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Discussion Starter · #1 ·
Bonjour à tous,
Je voudrais remplacer mon moteur abm 15kw (voir photos) par un moteur plus puissant au lieu de l'actuel ...
Avez-vous une correspondance pour moi?
Au plaisir de vous lire,
Nicolas.
121911
121912
 

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Discussion Starter · #4 ·
A more powerful motor might require a more powerful inverter. What's your inverter rated at?
[/QUOTE]

Hello,
I have a Curtis 1239e controller that must be able to handle a lot more power?
 

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Which variant as in do you have the 65xx, the 76xx, the 85xx? I'm assuming the 8521 because that's what the conversion specialty shops sell in the 1239e series.
 

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It's in the model number on the side of the controller. If you're using a nominal battery voltage of above 108V then it's the 8521 which has a max nominal (depending on max charge limit) of 144V
 

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Discussion Starter · #10 ·
I must be on a 6521 version with a 77v battery
in fact, i have a devinci (devinci-cars.com) and my goal is to make it a really "powerful" car in acceleration ...
I have already improved things thanks to the curtis 1313 but I do not master the configuration enough to go further!
maybe the engine is enough?
 

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It's worth examining the controller model number to be sure. Unless you plan to upgrade your batteries, they will likely be a bottleneck for power. You would need to know the discharge specs and cooling provisions for them.
 

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Discussion Starter · #12 ·
I have 5 labels on the controler !!! lol
Here are the photo ; What do you think ?
121927
 

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I'm surprised you don't have a label like this:
121929


But there you have it from the 1313. It's a 6521.

You could support something like an AC34/35, AC50/51, or equivalent with that controller.
 

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From the Curtis 1239e manual (ou en français)
Model: 1239E–65xx​
Nominal Voltage (V)​
Power: 60-84​
Logic: 12​
Max Voltage (V)​
Power: 105​
Logic: 20​
Min Voltage (V)​
Power: 33.6​
Logic: 8.4​
Peak Current (Arms) (2min): 550​
S2–60 min Current (Arms): 155​

So yes, the controller can handle more than 15 kW, at least briefly. Even the existing motor ratings are 242 A at 48 V - the current is higher than the S2-60 min limit - so the controller can't handle that for a whole hour. To get the maximum amount of power reliably through this controller, it should be be used with a nominally 84 volt system and a motor suited to that voltage.
 

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Maybe some idea for you to consider:)
121941


here's more

I see they also use Curtis controller
 

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Discussion Starter · #19 ·
Maybe some idea for you to consider:)
View attachment 121941

here's more

I see they also use Curtis controller
Maybe some idea for you to consider:)
View attachment 121941

Hello,
I sent you an email requesting information.
Looking forward,
Nicolas
 
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