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Discussion Starter · #1 ·
So, I'm new to ev's, not to automobile wiring in general. Current project is a scratch build frame with a Tesla S ldu and rear suspension dropout. I have a complete Tesla 3 battery pack that I have designed and contructed the frame around. The ldu controller is EV Controls using their ios app. I was hoping to use the Tesla 3 battery pack with all of its functions (contactors, charger, dc-dc converter, bms) and was planning on using the Ingenext Tesla 3 battery controller (the only one I could find one the market right now (?)). My current questions relate to whether anyone else has successfully used the Ingenext battery controller with the ldu and, if so, how they operated it (buttons, CAN). Also interested to know whether any problems encountered with the size of capacitors in the ldu (creating issues with the contactors operating). If so, work around?
 

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My current questions relate to whether anyone else has successfully used the Ingenext battery controller with the ldu...
I don't know, but it seems unlikely that many people have combined the battery pack from a current design EV and the motor of a discontinued and inferior (in efficiency and cooling) design from a different model. I don't know of any reason that it wouldn't work - I just don't think you're likely find examples.
 

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Current project is a scratch build frame with a Tesla S ldu and rear suspension dropout. I have a complete Tesla 3 battery pack that I have designed and contructed the frame around.
I look forward to seeing this when you're ready to share it. I assume that this is the project with C5 suspension that you mentioned earlier, although if the rear suspension choice has gone from C5 to Model S, perhaps the front suspension has changed too.
 

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Discussion Starter · #4 ·
This is the same project. Using C5 front suspension. Rather than splitting the drive and the inverter to fit into the C5 rear suspension I sourced a full rear suspension/drive from a S (Sport). Solved several issues at one time (axles, brakes, e brake). Worked out much better dollar wise as well.
 

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This is the same project. Using C5 front suspension. Rather than splitting the drive and the inverter to fit into the C5 rear suspension I sourced a full rear suspension/drive from a S (Sport). Solved several issues at one time (axles, brakes, e brake). Worked out much better dollar wise as well.
That is a lot of problems to solve as the custom axles are about $1500, but since you are building a whole frame, didn't you pretty much start out with quite a big problem? Not to mention the whole custom body/interior?
 

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Discussion Starter · #6 ·
Not really as I started out intending on building pretty much from scratch. The question was what was the platform. Seemed like a good opportunity to go ev. Admittedly there are a lot of pieces to this puzzle..
 

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I have been eyeing that Ingenext solution for another conversion one day as I have an extra LDU in the garage. As to your initial post, I used the 057 control solution and it was dead easy to use regular switches for controls. As for the capacitors in the LDU, I used a ZEVA precharger. Works well.
 

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Discussion Starter · #9 ·
I have been eyeing that Ingenext solution for another conversion one day as I have an extra LDU in the garage. As to your initial post, I used the 057 control solution and it was dead easy to use regular switches for controls. As for the capacitors in the LDU, I used a ZEVA precharger. Works well.
Yes, I looked at 057 but at the time they only sold with the drive unit. I'm hoping that I can use the Tesla 3 battery pack complete with their charger, dc-dc and contactors.
 

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I purchased the Ingenext controller to run a conversion project. I'm transplanting a TM3 AWD drivetrain and battery into an older semi-classic cruiser (story for another day). The controller is more of a gateway as it relies on an external source of CAN commands to make the system function. While their web site indicates that digital inputs can be used to as an alternative to the CAN commands, the system still requires the CAN commands to function. Your choices to make it work are either be a CAN expert, or pony up another $3500 for their touch screen controller (which is currently sold out).

I'm working with them to try to get their "controller" to actually control the system.
 

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Discussion Starter · #11 ·
I purchased the Ingenext controller to run a conversion project. I'm transplanting a TM3 AWD drivetrain and battery into an older semi-classic cruiser (story for another day). The controller is more of a gateway as it relies on an external source of CAN commands to make the system function. While their web site indicates that digital inputs can be used to as an alternative to the CAN commands, the system still requires the CAN commands to function. Your choices to make it work are either be a CAN expert, or pony up another $3500 for their touch screen controller (which is currently sold out).

I'm working with them to try to get their "controller" to actually control the system.
So am I but no solution yet. A little concerning.
 

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So am I but no solution yet. A little concerning.
I am doing a TM3 RDU and Battery Pack conversion in to my VW Transporter VAN.
I have watched Super Fast Matt -
He used a CAN command to bring the battery out of standby, then used buttons to select the drive mode.

I'm looking to use a PolyKup - https://polykup.com
Base Tier MCU to send and receive CAN commands but this is pre-configured, so no user adjustments or customisation.

I may also use a ECUmaste - Ecumaster
ADU. This is fully customisable but is not a touch screen.
 

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Discussion Starter · #13 ·
Ingenext says that the way it is now, the only way to operate the battery or charger is through CAN. I have just the battery controller as they don't have an integrated controller for the T3 battery and the ldu. And, they can't say whether the battery's contactors will work with the ldu. I may have to return the controller and ditch the idea of using the T3 battery.
 

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Ingenext says that the way it is now, the only way to operate the battery or charger is through CAN. I have just the battery controller as they don't have an integrated controller for the T3 battery and the ldu. And, they can't say whether the battery's contactors will work with the ldu. I may have to return the controller and ditch the idea of using the T3 battery.
Did Ingenext say when 'CAN control only' was implemented?

I have a controller from May 2021, brought unused from a guy in the Netherlands.
I have been emailing Ingenext and they say the controller can be modified to use push buttons on digital inputs but best to use CAN control.
 

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Discussion Starter · #15 ·
Thats worrying news!

Did Ingenext say when 'CAN control only' was implemented?
I have a controller from May 2021, brought unused from a guy in the Netherlands.
I have been emailing Ingenext and they say the controller can be modified to use push buttons on digital inputs but best to use CAN control. The documentation supplied does not mention anything about modifying the controller!
Not sure. I just received mine last week and after looking at the schematics and instructions I didn't see any method for digital control. Emailed and was advised that it was not included in my kit:
"We did not include it in the kit we sent you. The reason is simple, you can adjust the charging current, the percentage of end of charge and you have access to the limitation of the battery via the CAN bus. Using the battery via digital inputs is possible but if you discharge the battery too much or if you use too much current, the pyrofuse will be triggered. In order to use the battery safely it is better to use it via CAN commands."
That does sound like the same message you received. We'll learn CAN programming together (I hope).
 

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What kind of “CAN controls” are we talking about?
Thinks like making sure the VCU from the LDU obeys the max. current in and out indicated by the BMS?
Then it could be a gateway making sure messaged with a certain ID and structure are translated into another ID and structure if not by default compatible.
 

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What kind of “CAN controls” are we talking about?
Thinks like making sure the VCU from the LDU obeys the max. current in and out indicated by the BMS?
Then it could be a gateway making sure messaged with a certain ID and structure are translated into another ID and structure if not by default compatible.
Hi Lars!
I just emailed you from my work account :)
 

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Not sure. I just received mine last week and after looking at the schematics and instructions I didn't see any method for digital control. Emailed and was advised that it was not included in my kit:
"We did not include it in the kit we sent you. The reason is simple, you can adjust the charging current, the percentage of end of charge and you have access to the limitation of the battery via the CAN bus. Using the battery via digital inputs is possible but if you discharge the battery too much or if you use too much current, the pyrofuse will be triggered. In order to use the battery safely it is better to use it via CAN commands."
That does sound like the same message you received. We'll learn CAN programming together (I hope).
Have a loom at this, should answer your questions-

 

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Discussion Starter · #19 ·
Have a loom at this, should answer your questions-

Yes, I watched that yesterday. It did answer my question (implicitly) regarding the compatibility of the ldu with the T3 battery, In other words, they were able to get them to work together.They indicated that they had to have some "remote" CAN programming done. Not sure if they were referring to that peformed by Ingenext or some other vendor. I did ask some question in the comments section related to that. Also, it sounds like they had to do some workaround with the hvil system...not sure what the problem was or how they resolved it.
 

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Yes, I watched that yesterday. It did answer my question (implicitly) regarding the compatibility of the ldu with the T3 battery, In other words, they were able to get them to work together.They indicated that they had to have some "remote" CAN programming done. Not sure if they were referring to that peformed by Ingenext or some other vendor. I did ask some question in the comments section related to that. Also, it sounds like they had to do some workaround with the hvil system...not sure what the problem was or how they resolved it.
Let me know what they said.
I tried to find your post in the comments but there are too many comments go through!
 
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