Electric Rickshaw Taxi

[TylerDurden]

Instead of having Hubmotor, there is something like this I've googled:
http://www.alibaba.com/product-gs/35032 ... motor.html

That style has potential.

A closed reduction could be helpful, although having the reduction separate from the motor could provide easier servicing (swap & repair). It might also be good to have a reduction that runs in an oil bath, for better cooling and lubricant change.

 

[numberonebikeslover]

Dear All;

One of my cousin who live in tribal area has made a small pickup truck using a very small petrol bike engine (70cc) having greater gear reduction. The truck doesn't have much speed (38km/hr) but it can pick great loads. I wish I had a camera to take pictures but the area is a lot backward and it would have offended the local people. I did some google search and have come to know that a 70 cc engine can produce 5 horse power. One horse power = 746 watt. So, 5 hp= 3730 watts.

Yes sir, Thats what I need (not less than 3000 watts)
feedback will be appreciated.

Respectfully
Naeem

 

[numberonebikeslover]

A closed reduction could be helpful, although having the reduction separate from the motor could provide easier servicing (swap & repair). It might also be good to have a reduction that runs in an oil bath, for better cooling and lubricant change.

Oh yes indeed; I have bought a motorcycle engine (125cc Honda) from a junkyard years back. May be if the crank shaft + weight + connecting road etc removed and fitted with a 3000 watt motor will prove to be a better solution. As the gearbox already have a lubricant (changeable) and gear shifting ability to switch between four different gearing ratios.

Hows that, please give me feedback so that I could pick up my tools and start my work.

Sincerely
Naeem

 

[liveforphysics]

I think using a Honda gearbox as your reduction sounds like a fantastic idea.

 

[Zoot Katz]

Naeem, This image has often inspired me.
It is emblematic of the perseverance your projects epitomise.
Carry on Brother.

 

[Gordo]

Dear All;

One of my cousin who live in tribal area has made a small pickup truck using a very small petrol bike engine (70cc) having greater gear reduction. The truck doesn't have much speed (38km/hr) but it can pick great loads. I wish I had a camera to take pictures but the area is a lot backward and it would have offended the local people. I did some google search and have come to know that a 70 cc engine can produce 5 horse power. One horse power = 746 watt. So, 5 hp= 3730 watts.

Yes sir, Thats what I need (not less than 3000 watts)
feedback will be appreciated.

Respectfully
Naeem

Naeem;
My experience from building many portable air/hydraulic/water systems with either gas or electric has shown me that if 5 hp gas will drive it, you only need 2.5 hp electric. The theoretical 746 watts of electric are work horses not the pony's of gasoline. I believe 3000W will easily equal 5 hp petrol engine.

 

[M4K10]

I have been lurking about the forum for some time now but haven't had much reason to post anything. This thread and Naeem's ebike thread are extremely fun to follow. Anyway, during my normal hour of perusing my favorite tech blogs I came across a very cool post that I thought might have some relevance to your project. It is about an electric rickshaw that I thought might offer you some ideas. Here is the link http://www.engadget.com/2011/01/21/meguru-is-the-worlds-first-ev-rickshaw-it-didnt-know-it-needed/. Hopefully this can be of some help and or inspiration as you move forward with your project.

Good luck!
Nate

 

[TylerDurden]

I have bought a motorcycle engine (125cc Honda) from a junkyard years back. May be if the crank shaft + weight + connecting road etc removed and fitted with a 3000 watt motor will prove to be a better solution. As the gearbox already have a lubricant (changeable) and gear shifting ability to switch between four different gearing ratios.

Adapting moto gearbox seems very viable. You might return to the junkyard to see if a particular gearbox is most common there, to source interchangeable parts/assemblies.

It will certainly require some custom parts... that could be another area where your assistants can learn fabrication skills.

If you have access to CAD software, I'm confident other ES members can help you machine some parts if you can't find local resources.

 

[mushymelon]

Hi Naeem

I was thinking that using dual drivetrain one electric and one human powered may be a solution.
It would reduce the amount of resistance from the gearbox. Dual freewheel setup, it would be a nice backup system.
Syncing up your leg power to the electric power more efficiently.

Im just throwing out ideas, I have no real experience with this sort of thing.

Ride safe and have fun

 

[numberonebikeslover]

I have been lurking about the forum for some time now but haven't had much reason to post anything. This thread and Naeem's ebike thread are extremely fun to follow.

Thank you very much for the time you took to post your words of appreciation. About the link; I saw the rickshaw design, it is indeed a beautifully decorated one, with so much comfort for the passenger. Only that worries me is the ground clearance. Here in my place roads are a mess and what I want to achieve must have bigger wheels (motorcycle wheels of 17 size) and has powerful shock absorbing mechanism for a comfy ride. It definitely gives me a number of ideas to think about.

Thank you again.
Respectfully
Naeem

 

[numberonebikeslover]

Hi Naeem

I was thinking that using dual drivetrain one electric and one human powered may be a solution.
It would reduce the amount of resistance from the gearbox. Dual freewheel setup, it would be a nice backup system.
Syncing up your leg power to the electric power more efficiently.

Thank you very much for useful ideas. It is more precious for me to get ideas from members because it is just an idea which can change the lives of people specially the ones living in poor countries.

About the drive train, I must tell you that as per consultation and suggestions of the members I'm going to use four wheel so it will be more like a car taxi rather than a rickshaw taxi. Using the gear box will enable me to put as little stress as possible on the batteries so paddling is out of question. I might use a small petrol powered electric generator for emergencies where there is no charge to move the vehicle any further.

by the way I have used the same strategy in my Very low cost electric bike where I would plus my paddling power with the electric and achieve dangerous speeds (60 km/hr)

Thanks for your response.
Naeem

 

[numberonebikeslover]

naeem,
you should slow down the speed as it is not much needed indeed. it will help to cut down its cost.
well a good idea overall indeed.

Yes sir, I have noticed it my self while going through some of the posts here. That is why I decided to use a Honda gearbox. It will efficiently put less stress on batteries and motor. With little power I could get greater distance with little speed (slower).

 

[numberonebikeslover]

Hello every body;

I have made this design in the computer (using MsPaint) wow! it took me quite a while to do it overnight but it was something that I could forget so I had to do it in one go. four wheels and four passenger (including the driver) rear and front suspension. front suspension yet to be decided (light one).

 

[TylerDurden]

Hi Naeem, it looks good.

The front wheels/axle could be more forward.. it would help prevent the nose from hitting inclines and the passengers would not be directly over the axle (bumpy ride).

You might like to try some free software (Open Source) for illustration/design: Gimp.org, Blender.org.

 

[numberonebikeslover]

Hi Naeem, it looks good.

The front wheels/axle could be more forward.. it would help prevent the nose from hitting inclines and the passengers would not be directly over the axle (bumpy ride).

You might like to try some free software (Open Source) for illustration/design: Gimp.org, Blender.org.

Thanks Tyler, I appreciate your support. You always made me feel that I'm not alone. Most of the time you are the first to respond and I thank you for that.
About wheel you are very right about hitting the front edge while climbing something and also the fact that passenger would be right on axle and bear the bumps directly.
About blender software, I already have it and tried it. It will take me quite a while to learn it while i've been playing with MS Paint since I was a kid. So I'm quite expert in it.

 

[TylerDurden]

Hi Naeem, Your illustration in MSPaint is the best I have seen, but your concepts may require software tools that offer more features and precision.

Here is a free Tufts University course in Blender: http://ocw.tufts.edu/Course/57
This manual has techniques for precision work:View attachment precision_modelling_006.pdf
Blender is illustration, not CAD; but Michaleplogue does fine EV design work in a 3D illustration program. I am not nearly as skilled, but the programs help me visualize projects.


If you need CAD, Alibre Design is powerful and a good value. Many new designers/inventors are using Alibre.


GIMP is one of the most refined open-source applications in the world. Tutorials online are abundant.

Keep up the great work.

 

[numberonebikeslover]

It seems like it will take me a lot of free time to learn blender like software. I have so little time for my project therefore I find my self quite unable to learn such software. A time will definitely come when I will make models in it but right now I want to concentrate on achieving my objective in as little time as possible. What I have noticed is that I have a very strong imagination which help me do all what blender can do and I am so thankful to Lord for this gift.
Thank you very much Mr. Tyler for useful links, I have installed blender right a way, but it would take me time to learn it step by step.
Here is just a drawing of the top view of the frame.

 

[numberonebikeslover]

I simply can't believe my eyes:

http://www.youtube.com/watch?v=x8azNMWcjDs&feature=related

Respectfully
Naeem

 

[amberwolf]

Hi, Naeem, I've not seen you post in a long time, and have been wondering how you have been doing, and how you've gotten on with your projects?

 

[docnjoj]

Yes Naeem, those with good balance skills can do that with trikes. I'm not one of those folks. Good to hear from you again.
otherDoc

 

[dogman dan]

Wish we had heard from him again, actually.

Betcha he's far too busy producing some kind of badass velomobile to chat on ES.