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  1. C

    Madness. Why such slow penetration for hybrid?

    This is madness. Why such slow penetration for hybrid (optionally plug in) in areas where its a cost saving no brainer, like stop start utility vehicles? Instead of targeting obvious low hanging fruit, marketing and fantasyland tree huggers have hijacked EVs into some "statement" that clearly...
  2. C

    Got a big block to mow?

    A; simple, easier & I hope fresh way for a ~self propelled mower? Its not for all, but its cheap & one less fancy ice device in the shed. Seems to me we are drowning in them. Chainsaws, edgers, trimmers, outboards, ... Each is a fiddly time sink. Just tow a standard petrol mower with your...
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    plural-of-prius-prii ?

    https://www.cars.com/articles/2011/02/plural-of-prius-prii-not-according-to-latin-experts/
  4. C

    interesting 2016 link, hard to categorise, china EV cells

    There seems a good chance china will dominate making and using EVs globally. It seems the govt has mandated limn over lifepo4 for evs. (stupid, let the market decide) it seems industry there prefer pouch cells (as do I) over tesslaS etc. preferred cannister cell approach. "Summing up…...
  5. C

    heavy rider spokeless integrated hub motor. Discuss?

    I have reflected a lot on the fact that so many great candidates for bikes are handicapped further by exceeding mainstream bicycle design weight limits. Whatever the bike chosen, i read that big riders main weak spot is the rear wheel. re the below link (Proof of concept only): its a cast...
  6. C

    diamond encased nuclear waste as millenium+ batteries

    http://www.bristol.ac.uk/news/2016/november/diamond-power.html Present practicality aside, it seems an important, new?, fundamental building block component. just as a PV cell transduces light energy directly to electricity, this does from radiation. I guess its not new, whats new is a safe...
  7. C

    weight & efficiency dont matter for stationary green storage

    Obviously, but it bears repeating, weight is of no consequence for stationary power storage like off grid. Also logically, efficiency harnessing the power is ~irrelevant, if the solar or wind power stored is clean and free anyway. The math doesnt make sense to me I am afraid, but it seems...
  8. C

    seems a good anti theft bet. AUD$50 datadot kit

    http://www.nationalbikeregister.com.au/product/datadotdna-bicycle-kit/ http://www.police.nsw.gov.au/can_you_help_us/crime_stoppers the links relate to australia/NSW. Data dot may have similar initiatives elsewhere. The Oz national registry of bikes is maintained free by datadot allegedly. i...
  9. C

    all warm climate urban cars should be part hybrid

    "https://en.wikipedia.org/wiki/Automobile_air_conditioning In a modern automobile, the A/C system will use around 4 horsepower (3 kW) of the engine's power" Automatic stop start isnt going to happen on an ice car in gridlock w/ a/c on. all such cars should at least have sufficient electric...
  10. C

    Hybrid trains, cheap partial electrification, momentum~

    Its half baked, but what do u guys think? The forgotten infrastructure cost free propulsion method for trains it seems is gravity. Electrification is good it seems,but woo, the capital costs mean it never happens - in america anyway. But does every mile of track really need messy and...
  11. C

    I expected better energy numbers from TGV HSRail

    re: http://www.railfaneurope.net/tgv/eurostar.html specifically: Performance Metrics: 16 kW/tonne / 0.98 tonnes/seat / 15.90 kW/seat I guess a more meaningful metric would be kw per passenger km ~ but based on these numbers, its little better the a small car, if u assume: 4 passenger & 80kw...
  12. C

    better custom shape pouch cell batterys, triangle e.g.?

    Put simply, pouch cells lack the flexibility of 18650S e.g to be shaped to suit. They conventionally prefer a regular brick shape. Triangular 3.2v/3.7v pouches exist, but a tad obscure. Fine, if they suit in the below scenario even better if available. BUT a same maker 10ah pouch e.g...
  13. C

    A lighter cruiser? Maybe a modded ladies bike?

    A moot idea for discussion? A ladies is structurally inferior as it lacks the crossbar of a mens. So, the remaining lower 2 sides of the triangle have to be made stronger and heavier. The advantage for ebikers is there is no "ceiling" on the ideal mounting point for heavy components. A...
  14. C

    underwater pumped storage/~battery

    http://www.economist.com/news/science-and-technology/21709527-pumped-storage-gets-makeover-depths-imagination my comment: "Well yes, but what about also getting a leg up from tides? A seasonal 15m tide range is the globes biggest in bay of fundy, but big tides are not uncommon, especially in...
  15. C

    EMALS, linear motor carrier jet launch system

    https://en.wikipedia.org/wiki/Electromagnetic_Aircraft_Launch_System 45 tonnes to 240kph on a carrier deck. U would think it a boon for commercial jets eventually u would think remoter, hi altitude airports (plateaus?) on HSRail to population centers would help save fuel too - denver is very...
  16. C

    Promising commuter ebike? Gyro unicycle.

    Marry the gyroscopic magic of hoverboards with the seemingly forgotten (except by clowns, who also seem a bit forgotten) unicycle. It ticks many boxes. Decent size wheel, seat, compact w/o folding, light but strong, simple, cheap... For muscle...
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    ebay hall effect foot accelerator, perhaps fyi?

    Heresy? I mean seriously, do any of you 500w+ guys (all of u in usa it seems), ever actually pedal? Of course you do, we believe you, but if u didnt, then the pedals could be construed as a superfluous PITA (do US rules insist on them?). In which case, there is scope for a foot accelerator...
  18. C

    worlds steepest street, awesome vid

    trike down "worlds steepest street", awesome vid, nice story too. https://www.theguardian.com/world/2016/jul/23/jaffas-and-daredevils-life-on-the-worlds-steepest-street
  19. C

    help, lifepo4, internal resistance vs size, parallel..??

    All too hard for me, i have searched, no joy Issues re a good cheap durable pouch cell lifepo4 (LFP) utility batteries? please consider in cheap ass 2-350w mode, not 750w+ US mode :). Batteries are definitely THE expensive achilles heel of ebike/evs. For the frugal majority on the planet, 350...
  20. C

    Synthesis on an ebike limn>lifepo4 battery swap please?

    TBH I have not searched this, but i have read a lot on lifepo4/lfp & not seen it mentioned directly. In short, ARE THERE TRAPS IN CONTROLLER SETTINGS WHEN "UPGRADING" CHEMISTRY FROM LIMN 18650 PAKS TO LPF PACKS? Clearly the differing chemistry cells and packs have different voltages etc., so...
  21. C

    Do EV pouch cells prefer to be laid flat/horizontal?

    I have never seen reference to it being relevant, but intuitively, road shocks on a vertical long thin delicate pouch cell do sound stressful. It would be good if I could be reassured that any positioning for my lifepo4 battery on my ebike is ok though.
  22. C

    Links FYI; BYD, alloy block batts, UPS hybrid vans

    https://www.trucks.com/2016/06/22/israeli-startups-charge-truck-market/ https://www.trucks.com/2016/05/03/ups-places-large-workhorse-hybrid-delivery-truck-order/ http://gas2.org/2016/05/25/ups-hybrid-electric-delivery-van/ https://en.wikipedia.org/wiki/BYD_Qin...
  23. C

    Fresh i hope. Off grid ebike touring, wind recharge. ~0 kg.

    Clearly, solar is too; weak, bulky & heavy for general off grid ebiking at this time. you can get an idea of whats commercially doable here, but am v skeptical of claimed power & odds of good sun when riding. http://www.ridethesolarwind.be/en/product.php If, as one does, you make camp at...
  24. C

    Cascade hybrid batteries

    Unless u r good at skimming, i am not suggesting u read http://ntnu.diva-portal.org/smash/get/diva2:174476/FULLTEXT01.pdf Its a v hi brow thesis, but it has moments of concise clarity to we mortals. ~ " “Cascade multilevel converter in hybrid electric vehicles,”" sadly i cant paste pertinent...
  25. C

    A well meant suggestion my helpful friends, Gary the Goat

    If you are unfamiliar with them, delightful clips on youtube. Bear with it. Its deeper than you think. Watch the "solving the worlds problems" one ~last tho (very profound, but ~earnest and a little repetitive - like a last chapter, a wrap up).
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