Tech > Home Brew
Jozzbikes Ducati
Jozzer:
Hi guys,
First post here, wanted to come introduce myslf and one of our bikes.
Heres some video of our electric Ducati, fitted wwith dual Agnimotors, running at 90v on a kelly 120v 1200A controller.
First up, motors in series (good for 55mph, very high torque, very controllable throttle and regen)
Jozzbikes Ducati.
Next motors in parallel, top speed 110mph or so. 91mph max achived on this run (part 2)
NA1 Jozzbikes Ducati
NA2
I have data files (excel) matching these video's showing current/speed/ah/v/time but when I tried to attach them I was told they were too large (and the long thread I had written was lost!). Should you wish to view them, drop me an email (steve@jozzbikes.co.uk) and I'll forward them on. A sample of the file looks like this: (time, AH, volts, amps, speed, miles)
13:40.0 12.046 79.25 344.2 70.15 13.056
13:40.2 12.066 78.81 361.1 70.94 13.06
13:40.4 12.086 78.55 344.6 72.26 13.064
13:40.6 12.107 78.15 392.1 73.15 13.068
13:40.8 12.128 77.69 371.2 74.26 13.072
13:41.0 12.148 77.44 366.5 75.26 13.076
13:41.2 12.169 77.17 368 76.04 13.08
13:41.4 12.19 76.85 376.6 76.79 13.084
13:41.6 12.212 76.39 405 77.95 13.089
13:41.8 12.235 76.08 403.2 78.75 13.093
13:42.0 12.256 75.55 390.2 79.9 13.098
13:42.2 12.279 75.41 412.5 80.63 13.102
13:42.4 12.302 74.85 407.6 81.62 13.107
13:42.6 12.325 74.75 412.9 82.2 13.111
13:42.8 12.347 74.79 396.5 82.55 13.116
13:43.0 12.371 74.14 434.8 83.52 13.12
13:43.2 12.394 73.74 420.2 84.08 13.125
13:43.4 12.419 73.57 440 84.61 13.13
13:43.6 12.442 73.88 416 85.3 13.134
13:43.8 12.464 73.73 405.1 85.84 13.139
13:44.0 12.487 73.72 402.4 86.41 13.144
13:44.2 12.508 73.92 387.4 86.94 13.149
13:44.4 12.528 74.17 364 87.37 13.154
13:44.6 12.55 74.56 392.3 87.96 13.159
13:44.8 12.571 75.02 375.4 88.12 13.163
13:45.0 12.59 75.04 341.6 88.67 13.168
13:45.2 12.611 74.78 382.2 89 13.173
13:45.4 12.631 75.32 350.3 89.3 13.178
13:45.6 12.649 75 335.9 89.49 13.183
13:45.8 12.667 75.61 327.5 89.74 13.188
13:46.0 12.687 75.16 348.1 90.03 13.193
13:46.2 12.706 75.72 351.5 90.17 13.198
13:46.4 12.726 75.44 350.3 90.32 13.203
13:46.6 12.745 75.59 338.6 90.6 13.208
13:46.8 12.762 75.87 320 90.71 13.213
13:47.0 12.781 75.61 333.3 90.88 13.218
13:47.2 12.797 75.64 298 91.23 13.223
13:47.4 12.815 76.01 316.7 91.09 13.229
13:47.6 12.833 75.87 320.5 91.15 13.234
13:47.8 12.85 75.66 301.1 91.45 13.239
13:48.0 12.866 75.67 298.3 91.39 13.244
13:48.2 12.884 75.98 313.5 91.41 13.249
13:48.4 12.899 76.12 282.3 91.44 13.254
13:48.6 12.917 75.89 325 91.57 13.259
13:48.8 12.935 75.67 319.8 91.3 13.264
13:49.0 12.952 75.63 306.7 91.02 13.269
13:49.2 12.97 75.76 316 91.13 13.274
13:49.4 12.978 81.97 151.8 91.14 13.279
13:49.6 12.978 89.23 -0.1 90.14 13.284
13:49.8 12.978 89.7 -1.1 89.14 13.289
13:50.0 12.978 90.01 1.4 87.86 13.294
13:50.2 12.978 90.28 -0.1 86.78 13.299
13:50.4 12.978 90.47 -1.6 85.67 13.304
13:50.6 12.978 90.65 1.4 84.82 13.308
13:50.8 12.978 90.81 -1.9 83.72 13.313
13:51.0 12.977 91.7 -16.1 82.91 13.318
13:51.2 12.992 80.01 275.1 82.35 13.322
13:51.4 13.016 72.65 419.7 82.53 13.327
13:51.6 13.041 72.36 459 83.34 13.331
13:51.8 13.062 72.71 385 84.13 13.336
13:52.0 13.084 72.75 388.5 84.75 13.341
13:52.2 13.105 73.25 375.3 85.27 13.346
13:52.4 13.125 73.11 369.8 85.97 13.35
13:52.6 13.146 73.21 366.6 86.37 13.355
13:52.8 13.165 73.21 349.9 87.04 13.36
13:53.0 13.185 73.47 355.1 87.25 13.365
13:53.2 13.204 73.89 335.6 87.71 13.37
13:53.4 13.221 74.29 318.3 88.27 13.375
13:53.6 13.239 74.1 317.8 88.75 13.38
13:53.8 13.257 74.29 319.6 89 13.384
13:54.0 13.273 74.74 297.6 89.36 13.389
13:54.2 13.291 74.34 313.2 89.52 13.394
13:54.4 13.308 74.79 321.1 89.75 13.399
13:54.6 13.324 74.59 285.8 90.23 13.404
13:54.8 13.34 75.01 290.5 90.47 13.409
13:55.0 13.357 75.08 298.6 90.62 13.414
13:55.2 13.374 74.87 311.4 90.98 13.42
13:55.4 13.391 75.11 302.1 91.02 13.425
13:55.6 13.407 75.37 293.6 91.24 13.43
13:55.8 13.423 75.29 283.7 91.5 13.435
13:56.0 13.423 87.54 5.5 91.11 13.44
13:56.2 13.423 88.33 -5.8 90.39 13.445
13:56.4 13.423 88.73 1.1 89.55 13.45
13:56.6 13.423 89.01 -0.4 88.72 13.455
13:56.8 13.423 89.26 0.4 87.9 13.46
13:57.0 13.423 89.48 -1.6 87.12 13.464
13:57.2 13.423 89.66 1.4 85.97 13.469
13:57.4 13.423 89.83 0.9 85.37 13.474
13:57.6 13.423 90.01 0.4 84.25 13.479
13:57.8 13.423 90.16 -2.9 83.43 13.483
13:58.0 13.423 90.31 1.2 82.76 13.488
13:58.2 13.423 90.44 -0.8 81.72 13.492
13:58.4 13.423 90.55 -0.7 80.93 13.497
13:58.6 13.423 90.69 0.4 80.36 13.501
13:58.8 13.423 90.83 6.3 79.68 13.506
13:59.0 13.423 90.94 -1.4 79.01 13.51
13:59.2 13.423 91.07 3.4 78.37 13.515
13:59.4 13.423 91.15 0.6 77.75 13.519
13:59.6 13.424 91.29 2.4 77.06 13.523
13:59.8 13.423 91.36 -0.9 76.42 13.527
14:00.0 13.424 91.48 0.5 75.76 13.532
Still working on getting full power from this setup, both battery's and controller are short of peak power, but already have to be carefull of wheelies and wheelspins in series mode!
Hope you find it interesting,
Steve
PS, on another note, Jozzbikes Aprilia is up for sale in the UK, see website for more info:)
Bogan:
looks pretty cool, any chance of some pics of the bike?
Jozzer:
Its currently having a fairing made for it (more streamlined), but heres a walkaround as it was last month..
Electric Ducati walkaround from Jozzbikes.
NewAge:
Hey Steve, could you please provide me with a simple analysis of the two speed principle you mention on your website, running in series then parallel?
I'm having a little trouble grasping the concept ??? does it require pre setting or can it be switched on the fly while riding or ???
skadamo:
Hey, thanks for posting Steve! The Ducati looks great so far. The series/parallel information is very interesting I've been to your site and it has tons of great information.
NewAge, I was reading this post which might help explain it. I would like to hear more about how it works. Is this what you are doing with your Ducati?
--- Quote ---The first half of the track the motors are connected in series and both motors get the full current and thus give the full torque. About half way down the track the motors need more voltage to continue to accelerate and it shifts electrically so that the motors are in parallel and get the full voltage to reach higher speed.
--- End quote ---
http://iloapp.evahakansson.se/blog/www?Home&post=38
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