火曜日, 9月 30, 2008

さて、モータロイもどきは低価格でいくらでも増産できる、と自分では思っている。
そこで、昔は小排気量だったし、パソコンもなく、つけていたミニノートもとっくに紛失した。そこで、珍しく900ccという排気量で、数万キロにわたって、モータロイをいれたカワサキバイクの燃費の軌跡をたどって解析してみることにした。
http://www.fan.hi-ho.ne.jp/t-mura/seibi1.htm#nenpi

このサイトでは、燃費のグラフばかりではなく、表形式でもデータを表示してあって、親切こののうえない。オイル交換、タイヤ交換、プラグ交換、パンク履歴等いろいろな備忘録的な記録も随所に記入されているが、走行キロ数と燃費の時系列データだけを検討の対象とした。

どの回数もだいたい走行100〜150キロごとの燃費記録で、少しずつではあるが右肩あがりとなっていて、4回目のデータから、モータロイ添加(7400キロ)後のデータが、137回目のメタライザーという添加剤を入れるまで続き、さらに146回目まである。最後の走行キロ数は44700キロあまり、モータロイを入れてから、3万7000キロの間の記録である。うち一回は、燃費記録なしとして0としてあるので、この回を除いた145回について、前半72回の平均燃費は18.55、後半73回の平均燃費は21.1弱となり、三万余キロ走る間に燃費は2.4キロほど向上したことになる。

回帰統計
重相関 R 0.40686549
重決定 R2 0.165539527
補正 R2 0.159704139
標準誤差 2.676163989
観測数 145

分散分析表
自由度 変動 分散 観測された分散比 有意 F
回帰 1 203.1689901 203.1689901 28.36821285 3.80708E-07
残差 143 1024.145079 7.161853698
合計 144 1227.314069

係数 標準誤差 t P-値 下限 95% 上限 95%
切片  17.76740011 0.446216624 39.81788024 2.85637E-79 16.88536762 18.6494326
X 値 1 0.028204529 0.00529545 5.326181826 3.80708E-07 0.01773706 0.038671998

データをコピーしエクセルに貼り付け、整形してデータ解析をしてみると、明らかに右肩あがりに燃費がよくなっている結果が見てとれる。xの回帰係数0.028は、平均走行250キロほどで、モータロイをいれていると燃費がよくなっていく、ということを示す。投入前の燃費は17.75程だったと考えられる。2500キロで0.28、一万キロでリッターあたり1キロほど燃費が伸びていく、とわかる。

私の場合、ツーリング平均燃費を15キロと仮定し、同じ効果が出ると仮定すると、一万キロ走ると平均燃費は16キロ、2万キロで17キロぐらいのリッター燃費ということに。

平均燃費の標準偏差は2.5キロほど。すると、一年もすればリッター18を超えることもありうる計算になる。この方の、ツーリングの乗り方で、目標はリッター20キロをコンスタントに、としているが、平均燃費では十分に上回っている。

漢方的という形容がかってのバイク雑誌で付けられていた添加剤だが、十分に本質を言い当てているように思う。

今日も、雨の合間をぬって、走行してみたが、以前にくらべ、バイクが軽々と走る感じが強い。軽くエンジンが回っている。あれほど重いという印象がうそのように消えている。とにかく走行感覚が楽しい方向に味付けがかわり、走れば走るほど効果が期待できる。

以前、プラグを交換したとき、けっこう周りにはカーボンが貯まっていた。sho様のプラグ交換記事を見て、
http://www.geocities.jp/shonaka2001/
そのプラグがきれいなことに驚いた記憶があるが、このカワサキ氏のシリンダーへっどもやプラグまわりもきれいで、スズがついたような銀色っぽい光沢さえ感じられるようであった。プラグの電極が比較的早く溶ける、というようなことも記録しているので、スパーク火花も十分に強力なのだろう。


Firefox meter



なかのひと

20 件のコメント:

  1. Sap in the barbarity with two backs casinos? digging this advanced [url=http://www.realcazinoz.com]casino[/url] lodestar and seize up online casino games like slots, blackjack, roulette, baccarat and more at www.realcazinoz.com .
    you can also spine our real [url=http://freecasinogames2010.webs.com]casino[/url] cicerone at http://freecasinogames2010.webs.com and grasp in legitimate folding shin-plasters !
    another refinement [url=http://www.ttittancasino.com]casino spiele[/url] place is www.ttittancasino.com , because german gamblers, blurt old-fashioned in manumitted online casino bonus.

    返信削除
  2. This blog was... how do I say it? Relevant!!
    Finally I have found something which helped me. Thanks!
    Feel free to surf my web site best casino bonuses no deposit

    返信削除
  3. Hi to every one, the contents present at this website are
    truly remarkable for people experience, well, keep up the good work fellows.
    Stop by my weblog no casino deposit bonus codes

    返信削除
  4. Hello, its nice piece of writing on the topic of media print, we all be familiar with media
    is a impressive source of data.

    Here is my webpage :: online casino australia real money

    返信削除
  5. Hey there! Quick question that's totally off topic. Do you know how to make your site mobile friendly? My website looks weird when viewing from my apple iphone. I'm
    trying to find a theme or plugin that might be able to
    correct this issue. If you have any suggestions, please share.
    Cheers!

    Feel free to visit my blog: http://www.awebcafe.com/blogs/viewstory/491452
    My web site - http://izoneface.com

    返信削除
  6. Greetings! Very helpful advice within this post! It is
    the little changes which will make the greatest changes.

    Thanks for sharing!

    Also visit my webpage; Journals.Fotki.com

    返信削除
  7. My brother recommended I may like this blog. He was once totally right.
    This put up truly made my day. You can not believe simply how so much
    time I had spent for this info! Thank you!

    Also visit my blog post netent casino

    返信削除
  8. Aw, this was a really good post. Spending some
    time and actual effort to generate a very good article… but what can I say… I put things
    off a whole lot and don't seem to get nearly anything done.

    Also visit my web page ... netent casino

    返信削除
  9. Hi just wanted to give you a quick heads up and let you know a few of the images aren't loading properly. I'm not sure why but I think its a linking issue.

    I've tried it in two different internet browsers and both show the same outcome.

    Feel free to visit my web-site: netent casino no deposit bonus

    返信削除
  10. I don't even know how I stopped up right here, however I thought this submit was good. I don't recognise who you're however definitely you're going to a famous blogger for those who
    aren't already. Cheers!

    Feel free to visit my blog post; netent casinos no deposit
    Also see my web site: no deposit casino netent

    返信削除
  11. What's up everyone, it's my first go to see at this website,
    and article is in fact fruitful designed for me, keep up posting
    such content.

    Also visit my blog post; netent casino

    返信削除
  12. Its like you learn my mind! You seem to know so much about this, like you wrote the book in it or something.
    I believe that you can do with some percent to force the message house a little bit, however instead of that,
    this is magnificent blog. A great read. I will certainly be back.


    my blog post; net entertainment casinos

    返信削除
  13. Hi there just wanted to give you a quick heads up. The words in your article seem
    to be running off the screen in Opera. I'm not sure if this is a formatting issue or something to do with internet browser compatibility but I thought I'd post to let you know.

    The style and design look great though! Hope you get the problem solved
    soon. Thanks

    My blog; davidhust.com

    返信削除
  14. Someone essentially lend a hand to make critically posts
    I'd state. This is the very first time I frequented your website page and to this point? I surprised with the research you made to create this particular post extraordinary. Wonderful activity!

    Also visit my site - Www.Skillshare.Com

    返信削除
  15. Hello just wanted to give you a quick heads up and let you know a few of the pictures aren't loading correctly. I'm not
    sure why but I think its a linking issue. I've tried it in two different web browsers and both show the same results.

    My web-site New Casino Netent

    返信削除
  16. I blog quite often and I seriously appreciate your information.
    This article has really peaked my interest.
    I am going to bookmark your website and keep checking for new
    information about once per week. I opted in for your Feed as well.


    Here is my web blog ... gmi.btm.web.id

    返信削除
  17. Hey! Do you use Twitter? I'd like to follow you if that would be okay. I'm definitely enjoying your blog and look forward to new updates.


    my weblog; net entertainment casinos bonus

    返信削除
  18. Hello there, just became aware of your blog through Google, and found that it's really informative. I'm going to watch out for brussels.
    I will be grateful if you continue this in future.
    A lot of people will be benefited from your writing.
    Cheers!

    Here is my web blog Mycandylove.Com

    返信削除
  19. Having read this I thought it was extremely informative.
    I appreciate you taking the time and effort to put this informative article together.
    I once again find myself spending way too much time both reading
    and leaving comments. But so what, it was still worth
    it!

    Also visit my blog post - telemundovip.com

    返信削除
  20. Hey just wanted to give you a quick heads up and
    let you know a few of the images aren't loading properly. I'm not sure why but
    I think its a linking issue. I've tried it in two different internet browsers and both show the same outcome.

    My website ... net entertainment casinos

    返信削除