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Motor contoller for an electric car - Page 2 — Parallax Forums

Motor contoller for an electric car

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  • SteveWSteveW Posts: 246
    edited 2006-03-30 17:09
    >Why don't we all drive Stanley Steamers? Quite simply, the pressure relief valve would fog your glasses and take all the wrinkles out of your tuxedo on a trip downtown.

    Setting new records for offtopicness, may I present
    http://www.steamcar.co.uk/ - aiming for the land steam speed record. Splendid stuff!

    Steve
  • moomoo Posts: 5
    edited 2006-03-31 05:11
    That was an interesting article but its kind of a straw man argument as far as I am concerned. It uses the example of a 500 lb battery pack which is very close to what I would have with a 120v system. Then it mentions what would happen if you double or triple the weight. That is crazy! Of course you cannot just add batteries forever and expect the performance to increase in porportion. I never suggested doing anything like that. I also never mentioned relying on amp hour figures either. I relied on the advice and experience of a guy who has been selling motors and controllers for electric vehicles for years. I've also read books on EVs. I am by no means an expert but I do know they are out there and they work. They may not be right for everyone but I think it would meet my needs very well. I will also keep my jeep cherokee for driving with my family. One commuter vehicle and one normal car.
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2006-03-31 06:26
    Moo,
    If you have ever tried to start a car in a Detroit winter, you have observed that the capacity of a battery is related to an optimal temperature environment. Once you get started, gasoline provides for its own thermal environment. But, the battery at 0 degrees Centigrade is far less, maybe onle 15-20% of optimal. Where are you going to get the heat to warm it up? You can only add weight in significant multiples.

    The Stanley Steamer may seem to be an aside, but steam energy is very much a part of the history of automotive development. The great intrigue of steam energy is that it has an infinite capacity to store energy [noparse][[/noparse]also an infinite capacity to explode]. You may not be fully aware of how it has been an integral part of transportation, but it has.

    An even thermal nuclear reactors use steam energy to transfer the heat to the turbines to produce our wealth of electricity.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
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