Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[NoiseBoy]

Would it be possible to get the encoder settings from a dealer laptop and send them to you to avoid sending the oem controller?

The subframe bit sounds very large.  Is it a freight item or could you send it by air?

[lolachampcar]

Wow, this really hurts!  Continue to try to sell my 2012 9DS so I can buy the 2013 DS (with no trade in support at all from Zero) or upgrade the controller in my current bike and void the warranty.  Ouch.

[protomech]

Or buy a 2013 and upgrade to size 6!

[NoiseBoy]

Or buy a 2013 and upgrade to size 6!

I think we have already established that the '13 pack can't deliver sufficient current for the size 6 to work at full potential.

[protomech]

Zero seems to rate the 2013 batteries for 8C discharge. (MX ZF 2.8 = 2.5 kWh @ 20 kW, MX ZF 5.7 = 5.0 kWh @ 40 kW)

ZF8.5 and ZF11.4 should be able to do something well north of 40 kW.

Anyhow, the biggest benefit will be at low speeds where the motor current is very high but the battery current is very low.

[NoiseBoy]

11400W/104V = near enough 110A.  8C would be 880A.  660/0.707 is 933A.

That is theoretical and controllers don't usually draw that much battery current so you may get away with it but its marginal.  I suppose 8C is recommended by manufacturer and you could pull a bit more.   Got to be worth a try eh.

[skeezmour]

11400W/104V = near enough 110A.  8C would be 880A.  660/0.707 is 933A.

That is theoretical and controllers don't usually draw that much battery current so you may get away with it but its marginal.  I suppose 8C is recommended by manufacturer and you could pull a bit more.   Got to be worth a try eh.

That amount of current would only be needed after you hit base speed on the motor. Also anything near 100kw on a motorcycle is going to be FAST.

[protomech]

I'm convinced that ZF11.4 is 100 Ah.

[benswing]

My warranty expires in Feb 2014, just put it in my calendar to get a size 6 controller!

[RickSteeb]

Hello everybody.  I just wanted to share some dyno data I took yesterday to give you some real numbers on the performance improvements of our controller upgrade.

Two bikes were tested on the dyno: a completely stock Zero S ZF9 (for a baseline) and a Zero S ZF9 with our controller upgrade installed.  Both bikes were more or less the same state of charge, (nearly fully charged) and data was taken under the same conditions within a few minutes of each other.

As you can see, hp is boosted about 20% from about 30hp to over 36hp.  Torque increases about 34% from 48 ft-lbs to nearly 65 ft-lbs. 

The torque is really what makes the difference, improving acceleration drastically.  I'll post more pics and performance metrics soon.

I was wondering whether a ZF6 would have enough available current to justify the size 6 mod.  Is there any data to show similar torque/hp improvement with the controller upgrade on a ZF6 bike??? 

[protomech]

If the bike puts 36-37 hp (28 kW) to the rear wheel, it probably pulls 32-35 kW from the battery pack at peak.

The ZF6 pack is 80Ah, 65V nominal. EIG cells are rated for 5C continuous (400A), 10C peak (800A). 35 kW would probably drop down to 60V, or about 580A .. so the ZF6 pack should be able to hit the same peak power numbers as a ZF9 bike with the size 6 controller. Sustained top speed might be a little than the ZF9 bike, but both bikes are probably limited more by motor heat soaking than anything else.

However, a really neat thing about the motor controllers is they can put out 660A at low RPMs = low motor voltage when the battery pack draw is small .. the ZF6 at full throttle probably doesn't start to draw more than 5C until 40-50 mph, so the low speed torque should be just as good as the ZF9 bike.. and the ZF6 is significantly lighter.

[NoiseBoy]

Electric Cowboy is running a size 6 controller on his ZF6 race bike with good results.

[e-rider]

Price for the full kit is $2500.  Trading in your old controller will bring the price down to $2000.

What is included in the full kit?

[Harlan]

What is included in the full kit?

The full kit includes the new controller, heatsink, subframe and motor leads.  Here are a couple pics of it installed in a bike.

[BSDThw]

Hi harlan,

Awesome job looks perfect. Tempting to order; would you send it abroad?

I play the squeaky wheel and ask more questions.

Terry wrote:

 ...Although the next day I did take it back out and remove 1/2 of a bolt hole on each side of the frame and then put it back it for a nice snug fit like the bike was designed for …

Do we need to do this too with your Kit?

The plastic cover at the bottom has to be adjusted by ourselves to fit?

Is the subframe a substitude for the fragile construction from the heatsink to the plastic cover and light?
Personally I like the look of your tail chop, but I will run in trouble with TÃœV and Police and I have a sideback frame which is fixed to the rear fender. ( see pics )
Is it possible to install the subframe with the original fender so my frame will still fit?