.
And yet you haven't made something bullet proof. You've just added enough overkill so it won't be the weakest link, nothing else. The lack of self regulation and limitations will probably play out in either of two sceraios:
Once more, that's because you went with overkill instead of style. It's "Get a bigger hammer"-approach. The problem with that approach is that sooner or later you'll find a nail that's too tough and that's when your hammer isn't good enough anymore.
No, the power stage isn't the problem (or at least not for the reason you claim). The problem is that Logisystems, like your controller, doesn't handle power limitation in any way. Oh, and their hammer were a lot smaller too...
That's because it's also totally absurd.
Hey Qer,If your controller is too weak for the task it should behave like this:
And not like this:
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We've learned that (or rather, verified that) the hard way on the dyno. Seems you guys skipped that class, eh?
That's because they think this when they hear the term EV:
We may have skipped the dyno class, but there's one thing I can say for sure:And yet you haven't made something bullet proof. You've just added enough overkill so it won't be the weakest link, nothing else. The lack of self regulation and limitations will probably play out in either of two sceraios:
- Since the controller doesn't have any built in limitation it will just continue to provide current until something else gives in. My guess; the battery pack. Sure, the controller will survive but the 5 digit dollar battery pack will be toast. Horray.
- Batteries are continuously improved and especially racers continue to push the bar. Sooner or later someone's gonna add enough motors and use powerful enough cells for your overkill to be overkilled. BAM goes the controller.
Once more, that's because you went with overkill instead of style. It's "Get a bigger hammer"-approach. The problem with that approach is that sooner or later you'll find a nail that's too tough and that's when your hammer isn't good enough anymore.
No, the power stage isn't the problem (or at least not for the reason you claim). The problem is that Logisystems, like your controller, doesn't handle power limitation in any way. Oh, and their hammer were a lot smaller too...
That's because it's also totally absurd.
A controller for an electrical vehicle MUST have current limitation to protect itself, otherwise it will blow up. So you've thrown more transistors on the problem? Good, that means that it will survive longer by sheer brute force. You might even be able to handle that 4000 pound car thanks to overkill, but will the controller also survive it when the car's fully loaded with stuff in the trunk and is going uphill so the power consumption's multiplied a few times? How about hot days when the sun's shining and the temperature gets so high under the hood that your 400 Amps IGBTs should be derated to, say, 300-350 Amps instead?
Sooner or later you'll manage to stress the transistors more than they can handle and that's why a good controller must protect itself. If your controller is too weak for the task it should behave like this:
And not like this:
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We've learned that (or rather, verified that) the hard way on the dyno. Seems you guys skipped that class, eh?
Should there be a definition of race? 1/4 mile? 100 mile? And perhaps you should take on the 1000A controllers with your 1000A controller, or do you need to use your 2000A controller to have a chance of beating them?We may have skipped the dyno class, but there's one thing I can say for sure:
The EP-2000 has NEVER lost a race.... EVER. That's something that the Soliton and Warp controllers can never claim. So, if you think that our engineering is inferior, please, feel free to race. Just make sure you have the keys to your car ready to turn over... because winner keep BOTH cars
Let me tell you a bit about a friend I have. He used to be one of the mechanics in a racing team that usually raced with high performance SAABs. The engines were tuned to a level where something (usually the joints) broke sooner or later. About one race out of ten the car didn't even leave the starting line because the joints snapped when the driver slammed the throttle. It was still worth it, for those nine other races out of ten the car took off like a bullet and usually were the first into the first bend. I once asked why he didn't tune his own car, but he just replied that he preferred a higher success rate than 90% at the red lights.
I think our 1000A can take on almost any 1000A out there.... but for me, I prefer the 2000A, which actually costs about $200 LESS than the Soliton or Warp controller. The EP-1000 is also about $1000 less than the least expensive "1000A" controller on the market today.
