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Messages - Zer0G

Pages: [1]
1
Energica / Re: 12v supply
« on: May 04, 2019, 05:07:09 AM »
You can take the supply on the fuse box under the fairing.

2
Energica / Re: How to stop the charge at 85%
« on: October 04, 2018, 02:44:01 AM »
The general idea beside your post is correct, but there are few considerations that I want to share. Every battery chemistry behaves differently. This also apply to same chemistries and different manufacturer. Given this, there are few general rules at least for lithium cobalt manganese. Those batteries are extremely conservative in terms of exchanged Ah. It means that if a 100Ah cell is rated for 1000 cycles at standard conditions (25°C 1C discharge down to 3V, 0.3C charge, charge termination at 0.05C and voltage 4.2v),  if you run the cell with half cycles (only 50Ah exchanged) it will last 2000 cycles more or less.
So in this case you will charge the cell twice the time for half of the range - > more or less same total mileage.
There are factors that will shrink down the total amount of Ah that a cell can handle in its life that are mainly:
- average temperature: higher average temperatures will significantly affect the cycle life and calendar life;
- charge termination voltage: the very top part of the charge is somehow stressing for the cell (not over 80 or 90% but pushing to 4.2 or even higher voltage can divide by 2 the cycle life).
- average and peak discharge rate or charge rate.

The lowest part of the charge is not (my personal opinion after hundreds of ours of tests)  so important for the cell life (at least if you don't force it to extreme undervoltage).
Even less for LiFePO4 cells (accelerated aging tests on a couple of manufacturer didn't show any degradation after several complete discharge to 0.1V).

Given this, I know that Energica batteries are managed in an extremely conservative way.

3
Energica / Re: How to stop the charge at 85%
« on: September 28, 2018, 11:00:13 PM »
That is a good point about the Energica batteries. Especially, as they use a different battery chemistry than does Zero. They also advertise a lower number of charges that their batteries are rated for, compared with Zero. I think Energica says 1200 full charge/discharge cycles, compared with Zero's advertised 3000 cycles. Plus, the Energica is a much larger investment than most Zero models. I can see how you wouldn't want to push the envelope if your didn't need to. Plus why take any chances, since Energica hasn't been on the consumer market all that long and no one has any long-term experience with their batteries' actual service life.

Energica uses the same chemistry than zero (NMC lithium nichel cobalt manganese). The fact Energica declares less cycles than zero depends on the fact that Energica figure is real, zero is a number that makes no sense at all. Best lifepo4 batteries (much lower tendity and performances)  are rated for 3000 cycles but on the paper. On real use probably 2500. No way that zero batteries can last 3000 cycles (especially because I know the brand of the cell and I personally tested them with accelerated aging tests). I think that  to have a realistic number you need to divide by two the zero data.

4
Energica / Re: How to stop the charge at 85%
« on: September 20, 2018, 05:27:02 AM »
Thanks Guys for the LPR idea  ;D
That's perfect for my daily use  8)

For your information, while using the LPR mode :
- it does not take into account the Amp limit. and it's not adjustable neither
    --> it charge with the fan ON.That's not a big deal for me but it can be for some

- it stabilize at 80%, not 87%
    -->  fit me well but also may not be sufficient for some

Good point. Energica is working on the charge management algorithm. Upcoming firmware will add some new functionalities about charge termination and fan management.

5
Energica / Re: Energica Eva 107 vs Zero SR
« on: August 30, 2018, 09:34:18 PM »
On one hand the precision of the throttle would allow for coasting but I am not sure you will do much with the Eva. I think when you reach the point on the throttle you consider coasting I think the bike will slow down a lot more due to the drag of the drive train and the weight of the bike compared to coasting with a Zero.


That's interesting. I'll bet that regarding range differences, the battery capacities really are equivalent, and the Energica just has some combination of powertrain losses and accessibility of coasting that limits the range a rider can get.


Oh, I guess I can think of another factor: IGBT vs MOSFET losses in the controller, since IGBTs are required for powertrains operating at 350-400V. So, while the high voltage powertrain is much more robust at lower charge states, the IGBTs are more taxing across the range.

Mainly this is due to the larger front area, it is a bigger bike at the end. The powertrain is quite efficient even with IGBT.

6
Energica / Re: EVA's Headlight
« on: August 30, 2018, 09:23:37 PM »
The current is about 1.2Amps per channel (total of 4 channels, 2 Hi and 2 Low).

7
Energica / Re: How to stop the charge at 85%
« on: August 30, 2018, 09:10:10 PM »
HI everyone,

How can we stop charging an Energica at 85% ?

I'm using 60% a day, and want to increase my battery life.
So my aim is to charge up to 85% and came back home with 25%

I set 85% on the app and hit the "SET" button without any result whatever the status of EVA... On / Off / On while charging / Off while charging...  :'(
Even with the smallest 6A current (1,3kW), I get to 100% in 5h... and I don't want to get up at 4 AM to unplug the Eva ^^ ::)

Does anyone knows how to manage to do that?

You can activate the LPR mode. The LPR mode will charge the bike up to 87%. Remember to clear it to ride the bike again.

8
Energica / Re: power rating of Energica Ego.
« on: January 13, 2018, 11:29:59 PM »
DoctorBass, you hit the nail on the head.  I'd be very happy if the wife didn't require a new license to ride an Energica. Local dealer also commented they don't quite know where the figure for the Ego's power rating is coming from, it doesn't seem right. They said they confirmed with Energica but don't seem at all convinced. The number seems more marketing focused.

The number is not marketing focused. The number is coming from the test that was performed in order to get the type approval.
The continuous power is simply the continuous power that the powertrain can deliver for 30 (or 15 minutes if you ask to the Homologation
 Authority for a time reduction justified by technical reasons). The power is measured in standard driving condition, without any modification to the cooling system. The power test is a test of the powertrain in strict sense. This means that the vehicle in theory can be connected to an external power supply set at the nominal voltage and current. This means that the peak power at battery fully charged could be even more (normally nominal voltage is defined @ nominal cell voltage -> 3.6/3.7V not the maximum 4.1/4.2V). The power rating of Energica Ego means just that the powertrain is designed to operate at full power for an undefined time. For sure it is not what the battery can do. If the battery is depleted you can't go at full power even for 5 seconds.

9
Energica / Re: power rating of Energica Ego.
« on: December 16, 2017, 02:23:59 PM »
Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

I think it depend in teh interpretation of  what is exactly "CONTINUOUS"..

The Continuous that Zero use i think it mean a test that  validate witch power that all components can't see any increase  of a single degree C... so at 28hp, the Zero dont increase by a degree celsius on any components ( controller, battery, motor etc) ... but for other company like energica, that "continuous"  might be 45 minutes....

in other words that is related to a power that get stabilized temp the entire system can operate at

Doc

Yes it is the right number from energica. Energica specifications are quite accurate. The 145bhp continuous power is the homologation test result. For UNECE regulation the continuous power is the maximum power the Powertrain is able to deliver without loss of performance or fault for a duration of 30 minutes. In case of energica ego this value matches the max or peak power since it is designed (in terms of cooling mainly) to operate at full power for an indefinite time as a proper Powertrain has to do. Does a car after 2 minutes of full power degrades its performances?

10
Other Electric Motorcycles / Re: Lightning Motorcycles LS-218
« on: June 17, 2015, 06:23:18 AM »
http://www.gizmag.com/lightning-ls218-review-ls-218/36470/

Nice review of the LS-218. Lightning says they want to produce 150 bikes in a first run. That seems ambitious for a bike that starts at $39k with (AFAIK) no distribution network and no support network. It's hard to tell how serious they are about actually selling; but unlike Mission Motorcycles, I think Lightning and CRP both will actually sell you a bike if you show up at the door with $40k.

Richard Hatfield also talks about charging.

Quote
The LS-218 ships with either a 12, a 15 or a 20 kWh battery pack, getting you a maximum range of 120, 150 or 180 miles respectively. Charging time is around 30 minutes on a DC fast charger, and I don't know many sportsbike riders who don't appreciate a half-hour break after a couple of hours in the saddle.
Lightning has claimed 120 highway miles for a long time for the 12 kWh pack; I've long suspected that this range was either a partial-highway test or using the landspeed record fairings. That range claim is now gone from their website, and the 12 kWh bike now claims It's also curious that Lightning is talking about SAE J1772 DC, CHAdeMO, and Supercharging on a bike that is supposedly ready to ship now; possibly there are different DC charging modules that could be attached?
...probably because Lightning will never ship a bike to a customer?

11
Energica / Re: Eva makes Ride Apart Top 5 of EICMA
« on: June 17, 2015, 06:08:01 AM »
VHS vs. Beta.  The only winners were media manufacturers (having to replace one's Beta player and tapes with VHS after the standard solidified) and intellectual property owners (bought two copies of the same movie).

The sad part of CCS vs. CHAdeMO is that both are extremely similar.  I'd venture to guess that it won't be a VHS / Beta type of war, rather, the charger manufacturers will be putting both types of connectors onto their chargers going forward as there's only a very small difference between them in the grand scheme of things.  I'd point out that I think that CHAdeMO (DC) is superior because it is the same no matter where in the world you might go with your vehicle, regardless of whether single phase AC or three phase power AC is commonly used.  The CHAdeMO "standard" effectively acts as a power translation layer.  CCS (DC) has two types of connector, as you were told at the Energica demo.  There is the Euro Type II with a Mennekes AC connector on the top and the NA Type I with the J1772 AC connector on top.  Also, Energica indicated that once a bike is manufacturered with a particular (J only, M only, Type I only, or Type II only) connector, it would not be possible to change it on that bike ever, not even as a paid service.  With gasoline cars, you can take a car, even if temporarily, from one place to another, and it would technically work.  Have a CCS Type II connector in North America? good luck.  Any engineers out there?  Please correct me, I wish I was wrong.

Your are quite right. It's silly that USA and EU have different connectors especially if you think that from an electrical/communication protocol point of view are absolutely the same (except a small difference in the proximity line but normally vehicle electronics can handle both configuration).
CHAdeMO is completely different from a communication  point of view (and lot simplier).
CHAdeMO has some drawbacks. First of all it has only DC Charge so to allow also the AC option you need a second connector that is not a problem on a car but it is hard to fit in a sport  bike.
Then in my opinion the end of CHAdeMO is starting right now. BMW and WV are betting on CCS  and if they decide to use CCS there is little than the rest of the world can do against them.

12
Energica / Re: Energica goes drag racing
« on: June 17, 2015, 05:49:27 AM »
Doc - I think that's more like the P85D is very quick to 30-40 mph then slows after. Relative frame of reference!

The Zero is less than two seconds slower than the Energica. I suspect this is not a quarter mile length, and I'm suspicious of the HP4 result.. Impressive wins nonetheless.

In truth it was a 0 to 100km/have and everything it is real. The problem with the hp4 is to handle a really powerful ICE engine on an extremely light bike.
That trial was the best of the day for the hp4 and was with launch control off. With launch control on the result was even worst for the BMW.

13
Electric Motorcycle News / Re: Energica Ego prototype review article
« on: October 18, 2013, 09:29:02 PM »
It is not easy to evaluate the noise from a youtube video. You have to hear it. I heard it several times and to me sounds really good.

14
Pics and Vids / Re: An Italian electric motorcycle
« on: October 18, 2013, 09:22:47 PM »
Energica will be in sale from first quarter of 2015 and the first market will be USA.

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