Wednesday, March 8, 2017

Batteries for e bikes


100 kWh? LiFePO4



It's about time they manufactured large cells with bolt conections! These are bigger than 18650 cells. But I can't help wanting fire proof insulation between the cells.

The only problem is that you can't get these free out of old computer packs. 
And some people are telling me that these cells are not as potent as the sellers want you to believe.


These are considered safer when compared to lithium oxide or mixed oxide battery products. Punctured or short circuited lithium metal oxide cells will cause heating, oxygen release and the potential for thermal runaway.

Tesla is about to start manufacturing mass quantities of these new batteries to bring the price down a little. It looks like the chimistry of these bolt end cells are already old tech, not that it matters much. The Iron Phosphate LiFePO4 chimistry is safer to use than the magnisium, but heavyer. I would choose the weight over the danger.

What chemistry is the Tesla 2170 cell? LiFeMgPO4 Lithium Magnisium Phosphate?

By 2018, Tesla's new “Gigafactory” will produce 35 GWh/year of lithium-ion battery cells, nearly as much as the rest of the entire world’s battery production combined. And there are several other companies racing for the claim of .highest energy density/cheapest cell in the world” also.

But will they have bolt ends? Not likely! So how do they connect the cells in the cars?

The new ‘2170’ is 21mm (13/16th inch) by 70mm (2¾”). Smaller than these bolt end cells that are about a 1.5” diameter by 4” long. But larger than the old 18650 cells (17mm x 67mm).



Lithium batteries should regularly be recharged because high batteries lead to oxidation of the anode and low batteries leads to the disintegration of LiNiCoAlO_2. This makes lithium batteries very sensitive. Research has been showing that with two 50% depth of discharge (DOD) cycles, the battery lifetime is about four times longer than one 100% DOD cycle.

The Myth of Ebike Wattage

How to make an inexpensive Lithium-Ion Battery Pack



Monday, March 6, 2017

Torque Sensor or Speed Sensor?

torque sensor


A torque sensor can increase the range of you e-bike. And they will keep the law enforcement from classifying your vehicle as a moped. But they are not cheap.

Torque or strain sensors, so the bike cannot be driven with out pedaling, are not absolutely necessary but every thing helps when it comes to building a legal vehicle.

But you don't really to need to sense the pressure on the pedals, you can use a Cadence sensor, it is the same as the speed sensor; when the crank arm passes a magnet it sends a pulse to the controller.

However torque sensors apply power more smoothly than a cadence sensor. On a quality torque sensor, you can forget the bike is electric, the bike just becomes easier to pedal. The harder you push on the pedals, the faster you go like on a regular bike, but with the electric power you just go a lot faster.

One method to build a pressure sensor involves using the CycleAnalyst, but needs you to build a chain idler for the top chain of the bike, then attach a strain gauge to the arm the idler is mounted to, and program the CA to work off it's input range.

Electric bikes are generally super inefficient when accelerating up to speed. A torque sensor forces you to help the ebike when it needs it the most, when it is accelerating and when climbing



speed sensor

In the state of Washington a speed sensor connected to the controller to calculate wheel speed, is absolutely needed if your gear ratio, in conjunction with the motor's maximum RPM, is enough to move the bike faster than 20mph on flat land. That is one reason why washington state e-bike laws must change!

DIY Torque Sensor Pedal Assist!

Torque Sensors on Electric Bikes





Some brushless motors will produce more than twice the wattage that is on the label. Making it even more difficult to engineer an e-bike.
BionX 250 and 350 are both nominal wattage ratings. Those who have ridden them know that they give much more power when climbing hills. I have measured well above 1000 watts with a Watt's Up meter spliced between the battery and motor.


washington state e-bike laws must change






Thursday, February 16, 2017

Motored Cycle-Truck vs Fast bike Fetishism

http://www.notechmagazine.com/2010/06/tandem-cargo-tricycle-1940.html


What is the difference between a motorcycle and a 600lb utility bike?
If you think it is the power of the motor, you are wrong!

    • One has the ability to drive faster than 20mph on flat land. A motorcycle must be able to drive at least 45mph on flat land, and is engineered with fantastic brakes to handle the increased power. Usually two large hydraulic brakes on the front wheel.
    • A bicycle will never be able to stop with the power needed to climb steep hills with cargo like 400lbs. Rim brakes are useless and cable pull disc brakes are not much better, even with metal sintered pads!
    • And if you did make the wheel stop turning the top heaviness of the vehicle could make you loose control too easily. Not really a problem for off-road bikes because that is exactly what makes it fun.
    • The cycle-truck has the ability to climb hills with a total combined weight of 600lbs with only one single gear; Set at a slow enough reduction ratio (about 12mph or less with 1500 watts) to climb your worst hills with the most weight you will need to replace a car.
    • People that think gears waste energy, are brainwashed by speed merchants. (Hub-motors are built for racing, not for stop-n-go city driving.)
    • Some states make e-bikes use a pedal actuated controller, to make sure you can't drive over the speed limited by law. But gears them self's can limit the vehicle's speed, simply because the motor cannot move faster than a specific RPM with out damage.


People that wait until it is too late to change their life style will pay for it the hard way.

There is no reason that people can't start changing their transpiration methods now.
Electric bicycles that can move 600lbs up our steep hills can replace a car. Obviously not many people know how to build these. But I do! Read my 13 year old non-profit blog about living with out petroleum powered vehicles!


Most people lost their ability to think creatively in school. We were taught to memorize data like a machine. If you want to learn to use your brain fully you have to learn to think “laterally”. 



https://www.alibaba.com/product-detail/China-3-Wheel-Electric-Motorcycle-Truck_60421307707.html

Saturday, February 4, 2017

Electric Utility Bike

https://endless-sphere.com/forums/viewtopic.php?f=3&t=75880

This is the best utility bike frame I have seen yet. But it does need a rack welded onto the front of the frame. And a motor mounted low under the seat, to drive the rear wheel. Hub motors are for flat land only!

The rear rack should be long enough to hold a large size milk carton box. Once you have more carrying capacity you will want even more. Also a ladder rack on the side, would be very good to have.

An easy step-through frame is essential for a fully loaded bike! This fork design is for strength rather than travel, it is not an off-road suspension. But excellent for riding off curbs and pot holes. And at high speed, if you hit a pothole with a heavy load on the front, you could end up with broken spokes or even a dented the rim.

The front wheel will be easier with a drum brake hub. Rim brakes or a disc brake will be difficult to apply to the front suspension with out a jig. And be sure to use the widest rims so you can use 16” Moped tires.

The slower you ride the shorter the trail should be. I had to change my recumbent to half inch trail because I really noticed wheel flop when climbing hills too slowly. My utility bike has 1.3” trail. Any thing over 2” is for fast cruising.

Read more here:

Building a compact cargo bike





rear suspension

rear suspension






fork verticle arms

fork lateral arms

Saturday, January 7, 2017

Wheel chairs ment for travel






A wheel chair that is also an all-terrain trike. The arms ratchet the wheel gears forward. It could use a motor on a Jack-shaft or two hub motors but you won't get any exercise that way. http://www.mountaintrike.co.uk/

There are a lot of “concept” vehicles. Most never get funded because the designers have no knowledge of what it takes to actually build one. I would like to see more concepts deigned by engineers! http://www.lovethesepics.com/

This one is for people who still have the ability to use their legs? There’s a version of this wheelchair that is steered only with the arms, but we couldn’t find any images of it. http://www.customfaucets.com/services.html


























Monday, November 14, 2016

MTB to e-Road bike:

full suspension longtail cargo bike in video 
https://www.youtube.com/watch?v=M1hVtEVQNvA


video


Converting a mountain bike to a electric road bike, is not has hard as you might think. Hub motors climb hills with cargo much better when built into a 20” wheel. And they need suspenstion.

  • Steel Suspension MTB frame made for 24”-26” wheels. Make sure that it takes a disc brake in the rear.
  • Longer spring loaded oil shock to push the drive axle down about 3 inches. But you may not even need as much road clearance for the pedals as on the MTB. And you could to get 155mm cranks arms.
  • Fork for 20” wheels. It may need a longer head tube extension welded on.
  • 16” x 2.25-2.5” (21” o.d.) 4-ply Scooter tires will fit on a 1.25” bicycle rim.
  • Wide bicycle fenders are a maximum of 2.25” wide for 26” tires. They bend easy with only a little heat.

I put a 19” (23”o.d.) x 2” wide moped tire on a 19”motorcycle rim for my MTB-cycletruck frame made for 24” tires. So a 17” x 2.5” tire would probably fit fine with out lowering the crank too much. Measure the clearance for a 2.75” wide tire.

Do not put a larger diameter tire in front than the rear unless you can keep the steer angle the same. If the trail increases with out more rake, it will cause steering problems (wheel flop).

20" wheels on mtb frame?



it can be very hard to find a frame
that will fit a 20" wheel

http://weldandbraze.blogspot.co.at/2013/07/it-works.html





Thursday, November 10, 2016

what they don't want you to know

Is this cynicism, naiveté, satire, or just the unbearably horrifying truth? It all depends on how passive you are.


video


'Interstate cross check' is how they stole the election. Thousands of people's votes were thrown in the trash just because there were people in other states with the same or similar name!!!! So now if you want your vote to count. You have to change it to a totally unique name, one that no one else the US has!



And the media like fox TV gave him something like 3 billion dollars worth of free airtime. 



https://twitter.com/kingdonaldtrum1

What happens when the rich are confronted by a truth-teller politician (Bernie Sanders)? They had to pay a 
Neo-McCarthyist con-man to sell austerity by demonizing 'foreigners' and the 'social safety net just so they can shock us into confusion so we don't know what is happening. Bypassing the rational side of our minds! Mind control works best on people that are dependent on the money system.


Crashing the economy, defunding education and the social safety net just so they can say it is broken and needs to be privatized will only serve to accelerate Capitalism’s end.

Even now many people fail to grasp the true meaning of the word “austerity”. Austerity is not eight years of spending cuts, as in the UK, or even the social catastrophe inflicted on Greece. It means driving wages and living standards down in the western world, for decades until they meet those of the middle class in China and India on the way up.

How Capitalism Is Dismembering America

Politicians trying to shift the blame away from their financiers have referred to the lowest-income 47% of Americans as the "takers," who enjoy government benefits at the expense of the high-earning one percent. But their claim is meaningless. The total amount paid out in 'welfare' (Temporary Assistance for Needy Families) is less than the investment income of just three of the most rich in a single year.


Market capitalism is predicated on a set of presuppositions that are simply no longer viable given emerging technology. Everything the market expects in it's system structure, is being made obsolete. Think about customized Printable devices.



Political arguments presented by Lenin in the pamphlet Imperialism, the Highest Stage of Capitalism depict imperialism as the logical extension of geopolitical power, to meet the financial investment needs of the political economy of capitalism. And neo-imperialism as the practice of using capitalism, globalization and cultural imperialism to influence a developing country in lieu of direct military control (imperialism) or indirect political control (hegemony).


“Neo-liberalism” (Neo-Imperialism) has morphed into a more aggressive system (neo-fascism) programmed to inflict recurrent catastrophic failures on us. This is disaster capitalism's “shock doctrine”; the tool that the rich use to coerce us into submission.


Most of us have learned helplessness. Which means they will do nothing; not even passive resistance is possible if you believe that nothing can be done to stop them. The only chance we have, is to take charge of our own life support system in a collective structure.


The coming wave of automation, currently stalled because our social infrastructure cannot bear the consequences, will hugely diminish the amount of work needed; not just to subsist, but to provide a decent life for all.




However free information is corroding the “market’s” ability to form prices correctly. That is because “markets” are based on scarcity while information is abundant. The system’s defense mechanism is to form monopolies (coemption) of socially produced information. Constructing a fragile corporate edifice at odds with the most basic need of humanity, which is to use ideas freely, helping imperial capitalist's grasp on our economy collapse.


A whole business subculture has emerged over the past 10 years, which the media has dubbed the “sharing economy”. A good example would be a “recyclery” or a small garage business that re-configures recycled bikes into utility cycletrucks to give to people that will use them inplace of petroleum powered vehicles, or making them for a bike share project; subverting consumerism!


The old business paradigm of selling services without sharing the knowledge of the parts that can be done by the buyer, is on its way out! If communities can't learn to work together they will not survive!
Mainstream economics proceeds from a condition of scarcity, yet the most dynamic force in our modern world is abundant information. 





Market imperialism (neo-fascism) justifies it's existence by the recognition of the need to manage scarcity; but due to it's structural mechanics, actually promotes and rewards infinite consumption.

The business models of all our modern digital giants are designed to prevent the abundance of information.


Information is a machine for grinding down prices of things needed to support life on the planet. It is the “externalizations” of un-ownable information, and well-being generated by networked interaction and the rise of subculture production that will subvert repressive neo-fascist capitalism.


If we cannot implement a functional system built on abundant information, non-hierarchical work and the dissociation of work from wages; as well as force the imperialist banks to stop creating “Fictitious” capital. We will all suffer the oligarchy's plans.

The Libertarians are actually telling their followers that intellectual property should be protected. And that the “market” forces will sort things out and bring freedom to all of us, not just the oligarchy. People will believe anything, if you keep repeating how the Welfare and Medicare social safty-nets are broken. 




Trump-o-nomics
  • First, he will install import tariffs.
  • Second, the the jobs created by this will not be high paying enough to keep up with american produced goods.
  • Lastly there will be trade wars and finally shooting wars.
  • Worker co-ops are the only way out of this death spiral, but it will take many years for the transition. The British Worker's Party understands this but americans are too brainwashed.
Global Capitalism Trumps Plans for Jobs, Taxes, Trade


What is next for our so called democracy?


Crisis cults unleash further collective delusions; believers entranced with magical thinking.

Or just more demonizing of the disabled and poverty stricken to distract us from how the corporate fascists are controlling our minds? Psychology of control, State of Mind



The end of capitalism has begun

Some really good books for learning the truth:


Killing Capitalism
Dumbing Us Down: The Hidden Curriculum of Compulsory Schooling  by John Taylor Gatto

The Underground History of American Education: A School Teacher's Intimate Investigation Into the Problem of Modern Schooling

A People's History of the United States: 1492 to the Present


If you want to remain slaves of the bankers and pay for the costs of your own slavery, let them continue to create money and control the nation's credit

Sir Josiah Stamp 1880-1941






Will Capitalism Destroy Civilization?

How Capitalism is Destroying Democracy


TheFailed ‘Reaganomics Experiment’ In Kansas Keeps Getting Worse

 “the Shock Doctrine”by Naomi Klein

Naomi Klein is right: Unchecked capitalism will destroy civilization




What is the electoral collage?

video


What is Gerrymandering?

video


What is capitalism?



video








What the rich don't want you to know:


video





video




Coemption is the process of buying up of the whole supply of a commodity for the purpose of obtaining a monopoly and controlling the price.


http://www.merriam-webster.com/dictionary/coemption