View Single Post
Old 06-07-2012, 02:56 PM   #1 (permalink)
EZP 545
EcoModding Lurker
 
EZP 545's Avatar
 
Join Date: Mar 2011
Location: new zealand
Posts: 23
Thanks: 8
Thanked 6 Times in 5 Posts
Subaru EV Van & range extending gensets (incl. Prius engine+generator trailer) - pics

A small Subaru van with an Advanced DC 9" motor, using Thundersky 90ah @ 120v which gives 60km range on EV mode.

The van is just entering commuter usage, and when the bugs are ironed out, the 10kw trailer will be able to sustain 80km/hr on the flat.





Pictures are with Lead acid batteries, range here was only 18-20km, the leads were 4years old and had done 4000km, not a good return on the $2000+, relates to 50c/km battery replacement, before the 5-7c/km electricity charge. Result is about 5X the running cost of a prius nhw20. I hope the Thunderskys can make this lower cost than the Prius, which will happen when the 2000 charge cycles are reached.



The van has an onboard 5Kva Honda get you home device that is shoehorned behind the bumper. This was essential when the range was limited, but will probably be removed as a weight saving, if the Thundersky range is enough for my general use.

Next: Prius based generator on a trailer

A power trailer set up using a Prius NHW10 ic motor and its electric motor reconfigured to a generator is now ready to try on the road. . Early trials indicate 2X the watthours out when compared to a 5kw Honda genset unit. Weight penalty, but at double the output for fuel (petrol at this stage) I figure worth the handicap.

Modification to the ignition, oil switching for valve timing, SU carburetor and Yaris starter and flywheel was required to enable manual control . The throttle is now ardiuno servo controlled to maintain 52V for charging the 48v intermediate battery, at up to 200A. ( 10kw)

A calibrated fuel reservoir( not pictured) was used for static load tests.


The Prius Nhw10 1999 (car only, no trailer) on a test course (10km) used 60ml of fuel per km. Next, With the power coming only from the trailer generator, (car in EV mode) 68ml /kmwas used. This was better than expected as the trailer has drag, and the energy losses from mechanical to electrical, and DC-DC conversion to the HV system.



With a wood gassifier feeding the Prius engine, Wood Consumption is hoped to be 5kg of small blocks for around 20-30km. (figure that 25km to the deck chair is good!)

Attached Thumbnails
Click image for larger version

Name:	subaru-van-1.jpg
Views:	949
Size:	45.4 KB
ID:	10968   Click image for larger version

Name:	subaru-van-2.jpg
Views:	963
Size:	69.1 KB
ID:	10969   Click image for larger version

Name:	subaru-van-3.jpg
Views:	918
Size:	63.9 KB
ID:	10970   Click image for larger version

Name:	prius-genset-trailer.jpg
Views:	970
Size:	36.7 KB
ID:	10971   Click image for larger version

Name:	99-prius-prius-trailer.jpg
Views:	181
Size:	40.5 KB
ID:	10972  


Last edited by EZP 545; 06-13-2012 at 07:27 PM.. Reason: to make easier reading, rearranged title positions,additional info on lead/lithium ion comparisons. etc
  Reply With Quote
The Following 2 Users Say Thank You to EZP 545 For This Useful Post:
afdhalatifftan (07-06-2012), Ryland (06-08-2012)