelweights.net/ ... equivalents, and stronger when yuo get the better heat treated ones. ... resistance, that aluminum wheels...
Timmi, I really dont want to be negative, but I have a few comments. Rumours are that VW is stopping production of the Lupo. Maybe you dont know this one in...
Thanks for the good information. I am not a metallurgist nor a mechanic, keeping the weight of non- suspended mass down is simply common sense to me. Bugatti...
So under all the bluster you have no concrete information. Thought so. That's OK, I realise that not everyone has access to real information, I'm just pointing...
I don't want to seem negative, so the remarks given are just my opinion, based of my understanding of the vehicle problem we humans face. For the last 2 years...
I like the idea of the brakes being attached to the other end of the joints... I was thinkin of that... But I think I found the best way to get rid of dead...
Hi Ed, Apparently, you will only recover, on average, a 5% fuel savings when using the electric motor to recover energy when braking, and to help send that...
Convert the Ego to a 30MPH electric scooter, 15-minute fast charge The Ego-2 costs only $1,100 retail. It can be modded to 30MPH with 36 volts and chain-drive...
Timm, In city driving, recovering braking energy is the best way to save energy. That is why the city mileage figure is less than the highway rating. Even when...
Yea, Bugatti thought of that too. To explain why his cars had such poor breaks, he use to reply: there are drivers that stop in front of obstacles, and drivers...
... Engine torque&speed vs time data exists. The ECUs on at least some (if not all) modern buses and trucks log this information and it can be downloaded by a...
... using the electric motor to recover energy when braking, and to help send that back in to help with acceleration. Why? Well, thinnk of it this way: we...
Well, I think I'm recalling Greg using the 5% braking figure for combined cycle driving. I'm not sure it means 5% fuel savings, but rather about 5% of driving...
Isaac, Thanks for the information offer but this is not the information I need. The information you get from the ECU is the engine power not the power where...
The power output estimate from the ECU is probably accurate to about 10% or better, in fact if you are operating closed loop it is probably a lot better than...
Mass kg 1362 Cd 0.2900 A m^2 2.4787 Crr 0.0116 FTP75 drive cycle. All figures given are the average over the entire 30 minute cycle. For the above car, I get...
I heard that the german Golf-E model uses a flywheel to recover some of this energy. The reason I brought up the average 5% savings, is that this is only one...
