{"id":5909,"date":"2019-03-09T18:05:25","date_gmt":"2019-03-09T17:05:25","guid":{"rendered":"https:\/\/kiube.se\/projekt\/?p=5909"},"modified":"2019-03-09T20:42:09","modified_gmt":"2019-03-09T19:42:09","slug":"forskning-av-motorleverantor-och-modell","status":"publish","type":"post","link":"https:\/\/kiube.se\/projekt\/5909","title":{"rendered":"Forskning av motorleverant\u00f6r och modell"},"content":{"rendered":"<p>En av v\u00e5ra testobjekt, en Biltema Yosemite LowStep 3, med f\u00f6ljande motor. Motor sannolikt tillverkat av Shengyi<\/p>\n<div data-carousel-extra='{&quot;blog_id&quot;:72,&quot;permalink&quot;:&quot;https:\/\/kiube.se\/projekt\/5909&quot;}' id='gallery-1' class='gallery galleryid-5909 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/kiube.se\/projekt\/5890\/img_1343'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170813\/IMG_1343-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"5893\" data-permalink=\"https:\/\/kiube.se\/projekt\/5890\/img_1343\" data-orig-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170813\/IMG_1343.jpg\" data-orig-size=\"4032,3024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.2&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 6s&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1551730404&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.15&quot;,&quot;iso&quot;:&quot;160&quot;,&quot;shutter_speed&quot;:&quot;0.03030303030303&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_1343\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170813\/IMG_1343-1024x768.jpg\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/kiube.se\/projekt\/5890\/img_1342'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170814\/IMG_1342-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"5892\" data-permalink=\"https:\/\/kiube.se\/projekt\/5890\/img_1342\" data-orig-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170814\/IMG_1342.jpg\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.2&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 6s&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1551730399&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.15&quot;,&quot;iso&quot;:&quot;160&quot;,&quot;shutter_speed&quot;:&quot;0.03030303030303&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_1342\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170814\/IMG_1342-768x1024.jpg\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/kiube.se\/projekt\/5890\/img_1340'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170815\/IMG_1340-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"5891\" data-permalink=\"https:\/\/kiube.se\/projekt\/5890\/img_1340\" data-orig-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170815\/IMG_1340.jpg\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.2&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 6s&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1551728177&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.15&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.03030303030303&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_1340\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170815\/IMG_1340-768x1024.jpg\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>Based on info below<\/p>\n<pre>Kv:\r\nNumber of pole pairs (calculated):68.8\r\nRs:\r\nLs:\r\n\r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>Liknande motor fr\u00e5n Shengyi<\/p>\n<h1>High Speed Brushless Motor Hub (V\/Disc Brake)<\/h1>\n<p><strong>Magnet rate<\/strong>:16Poles,20Poles<\/p>\n<p><strong>Reduction gear ratio:<\/strong>1:4.3<\/p>\n<p><strong>Hall sensor:<\/strong>With\/Without<\/p>\n<p><a href=\"http:\/\/www.syimotor.com\/productDe_10.html\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5910\" data-permalink=\"https:\/\/kiube.se\/projekt\/5909\/attachment\/2017030458750609\" data-orig-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170812\/2017030458750609.png\" data-orig-size=\"526,396\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"2017030458750609\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170812\/2017030458750609.png\" class=\"size-full wp-image-5910 alignright\" src=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170812\/2017030458750609.png\" alt=\"\" width=\"526\" height=\"396\" srcset=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170812\/2017030458750609.png 526w, https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170812\/2017030458750609-300x226.png 300w\" sizes=\"auto, (max-width: 526px) 100vw, 526px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>Testobjekt 2, en mittmotor fr\u00e5n<\/p>\n<h2>Tongsheng |<a href=\"http:\/\/www.tsbicycle.net\/products_detail\/productId=136.html\">TSDZ2<\/a> |<\/h2>\n<p><a href=\"https:\/\/opensourceebikefirmware.bitbucket.io\/development_tsdz2\/About_Tongsheng_TSDZ2_mid_drive_motors.html\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5915\" data-permalink=\"https:\/\/kiube.se\/projekt\/5909\/119-2\" data-orig-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2.png\" data-orig-size=\"1280,720\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"119-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2-1024x576.png\" class=\"alignnone size-large wp-image-5915\" src=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2-1024x576.png\" alt=\"\" width=\"1024\" height=\"576\" srcset=\"https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2-1024x576.png 1024w, https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2-300x169.png 300w, https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2-768x432.png 768w, https:\/\/s3.eu-north-1.amazonaws.com\/kiube.se\/wp-content\/uploads\/sites\/72\/2019\/03\/26170811\/119-2.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/opensourceebikefirmware.bitbucket.io\/development_tsdz2\/About_Tongsheng_TSDZ2_mid_drive_motors--Motor.html\">Data on open sourcebikefirmware<\/a><\/p>\n<p><strong>Calculated values for 36V motor<\/strong><\/p>\n<p>Let&#8217;s make some assumptions and deductions:<br \/>\n1. Lower voltage electromagnetic components have fewer turns per winding. The number of turns is directly proportional to applied voltage.<\/p>\n<p>So, the ratio of turns between 36V and 48V is 36\/48 = 3\/4.<\/p>\n<p>2.Inductance is proportional to the square of number of turns, so the ratio of inductance is therefore 3*3\/4\/4=9\/16.<\/p>\n<p>3.Assume the 36V motor follows these rules.therefore, its inductance is: L = 135uH * 9\/16 = <strong>76uH<\/strong><\/p>\n<p>4.Resistance is directly proportional to number of turns, so the 36V motor resistance is: R = 0.125 * 3\/4 = <strong>0.094ohm<\/strong><\/p>\n<p>Experiments done with the <strong>36V<\/strong> motor, <strong>8 pole pairs<\/strong>, 4000 RPMs. ==&gt; <strong>ev Kv 111,111<\/strong><br \/>\nMotor has 8 poles, so the measured speed in RPMs = 60 \/ (0.00194 * 8) = 3866 RPMs.<\/p>\n<p><strong>Reduction gear ratio<\/strong>: 1:41.8 | <a href=\"https:\/\/www.amazon.com\/Sensored-Electric-Bicycle-Conversion-Display\/dp\/B07HT59D9L\">source1<\/a> ]<br \/>\nTheoretical values (<a href=\"https:\/\/www.ebikes.ca\/documents\/Phaserunner_Manual_Rev2.0.pdf\">how to calculate Phaserunner<\/a>\u00a0page 7)<\/p>\n<p>Numbers of Pole pair (calculated): ? 8 x 41,8 = <strong>344,4<\/strong><\/p>\n<p>&nbsp;<\/p>\n<pre><strong>Kv<\/strong>: 111,11 RPM\/V\r\n<strong>Number of pole pairs (calculated)<\/strong>:344.4 \r\n<strong>Rs<\/strong>: 94 mOhms\r\n<strong>Ls<\/strong>: 76 uH<\/pre>\n<p>Inst\u00e4llningar f\u00f6r mjukvara:<\/p>\n<p>[Autotune v\u00e4rde]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large\" src=\"https:\/\/yellotab.se\/x053\/wp-content\/uploads\/sites\/41\/2019\/03\/screen-capture-327.png\" width=\"975\" height=\"811\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>En av v\u00e5ra testobjekt, en Biltema Yosemite LowStep 3, med f\u00f6ljande motor. Motor sannolikt tillverkat av Shengyi Based on info below Kv: Number of pole pairs (calculated):68.8 Rs: Ls: &nbsp; &nbsp; Liknande motor fr\u00e5n Shengyi High Speed Brushless Motor Hub (V\/Disc Brake) Magnet rate:16Poles,20Poles Reduction gear ratio:1:4.3 Hall sensor:With\/Without &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [&hellip;]<\/p>\n","protected":false},"author":131,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"single.php","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[210],"tags":[236,235,78],"class_list":["post-5909","post","type-post","status-publish","format-standard","hentry","category-projekt-027","tag-biltema-yosemite","tag-forskning","tag-motor"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p8EJTZ-1xj","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/posts\/5909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/users\/131"}],"replies":[{"embeddable":true,"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/comments?post=5909"}],"version-history":[{"count":0,"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/posts\/5909\/revisions"}],"wp:attachment":[{"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/media?parent=5909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/categories?post=5909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiube.se\/projekt\/wp-json\/wp\/v2\/tags?post=5909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}