Quad bike EV
Quad bike EV
Hi There
I am considering modification of an old Yamaha 250cc quad bike to EV.
I have a neurological condition which makes my right foot useless on the quad bike foot brake, so I want to construct a unit which slows down maximally when I ease off the throttle. Am I right in thinking that an AC system with regenerative braking would be my best option?
I would welcome advice on regenerative braking, particularly at slow speed appropriate to travelling at under 10 kph over rough paddocks. Would I be right in thinking that braking will be more effective at higher speeds? Will it be effective at very low speeds?
I am considering the Motenergy ME1117 motor and Sevcon controller.
Advice welcome
thanks
Rob
I am considering modification of an old Yamaha 250cc quad bike to EV.
I have a neurological condition which makes my right foot useless on the quad bike foot brake, so I want to construct a unit which slows down maximally when I ease off the throttle. Am I right in thinking that an AC system with regenerative braking would be my best option?
I would welcome advice on regenerative braking, particularly at slow speed appropriate to travelling at under 10 kph over rough paddocks. Would I be right in thinking that braking will be more effective at higher speeds? Will it be effective at very low speeds?
I am considering the Motenergy ME1117 motor and Sevcon controller.
Advice welcome
thanks
Rob
- jonescg
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Quad bike EV
Yes, AC will be the way to go here. What power does the bike currently make? A Motenergy dual stator motor should be good for 15 kW all day long, and 30 kW peak (40 hp). No doubt plenty for a quad.
AC will allow you to enjoy regenerative braking as you throttle off with a few simple settings on the controller. You can set the maximum regen torque to anything you like, but as a general rule on motorcycles, about 10% of peak forward torque is heaps.
Get in touch with Geoff O'Toole from GT Tooling - he's based in Sydney but has built some electric quads before.
AC will allow you to enjoy regenerative braking as you throttle off with a few simple settings on the controller. You can set the maximum regen torque to anything you like, but as a general rule on motorcycles, about 10% of peak forward torque is heaps.
Get in touch with Geoff O'Toole from GT Tooling - he's based in Sydney but has built some electric quads before.
AEVA National Secretary, WA branch vice-chair
Quad bike EV
None of the Yamaha documentation I have indicates power, but I would expect perhaps 7kW max from an old 250cc single cylinder 4 stroke bike engine. And I currently run it at very low power in 1st or 2nd gear - nowhere near max revs.
This quad is used for slow travel over rough ground, so I have no worries about power. I suspect 5kW would suffice. The typical duty cycle involves travel at fast walking pace, with a lot of stop-start as I spot spray weeds, check fences, and open/close gates etc.
This quad is used for slow travel over rough ground, so I have no worries about power. I suspect 5kW would suffice. The typical duty cycle involves travel at fast walking pace, with a lot of stop-start as I spot spray weeds, check fences, and open/close gates etc.
Quad bike EV
Can regenerative braking offer any braking at zero speed?
I.e. when I stop on a slope, will the AC motor with Sevcon controller offer any resistance to rolling away?
Rob
I.e. when I stop on a slope, will the AC motor with Sevcon controller offer any resistance to rolling away?
Rob
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Re: Quad bike EV
Did you proceed with this project?
What was the outcome?
I have plans for a similar project, but apart from the bike, have little to go on.
What was the outcome?
I have plans for a similar project, but apart from the bike, have little to go on.
- Richo
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Re: Quad bike EV
Welcome Tony from West Oz.
Rob hasn't been on here for 2 years.
I'd reckon it's a low probability that anything happened.
You're better off starting a new thread in technical discussions outlaying what you want you eV to do and then everyone can put in their 2c.
Rob hasn't been on here for 2 years.
I'd reckon it's a low probability that anything happened.
You're better off starting a new thread in technical discussions outlaying what you want you eV to do and then everyone can put in their 2c.
Help prevent road rage - get outta my way! Blasphemy is a swear word. Magnetic North is a south Pole.
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Re: Quad bike EV
Thanks Richo. I have started a new thread.
Tony
Tony
Last edited by rhills on Fri, 09 Feb 2018, 19:04, edited 1 time in total.
Reason: Added link to new thread
Reason: Added link to new thread