My first EV which is call Transformer I, was design to pull a stream line genset that was rated at 125/250 vac 60 hz 3 phase delta 37.5 kw back in 76. This unit can also be used for a emergency generator for a home or use as a work site generator.
The power cable connector is a Power Anderson AC 200 amp 2 wire DC power pins, 4 wire AC 125/250 vac pins and 2 control pins. The AC input plug can be either use for power from the genset or from commercial power. Two control pins are use to start and stop this unit. The circuitry from the motor controller to the battery pack remains the same with two 600 amp contactors between the motor controller and battery pack. These two safety contactors are turn off when the EV is not in motion which isolates the battery pack from the motor controller. There is also is a DC contactor between the on board charger and battery pack that disconnects the charger while the EV is in motion. The genset charges the battery pack and provides power to the motor controller. At the time the batteries are being charge, the batteries do not provide battery power to the motor controller, only the genset provides the power to the motor controller. This is the same current flow in a ICE with a alternator for your accessory battery. Only when you start the engine, the accessory battery provides power to the starter motor at this one time. As the alternator comes up to excitation rpm and the alternator voltage is above the battery voltage, the alternator charges the battery and provides 100% of the accessory voltage to the vehicle. As the genset is charging the main battery pack on a EV while the EV is running, the battery is not providing the power to the vehicle while the main battery pack is charging. If the alternator or generator voltage drops below the battery voltage, then only at this time, the battery is providing 100% of the power Roland ----- Original Message ----- From: brucedp5<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Sent: Tuesday, August 06, 2013 3:26 AM Subject: [EVDL] EVLN: EP Tender 22kW trailered genset http://www.dvice.com/2013-7-30/little-trailer-backup-charger-your-electric-vehicle<http://www.dvice.com/2013-7-30/little-trailer-backup-charger-your-electric-vehicle> This little trailer is a backup charger for your Electric Vehicle Colin Druce-McFadden July 30, 2013 [images / EP Tender http://www.dvice.com/sites/dvice/files/styles/blog_post_media/public/ep-tender-hatch-ev-1.jpg?itok=ikkdo3Fq<http://www.dvice.com/sites/dvice/files/styles/blog_post_media/public/ep-tender-hatch-ev-1.jpg?itok=ikkdo3Fq> http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender2.JPG?itok=DYhx4fed<http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender2.JPG?itok=DYhx4fed> http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender3.JPG?itok=3UY_F73a<http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender3.JPG?itok=3UY_F73a> http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender5.JPG?itok=myG9igIJ<http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender5.JPG?itok=myG9igIJ> http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender6.jpg?itok=KJK-k-NU<http://www.dvice.com/sites/dvice/files/styles/media_gallery_image/public/Tender6.jpg?itok=KJK-k-NU> ] Electric Vehicle (EV) drivers are a hardy bunch. For their low-carbon footprint, they've sacrificed a whole lot of the freedom of the open road which is embedded in modern society. Restricted by their vehicle's range, these folks have to do a fair amount of calculating when it comes to visiting out-of-town friends — that is, unless they're willing to add a few hours to their trip for recharging at a gas station in the middle of nowhere. But the plight of the EV owner may now be at an end. Long before Elon Musk completes his grid of battery-swap Tesla stations, this little trailer could free EVs from the plug. Called the EP Tender, the trailer is essentially a generator on wheels. A cable, running from the EP Tender to the car, detects any "low-battery" warnings the EV might give off. Once a warning is detected, the generator switches on and feeds electricity to the starving batteries. The generator inside the EP Tender is capable of putting out 22kW of energy while traveling at 80 mph. That's enough juice to extend the range of some EVs by as much as 360 miles. Certainly a lifeline, the system does however bring up an interesting conundrum for those who own EVs. After having chosen a vehicle which emits zero carbon emissions, they will have to knowingly strap a generator onto the back of it to extend their range. With separate models designed for EV motorcycles and hybrids as well, the folks behind EP Tender are betting that most drivers will opt for range over emissions — at least once in a while. User Comments Sustainable - I wonder how they plan to get power into the vehicle. The charge port on a Leaf is on the FRONT! I heard that the original working prototype for the Volt was an EV-1 with a similar generator on a trailer behind. [©2013, DVICE] For all EVLN posts use: http://electric-vehicle-discussion-list.413529.n4.nabble.com/template/NamlServlet.jtp?macro=search_page&node=413529&query=evln&sort=date<http://electric-vehicle-discussion-list.413529.n4.nabble.com/template/NamlServlet.jtp?macro=search_page&node=413529&query=evln&sort=date> Here are today's archive-only EV posts: EVLN: Plugins mark a new venture for British Gas EVLN: Why we need a more consumer-friendly rating for plugin savings EVLN: Dallas' TXU wind-energy recharges EVs for free/nil 10p-6a EVLN: Oregon gas tax to be replaced by mileage tax EVLN: NASA’s surface rover is a plug-in EV r:500mi + EVLN: New Zealand EV parallel-parks using 4 independent wheels (videos) {brucedp.150m.com} -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-EP-Tender-22kW-trailered-genset-tp4664602.html<http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-EP-Tender-22kW-trailered-genset-tp4664602.html> Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub<http://www.evdl.org/help/index.html#usub> http://lists.evdl.org/listinfo.cgi/ev-evdl.org<http://lists.evdl.org/listinfo.cgi/ev-evdl.org> For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA<http://groups.yahoo.com/group/NEDRA>) -------------- next part -------------- An HTML attachment was scrubbed... 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