Electric conversion: Project ForkenSwiift - Page 77 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

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Old 09-26-2007, 06:28 PM   #761
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Quote:
Originally Posted by MetroMPG View Post
Whee! I guess I just won this DC-DC converter
$25, incl. shipping via "best offer" bid.
Score! Now take it apart and reverse engineer it for us :-p
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Old 09-28-2007, 03:02 PM   #762
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I took the car in to the mechanic today
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Old 09-30-2007, 07:24 PM   #763
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I tried.
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Old 10-02-2007, 07:56 PM   #764
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Thanks for the soldered lug tutorial and other updates

BTW, although controller failures are uncommon, they do happen. I've seen an example of an early model Altrax controller that failed while coupled to an Etek. The MOSFETs shorted which = full power from the batteries to the motor. Also someone on another EV forum I'm a member of was injured when their controller failed WOT and they crashed.

A neat place for your second/disconnect contactor would be wired into the brake circuit. What happens when things go bad? You go for the brakes! My EVT 168 electric scooter has a brake cutout where if the brakes are activated while the throttle is open the controller cuts out and doesn't restore power for two seconds after the brake is released.
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Old 10-02-2007, 08:41 PM   #765
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On the issue of DIY soldered cable ends...
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Old 10-02-2007, 09:24 PM   #766
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Quote:
Originally Posted by MetroMPG View Post
Oh, and trebuchet - I was talking to someone last week who made an electric outboard (DC with lithium) and experienced controller failure (overheated it) ... it failed fully on.
So it sounds like it happens infrequently enough that it's important enough that you shouldn't not have a fail safe*

Sorry for my laggy responses - it's just more fun to read this thread infrequently - it makes progress look much more progressive and exciting

Quote:
I'm probably reinforcing the stereotypical impression that EV's are necessarily weak & slow.
Have you done anything like a 0-100km/h test?




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Old 10-02-2007, 09:48 PM   #767
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Can it go 100kmh?
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Old 10-03-2007, 05:39 AM   #768
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Nope - it's weak and slow.
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Old 10-04-2007, 06:08 PM   #769
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On the plus side, they gave me a great rate on insurance for the Blackfly, so I switched it over to them
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Old 10-04-2007, 06:23 PM   #770
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That really sucks to get hung up on insurance...

Metro, if I make my way to the big B for a few hours this long weekend is there any chance I could see the EV? A friend lives there and I may pop up from a Picton turkey fest and see him.
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