09-23-2021, 02:39 PM | #11 | |
Gone Wild
Join Date: Oct 2012
Location: SoCal
Posts: 671
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Re: Accelerator Range
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My motor speed unit is 0 I believe? I'm in the middle of building a new garage so my tools and things are in storage so I can't really check for a while. |
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09-23-2021, 05:50 PM | #12 |
Not Yet Wild
Join Date: May 2021
Posts: 29
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Re: Accelerator Range
I spoke to a dealer for Advanced EV a few days ago and got quite an earful. It looks like I will be working directly with him to help figure out how to support the Toyota controller, at least in the short term. If you ask me, Toyota is doing themselves a disservice by being so secretive. LVTong is the China manufacturer for most of these Chinese built carts, and they can be ordered in a variety of models, including one with a Curtiss controller. It is possible this is a DC version, which would be a deal breaker, but we will be looking into that, as the Toyota controller is difficult to support. Even as an importer from China, he is not able to get a listing of what the software parameters do. Yikes. No idea how you can support a product you can't tune. He simply imports the carts, puts his name on them and some nicer looking seat covers, and that's that. Turns out LVTong is a joint Chinese/German operation. Interesting.
I did a little dissection today to figure out what the deal is with the accelerator pedal, and it is very weird. This is not a simple dual pot arrangement like a conventional throttle position sensor. There is a 5 wire harness connecting it to the controller, and a potted circuit assembly in the bottom of the device. It has two pots sticking out of it which have been sealed to keep them from moving due to vibration and probably also to reveal tampering. No clue what they do but I suspect this is the key to fixing the accelerator range issue. I reached out to LVTong offering my services today. I'll let you know what the response is, but I don't hold much hope for anything productive. It would be helpful to know if this is the same technique used by Icon. The Advance EV dealer insisted that Icon is also made by LVTong, it's just a different model. Maybe I'll start importing them myself ;) |
09-23-2021, 06:02 PM | #13 |
Not Yet Wild
Join Date: May 2021
Posts: 29
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Re: Accelerator Range
I should also mention that I could not see any mechanical connection to a pot from the throttle rod that the pedal is mounted to. It look like they are using some other method, but I didn't want to disturb things too much for feat I would damage something. They have quite a lot packed in there and as I mentioned, it is potted, and the wires come directly out of the potting compound. Any damage there and you have a broken, unrepairable part.
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10-06-2021, 03:48 PM | #14 | |
Not Yet Wild
Join Date: Apr 2021
Posts: 7
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Re: Accelerator Range
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