My daily commute is 8 miles one way, reaching a max speed of 55mph (usually only for 3 miles and only in the morning going to work \u2013 never in the evening – ATL traffic!)<\/p>\n\n\n\n
Minimum system performance is a range of = 16 miles (round trip to work) reaching a top speed of 55mph for about 30-40% of time. Daily recharge option.<\/p>\n\n\n\n
Ideally would like to be able to make a round trip to the airport. ATL international is 40 miles door to door from my house, most of the way is freeway at 55-65mph. The ideal would be able to make the trip there and back (80 mile round trip), but an option could be talk to some of the off site parking lot folks and see if a recharge option could be found. Would definitely be good promotional opportunities here…<\/p>\n\n\n\n
Target design range = 80 miles spending 70%-80% between 55-65 mph.<\/p>\n\n\n\n
This design would require significant power and capacity to achieve and the question about the aerodynamics of a VW bus becomes serious consideration.<\/p>\n\n\n\n
An intermediate design (using recharging at airport parking lot) would reduce the design to 40 mile range spending 70-80% at 55-65 mph \u2013 much easy to achieve and similar to existing designs and builds found on the internet.<\/p>\n\n\n\n
Starting the design considerations with this in mind will plan on specify components with good ranges above our initial application to allow growth in to hopefully the ideal design if not achievable in the first phase.<\/p>\n\n\n\n
Some related projects from the internet: Reference designs<\/p>\n\n\n\n
The key components I focused on the design are:<\/p>\n\n\n\n
!!!Design revisions<\/p>\n\n\n\n
Based on initial research and reference designs initial design specification: Design v1.0<\/p>\n\n\n\n
2009 01 11 – after discussion with David and more research updated design: Design v1.1<\/p>\n\n\n\n
2009 07 11 – Update for new battery selection and more details: Design v1.2<\/p>\n\n\n\n
!!!Current design<\/p>\n\n\n\n
Current version of Schematics an associated Theory of operation<\/p>\n\n\n\n
EV calc model<\/p>\n\n\n\n
|Motor|Net Gain Wrap 9|<\/p>\n\n\n\n
|Controller|Curtis 1231C|<\/p>\n\n\n\n
|Batteries|Costco 115Ah\/12v x 12|<\/p>\n\n\n\n
|Charger|Zivan NG 3 110\/220 charger|<\/p>\n\n\n\n
|Clutch|Yes|<\/p>\n\n\n\n
|Motor|Net Gain Wrap 9|<\/p>\n\n\n\n
|Controller|Logisystems 144-156v 750A|<\/p>\n\n\n\n
|Batteries|Costco 115Ah\/12v x 12|<\/p>\n\n\n\n
|Charger|Manzanita Micro PCF 20|<\/p>\n\n\n\n
|Clutch|Yes|<\/p>\n\n\n\n
|Primary circuit|Fuse, Contactor, Manual disconnect (with driver operated cable)|<\/p>\n\n\n\n
|Secondary circuit|Fuse, Key-switch, Inertia kill switch, Charger interlock|<\/p>\n\n\n\n
|Motor|Net Gain Wrap 9|<\/p>\n\n\n\n
|Controller|Logisystems 144-156v 750A|<\/p>\n\n\n\n
|Batteries|Max Rate AGM 12 x 12v|<\/p>\n\n\n\n
|Charger|Manzanita Micro PCF 20|<\/p>\n\n\n\n
|Clutch|Yes|<\/p>\n\n\n\n
|Primary circuit|Fuse, Circuit breaker, Contacter (x2), Manual disconnect|<\/p>\n\n\n\n
|Secondary protection circuit|Fuse, Key-switch, Inertia kill switch, Charger interlock, (Brake interlock)|<\/p>\n\n\n\n
|Secondary warning system|Motor overheat, Charger interlock, System ready, Brush wear warning|<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Project design goal My daily commute is 8 miles one way, reaching a max speed of 55mph (usually only for 3 miles and only in the morning going to work \u2013 never in the evening – ATL traffic!) Minimum system performance is a range of = 16 miles (round trip to work) reaching a top […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[11],"class_list":["post-101","page","type-page","status-publish","hentry","category-design"],"_links":{"self":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=101"}],"version-history":[{"count":3,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/101\/revisions"}],"predecessor-version":[{"id":711,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/101\/revisions\/711"}],"wp:attachment":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}