New bike - electric! - Toyota Yaris Forums

cali yaris · 06-15-2013, 04:00 PM

Always tinkering with some new idea. This is a pretty fun ride. 500w 36v 12aH, FWD electric bike. Thanks to John Kuchta for the excellent fabrication work.

Shroomster · 06-15-2013, 08:52 PM

Lazy! Lol

Does it have regenerative braking :-P

Looks pretty sweet all joking aside.

Golddeenoh · 06-15-2013, 09:50 PM

Quote:

Originally Posted by Shroomster

Does it have regenerative braking :-P

Given that the motors are directly in the wheel it looks like it should be quite easy to make some sort of diode bridge and redirect the counter electromotive force generated on negative acceleration back to the battery through an AC/DC converter(might be a little redundant since the bridge can do the same thing) and recharge the battery.

cali yaris · 06-15-2013, 10:38 PM

Quote:

oes it have regenerative braking :-P

Nope. That would require more electronics. i'm not that far along yet. It's got about a 20 mile range as is, and that's with regular SLA batteries.

Golddeenoh · 06-15-2013, 11:03 PM

Quote:

Originally Posted by cali yaris

Nope. That would require more electronics. i'm not that far along yet. It's got about a 20 mile range as is, and that's with regular SLA batteries.

um....i already gave a brief explanation of how to do it so yea, now you have to figure out the details :P

cali yaris · 06-16-2013, 12:39 AM

^ Thanks

*Astroman* · 06-16-2013, 02:33 AM

Sweet

but where are the brakes?

cali yaris · 06-16-2013, 01:06 PM

^ Coaster brake.

CTScott · 06-16-2013, 06:06 PM

Time for some super caps (like the 4 lb pack I am running in Crashy2, in place of the OEM battery), instead of the SLA for some serious weight savings, and the easy ability to do regenerative braking.

xnamerxx · 06-16-2013, 07:46 PM

Nah pickup a bunch LiPOFe4 cells and make a nice battery pack.

I've been tempted to make a battery pack out of a bunch of leftover A123 cells I have. Nothing like 100+ cells sitting around to make you think of the possibilities.

Garm if you cut the power to the electric motor it should work as a pretty decent generator(DC) and a semi functional brake as well.

cali yaris · 06-17-2013, 01:37 PM

The kit will support up to 60v, which means I'm just getting started at 36v. Might try bumping it up to 48v first.

Range extension will be a future project, right now 20 miles gets me back and forth to work 3 days in a row without charging. Not bad. And pedaling extends the range greatly.

Fun toy!

Golddeenoh · 06-17-2013, 02:28 PM

what is the generating out put of the electric motor?

cali yaris · 06-17-2013, 03:19 PM

post #1:

Quote:

500w 36v 12aH

Golddeenoh · 06-17-2013, 04:40 PM

i see, that should be enough to daily commute as long as you don't have any steep hills, then it gets all leg power. 12aH seems kind of low for rapid recharging, might have to amplify the out put to get the best benefit out of it.

kou · 06-21-2013, 10:21 AM

This for getting to work on time even when your a day late.

tooter · 06-21-2013, 12:40 PM

Hey Garm,

Cool bike!

That's perfect for semi level Valley transportation. What size are your rims? Large reductions in rolling resistance can be had with light tires which are rated at high air pressure. Bikes are similar to cars in that one ounce of reduced rolling weight is equal to about 9 ounces of static weight. Weight reducing alloy components can also really add up, like handlebars, rims, seats and seat posts.

cali yaris · 06-21-2013, 01:26 PM

^ 26" wheels with "Thick Brick" tires. This one is fine for my 3 mile commute to work. I have a few small things to do (rear rack, etc.)

My next one will be an ultralight carbon eBike.

06-15-2013, 08:52 PM	#2
Shroomster '07 to '12:2 wipers to 1? View User's Garage Drives: '12 5-door LE & '14 5-door LE Join Date: Apr 2007 Location: Orlando Posts: 1,999	Lazy! Lol Does it have regenerative braking :-P Looks pretty sweet all joking aside. __________________ MicroImageonline forums - Shroomster Xda Forums - Shroomster Androidforums - Shroomster I'm noticing a pattern......

06-16-2013, 12:39 AM	#6
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ Thanks __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

06-16-2013, 02:33 AM	#7
Astroman Modded Moderator View User's Garage Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007 Location: Wenatchee, WA Posts: 3,670	Sweet but where are the brakes? __________________ Please visit my online store for computer stuff and Official Yarisworld decals!

06-16-2013, 01:06 PM	#8
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ Coaster brake. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

06-16-2013, 06:06 PM	#9
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Time for some super caps (like the 4 lb pack I am running in Crashy2, in place of the OEM battery), instead of the SLA for some serious weight savings, and the easy ability to do regenerative braking. __________________

06-15-2013, 04:00 PM	#1
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	New bike - electric! Always tinkering with some new idea. This is a pretty fun ride. 500w 36v 12aH, FWD electric bike. Thanks to John Kuchta for the excellent fabrication work. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

06-16-2013, 07:46 PM	#10
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Nah pickup a bunch LiPOFe4 cells and make a nice battery pack. I've been tempted to make a battery pack out of a bunch of leftover A123 cells I have. Nothing like 100+ cells sitting around to make you think of the possibilities. Garm if you cut the power to the electric motor it should work as a pretty decent generator(DC) and a semi functional brake as well.

06-17-2013, 01:37 PM	#11
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	The kit will support up to 60v, which means I'm just getting started at 36v. Might try bumping it up to 48v first. Range extension will be a future project, right now 20 miles gets me back and forth to work 3 days in a row without charging. Not bad. And pedaling extends the range greatly. Fun toy! __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

06-17-2013, 02:28 PM	#12
Golddeenoh Takes corners too fast! View User's Garage Drives: Absolute Red 2009 Yaris HB Join Date: Apr 2012 Location: Columbia, SC Posts: 830	what is the generating out put of the electric motor? __________________ mods:15''Drag DR21 w/Nitto NeoGen 205/50R15, Tanabe DF210 lowering springs 1.6/1.8, TRD Rear Sway Bar, Tanabe Front Sway Bar, Micro Image Short Throw Shift Kit (both in and under), 8.64lbs flywheel, F1 Stage 4 Clutch, AEM Cold Air Intake (Red), Megan Racing Header, DC Sports Axle Back Exhaust, Micro Image Crank Pulley, NST lite Alternator Pulley, ARP Manifold Stud Kit,Tanabe Front Strut Tower Brace, ScanGuage II, Micro Image Silicone Radiator Hose Kit (Red), NRG Carbon Fiber Shift Knob (round), 2009-2011 Toyota Yaris Liftback Foglight kit, NRG Grounding Kit (Red), Hella Horns(Red),CF Hood

06-17-2013, 04:40 PM	#14
Golddeenoh Takes corners too fast! View User's Garage Drives: Absolute Red 2009 Yaris HB Join Date: Apr 2012 Location: Columbia, SC Posts: 830	i see, that should be enough to daily commute as long as you don't have any steep hills, then it gets all leg power. 12aH seems kind of low for rapid recharging, might have to amplify the out put to get the best benefit out of it. __________________ mods:15''Drag DR21 w/Nitto NeoGen 205/50R15, Tanabe DF210 lowering springs 1.6/1.8, TRD Rear Sway Bar, Tanabe Front Sway Bar, Micro Image Short Throw Shift Kit (both in and under), 8.64lbs flywheel, F1 Stage 4 Clutch, AEM Cold Air Intake (Red), Megan Racing Header, DC Sports Axle Back Exhaust, Micro Image Crank Pulley, NST lite Alternator Pulley, ARP Manifold Stud Kit,Tanabe Front Strut Tower Brace, ScanGuage II, Micro Image Silicone Radiator Hose Kit (Red), NRG Carbon Fiber Shift Knob (round), 2009-2011 Toyota Yaris Liftback Foglight kit, NRG Grounding Kit (Red), Hella Horns(Red),CF Hood

06-21-2013, 12:40 PM	#16
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,961	Hey Garm, Cool bike! That's perfect for semi level Valley transportation. What size are your rims? Large reductions in rolling resistance can be had with light tires which are rated at high air pressure. Bikes are similar to cars in that one ounce of reduced rolling weight is equal to about 9 ounces of static weight. Weight reducing alloy components can also really add up, like handlebars, rims, seats and seat posts.

06-21-2013, 01:26 PM	#17
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ 26" wheels with "Thick Brick" tires. This one is fine for my 3 mile commute to work. I have a few small things to do (rear rack, etc.) My next one will be an ultralight carbon eBike. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

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