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Messages - Walker

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1
Zero Motorcycles Forum | 2013+ / Re: Range extender - external battery pack
« on: April 23, 2020, 12:20:36 PM »
I have to test technology of building such a battery pack for my next project and why not to connect it to my bike and test it there....but just for your information, price of original "Power tank" in our country is about 3800USD, this 2,4kWh DYI pack is about 280USD including charger.

2
Zero Motorcycles Forum | 2013+ / Range extender - external battery pack
« on: April 20, 2020, 12:20:41 AM »
Hi all. I am building an external battery pack as  a "range exteder" for my Zero SR2018 and need help with connecting it to the bike.

My thoughts:
- I am not gonna use it everyday, just for long distance traveling
- the pack will be charged and balanced with an external charger and then fully charged connected to the bike (at the same voltage of course)
- pack consists of 2170 5000mAh cells, 2,4kWh in total (28S4P)

- I think the easiest way would be via external SBS charging connector. There is a fuse - I think 100Amps -  so I can´t use all the power of the bike, It would burn it, but that´s OK, my cruising consumption is about 50Wh/km only.

What dou you think?

3
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: July 04, 2018, 09:18:03 PM »
Yesterday I tried a new setup - 65Hz and centered the belt on the rear sprocket (was too close to the outer edge). I also washed the belt with water and used a dry silicone spray. Seems good after 40km so far...

4
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: July 02, 2018, 08:26:40 PM »
I have got 2 700 miles on it. What tension do you mean,  42Hz ?

5
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: July 02, 2018, 05:24:10 PM »
So I think the battery finaly settled down and I can get a range about 200km when I keep speed with the traffic. I do not care anymore about the capacity but I know I can use max. 10kWh from the battery (if the onboard kWh consumption meter is right). The only thing I am still not satisfied is the strange sound of the belt. It vibrates and creaks in some speeds and when decelerating. I was trying to change the tension (now about 100Hz) and the alignment, also applied dry silicone on it, but it helped just for a while...  :(   any idea?   

6
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: May 19, 2018, 04:15:07 PM »
Does anyone know, where to get an old version of Zero app for Android - need to se the battery capacity... thanks!

7
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: May 14, 2018, 11:27:19 PM »
The voltage of my empty battery was 94Volts is it correct? I thought it should go lover, to some 90V.... ?

8
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: May 14, 2018, 01:36:42 AM »
Today I rode the battery to 0% and then some 5km more (the power and torque were limited) but the bike did not stop. I was out of time so I stopped playing with the bike and set on the charger. App told me, that I used 9.44kWh - I am still missing some 2kWh of energy.    I´ll try to install an old version of the app on my phone to see the overall battery capacity.

9
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: May 12, 2018, 02:06:12 PM »
Thank you, I tunned it to 70Hz.  Few day ago I got my bike back from the dealer. They changed the controller unit and made some "calibration". Now the bike does not restart and runs fine. But I am still woriied about the range and usefull capacity of the battery, Richard230 or someone else with MY2018, how much energy can you get from your 14.4kWh battery pack? I am still at some 9,5kWh (last trip 216km at 44Wh/km).  I also got a notice from the dealer about battery-controller learning proces - see attached file.

10
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: May 01, 2018, 11:26:46 AM »
Ok, I´ll try. And what is the default "belt frequency" for 2018 model, 42,5 - 73,6Hz or 96,3 - 124Hz ?

11
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: April 29, 2018, 10:14:25 PM »
So the controller is being changed... :(

12
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: April 18, 2018, 01:57:56 AM »
So I am in a contact with my dealer and with ZERO Europe HQ and they call me to have it repaired. They say that  the errors are referring to the communication between the MBB and the controller, probably have to change it. How could this pass the factory tests?

13
Zero Motorcycles Forum | 2013+ / Re: Dash display "Life AV" completely false
« on: April 17, 2018, 02:51:57 PM »
Same my bike (SR 2018) but showing more than 286Wh/km... nonsense....my average is about 55Wh/km....

14
Zero Motorcycles Forum | 2013+ / Re: New bike - new problems
« on: April 16, 2018, 10:00:00 PM »
Thank you Terry. 
So how can I learn the real capacity of my battery?
I´ll try to align the belt, but is seems to be ok.
There was no rain since I got the bike so water is not the issue...  :(

15
Zero Motorcycles Forum | 2013+ / New bike - new problems
« on: April 16, 2018, 09:21:50 PM »
Hi, I am new here, having my SR MY2018 for a week. First impression - AWESOME ! 
But... during my trip back home I rode the battery to 0% and had 175km with 48Wh/km = 8,44kWh used. Well, the dealer said it will go up after few battery cycles. After 2 more cycles nothing happened, I am able to get 8,5kWh from the battery only. Is that normal? Are they right?
Second problem is a noise comming out of the belt, more precisely from the gear of the motor. They are also telling me it will get better...right?
Third and the most serious problem - the bike makes restart when I stop at the lights. Does not make it every time, but very often. Don´t have to tell you how dangerous it is ! Does anybody know where is the problem?  I went through the log and found this error coming up during the restart again and again:

06558     04/16/2018 16:29:23   Throttle Disabled:         Sevcon Starting Up,     
 06559     04/16/2018 16:29:24   DEBUG: Module 00 Contactor is now Open   
 06560     04/16/2018 16:29:26   Sevcon Turned On   
 06561     04/16/2018 16:29:27   Sevcon CAN Link Up   
 06562     04/16/2018 16:29:27   DEBUG: Sevcon Contactor Drive ON.   
 06563     04/16/2018 16:29:27   Module 00                  vmod: 108.84 maxsys: 108.84 minsys: 108.84 diff: 0.000 vcap: 100.062 prechg: 91%
 06564     04/16/2018 16:29:27   DEBUG: Module 00 Contactor is now Closed   
 06565     04/16/2018 16:29:33   SEVCON CAN EMCY Frame      Error Code: 0x2000, Error Reg: 0x02 Sevcon Error Code: 0x54c3, Data: 0x00 0x00 0x54 0x40 0x05 , Unknown
 06566     04/16/2018 16:29:33   SEVCON CAN EMCY Frame      Error Code: 0x2000, Error Reg: 0x02 Sevcon Error Code: 0x54c5, Data: 0x00 0x00 0x54 0xff 0x05 , Unknown
 06567     04/16/2018 16:29:33   SEVCON CAN EMCY Frame      Error Code: 0x2000, Error Reg: 0x02 Sevcon Error Code: 0x54c7, Data: 0x00 0x00 0x54 0xfc 0x05 , Unknown
 06568     04/16/2018 16:29:33   DEBUG: Sevcon Contactor Drive OFF   
 06569     04/16/2018 16:29:33   DEBUG: Sevcon Has Turned Off Contactor Drive   
 06570     04/16/2018 16:29:33   Module 00                  vmod: 108.821V, batt curr: 1A
 06571     04/16/2018 16:29:33   Module 01                  vmod: 0V, batt curr: 0A
 06572     04/16/2018 16:29:33   Sevcon Turned Off   

Thank you for your ideas...

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