In reality I'd prefer to have my sense of hearing being able to tell me when there is a bike close by to back up my eyesight. The armature rotates with the drive shaft and the stator 'stays' put. 3 years ago
This is fast and fun and only requires basic hand tools. It is registered and insured in CA as a modified 250. So part of the main excel document has a wire sizing calculator in it that I used to make the graph detailing power loss vs wire gauge above. Using 20 amp-hrs from a 40 amp-hr pack will give you a DOD of 50%, but it would only be a 25% DOD from an 80 amp-hr pack.
On the other hand batteries are consumables and spending money on a regen controller (which is not a consumable) would permanently add to your bike's range.
7 years ago Getting them in person saved me even more on having them shipped from an internet supplier. Loud bikes and quiet bikes have similar rates of all types of accidents.
I shall remain firmly in the loud pipes save lives camp. As I said, any study can say whatever it wishes.
1 year ago To build an inexpensive electric bicycle, you'll need a bike with front-disc brakes and wide handlebars, an electric bicycle conversion kit, and a 36- or 48-volt battery. College research labs and professional racing teams know all kinds of fascinating information, but they choose to share it in long boring doctoral thesis papers, if they share it at all. : Converting a motorcycle to an electric vehicle is not as difficult as you might think. on Dear friends, is it possible to use a car dynamo (without the AC converting part) as an electric motor for a bycicle conversion? Loud pipes do not save lives. For applications where the motor only spins one direction (such as a motorcycle), plug braking is unnecessary.DC motors consist of one set of coils that moves called an armature located inside another fixed set of coils or (permanent magnets), called the stator. To my delight my graph matched the shape of Tesla's own range vs speed graph to the dot.
Nice.Having 8+ years riding a nearly silent electric motorcycle in the Washington, DC and NYC metro areas I assure you that other vehicles do not cut me off any more than they do when I'm driving a car.
Keep a jar or bucket handy to collect all the nuts, bolts, washers, etc... You will need most of these bits later.The frame requires some modification to accomodate the AC motor and batteries. At the end of step 3 there is an XL document called 'Electric Motorcycle Calculations.xls' Its a big document but inside on the tab called 'real budget' there is a link to where i purchased everything. on A lot of people did a double take when I drove by because it was so quiet. The end user's monetary operating cost is not a good measure of the environmental and human health cost of operating that vehicle because it does not account for externalities, subsidies, and the like.Electric vehicles are better than gas from an efficiency standpoint at the vehicle level and arguably also at the well-to-wheel energy efficiency level. If you have a more custom bike project & want to learn about motorcycle dynamics, then I recommend this book: One funny thing I learned is that after having done all that work to figure out the power consumption of the finished bike I could have just used a rule of thumb to estimate it. In the end the calculations, design, & build time took 6 months of intermittent work, which was much longer than I originally planned. I measured the position of my head in the upright and crouched positions to determine what angle to mount the windshield at. Reading every single word in this instructable should suffice. On the other hand, your hub motor can't take advantage of an optimized transmission system. If you've enjoyed my work then I've love to hear from you! Reply
The motor won't have any resistance unless it is generating electricity, and it won't generate electricity if it isn't connected to a load.
Its electric motor- sprocket-chain-sprocket - wheel
Reply This step is complete when you've done the math, know what you want and where you will put it, and you order all the electronic parts.This is the 'sweat & be frustrated' part. Once again, there is much less choice here than there first seems to be.