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Messages - Ingineer

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1
Energica / Re: Waterpump replacement ?
« on: January 09, 2026, 10:27:11 AM »
I had the same issue, I used this one, works great with a little adjustment:
https://amzn.to/4qFrXwF

2
Energica / Re: EMF amd Faraday Fabric
« on: June 28, 2025, 05:49:56 AM »
Not for health stuff or HV shielding,  but there is a phenomenon that Energicas tend to have more issues with CCS handshake when there are more vehicles charging around the motorcycle. I have experienced many charging isses on my September trip in a group of 5 Energicas; first arriving bike usually get's the handshake done, later connecting bikes struggle. When applied, I am curious to learn if handshake issues reduce.

This is because CCS uses PLC (Power Line Communications) as it's communications system.   Because this is essentially radio over wires, it can "bleed" where it's not wanted.   There is a protocol called SLAC (signal level attenuation characterization) that is designed to help mitigate this, but it doesn't always work as expected.

3
Energica / Re: Engine Failure!
« on: June 27, 2025, 12:12:26 PM »
Sounds like you may have a flash memory starting to fail in the bike's main ECU.   Some types of flash when they fail will bit flip, then you correct it by reflashing, and that same area will again bitflip.

4
Energica / Re: EMF amd Faraday Fabric
« on: June 26, 2025, 06:33:23 AM »
I am an Electrical Engineer.

I agree with everything @Specter said, in addition, all HV cabling is shielded already, and all active components are encased in metal.  This stops RF propagation, which is required in many locales to stop the bike's (or any other EV) from emitting noise that could affect communication systems.



It doesn't stop magnetic fields, but these do not radiate far otherwise it would mean the system is horribly inefficient, which it's not.

There has been zero good science that proves there's any risk to exposure to EM fields at the levels the bike emits.   I think we'd know by know if it was dangerous, having had LF EMF around for ~100 years now.



5
Energica / Re: DC charging at home (20kW 50A)
« on: June 10, 2025, 04:45:26 AM »
It's a direct boost MPPT using a 2 phase SiC based boost converter.   We only (presently) sell it as part of our solar option on our vans, it was linked in my previous post.   The reason it's more efficient is because it's doing a direct boost, non-isolated.  Commercial chargers are not as efficient because they have the added burden of galvanic isolation.  Note the complete lack of heat sink or fan cooling, the housing is more than adequate for the small amount of waste heat it generates.

If there was a business case to modify them for other uses, then maybe we could do that, but it only makes sense if the volume supports the NRE engineering costs.

6
Energica / Re: DC charging at home (20kW 50A)
« on: June 09, 2025, 09:46:54 PM »
We have an MPPT solar boost converter we engineered in-house for use on our vans.  It can take DC from a series solar string about 100-250v and directly charge an EV pack with >99% efficiency, and depending on array configuration could do up to around 3kW.   In our use-case it connects to the BMS over CAN to obey the charge current limits, and the UI to set the upper charge limit.   But it could be modified to work with CCS.

https://maxwellvehicles.com/solar.html


7
Energica / Re: Onboard Charger Issue
« on: June 05, 2025, 04:06:14 AM »
It's most definitely not tapped!  There is a small auxiliary DC-DC converter that produces 9 volts for the keep-alive.   This is always in-circuit even when the bike is otherwise asleep.   You can reduce it's consumption by removing the small in-line glass fuse if you aren't using the bike, say for winter.

8
Energica / Re: No DCFC!
« on: June 05, 2025, 04:03:21 AM »
Yeah, you never want to run a thermal fuse at close to it's rating, it will thermal cycle too much and eventually nuisance-blow.   

9
Energica / Re: No DCFC!
« on: June 01, 2025, 11:08:09 PM »
Yeah, the latch is supervised with a switch in the handle, so if it does not come down fully, the proximity line will be de-asserted and no current can flow for safety.

10
Energica / Re: Unofficial energica manual website..
« on: June 01, 2025, 02:00:44 AM »
It's a good point, but I've also got the PIN code entry as backup.  I've done a fingerprint reader on my other bike and it's not let me down yet.   I don't ride when it's cold/crappy out, so no worries there!

11
Energica / Re: Unofficial energica manual website..
« on: May 31, 2025, 04:39:28 AM »
I was able to hack it.  I bypassed the Zadi keyless module with CAN injection and provided the 4 byte immobilizer key value the VCM is looking for.   Recently Demoni said if I bring the bike into the shop, he'll program a new Zadi module for me with keys, but I may just do something else such as a fingerprint reader.

12
Energica / Re: Is there no longer a warranty to void?
« on: May 22, 2025, 12:22:19 AM »
Has anyone removed the AC charger - and had the bike continue to function without errors?

Yes, on my 2023 SS9 the bike functions normally with it unplugged.

I haven't attempted to put more amps in than the OBC normally does, but I will try it sometime soon.

13
Energica / Re: Is there no longer a warranty to void?
« on: May 21, 2025, 08:23:00 AM »
I don't think it can be called CCS without the AC charger. The first "C" is the problem, stands for "combined".

-Don-  Reno, NV
Yes, that's hat it "stands" for, but it's definitely possible to remove the onboard charger (AC to DC power supply) and still have CCS work for DC fast charging.  The onboard charger is not used for CCS.  (Separate pins on the CCS inlet even!)

14
There are no regulations about having a diagnostic port at all on an Electric Bike.  We are a manufacturer of large Electric Vans, and we don't even need to have one.  Only vehicles that have emissions controls are required to have this.  (OB2 et al)

There are no regulations requiring a 12v battery or an always on DLC3.   If that was the case then how do other bikes such as Energica not have them?

It's strictly an engineering choice or about liability.   Once you have ABS on a bike, if it fails on a rider and they get injured/killed if it malfunctions, the lawyers will come.

From an engineering choice, power conversion is always high-stress, so prone to failure.   It's made worse if you have a lot of inductive loads on a 12v bus.  Bikes aren't anywhere near as bad as cars, but it's still a concern.   If you had a DC-DC failure and have a 12v battery, you can still ride probably for long enough to make it to your destination before the bike dies.   Without it, if the DC-DC fails, the bike is instantly dead, whether you are at speed, braking hard, or just waiting at a stop.   Same for cars, with much higher risk, so all engineers opt for the low-cost redundancy it provides. 

15
Energica / Re: Is there no longer a warranty to void?
« on: May 20, 2025, 08:20:50 AM »
No, the AC charger is a separate module.  On most bikes it's under the seat.  You can most definitely unplug this and remove it and the bike will still run.   It would be pretty trivial to permanently leave it at home, but I guess they figured as heavy as these bikes already are, whats a few more kilos worth of on-board charger?

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