Welcome to the performance electric zone
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This is the ongoing progress of Performance EV conversion projects,
both 2 and 4 wheel types.
I hope that sharing this detail will help encourage others to go electric by showing what is available and possible.
We are approaching an era of high performance with little environmental impact. You can now expect more from pure electric vehicles, both on and off road...
These two conversion projects (the BMW and the motocross bike) are being done for different reasons but with the common intent to meet or exceed their original performance.
In the case of the BMW, elimination of fuel use and it's emissions was the goal.
In the case of the CRF2eR, noise reduction was the original motivation. Since there is not that much fuel used by most riders, relatively speaking, reducing fuel use is not as important.
On the other hand, just getting to a riding area at $4/gallon is now significant.
This will now allow riding in high density areas and indoors, creating many more riding opportunities.
It turns out that both have many other side benefits from the electric drive system that makes the outcome even more dramatic.
We can now speak from direct experience about how this off road electric MX bike rides and performs. It has great potential for new riding opportunities, not yet replacing petrol powered bikes. But, it may just be a matter of time before improvements in energy density changes that. Check this out: http://news-service.stanford.edu/news/2008/january9/nanowire-010908.html
Most recent activity/update on top:
Click on images to view full size or follow link
October 20, 2008The motor is mounted to the transmission and placed in position.. --> |
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September 21, 2008The motor returns, the results are good. The drive train is on the final stretch. --> The CRF2eR is going together with the new custom components Steady progress with the BMS, next update I will have something to show for it... The "nose is to the grind wheel" |
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August 15, 2008A progress update: BMS development: Delivered 2 Li Ion packs to university programs 1. OSU solar vehicle battery pack and, 2. University of Vermont for their hot AERO car I am nearing completion of the 2nd rev BMS board that will update the current BMS installations as well as go into the BMW pack modules, soon to be ready. CRF2eR: Weight loss program nearing completion We have been preparing battery packs and misc HW while waiting for deliveries from CNC mfg shops. The last items have just arrived and will assembled soon to allow our testing to resume.
BMW project: Nearly all sections updated The motor delivery is running behind and I will update the motor page as soon as it arrives. |
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June 23, 2008The final EV component: The 200kW inverter arrives The fit is immediately checked with great results --> |
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June 07, 2008Mounting the motor to the transmission --> Mounting of the charger and it's new thermal mate, the air conditioning compressor motor drive The new home for the DC/DC converter is discussed A breakthrough in the fitting of the Inverter The locations are nailed down for 3 more of the 10 EV components I am working on the BMS circuit board assembly process, soon to power it up... |
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May 19, 2008The motor has arrived and helped get the BMW project back in motion.
Took a break and ran the annual Pole Pedal Paddle race at Mt Bachelor last weekend. Mini Slide show |
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May 9, 2008Battery Management system and general update This has been dominating my PC display latley--> Regarding the BMW, I am picking up the motor in mere days and I am told next week the Inverter will ship... Added some more detail on the battery range discussion in the previous update from Mar 8 2008 |
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Mar 8, 2008Progress update - a new look More details described about the drive system Answers to the most common forum questions |
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Feb 24 , 2008The testing has confirmed our assumptions and expectations about the performance of this machine Here are some action photos-->
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Feb 16 , 2008The first prototype rolls out on its own power... The testing begins with a great start. Here are some images of the final prep -->
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Feb 02 , 2008Still a few weeks away from delivery of the BMW motor/drive system... So we are busy with the final work needed to officially test the CRF2eX performance to verify the full current capability. Here is what we have been doing for the last couple months --> |
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Dec 22 , 2007Added a new links page with related technical articles in addition to the original EV conversion links. |
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Dec 15 , 2007We are busy with construction of the battery boxes and mounting of the motor control in the CRF2eX. The motor and drive system is nearly complete. Learn More |
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Dec 14, 2007Some new equipment arrives. Learn more about the battery cell welder shown on right.
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Nov 20, 2007The first of the BMW EV components arrive. |
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