EV digest 6968
EV Digest 6968 Topics covered in this issue include: 1) RE: Would you build if you could buy? by "Dave Davidson" <[EMAIL PROTECTED]> 2) Re: Sunrise Project by "jerryd" <[EMAIL PROTECTED]> 3) Re: Infrared coating and airsuspension packagesSubjects for faqs by GWMobile <[EMAIL PROTECTED]> 4) Re: EV air conditioning, how to connect motor? by Danny Miller <[EMAIL PROTECTED]> 5) Re: Infrared coating and airsuspension packagesSubjects for faqs by GWMobile <[EMAIL PROTECTED]> 6) Re: EV air conditioning, how to connect motor? by "Dave Davidson" <[EMAIL PROTECTED]> 7) Re: n00b in your midst by Jeff Shanab <[EMAIL PROTECTED]> 8) Sailboat Conversion by Jeff Shanab <[EMAIL PROTECTED]> 9) Re: [ElectricMotorcycles] Electric Freccia by "Mark Eidson" <[EMAIL PROTECTED]> 10) Re: Weird Questions by "Rob Hogenmiller" <[EMAIL PROTECTED]> 11) Re: Controler space by Jeff Shanab <[EMAIL PROTECTED]> 12) Re: Building A Motor by "Joseph T. " <[EMAIL PROTECTED]> 13) Re: Controler space by dale henderson <[EMAIL PROTECTED]> 14) Re: EV air conditioning, how to connect motor? by Jeff Shanab <[EMAIL PROTECTED]> 15) Re: Nobody wants my money.. (rant for the day) by "Loni" <[EMAIL PROTECTED]> 16) Re: Controler space by Steven Ciciora <[EMAIL PROTECTED]> 17) Re: Cheap by Ian Hooper <[EMAIL PROTECTED]> 18) RE: Infrared coating and airsuspension packagesSubjects for faqs by Jeff Shanab <[EMAIL PROTECTED]> 19) RE: Building A Motor by Jake Oshins <[EMAIL PROTECTED]> 20) Pump for Water Cooling by Jack Murray <[EMAIL PROTECTED]> 21) RE: Cheap by "Claudio Natoli" <[EMAIL PROTECTED]> 22) Motor weight by Dan Frederiksen <[EMAIL PROTECTED]> 23) Re: EV air conditioning, how to connect motor? by <[EMAIL PROTECTED]> --- Begin Message --- I would love to be able to buy a factory highway capable BEV. I would want a 5 passenger car with at least a 100 mile range, preferably further. Something like the RAV4 EV would be a good fit, but I can't justify $50,000 for a used one, especially when I can't get service on them locally (there are 2 that I know of in my state (Maryland). If I could get a new BEV for $30-35K, I would buy one. I cannot do a conversion at my house (already got in trouble with the county for working on my car in my driveway). Also, the batteries needed to get this kind of performance are not available to hobbyists, and apparently are not even available to small manufacturers, but only (maybe) to large manufacturers who could place orders for millions of batteries. I think there will always be those who will roll their own, just as there will always be those who want to customize and hop up ICEs. Look at some of the NEDRA racers. A production EV could never do what those guys are doing. There will also be those who will do conversions for cheap transportation, and wrecked production EVs will be worth their weight in parts. Dave Davidson Glen Burnie, Maryland From: "damon henry" <[EMAIL PROTECTED]> Reply-To: ev@listproc.sjsu.edu To: ev@listproc.sjsu.edu Subject: Would you build if you could buy? Date: Thu, 28 Jun 2007 21:56:57 + With the recent threads of people wanting to build their own hybrids I can't help but ask myself why? This is as I look out at my 2001 Honda Insight that I bought brand new and still love. I always wonder why these hybrid folks want to roll their own when they can just go out and buy one straight from the factory. I know the main reason is because they want to build a plug in hybrid. Still, I am doubtfull that they can come up with something anywhere close to as good as the hybrids that can't be plugged in but can be purchased at a dealers lot. It leads me to the question of what you would do if you could buy a factory EV. Let's say it was like the hybrids that you can buy now that come at a premium. I think the hybrid system on a Honda usually costs about $4000. It's hard to say exactly because they usually throw in a bunch of upscale options as well to kind of hide some of the cost, but let's go with that marketing model. If you could buy a factory built Civic, Accord, Camary, S10 truck etc... that was just like it's ICE counterpart, but you had to pay a premium for, what would you buy, and how much more would you be willing to pay? Would that be the end of EVs as conversions, or would the type of people that haunt this list rather continue to roll their own? I know for me, I would love to have a nice mid size sedan and would gladly pay up to a $10,000 premium, but only if it had 150 - 200 mile range. Although I certainly don't need this much range everyday, it is a reflection of some of the longer trips I would still want to be able to take. If it only had a 50 - 100 mile range that would make it more
EV digest 6967
EV Digest 6967 Topics covered in this issue include: 1) RE: Nobody wants my money.. (rant for the day) by "Alan Brinkman" <[EMAIL PROTECTED]> 2) Re: VS: Re: Cheap by "jerryd" <[EMAIL PROTECTED]> 3) Re: Wayland Invitational ramblings (Re: Nobody wants my money.. ) by "damon henry" <[EMAIL PROTECTED]> 4) Re: Nobody wants my money.. (rant for the day)and More by Dave Cover <[EMAIL PROTECTED]> 5) Wire Inductance? by "Joseph T. " <[EMAIL PROTECTED]> 6) Re: Wire Inductance? by Christopher Robison <[EMAIL PROTECTED]> 7) Re: Wire Inductance? by "Joseph T. " <[EMAIL PROTECTED]> 8) Would you build if you could buy? by "damon henry" <[EMAIL PROTECTED]> 9) Re: Wire Inductance? by Christopher Robison <[EMAIL PROTECTED]> 10) Re: Cheap by "Roger Stockton" <[EMAIL PROTECTED]> 11) RE: Cheap by "Roger Stockton" <[EMAIL PROTECTED]> 12) Re: Wire Inductance? by "Joseph T. " <[EMAIL PROTECTED]> 13) RE: DC to DC input circuit breaker trips by "Roger Stockton" <[EMAIL PROTECTED]> 14) RE: Nobody wants my money.. (rant for the day) by "Roger Stockton" <[EMAIL PROTECTED]> 15) Re: Cheap by "Shaun Williams" <[EMAIL PROTECTED]> 16) Re: Sunrise for a Force? by "Peter VanDerWal" <[EMAIL PROTECTED]> 17) RE: I have an IDEA! by "Peter VanDerWal" <[EMAIL PROTECTED]> 18) Building A Motor by "Rob Hogenmiller" <[EMAIL PROTECTED]> 19) Re: Weird Questions by "Peter VanDerWal" <[EMAIL PROTECTED]> 20) Re: Would you build if you could buy? by <[EMAIL PROTECTED]> 21) Re: Sunrise for a Force? by "jerryd" <[EMAIL PROTECTED]> 22) RE: n00b in your midst by Cor van de Water <[EMAIL PROTECTED]> 23) Hybrids done right, Re: Would you build if you could buy? by "jerryd" <[EMAIL PROTECTED]> 24) Re: Infrared coating and airsuspension packagesSubjects for faqs by "Tom Carpenter" <[EMAIL PROTECTED]> --- Begin Message --- Ian, E-mail Advanced DC with your inquiry. I received a nice reply and all I wanted was motor specs and data, and I bought my Advanced DC motor from a third party, not from them or their dealer. I received a reply in a few days. I read a book by an author who travels and writes, and this book was on Australia. What a magnificent country, I could not put the book down! Alan Brinkman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Hooper Sent: Thursday, June 28, 2007 1:50 AM To: ev@listproc.sjsu.edu Subject: Nobody wants my money. (rant for the day) So over the space of the last week or so I've been trying to buy some motors and batteries. Who'd have thought it'd be so hard?! ThunderSky.. Trying to order 40x 160Ah LFPs for the MX5. I emailed my contact (Brandon), no reply. Used their online order form, no reply. Phoned them, it rang out and hung up on me. *sigh* Advanced DC.. I was hoping to talk to them about becoming a reseller for their motors in Australia, since they're very under-represented over here. Currently there just one guy over east (~2000 miles from here). So I phoned them, left a voice mail, no reply. Used their online contact form, no reply. Phoned them and left another voice mail, no reply. It's a pity neither of these companies have much competition - maybe that's why they don't worry too much about customer service.. End rant, thank you for listening ;) -Ian --- End Message --- --- Begin Message --- Hi Jukka and All, - Original Message Follows - From: jukka <[EMAIL PROTECTED]> : >> On 6/28/07, Jukka <[EMAIL PROTECTED]> wrote: >>> Managing a 200 ah cell is not that expencive. With 3kw >>> charger a complete system is about 20% of the whole >>> cost. And when integrated in to the cell structures in >>>mass production even much less. >>> I could estimate that ev hobbyist can get away with 10 >>> 000 USD with already boxed and complete system in 2009 >>> (180v200ah+bms+3kw charger). For now it's available >>> for beta testers and some vehicles are on the roads >>> already. We make 1 system/month for evaf.org members. >Current setups are 76,8v350ah for Elcats. I know at least >>> one user who is in silent mode on the list. That must be one interesting Elcat!! I too would like to hear about it. As it should get under 75wthrs/mile, the usable range would be 150+ miles! As a 77vdc pack setup at 350amphr sounds real good to me, how much does it weigh, cost, peak amp? For a 200amphr version? I assume you can't sell it here. Who is the US rep and will you sell yours thru him? Thanks, Jerry Dycus --- End Message --- --- Begin Message --- I knew you were coming and threw that line in especially for you, although the new guy from Alaska is also welcome. I look forward to seeing you. I have
EV digest 6965
EV Digest 6965 Topics covered in this issue include: 1) Sunrise Project by JS <[EMAIL PROTECTED]> 2) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Mark Eidson" <[EMAIL PROTECTED]> 3) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Loni" <[EMAIL PROTECTED]> 4) Re: Brush timing advance, nothing new :-) by "Bob Rice" <[EMAIL PROTECTED]> 5) RE: EV air conditioning, how to connect motor? by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 6) RE: Infrared coating and airsuspension packagesSubjects for faqs by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 7) Re: Sunrise Project by "Bob Rice" <[EMAIL PROTECTED]> 8) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Mark Eidson" <[EMAIL PROTECTED]> 9) RE: Infrared coating and airsuspension packagesSubjects for faqs by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 10) VW Rabbits-conversion suggestions by Gordon G Schaeffer <[EMAIL PROTECTED]> 11) Re: Infrared coating and airsuspension packagesSubjects for faqs by Andrew Letton <[EMAIL PROTECTED]> 12) Re: Sunrise Project by Lee Hart <[EMAIL PROTECTED]> 13) Best Place for Trojans in NorCal? by "(-Phil-)" <[EMAIL PROTECTED]> 14) Re: Cheap by Victor Tikhonov <[EMAIL PROTECTED]> 15) Wayland Invitational ramblings (Re: Nobody wants my money.. ) by "damon henry" <[EMAIL PROTECTED]> 16) Re: Any Rabbit EV owners here? by Bob Bath <[EMAIL PROTECTED]> 17) Re: VW Rabbits-conversion suggestions by "Bob Rice" <[EMAIL PROTECTED]> 18) Re: Infrared coating and airsuspension packagesSubjects for faqs by Danny Miller <[EMAIL PROTECTED]> 19) Sunrise for a Force? by Todd Martin <[EMAIL PROTECTED]> 20) Re: EV air conditioning, how to connect motor? by "Jim, Saturn Guy" <[EMAIL PROTECTED]> --- Begin Message --- Bob Rice wrote: "Anyhow, IF ya wanna help the cause, send Lee some money! It has been mostly Lees dime on this project. I'm tooting his horn, here. He's too much of a gentleman to ask. " * It's easy! Just send your donation to [EMAIL PROTECTED] via PayPal. Try 10% of what your EV saves you in gasoline. That's my minimum! Lee's contributions to this list have more value than that! --- End Message --- --- Begin Message --- Thanks. The weight is very low and is hanging below the suspension. It works better than I thought it would. The suspension geometry prevents dive on braking. Most everything is aluminum. I need to weigh it but my wife won't let me use the bath room scale.300 for battetres, 80 for the motor, 170 for everything else, frame, wheels, controller. air compressor. Charger not on bike. me On 6/28/07, Alan Brinkman <[EMAIL PROTECTED]> wrote: Mark, Cool ride. I can see lots of thought and time went into your frame. How do you get the single air suspension to stay balanced, both front and rear at ride height? Is there a spring or two that assist at traveling height? How did you keep the curb weight so reasonable? Does the aluminum frame contribute a lot to that? Very nice! Alan Brinkman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Eidson Sent: Wednesday, June 27, 2007 5:46 PM To: ev@listproc.sjsu.edu Subject: Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) Following similar logic I have arrived at this design: http://www.austinev.org/evalbum/preview.php?vid=1231 Hopefully I will get the 15 mi range at a reasonable DOD. I won't be going over 50MPH often or for long stretches. Need to get it on the licensed and on the road and find out. me On 6/27/07, Peter VanDerWal <[EMAIL PROTECTED]> wrote: > > > I think I understand now. Regardless of pack voltage and gearing, when I > > demand acceleration the system has to generate X watts. Once the limits of > > pack voltage are reached, X watts are achieved by increasing amperage. > > Right? > > Correct. > > > When I look around, though, there doesn't seem to be a one-size-fits-all > > solution for every application. > > Absolutely, there is no solution that fits every problem. Vehicles, > especially EVs are a compromise. Do we want better handling or more > comfort? Lower weight and drag or more interior space? > Multispeed transmission, or more batteries? > > > Most of the respondents here have suggested that direct drive is the way > > to go. > > with a motorcycle? Abolutely. The trade off is that without a multispeed > transmission, the motor has to develope more torque and/or RPM to give the > same performance. > With a car this means larger or more motors and more powerful controllers. > It means the same thing with a motorcycle, however motorcycles are > smaller to begin with so using a normal car size motor/controller alrea
EV digest 6964
EV Digest 6964 Topics covered in this issue include: 1) RE: Weird Questions by keith vansickle <[EMAIL PROTECTED]> 2) Hawker "SBSC11" Batteries - Good Bad or Ugly ? by Michael Barkley <[EMAIL PROTECTED]> 3) RE: reed switch application by "Michaela Merz" <[EMAIL PROTECTED]> 4) RE: Hawker "SBSC11" Batteries - Good Bad or Ugly ? by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 5) Re: Potential BMS solution for lithium-ion packs. by Cory Cross <[EMAIL PROTECTED]> 6) Re: EV digest 6963 by Daniel Eyk <[EMAIL PROTECTED]> 7) Re: Nobody wants my money.. (rant for the day)and More by "Bob Rice" <[EMAIL PROTECTED]> 8) Re: EV air conditioning, how to connect motor? by "Brian Pikkula" <[EMAIL PROTECTED]> 9) Re: DC Circuit breaker by <[EMAIL PROTECTED]> 10) Re: Cheap by jukka <[EMAIL PROTECTED]> 11) Infrared coating and airsuspension packagesSubjects for faqs by GWMobile <[EMAIL PROTECTED]> 12) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Loni" <[EMAIL PROTECTED]> 13) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Loni" <[EMAIL PROTECTED]> --- Begin Message --- Rob, The reason all hybrids use the electric motor for acceleration not cruising is that most of your heavy energy requirements are during acceleration and an electric has lots of low end torque but uses too much energy to keep going fast. I drive an Insight. I use 10 times as much energy going from stop to 30 mph as I do cruising at 70 mph. as a matter of fact when I used to commute 100 mi a day at 70 mph I got 65 to 70 mpg but now that I no longer do that commute and now do almost all city stop and go I get 50 to 55 mpg... I Also have a pure electric and if I keep my max speed to 35mph i get almost 50% more range than if I try to drive at 60 or higher. My experience is that electric motive power is better a low speed not hi... kEVs --- "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> wrote: > Rob, > > Your idea would work but I think you would not be > able to > maintain 60mph for very long. You would need a 156V > or better system > with a lot of AH to go any appreciable distance. > How about going the > other way around? Use the electric drive for your > in town driving and > the gas engine for highway speeds? To do this on a > focus all you would > have to do theoretically is replace the back axle > with a ford mustang > rear end. Couple the pumpkin flange to a pulley and > mount the electric > motor to the axle and attach a chain system between > the two. That way > you can work out optimal gearing to achieve at least > 45 mph in direct > drive. Netgain technology has worked out a > controller that makes it > possible to drive an electric motor while the engine > is running for a > parallel motor hybrid vehicle. Currently their > system is only for > trucks but there are tons of OBD2 interfaces out > there that could give > you the LOD (engine load) input or speed input > necessary to use the > electric motor. There are also plenty of people who > are familiar with > the CAN protocol to help you program a system that > would ask the gas > engines ECU the right questions. That way you can > have Full electric > (gas engine in neutral), full gas, electric assist > (hybrid mode). I > hope this helps. > > jody > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Rob Hogenmiller > Sent: Thursday, June 28, 2007 8:04 > To: EV Discussion > Subject: Weird Questions > > I thought I might take a moment to explain the basis > of a few questions > I've asked, as they might seem a little weird. > > What I'm hoping to build is an EV-Hybrid. > > The Concept. > Use an existing gas powered vehicle (in my case a > 2007 Ford Fusion) to > propel the vehicle up to 60mph (legal highway speed > in my state). > > Once reaching 60mph, flip the electric motor on to > maintain 60mph. > > So basically I'm trying to learn the terminology and > also understand > what kind of components I would need to accomplish > this project. > > Currently I'm thinking of something very simple a on > off switch no > controller, and cut off switch (not sure if that is > the right term) when > the brakes are applied, basically like the way > cruise control works. I > would then set my cruise control on the car at > 55mph, or whatever to > kick in if the electric motor became under stress. > > This should bump my gas mileage very high, I'm > hoping for well over > 100mpg. > Obviously this type of setup would not benefit all, > but would be a nice > setup for a commuter that has a fair share of > highway > traveling/commuting. > > You can see some of the things I'm learning/progress > at www.7change.com > > ___
EV digest 6963
EV Digest 6963 Topics covered in this issue include: 1) Re: Sailboat Conversion by Dan Frederiksen <[EMAIL PROTECTED]> 2) RE: Weird Questions by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 3) RE: reed switch application by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 4) RE: reed switch application by "Phil Marino" <[EMAIL PROTECTED]> 5) Typical EV Motor by "Rob Hogenmiller" <[EMAIL PROTECTED]> 6) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by Tom Parker <[EMAIL PROTECTED]> 7) Re: Controler space by "TrotFox Greyfoot" <[EMAIL PROTECTED]> 8) Re: S10 transmission by [EMAIL PROTECTED] 9) Re: Chains and belts (was Re: ft-lbs or lbs-ft by "TrotFox Greyfoot" <[EMAIL PROTECTED]> 10) Re: Cheap by Jeff Shanab <[EMAIL PROTECTED]> 11) RE: Typical EV Motor by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 12) n00b in your midst by "John Labrey" <[EMAIL PROTECTED]> 13) RE: n00b in your midst by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 14) RE: n00b in your midst by "John Labrey" <[EMAIL PROTECTED]> 15) Re: Weird Questions by Lee Hart <[EMAIL PROTECTED]> 16) Re: Chains and belts (was Re: ft-lbs or lbs-ft by Jeff Shanab <[EMAIL PROTECTED]> 17) RE: n00b in your midst by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 18) Re: Cheap by Tim Humphrey <[EMAIL PROTECTED]> 19) Re: Sailboat Conversion by "Mark Ward" <[EMAIL PROTECTED]> 20) RE: EV air conditioning, how to connect motor? by Christopher Robison <[EMAIL PROTECTED]> 21) Re: Sailboat Conversion by "jerryd" <[EMAIL PROTECTED]> 22) RE: EV air conditioning, how to connect motor? by Christopher Robison <[EMAIL PROTECTED]> 23) RE: EV air conditioning, how to connect motor? by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 24) Re: Nobody wants my money.. (rant for the day) by Ian Hooper <[EMAIL PROTECTED]> 25) RE: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Alan Brinkman" <[EMAIL PROTECTED]> --- Begin Message --- you could give it a lead acid keel then : ) keep the batteries in a custom pod downthere and serve a dual purpose :) --- End Message --- --- Begin Message --- Rob, Your idea would work but I think you would not be able to maintain 60mph for very long. You would need a 156V or better system with a lot of AH to go any appreciable distance. How about going the other way around? Use the electric drive for your in town driving and the gas engine for highway speeds? To do this on a focus all you would have to do theoretically is replace the back axle with a ford mustang rear end. Couple the pumpkin flange to a pulley and mount the electric motor to the axle and attach a chain system between the two. That way you can work out optimal gearing to achieve at least 45 mph in direct drive. Netgain technology has worked out a controller that makes it possible to drive an electric motor while the engine is running for a parallel motor hybrid vehicle. Currently their system is only for trucks but there are tons of OBD2 interfaces out there that could give you the LOD (engine load) input or speed input necessary to use the electric motor. There are also plenty of people who are familiar with the CAN protocol to help you program a system that would ask the gas engines ECU the right questions. That way you can have Full electric (gas engine in neutral), full gas, electric assist (hybrid mode). I hope this helps. jody -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Hogenmiller Sent: Thursday, June 28, 2007 8:04 To: EV Discussion Subject: Weird Questions I thought I might take a moment to explain the basis of a few questions I've asked, as they might seem a little weird. What I'm hoping to build is an EV-Hybrid. The Concept. Use an existing gas powered vehicle (in my case a 2007 Ford Fusion) to propel the vehicle up to 60mph (legal highway speed in my state). Once reaching 60mph, flip the electric motor on to maintain 60mph. So basically I'm trying to learn the terminology and also understand what kind of components I would need to accomplish this project. Currently I'm thinking of something very simple a on off switch no controller, and cut off switch (not sure if that is the right term) when the brakes are applied, basically like the way cruise control works. I would then set my cruise control on the car at 55mph, or whatever to kick in if the electric motor became under stress. This should bump my gas mileage very high, I'm hoping for well over 100mpg. Obviously this type of setup would not benefit all, but would be a nice setup for a commuter that has a fair share of highway traveling/commuting. You can
EV digest 6962
EV Digest 6962 Topics covered in this issue include: 1) Re: Chains and belts (was Re: ft-lbs or lbs-ft) by "paul compton \(RRes-Roth\)" <[EMAIL PROTECTED]> 2) Re: Cheap by Tony Hwang <[EMAIL PROTECTED]> 3) Re: n00b in your midst by Dan Frederiksen <[EMAIL PROTECTED]> 4) unsubscribe by John Weber <[EMAIL PROTECTED]> 5) thanks by John Weber <[EMAIL PROTECTED]> 6) Re: ???kWh EV battery pack by "Peter VanDerWal" <[EMAIL PROTECTED]> 7) Re: I have an IDEA! by "Peter VanDerWal" <[EMAIL PROTECTED]> 8) Your "IDEA" of using 4 DeWalt packs by Steve Powers <[EMAIL PROTECTED]> 9) Dead Weight Vs Torque by "Rob Hogenmiller" <[EMAIL PROTECTED]> 10) Re: Dead Weight Vs Torque by "Evan Tuer" <[EMAIL PROTECTED]> 11) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Peter VanDerWal" <[EMAIL PROTECTED]> 12) Air Drag? by "Rob Hogenmiller" <[EMAIL PROTECTED]> 13) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Peter VanDerWal" <[EMAIL PROTECTED]> 14) Re: Dead Weight Vs Torque by "Rob Hogenmiller" <[EMAIL PROTECTED]> 15) Re: Air Drag? by "Peter VanDerWal" <[EMAIL PROTECTED]> 16) Re: Nobody wants my money.. (rant for the day) by Matthew Drobnak <[EMAIL PROTECTED]> 17) Re: Adapter Problem by Bruce Weisenberger <[EMAIL PROTECTED]> 18) Re: Dead Weight Vs Torque by Dan Frederiksen <[EMAIL PROTECTED]> 19) Re: Dead Weight Vs Torque by "Peter VanDerWal" <[EMAIL PROTECTED]> 20) Sailboat Conversion by "Michael Bittle" <[EMAIL PROTECTED]> 21) Re: Dead Weight Vs Torque by "Peter VanDerWal" <[EMAIL PROTECTED]> 22) Re: Air Drag? by Dan Frederiksen <[EMAIL PROTECTED]> 23) Re: Sailboat Conversion by "Peter VanDerWal" <[EMAIL PROTECTED]> 24) Re: Nobody wants my money.. (rant for the day) by Marcin Ciosek <[EMAIL PROTECTED]> 25) Re: Dead Weight Vs Torque by "Phil Marino" <[EMAIL PROTECTED]> 26) Re: Sailboat Conversion by Jim Husted <[EMAIL PROTECTED]> 27) RE: EV air conditioning, how to connect motor? by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 28) Weird Questions by "Rob Hogenmiller" <[EMAIL PROTECTED]> 29) Re: Potential BMS solution for lithium-ion packs. by Rob&Amy Smith <[EMAIL PROTECTED]> 30) RE: Home built hybrid-electrics by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 31) RE: EV air conditioning, how to connect motor? by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 32) RE: I have an IDEA! by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> 33) RE: reed switch application by "Dewey, Jody R ATC COMNAVAIRLANT, N422G5G" <[EMAIL PROTECTED]> --- Begin Message --- > This reminds me to ask: teethed belts don't require as much tension as > V-ones and don't slip. Wonder why they aren't used more widely? Sure, > alternator and A/C compressor don't require exact timing as valves do, > but still, is it just noise and extra expense of teethed belts and > pulleys, or some other technical reasons? > Victor It's mostly the cost. Lowest cost, conventional 'V' or wedge belt. Next lowest; Poly V. More grooves to cut, but quieter, more efficient and less tension needed. Large pulley many not even need grooves (Like Citi-El final drive) and can be run as a flat belt. Toothed belt; pulleys effectively gears with specialised tooth shapes, same production method, but no heat treatment needed. Paul Compton Rothamsted Research is a company limited by guarantee, registered in England under the registration number 2393175 and a not for profit charity number 802038. --- End Message --- --- Begin Message --- Yeah, it is. When I send 10+ amps through it, I can see it turning red, it's almost like a light bulb filament. :) Then it breaks and cools down. I hope that redness doesn't cause any other damage, though. - Tony - Original Message From: Shaun Williams <[EMAIL PROTECTED]> To: ev@listproc.sjsu.edu Sent: Thursday, June 28, 2007 12:15:42 AM Subject: Re: Cheap On 6/28/07, Tony Hwang <[EMAIL PROTECTED]> wrote: > I've done something like using nickel fuses. From testing, I'm using a 0.003" > thick, maybe 1/16" wide piece of nickel battery tab as a 10+ amp fuse (very > very inaccurate "blowing" current!). The cell is rated for max 4 amps > discharge, but they are massively in parallel, so the fuse should work fine. > The tabs are 1/8" wide, I just cut a little bit of it in the middle, so that > the whole tab isn't high resistance. Also my thinking is that by having the > "fuse" part of the tab in the middle, it's farther from the cells, so it will > heat up more on high current draws? > >- Tony Hi Tony, Wow, 3 thou seems awfully thin, eve
EV digest 6961
EV Digest 6961 Topics covered in this issue include: 1) Re: Controler space by Lee Hart <[EMAIL PROTECTED]> 2) Re: Sevcon 128/12V DC/CD (Fixed) by Dave Stensland <[EMAIL PROTECTED]> 3) Re: Brush timing advance, nothing new :-) by "Andrew Kane" <[EMAIL PROTECTED]> 4) Re: Wheel Hub Motors? by "peekay" <[EMAIL PROTECTED]> 5) Re: reed switch application by "Michaela Merz" <[EMAIL PROTECTED]> 6) Re: An Ebay find? by Bill & Nancy <[EMAIL PROTECTED]> 7) DC to DC input circuit breaker trips by Iron Mountain Films <[EMAIL PROTECTED]> 8) Re: Wheel Hub Motors? by Dan Frederiksen <[EMAIL PROTECTED]> 9) Re: I have an IDEA! by "Kaido Kert" <[EMAIL PROTECTED]> 10) Re: ???kWh EV battery pack by Victor Tikhonov <[EMAIL PROTECTED]> 11) Re: Cheap by "Shaun Williams" <[EMAIL PROTECTED]> 12) Re: Cheap by "Shaun Williams" <[EMAIL PROTECTED]> 13) Re: Cheap by Victor Tikhonov <[EMAIL PROTECTED]> 14) Re: To Gear or Not to Gear a Motorcycle (was Manly EV's, etc.) by "Loni" <[EMAIL PROTECTED]> 15) Project #3 is a Lawn Mower by mike golub <[EMAIL PROTECTED]> 16) Re: Make it by Dan Frederiksen <[EMAIL PROTECTED]> 17) RE: DC to DC input circuit breaker trips by "Claudio Natoli" <[EMAIL PROTECTED]> 18) Re: Cheap by Victor Tikhonov <[EMAIL PROTECTED]> 19) Re: VS: Re: Cheap by "Shaun Williams" <[EMAIL PROTECTED]> 20) Re: Cheap by Victor Tikhonov <[EMAIL PROTECTED]> 21) Re: Chains and belts (was Re: ft-lbs or lbs-ft by Victor Tikhonov <[EMAIL PROTECTED]> 22) Re: AGM vs Gel by Victor Tikhonov <[EMAIL PROTECTED]> 23) Re: Cheap by "Shaun Williams" <[EMAIL PROTECTED]> 24) Re: AGM vs Gel by Victor Tikhonov <[EMAIL PROTECTED]> 25) RE: AGM vs Gel by Mike Willmon <[EMAIL PROTECTED]> 26) Nobody wants my money.. (rant for the day) by Ian Hooper <[EMAIL PROTECTED]> 27) Re: Nobody wants my money.. (rant for the day) by Dan Frederiksen <[EMAIL PROTECTED]> 28) Re: ???kWh EV battery pack / Gel vs. AGM / small vs. big battery by Markus Lorch <[EMAIL PROTECTED]> 29) RE: Nobody wants my money.. (rant for the day) by Mike Willmon <[EMAIL PROTECTED]> 30) Re: DC to DC input circuit breaker trips by "Evan Tuer" <[EMAIL PROTECTED]> 31) n00b in your midst by "John Labrey" <[EMAIL PROTECTED]> --- Begin Message --- Phelps wrote: According to the Internet site I just came from. http://www.newton.dep.anl.gov/askasci/eng99/eng99134.htm Welding in space is not possible with current unless you provide a gas that can start a arc... No; this is not the case. At the breakdown voltage between the two metals, the electric field strength is high enough to rip electrons loose from the metals themselves. The electrons form the "gas" that carries the current from one to the other. The electrons slam into the positive side, giving up their kinetic energy and causing major heating at the point of contact. When the positive metal gets hot enough from this, positive metal ions start boiling off, and become a second "gas" to carry charge in the opposite direction. These positive ions bombard the negative side, causing it to heat up as well. Anyone who has used high power vacuum tubes has seen this effect. When you overload the tube, it can arc over between cathode and plate, heat them to incandescence, and they will melt and weld. With this same thought a controller switch sealed in a vacuum would have no arc... Yes, it will (see above). In fact, the breakdown voltage in a vacuum is *lower* than it would be with air. Air is a better insulator than a vacuum. However, air contains oxygen. Once you do strike an arc in air, the oxygen erodes the metal very quickly -- much quicker than in vacuum. And as far as noise I am sure that the arch would be a good part of the noise. Do you mean acoustic noise (the "clack" of a contactor pulling in)? This is purely mechanical; a contactor is just as loud with no current flowing as it is at full load. Or do you mean electrical noise (as in RF interference)? This is always present with contacts, regardless of whether there is air, vacuum, oil, or anything else between them. The electrical noise is caused by the sudden (nearly instantaneous) change in voltage and current as the contact opens and closes the circuit. -- Ring the bells that still can ring Forget the perfect offering There is a crack in everything That's how the light gets in--Leonard Cohen -- Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net --- End Message --- --- Begin Message --- Thanks for the tip, Jeff. It's working now that I replaced the power MOSFETS with new ones (~$30 delivered), changed out the open "R2" resistor with a good one, and replaced the blown on indicator lamp. -Dave Jeff
