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----- Original Message -----
From: "Bob Rice" <[email protected]>
To: <[email protected]>
Sent: Sunday, October 07, 2007 2:33 AM
Subject: Fw: [EVDL] Open source controller design


>>> Lee Hart wrote:
>>>
>>>>I *have* built controllers! Most other parts of EVs as well (chargers,
>>>>DC/DC converters, instrumentation, battery managment systems, etc.)!
>>>>
>>>>
>>> then why haven't you made them public?
>>>
>>> Dan
>>>
>>> ___Gees! Louise!! I Mean Dan<g>! Lee is so damn busy working on other
>>> stuff. Bat Regs, other projects, to put food on his table as he is a
>>> family guy. Not to mention trying as time and money permits, to get the
>>> Sunrise into a car, kit or whatEVer to get it on the road.As you
>>> controller do it yurself wannabees, it isn't easy. I talked to Lee about
>>> it long an' dragged out driving with Lee to Fla to Tow back to MN the
>>> Sunrise Body ,last year. I'm NOT an EV electronic geru, but just asked
>>> questions as you are. The Devil is in the DETAILS. You need to make a
>>> failsafe control board to run the Heavy Duty electrical stuff, which you
>>> can get out of a catalogue. This is stock industrial electronics. YOU as
>>> Electrical genious, gotta suit down and THINK of what EVer could go
>>> wrong, failure mode. So it will"Scram" the controller; Like IF the Go
>>> pedal is pressed down when you key on? So the damn car doesn't take off!
>>> IF the Igbits or whatEVer yur using, decide, or mis -comuntate, IF that
>>> is the right term? lock ON and away you go, with direct drive!
>>> Embarrising in a parking lot! Great lawsuit stuff!I had Lee trapped in
>>> the CAR, no escape<g>!It's a looong way from Tampa to St Cloud
>>> MN(Sartell).They sorta blend together.
>>
>> I used to run Generous Electric E-60 locomotives, built in the 70's,
>> they used to "Lock on" now and again,your guess, we engineers got pretty
>> darn fast at dropping the pantograph, and spinning wheels, that woulda
>> turned Wayland green with envey! Of course these lokies wern't in the
>> general public's hands. Good Thing! We "drivers" lived with this quirk,
>> but G.E. Shoulda FIXED that issue,early on, but like Ford with the
>> flaming gas tanks in the Pintos' it was cheeper to pay a few burned
>> people off than FIX them! The gas tanks I mean<g>!We used to be glad IF
>> the E-60 made a trip WITHOUT something going haywire!Giving rise to our
>> service mark; "Getting Halfway there is Fun" Apologies to Cunard
>> Lines<g>!
>>
>> Point I'm making, think of ALL the possable failures, and build that
>> board to "Think " for you, shut things down as needed. Oh it can be done,
>> not denighing that, just isn't easy, ask Otmar.Well, I take that back,
>> DON'T ask Otmar! He's pretty godamn BUSY, at this point. HE did the
>> engineering. Hell! Why should he just give himself away. Does Toyota
>> publish the design details of the Prius?How deep are yur pockets? Ya BUY
>> the tech, that SOMEBODY spent sleepless nights designing. Dan, what do
>> YOU do for a living? I'm not meaning to diss you. Are you an EE? A
>> plumber, Carpenter, Bus or truck driver? You wouldn't expect your
>> employer to say" just drive the next few runs for me for nothin', truck's
>> out there ready, or build somebodies deck, here's the wood, YOU put it
>> together . "Bus is out at dock 7, fueled up, drive it to Sandy Eggo" and
>> not pay ya the miles that the contract with the UTU sez you will get. IF
>> it is a Union outfit?
>>
>> OK I'm getting carried away as I often do with Transportation stuff,
>> but in defence of Lee. He has gone WAY beyond the call of duty, as to
>> giving out electrical info. You would hafta pay big bux to a electrical
>> consulting ferm, for his expertise. He is only one man, a very human and
>> lovable guy, when ya actually meet him.A shining star on the List. If I
>> knew a FRACTION of what he knows. Hell! I probably could FIX my #$%^
>> controller when it shits out<g>!
>>
>> Hammer and torch shade tree mechanic here.Slipping into my flameproof
>> suit.
>>
>> Bob
>

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